Import unmodified NetBSD libc in trunk

This patch imports the unmodified current version of NetBSD libc.
The NetBSD includes are in /nbsd_include, while the libc code itself is 
split between lib/nbsd_libc and common/lib/libc.

lib/nbsd_libc/string/Lint_bcmp.c

@@ -0,0 +1,17 @@
+/* $NetBSD: Lint_bcmp.c,v 1.2 2000/06/14 06:49:07 cgd Exp $ */
+
+/*
+ * This file placed in the public domain.
+ * Chris Demetriou, November 5, 1997.
+ */
+
+#include <string.h>
+
+/*ARGSUSED*/
+int
+bcmp(b1, b2, len)
+	const void *b1, *b2;
+	size_t len;
+{
+	return (0);
+}

lib/nbsd_libc/string/Lint_bcopy.c

@@ -0,0 +1,17 @@
+/* $NetBSD: Lint_bcopy.c,v 1.2 2000/06/14 06:49:07 cgd Exp $ */
+
+/*
+ * This file placed in the public domain.
+ * Chris Demetriou, November 5, 1997.
+ */
+
+#include <string.h>
+
+/*ARGSUSED*/
+void
+bcopy(src, dst, len)
+	const void *src;
+	void *dst;
+	size_t len;
+{
+}

lib/nbsd_libc/string/Lint_bzero.c

@@ -0,0 +1,16 @@
+/* $NetBSD: Lint_bzero.c,v 1.2 2000/06/14 06:49:07 cgd Exp $ */
+
+/*
+ * This file placed in the public domain.
+ * Chris Demetriou, November 5, 1997.
+ */
+
+#include <string.h>
+
+/*ARGSUSED*/
+void
+bzero(src, len)
+	void *src;
+	size_t len;
+{
+}

lib/nbsd_libc/string/Lint_ffs.c

@@ -0,0 +1,15 @@
+/* $NetBSD: Lint_ffs.c,v 1.3 2009/08/05 16:08:00 joerg Exp $ */
+
+/*
+ * This file placed in the public domain.
+ * Chris Demetriou, November 5, 1997.
+ */
+
+#include <strings.h>
+
+/*ARGSUSED*/
+int
+ffs(int value)
+{
+	return(0);
+}

lib/nbsd_libc/string/Lint_index.c

@@ -0,0 +1,17 @@
+/* $NetBSD: Lint_index.c,v 1.2 2000/06/14 06:49:07 cgd Exp $ */
+
+/*
+ * This file placed in the public domain.
+ * Chris Demetriou, November 5, 1997.
+ */
+
+#include <string.h>
+
+/*ARGSUSED*/
+char *
+index(src, c)
+	const char *src;
+	int c;
+{
+	return (0);
+}

lib/nbsd_libc/string/Lint_memccpy.c

@@ -0,0 +1,19 @@
+/*	$NetBSD: Lint_memccpy.c,v 1.1 1997/12/07 00:24:58 matthias Exp $	*/
+
+/*
+ * This file placed in the public domain.
+ * Matthias Pfaller, December 5, 1997.
+ */
+
+#include <string.h>
+
+/*ARGSUSED*/
+void *
+memccpy(dst, src, c, n)
+	void *dst;
+	const void *src;
+	int c;
+	size_t n;
+{
+	return(0);
+}

lib/nbsd_libc/string/Lint_memchr.c

@@ -0,0 +1,18 @@
+/* $NetBSD: Lint_memchr.c,v 1.2 2000/06/14 06:49:07 cgd Exp $ */
+
+/*
+ * This file placed in the public domain.
+ * Chris Demetriou, November 5, 1997.
+ */
+
+#include <string.h>
+
+/*ARGSUSED*/
+void *
+memchr(b, c, len)
+	const void *b;
+	int c;
+	size_t len;
+{
+	return (0);
+}

lib/nbsd_libc/string/Lint_memcmp.c

@@ -0,0 +1,17 @@
+/* $NetBSD: Lint_memcmp.c,v 1.2 2000/06/14 06:49:08 cgd Exp $ */
+
+/*
+ * This file placed in the public domain.
+ * Chris Demetriou, November 5, 1997.
+ */
+
+#include <string.h>
+
+/*ARGSUSED*/
+int
+memcmp(b1, b2, len)
+	const void *b1, *b2;
+	size_t len;
+{
+	return (0);
+}

lib/nbsd_libc/string/Lint_memcpy.c

@@ -0,0 +1,18 @@
+/* $NetBSD: Lint_memcpy.c,v 1.2 2000/06/14 06:49:08 cgd Exp $ */
+
+/*
+ * This file placed in the public domain.
+ * Chris Demetriou, November 5, 1997.
+ */
+
+#include <string.h>
+
+/*ARGSUSED*/
+void *
+memcpy(dst, src, len)
+	void *dst;
+	const void *src;
+	size_t len;
+{
+	return (0);
+}

lib/nbsd_libc/string/Lint_memmove.c

@@ -0,0 +1,18 @@
+/* $NetBSD: Lint_memmove.c,v 1.2 2000/06/14 06:49:08 cgd Exp $ */
+
+/*
+ * This file placed in the public domain.
+ * Chris Demetriou, November 5, 1997.
+ */
+
+#include <string.h>
+
+/*ARGSUSED*/
+void *
+memmove(dst, src, len)
+	void *dst;
+	const void *src;
+	size_t len;
+{
+	return (0);
+}

lib/nbsd_libc/string/Lint_memset.c

@@ -0,0 +1,18 @@
+/* $NetBSD: Lint_memset.c,v 1.2 2000/06/14 06:49:08 cgd Exp $ */
+
+/*
+ * This file placed in the public domain.
+ * Chris Demetriou, November 5, 1997.
+ */
+
+#include <string.h>
+
+/*ARGSUSED*/
+void *
+memset(b, c, len)
+	void *b;
+	int c;
+	size_t len;
+{
+	return (0);
+}

lib/nbsd_libc/string/Lint_rindex.c

@@ -0,0 +1,17 @@
+/* $NetBSD: Lint_rindex.c,v 1.2 2000/06/14 06:49:08 cgd Exp $ */
+
+/*
+ * This file placed in the public domain.
+ * Chris Demetriou, November 5, 1997.
+ */
+
+#include <string.h>
+
+/*ARGSUSED*/
+char *
+rindex(src, c)
+	const char *src;
+	int c;
+{
+	return (0);
+}

lib/nbsd_libc/string/Lint_strcat.c

@@ -0,0 +1,17 @@
+/* $NetBSD: Lint_strcat.c,v 1.2 2000/06/14 06:49:08 cgd Exp $ */
+
+/*
+ * This file placed in the public domain.
+ * Chris Demetriou, November 5, 1997.
+ */
+
+#include <string.h>
+
+/*ARGSUSED*/
+char *
+strcat(s, append)
+	char *s;
+	const char *append;
+{
+	return (0);
+}

lib/nbsd_libc/string/Lint_strchr.c

@@ -0,0 +1,17 @@
+/* $NetBSD: Lint_strchr.c,v 1.2 2000/06/14 06:49:09 cgd Exp $ */
+
+/*
+ * This file placed in the public domain.
+ * Chris Demetriou, November 5, 1997.
+ */
+
+#include <string.h>
+
+/*ARGSUSED*/
+char *
+strchr(src, c)
+	const char *src;
+	int c;
+{
+	return (0);
+}

lib/nbsd_libc/string/Lint_strcmp.c

@@ -0,0 +1,16 @@
+/* $NetBSD: Lint_strcmp.c,v 1.2 2000/06/14 06:49:09 cgd Exp $ */
+
+/*
+ * This file placed in the public domain.
+ * Chris Demetriou, November 5, 1997.
+ */
+
+#include <string.h>
+
+/*ARGSUSED*/
+int
+strcmp(s1, s2)
+	const char *s1, *s2;
+{
+	return (0);
+}

lib/nbsd_libc/string/Lint_strcpy.c

@@ -0,0 +1,17 @@
+/* $NetBSD: Lint_strcpy.c,v 1.2 2000/06/14 06:49:09 cgd Exp $ */
+
+/*
+ * This file placed in the public domain.
+ * Chris Demetriou, November 5, 1997.
+ */
+
+#include <string.h>
+
+/*ARGSUSED*/
+char *
+strcpy(dst, src)
+	char *dst;
+	const char *src;
+{
+	return (0);
+}

lib/nbsd_libc/string/Lint_strlen.c

@@ -0,0 +1,16 @@
+/* $NetBSD: Lint_strlen.c,v 1.2 2000/06/14 06:49:10 cgd Exp $ */
+
+/*
+ * This file placed in the public domain.
+ * Chris Demetriou, November 5, 1997.
+ */
+
+#include <string.h>
+
+/*ARGSUSED*/
+size_t
+strlen(s)
+	const char *s;
+{
+	return (0);
+}

lib/nbsd_libc/string/Lint_strncat.c

@@ -0,0 +1,18 @@
+/*	$NetBSD: Lint_strncat.c,v 1.1 1997/12/07 00:24:58 matthias Exp $	*/
+
+/*
+ * This file placed in the public domain.
+ * Matthias Pfaller, December 5, 1997.
+ */
+
+#include <string.h>
+
+/*ARGSUSED*/
+char *
+strncat(dst, src, n)
+	char *dst;
+	const char *src;
+	size_t n;
+{
+	return (0);
+}

lib/nbsd_libc/string/Lint_strncmp.c

@@ -0,0 +1,17 @@
+/* $NetBSD: Lint_strncmp.c,v 1.2 2000/06/14 06:49:10 cgd Exp $ */
+
+/*
+ * This file placed in the public domain.
+ * Chris Demetriou, November 5, 1997.
+ */
+
+#include <string.h>
+
+/*ARGSUSED*/
+int
+strncmp(s1, s2, len)
+	const char *s1, *s2;
+	size_t len;
+{
+	return (0);
+}

lib/nbsd_libc/string/Lint_strncpy.c

@@ -0,0 +1,18 @@
+/*	$NetBSD: Lint_strncpy.c,v 1.1 1997/12/07 00:24:58 matthias Exp $	*/
+
+/*
+ * This file placed in the public domain.
+ * Matthias Pfaller, December 5, 1997.
+ */
+
+#include <string.h>
+
+/*ARGSUSED*/
+char *
+strncpy(dst, src, n)
+	char *dst;
+	const char *src;
+	size_t n;
+{
+	return (0);
+}

lib/nbsd_libc/string/Lint_strrchr.c

@@ -0,0 +1,17 @@
+/* $NetBSD: Lint_strrchr.c,v 1.2 2000/06/14 06:49:10 cgd Exp $ */
+
+/*
+ * This file placed in the public domain.
+ * Chris Demetriou, November 5, 1997.
+ */
+
+#include <string.h>
+
+/*ARGSUSED*/
+char *
+strrchr(src, c)
+	const char *src;
+	int c;
+{
+	return (0);
+}

lib/nbsd_libc/string/Lint_swab.c

@@ -0,0 +1,14 @@
+/* $NetBSD: Lint_swab.c,v 1.3 2010/07/05 00:45:19 christos Exp $ */
+
+/*
+ * This file placed in the public domain.
+ * Chris Demetriou, November 5, 1997.
+ */
+
+#include <string.h>
+
+/*ARGSUSED*/
+void
+swab(const void *src, void *dst, ssize_t len)
+{
+}

lib/nbsd_libc/string/Makefile.inc

@@ -0,0 +1,78 @@
+#	from: @(#)Makefile.inc	8.1 (Berkeley) 6/4/93
+#	$NetBSD: Makefile.inc,v 1.75 2009/07/30 20:57:15 dsl Exp $
+
+# string sources
+.PATH: ${ARCHDIR}/string ${.CURDIR}/string
+
+# NB: if a .S version of any of these is added in the arch/*/Makefile
+# then the relevant .c file is automatically removed
+# Also adding the .c name to NO_SRCS will have the same effect
+
+SRCS+=	bm.c stpcpy.c stpncpy.c \
+	strcasecmp.c strncasecmp.c strcasestr.c strcoll.c strdup.c \
+	strerror.c strlcat.c strlcpy.c strnlen.c \
+	strmode.c strsignal.c strtok.c \
+	strtok_r.c strxfrm.c __strsignal.c strerror_r.c strndup.c \
+	stresep.c memrchr.c
+
+SRCS+=	bcmp.c bcopy.c bzero.c ffs.c memchr.c memcmp.c memset.c
+SRCS+=	strcat.c strcmp.c strcpy.c strcspn.c strlen.c
+SRCS+=	strncat.c strncmp.c strncpy.c strpbrk.c strsep.c
+SRCS+=	strspn.c strstr.c swab.c
+
+SRCS+=	memccpy.c memcpy.c memmem.c memmove.c
+SRCS+=	strchr.c strrchr.c
+SRCS+=	popcount32.c popcount64.c
+
+# wide char
+SRCS+=	wcscat.c wcschr.c wcscmp.c wcscpy.c wcscspn.c wcslcat.c wcslcpy.c \
+	wcslen.c wcsncat.c wcscasecmp.c wcsdup.c wcsncasecmp.c \
+	wcsncmp.c wcsncpy.c wcspbrk.c wcsrchr.c wcsspn.c wcsstr.c wcstok.c \
+	wcswcs.c wmemchr.c wmemcmp.c wmemcpy.c wmemmove.c wmemset.c
+CPPFLAGS.wcscmp.c+=	-I${LIBCDIR}/locale
+CPPFLAGS.wcsncmp.c+=	-I${LIBCDIR}/locale
+CPPFLAGS.wmemcmp.c+=	-I${LIBCDIR}/locale
+
+# namespace protection wrappers
+SRCS+=	_strlcat.c _strlcpy.c _strerror_r.c
+
+.include "${ARCHDIR}/string/Makefile.inc"
+
+MAN+=	bm.3 bcmp.3 bcopy.3 bstring.3 bzero.3 ffs.3 index.3 \
+	memccpy.3 memchr.3 memcmp.3 memcpy.3 memmem.3 memmove.3	memset.3 \
+	popcount.3 \
+	rindex.3 strcasecmp.3 strcat.3 strchr.3 strcmp.3 strcoll.3 \
+	strcpy.3 strcspn.3 strdup.3 strerror.3 string.3 strings.3 strlcpy.3 \
+	strlen.3 strmode.3 strpbrk.3 strrchr.3 strsep.3 \
+	strsignal.3 strspn.3 strstr.3 strtok.3 strxfrm.3 \
+	swab.3 wcstok.3 wcswidth.3 wmemchr.3 wcsdup.3 wcscasecmp.3
+
+MLINKS+=bm.3 bm_comp.3 bm.3 bm_exec.3 bm.3 bm_free.3
+MLINKS+=popcount.3 popcountl.3
+MLINKS+=popcount.3 popcountll.3
+MLINKS+=popcount.3 popcount32.3
+MLINKS+=popcount.3 popcount64.3
+MLINKS+=strcasecmp.3 strncasecmp.3
+MLINKS+=strcat.3 strncat.3
+MLINKS+=strcmp.3 strncmp.3
+MLINKS+=strcpy.3 strncpy.3 strcpy.3 stpcpy.3 strcpy.3 stpncpy.3
+MLINKS+=strlcpy.3 strlcat.3
+MLINKS+=strlen.3 strnlen.3
+MLINKS+=strstr.3 strcasestr.3
+MLINKS+=memchr.3 memrchr.3
+MLINKS+=strtok.3 strtok_r.3
+MLINKS+=strerror.3 strerror_r.3 strerror.3 perror.3 \
+	strerror.3 sys_errlist.3 strerror.3 sys_nerr.3
+MLINKS+=strdup.3 strndup.3
+MLINKS+=strsep.3 stresep.3
+MLINKS+=wmemchr.3 wmemcmp.3 wmemchr.3 wmemcpy.3 \
+	wmemchr.3 wmemmove.3 wmemchr.3 wmemset.3 \
+	wmemchr.3 wcscat.3 wmemchr.3 wcschr.3 \
+	wmemchr.3 wcscmp.3 wmemchr.3 wcscpy.3 \
+	wmemchr.3 wcscspn.3 wmemchr.3 wcslcat.3 \
+	wmemchr.3 wcslcpy.3 wmemchr.3 wcslen.3 \
+	wmemchr.3 wcsncat.3 wmemchr.3 wcsncmp.3 \
+	wmemchr.3 wcsncpy.3 wmemchr.3 wcspbrk.3 \
+	wmemchr.3 wcsrchr.3 wmemchr.3 wcsspn.3 \
+	wmemchr.3 wcsstr.3 wmemchr.3 wcswcs.3
+MLINKS+=wcscasecmp.3 wcsncasecmp.3

lib/nbsd_libc/string/__strsignal.c

@@ -0,0 +1,104 @@
+/*	$NetBSD: __strsignal.c,v 1.24 2003/08/07 16:43:46 agc Exp $	*/
+
+/*
+ * Copyright (c) 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char *sccsid = "@(#)strerror.c	5.6 (Berkeley) 5/4/91";
+#else
+__RCSID("$NetBSD: __strsignal.c,v 1.24 2003/08/07 16:43:46 agc Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include "namespace.h"
+#ifdef NLS
+#include <limits.h>
+#include <nl_types.h>
+#endif
+
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+#include "extern.h"
+#include <signal.h>
+#ifndef SIGRTMIN	/* XXX: Until we remove the #ifdef _KERNEL */
+#define SIGRTMIN	33
+#define SIGRTMAX	63
+#endif
+
+/* ARGSUSED */
+const char *
+__strsignal(num, buf, buflen)
+	int num;
+	char *buf;
+	size_t buflen;
+{
+#define	UPREFIX	"Unknown signal: %u"
+#define RPREFIX "Real time signal %u"
+	unsigned int signum;
+
+#ifdef NLS
+	nl_catd catd ;
+	catd = catopen("libc", NL_CAT_LOCALE);
+#endif
+
+	_DIAGASSERT(buf != NULL);
+
+	signum = num;				/* convert to unsigned */
+	if (signum < (unsigned int) sys_nsig) {
+#ifdef NLS
+		(void)strlcpy(buf, catgets(catd, 2, (int)signum,
+		    sys_siglist[signum]), buflen); 
+#else
+		return((char *)sys_siglist[signum]);
+#endif
+	} else if (signum >= SIGRTMIN && signum <= SIGRTMAX) {
+#ifdef NLS
+		(void)snprintf(buf, buflen, 
+	            catgets(catd, 2, SIGRTMIN, RPREFIX), signum);
+#else
+		(void)snprintf(buf, buflen, RPREFIX, signum);
+#endif
+	} else {
+#ifdef NLS
+		(void)snprintf(buf, buflen, 
+	            catgets(catd, 1, 0xffff, UPREFIX), signum);
+#else
+		(void)snprintf(buf, buflen, UPREFIX, signum);
+#endif
+	}
+
+#ifdef NLS
+	catclose(catd);
+#endif
+
+	return buf;
+}

lib/nbsd_libc/string/_strerror_r.c

@@ -0,0 +1,49 @@
+/*	$NetBSD: _strerror_r.c,v 1.3 2008/04/28 20:23:00 martin Exp $	*/
+
+/*-
+ * Copyright (c) 2005 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Christos Zoulas.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: _strerror_r.c,v 1.3 2008/04/28 20:23:00 martin Exp $");
+#endif /* LIBC_SCCS and not lint */
+
+#if defined(__indr_reference)
+__indr_reference(_strerror_r, strerror_r)
+#else
+
+#include <string.h>
+int	_strerror_r(int, char *, size_t);
+
+int
+strerror_r(int num, char *buf, size_t siz)
+{
+
+	return _strerror_r(num, buf, siz);
+}
+#endif

lib/nbsd_libc/string/_strlcat.c

@@ -0,0 +1,45 @@
+/*	$NetBSD: _strlcat.c,v 1.5 2009/10/21 01:07:45 snj Exp $	*/
+
+/*
+ * Copyright (c) 1996 Christos Zoulas.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: _strlcat.c,v 1.5 2009/10/21 01:07:45 snj Exp $");
+#endif /* LIBC_SCCS and not lint */
+
+#if defined(__indr_reference)
+__indr_reference(_strlcat, strlcat)
+#else
+
+#include <string.h>
+size_t	_strlcat(char *, const char *, size_t);
+
+size_t
+strlcat(char *dst, const char *src, size_t siz)
+{
+
+	return _strlcat(dst, src, siz);
+}
+#endif

lib/nbsd_libc/string/_strlcpy.c

@@ -0,0 +1,45 @@
+/*	$NetBSD: _strlcpy.c,v 1.5 2009/10/21 01:07:45 snj Exp $	*/
+
+/*
+ * Copyright (c) 1996 Christos Zoulas.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: _strlcpy.c,v 1.5 2009/10/21 01:07:45 snj Exp $");
+#endif /* LIBC_SCCS and not lint */
+
+#if defined(__indr_reference)
+__indr_reference(_strlcpy, strlcpy)
+#else
+
+#include <string.h>
+size_t	_strlcpy(char *, const char *, size_t);
+
+size_t
+strlcpy(char *dst, const char *src, size_t siz)
+{
+
+	return _strlcpy(dst, src, siz);
+}
+#endif

lib/nbsd_libc/string/bcmp.3

@@ -0,0 +1,85 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek.
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)bcmp.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: bcmp.3,v 1.13 2010/04/29 06:54:26 jruoho Exp $
+.\"
+.Dd April 29, 2010
+.Dt BCMP 3
+.Os
+.Sh NAME
+.Nm bcmp
+.Nd compare byte string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In strings.h
+.Ft int
+.Fn bcmp "const void *b1" "const void *b2" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn bcmp
+function
+compares byte string
+.Fa b1
+against byte string
+.Fa b2 ,
+returning zero if they are identical, non-zero otherwise.
+Both strings are assumed to be
+.Fa len
+bytes long.
+Zero-length strings are always identical.
+.Pp
+The strings may overlap.
+.Sh SEE ALSO
+.Xr memcmp 3 ,
+.Xr strcasecmp 3 ,
+.Xr strcmp 3 ,
+.Xr strcoll 3 ,
+.Xr strxfrm 3
+.Sh STANDARDS
+The
+.Fn bcmp
+function conforms to
+.St -p1003.1-2001 .
+The
+.St -p1003.1-2004
+revision marked it as legacy and recommended the use of
+.Xr memcmp 3
+instead.
+The
+.St -p1003.1-2008
+revision removed
+.Fn bcmp
+from the specification.
+.Sh HISTORY
+A
+.Fn bcmp
+function first appeared in
+.Bx 4.2 .

lib/nbsd_libc/string/bcopy.3

@@ -0,0 +1,80 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)bcopy.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: bcopy.3,v 1.13 2010/04/29 07:27:30 wiz Exp $
+.\"
+.Dd April 29, 2010
+.Dt BCOPY 3
+.Os
+.Sh NAME
+.Nm bcopy
+.Nd copy byte string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In strings.h
+.Ft void
+.Fn bcopy "const void *src" "void *dst" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn bcopy
+function
+copies
+.Fa len
+bytes from string
+.Fa src
+to string
+.Fa dst .
+The two strings may overlap.
+If
+.Fa len
+is zero, no bytes are copied.
+.Sh SEE ALSO
+.Xr memccpy 3 ,
+.Xr memcpy 3 ,
+.Xr memmove 3 ,
+.Xr strcpy 3 ,
+.Xr strncpy 3
+.Sh STANDARDS
+The
+.Fn bcmp
+function conforms to
+.St -p1003.1-2001 .
+The
+.St -p1003.1-2004
+revision marked it as legacy; the
+.St -p1003.1-2008
+revision removed it from the specification.
+.Sh HISTORY
+A
+.Fn bcopy
+function appeared in
+.Bx 4.2 .

lib/nbsd_libc/string/bm.3

@@ -0,0 +1,114 @@
+.\" $NetBSD: bm.3,v 1.8 2006/10/16 08:48:45 wiz Exp $
+.\"
+.\" Copyright (c) 1994
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Andrew Hume of AT&T Bell Laboratories.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"	from: @(#)bm.3	8.4 (Berkeley) 6/21/94
+.\"
+.Dd April 8, 2001
+.Dt BM 3
+.Os
+.Sh NAME
+.Nm bm_comp ,
+.Nm bm_exec ,
+.Nm bm_free
+.Nd Boyer-Moore string search
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sys/types.h
+.In bm.h
+.Ft bm_pat *
+.Fn bm_comp "u_char *pattern" "size_t patlen" "u_char freq[256]"
+.Ft u_char *
+.Fn bm_exec "bm_pat *pdesc" "u_char *text" "size_t len"
+.Ft void
+.Fn bm_free "bm_pat *pdesc"
+.Sh DESCRIPTION
+These routines implement an efficient mechanism to find an
+occurrence of a byte string within another byte string.
+.Pp
+.Fn bm_comp
+evaluates the
+.Fa patlen
+bytes starting at
+.Fa pattern ,
+and returns a pointer to a structure describing them.
+The bytes referenced by
+.Fa pattern
+may be of any value.
+.Pp
+The search takes advantage of the frequency distribution of the
+bytes in the text to be searched.
+If specified,
+.Fa freq
+should be an array of 256 values,
+with higher values indicating that the corresponding character occurs
+more frequently.
+(A less than optimal frequency distribution can only result in less
+than optimal performance, not incorrect results.)
+If
+.Fa freq
+is
+.Dv NULL ,
+a system default table is used.
+.Pp
+.Fn bm_exec
+returns a pointer to the leftmost occurrence of the string given to
+.Fn bm_comp
+within
+.Fa text ,
+or
+.Dv NULL
+if none occurs.
+The number of bytes in
+.Fa text
+must be specified by
+.Fa len .
+.Pp
+Space allocated for the returned description is discarded
+by calling
+.Fn bm_free
+with the returned description as an argument.
+.Pp
+The asymptotic speed of
+.Fn bm_exec
+is O(len/patlen).
+.Sh SEE ALSO
+.Xr regexp 3 ,
+.Xr strstr 3
+.Rs
+.%A Hume and Sunday
+.%D November 1991
+.%J "Software Practice and Experience"
+.%P pp. 1221-48
+.%T "Fast String Searching"
+.%V Vol. 21, 11
+.Re

lib/nbsd_libc/string/bm.c

@@ -0,0 +1,239 @@
+/*	$NetBSD: bm.c,v 1.11 2003/08/07 16:43:47 agc Exp $	*/
+
+/*-
+ * Copyright (c) 1994
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Andrew Hume of AT&T Bell Laboratories.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char sccsid[] = "@(#)bm.c	8.7 (Berkeley) 6/21/94";
+#else
+__RCSID("$NetBSD: bm.c,v 1.11 2003/08/07 16:43:47 agc Exp $");
+#endif
+#endif /* LIBC_SCCS && not lint */
+
+#include "namespace.h"
+#include <sys/types.h>
+
+#include <assert.h>
+#include <bm.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef __weak_alias
+__weak_alias(bm_comp,_bm_comp)
+__weak_alias(bm_exec,_bm_exec)
+__weak_alias(bm_free,_bm_free)
+#endif
+
+/* 
+ * XXX
+ * The default frequency table starts at 99 and counts down.  The default
+ * table should probably be oriented toward text, and will necessarily be
+ * locale specific.  This one is for English.  It was derived from the
+ * OSF/1 and 4.4BSD formatted and unformatted manual pages, and about 100Mb
+ * of email and random text.  Change it if you can find something better.
+ */
+static u_char const freq_def[256] = {
+	 0,  0,  0,  0,  0,  0,  0,  0,
+	 0, 77, 90,  0,  0,  0,  0,  0,
+	 0,  0,  0,  0,  0,  0,  0,  0,
+	 0,  0,  0,  0,  0,  0,  0,  0,
+	99, 28, 42, 27, 16, 14, 20, 51,
+	66, 65, 59, 24, 75, 76, 84, 56,
+	72, 74, 64, 55, 54, 47, 41, 37,
+	44, 61, 70, 43, 23, 53, 49, 22,
+	33, 58, 40, 46, 45, 57, 60, 26,
+	30, 63, 21, 12, 32, 50, 38, 39,
+	34, 11, 48, 67, 62, 35, 15, 29,
+	71, 18,  9, 17, 25, 13, 10, 52,
+	36, 95, 78, 86, 87, 98, 82, 80,
+	88, 94, 19, 68, 89, 83, 93, 96,
+	81,  7, 91, 92, 97, 85, 69, 73,
+	31, 79,  8,  5,  4,  6,  3,  0,
+	 0,  0,  0,  0,  0,  0,  0,  0,
+	 0,  0,  0,  0,  0,  0,  0,  0,
+	 0,  0,  0,  0,  0,  0,  0,  0,
+	 0,  0,  0,  0,  0,  0,  0,  0,
+	 0,  0,  0,  0,  0,  0,  0,  0,
+	 0,  0,  0,  0,  0,  0,  0,  0,
+	 0,  0,  0,  0,  0,  0,  0,  0,
+	 0,  0,  0,  0,  0,  0,  0,  0,
+	 0,  0,  0,  0,  0,  0,  0,  0,
+	 0,  0,  0,  0,  0,  0,  0,  0,
+	 0,  0,  0,  0,  0,  0,  0,  0,
+	 0,  0,  0,  0,  0,  0,  0,  0,
+	 0,  0,  0,  0,  0,  0,  0,  0,
+	 0,  0,  0,  0,  0,  0,  0,  0,
+	 0,  0,  0,  0,  0,  0,  0,  0,
+	 0,  0,  0,  0,  0,  0,  0,  0,
+};
+
+bm_pat *
+bm_comp(pb, len, freq)
+	u_char const *pb;
+	size_t len;
+	u_char const *freq;
+{
+	u_char const *pe, *p;
+	size_t *d, r;
+	int j;
+	int sv_errno;
+	bm_pat *pat;
+
+	_DIAGASSERT(pb != NULL);
+	/* freq may be NULL */
+
+	if (len == 0) {
+		errno = EINVAL;
+		return (NULL);
+	}
+	if ((pat = malloc(sizeof(*pat))) == NULL)
+		return (NULL);
+	pat->pat = NULL;
+	pat->delta = NULL;
+
+	pat->patlen = len;			/* copy pattern */
+	if ((pat->pat = malloc(pat->patlen)) == NULL)
+		goto mem;
+	memcpy(pat->pat, pb, pat->patlen);
+						/* get skip delta */
+	if ((pat->delta = malloc(256 * sizeof(*d))) == NULL)
+		goto mem;
+	for (j = 0, d = pat->delta; j < 256; j++)
+		d[j] = pat->patlen;
+	for (pe = pb + pat->patlen - 1; pb <= pe; pb++)
+		d[*pb] = pe - pb;
+
+	if (freq == NULL)			/* default freq table */
+		freq = freq_def;
+	r = 0;					/* get guard */
+	for (pb = pat->pat, pe = pb + pat->patlen - 1; pb < pe; pb++)
+		if (freq[*pb] < freq[pat->pat[r]])
+			r = pb - pat->pat;
+	pat->rarec = pat->pat[r];
+	pat->rareoff = r - (pat->patlen - 1);
+
+						/* get md2 shift */
+	for (pe = pat->pat + pat->patlen - 1, p = pe - 1; p >= pat->pat; p--)
+		if (*p == *pe)
+			break;
+
+	/* *p is first leftward reoccurrence of *pe */
+	pat->md2 = pe - p;
+	return (pat);
+
+mem:	sv_errno = errno;
+	bm_free(pat);
+	errno = sv_errno;
+	return (NULL);
+}
+
+void
+bm_free(pat)
+	bm_pat *pat;
+{
+
+	_DIAGASSERT(pat != NULL);
+
+	if (pat->pat != NULL)
+		free(pat->pat);
+	if (pat->delta != NULL)
+		free(pat->delta);
+	free(pat);
+}
+
+u_char *
+bm_exec(pat, base, n)
+	bm_pat *pat;
+	u_char *base;
+	size_t n;
+{
+	u_char *e, *ep, *p, *q, *s;
+	size_t *d0, k, md2, n1, ro;
+	int rc;
+
+	_DIAGASSERT(pat != NULL);
+	_DIAGASSERT(base != NULL);
+
+	if (n == 0)
+		return (NULL);
+
+	d0 = pat->delta;
+	n1 = pat->patlen - 1;
+	md2 = pat->md2;
+	ro = pat->rareoff;
+	rc = pat->rarec;
+	ep = pat->pat + pat->patlen - 1;
+	s = base + (pat->patlen - 1);
+
+	/* fast loop up to n - 3 * patlen */
+	e = base + n - 3 * pat->patlen;
+	while (s < e) {
+		k = d0[*s];		/* ufast skip loop */
+		while (k) {
+			k = d0[*(s += k)];
+			k = d0[*(s += k)];
+		}
+		if (s >= e)
+			break;
+		if (s[ro] != rc)	/* guard test */
+			goto mismatch1;
+					/* fwd match */
+		for (p = pat->pat, q = s - n1; p < ep;)
+			if (*q++ != *p++)
+				goto mismatch1;
+		return (s - n1);
+
+mismatch1:	s += md2;		/* md2 shift */
+	}
+
+	/* slow loop up to end */
+	e = base + n;
+	while (s < e) {
+		s += d0[*s];		/* step */
+		if (s >= e)
+			break;
+		if (s[ro] != rc)	/* guard test */
+			goto mismatch2;
+					/* fwd match */
+		for (p = pat->pat, q = s - n1; p <= ep;)
+			if (*q++ != *p++)
+				goto mismatch2;
+		return (s - n1);
+
+mismatch2:	s += md2;		/* md2 shift */
+	}
+
+	return (NULL);
+}

lib/nbsd_libc/string/bstring.3

@@ -0,0 +1,93 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek.
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)bstring.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: bstring.3,v 1.11 2007/02/17 09:04:57 wiz Exp $
+.\"
+.Dd February 9, 2007
+.Dt BSTRING 3
+.Os
+.Sh NAME
+.Nm memccpy ,
+.Nm memchr ,
+.Nm memcmp ,
+.Nm memcpy ,
+.Nm memmem ,
+.Nm memmove ,
+.Nm memset
+.Nd byte string operations
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft void *
+.Fn memchr "const void *b" "int c" "size_t len"
+.Ft int
+.Fn memcmp "const void *b1" "const void *b2" "size_t len"
+.Ft void *
+.Fn memccpy "void *dst" "const void *src" "int c" "size_t len"
+.Ft void *
+.Fn memcpy "void *dst" "const void *src" "size_t len"
+.Ft void *
+.Fn memmem "const void *block" "size_t blen" "const void *pat" "size_t plen"
+.Ft void *
+.Fn memmove "void *dst" "const void *src" "size_t len"
+.Ft void *
+.Fn memset "void *b" "int c" "size_t len"
+.Sh DESCRIPTION
+These functions operate on variable length strings of bytes.
+They do not check for terminating nul bytes as the routines
+listed in
+.Xr string 3
+do.
+.Pp
+See the specific manual pages for more information.
+.Sh SEE ALSO
+.Xr memccpy 3 ,
+.Xr memchr 3 ,
+.Xr memcmp 3 ,
+.Xr memcpy 3 ,
+.Xr memmem 3 ,
+.Xr memmove 3 ,
+.Xr memset 3
+.Sh STANDARDS
+The functions
+.Fn memchr ,
+.Fn memcmp ,
+.Fn memcpy ,
+.Fn memmove ,
+and
+.Fn memset
+conform to
+.St -ansiC .
+.Sh HISTORY
+The function
+.Fn memccpy
+appeared in
+.Bx 4.3 .

lib/nbsd_libc/string/bzero.3

@@ -0,0 +1,82 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)bzero.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: bzero.3,v 1.13 2010/04/29 06:54:26 jruoho Exp $
+.\"
+.Dd April 29, 2010
+.Dt BZERO 3
+.Os
+.Sh NAME
+.Nm bzero
+.Nd write zeroes to a byte string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In strings.h
+.Ft void
+.Fn bzero "void *b" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn bzero
+function
+writes
+.Fa len
+zero bytes to the string
+.Fa b .
+If
+.Fa len
+is zero,
+.Fn bzero
+does nothing.
+.Sh SEE ALSO
+.Xr memset 3 ,
+.Xr swab 3
+.Sh STANDARDS
+The
+.Fn bzero
+function conforms to
+.St -p1003.1-2001 .
+The
+.St -p1003.1-2004
+revision marked it as legacy and recommended the use of
+.Xr memset 3
+instead.
+The
+.St -p1003.1-2008
+revision removed
+.Fn bzero
+from the specification.
+.Sh HISTORY
+A
+.Fn bzero
+function
+appeared in
+.Bx 4.3 .

lib/nbsd_libc/string/ffs.3

@@ -0,0 +1,74 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek.
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)ffs.3	8.2 (Berkeley) 4/19/94
+.\"	$NetBSD: ffs.3,v 1.13 2010/04/28 07:47:09 jruoho Exp $
+.\"
+.Dd April 28, 2010
+.Dt FFS 3
+.Os
+.Sh NAME
+.Nm ffs
+.Nd find first bit set in a bit string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In strings.h
+.Ft int
+.Fn ffs "int value"
+.Sh DESCRIPTION
+The
+.Fn ffs
+function finds the first bit set in
+.Fa value
+and returns the index of that bit.
+Bits are numbered starting from 1, starting at the right-most
+bit.
+A return value of 0 means that the argument was zero.
+.Sh SEE ALSO
+.Xr bitstring 3 ,
+.Xr ffs32 3 ,
+.Xr popcount 3
+.Sh STANDARDS
+The
+.Fn ffs
+function conforms to
+.St -p1003.1-2001 .
+.Sh HISTORY
+The
+.Fn ffs
+function appeared in
+.Bx 4.3 .
+The prototype for it existed previously in the
+.In string.h
+header before it was moved to
+.In strings.h
+for
+.Tn POSIX
+compliance.

lib/nbsd_libc/string/index.3

@@ -0,0 +1,94 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek.
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)index.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: index.3,v 1.13 2010/04/29 06:54:26 jruoho Exp $
+.\"
+.Dd April 29, 2010
+.Dt INDEX 3
+.Os
+.Sh NAME
+.Nm index
+.Nd locate character in string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In strings.h
+.Ft char *
+.Fn index "const char *s" "int c"
+.Sh DESCRIPTION
+The
+.Fn index
+function
+locates the first character matching
+.Fa c
+(converted to a
+.Em char )
+in the nul-terminated string
+.Fa s .
+.Sh RETURN VALUES
+A pointer to the character is returned if it is found; otherwise
+.Dv NULL
+is returned.
+If
+.Fa c
+is '\e0',
+.Fn index
+locates the terminating '\e0'.
+.Sh SEE ALSO
+.Xr memchr 3 ,
+.Xr rindex 3 ,
+.Xr strchr 3 ,
+.Xr strcspn 3 ,
+.Xr strpbrk 3 ,
+.Xr strrchr 3 ,
+.Xr strsep 3 ,
+.Xr strspn 3 ,
+.Xr strstr 3 ,
+.Xr strtok 3
+.Sh STANDARDS
+The
+.Fn index
+function conforms to
+.St -p1003.1-2001 .
+The
+.St -p1003.1-2004
+revision marked it as legacy and recommended the use of
+.Xr strchr 3
+instead.
+The
+.St -p1003.1-2008
+revision removed
+.Fn index
+from the specification.
+.Sh HISTORY
+An
+.Fn index
+function appeared in
+.At v6 .

lib/nbsd_libc/string/index.c

@@ -0,0 +1,3 @@
+/*	$NetBSD: index.c,v 1.15 2005/12/20 19:31:50 christos Exp $	*/
+#define INDEX
+#include "strchr.c"

lib/nbsd_libc/string/memccpy.3

@@ -0,0 +1,72 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)memccpy.3	8.1 (Berkeley) 6/9/93
+.\"	$NetBSD: memccpy.3,v 1.10 2006/10/16 08:48:45 wiz Exp $
+.\"
+.Dd June 9, 1993
+.Dt MEMCCPY 3
+.Os
+.Sh NAME
+.Nm memccpy
+.Nd copy string until character found
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft void *
+.Fn memccpy "void *dst" "const void *src" "int c" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn memccpy
+function
+copies bytes from string
+.Fa src
+to string
+.Fa dst .
+If the character
+.Fa c
+(as converted to an unsigned char) occurs in the string
+.Fa src ,
+the copy stops and a pointer to the byte after the copy of
+.Fa c
+in the string
+.Fa dst
+is returned.
+Otherwise,
+.Fa len
+bytes are copied, and a null pointer is returned.
+.Sh SEE ALSO
+.Xr bcopy 3 ,
+.Xr memcpy 3 ,
+.Xr memmove 3 ,
+.Xr strcpy 3
+.Sh HISTORY
+The
+.Fn memccpy
+function first appeared in
+.Bx 4.4 .

lib/nbsd_libc/string/memccpy.c

@@ -0,0 +1,65 @@
+/*	$NetBSD: memccpy.c,v 1.12 2003/08/07 16:43:48 agc Exp $	*/
+
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char sccsid[] = "@(#)memccpy.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: memccpy.c,v 1.12 2003/08/07 16:43:48 agc Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include <assert.h>
+#include <string.h>
+
+void *
+memccpy(t, f, c, n)
+	void *t;
+	const void *f;
+	int c;
+	size_t n;
+{
+
+	_DIAGASSERT(t != 0);
+	_DIAGASSERT(f != 0);
+
+	if (n) {
+		unsigned char *tp = t;
+		const unsigned char *fp = f;
+		unsigned char uc = c;
+		do {
+			if ((*tp++ = *fp++) == uc)
+				return (tp);
+		} while (--n != 0);
+	}
+	return (0);
+}

lib/nbsd_libc/string/memchr.3

@@ -0,0 +1,94 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)memchr.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: memchr.3,v 1.11 2009/04/10 23:24:35 wiz Exp $
+.\"
+.Dd April 10, 2009
+.Dt MEMCHR 3
+.Os
+.Sh NAME
+.Nm memchr ,
+.Nm memrchr
+.Nd locate byte in byte string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft void *
+.Fn memchr "const void *b" "int c" "size_t len"
+.Ft void *
+.Fn memrchr "const void *b" "int c" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn memchr
+function
+locates the first occurrence of
+.Fa c
+(converted to an unsigned char)
+in string
+.Fa b .
+The
+.Fn memrchr
+function
+locates the last occurrence of
+.Fa c
+(converted to an unsigned char)
+in string
+.Fa b .
+.Sh RETURN VALUES
+The
+.Fn memchr
+and
+.Fn memrchr
+functions
+return a pointer to the byte located, or
+.Dv NULL
+if no such byte exists within
+.Fa len
+bytes.
+.Sh SEE ALSO
+.Xr index 3 ,
+.Xr rindex 3 ,
+.Xr strchr 3 ,
+.Xr strcspn 3 ,
+.Xr strpbrk 3 ,
+.Xr strrchr 3 ,
+.Xr strsep 3 ,
+.Xr strspn 3 ,
+.Xr strstr 3 ,
+.Xr strtok 3
+.Sh STANDARDS
+The
+.Fn memchr
+function
+conforms to
+.St -ansiC .

lib/nbsd_libc/string/memcmp.3

@@ -0,0 +1,81 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)memcmp.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: memcmp.3,v 1.9 2003/08/07 16:43:48 agc Exp $
+.\"
+.Dd June 4, 1993
+.Dt MEMCMP 3
+.Os
+.Sh NAME
+.Nm memcmp
+.Nd compare byte string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft int
+.Fn memcmp "const void *b1" "const void *b2" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn memcmp
+function
+compares byte string
+.Fa b1
+against byte string
+.Fa b2 .
+Both strings are assumed to be
+.Fa len
+bytes long.
+.Sh RETURN VALUES
+The
+.Fn memcmp
+function
+returns zero if the two strings are identical,
+otherwise returns the difference between the first two differing bytes
+(treated as unsigned char values, so that
+.Sq Li \e200
+is greater than
+.Sq Li \&\e0 ,
+for example).
+Zero-length strings are always identical.
+.Sh SEE ALSO
+.Xr bcmp 3 ,
+.Xr strcasecmp 3 ,
+.Xr strcmp 3 ,
+.Xr strcoll 3 ,
+.Xr strxfrm 3
+.Sh STANDARDS
+The
+.Fn memcmp
+function
+conforms to
+.St -ansiC .

lib/nbsd_libc/string/memcpy.3

@@ -0,0 +1,77 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)memcpy.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: memcpy.3,v 1.13 2003/09/08 17:54:33 wiz Exp $
+.\"
+.Dd June 4, 1993
+.Dt MEMCPY 3
+.Os
+.Sh NAME
+.Nm memcpy
+.Nd copy byte string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft void *
+.Fn memcpy "void * restrict dst" "const void * restrict src" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn memcpy
+function
+copies
+.Fa len
+bytes from string
+.Fa src
+to string
+.Fa dst .
+The arguments must not overlap -- behavior if the arguments overlap is
+undefined.
+To copy byte strings that overlap, use
+.Xr memmove 3 .
+.Sh RETURN VALUES
+The
+.Fn memcpy
+function
+returns the original value of
+.Fa dst .
+.Sh SEE ALSO
+.Xr bcopy 3 ,
+.Xr memccpy 3 ,
+.Xr memmove 3 ,
+.Xr strcpy 3
+.Sh STANDARDS
+The
+.Fn memcpy
+function
+conforms to
+.St -isoC-99 .

lib/nbsd_libc/string/memmem.3

@@ -0,0 +1,84 @@
+.\"	$NetBSD: memmem.3,v 1.3 2008/04/30 13:10:51 martin Exp $
+.\"
+.\" Copyright (c) 2005 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to The NetBSD Foundation
+.\" by Perry E. Metzger of Metzger, Dowdeswell & Co. LLC.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+.\" PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd March 12, 2005
+.Dt MEMMEM 3
+.Os
+.Sh NAME
+.Nm memmem
+.Nd locate substring in byte string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft void *
+.Fn memmem "const void *block" "size_t blen" "const void *pat" "size_t plen"
+.Sh DESCRIPTION
+The
+.Fn memmem
+function locates the first occurrence of the binary string
+.Fa pat
+of size
+.Fa plen
+bytes in the byte string
+.Fa block
+of size
+.Fa blen
+bytes.
+.Sh RETURN VALUES
+The
+.Fn memmem
+function returns a pointer to the substring located, or
+.Dv NULL
+if no such substring exists within
+.Fa block .
+.Pp
+If
+.Fa plen
+is zero,
+.Fa block
+is returned, i.e. a zero length
+.Fa pat
+is deemed to match the start of the string, as with
+.Xr strstr 3 .
+.Sh SEE ALSO
+.Xr bm 3 ,
+.Xr memchr 3 ,
+.Xr strchr 3 ,
+.Xr strstr 3
+.Sh STANDARDS
+The
+.Fn memmem
+function is not currently standardized.
+However, it is meant to be API compatible with functions in
+.Fx
+and Linux.
+.Sh HISTORY
+.Fn memmem
+first appeared in the Free Software Foundation's glibc library.

lib/nbsd_libc/string/memmem.c

@@ -0,0 +1,80 @@
+/*	$NetBSD: memmem.c,v 1.2 2008/04/28 20:23:00 martin Exp $	*/
+
+/*-
+ * Copyright (c) 2005 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Perry E. Metzger of Metzger, Dowdeswell & Co. LLC.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: memmem.c,v 1.2 2008/04/28 20:23:00 martin Exp $");
+#endif /* LIBC_SCCS and not lint */
+
+#if !defined(_KERNEL) && !defined(_STANDALONE)
+#include <assert.h>
+#include <string.h>
+#else
+#include <lib/libkern/libkern.h>
+#define _DIAGASSERT(x)	(void)0
+#define	NULL		((void *)0)
+#endif
+
+void *
+memmem(const void *block, size_t blen, const void *pat, size_t plen)
+{
+	const unsigned char *bp, *pp, *endp;
+
+	_DIAGASSERT(block != NULL);
+	_DIAGASSERT(pat != NULL);
+
+	/*
+	 * Following the precedent in ststr(3) and glibc, a zero
+	 * length pattern matches the start of block.
+	 */
+	if (plen == 0)
+		return __UNCONST(block);
+
+	if (blen < plen)
+		return NULL;
+
+	bp = block;
+	pp = pat;
+	endp = bp + (blen - plen) + 1;
+
+	/*
+	 * As a cheezy optimization, check that the first chars are
+	 * the same before calling memcmp. Really we should use bm(3)
+	 * to speed this up if blen is large enough.
+	 */
+	while (bp < endp) {
+		if ((*bp == *pp) && (memcmp(bp, pp, plen) == 0))
+			return __UNCONST(bp);
+		bp++;
+	}
+
+	return NULL;
+}

lib/nbsd_libc/string/memmove.3

@@ -0,0 +1,74 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)memmove.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: memmove.3,v 1.8 2003/08/07 16:43:48 agc Exp $
+.\"
+.Dd June 4, 1993
+.Dt MEMMOVE 3
+.Os
+.Sh NAME
+.Nm memmove
+.Nd copy byte string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft void *
+.Fn memmove "void *dst" "const void *src" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn memmove
+function
+copies
+.Fa len
+bytes from string
+.Fa src
+to string
+.Fa dst .
+The two strings may overlap;
+the copy is always done in a non-destructive manner.
+.Sh RETURN VALUES
+The
+.Fn memmove
+function returns the original value of
+.Fa dst .
+.Sh SEE ALSO
+.Xr bcopy 3 ,
+.Xr memccpy 3 ,
+.Xr memcpy 3 ,
+.Xr strcpy 3
+.Sh STANDARDS
+The
+.Fn memmove
+function
+conforms to
+.St -ansiC .

lib/nbsd_libc/string/memrchr.c

@@ -0,0 +1,54 @@
+/*	$NetBSD: memrchr.c,v 1.2 2009/04/11 21:42:16 christos Exp $	*/
+
+/*-
+ * Copyright (c) 2008 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Christos Zoulas.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: memrchr.c,v 1.2 2009/04/11 21:42:16 christos Exp $");
+#endif /* LIBC_SCCS and not lint */
+
+#include <assert.h>
+#include <string.h>
+
+void *
+memrchr(const void *s, int c, size_t n)
+{
+	_DIAGASSERT(s != NULL);
+
+	if (n != 0) {
+		const unsigned char *p = (const unsigned char *)s + n;
+		const unsigned char cmp = c;
+
+		do {
+			if (*--p == cmp)
+				return __UNCONST(p);
+		} while (--n != 0);
+	}
+	return NULL;
+}

lib/nbsd_libc/string/memset.3

@@ -0,0 +1,71 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)memset.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: memset.3,v 1.9 2003/08/07 16:43:49 agc Exp $
+.\"
+.Dd June 4, 1993
+.Dt MEMSET 3
+.Os
+.Sh NAME
+.Nm memset
+.Nd write a byte to byte string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft void *
+.Fn memset "void *b" "int c" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn memset
+function
+writes
+.Fa len
+bytes of value
+.Fa c
+(converted to an unsigned char) to the string
+.Fa b .
+.Sh RETURN VALUES
+The
+.Fn memset
+function
+returns the original value of
+.Fa b .
+.Sh SEE ALSO
+.Xr bzero 3 ,
+.Xr swab 3
+.Sh STANDARDS
+The
+.Fn memset
+function
+conforms to
+.St -ansiC .

lib/nbsd_libc/string/popcount.3

@@ -0,0 +1,70 @@
+.\"	$NetBSD: popcount.3,v 1.4 2009/07/22 07:07:27 wiz Exp $
+.\"
+.\" Copyright (c) 2009 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to The NetBSD Foundation
+.\" by Joerg Sonnenberger.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+.\" PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd July 13, 2009
+.Dt POPCOUNT 3
+.Os
+.Sh NAME
+.Nm popcount ,
+.Nm popcountl ,
+.Nm popcountll ,
+.Nm popcount32 ,
+.Nm popcount64
+.Nd count number of bits set in a bit string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In strings.h
+.Ft unsigned int
+.Fn popcount "unsigned int value"
+.Ft unsigned int
+.Fn popcountl "unsigned long value"
+.Ft unsigned int
+.Fn popcountll "unsigned long long value"
+.Ft unsigned int
+.Fn popcount32 "uint32_t value"
+.Ft unsigned int
+.Fn popcount64 "uint64_t value"
+.Sh DESCRIPTION
+The
+.Nm
+functions returns the number of bits set in
+.Fa value .
+.Sh SEE ALSO
+.Xr ffs 3
+.Sh HISTORY
+The
+.Fn popcount ,
+.Fn popcountl ,
+.Fn popcountll ,
+.Fn popcount32 ,
+and
+.Fn popcount64
+functions appeared in
+.Nx 6.0 .

lib/nbsd_libc/string/rindex.3

@@ -0,0 +1,97 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek.
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)rindex.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: rindex.3,v 1.12 2010/04/29 06:54:26 jruoho Exp $
+.\"
+.Dd April 29, 2010
+.Dt RINDEX 3
+.Os
+.Sh NAME
+.Nm rindex
+.Nd locate character in string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In strings.h
+.Ft char *
+.Fn rindex "const char *s" "int c"
+.Sh DESCRIPTION
+The
+.Fn rindex
+function
+locates the last character
+matching
+.Fa c
+(converted to a
+.Em char )
+in the nul-terminated string
+.Fa s .
+.Sh RETURN VALUES
+A pointer to the character is returned if it is found; otherwise
+.Dv NULL
+is returned.
+If
+.Fa c
+is
+.Ql \e0 ,
+.Fn rindex
+locates the terminating
+.Ql \e0 .
+.Sh SEE ALSO
+.Xr index 3 ,
+.Xr memchr 3 ,
+.Xr strchr 3 ,
+.Xr strcspn 3 ,
+.Xr strpbrk 3 ,
+.Xr strrchr 3 ,
+.Xr strsep 3 ,
+.Xr strspn 3 ,
+.Xr strstr 3 ,
+.Xr strtok 3
+.Sh STANDARDS
+The
+.Fn rindex
+function conforms to
+.St -p1003.1-2001 .
+The
+.St -p1003.1-2004
+revision marked it as legacy and recommended the use of
+.Xr strrchr 3
+instead.
+The
+.St -p1003.1-2008
+revision removed
+.Fn rindex
+from the specification.
+.Sh HISTORY
+A
+.Fn rindex
+function appeared in
+.At v6 .

lib/nbsd_libc/string/rindex.c

@@ -0,0 +1,3 @@
+/*	$NetBSD: rindex.c,v 1.15 2005/12/20 19:31:50 christos Exp $	*/
+#define RINDEX
+#include "strrchr.c"

lib/nbsd_libc/string/stpcpy.c

@@ -0,0 +1,52 @@
+/*	$NetBSD: stpcpy.c,v 1.1 2009/05/01 17:27:01 perry Exp $	*/
+
+/*
+ * Copyright (c) 1999
+ *	David E. O'Brien
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char sccsid[] = "@(#)strcpy.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: stpcpy.c,v 1.1 2009/05/01 17:27:01 perry Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+/* FreeBSD: src/lib/libc/string/stpcpy.c,v 1.2 2009/02/28 06:05:37 das Exp */
+
+#include <string.h>
+
+char *
+stpcpy(char * __restrict to, const char * __restrict from)
+{
+
+	for (; (*to = *from); ++from, ++to);
+	return(to);
+}

lib/nbsd_libc/string/stpncpy.c

@@ -0,0 +1,50 @@
+/*	$NetBSD: stpncpy.c,v 1.1 2009/05/01 17:27:01 perry Exp $	*/
+
+/*-
+ * Copyright (c) 2009 David Schultz <das@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: stpncpy.c,v 1.1 2009/05/01 17:27:01 perry Exp $");
+#endif /* LIBC_SCCS and not lint */
+/* FreeBSD: src/lib/libc/string/stpncpy.c,v 1.1 2009/02/28 06:00:58 das Exp */
+
+#include <string.h>
+
+char *
+stpncpy(char * __restrict dst, const char * __restrict src, size_t n)
+{
+
+	for (; n--; dst++, src++) {
+		if (!(*dst = *src)) {
+			char *ret = dst;
+			while (n--)
+				*++dst = '\0';
+			return (ret);
+		}
+	}
+	return (dst);
+}

lib/nbsd_libc/string/strcasecmp.3

@@ -0,0 +1,93 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek.
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)strcasecmp.3	8.1 (Berkeley) 6/9/93
+.\"	$NetBSD: strcasecmp.3,v 1.17 2006/10/16 08:48:45 wiz Exp $
+.\"
+.Dd June 9, 1993
+.Dt STRCASECMP 3
+.Os
+.Sh NAME
+.Nm strcasecmp ,
+.Nm strncasecmp
+.Nd compare strings, ignoring case
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In strings.h
+.Ft int
+.Fn strcasecmp "const char *s1" "const char *s2"
+.Ft int
+.Fn strncasecmp "const char *s1" "const char *s2" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn strcasecmp
+and
+.Fn strncasecmp
+functions
+compare the nul-terminated strings
+.Fa s1
+and
+.Fa s2
+and return an integer greater than, equal to, or less than 0,
+according to whether
+.Fa s1
+is lexicographically greater than, equal to, or less than
+.Fa s2
+after translation of each corresponding character to lower-case.
+The strings themselves are not modified.
+The comparison is done using unsigned characters, so that
+.Sq Li \e200
+is greater than
+.Ql \e0 .
+.Pp
+The
+.Fn strncasecmp
+compares at most
+.Fa len
+characters.
+.Sh SEE ALSO
+.Xr bcmp 3 ,
+.Xr memcmp 3 ,
+.Xr strcmp 3 ,
+.Xr strcoll 3 ,
+.Xr strxfrm 3
+.Sh HISTORY
+The
+.Fn strcasecmp
+and
+.Fn strncasecmp
+functions first appeared in
+.Bx 4.4 .
+.Sh NOTES
+If
+.Fa len
+is zero
+.Fn strncasecmp
+returns always 0.

lib/nbsd_libc/string/strcasestr.c

@@ -0,0 +1,69 @@
+/*	$NetBSD: strcasestr.c,v 1.3 2005/11/29 03:12:00 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: strcasestr.c,v 1.3 2005/11/29 03:12:00 christos Exp $");
+#endif /* LIBC_SCCS and not lint */
+
+#include "namespace.h"
+#include <assert.h>
+#include <ctype.h>
+#include <string.h>
+
+/*
+ * Find the first occurrence of find in s, ignore case.
+ */
+char *
+strcasestr(const char *s, const char *find)
+{
+	char c, sc;
+	size_t len;
+
+	_DIAGASSERT(s != NULL);
+	_DIAGASSERT(find != NULL);
+
+	if ((c = *find++) != 0) {
+		c = tolower((unsigned char)c);
+		len = strlen(find);
+		do {
+			do {
+				if ((sc = *s++) == 0)
+					return (NULL);
+			} while ((char)tolower((unsigned char)sc) != c);
+		} while (strncasecmp(s, find, len) != 0);
+		s--;
+	}
+	return __UNCONST(s);
+}

lib/nbsd_libc/string/strcat.3

@@ -0,0 +1,138 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)strcat.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: strcat.3,v 1.16 2006/10/16 08:48:45 wiz Exp $
+.\"
+.Dd August 11, 2002
+.Dt STRCAT 3
+.Os
+.Sh NAME
+.Nm strcat ,
+.Nm strncat
+.Nd concatenate strings
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strcat "char * restrict s" "const char * restrict append"
+.Ft char *
+.Fn strncat "char * restrict s" "const char * restrict append" "size_t count"
+.Sh DESCRIPTION
+The
+.Fn strcat
+and
+.Fn strncat
+functions
+append a copy of the nul-terminated string
+.Fa append
+to the end of the nul-terminated string
+.Fa s ,
+then add a terminating
+.Ql \e0 .
+The string
+.Fa s
+must have sufficient space to hold the result.
+.Pp
+The
+.Fn strncat
+function
+appends not more than
+.Fa count
+characters where space for the terminating
+.Ql \e0
+should not be included in
+.Fa count .
+.Sh RETURN VALUES
+The
+.Fn strcat
+and
+.Fn strncat
+functions
+return the pointer
+.Fa s .
+.Sh EXAMPLES
+The following appends
+.Dq Li abc
+to
+.Dq Li chararray :
+.Bd -literal -offset indent
+char *letters = "abcdefghi";
+
+(void)strncat(chararray, letters, 3);
+.Ed
+.Pp
+The following example shows how to use
+.Fn strncat
+safely in conjunction with
+.Xr strncpy 3 .
+.Bd -literal -offset indent
+char buf[BUFSIZ];
+char *input, *suffix;
+
+(void)strncpy(buf, input, sizeof(buf) - 1);
+buf[sizeof(buf) - 1] = '\e0';
+(void)strncat(buf, suffix, sizeof(buf) - 1 - strlen(buf));
+.Ed
+.Pp
+The above will copy as many characters from
+.Dq Li input
+to
+.Dq Li buf
+as will fit.
+It then appends as many characters from suffix as will fit (or none
+if there is no space).
+For operations like this, the
+.Xr strlcpy 3
+and
+.Xr strlcat 3
+functions are a better choice, as shown below.
+.Bd -literal -offset indent
+(void)strlcpy(buf, input, sizeof(buf));
+(void)strlcat(buf, suffix, sizeof(buf));
+.Ed
+.Sh SEE ALSO
+.Xr bcopy 3 ,
+.Xr memccpy 3 ,
+.Xr memcpy 3 ,
+.Xr memmove 3 ,
+.Xr strcpy 3 ,
+.Xr strlcat 3 ,
+.Xr strlcpy 3
+.Sh STANDARDS
+The
+.Fn strcat
+and
+.Fn strncat
+functions
+conform to
+.St -isoC-99 .

lib/nbsd_libc/string/strchr.3

@@ -0,0 +1,98 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)strchr.3	8.2 (Berkeley) 4/19/94
+.\"	$NetBSD: strchr.3,v 1.11 2003/08/07 16:43:49 agc Exp $
+.\"
+.Dd August 11, 2002
+.Dt STRCHR 3
+.Os
+.Sh NAME
+.Nm strchr
+.Nd locate character in string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strchr "const char *s" "int c"
+.Sh DESCRIPTION
+The
+.Fn strchr
+function locates the first occurrence of
+.Ar c
+in the string pointed to by
+.Ar s .
+The terminating
+.Dv NUL
+character is considered part of the string.
+If
+.Fa c
+is
+.Ql \e0 ,
+.Fn strchr
+locates the terminating
+.Ql \e0 .
+.Sh RETURN VALUES
+The function
+.Fn strchr
+returns a pointer to the located character, or
+.Dv NULL
+if the character does not appear in the string.
+.Sh EXAMPLES
+After the following call to
+.Fn strchr ,
+.Va p
+will point to the string
+.Qq oobar :
+.Bd -literal -offset indent
+char *p;
+char *s = "foobar";
+
+p = strchr(s, 'o');
+.Ed
+.Sh SEE ALSO
+.Xr index 3 ,
+.Xr memchr 3 ,
+.Xr rindex 3 ,
+.Xr strcspn 3 ,
+.Xr strpbrk 3 ,
+.Xr strrchr 3 ,
+.Xr strsep 3 ,
+.Xr strspn 3 ,
+.Xr strstr 3 ,
+.Xr strtok 3
+.Sh STANDARDS
+The
+.Fn strchr
+function
+conforms to
+.St -ansiC .

lib/nbsd_libc/string/strcmp.3

@@ -0,0 +1,99 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)strcmp.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: strcmp.3,v 1.13 2006/10/16 08:48:45 wiz Exp $
+.\"
+.Dd June 4, 1993
+.Dt STRCMP 3
+.Os
+.Sh NAME
+.Nm strcmp ,
+.Nm strncmp
+.Nd compare strings
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft int
+.Fn strcmp "const char *s1" "const char *s2"
+.Ft int
+.Fn strncmp "const char *s1" "const char *s2" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn strcmp
+and
+.Fn strncmp
+functions
+lexicographically compare the nul-terminated strings
+.Fa s1
+and
+.Fa s2 .
+.Sh RETURN VALUES
+The
+.Fn strcmp
+and
+.Fn strncmp
+return an integer greater than, equal to, or less than 0, according
+to whether the string
+.Fa s1
+is greater than, equal to, or less than the string
+.Fa s2 .
+The comparison is done using unsigned characters, so that
+.Ql \e200
+is greater than
+.Ql \e0 .
+.Pp
+The
+.Fn strncmp
+compares not more than
+.Fa len
+characters.
+.Sh SEE ALSO
+.Xr bcmp 3 ,
+.Xr memcmp 3 ,
+.Xr strcasecmp 3 ,
+.Xr strcoll 3 ,
+.Xr strxfrm 3
+.Sh STANDARDS
+The
+.Fn strcmp
+and
+.Fn strncmp
+functions
+conform to
+.St -ansiC .
+.Sh NOTES
+If
+.Fa len
+is zero
+.Fn strncmp
+returns always 0.

lib/nbsd_libc/string/strcoll.3

@@ -0,0 +1,73 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)strcoll.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: strcoll.3,v 1.10 2006/10/16 08:48:45 wiz Exp $
+.\"
+.Dd June 4, 1993
+.Dt STRCOLL 3
+.Os
+.Sh NAME
+.Nm strcoll
+.Nd compare strings according to current collation
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft int
+.Fn strcoll "const char *s1" "const char *s2"
+.Sh DESCRIPTION
+The
+.Fn strcoll
+function
+lexicographically compares the nul-terminated strings
+.Fa s1
+and
+.Fa s2
+according to the current locale collation
+and returns an integer greater than, equal to, or less than 0,
+according to whether
+.Fa s1
+is greater than, equal to, or less than
+.Fa s2 .
+.Sh SEE ALSO
+.Xr bcmp 3 ,
+.Xr memcmp 3 ,
+.Xr setlocale 3 ,
+.Xr strcasecmp 3 ,
+.Xr strcmp 3 ,
+.Xr strxfrm 3
+.Sh STANDARDS
+The
+.Fn strcoll
+function
+conforms to
+.St -ansiC .

lib/nbsd_libc/string/strcoll.c

@@ -0,0 +1,60 @@
+/*	$NetBSD: strcoll.c,v 1.9 2003/08/07 16:43:50 agc Exp $	*/
+
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char sccsid[] = "@(#)strcoll.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: strcoll.c,v 1.9 2003/08/07 16:43:50 agc Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include <assert.h>
+#include <string.h>
+
+/*
+ * Compare strings according to LC_COLLATE category of current locale.
+ */
+int
+strcoll(s1, s2)
+	const char *s1, *s2;
+{
+
+	_DIAGASSERT(s1 != NULL);
+	_DIAGASSERT(s2 != NULL);
+
+	/* LC_COLLATE is unimplemented, hence always "C" */
+	return (strcmp(s1, s2));
+}

lib/nbsd_libc/string/strcpy.3

@@ -0,0 +1,220 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)strcpy.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: strcpy.3,v 1.20 2009/05/02 09:37:32 wiz Exp $
+.\"
+.Dd May 1, 2009
+.Dt STRCPY 3
+.Os
+.Sh NAME
+.Nm stpcpy ,
+.Nm stpncpy ,
+.Nm strcpy ,
+.Nm strncpy
+.Nd copy strings
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn stpcpy "char * restrict dst" "const char * restrict src"
+.Ft char *
+.Fn stpncpy "char * restrict dst" "const char * restrict src" "size_t len"
+.Ft char *
+.Fn strcpy "char * restrict dst" "const char * restrict src"
+.Ft char *
+.Fn strncpy "char * restrict dst" "const char * restrict src" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn stpcpy
+and
+.Fn strcpy
+functions
+copy the string
+.Fa src
+to
+.Fa dst
+(including the terminating
+.Ql \e0
+character).
+.Pp
+The
+.Fn stpncpy
+and
+.Fn strncpy
+functions copy at most
+.Fa len
+characters from
+.Fa src
+into
+.Fa dst .
+If
+.Fa src
+is less than
+.Fa len
+characters long,
+the remainder of
+.Fa dst
+is filled with
+.Ql \e0
+characters.
+Otherwise,
+.Fa dst
+is
+.Em not
+terminated.
+.Sh RETURN VALUES
+The
+.Fn strcpy
+and
+.Fn strncpy
+functions
+return
+.Fa dst .
+The
+.Fn stpcpy
+and
+.Fn stpncpy
+functions return a pointer to the terminating
+.Ql \e0
+character of
+.Fa dst .
+If
+.Fn stpncpy
+does not terminate
+.Fa dst
+with a
+.Dv NUL
+character, it instead returns a pointer to
+.Li dst[len]
+(which does not necessarily refer to a valid memory location.)
+.Sh EXAMPLES
+The following sets
+.Va chararray
+to
+.Dq Li abc\e0\e0\e0 :
+.Bd -literal -offset indent
+char chararray[6];
+
+(void)strncpy(chararray, "abc", sizeof(chararray));
+.Ed
+.Pp
+The following sets
+.Va chararray
+to
+.Dq Li abcdef :
+.Bd -literal -offset indent
+char chararray[6];
+
+(void)strncpy(chararray, "abcdefgh", sizeof(chararray));
+.Ed
+.Pp
+Note that it does
+.Em not
+.Dv NUL Ns No -terminate
+.Va chararray
+because the length of the source string is greater than or equal
+to the length parameter.
+.Fn strncpy
+.Em only
+.Dv NUL Ns No -terminates
+the destination string when the length of the source
+string is less than the length parameter.
+.Pp
+The following copies as many characters from
+.Va input
+to
+.Va buf
+as will fit and
+.Dv NUL Ns No -terminates
+the result.
+Because
+.Fn strncpy
+does
+.Em not
+guarantee to
+.Dv NUL Ns No -terminate
+the string itself, this must be done explicitly.
+.Bd -literal -offset indent
+char buf[1024];
+
+(void)strncpy(buf, input, sizeof(buf) - 1);
+buf[sizeof(buf) - 1] = '\e0';
+.Ed
+.Pp
+This could be better and more simply achieved using
+.Xr strlcpy 3 ,
+as shown in the following example:
+.Bd -literal -offset indent
+(void)strlcpy(buf, input, sizeof(buf));
+.Ed
+.Pp
+Note that because
+.Xr strlcpy 3
+is not defined in any standards, it should
+only be used when portability is not a concern.
+.Sh SEE ALSO
+.Xr bcopy 3 ,
+.Xr memccpy 3 ,
+.Xr memcpy 3 ,
+.Xr memmove 3 ,
+.Xr strlcpy 3 ,
+.Xr wcscpy 3
+.Sh STANDARDS
+The
+.Fn strcpy
+and
+.Fn strncpy
+functions
+conform to
+.St -isoC-99 .
+The
+.Fn stpcpy
+and
+.Fn stpncpy
+functions conform to
+.St -p1003.1-2008 .
+.Sh HISTORY
+The
+.Fn stpcpy
+and
+.Fn stpncpy
+functions first appeared in
+.Nx 6.0 .
+.Sh SECURITY CONSIDERATIONS
+The
+.Fn strcpy
+and
+.Fn stpcpy
+functions are easily misused in a manner which enables malicious users
+to arbitrarily change a running program's functionality through a
+buffer overflow attack.

lib/nbsd_libc/string/strcspn.3

@@ -0,0 +1,97 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)strcspn.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: strcspn.3,v 1.10 2006/10/16 08:48:45 wiz Exp $
+.\"
+.Dd August 11, 2002
+.Dt STRCSPN 3
+.Os
+.Sh NAME
+.Nm strcspn
+.Nd span the complement of a string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft size_t
+.Fn strcspn "const char *s" "const char *charset"
+.Sh DESCRIPTION
+The
+.Fn strcspn
+function
+spans the initial part of the nul-terminated string
+.Fa s
+as long as the characters from
+.Fa s
+do not occur in string
+.Fa charset
+(it
+spans the
+.Em complement
+of
+.Fa charset ) .
+.Sh RETURN VALUES
+The
+.Fn strcspn
+function
+returns the number of characters spanned.
+.Sh EXAMPLES
+The following call to
+.Fn strcspn
+will return 3, since the first three characters of string
+.Fa s
+do not occur in string
+.Fa charset :
+.Bd -literal -offset indent
+char *s = "foobar";
+char *charset = "bar";
+size_t span;
+
+span = strcspn(s, charset);
+.Ed
+.Sh SEE ALSO
+.Xr index 3 ,
+.Xr memchr 3 ,
+.Xr rindex 3 ,
+.Xr strchr 3 ,
+.Xr strpbrk 3 ,
+.Xr strrchr 3 ,
+.Xr strsep 3 ,
+.Xr strspn 3 ,
+.Xr strstr 3 ,
+.Xr strtok 3
+.Sh STANDARDS
+The
+.Fn strcspn
+function
+conforms to
+.St -ansiC .

lib/nbsd_libc/string/strcspn.c

@@ -0,0 +1,70 @@
+/*	$NetBSD: strcspn.c,v 1.17 2009/07/30 21:42:06 dsl Exp $	*/
+
+/*-
+ * Copyright (c) 2008 Joerg Sonnenberger
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: strcspn.c,v 1.17 2009/07/30 21:42:06 dsl Exp $");
+
+#include <assert.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <string.h>
+
+/* 64bit version is in strspn.c */
+#if ULONG_MAX != 0xffffffffffffffffull
+
+size_t
+strcspn(const char *s, const char *charset)
+{
+	static const size_t idx[8] = { 1, 2, 4, 8, 16, 32, 64, 128 };
+	const char *t;
+	uint8_t set[32];
+#define UC(a) ((unsigned int)(unsigned char)(a))
+
+	_DIAGASSERT(s != NULL);
+	_DIAGASSERT(charset != NULL);
+
+	if (charset[0] == '\0')
+		return strlen(s);
+	if (charset[1] == '\0') {
+		for (t = s; *t != '\0'; ++t)
+			if (*t == *charset)
+				break;
+		return t - s;
+	}
+
+	(void)memset(set, 0, sizeof(set));
+
+	for (; *charset != '\0'; ++charset)
+		set[UC(*charset) >> 3] |= idx[UC(*charset) & 7];
+
+	for (t = s; *t != '\0'; ++t)
+		if (set[UC(*t) >> 3] & idx[UC(*t) & 7])
+			break;
+	return t - s;
+}
+
+#endif

lib/nbsd_libc/string/strdup.3

@@ -0,0 +1,109 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)strdup.3	8.1 (Berkeley) 6/9/93
+.\"	$NetBSD: strdup.3,v 1.18 2009/01/29 10:15:39 wiz Exp $
+.\"
+.Dd January 28, 2009
+.Dt STRDUP 3
+.Os
+.Sh NAME
+.Nm strdup ,
+.Nm strndup
+.Nd save a copy of a string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strdup "const char *str"
+.Ft char *
+.Fn strndup "const char *str" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn strdup
+function
+allocates sufficient memory for a copy
+of the string
+.Fa str ,
+does the copy, and returns a pointer to it.
+The pointer may subsequently be used as an
+argument to the function
+.Xr free 3 .
+.Pp
+If insufficient memory is available,
+.Dv NULL
+is returned.
+.Pp
+The
+.Fn strndup
+function copies at most
+.Fa len
+characters from the string
+.Fa str
+always
+.Dv NUL
+terminating the copied string.
+.Sh EXAMPLES
+The following will point
+.Va p
+to an allocated area of memory containing the nul-terminated string
+.Qq foobar :
+.Bd -literal -offset indent
+char *p;
+
+if ((p = strdup("foobar")) == NULL) {
+	fprintf(stderr, "Out of memory.\en");
+	exit(1);
+}
+.Ed
+.Sh ERRORS
+The
+.Fn strdup
+function may fail and set the external variable
+.Va errno
+for any of the errors specified for the library function
+.Xr malloc 3 .
+.Sh SEE ALSO
+.Xr free 3 ,
+.Xr malloc 3 ,
+.Xr strcpy 3 ,
+.Xr strlen 3
+.Sh STANDARDS
+The
+.Fn strdup
+function conforms to
+.St -p1003.1-2001 .
+.Sh HISTORY
+The
+.Fn strdup
+function first appeared in
+.Bx 4.4 .
+The
+.Fn strndup
+function was added in
+.Nx 4.0 .

lib/nbsd_libc/string/strdup.c

@@ -0,0 +1,66 @@
+/*	$NetBSD: strdup.c,v 1.13 2003/08/07 16:43:50 agc Exp $	*/
+
+/*
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char sccsid[] = "@(#)strdup.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: strdup.c,v 1.13 2003/08/07 16:43:50 agc Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include "namespace.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef __weak_alias
+__weak_alias(strdup,_strdup)
+#endif
+
+char *
+strdup(str)
+	const char *str;
+{
+	size_t len;
+	char *copy;
+
+	_DIAGASSERT(str != NULL);
+
+	len = strlen(str) + 1;
+	if (!(copy = malloc(len)))
+		return (NULL);
+	memcpy(copy, str, len);
+	return (copy);
+}

lib/nbsd_libc/string/strerror.3

@@ -0,0 +1,197 @@
+.\" $NetBSD: strerror.3,v 1.17 2010/10/25 07:37:11 wiz Exp $
+.\"
+.\" Copyright (c) 1980, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)strerror.3	8.1 (Berkeley) 6/9/93
+.Dd October 24, 2010
+.Dt STRERROR 3
+.Os
+.Sh NAME
+.Nm perror ,
+.Nm strerror ,
+.Nm strerror_r ,
+.Nm sys_errlist ,
+.Nm sys_nerr
+.Nd system error messages
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In stdio.h
+.Ft void
+.Fn perror "const char *string"
+.In errno.h
+.Vt extern const char * const sys_errlist[] ;
+.Vt extern const int sys_nerr ;
+.In string.h
+.Ft "char *"
+.Fn strerror "int errnum"
+.Ft int
+.Fn strerror_r "int errnum" "char *strerrbuf" "size_t buflen"
+.Sh DESCRIPTION
+The
+.Fn strerror ,
+.Fn strerror_r ,
+and
+.Fn perror
+functions look up the language-dependent error message
+string corresponding to an error number.
+.Pp
+The
+.Fn strerror
+function accepts an error number argument
+.Fa errnum
+and returns a pointer to the corresponding
+message string.
+.Pp
+The
+.Fn strerror_r
+function renders the same result into
+.Fa strerrbuf
+for a maximum of
+.Fa buflen
+characters and returns 0 upon success.
+.Pp
+The
+.Fn perror
+function finds the error message corresponding to the current
+value of the global variable
+.Va errno
+.Pq Xr intro 2
+and writes it, followed by a newline, to the
+standard error file descriptor.
+If the argument
+.Fa string
+is
+.Pf non- Dv NULL
+and does not point to the nul character,
+this string is prepended to the message
+string and separated from it by
+a colon and space
+.Pq Dq Li ":\ " ;
+otherwise, only the error message string is printed.
+Note that in most cases the
+.Xr err 3
+and
+.Xr warn 3
+family of functions is preferable to
+.Fn perror ;
+they are more flexible and also print the program name.
+.Pp
+If the error number is not recognized, these functions pass an error message
+string containing
+.Dq Li "Unknown error:\ "
+followed by the error number in decimal.
+To warn about this,
+.Fn strerror
+sets
+.Dv errno
+to
+.Er EINVAL ,
+and
+.Fn strerror_r
+returns
+.Er EINVAL .
+Error numbers recognized by this implementation fall in
+the range 0 \*[Lt]
+.Fa errnum
+\*[Lt]
+.Fa sys_nerr .
+.Pp
+If insufficient storage is provided in
+.Fa strerrbuf
+(as specified in
+.Fa buflen )
+to contain the error string,
+.Fn strerror_r
+returns
+.Er ERANGE
+and
+.Fa strerrbuf
+will contain an error message that has been truncated and
+.Dv NUL
+terminated to fit the length specified by
+.Fa buflen .
+.Pp
+The message strings can be accessed directly using the external
+array
+.Va sys_errlist .
+The external value
+.Va sys_nerr
+contains a count of the messages in
+.Va sys_errlist .
+The use of these variables is deprecated;
+.Fn strerror
+or
+.Fn strerror_r
+should be used instead.
+.Sh SEE ALSO
+.Xr intro 2 ,
+.Xr err 3 ,
+.Xr psignal 3 ,
+.Xr warn 3
+.Sh STANDARDS
+The
+.Fn perror
+and
+.Fn strerror
+functions conform to
+.St -isoC-99 .
+The
+.Fn strerror_r
+function conforms to
+.St -p1003.1-2001 .
+.Sh HISTORY
+The
+.Fn strerror
+and
+.Fn perror
+functions first appeared in
+.Bx 4.4 .
+The
+.Fn strerror_r
+function first appeared in
+.Nx 4.0 .
+.Sh BUGS
+For unknown error numbers, the
+.Fn strerror
+function will return its result in a static buffer which
+may be overwritten by subsequent calls.
+.Pp
+The return type for
+.Fn strerror
+is missing a type-qualifier; it should actually be
+.Vt const char * .
+.Pp
+Programs that use the deprecated
+.Va sys_errlist
+variable often fail to compile because they declare it
+inconsistently.

lib/nbsd_libc/string/strerror.c

@@ -0,0 +1,60 @@
+/*	$NetBSD: strerror.c,v 1.14 2006/01/26 11:13:42 kleink Exp $	*/
+
+/*
+ * Copyright (c) 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char *sccsid = "@(#)strerror.c	5.6 (Berkeley) 5/4/91";
+#else
+__RCSID("$NetBSD: strerror.c,v 1.14 2006/01/26 11:13:42 kleink Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include "namespace.h"
+#include <string.h>
+#include <limits.h>
+#include <errno.h>
+#include "extern.h"
+
+/*
+ * Since perror() is not allowed to change the contents of strerror()'s
+ * static buffer, both functions supply their own buffers to strerror_r()
+ */
+
+__aconst char *
+strerror(int num)
+{
+	static char buf[NL_TEXTMAX];
+	int error = strerror_r(num, buf, sizeof(buf));
+	if (error)
+		errno = error;
+	return buf;
+}

lib/nbsd_libc/string/strerror_r.c

@@ -0,0 +1,103 @@
+/*	$NetBSD: strerror_r.c,v 1.2 2005/07/30 15:21:21 christos Exp $	*/
+
+/*
+ * Copyright (c) 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char *sccsid = "@(#)strerror.c	5.6 (Berkeley) 5/4/91";
+#else
+__RCSID("$NetBSD: strerror_r.c,v 1.2 2005/07/30 15:21:21 christos Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include "namespace.h"
+#ifdef NLS
+#include <limits.h>
+#include <nl_types.h>
+#endif
+
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include "extern.h"
+
+#ifdef _LIBC
+# ifdef __weak_alias
+__weak_alias(strerror_r, _strerror_r)
+# endif
+#endif
+
+int
+#ifdef _LIBC
+_strerror_r(int num, char *buf, size_t buflen)
+#else
+strerror_r(int num, char *buf, size_t buflen)
+#endif
+{
+#define	UPREFIX	"Unknown error: %u"
+	unsigned int errnum = num;
+	int retval = 0;
+	size_t slen;
+#ifdef NLS
+	int saved_errno = errno;
+	nl_catd catd;
+	catd = catopen("libc", NL_CAT_LOCALE);
+#endif
+	_DIAGASSERT(buf != NULL);
+
+	if (errnum < (unsigned int) sys_nerr) {
+#ifdef NLS
+		slen = strlcpy(buf, catgets(catd, 1, (int)errnum,
+		    sys_errlist[errnum]), buflen); 
+#else
+		slen = strlcpy(buf, sys_errlist[errnum], buflen); 
+#endif
+	} else {
+#ifdef NLS
+		slen = snprintf(buf, buflen, 
+		    catgets(catd, 1, 0xffff, UPREFIX), errnum);
+#else
+		slen = snprintf(buf, buflen, UPREFIX, errnum);
+#endif
+		retval = EINVAL;
+	}
+
+	if (slen >= buflen)
+		retval = ERANGE;
+
+#ifdef NLS
+	catclose(catd);
+	errno = saved_errno;
+#endif
+
+	return retval;
+}

lib/nbsd_libc/string/stresep.c

@@ -0,0 +1,94 @@
+/*	$NetBSD: stresep.c,v 1.2 2007/12/06 22:07:07 seb Exp $	*/
+
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char sccsid[] = "@(#)strsep.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: stresep.c,v 1.2 2007/12/06 22:07:07 seb Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include "namespace.h"
+
+#include <assert.h>
+#include <string.h>
+
+#ifdef __weak_alias
+__weak_alias(stresep,_stresep)
+#endif
+
+/*
+ * Get next token from string *stringp, where tokens are possibly-empty
+ * strings separated by characters from delim. If esc is not NUL, then
+ * the characters followed by esc are ignored and are not taken into account
+ * when splitting the string.
+ *
+ * Writes NULs into the string at *stringp to end tokens.
+ * delim need not remain constant from call to call.
+ * On return, *stringp points past the last NUL written (if there might
+ * be further tokens), or is NULL (if there are definitely no more tokens).
+ *
+ * If *stringp is NULL, stresep returns NULL.
+ */
+char *
+stresep(char **stringp, const char *delim, int esc)
+{
+	char *s;
+	const char *spanp;
+	int c, sc;
+	char *tok;
+
+	_DIAGASSERT(stringp != NULL);
+	_DIAGASSERT(delim != NULL);
+
+	if ((s = *stringp) == NULL)
+		return NULL;
+	for (tok = s;;) {
+		c = *s++;
+		while (esc != '\0' && c == esc) {
+			(void)strcpy(s - 1, s);
+			c = *s++;
+		}
+		spanp = delim;
+		do {
+			if ((sc = *spanp++) == c) {
+				if (c == 0)
+					s = NULL;
+				else
+					s[-1] = 0;
+				*stringp = s;
+				return tok;
+			}
+		} while (sc != 0);
+	}
+}

lib/nbsd_libc/string/string.3

@@ -0,0 +1,200 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek.
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)string.3	8.2 (Berkeley) 12/11/93
+.\"	$NetBSD: string.3,v 1.16 2009/05/01 17:27:01 perry Exp $
+.\"
+.Dd May 1, 2009
+.Dt STRING 3
+.Os
+.Sh NAME
+.Nm stpcpy ,
+.Nm stpncpy ,
+.Nm strcat ,
+.Nm strlcat ,
+.Nm strncat ,
+.Nm strchr ,
+.Nm strrchr ,
+.Nm strcmp ,
+.Nm strncmp ,
+.Nm strcasecmp ,
+.Nm strncasecmp ,
+.Nm strcoll ,
+.Nm strcpy ,
+.Nm strlcpy ,
+.Nm strncpy ,
+.Nm strerror ,
+.Nm strerror_r ,
+.Nm strlen ,
+.Nm strnlen ,
+.Nm strpbrk ,
+.Nm strsep ,
+.Nm stresep ,
+.Nm strspn ,
+.Nm strcspn ,
+.Nm strdup ,
+.Nm strndup ,
+.Nm strstr ,
+.Nm strcasestr ,
+.Nm strtok ,
+.Nm strtok_r ,
+.Nm strxfrm
+.Nd string specific functions
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn stpcpy "char *dst" "const char *src"
+.Ft char *
+.Fn stpncpy "char *dst" "const char *src" "size_t count"
+.Ft char *
+.Fn strcat "char *s" "const char * append"
+.Ft size_t
+.Fn strlcat "char *dst" "const char *src" "size_t size"
+.Ft char *
+.Fn strncat "char *s" "const char *append" "size_t count"
+.Ft char *
+.Fn strchr "const char *s" "int c"
+.Ft char *
+.Fn strrchr "const char *s" "int c"
+.Ft int
+.Fn strcmp "const char *s1" "const char *s2"
+.Ft int
+.Fn strncmp "const char *s1" "const char *s2" "size_t count"
+.Ft int
+.Fn strcasecmp "const char *s1" "const char *s2"
+.Ft int
+.Fn strncasecmp "const char *s1" "const char *s2" "size_t count"
+.Ft int
+.Fn strcoll "const char *s1" "const char *s2"
+.Ft char *
+.Fn strcpy "char *dst" "const char *src"
+.Ft size_t
+.Fn strlcpy "char *dst" "const char *src" "size_t size"
+.Ft char *
+.Fn strncpy "char *dst" "const char *src" "size_t count"
+.Ft char *
+.Fn strerror "int errno"
+.Ft int
+.Fn strerror_r "int errnum" "char *strerrbuf" "size_t buflen"
+.Ft size_t
+.Fn strlen "const char *s"
+.Ft size_t
+.Fn strnlen "const char *s" "size_t count"
+.Ft char *
+.Fn strpbrk "const char *s" "const char *charset"
+.Ft char *
+.Fn strsep "char **stringp" "const char *delim"
+.Ft char *
+.Fn stresep "char **stringp" "const char *delim" "int escape"
+.Ft size_t
+.Fn strspn "const char *s" "const char *charset"
+.Ft size_t
+.Fn strcspn "const char *s" "const char *charset"
+.Ft char *
+.Fn strdup "const char *str"
+.Ft char *
+.Fn strndup "const char *str" "size_t len"
+.Ft char *
+.Fn strstr "const char *big" "const char *little"
+.Ft char *
+.Fn strcasestr "const char *big" "const char *little"
+.Ft char *
+.Fn strtok "char *s" "const char *delim"
+.Ft char *
+.Fn strtok_r "char *s" "const char *delim" "char **lasts"
+.Ft size_t
+.Fn strxfrm "char *dst" "const char *src" "size_t n"
+.Sh DESCRIPTION
+The string
+functions manipulate strings terminated by a
+nul byte.
+.Pp
+See the specific manual pages for more information.
+For manipulating variable length generic objects as byte
+strings (without the nul byte check), see
+.Xr bstring 3 .
+.Pp
+Except as noted in their specific manual pages,
+the string functions do not test the destination
+for size limitations.
+.Sh SEE ALSO
+.Xr bstring 3 ,
+.Xr strcat 3 ,
+.Xr strchr 3 ,
+.Xr strcmp 3 ,
+.Xr strcoll 3 ,
+.Xr strcpy 3 ,
+.Xr strcspn 3 ,
+.Xr strdup 3 ,
+.Xr strerror 3 ,
+.Xr strings 3 ,
+.Xr strlcat 3 ,
+.Xr strlen 3 ,
+.Xr strpbrk 3 ,
+.Xr strrchr 3 ,
+.Xr strsep 3 ,
+.Xr strspn 3 ,
+.Xr strstr 3 ,
+.Xr strtok 3 ,
+.Xr strxfrm 3
+.Sh STANDARDS
+The
+.Fn strcat ,
+.Fn strncat ,
+.Fn strchr ,
+.Fn strrchr ,
+.Fn strcmp ,
+.Fn strncmp ,
+.Fn strcpy ,
+.Fn strncpy ,
+.Fn strcoll ,
+.Fn strerror ,
+.Fn strlen ,
+.Fn strpbrk ,
+.Fn strsep ,
+.Fn strspn ,
+.Fn strcspn ,
+.Fn strstr ,
+.Fn strtok ,
+and
+.Fn strxfrm
+functions conform to
+.St -ansiC .
+.Pp
+The
+.Fn strtok_r
+function conforms to
+.St -p1003.1c-95 .
+.Pp
+The
+.Fn strerror_r
+function conform to
+.St -p1003.1-2001 .

lib/nbsd_libc/string/strings.3

@@ -0,0 +1,98 @@
+.\" $NetBSD: strings.3,v 1.1 2007/02/17 09:32:58 wiz Exp $
+.\"
+.\" Copyright (c) 2007 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to The NetBSD Foundation
+.\" by Thomas Klausner.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+.\" PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd February 17, 2007
+.Dt STRINGS 3
+.Os
+.Sh NAME
+.Nm bcmp ,
+.Nm bcopy ,
+.Nm bzero ,
+.Nm ffs ,
+.Nm index ,
+.Nm rindex ,
+.Nm strcasecmp ,
+.Nm strncasecmp
+.Nd string operations
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In strings.h
+.Ft int
+.Fn bcmp "const void *b1" "const void *b2" "size_t len"
+.Ft void
+.Fn bcopy "const void *src" "void *dst" "size_t len"
+.Ft void
+.Fn bzero "void *b" "size_t len"
+.Ft int
+.Fn ffs "int value"
+.Ft char *
+.Fn index "const char *s" "int c"
+.Ft char *
+.Fn rindex "const char *s" "int c"
+.Ft int
+.Fn strcasecmp "const char *s1" "const char *s2"
+.Ft int
+.Fn strncasecmp "const char *s1" "const char *s2" "size_t len"
+.Sh DESCRIPTION
+These functions all live in the
+.Pa strings.h
+header file.
+Except for
+.Fn ffs ,
+they operate on strings.
+.Fn index ,
+.Fn rindex ,
+and
+.Fn strcasecmp
+need nul-terminated strings.
+.Pp
+See the specific manual pages for more information.
+.Pp
+See
+.Xr string 3
+for string functions that follow
+.St -ansiC
+or
+.St -isoC-99 ,
+.Xr bstring 3
+for functions that operate on strings that are not nul-terminated, and
+.Xr bitstring 3
+for bit-string manipulation macros.
+.Sh SEE ALSO
+.Xr bcmp 3 ,
+.Xr bcopy 3 ,
+.Xr bitstring 3 ,
+.Xr bstring 3 ,
+.Xr bzero 3 ,
+.Xr ffs 3 ,
+.Xr index 3 ,
+.Xr rindex 3 ,
+.Xr strcasecmp 3 ,
+.Xr string 3

lib/nbsd_libc/string/strlcpy.3

@@ -0,0 +1,212 @@
+.\"	$NetBSD: strlcpy.3,v 1.13 2010/04/14 13:07:51 wiz Exp $
+.\" from OpenBSD: strlcpy.3,v 1.11 2000/11/16 23:27:41 angelos Exp
+.\"
+.\" Copyright (c) 1998, 2000 Todd C. Miller <Todd.Miller@courtesan.com>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+.\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+.\" AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+.\" THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+.\" EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+.\" PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+.\" OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+.\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+.\" OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+.\" ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd March 1, 2001
+.Dt STRLCPY 3
+.Os
+.Sh NAME
+.Nm strlcpy ,
+.Nm strlcat
+.Nd size-bounded string copying and concatenation
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft size_t
+.Fn strlcpy "char *dst" "const char *src" "size_t size"
+.Ft size_t
+.Fn strlcat "char *dst" "const char *src" "size_t size"
+.Sh DESCRIPTION
+The
+.Fn strlcpy
+and
+.Fn strlcat
+functions copy and concatenate strings respectively.
+They are designed
+to be safer, more consistent, and less error prone replacements for
+.Xr strncpy 3
+and
+.Xr strncat 3 .
+Unlike those functions,
+.Fn strlcpy
+and
+.Fn strlcat
+take the full size of the buffer (not just the length) and guarantee to
+NUL-terminate the result (as long as
+.Fa size
+is larger than 0 or, in the case of
+.Fn strlcat ,
+as long as there is at least one byte free in
+.Fa dst ) .
+Note that you should include a byte for the NUL in
+.Fa size .
+Also note that
+.Fn strlcpy
+and
+.Fn strlcat
+only operate on true
+.Dq C
+strings.
+This means that for
+.Fn strlcpy
+.Fa src
+must be NUL-terminated and for
+.Fn strlcat
+both
+.Fa src
+and
+.Fa dst
+must be NUL-terminated.
+.Pp
+The
+.Fn strlcpy
+function copies up to
+.Fa size
+- 1 characters from the NUL-terminated string
+.Fa src
+to
+.Fa dst ,
+NUL-terminating the result.
+.Pp
+The
+.Fn strlcat
+function appends the NUL-terminated string
+.Fa src
+to the end of
+.Fa dst .
+It will append at most
+.Fa size
+- strlen(dst) - 1 bytes, NUL-terminating the result.
+.Sh RETURN VALUES
+The
+.Fn strlcpy
+and
+.Fn strlcat
+functions return the total length of the string they tried to create.
+For
+.Fn strlcpy
+that means the length of
+.Fa src .
+For
+.Fn strlcat
+that means the initial length of
+.Fa dst
+plus
+the length of
+.Fa src .
+While this may seem somewhat confusing it was done to make
+truncation detection simple.
+.Pp
+Note however, that if
+.Fn strlcat
+traverses
+.Fa size
+characters without finding a NUL, the length of the string is considered
+to be
+.Fa size
+and the destination string will not be NUL-terminated (since there was
+no space for the NUL).
+This keeps
+.Fn strlcat
+from running off the end of a string.
+In practice this should not happen (as it means that either
+.Fa size
+is incorrect or that
+.Fa dst
+is not a proper
+.Dq C
+string).
+The check exists to prevent potential security problems in incorrect code.
+.Sh EXAMPLES
+The following code fragment illustrates the simple case:
+.Bd -literal -offset indent
+char *s, *p, buf[BUFSIZ];
+
+\&...
+
+(void)strlcpy(buf, s, sizeof(buf));
+(void)strlcat(buf, p, sizeof(buf));
+.Ed
+.Pp
+To detect truncation, perhaps while building a pathname, something
+like the following might be used:
+.Bd -literal -offset indent
+char *dir, *file, pname[MAXPATHLEN];
+
+\&...
+
+if (strlcpy(pname, dir, sizeof(pname)) \*[Ge] sizeof(pname))
+	goto toolong;
+if (strlcat(pname, file, sizeof(pname)) \*[Ge] sizeof(pname))
+	goto toolong;
+.Ed
+.Pp
+Since we know how many characters we copied the first time, we can
+speed things up a bit by using a copy instead of an append:
+.Bd -literal -offset indent
+char *dir, *file, pname[MAXPATHLEN];
+size_t n;
+
+\&...
+
+n = strlcpy(pname, dir, sizeof(pname));
+if (n \*[Ge] sizeof(pname))
+	goto toolong;
+if (strlcpy(pname + n, file, sizeof(pname) - n) \*[Ge] sizeof(pname) - n)
+	goto toolong;
+.Ed
+.Pp
+However, one may question the validity of such optimizations, as they
+defeat the whole purpose of
+.Fn strlcpy
+and
+.Fn strlcat .
+.Sh SEE ALSO
+.Xr snprintf 3 ,
+.Xr strncat 3 ,
+.Xr strncpy 3
+.Rs
+.%A Todd C. Miller
+.%A Theo de Raadt
+.%T strlcpy and strlcat -- Consistent, Safe, String Copy and Concatenation
+.%I USENIX Association
+.%B Proceedings of the FREENIX Track: 1999 USENIX Annual Technical Conference
+.%D June 6-11, 1999
+.%U http://www.usenix.org/publications/library/proceedings/usenix99/full_papers/millert/millert.pdf
+.Re
+.Sh HISTORY
+The
+.Fn strlcpy
+and
+.Fn strlcat
+functions first appeared in
+.Ox 2.4 ,
+then in
+.Nx 1.4.3
+and
+.Fx 3.3 .

lib/nbsd_libc/string/strlen.3

@@ -0,0 +1,95 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)strlen.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: strlen.3,v 1.9 2009/05/01 17:27:01 perry Exp $
+.\"
+.Dd May 1, 2009
+.Dt STRLEN 3
+.Os
+.Sh NAME
+.Nm strlen ,
+.Nm strnlen
+.Nd find length of string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft size_t
+.Fn strlen "const char *s"
+.Ft size_t
+.Fn strnlen "const char *s" "size_t maxlen"
+.Sh DESCRIPTION
+The
+.Fn strlen
+function
+computes the length of the string
+.Fa s .
+.Pp
+The
+.Fn strnlen
+function attempts to compute the length of
+.Fa s ,
+but never scans beyond the first
+.Fa maxlen
+bytes of
+.Fa s .
+.Sh RETURN VALUES
+The
+.Fn strlen
+function
+returns
+the number of characters that precede the
+terminating
+.Dv NUL
+character.
+.Pp
+The
+.Fn strnlen
+function returns either the same result as
+.Fn strlen
+or
+.Fa maxlen ,
+whichever is smaller.
+.Sh SEE ALSO
+.Xr string 3 ,
+.Xr wcslen 3 ,
+.Xr wcswidth 3
+.Sh STANDARDS
+The
+.Fn strlen
+function
+conforms to
+.St -isoC .
+The
+.Fn strnlen
+function conforms to
+.St -p1003.1-2008 .

lib/nbsd_libc/string/strmode.3

@@ -0,0 +1,156 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)strmode.3	8.3 (Berkeley) 7/28/94
+.\"	$NetBSD: strmode.3,v 1.17 2006/10/16 08:48:45 wiz Exp $
+.\"
+.Dd July 28, 1994
+.Dt STRMODE 3
+.Os
+.Sh NAME
+.Nm strmode
+.Nd convert inode status information into a symbolic string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In unistd.h
+.Ft void
+.Fn strmode "mode_t mode" "char *bp"
+.Sh DESCRIPTION
+The
+.Fn strmode
+function
+converts a file
+.Fa mode
+(the type and permission information associated with an inode, see
+.Xr stat 2 )
+into a symbolic string which is stored in the location referenced by
+.Fa bp .
+This stored string is eleven characters in length plus a trailing nul byte.
+.Pp
+The first character is the inode type, and will be one of the following:
+.Pp
+.Bl -tag -width flag -offset indent -compact
+.It \-
+regular file
+.It a
+regular file in archive state 1
+.It A
+regular file in archive state 2
+.It b
+block special
+.It c
+character special
+.It d
+directory
+.It l
+symbolic link
+.It p
+fifo
+.It s
+socket
+.It w
+whiteout
+.It ?
+unknown inode type
+.El
+.Pp
+The next nine characters encode three sets of permissions, in three
+characters each.
+The first three characters are the permissions for the owner of the
+file, the second three for the group the file belongs to, and the
+third for the ``other'', or default, set of users.
+.Pp
+Permission checking is done as specifically as possible.
+If read permission is denied to the owner of a file in the first set
+of permissions, the owner of the file will not be able to read the file.
+This is true even if the owner is in the file's group and the group
+permissions allow reading or the ``other'' permissions allow reading.
+.Pp
+If the first character of the three character set is an ``r'', the file is
+readable for that set of users; if a dash ``\-'', it is not readable.
+.Pp
+If the second character of the three character set is a ``w'', the file is
+writable for that set of users; if a dash ``\-'', it is not writable.
+.Pp
+The third character is the first of the following characters that apply:
+.Bl -tag -width xxxx
+.It S
+If the character is part of the owner permissions and the file is not
+executable or the directory is not searchable by the owner, and the
+set-user-id bit is set.
+.It S
+If the character is part of the group permissions and the file is not
+executable or the directory is not searchable by the group, and the
+set-group-id bit is set.
+.It T
+If the character is part of the other permissions and the file is not
+executable or the directory is not searchable by others, and the ``sticky''
+.Pq Dv S_ISVTX
+bit is set.
+.It s
+If the character is part of the owner permissions and the file is
+executable or the directory searchable by the owner, and the set-user-id
+bit is set.
+.It s
+If the character is part of the group permissions and the file is
+executable or the directory searchable by the group, and the set-group-id
+bit is set.
+.It t
+If the character is part of the other permissions and the file is
+executable or the directory searchable by others, and the ``sticky''
+.Pq Dv S_ISVTX
+bit is set.
+.It x
+The file is executable or the directory is searchable.
+.It \-
+None of the above apply.
+.El
+.Pp
+The last character is a plus sign ``+'' if there are any alternative
+or additional access control methods associated with the inode, otherwise
+it will be a space.
+.Pp
+Archive state 1 and archive state 2 represent file system dependent
+archive state for a file.
+Most file systems do not retain file archive
+state, and so will not report files in either archive state.
+msdosfs will report a file in archive state 1 if it has been
+archived more recently than modified.
+Hierarchical storage systems may have multiple archive states for a
+file and may define archive states 1 and 2 as appropriate.
+.Sh SEE ALSO
+.Xr chmod 1 ,
+.Xr find 1 ,
+.Xr stat 2 ,
+.Xr getmode 3 ,
+.Xr setmode 3
+.Sh HISTORY
+The
+.Fn strmode
+function first appeared in
+.Bx 4.4 .

lib/nbsd_libc/string/strmode.c

@@ -0,0 +1,184 @@
+/*	$NetBSD: strmode.c,v 1.18 2006/10/07 22:04:18 apb Exp $	*/
+
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if HAVE_NBTOOL_CONFIG_H
+#include "nbtool_config.h"
+#endif
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char sccsid[] = "@(#)strmode.c	8.3 (Berkeley) 8/15/94";
+#else
+__RCSID("$NetBSD: strmode.c,v 1.18 2006/10/07 22:04:18 apb Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include "namespace.h"
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <assert.h>
+#include <unistd.h>
+
+#if !HAVE_STRMODE
+void
+strmode(mode, p)
+	mode_t mode;
+	char *p;
+{
+
+	_DIAGASSERT(p != NULL);
+
+	 /* print type */
+	switch (mode & S_IFMT) {
+	case S_IFDIR:			/* directory */
+		*p++ = 'd';
+		break;
+	case S_IFCHR:			/* character special */
+		*p++ = 'c';
+		break;
+	case S_IFBLK:			/* block special */
+		*p++ = 'b';
+		break;
+	case S_IFREG:			/* regular */
+#ifdef S_ARCH2
+		if ((mode & S_ARCH2) != 0) {
+			*p++ = 'A';
+		} else if ((mode & S_ARCH1) != 0) {
+			*p++ = 'a';
+		} else {
+#endif
+			*p++ = '-';
+#ifdef S_ARCH2
+		}
+#endif
+		break;
+	case S_IFLNK:			/* symbolic link */
+		*p++ = 'l';
+		break;
+#ifdef S_IFSOCK
+	case S_IFSOCK:			/* socket */
+		*p++ = 's';
+		break;
+#endif
+#ifdef S_IFIFO
+	case S_IFIFO:			/* fifo */
+		*p++ = 'p';
+		break;
+#endif
+#ifdef S_IFWHT
+	case S_IFWHT:			/* whiteout */
+		*p++ = 'w';
+		break;
+#endif
+#ifdef S_IFDOOR
+	case S_IFDOOR:			/* door */
+		*p++ = 'D';
+		break;
+#endif
+	default:			/* unknown */
+		*p++ = '?';
+		break;
+	}
+	/* usr */
+	if (mode & S_IRUSR)
+		*p++ = 'r';
+	else
+		*p++ = '-';
+	if (mode & S_IWUSR)
+		*p++ = 'w';
+	else
+		*p++ = '-';
+	switch (mode & (S_IXUSR | S_ISUID)) {
+	case 0:
+		*p++ = '-';
+		break;
+	case S_IXUSR:
+		*p++ = 'x';
+		break;
+	case S_ISUID:
+		*p++ = 'S';
+		break;
+	case S_IXUSR | S_ISUID:
+		*p++ = 's';
+		break;
+	}
+	/* group */
+	if (mode & S_IRGRP)
+		*p++ = 'r';
+	else
+		*p++ = '-';
+	if (mode & S_IWGRP)
+		*p++ = 'w';
+	else
+		*p++ = '-';
+	switch (mode & (S_IXGRP | S_ISGID)) {
+	case 0:
+		*p++ = '-';
+		break;
+	case S_IXGRP:
+		*p++ = 'x';
+		break;
+	case S_ISGID:
+		*p++ = 'S';
+		break;
+	case S_IXGRP | S_ISGID:
+		*p++ = 's';
+		break;
+	}
+	/* other */
+	if (mode & S_IROTH)
+		*p++ = 'r';
+	else
+		*p++ = '-';
+	if (mode & S_IWOTH)
+		*p++ = 'w';
+	else
+		*p++ = '-';
+	switch (mode & (S_IXOTH | S_ISVTX)) {
+	case 0:
+		*p++ = '-';
+		break;
+	case S_IXOTH:
+		*p++ = 'x';
+		break;
+	case S_ISVTX:
+		*p++ = 'T';
+		break;
+	case S_IXOTH | S_ISVTX:
+		*p++ = 't';
+		break;
+	}
+	*p++ = ' ';		/* will be a '+' if ACL's implemented */
+	*p = '\0';
+}
+#endif /* !HAVE_STRMODE */

lib/nbsd_libc/string/strncat.c

@@ -0,0 +1,79 @@
+/*	$NetBSD: strncat.c,v 1.11 2007/06/03 17:39:27 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char sccsid[] = "@(#)strncat.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: strncat.c,v 1.11 2007/06/03 17:39:27 christos Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include <assert.h>
+#include <string.h>
+
+#ifdef _FORTIFY_SOURCE
+#undef strncat
+#endif
+
+/*
+ * Concatenate src on the end of dst.  At most strlen(dst)+n+1 bytes
+ * are written at dst (at most n+1 bytes being appended).  Return dst.
+ */
+char *
+strncat(dst, src, n)
+	char *dst;
+	const char *src;
+	size_t n;
+{
+
+	_DIAGASSERT(dst != NULL);
+	_DIAGASSERT(src != NULL);
+
+	if (n != 0) {
+		char *d = dst;
+		const char *s = src;
+
+		while (*d != 0)
+			d++;
+		do {
+			if ((*d = *s++) == 0)
+				break;
+			d++;
+		} while (--n != 0);
+		*d = 0;
+	}
+	return (dst);
+}

lib/nbsd_libc/string/strndup.c

@@ -0,0 +1,74 @@
+/*	$NetBSD: strndup.c,v 1.4 2007/07/03 12:11:09 nakayama Exp $	*/
+
+/*
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if HAVE_NBTOOL_CONFIG_H
+#include "nbtool_config.h"
+#endif
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char sccsid[] = "@(#)strdup.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: strndup.c,v 1.4 2007/07/03 12:11:09 nakayama Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include "namespace.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef __weak_alias
+__weak_alias(strndup,_strndup)
+#endif
+
+#if !HAVE_STRNDUP
+char *
+strndup(const char *str, size_t n)
+{
+	size_t len;
+	char *copy;
+
+	_DIAGASSERT(str != NULL);
+
+	for (len = 0; len < n && str[len]; len++)
+		continue;
+
+	if (!(copy = malloc(len + 1)))
+		return (NULL);
+	memcpy(copy, str, len);
+	copy[len] = '\0';
+	return (copy);
+}
+#endif /* !HAVE_STRNDUP */

lib/nbsd_libc/string/strnlen.c

@@ -0,0 +1,47 @@
+/*	$NetBSD: strnlen.c,v 1.1 2009/05/01 17:27:01 perry Exp $	*/
+
+/*-
+ * Copyright (c) 2009 David Schultz <das@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: strnlen.c,v 1.1 2009/05/01 17:27:01 perry Exp $");
+#endif /* LIBC_SCCS and not lint */
+/* FreeBSD: src/lib/libc/string/strnlen.c,v 1.1 2009/02/28 06:00:58 das Exp */
+
+#include <string.h>
+
+size_t
+strnlen(const char *s, size_t maxlen)
+{
+	size_t len;
+
+	for (len = 0; len < maxlen; len++, s++) {
+		if (!*s)
+			break;
+	}
+	return (len);
+}

lib/nbsd_libc/string/strpbrk.3

@@ -0,0 +1,79 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)strpbrk.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: strpbrk.3,v 1.9 2006/10/16 08:48:45 wiz Exp $
+.\"
+.Dd June 4, 1993
+.Dt STRPBRK 3
+.Os
+.Sh NAME
+.Nm strpbrk
+.Nd locate multiple characters in string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strpbrk "const char *s" "const char *charset"
+.Sh DESCRIPTION
+The
+.Fn strpbrk
+function
+locates in the nul-terminated string
+.Fa s
+the first occurrence of any character in the string
+.Fa charset
+and returns a pointer to this character.
+If no characters from
+.Fa charset
+occur anywhere in
+.Fa s
+.Fn strpbrk
+returns
+.Dv NULL .
+.Sh SEE ALSO
+.Xr index 3 ,
+.Xr memchr 3 ,
+.Xr rindex 3 ,
+.Xr strchr 3 ,
+.Xr strcspn 3 ,
+.Xr strrchr 3 ,
+.Xr strsep 3 ,
+.Xr strspn 3 ,
+.Xr strstr 3 ,
+.Xr strtok 3
+.Sh STANDARDS
+The
+.Fn strpbrk
+function
+conforms to
+.St -ansiC .

lib/nbsd_libc/string/strpbrk.c

@@ -0,0 +1,70 @@
+/*	$NetBSD: strpbrk.c,v 1.19 2008/09/24 16:58:53 christos Exp $	*/
+
+/*-
+ * Copyright (c) 2008 Joerg Sonnenberger
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: strpbrk.c,v 1.19 2008/09/24 16:58:53 christos Exp $");
+
+#include <assert.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <string.h>
+
+#define FAST_STRPBRK 1
+#define UC(a) ((unsigned int)(unsigned char)(a))
+
+#ifdef FAST_STRPBRK
+#define ADD_NEW_TO_SET(i) (set[inv[i] = idx++] = (i))
+#define IS_IN_SET(i) (inv[i] < idx && set[inv[i]] == (i))
+#define ADD_TO_SET(i) (void)(IS_IN_SET(i) || /*LINTED no effect*/ADD_NEW_TO_SET(i))
+#else
+#define IS_IN_SET(i) (set[(i) >> 3] & idx[(i) & 7])
+#define ADD_TO_SET(i) (void)(set[(i) >> 3] |= idx[(i) & 7])
+#endif
+
+char *
+strpbrk(const char *s, const char *charset)
+{
+#ifdef FAST_STRPBRK
+	uint8_t set[256], inv[256], idx = 0;
+#else
+	static const size_t idx[8] = { 1, 2, 4, 8, 16, 32, 64, 128 };
+	uint8_t set[32];
+
+	(void)memset(set, 0, sizeof(set));
+#endif
+
+	_DIAGASSERT(s != NULL);
+	_DIAGASSERT(charset != NULL);
+
+	for (; *charset != '\0'; ++charset)
+		ADD_TO_SET(UC(*charset));
+
+	for (; *s != '\0'; ++s)
+		if (IS_IN_SET(UC(*s)))
+			return __UNCONST(s);
+	return NULL;
+}

lib/nbsd_libc/string/strrchr.3

@@ -0,0 +1,100 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)strrchr.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: strrchr.3,v 1.10 2006/10/16 08:48:45 wiz Exp $
+.\"
+.Dd August 11, 2002
+.Dt STRRCHR 3
+.Os
+.Sh NAME
+.Nm strrchr
+.Nd locate character in string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strrchr "const char *s" "int c"
+.Sh DESCRIPTION
+The
+.Fn strrchr
+function
+locates the last occurrence of
+.Fa c
+(converted to a char)
+in the string
+.Fa s .
+If
+.Fa c
+is
+.Ql \e0 ,
+.Fn strrchr
+locates the terminating
+.Ql \e0 .
+.Sh RETURN VALUES
+The
+.Fn strrchr
+function
+returns a pointer to the character,
+or a null pointer if
+.Fa c
+does not occur anywhere in
+.Fa s .
+.Sh EXAMPLES
+After the following call to
+.Fn strrchr ,
+.Va p
+will point to the string
+.Qq obar :
+.Bd -literal -offset indent
+char *p;
+char *s = "foobar";
+
+p = strrchr(s, 'o');
+.Ed
+.Sh SEE ALSO
+.Xr index 3 ,
+.Xr memchr 3 ,
+.Xr rindex 3 ,
+.Xr strchr 3 ,
+.Xr strcspn 3 ,
+.Xr strpbrk 3 ,
+.Xr strsep 3 ,
+.Xr strspn 3 ,
+.Xr strstr 3 ,
+.Xr strtok 3
+.Sh STANDARDS
+The
+.Fn strrchr
+function
+conforms to
+.St -ansiC .

lib/nbsd_libc/string/strsep.3

@@ -0,0 +1,120 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)strsep.3	8.1 (Berkeley) 6/9/93
+.\"	$NetBSD: strsep.3,v 1.19 2006/10/16 08:48:45 wiz Exp $
+.\"
+.Dd August 12, 2006
+.Dt STRSEP 3
+.Os
+.Sh NAME
+.Nm strsep ,
+.Nm stresep
+.Nd separate strings
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strsep "char **stringp" "const char *delim"
+.Ft char *
+.Fn stresep "char **stringp" "const char *delim" "int escape"
+.Sh DESCRIPTION
+The
+.Fn strsep
+function locates, in the nul-terminated string referenced by
+.Fa *stringp ,
+the first occurrence of any character in the string
+.Fa delim
+(or the terminating
+.Ql \e0
+character) and replaces it with a
+.Ql \e0 .
+The location of the next character after the delimiter character
+(or
+.Dv NULL ,
+if the end of the string was reached) is stored in
+.Fa *stringp .
+The original value of
+.Fa *stringp
+is returned.
+.Pp
+An
+.Dq empty
+field, i.e., one caused by two adjacent delimiter characters,
+can be detected by comparing the location referenced by the pointer returned
+by
+.Fn strsep
+to
+.Ql \e0 .
+.Pp
+If
+.Fa *stringp
+is initially
+.Dv NULL ,
+.Fn strsep
+returns
+.Dv NULL .
+The
+.Fn stresep
+function also takes an escape character that allows quoting the delimiter
+character so that it can be part of the source string.
+.Sh EXAMPLES
+The following uses
+.Fn strsep
+to parse a string, containing tokens delimited by white space, into an
+argument vector:
+.Bd -literal -offset indent
+char **ap, *argv[10], *inputstring;
+
+for (ap = argv; ap \*[Lt] \*[Am]argv[9] \*[Am]\*[Am]
+    (*ap = strsep(\*[Am]inputstring, " \et")) != NULL;) {
+	if (**ap != '\e0')
+		ap++;
+}
+.Ed
+.Sh HISTORY
+The
+.Fn strsep
+function
+is intended as a replacement for the
+.Fn strtok
+function.
+While the
+.Fn strtok
+function should be preferred for portability reasons (it conforms to
+.St -ansiC )
+it is unable to handle empty fields, i.e., detect fields delimited by
+two adjacent delimiter characters, or to be used for more than a single
+string at a time.
+The
+.Fn strsep
+function first appeared in
+.Bx 4.4 .

lib/nbsd_libc/string/strsignal.3

@@ -0,0 +1,64 @@
+.\" Copyright (c) 1980, 1991 Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)strerror.3	6.9 (Berkeley) 6/29/91
+.\"	$NetBSD: strsignal.3,v 1.10 2009/07/22 19:48:27 kleink Exp $
+.\"
+.Dd July 22, 2009
+.Dt STRSIGNAL 3
+.Os
+.Sh NAME
+.Nm strsignal
+.Nd get signal description string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strsignal "int sig"
+.Sh DESCRIPTION
+The
+.Fn strsignal
+function returns a pointer to the language-dependent string describing
+a signal.
+.Pp
+The array pointed to is not to be modified by the program, but may be
+overwritten by subsequent calls to
+.Fn strsignal .
+.Sh SEE ALSO
+.Xr intro 2 ,
+.Xr psignal 3 ,
+.Xr setlocale 3
+.\" .Sh STANDARDS
+.\" The
+.\" .Fn strsignal
+.\" function conforms to
+.\" .St -p1003.1-2008 .

lib/nbsd_libc/string/strsignal.c

@@ -0,0 +1,57 @@
+/*	$NetBSD: strsignal.c,v 1.14 2009/07/22 19:48:27 kleink Exp $	*/
+
+/*
+ * Copyright (c) 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char *sccsid = "@(#)strerror.c	5.6 (Berkeley) 5/4/91";
+#else
+__RCSID("$NetBSD: strsignal.c,v 1.14 2009/07/22 19:48:27 kleink Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include "namespace.h"
+#include <string.h>
+#include <limits.h>
+#include "extern.h"
+
+#ifdef __weak_alias
+__weak_alias(strsignal,_strsignal)
+#endif
+
+__aconst char *
+strsignal(sig)
+	int sig;
+{
+	static char buf[NL_TEXTMAX];
+
+	return __UNCONST(__strsignal(sig, buf, NL_TEXTMAX));
+}

lib/nbsd_libc/string/strspn.3

@@ -0,0 +1,92 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)strspn.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: strspn.3,v 1.11 2006/10/16 08:48:45 wiz Exp $
+.\"
+.Dd August 11, 2002
+.Dt STRSPN 3
+.Os
+.Sh NAME
+.Nm strspn
+.Nd span a string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft size_t
+.Fn strspn "const char *s" "const char *charset"
+.Sh DESCRIPTION
+The
+.Fn strspn
+function
+spans the initial part of the nul-terminated string
+.Fa s
+as long as the characters from
+.Fa s
+occur in string
+.Fa charset .
+.Sh RETURN VALUES
+The
+.Fn strspn
+function
+returns the number of characters spanned.
+.Sh EXAMPLES
+The following call to
+.Fn strspn
+will return 3, since the first three characters of string
+.Fa s
+are part of string
+.Fa charset :
+.Bd -literal -offset indent
+char *s = "foobar";
+char *charset = "of";
+size_t span;
+
+span = strspn(s, charset);
+.Ed
+.Sh SEE ALSO
+.Xr index 3 ,
+.Xr memchr 3 ,
+.Xr rindex 3 ,
+.Xr strchr 3 ,
+.Xr strcspn 3 ,
+.Xr strpbrk 3 ,
+.Xr strrchr 3 ,
+.Xr strsep 3 ,
+.Xr strstr 3 ,
+.Xr strtok 3
+.Sh STANDARDS
+The
+.Fn strspn
+function
+conforms to
+.St -ansiC .

lib/nbsd_libc/string/strspn.c

@@ -0,0 +1,151 @@
+/*	$NetBSD: strspn.c,v 1.17 2009/07/30 21:42:06 dsl Exp $	*/
+
+/*-
+ * Copyright (c) 2008 Joerg Sonnenberger
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: strspn.c,v 1.17 2009/07/30 21:42:06 dsl Exp $");
+
+#include <assert.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <string.h>
+
+#if ULONG_MAX != 0xffffffffffffffffull
+
+size_t
+strspn(const char *s, const char *charset)
+{
+	static const size_t idx[8] = { 1, 2, 4, 8, 16, 32, 64, 128 };
+	uint8_t set[32];
+	const char *t;
+#define UC(a) ((unsigned int)(unsigned char)(a))
+
+	_DIAGASSERT(s != NULL);
+	_DIAGASSERT(charset != NULL);
+
+	if (charset[0] == '\0')
+		return 0;
+	if (charset[1] == '\0') {
+		for (t = s; *t != '\0'; ++t) {
+			if (*t != *charset)
+				break;
+		}
+		return t - s;
+	}
+
+	(void)memset(set, 0, sizeof(set));
+
+	for (; *charset != '\0'; ++charset)
+		set[UC(*charset) >> 3] |= idx[UC(*charset) & 7];
+
+	for (t = s; *t != '\0'; ++t)
+		if ((set[UC(*t) >> 3] & idx[UC(*t) & 7]) == 0)
+			break;
+	return t - s;
+}
+
+#else
+
+/* 64 bit system, use four 64 bits registers for bitmask */
+
+static size_t
+strspn_x(const char *s_s, const char *charset_s, unsigned long invert)
+{
+	const unsigned char *s = (const unsigned char *)s_s;
+	const unsigned char *charset = (const unsigned char *)charset_s;
+	unsigned long m_0, m_4, m_8, m_c;
+	unsigned char ch, next_ch;
+	unsigned long bit;
+	unsigned long check;
+	size_t count;
+
+	/* Four 64bit registers have one bit for each character value */
+	m_0 = 0;
+	m_4 = 0;
+	m_8 = 0;
+	m_c = 0;
+
+	for (ch = *charset; ch != 0; ch = next_ch) {
+		next_ch = *++charset;
+		bit = 1ul << (ch & 0x3f);
+		if (__predict_true(ch < 0x80)) {
+			if (ch < 0x40)
+				m_0 |= bit;
+			else
+				m_4 |= bit;
+		} else {
+			if (ch < 0xc0)
+				m_8 |= bit;
+			else
+				m_c |= bit;
+		}
+	}
+
+	/* For strcspn() we just invert the validity set */
+	m_0 ^= invert;
+	m_4 ^= invert;
+	m_8 ^= invert;
+	m_c ^= invert;
+
+	/*
+	 * We could do remove the lsb from m_0 to terminate at the
+	 * end of the input string.
+	 * However prefetching the next char is benifitial and we must
+	 * not read the byte after the \0 - as it might fault!
+	 * So we take the 'hit' of the compare against 0.
+	 */
+
+	ch = *s++;
+	for (count = 0; ch != 0; ch = next_ch) {
+		next_ch = s[count];
+		if (__predict_true(ch < 0x80)) {
+			check = m_0;
+			if (ch >= 0x40)
+				check = m_4;
+		} else {
+			check = m_8;
+			if (ch >= 0xc0)
+				check = m_c;
+		}
+		if (!((check >> (ch & 0x3f)) & 1))
+			break;
+		count++;
+	}
+	return count;
+}
+
+size_t
+strspn(const char *s, const char *charset)
+{
+	return strspn_x(s, charset, 0);
+}
+
+size_t
+strcspn(const char *s, const char *charset)
+{
+	return strspn_x(s, charset, ~0ul);
+}
+#endif

lib/nbsd_libc/string/strstr.3

@@ -0,0 +1,109 @@
+.\" Copyright (c) 2001 Mike Barcroft <mike@FreeBSD.org>
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)strstr.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: strstr.3,v 1.10 2006/10/16 08:48:45 wiz Exp $
+.\"
+.Dd July 3, 2004
+.Dt STRSTR 3
+.Os
+.Sh NAME
+.Nm strstr , strcasestr
+.Nd locate a substring in a string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strstr "const char *big" "const char *little"
+.Ft char *
+.Fn strcasestr "const char *big" "const char *little"
+.Sh DESCRIPTION
+The
+.Fn strstr
+function
+locates the first occurrence of the nul-terminated string
+.Fa little
+in the nul-terminated string
+.Fa big .
+.Pp
+The
+.Fn strcasestr
+function is similar to
+.Fn strstr ,
+but ignores the case of both strings.
+.Sh RETURN VALUES
+If
+.Fa little
+is an empty string,
+.Fa big
+is returned;
+if
+.Fa little
+occurs nowhere in
+.Fa big ,
+.Dv NULL
+is returned;
+otherwise a pointer to the first character of the first occurrence of
+.Fa little
+is returned.
+.Sh EXAMPLES
+The following sets the pointer
+.Va ptr
+to the
+.Qq Li Bar Baz
+portion of
+.Va largestring :
+.Bd -literal -offset indent
+const char *largestring = "Foo Bar Baz";
+const char *smallstring = "Bar";
+char *ptr;
+
+ptr = strstr(largestring, smallstring);
+.Ed
+.Sh SEE ALSO
+.Xr index 3 ,
+.Xr memchr 3 ,
+.Xr rindex 3 ,
+.Xr strchr 3 ,
+.Xr strcspn 3 ,
+.Xr strpbrk 3 ,
+.Xr strrchr 3 ,
+.Xr strsep 3 ,
+.Xr strspn 3 ,
+.Xr strtok 3
+.Sh STANDARDS
+The
+.Fn strstr
+function
+conforms to
+.St -isoC .

lib/nbsd_libc/string/strtok.3

@@ -0,0 +1,162 @@
+.\" Copyright (c) 1988, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)strtok.3	8.2 (Berkeley) 2/3/94
+.\"	$NetBSD: strtok.3,v 1.23 2008/08/29 05:48:40 dholland Exp $
+.\"
+.Dd August 11, 2002
+.Dt STRTOK 3
+.Os
+.Sh NAME
+.Nm strtok, strtok_r
+.Nd string tokens
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strtok "char * restrict str" "const char * restrict sep"
+.Ft char *
+.Fn strtok_r "char *str" "const char *sep" "char **lasts"
+.Sh DESCRIPTION
+The
+.Fn strtok
+function
+is used to isolate sequential tokens in a nul-terminated string,
+.Fa str .
+These tokens are separated in the string by at least one of the
+characters in
+.Fa sep .
+The first time that
+.Fn strtok
+is called,
+.Fa str
+should be specified; subsequent calls, wishing to obtain further tokens
+from the same string, should pass a null pointer instead.
+The separator string,
+.Fa sep ,
+must be supplied each time, and may change between calls.
+.Pp
+The
+.Fn strtok
+function
+returns a pointer to the beginning of each subsequent token in the string,
+after replacing the separator character itself with a
+.Dv NUL
+character.
+Separator characters at the beginning of the string or at the
+continuation point are skipped so that zero length tokens
+are not returned.
+When no more tokens remain, a null pointer is returned.
+.Pp
+The
+.Fn strtok_r
+function implements the functionality of
+.Fn strtok
+but is passed an additional argument,
+.Fa lasts ,
+which points to a user-provided pointer which is used by
+.Fn strtok_r
+to store state which needs to be kept between calls to scan the same string;
+unlike
+.Fn strtok ,
+it is not necessary to limit tokenizing to a single string at a time
+when using
+.Fn strtok_r .
+.Sh EXAMPLES
+The following will construct an array of pointers to each individual word in
+the string
+.Va s :
+.Bd -literal -offset indent
+#define MAXTOKENS	128
+
+char s[512], *p, *tokens[MAXTOKENS];
+char *last;
+int i = 0;
+
+snprintf(s, sizeof(s), "cat dog horse cow");
+
+for ((p = strtok_r(s, " ", &last)); p;
+    (p = strtok_r(NULL, " ", &last)), i++) {
+	if (i < MAXTOKENS - 1)
+		tokens[i] = p;
+}
+tokens[i] = NULL;
+.Ed
+.Pp
+That is,
+.Li tokens[0]
+will point to
+.Qq cat ,
+.Li tokens[1]
+will point to
+.Qq dog ,
+.Li tokens[2]
+will point to
+.Qq horse ,
+and
+.Li tokens[3]
+will point to
+.Qq cow .
+.Sh SEE ALSO
+.Xr index 3 ,
+.Xr memchr 3 ,
+.Xr rindex 3 ,
+.Xr strchr 3 ,
+.Xr strcspn 3 ,
+.Xr strpbrk 3 ,
+.Xr strrchr 3 ,
+.Xr strsep 3 ,
+.Xr strspn 3 ,
+.Xr strstr 3
+.Sh STANDARDS
+The
+.Fn strtok
+function
+conforms to
+.St -ansiC .
+The
+.Fn strtok_r
+function conforms to
+.St -p1003.1c-95 .
+.Sh BUGS
+The System V
+.Fn strtok ,
+if handed a string containing only delimiter characters,
+will not alter the next starting point, so that a call to
+.Fn strtok
+with a different (or empty) delimiter string
+may return a
+.Pf non- Dv NULL
+value.
+Since this implementation always alters the next starting point,
+such a sequence of calls would always return
+.Dv NULL .

lib/nbsd_libc/string/strtok.c

@@ -0,0 +1,50 @@
+/*	$NetBSD: strtok.c,v 1.12 2004/10/27 19:12:31 dsl Exp $	*/
+
+/*
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char sccsid[] = "@(#)strtok.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: strtok.c,v 1.12 2004/10/27 19:12:31 dsl Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include <namespace.h>
+#include <string.h>
+
+char *
+strtok(char *s, const char *delim)
+{
+	static char *lasts;
+
+	return strtok_r(s, delim, &lasts);
+}

lib/nbsd_libc/string/strtok_r.c

@@ -0,0 +1,102 @@
+/*	$NetBSD: strtok_r.c,v 1.9 2003/08/07 16:43:53 agc Exp $	*/
+
+/*
+ * Copyright (c) 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char *sccsid = "@(#)strtok.c	5.8 (Berkeley) 2/24/91";
+#else
+__RCSID("$NetBSD: strtok_r.c,v 1.9 2003/08/07 16:43:53 agc Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include "namespace.h"
+
+#include <assert.h>
+#include <string.h>
+
+#ifdef __weak_alias
+__weak_alias(strtok_r,_strtok_r)
+#endif
+
+char *
+strtok_r(s, delim, lasts)
+	char *s;
+	const char *delim;
+	char **lasts;
+{
+	const char *spanp;
+	int c, sc;
+	char *tok;
+
+	/* s may be NULL */
+	_DIAGASSERT(delim != NULL);
+	_DIAGASSERT(lasts != NULL);
+
+	if (s == NULL && (s = *lasts) == NULL)
+		return (NULL);
+
+	/*
+	 * Skip (span) leading delimiters (s += strspn(s, delim), sort of).
+	 */
+cont:
+	c = *s++;
+	for (spanp = delim; (sc = *spanp++) != 0;) {
+		if (c == sc)
+			goto cont;
+	}
+
+	if (c == 0) {		/* no non-delimiter characters */
+		*lasts = NULL;
+		return (NULL);
+	}
+	tok = s - 1;
+
+	/*
+	 * Scan token (scan for delimiters: s += strcspn(s, delim), sort of).
+	 * Note that delim must have one NUL; we stop if we see that, too.
+	 */
+	for (;;) {
+		c = *s++;
+		spanp = delim;
+		do {
+			if ((sc = *spanp++) == c) {
+				if (c == 0)
+					s = NULL;
+				else
+					s[-1] = 0;
+				*lasts = s;
+				return (tok);
+			}
+		} while (sc != 0);
+	}
+	/* NOTREACHED */
+}

lib/nbsd_libc/string/strxfrm.3

@@ -0,0 +1,78 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)strxfrm.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: strxfrm.3,v 1.11 2007/02/18 00:46:47 wiz Exp $
+.\"
+.Dd February 18, 2007
+.Dt STRXFRM 3
+.Os
+.Sh NAME
+.Nm strxfrm
+.Nd transform a string under locale
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In string.h
+.Ft size_t
+.Fn strxfrm "char * restrict dst" "const char * restrict src" "size_t n"
+.Sh DESCRIPTION
+The idea of
+.Fn strxfrm
+is to
+.Dq un-localize
+a string: the function transforms
+.Ar src ,
+storing the result in
+.Ar dst ,
+such that
+.Xr strcmp 3
+on transformed strings returns what
+.Xr strcoll 3
+on the original untransformed strings would return.
+.Sh SEE ALSO
+.Xr bcmp 3 ,
+.Xr memcmp 3 ,
+.\" .Xr setlocale 3 ,
+.Xr strcasecmp 3 ,
+.Xr strcmp 3 ,
+.Xr strcoll 3
+.Sh STANDARDS
+The
+.Fn strxfrm
+function
+conforms to
+.St -ansiC .
+.Sh BUGS
+Since locales are not fully implemented on
+.Nx ,
+.Fn strxfrm
+just returns a copy of the original string.

lib/nbsd_libc/string/strxfrm.c

@@ -0,0 +1,73 @@
+/*	$NetBSD: strxfrm.c,v 1.11 2003/08/07 16:43:53 agc Exp $	*/
+
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char sccsid[] = "@(#)strxfrm.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: strxfrm.c,v 1.11 2003/08/07 16:43:53 agc Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include <assert.h>
+#include <string.h>
+
+/*
+ * Transform src, storing the result in dst, such that
+ * strcmp() on transformed strings returns what strcoll()
+ * on the original untransformed strings would return.
+ */
+size_t
+strxfrm(dst, src, n)
+	char *dst;
+	const char *src;
+	size_t n;
+{
+	size_t srclen, copysize;
+
+	_DIAGASSERT(src != NULL);
+
+	/*
+	 * Since locales are unimplemented, this is just a copy.
+	 */
+	srclen = strlen(src);
+	if (n != 0) {
+		_DIAGASSERT(dst != NULL);
+		copysize = srclen < n ? srclen : n - 1;
+		(void)memcpy(dst, src, copysize);
+		dst[copysize] = 0;
+	}
+	return (srclen);
+}

lib/nbsd_libc/string/swab.3

@@ -0,0 +1,92 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)swab.3	8.1 (Berkeley) 6/4/93
+.\"	$NetBSD: swab.3,v 1.15 2010/04/30 03:52:13 jruoho Exp $
+.\"
+.Dd April 30, 2010
+.Dt SWAB 3
+.Os
+.Sh NAME
+.Nm swab
+.Nd swap adjacent bytes
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In unistd.h
+.Ft void
+.Fn swab "const void * restrict src" "void * restrict dst" "ssize_t len"
+.Sh DESCRIPTION
+The function
+.Fn swab
+copies
+.Fa len
+bytes from the location referenced by
+.Fa src
+to the location referenced by
+.Fa dst ,
+swapping adjacent bytes.
+.Pp
+If
+.Fa len
+is negative or zero,
+.Fn swab
+does nothing.
+If
+.Fa len
+is odd,
+.Fn swab
+copies
+.Fa len - 1
+bytes and the disposition of the last byte is unspecified.
+.Sh SEE ALSO
+.Xr bzero 3 ,
+.Xr memset 3
+.Sh STANDARDS
+The
+.Fn swab
+function conforms to
+.St -p1003.1-2001 .
+.Sh HISTORY
+A
+.Fn swab
+function appeared in
+.At v7 .
+It was originally documented to be
+.Dq useful for carrying binary data between PDP11's and other machines .
+.Pp
+In
+.Nx 6.0
+the type of
+.Fa len
+was changed from
+.Vt size_t
+to
+.Vt ssize_t
+for
+.Tn POSIX
+compliance.

lib/nbsd_libc/string/swab.c

@@ -0,0 +1,80 @@
+/*	$NetBSD: swab.c,v 1.18 2011/01/04 17:14:07 martin Exp $	*/
+
+/*
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Jeffrey Mogul.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char sccsid[] = "@(#)swab.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: swab.c,v 1.18 2011/01/04 17:14:07 martin Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include <assert.h>
+#include <unistd.h>
+
+void
+swab(const void * __restrict from, void * __restrict to, ssize_t len)
+{
+	char temp;
+	const char *fp;
+	char *tp;
+
+	if (len <= 1)
+		return;
+
+	_DIAGASSERT(from != NULL);
+	_DIAGASSERT(to != NULL);
+
+	len /= 2;
+	fp = (const char *)from;
+	tp = (char *)to;
+#define	STEP	temp = *fp++,*tp++ = *fp++,*tp++ = temp
+
+	if (__predict_false(len == 1)) {
+		STEP;
+		return;
+	}
+
+	/* round to multiple of 8 */
+	while ((--len % 8) != 0)
+		STEP;
+	len /= 8;
+	if (len == 0)
+		return;
+	while (len-- != 0) {
+		STEP; STEP; STEP; STEP;
+		STEP; STEP; STEP; STEP;
+	}
+}

lib/nbsd_libc/string/wcscasecmp.3

@@ -0,0 +1,86 @@
+.\"	$NetBSD: wcscasecmp.3,v 1.3 2010/12/16 17:42:28 wiz Exp $
+.\"
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek.
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)wcscasecmp.3	8.1 (Berkeley) 6/9/93
+.\"
+.Dd August 26, 2006
+.Dt WCSCASECMP 3
+.Os
+.Sh NAME
+.Nm wcscasecmp ,
+.Nm wcsncasecmp
+.Nd compare wide-character strings, ignoring case
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In wchar.h
+.Ft int
+.Fn wcscasecmp "const wchar_t *s1" "const wchar_t *s2"
+.Ft int
+.Fn wcsncasecmp "const wchar_t *s1" "const wchar_t *s2" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn wcscasecmp
+and
+.Fn wcsncasecmp
+functions
+compare the nul-terminated strings
+.Fa s1
+and
+.Fa s2
+and return an integer greater than, equal to, or less than 0,
+according to whether
+.Fa s1
+is lexicographically greater than, equal to, or less than
+.Fa s2
+after translation of each corresponding character to lower-case.
+The strings themselves are not modified.
+.Pp
+The
+.Fn wcsncasecmp
+compares at most
+.Fa len
+characters.
+.Sh SEE ALSO
+.Xr wcscmp 3
+.Sh HISTORY
+The
+.Fn wcscasecmp
+and
+.Fn wcsncasecmp
+functions first appeared in
+.Nx 4.0 .
+.Sh NOTES
+If
+.Fa len
+is zero,
+.Fn wcsncasecmp
+returns always 0.

lib/nbsd_libc/string/wcscasecmp.c

@@ -0,0 +1,50 @@
+/*	$NetBSD: wcscasecmp.c,v 1.2 2006/08/26 22:45:52 christos Exp $	*/
+
+/*
+ * Copyright (C) 2006 Aleksey Cheusov
+ *
+ * This material is provided "as is", with absolutely no warranty expressed
+ * or implied. Any use is at your own risk.
+ *
+ * Permission to use or copy this software for any purpose is hereby granted 
+ * without fee. Permission to modify the code and to distribute modified
+ * code is also granted without any restrictions.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint) 
+__RCSID("$NetBSD: wcscasecmp.c,v 1.2 2006/08/26 22:45:52 christos Exp $"); 
+#endif /* LIBC_SCCS and not lint */ 
+
+#include "namespace.h"
+#include <assert.h>
+#include <wchar.h>
+#include <wctype.h>
+
+__weak_alias(wcscasecmp,_wcscasecmp)
+
+int
+wcscasecmp(const wchar_t *s1, const wchar_t *s2)
+{
+	int lc1  = 0;
+	int lc2  = 0;
+	int diff = 0;
+
+	_DIAGASSERT(s1);
+	_DIAGASSERT(s2);
+
+	for (;;) {
+		lc1 = towlower(*s1);
+		lc2 = towlower(*s2);
+
+		diff = lc1 - lc2;
+		if (diff)
+			return diff;
+
+		if (!lc1)
+			return 0;
+
+		++s1;
+		++s2;
+	}
+}

lib/nbsd_libc/string/wcscat.c

@@ -0,0 +1,60 @@
+/*	$NetBSD: wcscat.c,v 1.2 2001/01/03 14:29:36 lukem Exp $	*/
+
+/*-
+ * Copyright (c)1999 Citrus Project,
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	citrus Id: wcscat.c,v 1.1 1999/12/29 21:47:45 tshiozak Exp
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: wcscat.c,v 1.2 2001/01/03 14:29:36 lukem Exp $");
+#endif /* LIBC_SCCS and not lint */
+
+#include <assert.h>
+#include <wchar.h>
+
+wchar_t *
+wcscat(s1, s2)
+	wchar_t *s1;
+	const wchar_t *s2;
+{
+	wchar_t *p;
+	wchar_t *q;
+	const wchar_t *r;
+
+	_DIAGASSERT(s1 != NULL);
+	_DIAGASSERT(s2 != NULL);
+
+	p = s1;
+	while (*p)
+		p++;
+	q = p;
+	r = s2;
+	while (*r)
+		*q++ = *r++;
+	*q = '\0';
+	return s1;
+}

lib/nbsd_libc/string/wcschr.c

@@ -0,0 +1,53 @@
+/*	$NetBSD: wcschr.c,v 1.4 2005/06/04 20:09:56 dsl Exp $	*/
+
+/*-
+ * Copyright (c)1999 Citrus Project,
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	citrus Id: wcschr.c,v 1.2 2000/12/21 05:07:25 itojun Exp
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: wcschr.c,v 1.4 2005/06/04 20:09:56 dsl Exp $");
+#endif /* LIBC_SCCS and not lint */
+
+#include <assert.h>
+#include <wchar.h>
+
+wchar_t *
+wcschr(const wchar_t *p, wchar_t c)
+{
+	_DIAGASSERT(p != NULL);
+
+	for (;; ++p) {
+		if (*p == c) {
+			/* LINTED interface specification */
+			return __UNCONST(p);
+		}
+		if (!*p)
+			return NULL;
+	}
+	/*NOTREACHED*/
+}

lib/nbsd_libc/string/wcscmp.c

@@ -0,0 +1,64 @@
+/*	$NetBSD: wcscmp.c,v 1.8 2009/01/11 02:46:30 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char sccsid[] = "@(#)strcmp.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: wcscmp.c,v 1.8 2009/01/11 02:46:30 christos Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include <assert.h>
+#include <wchar.h>
+#include "runetype_local.h"
+
+/*
+ * Compare strings.
+ */
+int
+wcscmp(s1, s2)
+	const wchar_t *s1, *s2;
+{
+
+	_DIAGASSERT(s1 != NULL);
+	_DIAGASSERT(s2 != NULL);
+
+	while (*s1 == *s2++)
+		if (*s1++ == 0)
+			return (0);
+	/* XXX assumes wchar_t = int */
+	return (*(const __nbrune_t *)s1 - *(const __nbrune_t *)--s2);
+}

lib/nbsd_libc/string/wcscpy.c

@@ -0,0 +1,52 @@
+/*	$NetBSD: wcscpy.c,v 1.3 2005/10/13 21:13:05 tnozaki Exp $	*/
+
+/*-
+ * Copyright (c)1999 Citrus Project,
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	citrus Id: wcscpy.c,v 1.2 2000/12/21 04:51:09 itojun Exp
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: wcscpy.c,v 1.3 2005/10/13 21:13:05 tnozaki Exp $");
+#endif /* LIBC_SCCS and not lint */
+
+#include <assert.h>
+#include <wchar.h>
+
+wchar_t *
+wcscpy(s1, s2)
+	wchar_t *s1;
+	const wchar_t *s2;
+{
+	wchar_t *p;
+
+	_DIAGASSERT(s1 != NULL);
+	_DIAGASSERT(s2 != NULL);
+
+	for (p = s1; (*p = *s2) != L'\0'; ++p, ++s2);
+
+	return s1;
+}

lib/nbsd_libc/string/wcscspn.c

@@ -0,0 +1,63 @@
+/*	$NetBSD: wcscspn.c,v 1.2 2001/01/03 14:29:36 lukem Exp $	*/
+
+/*-
+ * Copyright (c)1999 Citrus Project,
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	citrus Id: wcscspn.c,v 1.1 1999/12/29 21:47:45 tshiozak Exp
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: wcscspn.c,v 1.2 2001/01/03 14:29:36 lukem Exp $");
+#endif /* LIBC_SCCS and not lint */
+
+#include <assert.h>
+#include <wchar.h>
+
+size_t
+wcscspn(s, set)
+	const wchar_t *s;
+	const wchar_t *set;
+{
+	const wchar_t *p;
+	const wchar_t *q;
+
+	_DIAGASSERT(s != NULL);
+	_DIAGASSERT(set != NULL);
+
+	p = s;
+	while (*p) {
+		q = set;
+		while (*q) {
+			if (*p == *q)
+				goto done;
+			q++;
+		}
+		p++;
+	}
+
+done:
+	return (p - s);
+}

lib/nbsd_libc/string/wcsdup.3

@@ -0,0 +1,87 @@
+.\"	$NetBSD: wcsdup.3,v 1.3 2010/12/16 17:42:28 wiz Exp $
+.\"
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)strdup.3	8.1 (Berkeley) 6/9/93
+.\"
+.Dd August 25, 2006
+.Dt WCSDUP 3
+.Os
+.Sh NAME
+.Nm wcsdup
+.Nd save a copy of a string
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In wchar.h
+.Ft wchar_t *
+.Fn wcsdup "const wchar_t *str"
+.Sh DESCRIPTION
+The
+.Fn wcsdup
+function
+allocates sufficient memory for a copy
+of the wide-character string
+.Fa str ,
+does the copy, and returns a pointer to it.
+The pointer may subsequently be used as an
+argument to the function
+.Xr free 3 .
+.Pp
+If insufficient memory is available,
+.Dv NULL
+is returned.
+.Sh EXAMPLES
+The following will point
+.Va p
+to an allocated area of memory containing the nul-terminated string
+.Qq foobar :
+.Bd -literal -offset indent
+wchar_t *p;
+
+if (p = wcsdup(L"foobar"), p == NULL) {
+	fprintf(stderr, "Out of memory.\en");
+	exit(1);
+}
+.Ed
+.Sh ERRORS
+The
+.Fn wcsdup
+function may fail and set the external variable
+.Va errno
+for any of the errors specified for the library function
+.Xr malloc 3 .
+.Sh SEE ALSO
+.Xr free 3 ,
+.Xr malloc 3 ,
+.Xr strdup 3
+.Sh HISTORY
+The
+.Fn wcsdup
+function first appeared in
+.Nx 4.0 .