79 lines
2.2 KiB
Plaintext
79 lines
2.2 KiB
Plaintext
$NetBSD: patch-am,v 1.1.1.1 2010/12/06 17:01:23 adam Exp $
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Add support for "passwd expand gecos".
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--- lib/util_pw.c.orig 2010-01-14 10:12:10.000000000 +0000
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+++ lib/util_pw.c
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@@ -4,6 +4,7 @@
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Safe versions of getpw* calls
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Copyright (C) Andrew Bartlett 2002
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+ Copyright (C) Luke Mewburn 2004
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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@@ -21,9 +22,12 @@
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#include "includes.h"
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+static char *passwd_expand_gecos(const struct passwd *);
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+
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struct passwd *tcopy_passwd(TALLOC_CTX *mem_ctx, const struct passwd *from)
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{
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struct passwd *ret = TALLOC_P(mem_ctx, struct passwd);
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+ char *gecos;
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if (!ret) {
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return NULL;
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}
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@@ -31,7 +35,10 @@ struct passwd *tcopy_passwd(TALLOC_CTX *
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ret->pw_passwd = talloc_strdup(ret, from->pw_passwd);
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ret->pw_uid = from->pw_uid;
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ret->pw_gid = from->pw_gid;
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- ret->pw_gecos = talloc_strdup(ret, from->pw_gecos);
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+ gecos = (from->pw_gecos != NULL) ? passwd_expand_gecos(from) : NULL;
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+ ret->pw_gecos = talloc_strdup(ret, gecos);
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+ if (gecos != NULL)
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+ SAFE_FREE(gecos);
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ret->pw_dir = talloc_strdup(ret, from->pw_dir);
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ret->pw_shell = talloc_strdup(ret, from->pw_shell);
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return ret;
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@@ -85,3 +92,38 @@ struct passwd *getpwuid_alloc(TALLOC_CTX
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return tcopy_passwd(mem_ctx, temp);
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}
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+
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+
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+/****************************************************************
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+ Expand any `&' characters in pw_gecos with a capitalized pw_name.
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+****************************************************************/
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+
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+static char *passwd_expand_gecos(const struct passwd *pw)
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+{
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+ char *p, *bp, *buf;
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+ size_t ac, buflen;
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+
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+ if (!lp_passwd_expand_gecos()) {
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+ return smb_xstrdup(pw->pw_gecos);
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+ }
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+
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+ ac = 0;
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+ /* count number of `&' in pw_gecos */
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+ for (p = pw->pw_gecos; *p; p++) {
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+ if (*p == '&')
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+ ac++;
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+ }
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+ buflen = strlen(pw->pw_gecos) + (ac * (strlen(pw->pw_name) - 1)) + 1;
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+ buf = smb_xmalloc_array(sizeof(char), buflen);
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+ bp = buf;
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+ for (p = pw->pw_gecos; *p; p++) {
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+ if (*p == '&') { /* replace & with capitalized pw_name */
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+ ac = snprintf(bp, buflen - (bp - buf),
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+ "%s", pw->pw_name);
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+ *bp = toupper((unsigned char)*bp);
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+ bp += ac;
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+ } else
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+ *bp++ = *p;
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+ }
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+ return buf;
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+}
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