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commands: id from netbsd; touch from bsd-utils port

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This commit is contained in:
Ben Gras
2010-06-25 17:14:56 +00:00
parent bfeecdbf62
commit 373aecf3cd
10 changed files with 1165 additions and 2 deletions
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commands/touch/Makefile Normal file
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# $NetBSD: Makefile,v 1.3 1994/12/07 09:19:47 jtc Exp $
# @(#)Makefile 8.1 (Berkeley) 6/6/93
PROG= touch
.include <minix.prog.mk>

163
commands/touch/touch.1 Normal file
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.\" $OpenBSD: touch.1,v 1.14 2007/08/06 19:16:06 sobrado Exp $
.\" $NetBSD: touch.1,v 1.8 1995/08/31 22:10:05 jtc Exp $
.\"
.\" Copyright (c) 1991, 1993
.\" The Regents of the University of California. All rights reserved.
.\"
.\" This code is derived from software contributed to Berkeley by
.\" the Institute of Electrical and Electronics Engineers, Inc.
.\"
.\" 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.
.\"
.\" @(#)touch.1 8.3 (Berkeley) 4/28/95
.\"
.Dd $Mdocdate: August 6 2007 $
.Dt TOUCH 1
.Os
.Sh NAME
.Nm touch
.Nd change file access and modification times
.Sh SYNOPSIS
.Nm touch
.Op Fl acm
.Op Fl r Ar file
.Op Fl t Ar [[CC]YY]MMDDhhmm[.SS]
.Ar
.Sh DESCRIPTION
The
.Nm
utility sets the modification and access times of files to the
current time of day.
If the file doesn't exist, it is created with default permissions.
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Fl a
Change the access time of the file.
The modification time of the file is not changed unless the
.Fl m
flag is also specified.
.It Fl c
Do not create the file if it does not exist.
The
.Nm
utility does not treat this as an error.
No error messages are displayed and the exit value is not affected.
.It Fl m
Change the modification time of the file.
The access time of the file is not changed unless the
.Fl a
flag is also specified.
.It Fl r Ar file
Use the access and modification times from the specified file
instead of the current time of day.
.It Fl t Ar [[CC]YY]MMDDhhmm[.SS]
Change the access and modification times to the specified time.
The argument should be in the form
.Dq [[CC]YY]MMDDhhmm[.SS]
where each pair of letters represents the following:
.Pp
.Bl -tag -width Ds -compact -offset indent
.It Ar CC
The first two digits of the year (the century).
.It Ar YY
The second two digits of the year.
If
.Dq YY
is specified, but
.Dq CC
is not, a value for
.Dq YY
between 69 and 99 results in a
.Dq CC
value of 19.
Otherwise, a
.Dq CC
value of 20 is used.
.It Ar MM
The month of the year, from 1 to 12.
.It Ar DD
The day of the month, from 1 to 31.
.It Ar hh
The hour of the day, from 0 to 23.
.It Ar mm
The minute of the hour, from 0 to 59.
.It Ar SS
The second of the minute, from 0 to 61.
.El
.Pp
If the
.Dq CC
and
.Dq YY
letter pairs are not specified, the values default to the current
year.
If the
.Dq SS
letter pair is not specified, the value defaults to 0.
.El
.Pp
The
.Nm
utility exits 0 on success or >0 if an error occurred.
.Sh SEE ALSO
.Xr utimes 2
.Sh STANDARDS
The
.Nm
utility is compliant with the
.St -p1003.1-2004
specification.
.Pp
The obsolescent form of
.Nm touch ,
where a time format is specified as the first argument, is supported.
When no
.Fl r
or
.Fl t
option is specified, there are at least two arguments, and the first
argument is a string of digits either eight or ten characters in length,
the first argument is interpreted as a time specification of the form
.Dq MMDDhhmm[YY] .
.Pp
The
.Dq MM ,
.Dq DD ,
.Dq hh
and
.Dq mm
letter pairs are treated as their counterparts specified to the
.Fl t
option.
If the
.Dq YY
letter pair is in the range 69 to 99, the year is set from 1969 to 1999;
otherwise, the year is set in the 21st century.
.Sh HISTORY
A
.Nm
utility appeared in
.At v7 .

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/* $OpenBSD: touch.c,v 1.17 2007/08/06 19:16:06 sobrado Exp $ */
/* $NetBSD: touch.c,v 1.11 1995/08/31 22:10:06 jtc Exp $ */
/*
* Copyright (c) 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/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <locale.h>
#include <time.h>
#include <utime.h>
#include <tzfile.h>
#include <unistd.h>
void stime_arg1(char *, struct timeval *);
void stime_arg2(char *, int, struct timeval *);
void stime_file(char *, struct timeval *);
__dead void usage(void);
char * __progname;
int
main(int argc, char *argv[])
{
struct stat sb;
struct timeval tv[2];
struct utimbuf timbuf;
int aflag, cflag, mflag, ch, fd, len, rval, timeset;
char *p;
(void)setlocale(LC_ALL, "");
__progname = argv[0];
aflag = cflag = mflag = timeset = 0;
if (gettimeofday(&tv[0], NULL))
err(1, "gettimeofday");
while ((ch = getopt(argc, argv, "acfmr:t:")) != -1)
switch (ch) {
case 'a':
aflag = 1;
break;
case 'c':
cflag = 1;
break;
case 'f':
break;
case 'm':
mflag = 1;
break;
case 'r':
timeset = 1;
stime_file(optarg, tv);
break;
case 't':
timeset = 1;
stime_arg1(optarg, tv);
break;
default:
usage();
}
argc -= optind;
argv += optind;
/* Default is both -a and -m. */
if (aflag == 0 && mflag == 0)
aflag = mflag = 1;
/*
* If no -r or -t flag, at least two operands, the first of which
* is an 8 or 10 digit number, use the obsolete time specification.
*/
if (!timeset && argc > 1) {
(void)strtol(argv[0], &p, 10);
len = p - argv[0];
if (*p == '\0' && (len == 8 || len == 10)) {
timeset = 1;
stime_arg2(*argv++, len == 10, tv);
}
}
/* Otherwise use the current time of day. */
if (!timeset)
tv[1] = tv[0];
if (*argv == NULL)
usage();
for (rval = 0; *argv; ++argv) {
/* See if the file exists. */
if (stat(*argv, &sb)) {
if (!cflag) {
/* Create the file. */
fd = open(*argv,
O_WRONLY | O_CREAT, DEFFILEMODE);
if (fd == -1 || fstat(fd, &sb) || close(fd)) {
rval = 1;
warn("%s", *argv);
continue;
}
/* If using the current time, we're done. */
if (!timeset)
continue;
} else
continue;
}
#if 0
if (!aflag)
TIMESPEC_TO_TIMEVAL(&tv[0], &sb.st_atimespec);
if (!mflag)
TIMESPEC_TO_TIMEVAL(&tv[1], &sb.st_mtimespec);
#else
if (!aflag)
tv[0].tv_sec = sb.st_atime;
if (!mflag)
tv[1].tv_sec = sb.st_mtime;
#endif
/* Try utimes(2). */
#if 0
if (!utimes(*argv, tv))
continue;
#else
timbuf.actime = tv[0].tv_sec;
timbuf.modtime = tv[1].tv_sec;
if (!utime(*argv, &timbuf))
continue;
#endif
/* If the user specified a time, nothing else we can do. */
if (timeset) {
rval = 1;
warn("%s", *argv);
}
/*
* System V and POSIX 1003.1 require that a NULL argument
* set the access/modification times to the current time.
* The permission checks are different, too, in that the
* ability to write the file is sufficient. Take a shot.
*/
#if 0
if (!utimes(*argv, NULL))
continue;
#else
if (!utime(*argv, NULL))
continue;
#endif
rval = 1;
warn("%s", *argv);
}
exit(rval);
}
#define ATOI2(s) ((s) += 2, ((s)[-2] - '0') * 10 + ((s)[-1] - '0'))
void
stime_arg1(char *arg, struct timeval *tvp)
{
struct tm *lt;
time_t tmptime;
int yearset;
char *dot, *p;
/* Start with the current time. */
tmptime = tvp[0].tv_sec;
if ((lt = localtime(&tmptime)) == NULL)
err(1, "localtime");
/* [[CC]YY]MMDDhhmm[.SS] */
for (p = arg, dot = NULL; *p != '\0'; p++) {
if (*p == '.' && dot == NULL)
dot = p;
else if (!isdigit((unsigned char)*p))
goto terr;
}
if (dot == NULL)
lt->tm_sec = 0; /* Seconds defaults to 0. */
else {
*dot++ = '\0';
if (strlen(dot) != 2)
goto terr;
lt->tm_sec = ATOI2(dot);
if (lt->tm_sec > 61) /* Could be leap second. */
goto terr;
}
yearset = 0;
switch (strlen(arg)) {
case 12: /* CCYYMMDDhhmm */
lt->tm_year = ATOI2(arg) * 100 - TM_YEAR_BASE;
yearset = 1;
/* FALLTHROUGH */
case 10: /* YYMMDDhhmm */
if (yearset) {
yearset = ATOI2(arg);
lt->tm_year += yearset;
} else {
yearset = ATOI2(arg);
/* Preserve current century. */
lt->tm_year = ((lt->tm_year / 100) * 100) + yearset;
}
/* FALLTHROUGH */
case 8: /* MMDDhhmm */
lt->tm_mon = ATOI2(arg);
if (lt->tm_mon > 12 || lt->tm_mon == 0)
goto terr;
--lt->tm_mon; /* Convert from 01-12 to 00-11 */
lt->tm_mday = ATOI2(arg);
if (lt->tm_mday > 31 || lt->tm_mday == 0)
goto terr;
lt->tm_hour = ATOI2(arg);
if (lt->tm_hour > 23)
goto terr;
lt->tm_min = ATOI2(arg);
if (lt->tm_min > 59)
goto terr;
break;
default:
goto terr;
}
lt->tm_isdst = -1; /* Figure out DST. */
tvp[0].tv_sec = tvp[1].tv_sec = mktime(lt);
if (tvp[0].tv_sec == -1)
terr: errx(1,
"out of range or illegal time specification: [[CC]YY]MMDDhhmm[.SS]");
tvp[0].tv_usec = tvp[1].tv_usec = 0;
}
void
stime_arg2(char *arg, int year, struct timeval *tvp)
{
struct tm *lt;
time_t tmptime;
/* Start with the current time. */
tmptime = tvp[0].tv_sec;
if ((lt = localtime(&tmptime)) == NULL)
err(1, "localtime");
lt->tm_mon = ATOI2(arg); /* MMDDhhmm[YY] */
if (lt->tm_mon > 12 || lt->tm_mon == 0)
goto terr;
--lt->tm_mon; /* Convert from 01-12 to 00-11 */
lt->tm_mday = ATOI2(arg);
if (lt->tm_mday > 31 || lt->tm_mday == 0)
goto terr;
lt->tm_hour = ATOI2(arg);
if (lt->tm_hour > 23)
goto terr;
lt->tm_min = ATOI2(arg);
if (lt->tm_min > 59)
goto terr;
if (year) {
year = ATOI2(arg); /* Preserve current century. */
lt->tm_year = ((lt->tm_year / 100) * 100) + year;
}
lt->tm_sec = 0;
lt->tm_isdst = -1; /* Figure out DST. */
tvp[0].tv_sec = tvp[1].tv_sec = mktime(lt);
if (tvp[0].tv_sec == -1)
terr: errx(1,
"out of range or illegal time specification: MMDDhhmm[YY]");
tvp[0].tv_usec = tvp[1].tv_usec = 0;
}
void
stime_file(char *fname, struct timeval *tvp)
{
struct stat sb;
if (stat(fname, &sb))
err(1, "%s", fname);
#if 0
TIMESPEC_TO_TIMEVAL(tvp, &sb.st_atimespec);
TIMESPEC_TO_TIMEVAL(tvp + 1, &sb.st_mtimespec);
#else
(tvp + 0)->tv_sec = sb.st_atime;
(tvp + 1)->tv_sec = sb.st_mtime;
#endif
}
__dead void
usage(void)
{
extern char *__progname;
(void)fprintf(stderr,
"usage: %s [-acm] [-r file] [-t [[CC]YY]MMDDhhmm[.SS]] file ...\n",
__progname);
exit(1);
}

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commands/touch/touch.d Normal file
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touch.o: /usr/include/ansi.h
touch.o: /usr/include/ctype.h
touch.o: /usr/include/err.h
touch.o: /usr/include/errno.h
touch.o: /usr/include/fcntl.h
touch.o: /usr/include/limits.h
touch.o: /usr/include/locale.h
touch.o: /usr/include/machine/interrupt.h
touch.o: /usr/include/minix/config.h
touch.o: /usr/include/minix/dir.h
touch.o: /usr/include/minix/limits.h
touch.o: /usr/include/minix/sys_config.h
touch.o: /usr/include/minix/type.h
touch.o: /usr/include/minix/types.h
touch.o: /usr/include/stdarg.h
touch.o: /usr/include/stdint.h
touch.o: /usr/include/stdio.h
touch.o: /usr/include/stdlib.h
touch.o: /usr/include/string.h
touch.o: /usr/include/sys/cdefs.h
touch.o: /usr/include/sys/select.h
touch.o: /usr/include/sys/stat.h
touch.o: /usr/include/sys/time.h
touch.o: /usr/include/sys/types.h
touch.o: /usr/include/time.h
touch.o: /usr/include/tzfile.h
touch.o: /usr/include/unistd.h
touch.o: /usr/include/utime.h
touch.o: touch.c