1994-05-27 12:33:43 +00:00
|
|
|
/*
|
|
|
|
* Copyright (c) 1993
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|
|
* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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|
|
* modification, are permitted provided that the following conditions
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* are met:
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|
* 1. Redistributions of source code must retain the above copyright
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|
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* notice, this list of conditions and the following disclaimer.
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|
* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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|
|
* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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|
* This product includes software developed by the University of
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|
|
* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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2001-12-11 23:38:24 +00:00
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#include <sys/cdefs.h>
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|
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|
|
|
|
__FBSDID("$FreeBSD$");
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|
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|
1994-05-27 12:33:43 +00:00
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|
|
#ifndef lint
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2001-05-26 22:39:33 +00:00
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|
static const char copyright[] =
|
1994-05-27 12:33:43 +00:00
|
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|
"@(#) Copyright (c) 1993\n\
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|
|
The Regents of the University of California. All rights reserved.\n";
|
2001-12-11 23:38:24 +00:00
|
|
|
#endif
|
1994-05-27 12:33:43 +00:00
|
|
|
|
|
|
|
#ifndef lint
|
2001-05-26 22:39:33 +00:00
|
|
|
static const char sccsid[] = "@(#)touch.c 8.1 (Berkeley) 6/6/93";
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|
|
#endif
|
1994-05-27 12:33:43 +00:00
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|
|
|
|
|
#include <sys/types.h>
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|
|
#include <sys/stat.h>
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|
|
#include <sys/time.h>
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|
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|
|
|
#include <err.h>
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|
|
#include <errno.h>
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|
|
#include <fcntl.h>
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|
|
#include <stdio.h>
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|
|
#include <stdlib.h>
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|
|
#include <string.h>
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|
|
#include <time.h>
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|
|
#include <unistd.h>
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|
|
|
2002-03-22 01:42:45 +00:00
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|
|
int rw(char *, struct stat *, int);
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|
|
void stime_arg1(char *, struct timeval *);
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|
|
void stime_arg2(char *, int, struct timeval *);
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|
|
void stime_file(char *, struct timeval *);
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|
|
void usage(void);
|
1994-05-27 12:33:43 +00:00
|
|
|
|
|
|
|
int
|
2002-09-04 23:29:10 +00:00
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|
|
main(int argc, char *argv[])
|
1994-05-27 12:33:43 +00:00
|
|
|
{
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|
|
struct stat sb;
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|
|
struct timeval tv[2];
|
2001-09-22 18:45:03 +00:00
|
|
|
int (*stat_f)(const char *, struct stat *);
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|
|
int (*utimes_f)(const char *, const struct timeval *);
|
1994-05-27 12:33:43 +00:00
|
|
|
int aflag, cflag, fflag, mflag, ch, fd, len, rval, timeset;
|
|
|
|
char *p;
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|
|
|
|
|
|
aflag = cflag = fflag = mflag = timeset = 0;
|
2001-09-22 18:45:03 +00:00
|
|
|
stat_f = stat;
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|
|
|
utimes_f = utimes;
|
1994-05-27 12:33:43 +00:00
|
|
|
if (gettimeofday(&tv[0], NULL))
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|
|
|
err(1, "gettimeofday");
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|
|
|
|
2001-09-22 18:45:03 +00:00
|
|
|
while ((ch = getopt(argc, argv, "acfhmr:t:")) != -1)
|
1994-05-27 12:33:43 +00:00
|
|
|
switch(ch) {
|
|
|
|
case 'a':
|
|
|
|
aflag = 1;
|
|
|
|
break;
|
|
|
|
case 'c':
|
|
|
|
cflag = 1;
|
|
|
|
break;
|
|
|
|
case 'f':
|
|
|
|
fflag = 1;
|
|
|
|
break;
|
2001-09-22 18:45:03 +00:00
|
|
|
case 'h':
|
|
|
|
cflag = 1;
|
|
|
|
stat_f = lstat;
|
|
|
|
utimes_f = lutimes;
|
|
|
|
break;
|
1994-05-27 12:33:43 +00:00
|
|
|
case 'm':
|
|
|
|
mflag = 1;
|
|
|
|
break;
|
|
|
|
case 'r':
|
|
|
|
timeset = 1;
|
|
|
|
stime_file(optarg, tv);
|
|
|
|
break;
|
|
|
|
case 't':
|
|
|
|
timeset = 1;
|
|
|
|
stime_arg1(optarg, tv);
|
|
|
|
break;
|
|
|
|
case '?':
|
|
|
|
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. */
|
2001-09-22 18:45:03 +00:00
|
|
|
if (stat_f(*argv, &sb) != 0) {
|
1994-05-27 12:33:43 +00:00
|
|
|
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;
|
1999-07-04 17:26:16 +00:00
|
|
|
}
|
1994-05-27 12:33:43 +00:00
|
|
|
|
|
|
|
if (!aflag)
|
|
|
|
TIMESPEC_TO_TIMEVAL(&tv[0], &sb.st_atimespec);
|
|
|
|
if (!mflag)
|
|
|
|
TIMESPEC_TO_TIMEVAL(&tv[1], &sb.st_mtimespec);
|
|
|
|
|
|
|
|
/* Try utimes(2). */
|
2001-09-22 18:45:03 +00:00
|
|
|
if (!utimes_f(*argv, tv))
|
1994-05-27 12:33:43 +00:00
|
|
|
continue;
|
|
|
|
|
|
|
|
/* If the user specified a time, nothing else we can do. */
|
|
|
|
if (timeset) {
|
|
|
|
rval = 1;
|
|
|
|
warn("%s", *argv);
|
2006-01-31 18:02:56 +00:00
|
|
|
continue;
|
1994-05-27 12:33:43 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 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.
|
|
|
|
*/
|
2001-09-22 18:45:03 +00:00
|
|
|
if (!utimes_f(*argv, NULL))
|
1994-05-27 12:33:43 +00:00
|
|
|
continue;
|
|
|
|
|
|
|
|
/* Try reading/writing. */
|
2002-07-23 04:54:57 +00:00
|
|
|
if (!S_ISLNK(sb.st_mode) && !S_ISDIR(sb.st_mode) &&
|
|
|
|
rw(*argv, &sb, fflag))
|
1994-05-27 12:33:43 +00:00
|
|
|
rval = 1;
|
2002-07-23 04:54:57 +00:00
|
|
|
else
|
|
|
|
warn("%s", *argv);
|
1994-05-27 12:33:43 +00:00
|
|
|
}
|
|
|
|
exit(rval);
|
|
|
|
}
|
|
|
|
|
|
|
|
#define ATOI2(ar) ((ar)[0] - '0') * 10 + ((ar)[1] - '0'); (ar) += 2;
|
|
|
|
|
|
|
|
void
|
2002-09-04 23:29:10 +00:00
|
|
|
stime_arg1(char *arg, struct timeval *tvp)
|
1994-05-27 12:33:43 +00:00
|
|
|
{
|
1998-06-29 15:52:49 +00:00
|
|
|
time_t now;
|
1994-05-27 12:33:43 +00:00
|
|
|
struct tm *t;
|
|
|
|
int yearset;
|
|
|
|
char *p;
|
|
|
|
/* Start with the current time. */
|
1998-06-29 15:52:49 +00:00
|
|
|
now = tvp[0].tv_sec;
|
|
|
|
if ((t = localtime(&now)) == NULL)
|
1994-05-27 12:33:43 +00:00
|
|
|
err(1, "localtime");
|
|
|
|
/* [[CC]YY]MMDDhhmm[.SS] */
|
|
|
|
if ((p = strchr(arg, '.')) == NULL)
|
|
|
|
t->tm_sec = 0; /* Seconds defaults to 0. */
|
|
|
|
else {
|
|
|
|
if (strlen(p + 1) != 2)
|
|
|
|
goto terr;
|
|
|
|
*p++ = '\0';
|
|
|
|
t->tm_sec = ATOI2(p);
|
|
|
|
}
|
1995-05-30 06:41:30 +00:00
|
|
|
|
1994-05-27 12:33:43 +00:00
|
|
|
yearset = 0;
|
|
|
|
switch(strlen(arg)) {
|
|
|
|
case 12: /* CCYYMMDDhhmm */
|
|
|
|
t->tm_year = ATOI2(arg);
|
1995-07-08 16:47:47 +00:00
|
|
|
t->tm_year *= 100;
|
1994-05-27 12:33:43 +00:00
|
|
|
yearset = 1;
|
2002-08-25 13:23:09 +00:00
|
|
|
/* FALLTHROUGH */
|
1994-05-27 12:33:43 +00:00
|
|
|
case 10: /* YYMMDDhhmm */
|
|
|
|
if (yearset) {
|
|
|
|
yearset = ATOI2(arg);
|
|
|
|
t->tm_year += yearset;
|
|
|
|
} else {
|
|
|
|
yearset = ATOI2(arg);
|
|
|
|
if (yearset < 69)
|
|
|
|
t->tm_year = yearset + 2000;
|
|
|
|
else
|
|
|
|
t->tm_year = yearset + 1900;
|
|
|
|
}
|
|
|
|
t->tm_year -= 1900; /* Convert to UNIX time. */
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
case 8: /* MMDDhhmm */
|
|
|
|
t->tm_mon = ATOI2(arg);
|
|
|
|
--t->tm_mon; /* Convert from 01-12 to 00-11 */
|
|
|
|
t->tm_mday = ATOI2(arg);
|
|
|
|
t->tm_hour = ATOI2(arg);
|
|
|
|
t->tm_min = ATOI2(arg);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
goto terr;
|
|
|
|
}
|
|
|
|
|
|
|
|
t->tm_isdst = -1; /* Figure out DST. */
|
|
|
|
tvp[0].tv_sec = tvp[1].tv_sec = mktime(t);
|
|
|
|
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
|
2002-09-04 23:29:10 +00:00
|
|
|
stime_arg2(char *arg, int year, struct timeval *tvp)
|
1994-05-27 12:33:43 +00:00
|
|
|
{
|
1998-06-29 15:52:49 +00:00
|
|
|
time_t now;
|
1994-05-27 12:33:43 +00:00
|
|
|
struct tm *t;
|
|
|
|
/* Start with the current time. */
|
1998-06-29 15:52:49 +00:00
|
|
|
now = tvp[0].tv_sec;
|
|
|
|
if ((t = localtime(&now)) == NULL)
|
1994-05-27 12:33:43 +00:00
|
|
|
err(1, "localtime");
|
|
|
|
|
|
|
|
t->tm_mon = ATOI2(arg); /* MMDDhhmm[yy] */
|
|
|
|
--t->tm_mon; /* Convert from 01-12 to 00-11 */
|
|
|
|
t->tm_mday = ATOI2(arg);
|
|
|
|
t->tm_hour = ATOI2(arg);
|
|
|
|
t->tm_min = ATOI2(arg);
|
1999-01-05 09:58:02 +00:00
|
|
|
if (year) {
|
1994-05-27 12:33:43 +00:00
|
|
|
t->tm_year = ATOI2(arg);
|
1999-01-05 10:13:54 +00:00
|
|
|
if (t->tm_year < 39) /* support 2000-2038 not 1902-1969 */
|
1999-01-05 09:58:02 +00:00
|
|
|
t->tm_year += 100;
|
|
|
|
}
|
1994-05-27 12:33:43 +00:00
|
|
|
|
|
|
|
t->tm_isdst = -1; /* Figure out DST. */
|
|
|
|
tvp[0].tv_sec = tvp[1].tv_sec = mktime(t);
|
|
|
|
if (tvp[0].tv_sec == -1)
|
|
|
|
errx(1,
|
|
|
|
"out of range or illegal time specification: MMDDhhmm[yy]");
|
|
|
|
|
|
|
|
tvp[0].tv_usec = tvp[1].tv_usec = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
2002-09-04 23:29:10 +00:00
|
|
|
stime_file(char *fname, struct timeval *tvp)
|
1994-05-27 12:33:43 +00:00
|
|
|
{
|
|
|
|
struct stat sb;
|
|
|
|
|
|
|
|
if (stat(fname, &sb))
|
|
|
|
err(1, "%s", fname);
|
|
|
|
TIMESPEC_TO_TIMEVAL(tvp, &sb.st_atimespec);
|
|
|
|
TIMESPEC_TO_TIMEVAL(tvp + 1, &sb.st_mtimespec);
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
2002-09-04 23:29:10 +00:00
|
|
|
rw(char *fname, struct stat *sbp, int force)
|
1994-05-27 12:33:43 +00:00
|
|
|
{
|
|
|
|
int fd, needed_chmod, rval;
|
|
|
|
u_char byte;
|
|
|
|
|
2002-07-23 04:54:57 +00:00
|
|
|
/* Try regular files. */
|
|
|
|
if (!S_ISREG(sbp->st_mode)) {
|
1994-05-27 12:33:43 +00:00
|
|
|
warnx("%s: %s", fname, strerror(EFTYPE));
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
|
|
|
|
needed_chmod = rval = 0;
|
|
|
|
if ((fd = open(fname, O_RDWR, 0)) == -1) {
|
|
|
|
if (!force || chmod(fname, DEFFILEMODE))
|
|
|
|
goto err;
|
|
|
|
if ((fd = open(fname, O_RDWR, 0)) == -1)
|
|
|
|
goto err;
|
|
|
|
needed_chmod = 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (sbp->st_size != 0) {
|
|
|
|
if (read(fd, &byte, sizeof(byte)) != sizeof(byte))
|
|
|
|
goto err;
|
|
|
|
if (lseek(fd, (off_t)0, SEEK_SET) == -1)
|
|
|
|
goto err;
|
|
|
|
if (write(fd, &byte, sizeof(byte)) != sizeof(byte))
|
|
|
|
goto err;
|
|
|
|
} else {
|
|
|
|
if (write(fd, &byte, sizeof(byte)) != sizeof(byte)) {
|
|
|
|
err: rval = 1;
|
|
|
|
warn("%s", fname);
|
|
|
|
} else if (ftruncate(fd, (off_t)0)) {
|
|
|
|
rval = 1;
|
|
|
|
warn("%s: file modified", fname);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (close(fd) && rval != 1) {
|
|
|
|
rval = 1;
|
|
|
|
warn("%s", fname);
|
|
|
|
}
|
|
|
|
if (needed_chmod && chmod(fname, sbp->st_mode) && rval != 1) {
|
|
|
|
rval = 1;
|
|
|
|
warn("%s: permissions modified", fname);
|
|
|
|
}
|
|
|
|
return (rval);
|
|
|
|
}
|
|
|
|
|
1996-09-14 03:00:32 +00:00
|
|
|
void
|
2002-09-04 23:29:10 +00:00
|
|
|
usage(void)
|
1994-05-27 12:33:43 +00:00
|
|
|
{
|
2001-09-22 18:45:03 +00:00
|
|
|
(void)fprintf(stderr, "usage: touch [-acfhm] [-r file] [-t [[CC]YY]MMDDhhmm[.SS]] file ...\n");
|
1994-05-27 12:33:43 +00:00
|
|
|
exit(1);
|
|
|
|
}
|