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/* vi: set sw=4 ts=4: */
/*
* Mini touch implementation for busybox
*
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/* BB_AUDIT SUSv3 _NOT_ compliant -- options -a, -m, -r, -t not supported. */
/* http://www.opengroup.org/onlinepubs/007904975/utilities/touch.html */
/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
*
* Previous version called open() and then utime(). While this will be
* be necessary to implement -r and -t, it currently only makes things bigger.
* Also, exiting on a failure was a bug. All args should be processed.
*/
#include <stdio.h>
#include <sys/types.h>
#include <fcntl.h>
#include <utime.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include "busybox.h"
int touch_main(int argc, char **argv)
{
int fd;
int flags;
int status = EXIT_SUCCESS;
flags = bb_getopt_ulflags(argc, argv, "c");
argv += optind;
if (!*argv) {
bb_show_usage();
}
do {
if (utime(*argv, NULL)) {
if (errno == ENOENT) { /* no such file*/
if (flags & 1) { /* Creation is disabled, so ignore. */
continue;
}
/* Try to create the file. */
fd = open(*argv, O_RDWR | O_CREAT,
S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH
);
if ((fd >= 0) && !close(fd)) {
continue;
}
}
status = EXIT_FAILURE;
bb_perror_msg("%s", *argv);
}
} while (*++argv);
return status;
}
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