busybox/coreutils/touch.c

/* vi: set sw=4 ts=4: */
/*
 * Mini touch implementation for busybox
 *
 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
 *
 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
 */

/* 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 = getopt32(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;
}
1	/* vi: set sw=4 ts=4: */
2	/*
3	* Mini touch implementation for busybox
4	*
5	* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
6	*
7	* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
8	*/
9
10	/* BB_AUDIT SUSv3 _NOT_ compliant -- options -a, -m, -r, -t not supported. */
11	/* http://www.opengroup.org/onlinepubs/007904975/utilities/touch.html */
12
13	/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
14	*
15	* Previous version called open() and then utime(). While this will be
16	* be necessary to implement -r and -t, it currently only makes things bigger.
17	* Also, exiting on a failure was a bug. All args should be processed.
18	*/
19
20	#include <stdio.h>
21	#include <sys/types.h>
22	#include <fcntl.h>
23	#include <utime.h>
24	#include <errno.h>
25	#include <unistd.h>
26	#include <stdlib.h>
27	#include "busybox.h"
28
29	int touch_main(int argc, char **argv)
30	{
31	int fd;
32	int flags;
33	int status = EXIT_SUCCESS;
34
35	flags = getopt32(argc, argv, "c");
36
37	argv += optind;
38
39	if (!*argv) {
40	bb_show_usage();
41	}
42
43	do {
44	if (utime(*argv, NULL)) {
45	if (errno == ENOENT) { /* no such file*/
46	if (flags & 1) { /* Creation is disabled, so ignore. */
47	continue;
48	}
49	/* Try to create the file. */
50	fd = open(*argv, O_RDWR \| O_CREAT,
51	S_IRUSR \| S_IWUSR \| S_IRGRP \| S_IWGRP \| S_IROTH \| S_IWOTH
52	);
53	if ((fd >= 0) && !close(fd)) {
54	continue;
55	}
56	}
57	status = EXIT_FAILURE;
58	bb_perror_msg("%s", *argv);
59	}
60	} while (*++argv);
61
62	return status;
63	}