source: branches/2.2.2/mindi-busybox/coreutils/touch.c @ 1247

Last change on this file since 1247 was 821, checked in by Bruno Cornec, 14 years ago

Addition of busybox 1.2.1 as a mindi-busybox new package
This should avoid delivering binary files in mindi not built there (Fedora and Debian are quite serious about that)

File size: 2.1 KB
Line 
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 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 */
22
23/* BB_AUDIT SUSv3 _NOT_ compliant -- options -a, -m, -r, -t not supported. */
24/* http://www.opengroup.org/onlinepubs/007904975/utilities/touch.html */
25
26/* Mar 16, 2003      Manuel Novoa III   (mjn3@codepoet.org)
27 *
28 * Previous version called open() and then utime().  While this will be
29 * be necessary to implement -r and -t, it currently only makes things bigger.
30 * Also, exiting on a failure was a bug.  All args should be processed.
31 */
32
33#include <stdio.h>
34#include <sys/types.h>
35#include <fcntl.h>
36#include <utime.h>
37#include <errno.h>
38#include <unistd.h>
39#include <stdlib.h>
40#include "busybox.h"
41
42int touch_main(int argc, char **argv)
43{
44    int fd;
45    int flags;
46    int status = EXIT_SUCCESS;
47
48    flags = bb_getopt_ulflags(argc, argv, "c");
49
50    argv += optind;
51
52    if (!*argv) {
53        bb_show_usage();
54    }
55
56    do {
57        if (utime(*argv, NULL)) {
58            if (errno == ENOENT) {  /* no such file*/
59                if (flags & 1) {    /* Creation is disabled, so ignore. */
60                    continue;
61                }
62                /* Try to create the file. */
63                fd = open(*argv, O_RDWR | O_CREAT,
64                          S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH
65                          );
66                if ((fd >= 0) && !close(fd)) {
67                    continue;
68                }
69            }
70            status = EXIT_FAILURE;
71            bb_perror_msg("%s", *argv);
72        }
73    } while (*++argv);
74
75    return status;
76}
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