diff options
Diffstat (limited to 'busybox/coreutils/touch.c')
-rw-r--r-- | busybox/coreutils/touch.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/busybox/coreutils/touch.c b/busybox/coreutils/touch.c new file mode 100644 index 000000000..645fb2174 --- /dev/null +++ b/busybox/coreutils/touch.c | |||
@@ -0,0 +1,76 @@ | |||
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 | |||
42 | extern int 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 | } | ||