Contents of /trunk/mkinitrd-magellan/busybox/coreutils/touch.c
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Sat Sep 1 22:45:15 2007 UTC (16 years, 9 months ago) by niro
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Sat Sep 1 22:45:15 2007 UTC (16 years, 9 months ago) by niro
File MIME type: text/plain
File size: 1485 byte(s)
-import if magellan mkinitrd; it is a fork of redhats mkinitrd-5.0.8 with all magellan patches and features; deprecates magellan-src/mkinitrd
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 | } |