]> git.ipfire.org Git - thirdparty/xfsprogs-dev.git/blame - io/utimes.c
xfs_io: fix null pointer deref when complaining about scrub command
[thirdparty/xfsprogs-dev.git] / io / utimes.c
CommitLineData
8211d1b5
DD
1/*
2 * Copyright (c) 2016 Deepa Dinamani
3 * All Rights Reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19#include "command.h"
20#include "input.h"
21#include "init.h"
22#include "io.h"
23
24static cmdinfo_t utimes_cmd;
25
26static void
27utimes_help(void)
28{
29 printf(_(
30"\n"
31" Update file atime and mtime of the current file with nansecond precision.\n"
32"\n"
33" Usage: utimes atime_sec atime_nsec mtime_sec mtime_nsec.\n"
34" *_sec: Seconds elapsed since 1970-01-01 00:00:00 UTC.\n"
35" *_nsec: Nanoseconds since the corresponding *_sec.\n"
36"\n"));
37}
38
39static int
40utimes_f(
41 int argc,
42 char **argv)
43{
44 struct timespec t[2];
45 int result;
46
47 /* Get the timestamps */
48 result = timespec_from_string(argv[1], argv[2], &t[0]);
49 if (result) {
50 fprintf(stderr, "Bad value for atime\n");
51 return 0;
52 }
53 result = timespec_from_string(argv[3], argv[4], &t[1]);
54 if (result) {
55 fprintf(stderr, "Bad value for mtime\n");
56 return 0;
57 }
58
59 /* Call futimens to update time. */
60 if (futimens(file->fd, t)) {
61 perror("futimens");
62 return 0;
63 }
64
65 return 0;
66}
67
68void
69utimes_init(void)
70{
71 utimes_cmd.name = "utimes";
72 utimes_cmd.cfunc = utimes_f;
73 utimes_cmd.argmin = 4;
74 utimes_cmd.argmax = 4;
75 utimes_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
76 utimes_cmd.args = _("atime_sec atime_nsec mtime_sec mtime_nsec");
77 utimes_cmd.oneline = _("Update file times of the current file");
78 utimes_cmd.help = utimes_help;
79
80 add_command(&utimes_cmd);
81}