Last change
on this file since 3316 was 3232, checked in by Bruno Cornec, 11 years ago |
- Update mindi-busybox to 1.21.1
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-
Property svn:eol-style
set to
native
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File size:
1.1 KB
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1 | /* vi: set sw=4 ts=4: */
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2 | /*
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3 | * Mini fsync implementation for busybox
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4 | *
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5 | * Copyright (C) 2008 Nokia Corporation. All rights reserved.
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6 | *
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7 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
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8 | */
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9 |
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10 | //usage:#define fsync_trivial_usage
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11 | //usage: "[-d] FILE..."
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12 | //usage:#define fsync_full_usage "\n\n"
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13 | //usage: "Write files' buffered blocks to disk\n"
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14 | //usage: "\n -d Avoid syncing metadata"
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15 |
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16 | #include "libbb.h"
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17 | #ifndef O_NOATIME
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18 | # define O_NOATIME 0
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19 | #endif
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20 |
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21 | /* This is a NOFORK applet. Be very careful! */
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22 |
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23 | int fsync_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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24 | int fsync_main(int argc UNUSED_PARAM, char **argv)
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25 | {
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26 | int status;
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27 | int opts;
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28 |
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29 | opts = getopt32(argv, "d"); /* fdatasync */
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30 | argv += optind;
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31 | if (!*argv) {
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32 | bb_show_usage();
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33 | }
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34 |
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35 | status = EXIT_SUCCESS;
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36 | do {
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37 | int fd = open_or_warn(*argv, O_NOATIME | O_NOCTTY | O_RDONLY);
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38 |
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39 | if (fd == -1) {
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40 | status = EXIT_FAILURE;
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41 | continue;
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42 | }
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43 | if ((opts ? fdatasync(fd) : fsync(fd))) {
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44 | //status = EXIT_FAILURE; - do we want this?
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45 | bb_simple_perror_msg(*argv);
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46 | }
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47 | close(fd);
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48 | } while (*++argv);
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49 |
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50 | return status;
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51 | }
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