busybox/coreutils/fsync.c
Pere Orga 34425389e0 move help text from include/usage.src.h to coreutils/*.c
Signed-off-by: Pere Orga <gotrunks@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-03-31 14:43:25 +02:00

53 lines
1.1 KiB
C

/* vi: set sw=4 ts=4: */
/*
* Mini fsync implementation for busybox
*
* Copyright (C) 2008 Nokia Corporation. All rights reserved.
*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
//usage:#define fsync_trivial_usage
//usage: "[-d] FILE..."
//usage:#define fsync_full_usage "\n\n"
//usage: "Write files' buffered blocks to disk\n"
//usage: "\nOptions:"
//usage: "\n -d Avoid syncing metadata"
#include "libbb.h"
#ifndef O_NOATIME
# define O_NOATIME 0
#endif
/* This is a NOFORK applet. Be very careful! */
int fsync_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int fsync_main(int argc UNUSED_PARAM, char **argv)
{
int status;
int opts;
opts = getopt32(argv, "d"); /* fdatasync */
argv += optind;
if (!*argv) {
bb_show_usage();
}
status = EXIT_SUCCESS;
do {
int fd = open_or_warn(*argv, O_NOATIME | O_NOCTTY | O_RDONLY);
if (fd == -1) {
status = EXIT_FAILURE;
continue;
}
if ((opts ? fdatasync(fd) : fsync(fd))) {
//status = EXIT_FAILURE; - do we want this?
bb_simple_perror_msg(*argv);
}
close(fd);
} while (*++argv);
return status;
}