diff options
Diffstat (limited to 'coreutils')
| -rw-r--r-- | coreutils/fsync.c | 62 | ||||
| -rw-r--r-- | coreutils/sync.c | 80 |
2 files changed, 61 insertions, 81 deletions
diff --git a/coreutils/fsync.c b/coreutils/fsync.c deleted file mode 100644 index 216cbcf..0000000 --- a/coreutils/fsync.c +++ /dev/null @@ -1,62 +0,0 @@ -/* 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. - */ -//config:config FSYNC -//config: bool "fsync (3.6 kb)" -//config: default y -//config: help -//config: fsync is used to flush file-related cached blocks to disk. - -// APPLET_NOFORK:name main location suid_type help -//applet:IF_FSYNC(APPLET_NOFORK(fsync, fsync, BB_DIR_BIN, BB_SUID_DROP, fsync)) - -//kbuild:lib-$(CONFIG_FSYNC) += fsync.o - -//usage:#define fsync_trivial_usage -//usage: "[-d] FILE..." -//usage:#define fsync_full_usage "\n\n" -//usage: "Write all buffered blocks in FILEs to disk\n" -//usage: "\n -d Avoid syncing metadata" - -#include "libbb.h" - -/* 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 ret; - int opts; - - opts = getopt32(argv, "d"); /* fdatasync */ - argv += optind; - if (!*argv) { - bb_show_usage(); - } - - ret = EXIT_SUCCESS; - do { - /* GNU "sync FILE" uses O_NONBLOCK open */ - int fd = open_or_warn(*argv, /*O_NOATIME |*/ O_NOCTTY | O_RDONLY | O_NONBLOCK); - /* open(NOATIME) can only be used by owner or root, don't use NOATIME here */ - - if (fd < 0) { - ret = EXIT_FAILURE; - goto next; - } - if ((opts ? fdatasync(fd) : fsync(fd)) != 0) { - bb_simple_perror_msg(*argv); - ret = EXIT_FAILURE; - } - close(fd); - next: - argv++; - } while (*argv); - - return ret; -} diff --git a/coreutils/sync.c b/coreutils/sync.c index e60e553..ea328a5 100644 --- a/coreutils/sync.c +++ b/coreutils/sync.c @@ -43,32 +43,17 @@ /* This is a NOFORK applet. Be very careful! */ -int sync_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; -int sync_main(int argc UNUSED_PARAM, char **argv IF_NOT_DESKTOP(UNUSED_PARAM)) +#if ENABLE_FEATURE_SYNC_FANCY || ENABLE_FSYNC +static int sync_common(int opts, char **argv) { -#if !ENABLE_FEATURE_SYNC_FANCY - /* coreutils-6.9 compat */ - bb_warn_ignoring_args(argv[1]); - sync(); - return EXIT_SUCCESS; -#else - unsigned opts; int ret; - enum { OPT_DATASYNC = (1 << 0), OPT_SYNCFS = (1 << 1), }; - opts = getopt32(argv, "^" "df" "\0" "d--f:f--d"); - argv += optind; - - /* Handle the no-argument case. */ - if (!argv[0]) - sync(); - ret = EXIT_SUCCESS; - while (*argv) { + do { /* GNU "sync FILE" uses O_NONBLOCK open */ int fd = open_or_warn(*argv, /*O_NOATIME |*/ O_NOCTTY | O_RDONLY | O_NONBLOCK); /* open(NOATIME) can only be used by owner or root, don't use NOATIME here */ @@ -77,6 +62,7 @@ int sync_main(int argc UNUSED_PARAM, char **argv IF_NOT_DESKTOP(UNUSED_PARAM)) ret = EXIT_FAILURE; goto next; } +# if ENABLE_FEATURE_SYNC_FANCY if (opts & OPT_SYNCFS) { /* * syncfs is documented to only fail with EBADF, @@ -84,6 +70,7 @@ int sync_main(int argc UNUSED_PARAM, char **argv IF_NOT_DESKTOP(UNUSED_PARAM)) */ syncfs(fd); } else +# endif if (((opts & OPT_DATASYNC) ? fdatasync(fd) : fsync(fd)) != 0) { bb_simple_perror_msg(*argv); ret = EXIT_FAILURE; @@ -91,8 +78,63 @@ int sync_main(int argc UNUSED_PARAM, char **argv IF_NOT_DESKTOP(UNUSED_PARAM)) close(fd); next: argv++; - } + } while (*argv); return ret; +} +#endif + +#if ENABLE_SYNC +int sync_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int sync_main(int argc UNUSED_PARAM, char **argv IF_NOT_DESKTOP(UNUSED_PARAM)) +{ +# if !ENABLE_FEATURE_SYNC_FANCY + /* coreutils-6.9 compat */ + bb_warn_ignoring_args(argv[1]); + sync(); + return EXIT_SUCCESS; +# else + unsigned opts = getopt32(argv, "^" "df" "\0" "d--f:f--d"); + argv += optind; + if (!argv[0]) { + sync(); + return EXIT_SUCCESS; + } + return sync_common(opts, argv); +# endif +} #endif + +/* + * 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. + */ +//config:config FSYNC +//config: bool "fsync (3.6 kb)" +//config: default y +//config: help +//config: fsync is used to flush file-related cached blocks to disk. + +// APPLET_NOFORK:name main location suid_type help +//applet:IF_FSYNC(APPLET_NOFORK(fsync, fsync, BB_DIR_BIN, BB_SUID_DROP, fsync)) + +//kbuild:lib-$(CONFIG_FSYNC) += sync.o + +//usage:#define fsync_trivial_usage +//usage: "[-d] FILE..." +//usage:#define fsync_full_usage "\n\n" +//usage: "Write all buffered blocks in FILEs to disk\n" +//usage: "\n -d Avoid syncing metadata" + +#if ENABLE_FSYNC +int fsync_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int fsync_main(int argc UNUSED_PARAM, char **argv) +{ + int opts = getopt32(argv, "^" "d" "\0" "-1"/*min 1 arg*/); + argv += optind; + return sync_common(opts, argv); } +#endif |