diff options
Diffstat (limited to 'coreutils')
-rw-r--r-- | coreutils/Config.in | 6 | ||||
-rw-r--r-- | coreutils/Kbuild | 1 | ||||
-rw-r--r-- | coreutils/fsync.c | 41 |
3 files changed, 48 insertions, 0 deletions
diff --git a/coreutils/Config.in b/coreutils/Config.in index b047ce5e2..88642d71e 100644 --- a/coreutils/Config.in +++ b/coreutils/Config.in | |||
@@ -249,6 +249,12 @@ config FOLD | |||
249 | help | 249 | help |
250 | Wrap text to fit a specific width. | 250 | Wrap text to fit a specific width. |
251 | 251 | ||
252 | config FSYNC | ||
253 | bool "fsync" | ||
254 | default n | ||
255 | help | ||
256 | fsync is used to flush file-related cached blocks to disk. | ||
257 | |||
252 | config HEAD | 258 | config HEAD |
253 | bool "head" | 259 | bool "head" |
254 | default n | 260 | default n |
diff --git a/coreutils/Kbuild b/coreutils/Kbuild index 57100a9cf..4d6bde7b9 100644 --- a/coreutils/Kbuild +++ b/coreutils/Kbuild | |||
@@ -36,6 +36,7 @@ lib-$(CONFIG_EXPR) += expr.o | |||
36 | lib-$(CONFIG_EXPAND) += expand.o | 36 | lib-$(CONFIG_EXPAND) += expand.o |
37 | lib-$(CONFIG_FALSE) += false.o | 37 | lib-$(CONFIG_FALSE) += false.o |
38 | lib-$(CONFIG_FOLD) += fold.o | 38 | lib-$(CONFIG_FOLD) += fold.o |
39 | lib-$(CONFIG_FSYNC) += fsync.o | ||
39 | lib-$(CONFIG_HEAD) += head.o | 40 | lib-$(CONFIG_HEAD) += head.o |
40 | lib-$(CONFIG_HOSTID) += hostid.o | 41 | lib-$(CONFIG_HOSTID) += hostid.o |
41 | lib-$(CONFIG_ID) += id.o | 42 | lib-$(CONFIG_ID) += id.o |
diff --git a/coreutils/fsync.c b/coreutils/fsync.c new file mode 100644 index 000000000..f00803c5b --- /dev/null +++ b/coreutils/fsync.c | |||
@@ -0,0 +1,41 @@ | |||
1 | /* vi: set sw=4 ts=4: */ | ||
2 | /* | ||
3 | * Mini fsync implementation for busybox | ||
4 | * | ||
5 | * Copyright (C) 2008 Nokia Corporation. All rights reserved. | ||
6 | * | ||
7 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. | ||
8 | */ | ||
9 | #include "libbb.h" | ||
10 | |||
11 | /* This is a NOFORK applet. Be very careful! */ | ||
12 | |||
13 | int fsync_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; | ||
14 | int fsync_main(int argc UNUSED_PARAM, char **argv) | ||
15 | { | ||
16 | int status; | ||
17 | int opts; | ||
18 | |||
19 | opts = getopt32(argv, "d"); /* fdatasync */ | ||
20 | argv += optind; | ||
21 | if (!*argv) { | ||
22 | bb_show_usage(); | ||
23 | } | ||
24 | |||
25 | status = EXIT_SUCCESS; | ||
26 | do { | ||
27 | int fd = open3_or_warn(*argv, O_NOATIME | O_NOCTTY | O_RDONLY, 0); | ||
28 | |||
29 | if (fd == -1) { | ||
30 | status = EXIT_FAILURE; | ||
31 | continue; | ||
32 | } | ||
33 | if ((opts ? fdatasync(fd) : fsync(fd))) { | ||
34 | //status = EXIT_FAILURE; - do we want this? | ||
35 | bb_simple_perror_msg(*argv); | ||
36 | } | ||
37 | close(fd); | ||
38 | } while (*++argv); | ||
39 | |||
40 | return status; | ||
41 | } | ||