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author | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2009-10-26 23:29:03 +0100 |
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committer | Denys Vlasenko <vda.linux@googlemail.com> | 2009-10-27 17:34:36 +0100 |
commit | e039e689e3c4baefb4b62703429aaf86eef1bd99 (patch) | |
tree | 41d75770e7e1bb36a2662fa9c273ab4c806dc3c3 /miscutils | |
parent | a48308701a4d89d7cc0d0557cfabaec94a0bb3b0 (diff) | |
download | busybox-w32-e039e689e3c4baefb4b62703429aaf86eef1bd99.tar.gz busybox-w32-e039e689e3c4baefb4b62703429aaf86eef1bd99.tar.bz2 busybox-w32-e039e689e3c4baefb4b62703429aaf86eef1bd99.zip |
wall: new applet
text data bss dec hex filename
81 0 0 81 51 miscutils/wall.o
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'miscutils')
-rw-r--r-- | miscutils/Config.in | 6 | ||||
-rw-r--r-- | miscutils/Kbuild | 1 | ||||
-rw-r--r-- | miscutils/wall.c | 36 |
3 files changed, 43 insertions, 0 deletions
diff --git a/miscutils/Config.in b/miscutils/Config.in index 9b804889b..842f7f9d2 100644 --- a/miscutils/Config.in +++ b/miscutils/Config.in | |||
@@ -612,6 +612,12 @@ config VOLNAME | |||
612 | help | 612 | help |
613 | Prints a CD-ROM volume name. | 613 | Prints a CD-ROM volume name. |
614 | 614 | ||
615 | config WALL | ||
616 | bool "wall" | ||
617 | default n | ||
618 | help | ||
619 | Write a message to all users that are logged in. | ||
620 | |||
615 | config WATCHDOG | 621 | config WATCHDOG |
616 | bool "watchdog" | 622 | bool "watchdog" |
617 | default n | 623 | default n |
diff --git a/miscutils/Kbuild b/miscutils/Kbuild index d88cb39ac..22a9adb34 100644 --- a/miscutils/Kbuild +++ b/miscutils/Kbuild | |||
@@ -42,4 +42,5 @@ lib-$(CONFIG_TIME) += time.o | |||
42 | lib-$(CONFIG_TIMEOUT) += timeout.o | 42 | lib-$(CONFIG_TIMEOUT) += timeout.o |
43 | lib-$(CONFIG_TTYSIZE) += ttysize.o | 43 | lib-$(CONFIG_TTYSIZE) += ttysize.o |
44 | lib-$(CONFIG_VOLNAME) += volname.o | 44 | lib-$(CONFIG_VOLNAME) += volname.o |
45 | lib-$(CONFIG_WALL) += wall.o | ||
45 | lib-$(CONFIG_WATCHDOG) += watchdog.o | 46 | lib-$(CONFIG_WATCHDOG) += watchdog.o |
diff --git a/miscutils/wall.c b/miscutils/wall.c new file mode 100644 index 000000000..2dbab60b4 --- /dev/null +++ b/miscutils/wall.c | |||
@@ -0,0 +1,36 @@ | |||
1 | /* vi: set sw=4 ts=4: */ | ||
2 | /* | ||
3 | * wall - write a message to all logged-in users | ||
4 | * Copyright (c) 2009 Bernhard Reutner-Fischer | ||
5 | * | ||
6 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. | ||
7 | */ | ||
8 | |||
9 | #include "libbb.h" | ||
10 | #include <utmp.h> | ||
11 | |||
12 | int wall_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; | ||
13 | int wall_main(int argc UNUSED_PARAM, char **argv) | ||
14 | { | ||
15 | struct utmp *ut; | ||
16 | char *msg; | ||
17 | int fd = argv[1] ? xopen(argv[1], O_RDONLY) : STDIN_FILENO; | ||
18 | |||
19 | msg = xmalloc_read(fd, NULL); | ||
20 | if (ENABLE_FEATURE_CLEAN_UP && argv[1]) | ||
21 | close(fd); | ||
22 | setutent(); | ||
23 | while ((ut = getutent()) != NULL) { | ||
24 | char *line; | ||
25 | if (ut->ut_type != USER_PROCESS) | ||
26 | continue; | ||
27 | line = concat_path_file("/dev", ut->ut_line); | ||
28 | xopen_xwrite_close(line, msg); | ||
29 | free(line); | ||
30 | } | ||
31 | if (ENABLE_FEATURE_CLEAN_UP) { | ||
32 | endutent(); | ||
33 | free(msg); | ||
34 | } | ||
35 | return EXIT_SUCCESS; | ||
36 | } | ||