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author | Denys Vlasenko <vda.linux@googlemail.com> | 2017-04-12 13:58:40 +0200 |
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committer | Denys Vlasenko <vda.linux@googlemail.com> | 2017-04-12 13:58:40 +0200 |
commit | 783d57af7bb2b851c16cf87df848e0365e5052da (patch) | |
tree | 71bb23e51b9cb40eac4a6fb831383134c1fc45a0 /miscutils/timeout.c | |
parent | ac47a00e2ec398b04c3141cd3434a6e4b95740b1 (diff) | |
download | busybox-w32-783d57af7bb2b851c16cf87df848e0365e5052da.tar.gz busybox-w32-783d57af7bb2b851c16cf87df848e0365e5052da.tar.bz2 busybox-w32-783d57af7bb2b851c16cf87df848e0365e5052da.zip |
Sort some miscutils/ applets into coreutils or util-linux
No code changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'miscutils/timeout.c')
-rw-r--r-- | miscutils/timeout.c | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/miscutils/timeout.c b/miscutils/timeout.c deleted file mode 100644 index f29dc8a9c..000000000 --- a/miscutils/timeout.c +++ /dev/null | |||
@@ -1,127 +0,0 @@ | |||
1 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * | ||
2 | * COPYING NOTES | ||
3 | * | ||
4 | * timeout.c -- a timeout handler for shell commands | ||
5 | * | ||
6 | * Copyright (C) 2005-6, Roberto A. Foglietta <me@roberto.foglietta.name> | ||
7 | * | ||
8 | * This program is free software; you can redistribute it and/or modify | ||
9 | * it under the terms of the GNU General Public License as published by | ||
10 | * the Free Software Foundation; version 2 of the License. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | * GNU General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU General Public License | ||
18 | * along with this program; if not, write to the Free Software | ||
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. | ||
20 | */ | ||
21 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * | ||
22 | * REVISION NOTES: | ||
23 | * released 17-11-2005 by Roberto A. Foglietta | ||
24 | * talarm 04-12-2005 by Roberto A. Foglietta | ||
25 | * modified 05-12-2005 by Roberto A. Foglietta | ||
26 | * sizerdct 06-12-2005 by Roberto A. Foglietta | ||
27 | * splitszf 12-05-2006 by Roberto A. Foglietta | ||
28 | * rewrite 14-11-2008 vda | ||
29 | */ | ||
30 | //config:config TIMEOUT | ||
31 | //config: bool "timeout" | ||
32 | //config: default y | ||
33 | //config: help | ||
34 | //config: Runs a program and watches it. If it does not terminate in | ||
35 | //config: specified number of seconds, it is sent a signal. | ||
36 | |||
37 | //applet:IF_TIMEOUT(APPLET(timeout, BB_DIR_USR_BIN, BB_SUID_DROP)) | ||
38 | |||
39 | //kbuild:lib-$(CONFIG_TIMEOUT) += timeout.o | ||
40 | |||
41 | //usage:#define timeout_trivial_usage | ||
42 | //usage: "[-t SECS] [-s SIG] PROG ARGS" | ||
43 | //usage:#define timeout_full_usage "\n\n" | ||
44 | //usage: "Runs PROG. Sends SIG to it if it is not gone in SECS seconds.\n" | ||
45 | //usage: "Defaults: SECS: 10, SIG: TERM." | ||
46 | |||
47 | #include "libbb.h" | ||
48 | |||
49 | int timeout_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; | ||
50 | int timeout_main(int argc UNUSED_PARAM, char **argv) | ||
51 | { | ||
52 | int signo; | ||
53 | int status; | ||
54 | int parent = 0; | ||
55 | int timeout = 10; | ||
56 | pid_t pid; | ||
57 | #if !BB_MMU | ||
58 | char *sv1, *sv2; | ||
59 | #endif | ||
60 | const char *opt_s = "TERM"; | ||
61 | |||
62 | /* -p option is not documented, it is needed to support NOMMU. */ | ||
63 | |||
64 | /* -t SECONDS; -p PARENT_PID */ | ||
65 | /* '+': stop at first non-option */ | ||
66 | getopt32(argv, "+s:t:+" USE_FOR_NOMMU("p:+"), &opt_s, &timeout, &parent); | ||
67 | /*argv += optind; - no, wait for bb_daemonize_or_rexec! */ | ||
68 | signo = get_signum(opt_s); | ||
69 | if (signo < 0) | ||
70 | bb_error_msg_and_die("unknown signal '%s'", opt_s); | ||
71 | |||
72 | /* We want to create a grandchild which will watch | ||
73 | * and kill the grandparent. Other methods: | ||
74 | * making parent watch child disrupts parent<->child link | ||
75 | * (example: "tcpsvd 0.0.0.0 1234 timeout service_prog" - | ||
76 | * it's better if service_prog is a child of tcpsvd!), | ||
77 | * making child watch parent results in programs having | ||
78 | * unexpected children. */ | ||
79 | |||
80 | if (parent) /* we were re-execed, already grandchild */ | ||
81 | goto grandchild; | ||
82 | if (!argv[optind]) /* no PROG? */ | ||
83 | bb_show_usage(); | ||
84 | |||
85 | #if !BB_MMU | ||
86 | sv1 = argv[optind]; | ||
87 | sv2 = argv[optind + 1]; | ||
88 | #endif | ||
89 | pid = xvfork(); | ||
90 | if (pid == 0) { | ||
91 | /* Child: spawn grandchild and exit */ | ||
92 | parent = getppid(); | ||
93 | #if !BB_MMU | ||
94 | argv[optind] = xasprintf("-p%u", parent); | ||
95 | argv[optind + 1] = NULL; | ||
96 | #endif | ||
97 | /* NB: exits with nonzero on error: */ | ||
98 | bb_daemonize_or_rexec(0, argv); | ||
99 | /* Here we are grandchild. Sleep, then kill grandparent */ | ||
100 | grandchild: | ||
101 | /* Just sleep(HUGE_NUM); kill(parent) may kill wrong process! */ | ||
102 | while (1) { | ||
103 | sleep(1); | ||
104 | if (--timeout <= 0) | ||
105 | break; | ||
106 | if (kill(parent, 0)) { | ||
107 | /* process is gone */ | ||
108 | return EXIT_SUCCESS; | ||
109 | } | ||
110 | } | ||
111 | kill(parent, signo); | ||
112 | return EXIT_SUCCESS; | ||
113 | } | ||
114 | |||
115 | /* Parent */ | ||
116 | wait(&status); /* wait for child to die */ | ||
117 | /* Did intermediate [v]fork or exec fail? */ | ||
118 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | ||
119 | return EXIT_FAILURE; | ||
120 | /* Ok, exec a program as requested */ | ||
121 | argv += optind; | ||
122 | #if !BB_MMU | ||
123 | argv[0] = sv1; | ||
124 | argv[1] = sv2; | ||
125 | #endif | ||
126 | BB_EXECVP_or_die(argv); | ||
127 | } | ||