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author | Denys Vlasenko | 2017-04-12 13:58:40 +0200 |
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committer | Denys Vlasenko | 2017-04-12 13:58:40 +0200 |
commit | 783d57af7bb2b851c16cf87df848e0365e5052da (patch) | |
tree | 71bb23e51b9cb40eac4a6fb831383134c1fc45a0 /miscutils/timeout.c | |
parent | ac47a00e2ec398b04c3141cd3434a6e4b95740b1 (diff) | |
download | busybox-783d57af7bb2b851c16cf87df848e0365e5052da.zip busybox-783d57af7bb2b851c16cf87df848e0365e5052da.tar.gz |
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 f29dc8a..0000000 --- a/miscutils/timeout.c +++ /dev/null @@ -1,127 +0,0 @@ -/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * - * COPYING NOTES - * - * timeout.c -- a timeout handler for shell commands - * - * Copyright (C) 2005-6, Roberto A. Foglietta <me@roberto.foglietta.name> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. - */ -/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * - * REVISION NOTES: - * released 17-11-2005 by Roberto A. Foglietta - * talarm 04-12-2005 by Roberto A. Foglietta - * modified 05-12-2005 by Roberto A. Foglietta - * sizerdct 06-12-2005 by Roberto A. Foglietta - * splitszf 12-05-2006 by Roberto A. Foglietta - * rewrite 14-11-2008 vda - */ -//config:config TIMEOUT -//config: bool "timeout" -//config: default y -//config: help -//config: Runs a program and watches it. If it does not terminate in -//config: specified number of seconds, it is sent a signal. - -//applet:IF_TIMEOUT(APPLET(timeout, BB_DIR_USR_BIN, BB_SUID_DROP)) - -//kbuild:lib-$(CONFIG_TIMEOUT) += timeout.o - -//usage:#define timeout_trivial_usage -//usage: "[-t SECS] [-s SIG] PROG ARGS" -//usage:#define timeout_full_usage "\n\n" -//usage: "Runs PROG. Sends SIG to it if it is not gone in SECS seconds.\n" -//usage: "Defaults: SECS: 10, SIG: TERM." - -#include "libbb.h" - -int timeout_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; -int timeout_main(int argc UNUSED_PARAM, char **argv) -{ - int signo; - int status; - int parent = 0; - int timeout = 10; - pid_t pid; -#if !BB_MMU - char *sv1, *sv2; -#endif - const char *opt_s = "TERM"; - - /* -p option is not documented, it is needed to support NOMMU. */ - - /* -t SECONDS; -p PARENT_PID */ - /* '+': stop at first non-option */ - getopt32(argv, "+s:t:+" USE_FOR_NOMMU("p:+"), &opt_s, &timeout, &parent); - /*argv += optind; - no, wait for bb_daemonize_or_rexec! */ - signo = get_signum(opt_s); - if (signo < 0) - bb_error_msg_and_die("unknown signal '%s'", opt_s); - - /* We want to create a grandchild which will watch - * and kill the grandparent. Other methods: - * making parent watch child disrupts parent<->child link - * (example: "tcpsvd 0.0.0.0 1234 timeout service_prog" - - * it's better if service_prog is a child of tcpsvd!), - * making child watch parent results in programs having - * unexpected children. */ - - if (parent) /* we were re-execed, already grandchild */ - goto grandchild; - if (!argv[optind]) /* no PROG? */ - bb_show_usage(); - -#if !BB_MMU - sv1 = argv[optind]; - sv2 = argv[optind + 1]; -#endif - pid = xvfork(); - if (pid == 0) { - /* Child: spawn grandchild and exit */ - parent = getppid(); -#if !BB_MMU - argv[optind] = xasprintf("-p%u", parent); - argv[optind + 1] = NULL; -#endif - /* NB: exits with nonzero on error: */ - bb_daemonize_or_rexec(0, argv); - /* Here we are grandchild. Sleep, then kill grandparent */ - grandchild: - /* Just sleep(HUGE_NUM); kill(parent) may kill wrong process! */ - while (1) { - sleep(1); - if (--timeout <= 0) - break; - if (kill(parent, 0)) { - /* process is gone */ - return EXIT_SUCCESS; - } - } - kill(parent, signo); - return EXIT_SUCCESS; - } - - /* Parent */ - wait(&status); /* wait for child to die */ - /* Did intermediate [v]fork or exec fail? */ - if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) - return EXIT_FAILURE; - /* Ok, exec a program as requested */ - argv += optind; -#if !BB_MMU - argv[0] = sv1; - argv[1] = sv2; -#endif - BB_EXECVP_or_die(argv); -} |