//kbuild:lib-$(CONFIG_TIMEOUT) += timeout.o
//usage:#define timeout_trivial_usage
-//usage: "[-t SECS] [-s SIG] PROG ARGS"
+//usage: "[-s SIG] SECS 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."
+//usage: "Default SIG: TERM."
#include "libbb.h"
int signo;
int status;
int parent = 0;
- int timeout = 10;
+ int timeout;
pid_t pid;
#if !BB_MMU
char *sv1, *sv2;
/* -t SECONDS; -p PARENT_PID */
/* '+': stop at first non-option */
- getopt32(argv, "+s:t:+" USE_FOR_NOMMU("p:+"), &opt_s, &timeout, &parent);
+ getopt32(argv, "+s:" USE_FOR_NOMMU("p:+"), &opt_s, &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);
+ if (!argv[optind])
+ bb_show_usage();
+ timeout = parse_duration_str(argv[optind++]);
+ if (!argv[optind]) /* no PROG? */
+ bb_show_usage();
+
/* 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. */
+ * 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];