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timeout: fix arguments to match coreutils

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Was: timeout [-t SECS] [-s SIG] PROG ARGS
Is:  timeout [-s SIG] SECS PROG ARGS

function                                             old     new   delta
timeout_main                                         312     319      +7
packed_usage                                       32882   32858     -24
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 7/-24)             Total: -17 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2018-08-03 18:27:00 +02:00
parent 4c20d9f2b0
commit c9720a761e
1 changed files with 12 additions and 9 deletions
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21
coreutils/timeout.c
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@ -39,10 +39,10 @@
//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"
@ -52,8 +52,7 @@ int timeout_main(int argc UNUSED_PARAM, char **argv)
int signo;
int status;
int parent = 0;
unsigned timeout;
const char *timeout_s = "10";
int timeout;
pid_t pid;
#if !BB_MMU
char *sv1, *sv2;
@ -64,12 +63,18 @@ int timeout_main(int argc UNUSED_PARAM, char **argv)
/* -t SECONDS; -p PARENT_PID */
/* '+': stop at first non-option */
getopt32(argv, "+s:t:" USE_FOR_NOMMU("p:+"), &opt_s, &timeout_s, &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);
timeout = parse_duration_str((char*)timeout_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:
@ -77,12 +82,10 @@ int timeout_main(int argc UNUSED_PARAM, char **argv)
* (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];