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fix watchdog on no-mmu systems by adding -F option for rexec

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This commit is contained in:
Mike Frysinger 2006-06-26 21:31:17 +00:00
parent 42705abc28
commit cd68a2e1a8
2 changed files with 12 additions and 4 deletions
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5
include/usage.h
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@ -3372,11 +3372,12 @@ USE_FEATURE_START_STOP_DAEMON_FANCY( \
"Mon Dec 17 10:31:44 GMT 2000"
#define watchdog_trivial_usage \
"[-t <seconds>] DEV"
"[-t <seconds>] [-F] DEV"
#define watchdog_full_usage \
"Periodically write to watchdog device DEV.\n" \
"Options:\n" \
"\t-t\tTimer period in seconds - default is 30"
"\t-t\tTimer period in seconds - default is 30\n" \
"\t-F\tStay in the foreground and don't fork"
#define wc_trivial_usage \
"[OPTION]... [FILE]..."

11
miscutils/watchdog.c
View File

@ -15,6 +15,9 @@
#include <stdlib.h>
#include <signal.h>
#define OPT_FOREGROUND 0x01
#define OPT_TIMER 0x02
/* Watchdog file descriptor */
static int fd;
@ -27,10 +30,13 @@ static void watchdog_shutdown(int ATTRIBUTE_UNUSED unused)
int watchdog_main(int argc, char **argv)
{
unsigned long opts;
unsigned long timer_duration = 30; /* Userspace timer duration, in seconds */
char *t_arg;
if (bb_getopt_ulflags(argc, argv, "t:", &t_arg))
opts = bb_getopt_ulflags(argc, argv, "Ft:", &t_arg);
if (opts & OPT_TIMER)
timer_duration = bb_xgetlarg(t_arg, 10, 0, INT_MAX);
/* We're only interested in the watchdog device .. */
@ -38,7 +44,8 @@ int watchdog_main(int argc, char **argv)
bb_show_usage();
#ifdef BB_NOMMU
vfork_daemon(0, 1);
if (!(opts & OPT_FOREGROUND))
vfork_daemon_rexec(0, 1, argc, argv, "-F");
#else
bb_xdaemon(0, 1);
#endif