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init: do not sleep forever on usage errors

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2010-10-25 00:40:32 +02:00
parent 03a5fe378e
commit 3b060528a2
1 changed files with 13 additions and 4 deletions
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17
init/init.c
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@ -660,7 +660,9 @@ static struct init_action *mark_terminated(pid_t pid)
return a; return a;
} }
} }
update_utmp(pid, DEAD_PROCESS, /*tty_name:*/ NULL, /*username:*/ NULL, /*hostname:*/ NULL); update_utmp(pid, DEAD_PROCESS, /*tty_name:*/ NULL,
/*username:*/ NULL,
/*hostname:*/ NULL);
} }
return NULL; return NULL;
} }
@ -1086,8 +1088,6 @@ static int check_delayed_sigs(void)
int init_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int init_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int init_main(int argc UNUSED_PARAM, char **argv) int init_main(int argc UNUSED_PARAM, char **argv)
{ {
die_sleep = 30 * 24*60*60; /* if xmalloc would ever die... */
if (argv[1] && strcmp(argv[1], "-q") == 0) { if (argv[1] && strcmp(argv[1], "-q") == 0) {
return kill(1, SIGHUP); return kill(1, SIGHUP);
} }
@ -1106,6 +1106,15 @@ int init_main(int argc UNUSED_PARAM, char **argv)
#endif #endif
} }
/* If, say, xmalloc would ever die, we don't want to oops kernel
* by exiting.
* NB: we set die_sleep *after* PID 1 check and bb_show_usage.
* Otherwise, for example, "init u" ("please rexec yourself"
* command for sysvinit) will show help text (which isn't too bad),
* *and sleep forever* (which is bad!)
*/
die_sleep = 30 * 24*60*60;
/* Figure out where the default console should be */ /* Figure out where the default console should be */
console_init(); console_init();
set_sane_term(); set_sane_term();
@ -1173,7 +1182,7 @@ int init_main(int argc UNUSED_PARAM, char **argv)
/* SELinux in enforcing mode but load_policy failed */ /* SELinux in enforcing mode but load_policy failed */
message(L_CONSOLE, "can't load SELinux Policy. " message(L_CONSOLE, "can't load SELinux Policy. "
"Machine is in enforcing mode. Halting now."); "Machine is in enforcing mode. Halting now.");
exit(EXIT_FAILURE); return EXIT_FAILURE;
} }
} }
#endif #endif