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sbin/shutdown/shutdown.c

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#ifndef lint #ifndef lint
static char sccsid[] = "@(#)shutdown.c 8.4 (Berkeley) 4/28/95"; static char sccsid[] = "@(#)shutdown.c 8.4 (Berkeley) 4/28/95";
#endif /* not lint */ #endif /* not lint */
#endif #endif
#include <sys/cdefs.h> #include <sys/cdefs.h>
__FBSDID("$FreeBSD$"); __FBSDID("$FreeBSD$");
#include <sys/param.h> #include <sys/param.h>
#include <sys/time.h> #include <sys/boottrace.h>
#include <sys/resource.h> #include <sys/resource.h>
#include <sys/sysctl.h>
#include <sys/syslog.h> #include <sys/syslog.h>
#include <sys/time.h>
#include <ctype.h> #include <ctype.h>
#include <err.h> #include <err.h>
#include <errno.h> #include <errno.h>
#include <fcntl.h> #include <fcntl.h>
#include <paths.h> #include <paths.h>
#include <pwd.h> #include <pwd.h>
#include <setjmp.h> #include <setjmp.h>
▲ Show 20 Lines • Show All 158 Lines • ▼ Show 20 Lines for (;;) {
*p = '\n'; *p = '\n';
*++p = '\0'; *++p = '\0';
break; break;
} }
} }
} }
mbuflen = strlen(mbuf); mbuflen = strlen(mbuf);
if (offset) if (offset) {
BOOTTRACE("Shutdown at %s", ctime(&shuttime));
(void)printf("Shutdown at %.24s.\n", ctime(&shuttime)); (void)printf("Shutdown at %.24s.\n", ctime(&shuttime));
else } else {
BOOTTRACE("Shutdown NOW!");
(void)printf("Shutdown NOW!\n"); (void)printf("Shutdown NOW!\n");
}
if (!(whom = getlogin())) if (!(whom = getlogin()))
whom = (pw = getpwuid(getuid())) ? pw->pw_name : "???"; whom = (pw = getpwuid(getuid())) ? pw->pw_name : "???";
#ifdef DEBUG #ifdef DEBUG
(void)putc('\n', stdout); (void)putc('\n', stdout);
#else #else
(void)setpriority(PRIO_PROCESS, 0, PRIO_MIN); (void)setpriority(PRIO_PROCESS, 0, PRIO_MIN);
▲ Show 20 Lines • Show All 119 Lines • ▼ Show 20 Linestimeout(int signo __unused)
longjmp(alarmbuf, 1); longjmp(alarmbuf, 1);
} }
static void static void
die_you_gravy_sucking_pig_dog(void) die_you_gravy_sucking_pig_dog(void)
{ {
char *empty_environ[] = { NULL }; char *empty_environ[] = { NULL };
BOOTTRACE("%s by %s",
doreboot ? "reboot" : dohalt ? "halt" : dopower ? "power-down" :
docycle ? "power-cycle" : "shutdown", whom);
syslog(LOG_NOTICE, "%s by %s: %s", syslog(LOG_NOTICE, "%s by %s: %s",
doreboot ? "reboot" : dohalt ? "halt" : dopower ? "power-down" : doreboot ? "reboot" : dohalt ? "halt" : dopower ? "power-down" :
docycle ? "power-cycle" : "shutdown", whom, mbuf); docycle ? "power-cycle" : "shutdown", whom, mbuf);
(void)printf("\r\nSystem shutdown time has arrived\007\007\r\n"); (void)printf("\r\nSystem shutdown time has arrived\007\007\r\n");
if (killflg) { if (killflg) {
BOOTTRACE("fake shutdown...");
(void)printf("\rbut you'll have to do it yourself\r\n"); (void)printf("\rbut you'll have to do it yourself\r\n");
exit(0); exit(0);
} }
#ifdef DEBUG #ifdef DEBUG
if (doreboot) if (doreboot)
(void)printf("reboot"); (void)printf("reboot");
else if (docycle) else if (docycle)
(void)printf("power-cycle"); (void)printf("power-cycle");
else if (dohalt) else if (dohalt)
(void)printf("halt"); (void)printf("halt");
else if (dopower) else if (dopower)
(void)printf("power-down"); (void)printf("power-down");
if (nosync != NULL) if (nosync != NULL)
(void)printf(" no sync"); (void)printf(" no sync");
(void)printf("\nkill -HUP 1\n"); (void)printf("\nkill -HUP 1\n");
#else #else
if (!oflag) { if (!oflag) {
BOOTTRACE("signal to init(8)...");
(void)kill(1, doreboot ? SIGINT : /* reboot */ (void)kill(1, doreboot ? SIGINT : /* reboot */
dohalt ? SIGUSR1 : /* halt */ dohalt ? SIGUSR1 : /* halt */
dopower ? SIGUSR2 : /* power-down */ dopower ? SIGUSR2 : /* power-down */
docycle ? SIGWINCH : /* power-cycle */ docycle ? SIGWINCH : /* power-cycle */
SIGTERM); /* single-user */ SIGTERM); /* single-user */
} else { } else {
if (doreboot) { if (doreboot) {
BOOTTRACE("exec reboot(8) -l...");
execle(_PATH_REBOOT, "reboot", "-l", nosync, execle(_PATH_REBOOT, "reboot", "-l", nosync,
(char *)NULL, empty_environ); (char *)NULL, empty_environ);
syslog(LOG_ERR, "shutdown: can't exec %s: %m.", syslog(LOG_ERR, "shutdown: can't exec %s: %m.",
_PATH_REBOOT); _PATH_REBOOT);
warn(_PATH_REBOOT); warn(_PATH_REBOOT);
} }
else if (dohalt) { else if (dohalt) {
BOOTTRACE("exec halt(8) -l...");
execle(_PATH_HALT, "halt", "-l", nosync, execle(_PATH_HALT, "halt", "-l", nosync,
(char *)NULL, empty_environ); (char *)NULL, empty_environ);
syslog(LOG_ERR, "shutdown: can't exec %s: %m.", syslog(LOG_ERR, "shutdown: can't exec %s: %m.",
_PATH_HALT); _PATH_HALT);
warn(_PATH_HALT); warn(_PATH_HALT);
} }
else if (dopower) { else if (dopower) {
BOOTTRACE("exec halt(8) -l -p...");
execle(_PATH_HALT, "halt", "-l", "-p", nosync, execle(_PATH_HALT, "halt", "-l", "-p", nosync,
(char *)NULL, empty_environ); (char *)NULL, empty_environ);
syslog(LOG_ERR, "shutdown: can't exec %s: %m.", syslog(LOG_ERR, "shutdown: can't exec %s: %m.",
_PATH_HALT); _PATH_HALT);
warn(_PATH_HALT); warn(_PATH_HALT);
} }
else if (docycle) { else if (docycle) {
execle(_PATH_HALT, "halt", "-l", "-c", nosync, execle(_PATH_HALT, "halt", "-l", "-c", nosync,
(char *)NULL, empty_environ); (char *)NULL, empty_environ);
syslog(LOG_ERR, "shutdown: can't exec %s: %m.", syslog(LOG_ERR, "shutdown: can't exec %s: %m.",
_PATH_HALT); _PATH_HALT);
warn(_PATH_HALT); warn(_PATH_HALT);
} }
BOOTTRACE("SIGTERM to init(8)...");
(void)kill(1, SIGTERM); /* to single-user */ (void)kill(1, SIGTERM); /* to single-user */
} }
#endif #endif
finish(0); finish(0);
} }
#define ATOI2(p) (p[0] - '0') * 10 + (p[1] - '0'); p += 2; #define ATOI2(p) (p[0] - '0') * 10 + (p[1] - '0'); p += 2;
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