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halt: write wtmp entry if wtmp support is enabled

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This commit is contained in:
Denis Vlasenko 2008-01-24 02:28:00 +00:00
parent 1d290d1e24
commit 680b86afbb
1 changed files with 38 additions and 5 deletions
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43
init/halt.c
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@ -10,6 +10,11 @@
#include "libbb.h"
#include <sys/reboot.h>
#if ENABLE_FEATURE_WTMP
#include <sys/utsname.h>
#include <utmp.h>
#endif
int halt_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int halt_main(int argc, char **argv)
{
@ -26,18 +31,46 @@ RB_POWERDOWN,
#endif
RB_AUTOBOOT
};
static const int signals[] = { SIGUSR1, SIGUSR2, SIGTERM };
static const smallint signals[] = { SIGUSR1, SIGUSR2, SIGTERM };
char *delay;
int which, flags, rc = 1;
#if ENABLE_FEATURE_WTMP
struct utmp utmp;
struct timeval tv;
struct utsname uts;
#endif
/* Figure out which applet we're running */
for (which = 0; "hpr"[which] != *applet_name; which++);
for (which = 0; "hpr"[which] != *applet_name; which++)
continue;
/* Parse and handle arguments */
flags = getopt32(argv, "d:nf", &delay);
if (flags & 1) sleep(xatou(delay));
if (!(flags & 2)) sync();
flags = getopt32(argv, "d:nfw", &delay);
if (flags & 1)
sleep(xatou(delay));
#if ENABLE_FEATURE_WTMP
if (access(bb_path_wtmp_file, R_OK|W_OK) == -1) {
close(creat(bb_path_wtmp_file, 0664));
}
memset(&utmp, 0, sizeof(utmp));
gettimeofday(&tv, NULL);
utmp.ut_tv.tv_sec = tv.tv_sec;
utmp.ut_tv.tv_usec = tv.tv_usec;
safe_strncpy(utmp.ut_user, "shutdown", UT_NAMESIZE);
utmp.ut_type = RUN_LVL;
safe_strncpy(utmp.ut_id, "~~", sizeof(utmp.ut_id));
safe_strncpy(utmp.ut_line, "~~", UT_LINESIZE);
if (uname(&uts) == 0)
safe_strncpy(utmp.ut_host, uts.release, sizeof(utmp.ut_host));
updwtmp(bb_path_wtmp_file, &utmp);
#endif /* !ENABLE_FEATURE_WTMP */
if (flags & 8) /* -w */
return 0;
if (!(flags & 2)) /* no -n */
sync();
/* Perform action. */
if (ENABLE_INIT && !(flags & 4)) {