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authorGravatar Denis Vlasenko <vda.linux@googlemail.com>2008-01-24 02:28:00 +0000
committerGravatar Denis Vlasenko <vda.linux@googlemail.com>2008-01-24 02:28:00 +0000
commit680b86afbb8ba466176ad6866409496225660009 (patch)
tree79af7332ac8f7fd1560b7f68e17b1ed7edfd29dd /init
parent1d290d1e24ebe1a5204f16d1dd78255fe76ab60e (diff)
downloadbusybox-680b86afbb8ba466176ad6866409496225660009.tar.gz
busybox-680b86afbb8ba466176ad6866409496225660009.tar.bz2
halt: write wtmp entry if wtmp support is enabled
Diffstat (limited to 'init')
-rw-r--r--init/halt.c43
1 files changed, 38 insertions, 5 deletions
diff --git a/init/halt.c b/init/halt.c
index d9f8b1afc..c50d8af63 100644
--- a/init/halt.c
+++ b/init/halt.c
@@ -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)) {