*
* This version was taken from util-linux and scrubbed down for busybox.
*
- * Licensed under GPLv2, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2, see file LICENSE in this source tree.
*
* This uses cross-platform Linux interfaces to enter a system sleep state,
* and leave it no later than a specified time. It uses any RTC framework
* That flag should not be needed on systems with adjtime support.
*/
+//usage:#define rtcwake_trivial_usage
+//usage: "[-a | -l | -u] [-d DEV] [-m MODE] [-s SEC | -t TIME]"
+//usage:#define rtcwake_full_usage "\n\n"
+//usage: "Enter a system sleep state until specified wakeup time\n"
+//usage: IF_LONG_OPTS(
+//usage: "\n -a,--auto Read clock mode from adjtime"
+//usage: "\n -l,--local Clock is set to local time"
+//usage: "\n -u,--utc Clock is set to UTC time"
+//usage: "\n -d,--device=DEV Specify the RTC device"
+//usage: "\n -m,--mode=MODE Set the sleep state (default: standby)"
+//usage: "\n -s,--seconds=SEC Set the timeout in SEC seconds from now"
+//usage: "\n -t,--time=TIME Set the timeout to TIME seconds from epoch"
+//usage: )
+//usage: IF_NOT_LONG_OPTS(
+//usage: "\n -a Read clock mode from adjtime"
+//usage: "\n -l Clock is set to local time"
+//usage: "\n -u Clock is set to UTC time"
+//usage: "\n -d DEV Specify the RTC device"
+//usage: "\n -m MODE Set the sleep state (default: standby)"
+//usage: "\n -s SEC Set the timeout in SEC seconds from now"
+//usage: "\n -t TIME Set the timeout to TIME seconds from epoch"
+//usage: )
+
#include "libbb.h"
#include "rtc_.h"
ssize_t ret;
char buf[128];
- /* strip the '/dev/' from the rtcname here */
- if (!strncmp(rtcname, "/dev/", 5))
- rtcname += 5;
+ /* strip "/dev/" from the rtcname here */
+ rtcname = skip_dev_pfx(rtcname);
snprintf(buf, sizeof(buf), SYS_RTC_PATH, rtcname);
ret = open_read_close(buf, buf, sizeof(buf));
static NOINLINE void setup_alarm(int fd, time_t *wakeup, time_t rtc_time)
{
- struct tm *tm;
- struct linux_rtc_wkalrm wake;
+ struct tm *ptm;
+ struct linux_rtc_wkalrm wake;
/* The wakeup time is in POSIX time (more or less UTC).
* Ideally RTCs use that same time; but PCs can't do that
* Else mode is local so the time given to the RTC
* will instead use the local time zone.
*/
- tm = localtime(wakeup);
-
- wake.time.tm_sec = tm->tm_sec;
- wake.time.tm_min = tm->tm_min;
- wake.time.tm_hour = tm->tm_hour;
- wake.time.tm_mday = tm->tm_mday;
- wake.time.tm_mon = tm->tm_mon;
- wake.time.tm_year = tm->tm_year;
+ ptm = localtime(wakeup);
+
+ wake.time.tm_sec = ptm->tm_sec;
+ wake.time.tm_min = ptm->tm_min;
+ wake.time.tm_hour = ptm->tm_hour;
+ wake.time.tm_mday = ptm->tm_mday;
+ wake.time.tm_mon = ptm->tm_mon;
+ wake.time.tm_year = ptm->tm_year;
/* wday, yday, and isdst fields are unused by Linux */
wake.time.tm_wday = -1;
wake.time.tm_yday = -1;
/* relative or absolute alarm time, normalized to time_t */
sys_time = time(NULL);
- rtc_time = rtc_read_time(fd, utc);
+ {
+ struct tm tm_time;
+ rtc_read_tm(&tm_time, fd);
+ rtc_time = rtc_tm2time(&tm_time, utc);
+ }
+
if (alarm_time) {
if (alarm_time < sys_time)
sync();
printf("wakeup from \"%s\" at %s", suspend, ctime(&alarm_time));
- fflush(NULL);
+ fflush_all();
usleep(10 * 1000);
if (strcmp(suspend, "on"))