diff options
Diffstat (limited to 'util-linux/hwclock.c')
| -rw-r--r-- | util-linux/hwclock.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/util-linux/hwclock.c b/util-linux/hwclock.c index 204a103..8b65df6 100644 --- a/util-linux/hwclock.c +++ b/util-linux/hwclock.c @@ -59,25 +59,23 @@ static time_t read_rtc(int utc) int rtc = xopen_rtc(O_RDONLY); memset(&tm, 0, sizeof(struct tm)); - if (ioctl(rtc, RTC_RD_TIME, &tm) < 0) - bb_perror_msg_and_die("cannot read time from RTC"); + xioctl(rtc, RTC_RD_TIME, &tm); tm.tm_isdst = -1; /* not known */ close(rtc); if (utc) { oldtz = getenv("TZ"); - setenv("TZ", "UTC 0", 1); + putenv((char*)"TZ=UTC0"); tzset(); } t = mktime(&tm); if (utc) { + unsetenv("TZ"); if (oldtz) - setenv("TZ", oldtz, 1); - else - unsetenv("TZ"); + putenv(oldtz - 3); tzset(); } return t; @@ -91,8 +89,7 @@ static void write_rtc(time_t t, int utc) tm = *(utc ? gmtime(&t) : localtime(&t)); tm.tm_isdst = 0; - if (ioctl(rtc, RTC_SET_TIME, &tm) < 0) - bb_perror_msg_and_die("cannot set the RTC time"); + xioctl(rtc, RTC_SET_TIME, &tm); close(rtc); } |