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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2014-02-25 17:52:10 +0100 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2014-02-25 17:52:10 +0100 |
| commit | 589051b56553788546c757a0b38996a1a8c49a11 (patch) | |
| tree | 8a7ec2641575fe56d558409eb1e6eddfea2e1b2f /util-linux/hwclock.c | |
| parent | 18b699c30f1cd2d55bd094c10c44cfc3102f895c (diff) | |
| download | busybox-589051b56553788546c757a0b38996a1a8c49a11.tar.gz | |
hwclock: fix setting of tz_minuteswest. Closes 5414
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'util-linux/hwclock.c')
| -rw-r--r-- | util-linux/hwclock.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/util-linux/hwclock.c b/util-linux/hwclock.c index 379eeb253..3f531555b 100644 --- a/util-linux/hwclock.c +++ b/util-linux/hwclock.c @@ -97,7 +97,11 @@ static void to_sys_clock(const char **pp_rtcname, int utc) struct timeval tv; struct timezone tz; - tz.tz_minuteswest = timezone/60 - 60*daylight; + tz.tz_minuteswest = timezone/60; + /* ^^^ used to also subtract 60*daylight, but it's wrong: + * daylight!=0 means "this timezone has some DST + * during the year", not "DST is in effect now". + */ tz.tz_dsttime = 0; tv.tv_sec = read_rtc(pp_rtcname, NULL, utc); @@ -248,7 +252,7 @@ static void set_system_clock_timezone(int utc) gettimeofday(&tv, NULL); broken = localtime(&tv.tv_sec); tz.tz_minuteswest = timezone / 60; - if (broken->tm_isdst) + if (broken->tm_isdst > 0) tz.tz_minuteswest -= 60; tz.tz_dsttime = 0; gettimeofday(&tv, NULL); @@ -305,6 +309,10 @@ int hwclock_main(int argc UNUSED_PARAM, char **argv) ; applet_long_options = hwclock_longopts; #endif + + /* Initialize "timezone" (libc global variable) */ + tzset(); + opt_complementary = "r--wst:w--rst:s--wrt:t--rsw:l--u:u--l"; opt = getopt32(argv, "lurswtf:", &rtcname); |