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author | Rich Felker <dalias@aerifal.cx> | 2013-07-17 05:24:50 -0400 |
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committer | Rich Felker <dalias@aerifal.cx> | 2013-07-17 05:24:50 -0400 |
commit | 1cc81f5cb0df2b66a795ff0c26d7bbc4d16e13c6 (patch) | |
tree | d8839fbfd8cb1fb5658394cad6a6a06688ab6a1b /src/time/timegm.c | |
parent | f1292e3d28309bbc81f61671164843cec4319bfa (diff) | |
download | musl-1cc81f5cb0df2b66a795ff0c26d7bbc4d16e13c6.zip musl-1cc81f5cb0df2b66a795ff0c26d7bbc4d16e13c6.tar.gz musl-1cc81f5cb0df2b66a795ff0c26d7bbc4d16e13c6.tar.bz2 |
the big time handling overhaul
this commit has two major user-visible parts: zoneinfo-format time
zones are now supported, and overflow handling is intended to be
complete in the sense that all functions return a correct result if
and only if the result fits in the destination type, and otherwise
return an error. also, some noticable bugs in the way DST detection
and normalization worked have been fixed, and performance may be
better than before, but it has not been tested.
Diffstat (limited to 'src/time/timegm.c')
-rw-r--r-- | src/time/timegm.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/src/time/timegm.c b/src/time/timegm.c index 6d08917..7148fca 100644 --- a/src/time/timegm.c +++ b/src/time/timegm.c @@ -1,9 +1,18 @@ #define _GNU_SOURCE -#include <time.h> - -#include "__time.h" +#include "time_impl.h" +#include <errno.h> time_t timegm(struct tm *tm) { - return __tm_to_time(tm); + struct tm new; + long long t = __tm_to_secs(tm); + if (__secs_to_tm(t, &new) < 0) { + errno = EINVAL; + return -1; + } + *tm = new; + tm->tm_isdst = 0; + tm->__tm_gmtoff = 0; + tm->__tm_zone = "GMT"; + return t; } |