| 1 | #define _GNU_SOURCE |
| 2 | #include "time_impl.h" |
| 3 | #include <errno.h> |
| 4 | |
| 5 | time_t timegm(struct tm *tm) |
| 6 | { |
| 7 | struct tm new; |
| 8 | long long t = __tm_to_secs(tm); |
| 9 | if (__secs_to_tm(t, &new) < 0) { |
| 10 | errno = EOVERFLOW; |
| 11 | return -1; |
| 12 | } |
| 13 | *tm = new; |
| 14 | tm->tm_isdst = 0; |
| 15 | tm->__tm_gmtoff = 0; |
| 16 | tm->__tm_zone = __utc; |
| 17 | return t; |
| 18 | } |