rework langinfo code for ABI compat and for use by time code

[musl] / src / time / timegm.c

diff --git a/src/time/timegm.c b/src/time/timegm.c
index 6d08917..e7a7939 100644 (file)
--- 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 = EOVERFLOW;
+               return -1;
+       }
+       *tm = new;
+       tm->tm_isdst = 0;
+       tm->__tm_gmtoff = 0;
+       tm->__tm_zone = "GMT";
+       return t;
 }