blob: 2e62c29fb2ac1bccaf5af0f045a5bbf5ffefc880 [file] [log] [blame]
#include "time_impl.h"
#include <errno.h>
#include "libc.h"
struct tm *__localtime_r(const time_t *restrict t, struct tm *restrict tm)
{
/* Reject time_t values whose year would overflow int because
* __secs_to_zone cannot safely handle them. */
if (*t < INT_MIN * 31622400LL || *t > INT_MAX * 31622400LL) {
errno = EOVERFLOW;
return 0;
}
__secs_to_zone(*t, 0, &tm->tm_isdst, &tm->__tm_gmtoff, 0, &tm->__tm_zone);
if (__secs_to_tm((long long)*t + tm->__tm_gmtoff, tm) < 0) {
errno = EOVERFLOW;
return 0;
}
return tm;
}
weak_alias(__localtime_r, localtime_r);