add time32 ABI compat shims, compat source tree

[musl] / compat / time32 / gettimeofday_time32.c

#include "time32.h"
#include <sys/time.h>
#include <errno.h>
#include <stdint.h>

int __gettimeofday_time32(struct timeval32 *tv32, void *tz)
{
        struct timeval tv;
        if (!tv32) return 0;
        int r = gettimeofday(&tv, 0);
        if (r) return r;
        if (tv.tv_sec < INT32_MIN || tv.tv_sec > INT32_MAX) {
                errno = EOVERFLOW;
                return -1;
        }
        tv32->tv_sec = tv.tv_sec;
        tv32->tv_usec = tv.tv_usec;
        return 0;
}