time_t mktime_tz()

in src/dt.c [550:585]

• 30 lines of code
• 9 McCabe index (conditional complexity)

time_t mktime_tz(const struct tm *tm, const char *tz_name)
{
    dt_status_t status = DT_UNKNOWN_ERROR;
    dt_timestamp_t t = {0};
    dt_representation_t rep = {0};
    dt_timezone_t tz = {0,};
    time_t result = DT_INVALID_POSIX_TIME;
    unsigned long nano = 0;

    if (!tm || !result || !tz_name) {
        return DT_INVALID_POSIX_TIME;
    }
    if (dt_timezone_lookup(tz_name, &tz) != DT_OK) {
        return DT_INVALID_POSIX_TIME;
    }

    status = dt_tm_to_representation(tm, 0, &rep);
    if (status != DT_OK || dt_validate_representation(&rep) != DT_TRUE) {
        dt_timezone_cleanup(&tz);
        return DT_INVALID_POSIX_TIME;
    }

    status = dt_representation_to_timestamp(&rep, &tz, &t, NULL);
    dt_timezone_cleanup(&tz);
    if (status != DT_OK) {
        return DT_INVALID_POSIX_TIME;
    }

    status = dt_timestamp_to_posix_time(&t, &result, &nano);
    if (status != DT_OK) {
        return DT_INVALID_POSIX_TIME;
    }


    return result;
}