Function dav_get_timeout

modules/dav/main/util.c:542–573

dav_get_timeout: If the Timeout: header exists, return a time_t * when this lock is expected to expire. Otherwise, return * a time_t of DAV_TIMEOUT_INFINITE. * * It's unclear if DAV clients are required to understand * Seconds-xxx and Infinity time values. We assume that they do. * In addition, for now, that's all we understand, too. */

 *    In addition, for now, that's all we understand, too.
 */
DAV_DECLARE(time_t) dav_get_timeout(request_rec *r)
{
    time_t now, expires = DAV_TIMEOUT_INFINITE;

    const char *timeout_const = apr_table_get(r->headers_in, "Timeout");
    const char *timeout = apr_pstrdup(r->pool, timeout_const), *val;

    if (timeout == NULL)
        return DAV_TIMEOUT_INFINITE;

    /* Use the first thing we understand, or infinity if
     * we don't understand anything.
     */

    while ((val = ap_getword_white(r->pool, &timeout)) && strlen(val)) {
        if (!strncmp(val, "Infinite", 8)) {
            return DAV_TIMEOUT_INFINITE;
        }

        if (!strncmp(val, "Second-", 7)) {
            val += 7;
            /* ### We need to handle overflow better:
             * ### timeout will be <= 2^32 - 1
             */
            expires = atol(val);
            now     = time(NULL);
            return now + expires;
        }
    }

    return DAV_TIMEOUT_INFINITE;
}

/* ---------------------------------------------------------------
**