-int64_t parse_date(const char *datestr, int duration)
-{
- const char *p;
- int64_t t;
- struct tm dt;
- int i;
- static const char * const date_fmt[] = {
- "%Y-%m-%d",
- "%Y%m%d",
- };
- static const char * const time_fmt[] = {
- "%H:%M:%S",
- "%H%M%S",
- };
- const char *q;
- int is_utc, len;
- char lastch;
- int negative = 0;
-
-#undef time
- time_t now = time(0);
-
- len = strlen(datestr);
- if (len > 0)
- lastch = datestr[len - 1];
- else
- lastch = '\0';
- is_utc = (lastch == 'z' || lastch == 'Z');
-
- memset(&dt, 0, sizeof(dt));
-
- p = datestr;
- q = NULL;
- if (!duration) {
- if (!strncasecmp(datestr, "now", len))
- return (int64_t) now * 1000000;
-
- /* parse the year-month-day part */
- for (i = 0; i < FF_ARRAY_ELEMS(date_fmt); i++) {
- q = small_strptime(p, date_fmt[i], &dt);
- if (q) {
- break;
- }
- }
-
- /* if the year-month-day part is missing, then take the
- * current year-month-day time */
- if (!q) {
- if (is_utc) {
- dt = *gmtime(&now);
- } else {
- dt = *localtime(&now);
- }
- dt.tm_hour = dt.tm_min = dt.tm_sec = 0;
- } else {
- p = q;
- }
-
- if (*p == 'T' || *p == 't' || *p == ' ')
- p++;
-
- /* parse the hour-minute-second part */
- for (i = 0; i < FF_ARRAY_ELEMS(time_fmt); i++) {
- q = small_strptime(p, time_fmt[i], &dt);
- if (q) {
- break;
- }
- }
- } else {
- /* parse datestr as a duration */
- if (p[0] == '-') {
- negative = 1;
- ++p;
- }
- /* parse datestr as HH:MM:SS */
- q = small_strptime(p, time_fmt[0], &dt);
- if (!q) {
- /* parse datestr as S+ */
- dt.tm_sec = strtol(p, (char **)&q, 10);
- if (q == p)
- /* the parsing didn't succeed */
- return INT64_MIN;
- dt.tm_min = 0;
- dt.tm_hour = 0;
- }
- }