size_t cdtime_to_iso8601 (char *s, size_t max, cdtime_t t) /* {{{ */ { struct timespec t_spec; struct tm t_tm; size_t len; CDTIME_T_TO_TIMESPEC (t, &t_spec); NORMALIZE_TIMESPEC (t_spec); if (localtime_r ((time_t *)&t_spec.tv_sec, &t_tm) == NULL) { char errbuf[1024]; ERROR ("cdtime_to_iso8601: localtime_r failed: %s", sstrerror (errno, errbuf, sizeof (errbuf))); return (0); } len = strftime (s, max, "%Y-%m-%dT%H:%M:%S", &t_tm); if (len == 0) return 0; if (max - len > 2) { int n = snprintf (s + len, max - len, ".%09i", (int)t_spec.tv_nsec); len += (n < max - len) ? n : max - len; } if (max - len > 3) { int n = strftime (s + len, max - len, "%z", &t_tm); len += (n < max - len) ? n : max - len; } s[max - 1] = '\0'; return len; } /* }}} size_t cdtime_to_iso8601 */
static int format_rfc3339 (char *buffer, size_t buffer_size, cdtime_t t, _Bool print_nano) /* {{{ */ { struct timespec t_spec; struct tm t_tm; char base[20]; /* 2006-01-02T15:04:05 */ char nano[11]; /* .999999999 */ char zone[7]; /* +00:00 */ char *fields[] = {base, nano, zone}; size_t len; CDTIME_T_TO_TIMESPEC (t, &t_spec); NORMALIZE_TIMESPEC (t_spec); if (localtime_r (&t_spec.tv_sec, &t_tm) == NULL) { char errbuf[1024]; int status = errno; ERROR ("format_rfc3339: localtime_r failed: %s", sstrerror (status, errbuf, sizeof (errbuf))); return (status); } len = strftime (base, sizeof (base), "%Y-%m-%dT%H:%M:%S", &t_tm); if (len == 0) return ENOMEM; if (print_nano) ssnprintf (nano, sizeof (nano), ".%09ld", (long) t_spec.tv_nsec); else sstrncpy (nano, "", sizeof (nano)); format_zone (zone, sizeof (zone)); if (strjoin (buffer, buffer_size, fields, STATIC_ARRAY_SIZE (fields), "") < 0) return ENOMEM; return 0; } /* }}} int cdtime_to_rfc3339nano */