adding

diff --git a/lib/iso3307.c b/lib/iso3307.c
new file mode 100644 (file)
index 0000000..24d373e
--- /dev/null
+++ b/lib/iso3307.c
@@ -0,0 +1,50 @@
+#include "config.h"
+
+#if HAVE_STDIO_H
+#include <stdio.h>
+#endif
+#if HAVE_STRING_H
+#include <string.h>
+#endif
+#if HAVE_CTYPE_H
+#include <ctype.h>
+#endif
+#if HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#if HAVE_TIME_H
+#include <time.h>
+#endif
+#if HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+
+
+#define ASCII_DIGIT(c) ((c)-48)
+
+time_t
+parse_iso3307_time(const char *buf)
+{
+/* buf is an ISO 3307 style time: YYYYMMDDHHMMSS or YYYYMMDDHHMMSS.xxx */
+    struct tm tms;
+    time_t t;
+    while (*buf == ' ' || *buf == '\t')
+        buf++;
+    if ((int) strlen(buf) < 14)
+        return 0;
+    memset(&tms, '\0', sizeof(struct tm));
+    tms.tm_year = (ASCII_DIGIT(buf[2]) * 10) + ASCII_DIGIT(buf[3]);
+    tms.tm_mon = (ASCII_DIGIT(buf[4]) * 10) + ASCII_DIGIT(buf[5]) - 1;
+    tms.tm_mday = (ASCII_DIGIT(buf[6]) * 10) + ASCII_DIGIT(buf[7]);
+    tms.tm_hour = (ASCII_DIGIT(buf[8]) * 10) + ASCII_DIGIT(buf[9]);
+    tms.tm_min = (ASCII_DIGIT(buf[10]) * 10) + ASCII_DIGIT(buf[11]);
+    tms.tm_sec = (ASCII_DIGIT(buf[12]) * 10) + ASCII_DIGIT(buf[13]);
+#if HAVE_TIMEGM
+    t = timegm(&tms);
+#elif HAVE_MKTIME
+    t = mktime(&tms);
+#else
+    t = (time_t) 0;
+#endif
+    return t;
+}