Added functions for parsing and formatting of dates.

2 files changed, 31 insertions, 0 deletions

diff --git a/sysdep/unix/io.c b/sysdep/unix/io.c
index 6d44f80..39cf200 100644
--- a/sysdep/unix/io.c
+++ b/sysdep/unix/io.c
@@ -217,6 +217,33 @@ tm_shot(void)
     }
 }
 
+bird_clock_t
+tm_parse_date(char *x)
+{
+  struct tm tm;
+  int n;
+  time_t t;
+
+  if (sscanf(x, "%d-%d-%d%n", &tm.tm_mday, &tm.tm_mon, &tm.tm_year, &n) != 3 || x[n])
+    return 0;
+  tm.tm_mon--;
+  tm.tm_year -= 1900;
+  tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
+  t = mktime(&tm);
+  if (t == (time_t) -1)
+    return 0;
+  return t;
+}
+
+void
+tm_format_date(char *x, bird_clock_t t)
+{
+  struct tm *tm;
+
+  tm = localtime(&t);
+  sprintf(x, "%02d-%02d-%04d", tm->tm_mday, tm->tm_mon+1, tm->tm_year+1900);
+}
+
 /*
  *	Sockets
  */
diff --git a/sysdep/unix/timer.h b/sysdep/unix/timer.h
index 10351a6..afb2668 100644
--- a/sysdep/unix/timer.h
+++ b/sysdep/unix/timer.h
@@ -32,4 +32,8 @@ void tm_dump_all(void);
 
 extern bird_clock_t now;		/* Time in seconds since unknown epoch */
 
+bird_clock_t tm_parse_date(char *);	/* Convert date to bird_clock_t */
+void tm_format_date(char *, bird_clock_t);	/* Convert bird_clock_t to date */
+#define TM_DATE_BUFFER_SIZE 12		/* Buffer size required by tm_format_date */
+
 #endif