X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fstrftime.c;h=6d8ca0c53e8b57995a32fa5ea06533a048bcd90e;hb=b4e2cc126eeaa01f81c71bf233f7b69dba38d998;hp=569a3d448e504bca02e6b5db42721eaf747bb82b;hpb=10074829b405d5ada97315d30d400e6dd42d48ae;p=gnulib.git

diff --git a/lib/strftime.c b/lib/strftime.c
index 569a3d448..6d8ca0c53 100644
--- a/lib/strftime.c
+++ b/lib/strftime.c
@@ -46,6 +46,7 @@
    %p	locale's AM or PM
    %r	time, 12-hour (hh:mm:ss [AP]M)
    %R	time, 24-hour (hh:mm)
+   %s	time in seconds since 00:00:00, Jan 1, 1970 (a nonstandard extension)
    %S	second (00..61)
    %T	time, 24-hour (hh:mm:ss)
    %X	locale's time representation (%H:%M:%S)
@@ -84,6 +85,7 @@
 #endif
 #endif
 
+#include <stdio.h>
 #include <sys/types.h>
 #if defined(TM_IN_SYS_TIME) || (!defined(HAVE_TM_ZONE) && !defined(HAVE_TZNAME))
 #include <sys/time.h>
@@ -91,6 +93,10 @@
 #include <time.h>
 #endif
 
+#ifndef STDC_HEADERS
+time_t mktime ();
+#endif
+
 #if defined(HAVE_TZNAME)
 extern char *tzname[2];
 #endif
@@ -175,7 +181,7 @@ add_num3 (string, num, max, pad)
 static int
 add_str (to, from, max)
      char *to;
-     char *from;
+     const char *from;
      int max;
 {
   int i;
@@ -185,6 +191,25 @@ add_str (to, from, max)
   return i;
 }
 
+static int
+add_num_time_t (string, max, num)
+     char *string;
+     int max;
+     time_t num;
+{
+  /* This buffer is large enough to hold the character representation
+     (including the trailing NUL) of any unsigned decimal quantity
+     whose binary representation fits in 128 bits.  */
+  char buf[40];
+  int length;
+
+  if (sizeof (num) > 16)
+    abort ();
+  sprintf (buf, "%lu", (unsigned long) num);
+  length = add_str (string, buf, max);
+  return length;
+}
+
 /* Return the week in the year of the time in TM, with the weeks
    starting on Sundays. */
 
@@ -330,6 +355,16 @@ strftime (string, max, format, tm)
 	      length +=
 		strftime (&string[length], max - length, "%H:%M", tm);
 	      break;
+
+	    case 's':
+	      {
+		struct tm writable_tm;
+		writable_tm = *tm;
+		length += add_num_time_t (&string[length], max - length,
+					  mktime (&writable_tm));
+	      }
+	      break;
+
 	    case 'S':
 	      length +=
 		add_num2 (&string[length], tm->tm_sec, max - length, pad);