s format

SCCS-file: strftime.c
SCCS-SID: 7.45

strftime.c

@@ -275,6 +275,25 @@ const char * const	ptlim;
 			case 'S':
 				pt = _conv(t->tm_sec, "%02d", pt, ptlim);
 				continue;
+			case 's':
+				{
+					struct tm	tm;
+					char		buf[INT_STRLEN_MAXIMUM(
+								time_t) + 1];
+
+					tm = *t;
+					(void) sprintf(buf,
+#if ((time_t) -1) < 0	/* if time_t is signed */
+						"%ld", (long)
+#endif /* time_t is signed */
+#if ((time_t) -1) >= 0	/* if time_t is unsigned */
+						"%lu", (unsigned long)
+#endif /* time_t is signed */
+
+						mktime(&tm));
+					pt = _add(buf, pt, ptlim);
+				}
+				continue;
 			case 'T':
 				pt = _fmt("%H:%M:%S", t, pt, ptlim);
 				continue;