add ctime(3) for certain archs usage

2 files changed, 80 insertions, 1 deletions

diff --git a/sys/lib/libsa/ctime.c b/sys/lib/libsa/ctime.c
new file mode 100644
index 00000000000..5d9b41f5db3
--- /dev/null
+++ b/sys/lib/libsa/ctime.c
@@ -0,0 +1,78 @@
+/*	$OpenBSD: ctime.c,v 1.1 1998/05/29 20:44:49 mickey Exp $	*/
+
+/*
+ * Copyright (c) 1998 Michael Shalayeff
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Michael Shalayeff.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/time.h>
+#include "stand.h"
+
+#define isleap(y) ((((y) % 4) == 0 && ((y) % 100) != 0) || ((y) % 400) == 0)
+
+char *
+ctime(clock)
+	const time_t	*clock;
+{
+	static const char wdays[][4] = {
+		"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
+	};
+	static const char months[][4] = {
+		"Jan", "Feb", "Mar", "Apr", "May", "Jun",
+		"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
+	};
+	static const u_int monthcnt[] = {
+		31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
+	};
+	static char buf[64];
+	int ss, mm, hh, wday, month, year;
+	register time_t tt = *clock;
+
+	ss = tt % 60;
+	tt /= 60;	/* minutes */
+	mm = tt % 60;
+	tt /= 60;	/* hours */
+	hh = tt % 24;
+	tt /= 24;	/* days */
+	wday = (4 + tt) % 7;	/* weekday, 'twas thursday when time started */
+
+	for (year = 1970; tt >= 365; year++)
+		tt -= isleap(year)? 366: 365;
+
+	tt++;	/* days are 1-based */
+
+	for (month = 0; tt > monthcnt[month]; month++)
+		tt -= monthcnt[month];
+
+	/* no field widths in printf() */
+	sprintf(buf, "%s %s %d %d:%d:%d %d\n",
+		((wday  < 0 || wday  >=  7)? "???": wdays[wday]),
+		((month < 0 || month >= 12)? "???": months[month]),
+		(int)tt, hh, mm, ss, year);
+	return buf;
+}
diff --git a/sys/lib/libsa/stand.h b/sys/lib/libsa/stand.h
index 5c35c9a4499..e7c2e65bb8d 100644
--- a/sys/lib/libsa/stand.h
+++ b/sys/lib/libsa/stand.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: stand.h,v 1.31 1998/02/24 22:14:44 weingart Exp $	*/
+/*	$OpenBSD: stand.h,v 1.32 1998/05/29 20:44:47 mickey Exp $	*/
 /*	$NetBSD: stand.h,v 1.18 1996/11/30 04:35:51 gwr Exp $	*/
 
 /*-
@@ -190,6 +190,7 @@ int	cnischar __P((void));
 int	cnspeed __P((dev_t, int));
 u_int	sleep __P((u_int));
 void	usleep __P((u_int));
+char *ctime __P((const time_t *));
 
 void	putchar __P((int));    
 int	getchar __P((void));