diff options
Diffstat (limited to 'sys/lib')
| -rw-r--r-- | sys/lib/libsa/ctime.c | 78 | ||||
| -rw-r--r-- | sys/lib/libsa/stand.h | 3 |
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)); |