1/*
2 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
7 * Reserved.  This file contains Original Code and/or Modifications of
8 * Original Code as defined in and that are subject to the Apple Public
9 * Source License Version 1.0 (the 'License').  You may not use this file
10 * except in compliance with the License.  Please obtain a copy of the
11 * License at http://www.apple.com/publicsource and read it before using
12 * this file.
13 *
14 * The Original Code and all software distributed under the License are
15 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
19 * License for the specific language governing rights and limitations
20 * under the License."
21 *
22 * @APPLE_LICENSE_HEADER_END@
23 */
24/*	$OpenBSD: yplog.c,v 1.5 1997/08/09 22:44:04 maja Exp $ */
25
26/*
27 * Copyright (c) 1996 Charles D. Cranor
28 * All rights reserved.
29 *
30 * Redistribution and use in source and binary forms, with or without
31 * modification, are permitted provided that the following conditions
32 * are met:
33 * 1. Redistributions of source code must retain the above copyright
34 *    notice, this list of conditions and the following disclaimer.
35 * 2. Redistributions in binary form must reproduce the above copyright
36 *    notice, this list of conditions and the following disclaimer in the
37 *    documentation and/or other materials provided with the distribution.
38 * 3. All advertising materials mentioning features or use of this software
39 *    must display the following acknowledgement:
40 *      This product includes software developed by Charles D. Cranor.
41 * 4. The name of the author may not be used to endorse or promote products
42 *    derived from this software without specific prior written permission.
43 *
44 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
45 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
46 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
47 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
48 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
49 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
50 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
51 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
52 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
53 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
54 */
55
56/*
57 * yplog.c: replacement yplog routines for
58 * Mats O Jansson's ypserv program, as added by
59 * Chuck Cranor.
60 */
61
62#include <stdio.h>
63#include <unistd.h>
64#include <sys/types.h>
65#include <sys/stat.h>
66#include <time.h>
67#ifdef __STDC__
68#include <stdarg.h>
69#else
70#include <varargs.h>
71#endif
72#include "yplog.h"
73
74static FILE	*logfp = NULL;		/* the log file */
75
76/*
77 * yplog(): like a printf, but to the log file.   does the flush
78 * and data for you.
79 */
80
81void
82#ifdef __STDC__
83yplog(const char *fmt, ...)
84#else
85yplog(fmt, va_alist)
86	char *fmt;
87	va_dcl
88#endif
89{
90	va_list ap;
91
92#ifdef __STDC__
93	va_start(ap, fmt);
94#else
95	va_start(ap);
96#endif
97	vyplog(fmt, ap);
98	va_end(ap);
99}
100
101/*
102 * vyplog() support routine for yplog()
103 */
104
105void
106vyplog(fmt, ap)
107	register const char *fmt;
108	va_list ap;
109{
110        time_t t;
111
112	if (logfp == NULL)
113		return;
114	(void)time(&t);
115	fprintf(logfp,"%.15s ", ctime(&t) + 4);
116	vfprintf(logfp, fmt, ap);
117	fprintf(logfp,"\n");
118	fflush(logfp);
119}
120
121/*
122 * open log
123 */
124
125void
126ypopenlog()
127{
128	static char logfn[] = "/var/yp/ypserv.log";
129
130	if (access(logfn, W_OK) == -1)
131		return;
132	logfp = fopen("/var/yp/ypserv.log", "a");
133	if (logfp == NULL)
134		return;
135	yplog("yplog opened");
136}
137
138/*
139 * close log
140 */
141
142void
143ypcloselog()
144{
145	if (logfp) {
146		yplog("yplog closed");
147		fclose(logfp);
148		logfp = NULL;
149	}
150}
151