xref: /netbsd-src/lib/libc/gen/syslog_private.h (revision 388550b026d49b7f7b7480b1113bf82bb8d6a480)
1 /*	$NetBSD: syslog_private.h,v 1.4 2022/04/19 20:32:15 rillig Exp $	*/
2 
3 /*-
4  * Copyright (c) 2016 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Christos Zoulas.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #define DEC()							\
33 	do {							\
34 		if (prlen >= tbuf_left)				\
35 			prlen = tbuf_left - 1;			\
36 		p += prlen;					\
37 		tbuf_left -= prlen;				\
38 	} while (0)
39 
40 struct syslog_fun {
41 	size_t (*timefun)(char *, size_t);
42 	int  (*errfun)(int, char *, size_t);
43 	int __sysloglike(3, 0) (*prfun)(char *, size_t, const char *, va_list);
44 	int (*lock)(const struct syslog_data *);
45 	int (*unlock)(const struct syslog_data *);
46 };
47 
48 void _vxsyslogp_r(int, struct syslog_fun *, struct syslog_data *,
49     const char *, const char *, const char *, va_list) __sysloglike(6, 0);
50 void _openlog_unlocked_r(const char *, int, int, struct syslog_data *);
51 void _closelog_unlocked_r(struct syslog_data *);
52 
53 extern struct syslog_fun _syslog_ss_fun;
54