xref: /netbsd-src/lib/libc/include/extern.h (revision b5677b36047b601b9addaaa494a58ceae82c2a6c)
1 /*	$NetBSD: extern.h,v 1.16 2008/10/31 16:12:18 christos Exp $	*/
2 
3 /*
4  * Copyright (c) 1997 Christos Zoulas.  All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. All advertising materials mentioning features or use of this software
15  *    must display the following acknowledgement:
16  *	This product includes software developed by Christos Zoulas.
17  * 4. The name of the author may not be used to endorse or promote products
18  *    derived from this software without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 __BEGIN_DECLS
33 extern char *__minbrk;
34 int __getcwd(char *, size_t);
35 int __getlogin(char *, size_t);
36 int __setlogin(const char *);
37 void _resumecontext(void);
38 const char *__strerror(int , char *, size_t);
39 const char *__strsignal(int , char *, size_t);
40 char *__dtoa(double, int, int, int *, int *, char **);
41 void __freedtoa(char *);
42 int __sysctl(const int *, unsigned int, void *, size_t *, const void *, size_t);
43 
44 struct sigaction;
45 int __sigaction_sigtramp(int, const struct sigaction *,
46     struct sigaction *, const void *, int);
47 
48 #ifdef WIDE_DOUBLE
49 char *__hdtoa(double, const char *, int, int *, int *, char **);
50 char *__hldtoa(long double, const char *, int, int *, int *,  char **);
51 char *__ldtoa(long double *, int, int, int *, int *, char **);
52 #endif
53 
54 struct syslog_data;
55 void	syslog_ss(int, struct syslog_data *, const char *, ...)
56     __attribute__((__format__(__printf__,3,4)));
57 void	vsyslog_ss(int, struct syslog_data *, const char *, _BSD_VA_LIST_);
58 void    vsyslog_ss(int, struct syslog_data *, const char *, _BSD_VA_LIST_)
59     __attribute__((__format__(__printf__,3,0)));
60 void	syslogp_ss(int, struct syslog_data *, const char *, const char *,
61     const char *, ...) __attribute__((__format__(__printf__,5,0)));
62 void	vsyslogp_ss(int, struct syslog_data *, const char *, const char *,
63     const char *, _BSD_VA_LIST_) __attribute__((__format__(__printf__,5,0)));
64 
65 int	snprintf_ss(char * __restrict, size_t, const char * __restrict, ...)
66     __attribute__((__format__(__printf__, 3, 4)));
67 int	vsnprintf_ss(char * __restrict, size_t, const char * __restrict,
68     _BSD_VA_LIST_) __attribute__((__format__(__printf__, 3, 0)));
69 
70 void	_malloc_prefork(void);
71 void	_malloc_postfork(void);
72 
73 __END_DECLS
74