xref: /netbsd-src/lib/libc/include/extern.h (revision a536ee5124e62c9a0051a252f7833dc8f50f44c9)
1 /*	$NetBSD: extern.h,v 1.21 2012/10/11 17:09:56 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  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  */
26 
27 #include <stdarg.h>
28 #include <ucontext.h>
29 
30 __BEGIN_DECLS
31 extern char *__minbrk;
32 int __getcwd(char *, size_t);
33 int __getlogin(char *, size_t);
34 int __setlogin(const char *);
35 void _resumecontext(void) __dead;
36 const char *__strerror(int , char *, size_t);
37 const char *__strsignal(int , char *, size_t);
38 char *__dtoa(double, int, int, int *, int *, char **);
39 void __freedtoa(char *);
40 int __sysctl(const int *, unsigned int, void *, size_t *, const void *, size_t);
41 
42 struct sigaction;
43 int __sigaction_sigtramp(int, const struct sigaction *,
44     struct sigaction *, const void *, int);
45 
46 #ifdef WIDE_DOUBLE
47 char *__hdtoa(double, const char *, int, int *, int *, char **);
48 char *__hldtoa(long double, const char *, int, int *, int *,  char **);
49 char *__ldtoa(long double *, int, int, int *, int *, char **);
50 #endif
51 
52 #ifndef __LIBC12_SOURCE__
53 struct syslog_data;
54 void	syslog_ss(int, struct syslog_data *, const char *, ...)
55     __RENAME(__syslog_ss60) __printflike(3, 4);
56 void    vsyslog_ss(int, struct syslog_data *, const char *, va_list)
57     __RENAME(__vsyslog_ss60) __printflike(3, 0);
58 void	syslogp_ss(int, struct syslog_data *, const char *, const char *,
59     const char *, ...) __RENAME(__syslogp_ss60) __printflike(5, 0);
60 void	vsyslogp_ss(int, struct syslog_data *, const char *, const char *,
61     const char *, va_list) __RENAME(__vsyslogp_ss60) __printflike(5, 0);
62 #endif
63 
64 int	snprintf_ss(char * __restrict, size_t, const char * __restrict, ...)
65     __printflike(3, 4);
66 int	vsnprintf_ss(char * __restrict, size_t, const char * __restrict,
67     va_list) __printflike(3, 0);
68 
69 void	_malloc_prefork(void);
70 void	_malloc_postfork(void);
71 
72 int	_sys_setcontext(const ucontext_t *);
73 
74 __END_DECLS
75