xref: /netbsd-src/lib/libc/include/extern.h (revision f4748aaa01faf324805f9747191535eb6600f82c)
1 /*	$NetBSD: extern.h,v 1.27 2023/04/04 19:26:06 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 #ifndef __LOCALE_T_DECLARED
31 typedef struct _locale		*locale_t;
32 #define __LOCALE_T_DECLARED
33 #endif /* __LOCALE_T_DECLARED */
34 
35 __BEGIN_DECLS
36 extern char *__minbrk;
37 int __getcwd(char *, size_t);
38 int __getlogin(char *, size_t);
39 int __setlogin(const char *);
40 void _resumecontext(void) __dead;
41 __dso_hidden int	_strerror_lr(int, char *, size_t, locale_t);
42 const char *__strerror(int , char *, size_t);
43 const char *__strsignal(int , char *, size_t);
44 char *__dtoa(double, int, int, int *, int *, char **);
45 void __freedtoa(char *);
46 int __sysctl(const int *, unsigned int, void *, size_t *, const void *, size_t);
47 
48 struct sigaction;
49 int __sigaction_sigtramp(int, const struct sigaction *,
50     struct sigaction *, const void *, int);
51 
52 /* is "long double" and "double" different? */
53 #if (__LDBL_MANT_DIG__ != __DBL_MANT_DIG__) || \
54     (__LDBL_MAX_EXP__ != __DBL_MAX_EXP__)
55 #define WIDE_DOUBLE
56 #endif
57 
58 #ifdef WIDE_DOUBLE
59 char *__hldtoa(long double, const char *, int, int *, int *,  char **);
60 char *__ldtoa(long double *, int, int, int *, int *, char **);
61 #endif
62 char *__hdtoa(double, const char *, int, int *, int *, char **);
63 
64 #ifndef __LIBC12_SOURCE__
65 struct syslog_data;
66 void	syslog_ss(int, struct syslog_data *, const char *, ...)
67     __RENAME(__syslog_ss60) __printflike(3, 4);
68 void    vsyslog_ss(int, struct syslog_data *, const char *, va_list)
69     __RENAME(__vsyslog_ss60) __printflike(3, 0);
70 void	syslogp_ss(int, struct syslog_data *, const char *, const char *,
71     const char *, ...) __RENAME(__syslogp_ss60) __printflike(5, 0);
72 void	vsyslogp_ss(int, struct syslog_data *, const char *, const char *,
73     const char *, va_list) __RENAME(__vsyslogp_ss60) __printflike(5, 0);
74 #endif
75 
76 void	_malloc_prefork(void);
77 void	_malloc_postfork(void);
78 void	_malloc_postfork_child(void);
79 
80 int	_sys_setcontext(const ucontext_t *);
81 
82 int	strerror_r_ss(int, char *, size_t);
83 __aconst char *strerror_ss(int);
84 
85 __END_DECLS
86