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extern.h revision 1.30 
      1 /*	$NetBSD: extern.h,v 1.30 2024/07/08 22:14:31 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 extern sigset_t __sigintr;
     38 extern char **environ;
     39 int __getcwd(char *, size_t);
     40 int __getlogin(char *, size_t);
     41 int __setlogin(const char *);
     42 int __posix_fadvise50(int, int, __off_t, __off_t, int);
     43 void  __section(".text.startup") __attribute__((__visibility__("hidden")))
     44     __libc_atomic_init(void);
     45 void _resumecontext(void) __dead;
     46 __dso_hidden int	_strerror_lr(int, char *, size_t, locale_t);
     47 const char *__strerror(int , char *, size_t);
     48 const char *__strsignal(int , char *, size_t);
     49 char *__dtoa(double, int, int, int *, int *, char **);
     50 void __freedtoa(char *);
     51 int __sysctl(const int *, unsigned int, void *, size_t *, const void *, size_t);
     52 
     53 struct sigaction;
     54 int __sigaction_sigtramp(int, const struct sigaction *,
     55     struct sigaction *, const void *, int);
     56 
     57 /* is "long double" and "double" different? */
     58 #if (__LDBL_MANT_DIG__ != __DBL_MANT_DIG__) || \
     59     (__LDBL_MAX_EXP__ != __DBL_MAX_EXP__)
     60 #define WIDE_DOUBLE
     61 #endif
     62 
     63 #ifdef WIDE_DOUBLE
     64 char *__hldtoa(long double, const char *, int, int *, int *,  char **);
     65 char *__ldtoa(long double *, int, int, int *, int *, char **);
     66 #endif
     67 char *__hdtoa(double, const char *, int, int *, int *, char **);
     68 
     69 void	_malloc_prefork(void);
     70 void	_malloc_postfork(void);
     71 void	_malloc_postfork_child(void);
     72 
     73 int	_sys_setcontext(const ucontext_t *);
     74 
     75 int	strerror_r_ss(int, char *, size_t);
     76 __aconst char *strerror_ss(int);
     77 
     78 __END_DECLS
     79