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      1 /*	$NetBSD: extern.h,v 1.32 2024/10/01 16:35:13 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 <sys/types.h>	/* off_t */
     28 #include <stdarg.h>
     29 #include <ucontext.h>
     30 
     31 #ifndef __LOCALE_T_DECLARED
     32 typedef struct _locale		*locale_t;
     33 #define __LOCALE_T_DECLARED
     34 #endif /* __LOCALE_T_DECLARED */
     35 
     36 __BEGIN_DECLS
     37 extern char *__minbrk;
     38 extern sigset_t __sigintr;
     39 extern char **environ;
     40 int __getcwd(char *, size_t);
     41 int __getlogin(char *, size_t);
     42 int __setlogin(const char *);
     43 int __posix_fadvise50(int, int, off_t, off_t, int);
     44 void  __section(".text.startup") __attribute__((__visibility__("hidden")))
     45     __libc_atomic_init(void);
     46 void _resumecontext(void) __dead;
     47 __dso_hidden int	_strerror_lr(int, char *, size_t, locale_t);
     48 const char *__strerror(int , char *, size_t);
     49 const char *__strsignal(int , char *, size_t);
     50 char *__dtoa(double, int, int, int *, int *, char **);
     51 void __freedtoa(char *);
     52 int __sysctl(const int *, unsigned int, void *, size_t *, const void *, size_t);
     53 
     54 struct sigaction;
     55 int __sigaction_sigtramp(int, const struct sigaction *,
     56     struct sigaction *, const void *, int);
     57 
     58 /* is "long double" and "double" different? */
     59 #if (__LDBL_MANT_DIG__ != __DBL_MANT_DIG__) || \
     60     (__LDBL_MAX_EXP__ != __DBL_MAX_EXP__)
     61 #define WIDE_DOUBLE
     62 #endif
     63 
     64 #ifdef WIDE_DOUBLE
     65 char *__hldtoa(long double, const char *, int, int *, int *,  char **);
     66 char *__ldtoa(long double *, int, int, int *, int *, char **);
     67 #endif
     68 char *__hdtoa(double, const char *, int, int *, int *, char **);
     69 
     70 void	_malloc_prefork(void);
     71 void	_malloc_postfork(void);
     72 void	_malloc_postfork_child(void);
     73 
     74 int	_sys_setcontext(const ucontext_t *);
     75 
     76 int	strerror_r_ss(int, char *, size_t);
     77 __aconst char *strerror_ss(int);
     78 
     79 __END_DECLS
     80