blob: c8424f75d6c23a988ad8a23a8df4bea492a557fa [file] [log] [blame]
/*
* Copyright (c) 2004
* Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <limits.h>
#include <signal.h>
#include <sys/types.h>
#ifndef SSIZE_MAX
#define SSIZE_MAX ((ssize_t)((size_t)-1 >> 1))
#endif
static inline void sigclearmask(void)
{
#ifdef HAVE_SIGSETMASK
sigsetmask(0);
#else
sigset_t set;
sigemptyset(&set);
sigprocmask(SIG_SETMASK, &set, 0);
#endif
}
#ifndef HAVE_MEMPCPY
void *mempcpy(void *, const void *, size_t);
#endif
#ifndef HAVE_STPCPY
char *stpcpy(char *, const char *);
#endif
#ifndef HAVE_STRCHRNUL
char *strchrnul(const char *, int);
#endif
#ifndef HAVE_STRSIGNAL
char *strsignal(int);
#endif
#ifndef HAVE_STRTOIMAX
#define strtoimax strtoll
#endif
#ifndef HAVE_STRTOUMAX
#define strtoumax strtoull
#endif
#ifndef HAVE_BSEARCH
void *bsearch(const void *, const void *, size_t, size_t,
int (*)(const void *, const void *));
#endif
#ifndef HAVE_KILLPG
static inline int killpg(pid_t pid, int signal)
{
#ifdef DEBUG
if (pid < 0)
abort();
#endif
return kill(-pid, signal);
}
#endif
#ifndef HAVE_SYSCONF
#define _SC_CLK_TCK 2
long sysconf(int) __attribute__((__noreturn__));
#endif
#if !HAVE_DECL_ISBLANK
int isblank(int c);
#endif
/*
* A trick to suppress uninitialized variable warning without generating any
* code
*/
#define uninitialized_var(x) x = x