216 lines
4.3 KiB
C
216 lines
4.3 KiB
C
/* System dependent declarations.
|
|
Copyright (C) 1988, 1989, 1992, 1993 Free Software Foundation, Inc.
|
|
|
|
This file is part of GNU DIFF.
|
|
|
|
GNU DIFF is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
GNU DIFF is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GNU DIFF; see the file COPYING. If not, write to
|
|
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|
|
|
/* We must define `volatile' and `const' first (the latter inside config.h),
|
|
so that they're used consistently in all system includes. */
|
|
#if !__STDC__
|
|
#ifndef volatile
|
|
#define volatile
|
|
#endif
|
|
#endif
|
|
#include "config.h"
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
|
|
#if __STDC__
|
|
#define PARAMS(args) args
|
|
#define VOID void
|
|
#else
|
|
#define PARAMS(args) ()
|
|
#define VOID char
|
|
#endif
|
|
|
|
#if STAT_MACROS_BROKEN
|
|
#undef S_ISBLK
|
|
#undef S_ISCHR
|
|
#undef S_ISDIR
|
|
#undef S_ISFIFO
|
|
#undef S_ISREG
|
|
#undef S_ISSOCK
|
|
#endif
|
|
#ifndef S_ISDIR
|
|
#define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
|
|
#endif
|
|
#ifndef S_ISREG
|
|
#define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)
|
|
#endif
|
|
#if !defined(S_ISBLK) && defined(S_IFBLK)
|
|
#define S_ISBLK(mode) (((mode) & S_IFMT) == S_IFBLK)
|
|
#endif
|
|
#if !defined(S_ISCHR) && defined(S_IFCHR)
|
|
#define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR)
|
|
#endif
|
|
#if !defined(S_ISFIFO) && defined(S_IFFIFO)
|
|
#define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFFIFO)
|
|
#endif
|
|
#if !defined(S_ISSOCK) && defined(S_IFSOCK)
|
|
#define S_ISSOCK(mode) (((mode) & S_IFMT) == S_IFSOCK)
|
|
#endif
|
|
|
|
#ifndef S_IXOTH
|
|
#define S_IXOTH 1
|
|
#endif
|
|
#ifndef S_IXGRP
|
|
#define S_IXGRP (S_IXOTH << 3)
|
|
#endif
|
|
#ifndef S_IXUSR
|
|
#define S_IXUSR (S_IXGRP << 3)
|
|
#endif
|
|
|
|
#if HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
#ifndef SEEK_SET
|
|
#define SEEK_SET 0
|
|
#endif
|
|
#ifndef SEEK_CUR
|
|
#define SEEK_CUR 1
|
|
#endif
|
|
|
|
#ifndef STDIN_FILENO
|
|
#define STDIN_FILENO 0
|
|
#endif
|
|
#ifndef STDOUT_FILENO
|
|
#define STDOUT_FILENO 1
|
|
#endif
|
|
#ifndef STDERR_FILENO
|
|
#define STDERR_FILENO 2
|
|
#endif
|
|
|
|
#if HAVE_TIME_H
|
|
#include <time.h>
|
|
#else
|
|
#include <sys/time.h>
|
|
#endif
|
|
|
|
#if HAVE_FCNTL_H
|
|
#include <fcntl.h>
|
|
#else
|
|
#include <sys/file.h>
|
|
#endif
|
|
|
|
#if !HAVE_DUP2
|
|
#define dup2(f,t) (close (t), fcntl (f,F_DUPFD,t))
|
|
#endif
|
|
|
|
#ifndef O_RDONLY
|
|
#define O_RDONLY 0
|
|
#endif
|
|
|
|
#if HAVE_SYS_WAIT_H
|
|
#ifndef _POSIX_VERSION
|
|
/* Prevent the NeXT prototype using union wait from causing problems. */
|
|
#define wait system_wait
|
|
#endif
|
|
#include <sys/wait.h>
|
|
#ifndef _POSIX_VERSION
|
|
#undef wait
|
|
#endif
|
|
#endif /* HAVE_SYS_WAIT_H */
|
|
|
|
#ifndef WEXITSTATUS
|
|
#define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8)
|
|
#undef WIFEXITED /* Avoid 4.3BSD incompatibility with Posix. */
|
|
#endif
|
|
#ifndef WIFEXITED
|
|
#define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
|
|
#endif
|
|
|
|
#if HAVE_ST_BLKSIZE
|
|
#define STAT_BLOCKSIZE(s) (s).st_blksize
|
|
#else
|
|
#define STAT_BLOCKSIZE(s) (8 * 1024)
|
|
#endif
|
|
|
|
#if DIRENT || defined (_POSIX_VERSION)
|
|
#include <dirent.h>
|
|
#else /* ! (DIRENT || defined (_POSIX_VERSION)) */
|
|
#if SYSNDIR
|
|
#include <sys/ndir.h>
|
|
#else
|
|
#if SYSDIR
|
|
#include <sys/dir.h>
|
|
#else
|
|
#include <ndir.h>
|
|
#endif
|
|
#endif
|
|
#ifdef dirent
|
|
#undef dirent
|
|
#endif
|
|
#define dirent direct
|
|
#endif /* ! (DIRENT || defined (_POSIX_VERSION)) */
|
|
|
|
#if HAVE_VFORK_H
|
|
#include <vfork.h>
|
|
#endif
|
|
|
|
#if HAVE_STDLIB_H
|
|
#include <stdlib.h>
|
|
#else
|
|
VOID *malloc ();
|
|
VOID *realloc ();
|
|
#endif
|
|
#ifndef getenv
|
|
char *getenv ();
|
|
#endif
|
|
|
|
#if HAVE_LIMITS_H
|
|
#include <limits.h>
|
|
#endif
|
|
#ifndef INT_MAX
|
|
#define INT_MAX 2147483647
|
|
#endif
|
|
#ifndef CHAR_BIT
|
|
#define CHAR_BIT 8
|
|
#endif
|
|
|
|
#if HAVE_STRING_H
|
|
#include <string.h>
|
|
#ifndef bzero
|
|
#define bzero(s,n) memset (s,0,n)
|
|
#endif
|
|
#else /* !HAVE_STRING_H */
|
|
#include <strings.h>
|
|
#ifndef strchr
|
|
#define strchr index
|
|
#endif
|
|
#ifndef strrchr
|
|
#define strrchr rindex
|
|
#endif
|
|
#ifndef memcpy
|
|
#define memcpy(d,s,n) bcopy (s,d,n)
|
|
#endif
|
|
#ifndef memcmp
|
|
#define memcmp(s1,s2,n) bcmp (s1,s2,n)
|
|
#endif
|
|
#endif /* !HAVE_STRING_H */
|
|
#if !HAVE_MEMCHR
|
|
char *memchr ();
|
|
#endif
|
|
|
|
#include <errno.h>
|
|
#if !STDC_HEADERS
|
|
extern int errno;
|
|
#endif
|
|
|
|
#define min(a,b) ((a) <= (b) ? (a) : (b))
|
|
#define max(a,b) ((a) >= (b) ? (a) : (b))
|