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/*-
 * Copyright (c) 1991, 1993
 *  The Regents of the University of California.  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. ***REMOVED*** - see
 *    ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change
 * 4. Neither the name of the University nor the names of its contributors
 *    may 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.
 *
 *  @(#)compat.h  8.13 (Berkeley) 2/21/94
 */

#ifndef _COMPAT_H_
#define _COMPAT_H_

#include <sys/types.h>

/*
 * If your system doesn't typedef u_long, u_short, or u_char, change
 * the 0 to a 1.
 */
#if 0
typedef unsigned char u_char;   /* 4.[34]BSD names. */
typedef unsigned int  u_int;
typedef unsigned long u_long;
typedef unsigned short  u_short;
#endif

/* If your system doesn't typedef size_t, change the 0 to a 1. */
#if 0
typedef unsigned int  size_t;   /* POSIX, 4.[34]BSD names. */
#endif

/* If your system doesn't typedef ssize_t, change the 0 to a 1. */
#if 0
typedef int   ssize_t;  /* POSIX names. */
#endif

/*
 * If your system doesn't have the POSIX type for a signal mask,
 * change the 0 to a 1.
 */
#if 0 /* POSIX 1003.1 signal mask type. */
typedef unsigned int  sigset_t;
#endif

/*
 * If your system's vsprintf returns a char *, not an int,
 * change the 0 to a 1.
 */
#if defined(__sun) && !defined(__SVR4) /* SUNOS */
#define VSPRINTF_CHARSTAR
#endif
/*
 * If you don't have POSIX 1003.1 signals, the signal code surrounding the
 * temporary file creation is intended to block all of the possible signals
 * long enough to create the file and unlink it.  All of this stuff is
 * intended to use old-style BSD calls to fake POSIX 1003.1 calls.
 */
#ifdef NO_POSIX_SIGNALS
#define sigemptyset(set) (*(set) = 0)
#define sigfillset(set) (*(set) = ~(sigset_t)0, 0)
#define sigaddset(set, signo) (*(set) |= sigmask(signo), 0)
#define sigdelset(set, signo) (*(set) &= ~sigmask(signo), 0)
#define sigismember(set, signo) ((*(set)&sigmask(signo)) != 0)

#define SIG_BLOCK 1
#define SIG_UNBLOCK 2
#define SIG_SETMASK 3

static int __sigtemp; /* For the use of sigprocmask */

/* Repeated test of oset != NULL is to avoid "*0". */
#define sigprocmask(how, set, oset)                                                                                                                            \
    ((__sigtemp =                                                                                                                                              \
          (((how) == SIG_BLOCK) ? sigblock(0) | *(set) : (((how) == SIG_UNBLOCK) ? sigblock(0) & ~(*(set)) : ((how) == SIG_SETMASK ? *(set) : sigblock(0))))), \
     ((oset) ? (*(oset ? oset : set) = sigsetmask(__sigtemp)) : sigsetmask(__sigtemp)), 0)
#endif

/*
 * If your system doesn't have an include file with the appropriate
 * byte order set, make sure you specify the correct one.
 */
#ifndef BYTE_ORDER
#define LITTLE_ENDIAN 1234    /* LSB first: i386, vax */
#define BIG_ENDIAN 4321       /* MSB first: 68000, ibm, net */
#define BYTE_ORDER BIG_ENDIAN /* Set for your system. */
#endif

#if defined(SYSV) || defined(SYSTEM5) || defined(__sun)
#define index(a, b) strchr(a, b)
#define rindex(a, b) strrchr(a, b)
#define bzero(a, b) memset(a, 0, b)
#define bcmp(a, b, n) memcmp(a, b, n)
#define bcopy(a, b, n) memmove(b, a, n)
#endif

#if defined(BSD) || defined(BSD4_3)
#define strchr(a, b) index(a, b)
#define strrchr(a, b) rindex(a, b)
#define memcmp(a, b, n) bcmp(a, b, n)
#define memmove(a, b, n) bcopy(b, a, n)
#endif

/*
 * 32-bit machine.  The db routines are theoretically independent of
 * the size of u_shorts and u_longs, but I don't know that anyone has
 * ever actually tried it.  At a minimum, change the following #define's
 * if you are trying to compile on a different type of system.
 */
#ifndef USHRT_MAX
#define USHRT_MAX 0xFFFF
#define ULONG_MAX 0xFFFFFFFF
#endif

#ifndef O_ACCMODE /* POSIX 1003.1 access mode mask. */
#define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR)
#endif

#ifndef _POSIX2_RE_DUP_MAX /* POSIX 1003.2 RE limit. */
#define _POSIX2_RE_DUP_MAX 255
#endif

/*
 * If you can't provide lock values in the open(2) call.  Note, this
 * allows races to happen.
 */
#ifndef O_EXLOCK /* 4.4BSD extension. */
#define O_EXLOCK 0
#endif

#ifndef O_SHLOCK /* 4.4BSD extension. */
#define O_SHLOCK 0
#endif

#ifndef EFTYPE
#define EFTYPE EINVAL /* POSIX 1003.1 format errno. */
#endif

#ifndef WCOREDUMP /* 4.4BSD extension */
#define WCOREDUMP(a) 0
#endif

#ifndef STDERR_FILENO
#define STDIN_FILENO 0 /* ANSI C #defines */
#define STDOUT_FILENO 1
#define STDERR_FILENO 2
#endif

#ifndef SEEK_END
#define SEEK_SET 0 /* POSIX 1003.1 seek values */
#define SEEK_CUR 1
#define SEEK_END 2
#endif

#ifndef _POSIX_VDISABLE   /* POSIX 1003.1 disabling char. */
#define _POSIX_VDISABLE 0 /* Some systems used 0. */
#endif

#ifndef TCSASOFT /* 4.4BSD extension. */
#define TCSASOFT 0
#endif

#ifndef _POSIX2_RE_DUP_MAX /* POSIX 1003.2 values. */
#define _POSIX2_RE_DUP_MAX 255
#endif

#ifndef NULL /* ANSI C #defines NULL everywhere. */
#define NULL 0
#endif

#ifndef MAX /* Usually found in <sys/param.h>. */
#define MAX(_a, _b) ((_a) < (_b) ? (_b) : (_a))
#endif
#ifndef MIN /* Usually found in <sys/param.h>. */
#define MIN(_a, _b) ((_a) < (_b) ? (_a) : (_b))
#endif

/* Default file permissions. */
#ifndef DEFFILEMODE /* 4.4BSD extension. */
#define DEFFILEMODE (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)
#endif

#ifndef __sun
#ifndef S_ISDIR                                /* POSIX 1003.1 file type tests. */
#define S_ISDIR(m) ((m & 0170000) == 0040000)  /* directory */
#define S_ISCHR(m) ((m & 0170000) == 0020000)  /* char special */
#define S_ISBLK(m) ((m & 0170000) == 0060000)  /* block special */
#define S_ISREG(m) ((m & 0170000) == 0100000)  /* regular file */
#define S_ISFIFO(m) ((m & 0170000) == 0010000) /* fifo */
#endif
#ifndef S_ISLNK                                /* BSD POSIX 1003.1 extensions */
#define S_ISLNK(m) ((m & 0170000) == 0120000)  /* symbolic link */
#define S_ISSOCK(m) ((m & 0170000) == 0140000) /* socket */
#endif
#endif /* __sun */

/* The type of a va_list. */
#ifndef _BSD_VA_LIST_ /* 4.4BSD #define. */
#define _BSD_VA_LIST_ char*
#endif

#endif /* !_COMPAT_H_ */