1/*-
2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)compat.h 8.13 (Berkeley) 2/21/94
34 */
35
36#ifndef _COMPAT_H_
37#define _COMPAT_H_
38
39#include <sys/types.h>
40
41/*
42 * If your system doesn't typedef u_long, u_short, or u_char, change
43 * the 0 to a 1.
44 */
45#if 0
46typedef unsigned char u_char; /* 4.[34]BSD names. */
47typedef unsigned int u_int;
48typedef unsigned long u_long;
49typedef unsigned short u_short;
50#endif
51
52/* If your system doesn't typedef size_t, change the 0 to a 1. */
53#if 0
54typedef unsigned int size_t; /* POSIX, 4.[34]BSD names. */
55#endif
56
57/* If your system doesn't typedef ssize_t, change the 0 to a 1. */
58#if 0
59typedef int ssize_t; /* POSIX names. */
60#endif
61
62/*
63 * If your system doesn't have the POSIX type for a signal mask,
64 * change the 0 to a 1.
65 */
66#if 0 /* POSIX 1003.1 signal mask type. */
67typedef unsigned int sigset_t;
68#endif
69
70/*
71 * If your system's vsprintf returns a char *, not an int,
72 * change the 0 to a 1.
73 */
74#if 0
75#define VSPRINTF_CHARSTAR
76#endif
77
78/*
79 * If you don't have POSIX 1003.1 signals, the signal code surrounding the
80 * temporary file creation is intended to block all of the possible signals
81 * long enough to create the file and unlink it. All of this stuff is
82 * intended to use old-style BSD calls to fake POSIX 1003.1 calls.
83 */
84#ifdef NO_POSIX_SIGNALS
85#define sigemptyset(set) (*(set) = 0)
86#define sigfillset(set) (*(set) = ~(sigset_t)0, 0)
87#define sigaddset(set,signo) (*(set) |= sigmask(signo), 0)
88#define sigdelset(set,signo) (*(set) &= ~sigmask(signo), 0)
89#define sigismember(set,signo) ((*(set) & sigmask(signo)) != 0)
90
91#define SIG_BLOCK 1
92#define SIG_UNBLOCK 2
93#define SIG_SETMASK 3
94
95static int __sigtemp; /* For the use of sigprocmask */
96
97/* Repeated test of oset != NULL is to avoid "*0". */
98#define sigprocmask(how, set, oset) \
99 ((__sigtemp = \
100 (((how) == SIG_BLOCK) ? \
101 sigblock(0) | *(set) : \
102 (((how) == SIG_UNBLOCK) ? \
103 sigblock(0) & ~(*(set)) : \
104 ((how) == SIG_SETMASK ? \
105 *(set) : sigblock(0))))), \
106 ((oset) ? (*(oset ? oset : set) = sigsetmask(__sigtemp)) : \
107 sigsetmask(__sigtemp)), 0)
108#endif
109
110/*
111 * If your system doesn't have an include file with the appropriate
112 * byte order set, make sure you specify the correct one.
113 */
114#ifndef BYTE_ORDER
115#define LITTLE_ENDIAN 1234 /* LSB first: i386, vax */
116#define BIG_ENDIAN 4321 /* MSB first: 68000, ibm, net */
117#define BYTE_ORDER BIG_ENDIAN /* Set for your system. */
118#endif
119
120#if defined(SYSV) || defined(SYSTEM5)
121#define index(a, b) strchr(a, b)
122#define rindex(a, b) strrchr(a, b)
123#define bzero(a, b) memset(a, 0, b)
124#define bcmp(a, b, n) memcmp(a, b, n)
125#define bcopy(a, b, n) memmove(b, a, n)
126#endif
127
128#if defined(BSD) || defined(BSD4_3)
129#define strchr(a, b) index(a, b)
130#define strrchr(a, b) rindex(a, b)
131#define memcmp(a, b, n) bcmp(a, b, n)
132#ifndef memmove
133#define memmove(a, b, n) bcopy(b, a, n)
134#endif
135#endif
136
137/*
138 * 32-bit machine. The db routines are theoretically independent of
139 * the size of u_shorts and u_longs, but I don't know that anyone has
140 * ever actually tried it. At a minimum, change the following #define's
141 * if you are trying to compile on a different type of system.
142 */
143#ifndef USHRT_MAX
144#define USHRT_MAX 0xFFFF
145#define ULONG_MAX 0xFFFFFFFF
146#endif
147
148#ifndef O_ACCMODE /* POSIX 1003.1 access mode mask. */
149#define O_ACCMODE (O_RDONLY|O_WRONLY|O_RDWR)
150#endif
151
152#ifndef _POSIX2_RE_DUP_MAX /* POSIX 1003.2 RE limit. */
153#define _POSIX2_RE_DUP_MAX 255
154#endif
155
156/*
157 * If you can't provide lock values in the open(2) call. Note, this
158 * allows races to happen.
159 */
160#ifndef O_EXLOCK /* 4.4BSD extension. */
161#define O_EXLOCK 0
162#endif
163
164#ifndef O_SHLOCK /* 4.4BSD extension. */
165#define O_SHLOCK 0
166#endif
167
168#ifndef EFTYPE
169#define EFTYPE EINVAL /* POSIX 1003.1 format errno. */
170#endif
171
172#ifndef WCOREDUMP /* 4.4BSD extension */
173#define WCOREDUMP(a) 0
174#endif
175
176#ifndef STDERR_FILENO
177#define STDIN_FILENO 0 /* ANSI C #defines */
178#define STDOUT_FILENO 1
179#define STDERR_FILENO 2
180#endif
181
182#ifndef SEEK_END
183#define SEEK_SET 0 /* POSIX 1003.1 seek values */
184#define SEEK_CUR 1
185#define SEEK_END 2
186#endif
187
188#ifndef _POSIX_VDISABLE /* POSIX 1003.1 disabling char. */
189#define _POSIX_VDISABLE 0 /* Some systems used 0. */
190#endif
191
192#ifndef TCSASOFT /* 4.4BSD extension. */
193#define TCSASOFT 0
194#endif
195
196#ifndef _POSIX2_RE_DUP_MAX /* POSIX 1003.2 values. */
197#define _POSIX2_RE_DUP_MAX 255
198#endif
199
200#ifndef NULL /* ANSI C #defines NULL everywhere. */
201#define NULL 0
202#endif
203
204#ifndef MAX /* Usually found in <sys/param.h>. */
205#define MAX(_a,_b) ((_a)<(_b)?(_b):(_a))
206#endif
207#ifndef MIN /* Usually found in <sys/param.h>. */
208#define MIN(_a,_b) ((_a)<(_b)?(_a):(_b))
209#endif
210
211/* Default file permissions. */
212#ifndef DEFFILEMODE /* 4.4BSD extension. */
213#define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
214#endif
215
216#ifndef S_ISDIR /* POSIX 1003.1 file type tests. */
217#define S_ISDIR(m) ((m & 0170000) == 0040000) /* directory */
218#define S_ISCHR(m) ((m & 0170000) == 0020000) /* char special */
219#define S_ISBLK(m) ((m & 0170000) == 0060000) /* block special */
220#define S_ISREG(m) ((m & 0170000) == 0100000) /* regular file */
221#define S_ISFIFO(m) ((m & 0170000) == 0010000) /* fifo */
222#endif
223#ifndef S_ISLNK /* BSD POSIX 1003.1 extensions */
224#define S_ISLNK(m) ((m & 0170000) == 0120000) /* symbolic link */
225#define S_ISSOCK(m) ((m & 0170000) == 0140000) /* socket */
226#endif
227
228/* The type of a va_list. */
229#ifndef _BSD_VA_LIST_ /* 4.4BSD #define. */
230#define _BSD_VA_LIST_ char *
231#endif
232
233#endif /* !_COMPAT_H_ */
234