1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Kenneth Almquist.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#ifndef SHELL_H_
36#define SHELL_H_
37
38#if !defined(FEATURE_SH_HISTEDIT) || !FEATURE_SH_HISTEDIT
39#ifndef NO_HISTORY
40#define NO_HISTORY
41#endif
42#endif
43
44#include "sig.h"
45
46#include <fcntl.h>
47#include <inttypes.h>
48#include <stdint.h>
49#include <sys/ioctl.h>
50#include <sys/stat.h>
51#include <sys/types.h>
52#include <unistd.h>
53
54#ifndef tcsetsid
55#if defined(__linux__) || defined(__CYGWIN__)
56#define tcsetsid(fd, pid) ioctl((fd), TIOCSCTTY, 0)
57#endif
58#endif
59
60#ifndef ALIGN
61#define ALIGNBYTES (sizeof(void *) - 1)
62#define ALIGN(p) (((uintptr_t)(p) + ALIGNBYTES) & ~ALIGNBYTES)
63#endif
64
65#ifndef __dead2
66#define __dead2 __attribute__((__noreturn__))
67#endif
68#ifndef __unused
69#define __unused __attribute__((__unused__))
70#endif
71#ifndef __nonstring
72#if defined(__has_attribute)
73#if __has_attribute(__nonstring__)
74#define __nonstring __attribute__((__nonstring__))
75#elif __has_attribute(nonstring)
76#define __nonstring __attribute__((nonstring))
77#endif
78#endif
79#endif
80#ifndef __nonstring
81#define __nonstring
82#endif
83#ifndef __printf0like
84#define __printf0like(n, m) __attribute__((__format__(__printf__, n, m)))
85#endif
86#ifndef __printflike
87#define __printflike(n, m) __attribute__((__format__(__printf__, n, m)))
88#endif
89
90#ifndef O_VERIFY
91#define O_VERIFY 0
92#endif
93
94#ifndef CLOCK_UPTIME
95#define CLOCK_UPTIME CLOCK_MONOTONIC
96#endif
97
98#ifndef timespecsub
99#define timespecsub(a, b, result) \
100 do { \
101 (result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
102 (result)->tv_nsec = (a)->tv_nsec - (b)->tv_nsec; \
103 if ((result)->tv_nsec < 0) { \
104 --(result)->tv_sec; \
105 (result)->tv_nsec += 1000000000L; \
106 } \
107 } while (0)
108#endif
109
110#ifndef MAXLOGNAME
111#ifdef LOGIN_NAME_MAX
112#define MAXLOGNAME LOGIN_NAME_MAX
113#else
114#define MAXLOGNAME 32
115#endif
116#endif
117
118#ifndef __DECONST
119#define __DECONST(type, var) ((type)(uintptr_t)(const void *)(var))
120#endif
121
122#ifndef eaccess
123#ifdef AT_EACCESS
124#define eaccess(path, mode) faccessat(AT_FDCWD, (path), (mode), AT_EACCESS)
125#else
126#define eaccess(path, mode) access((path), (mode))
127#endif
128#endif
129
130/*
131 * The follow should be set to reflect the type of system you have:
132 * JOBS -> 1 if you have Berkeley job control, 0 otherwise.
133 * define DEBUG=1 to compile in debugging (set global "debug" to turn on)
134 * define DEBUG=2 to compile in and turn on debugging.
135 *
136 * When debugging is on, debugging info will be written to ./trace and
137 * a quit signal will generate a core dump.
138 */
139
140
141#define JOBS 1
142/* #define DEBUG 1 */
143
144/*
145 * Type of used arithmetic. SUSv3 requires us to have at least signed long.
146 */
147typedef intmax_t arith_t;
148#define ARITH_FORMAT_STR "%" PRIdMAX
149#define ARITH_MIN INTMAX_MIN
150#define ARITH_MAX INTMAX_MAX
151
152typedef void *pointer;
153
154#if defined(__has_include)
155#if __has_include(<sys/cdefs.h>)
156#include <sys/cdefs.h>
157#endif
158#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__)
159#include <sys/cdefs.h>
160#endif
161
162extern char nullstr[1]; /* null string */
163
164#ifdef DEBUG
165#define TRACE(param) sh_trace param
166#else
167#define TRACE(param)
168#endif
169
170#endif /* !SHELL_H_ */
