bin/sh/shell.h

   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  *      @(#)shell.h     8.2 (Berkeley) 5/4/95
  35  * $FreeBSD: head/bin/sh/shell.h 343981 2019-02-10 22:23:05Z jilles $
  36  */
  37
  38 #ifndef SHELL_H_
  39 #define SHELL_H_
  40
  41 #include <inttypes.h>
  42
  43 /*
  44  * The follow should be set to reflect the type of system you have:
  45  *      JOBS -> 1 if you have Berkeley job control, 0 otherwise.
  46  *      define DEBUG=1 to compile in debugging (set global "debug" to turn on)
  47  *      define DEBUG=2 to compile in and turn on debugging.
  48  *
  49  * When debugging is on, debugging info will be written to ./trace and
  50  * a quit signal will generate a core dump.
  51  */
  52
  53
  54 #define JOBS 1
  55 /* #define DEBUG 1 */
  56
  57 /*
  58  * Allow compilation with older versions of DragonFly or on
  59  * systems without these features.
  60  */
  61 #ifdef F_DUPFD_CLOEXEC
  62 #define F_DUPFD_CLOEXEC_MAYBE           F_DUPFD_CLOEXEC
  63 #else
  64 #define F_DUPFD_CLOEXEC_MAYBE           F_DUPFD
  65 #endif
  66
  67 #ifdef O_CLOEXEC
  68 #define O_CLOEXEC_MAYBE         O_CLOEXEC
  69 #else
  70 #define O_CLOEXEC_MAYBE         0
  71 #endif
  72
  73 /*
  74  * Type of used arithmetics. SUSv3 requires us to have at least signed long.
  75  */
  76 typedef intmax_t arith_t;
  77 #define ARITH_FORMAT_STR  "%" PRIdMAX
  78 #define ARITH_MIN INTMAX_MIN
  79 #define ARITH_MAX INTMAX_MAX
  80
  81 typedef void *pointer;
  82
  83 #include <sys/cdefs.h>
  84
  85 extern char nullstr[1];         /* null string */
  86
  87 #ifdef DEBUG
  88 #define TRACE(param)  sh_trace param
  89 #else
  90 #define TRACE(param)
  91 #endif
  92
  93 #endif /* !SHELL_H_ */