bin/sh/shell.h

   1 /*-
   2  * Copyright (c) 1991, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * Kenneth Almquist.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the name of the University nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  *      @(#)shell.h     8.2 (Berkeley) 5/4/95
  33  * $FreeBSD$
  34  */
  35
  36 #ifndef SHELL_H_
  37 #define SHELL_H_
  38
  39 #include <inttypes.h>
  40
  41 /*
  42  * The follow should be set to reflect the type of system you have:
  43  *      JOBS -> 1 if you have Berkeley job control, 0 otherwise.
  44  *      define DEBUG=1 to compile in debugging (set global "debug" to turn on)
  45  *      define DEBUG=2 to compile in and turn on debugging.
  46  *
  47  * When debugging is on, debugging info will be written to ./trace and
  48  * a quit signal will generate a core dump.
  49  */
  50
  51
  52 #define JOBS 1
  53 /* #define DEBUG 1 */
  54
  55 /*
  56  * Allow compilation with older versions of DragonFly or on
  57  * systems without these features.
  58  */
  59 #ifdef F_DUPFD_CLOEXEC
  60 #define F_DUPFD_CLOEXEC_MAYBE   F_DUPFD_CLOEXEC
  61 #else
  62 #define F_DUPFD_CLOEXEC_MAYBE   F_DUPFD
  63 #endif
  64
  65 #ifdef O_CLOEXEC
  66 #define O_CLOEXEC_MAYBE         O_CLOEXEC
  67 #else
  68 #define O_CLOEXEC_MAYBE         0
  69 #endif
  70
  71 /*
  72  * Type of used arithmetics. SUSv3 requires us to have at least signed long.
  73  */
  74 typedef intmax_t arith_t;
  75 #define ARITH_FORMAT_STR  "%" PRIdMAX
  76 #define atoarith_t(arg)  strtoimax(arg, NULL, 0)
  77 #define strtoarith_t(nptr, endptr, base)  strtoimax(nptr, endptr, base)
  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_ */