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. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by the University of
  19  *      California, Berkeley and its contributors.
  20  * 4. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  *      @(#)shell.h     8.2 (Berkeley) 5/4/95
  37  * $FreeBSD: src/bin/sh/shell.h,v 1.17 2004/04/06 20:06:51 markm Exp $
  38  * $DragonFly: src/bin/sh/shell.h,v 1.3 2007/01/04 14:06:21 pavalos Exp $
  39  */
  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 $HOME/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  * Type of used arithmetics. SUSv3 requires us to have at least signed long.
  57  */
  58 typedef long arith_t;
  59 #define ARITH_FORMAT_STR  "%ld"
  60 #define atoarith_t(arg)  strtol(arg, NULL, 0)
  61 #define strtoarith_t(nptr, endptr, base)  strtol(nptr, endptr, base)
  62
  63 typedef void *pointer;
  64 #define STATIC  static
  65 #define MKINIT  /* empty */
  66
  67 #include <sys/cdefs.h>
  68
  69 extern char nullstr[1];         /* null string */
  70
  71 #ifdef DEBUG
  72 #define TRACE(param)  sh_trace param
  73 #else
  74 #define TRACE(param)
  75 #endif