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shell.h revision 1.16 
      1 /*	$NetBSD: shell.h,v 1.16 2003/01/22 20:36:04 dsl Exp $	*/
      2 
      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. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the University of
     21  *	California, Berkeley and its contributors.
     22  * 4. Neither the name of the University nor the names of its contributors
     23  *    may be used to endorse or promote products derived from this software
     24  *    without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  *
     38  *	@(#)shell.h	8.2 (Berkeley) 5/4/95
     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  *	SHORTNAMES -> 1 if your linker cannot handle long names.
     45  *	define BSD if you are running 4.2 BSD or later.
     46  *	define SYSV if you are running under System V.
     47  *	define DEBUG=1 to compile in debugging ('set -o debug' to turn on)
     48  *	define DEBUG=2 to compile in and turn on debugging.
     49  *	define DO_SHAREDVFORK to indicate that vfork(2) shares its address
     50  *	       with its parent.
     51  *
     52  * When debugging is on, debugging info will be written to ./trace and
     53  * a quit signal will generate a core dump.
     54  */
     55 
     56 #include <sys/param.h>
     57 
     58 #define JOBS 1
     59 #ifndef BSD
     60 #define BSD 1
     61 #endif
     62 
     63 #ifndef DO_SHAREDVFORK
     64 #if __NetBSD_Version__ >= 104000000
     65 #define DO_SHAREDVFORK
     66 #endif
     67 #endif
     68 
     69 typedef void *pointer;
     70 #ifndef NULL
     71 #define NULL (void *)0
     72 #endif
     73 #define STATIC	/* empty */
     74 #define MKINIT	/* empty */
     75 
     76 #include <sys/cdefs.h>
     77 
     78 extern char nullstr[1];		/* null string */
     79 
     80 
     81 #ifdef DEBUG
     82 #define TRACE(param)	trace param
     83 #define TRACEV(param)	tracev param
     84 #else
     85 #define TRACE(param)
     86 #define TRACEV(param)
     87 #endif
     88