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exec.h revision 1.9 
      1 /*	$NetBSD: exec.h,v 1.9 1995/06/09 01:53:53 christos 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  *	@(#)exec.h	8.3 (Berkeley) 6/8/95
     39  */
     40 
     41 /* values of cmdtype */
     42 #define CMDUNKNOWN -1		/* no entry in table for command */
     43 #define CMDNORMAL 0		/* command is an executable program */
     44 #define CMDBUILTIN 1		/* command is a shell builtin */
     45 #define CMDFUNCTION 2		/* command is a shell function */
     46 
     47 
     48 struct cmdentry {
     49 	int cmdtype;
     50 	union param {
     51 		int index;
     52 		union node *func;
     53 	} u;
     54 };
     55 
     56 
     57 extern char *pathopt;		/* set by padvance */
     58 
     59 void shellexec __P((char **, char **, char *, int));
     60 char *padvance __P((char **, char *));
     61 int hashcmd __P((int, char **));
     62 void find_command __P((char *, struct cmdentry *, int, char *));
     63 int find_builtin __P((char *));
     64 void hashcd __P((void));
     65 void changepath __P((char *));
     66 void deletefuncs __P((void));
     67 void getcmdentry __P((char *, struct cmdentry *));
     68 void addcmdentry __P((char *, struct cmdentry *));
     69 void defun __P((char *, union node *));
     70 int unsetfunc __P((char *));
     71