Minix: src/commands/ash/exec.h Source File

00001 /*-
00002  * Copyright (c) 1991, 1993
00003  *      The Regents of the University of California.  All rights reserved.
00004  *
00005  * This code is derived from software contributed to Berkeley by
00006  * Kenneth Almquist.
00007  *
00008  * Redistribution and use in source and binary forms, with or without
00009  * modification, are permitted provided that the following conditions
00010  * are met:
00011  * 1. Redistributions of source code must retain the above copyright
00012  *    notice, this list of conditions and the following disclaimer.
00013  * 2. Redistributions in binary form must reproduce the above copyright
00014  *    notice, this list of conditions and the following disclaimer in the
00015  *    documentation and/or other materials provided with the distribution.
00016  * 4. Neither the name of the University nor the names of its contributors
00017  *    may be used to endorse or promote products derived from this software
00018  *    without specific prior written permission.
00019  *
00020  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
00021  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00022  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00023  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
00024  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00025  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00026  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00027  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00028  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00029  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00030  * SUCH DAMAGE.
00031  *
00032  *      @(#)exec.h      8.3 (Berkeley) 6/8/95
00033  * $FreeBSD: src/bin/sh/exec.h,v 1.12 2004/04/06 20:06:51 markm Exp $
00034  */
00035 
00036 /* values of cmdtype */
00037 #define CMDUNKNOWN -1           /* no entry in table for command */
00038 #define CMDNORMAL 0             /* command is an executable program */
00039 #define CMDBUILTIN 1            /* command is a shell builtin */
00040 #define CMDFUNCTION 2           /* command is a shell function */
00041 
00042 
00043 struct cmdentry {
00044         int cmdtype;
00045         union param {
00046                 int index;
00047                 union node *func;
00048         } u;
00049 };
00050 
00051 
00052 extern char *pathopt;           /* set by padvance */
00053 extern int exerrno;             /* last exec error */
00054 
00055 void shellexec(char **, char **, char *, int);
00056 char *padvance(char **, char *);
00057 int hashcmd(int, char **);
00058 void find_command(char *, struct cmdentry *, int, char *);
00059 int find_builtin(char *);
00060 void hashcd(void);
00061 void changepath(const char *);
00062 void deletefuncs(void);
00063 void defun(char *, union node *);
00064 int unsetfunc(char *);
00065 int typecmd(int, char **);
00066 void clearcmdentry(int);
00067 
00068 /*
00069  * $PchId: exec.h,v 1.5 2006/04/10 14:47:34 philip Exp $
00070  */