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 * @(#)exec.h 8.3 (Berkeley) 6/8/95 37 * $FreeBSD: src/bin/sh/exec.h,v 1.9.2.1 2002/07/19 04:38:51 tjr Exp $ 38 * $DragonFly: src/bin/sh/exec.h,v 1.4 2004/03/19 18:39:41 cpressey Exp $ 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 const char *pathopt; /* set by padvance */ 58 extern int exerrno; /* last exec error */ 59 60 void shellexec(char **, char **, const char *, int); 61 char *padvance(const char **, const char *); 62 int hashcmd(int, char **); 63 void find_command(char *, struct cmdentry *, int, const char *); 64 int find_builtin(char *); 65 void hashcd(void); 66 void changepath(const char *); 67 void deletefuncs(void); 68 void addcmdentry(char *, struct cmdentry *); 69 void defun(char *, union node *); 70 int unsetfunc(char *); 71 int typecmd(int, char **); 72 void clearcmdentry(int); 73