exec.h revision 50471
11556Srgrimes/*- 21556Srgrimes * Copyright (c) 1991, 1993 31556Srgrimes * The Regents of the University of California. All rights reserved. 41556Srgrimes * 51556Srgrimes * This code is derived from software contributed to Berkeley by 61556Srgrimes * Kenneth Almquist. 71556Srgrimes * 81556Srgrimes * Redistribution and use in source and binary forms, with or without 91556Srgrimes * modification, are permitted provided that the following conditions 101556Srgrimes * are met: 111556Srgrimes * 1. Redistributions of source code must retain the above copyright 121556Srgrimes * notice, this list of conditions and the following disclaimer. 131556Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 141556Srgrimes * notice, this list of conditions and the following disclaimer in the 151556Srgrimes * documentation and/or other materials provided with the distribution. 161556Srgrimes * 3. All advertising materials mentioning features or use of this software 171556Srgrimes * must display the following acknowledgement: 181556Srgrimes * This product includes software developed by the University of 191556Srgrimes * California, Berkeley and its contributors. 201556Srgrimes * 4. Neither the name of the University nor the names of its contributors 211556Srgrimes * may be used to endorse or promote products derived from this software 221556Srgrimes * without specific prior written permission. 231556Srgrimes * 241556Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 251556Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 261556Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 271556Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 281556Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 291556Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 301556Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 311556Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 321556Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 331556Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 341556Srgrimes * SUCH DAMAGE. 351556Srgrimes * 3617987Speter * @(#)exec.h 8.3 (Berkeley) 6/8/95 3750471Speter * $FreeBSD: head/bin/sh/exec.h 50471 1999-08-27 23:15:48Z peter $ 381556Srgrimes */ 391556Srgrimes 401556Srgrimes/* values of cmdtype */ 411556Srgrimes#define CMDUNKNOWN -1 /* no entry in table for command */ 421556Srgrimes#define CMDNORMAL 0 /* command is an executable program */ 431556Srgrimes#define CMDBUILTIN 1 /* command is a shell builtin */ 441556Srgrimes#define CMDFUNCTION 2 /* command is a shell function */ 451556Srgrimes 461556Srgrimes 471556Srgrimesstruct cmdentry { 481556Srgrimes int cmdtype; 491556Srgrimes union param { 501556Srgrimes int index; 511556Srgrimes union node *func; 521556Srgrimes } u; 531556Srgrimes}; 541556Srgrimes 551556Srgrimes 561556Srgrimesextern char *pathopt; /* set by padvance */ 5720425Ssteveextern int exerrno; /* last exec error */ 581556Srgrimes 5917987Spetervoid shellexec __P((char **, char **, char *, int)); 6017987Speterchar *padvance __P((char **, char *)); 6117987Speterint hashcmd __P((int, char **)); 6217987Spetervoid find_command __P((char *, struct cmdentry *, int, char *)); 6317987Speterint find_builtin __P((char *)); 6417987Spetervoid hashcd __P((void)); 6520425Sstevevoid changepath __P((const char *)); 6617987Spetervoid deletefuncs __P((void)); 6717987Spetervoid getcmdentry __P((char *, struct cmdentry *)); 6817987Spetervoid addcmdentry __P((char *, struct cmdentry *)); 6917987Spetervoid defun __P((char *, union node *)); 7017987Speterint unsetfunc __P((char *)); 7125223Ssteveint typecmd __P((int, char **)); 72