exec.h revision 196483
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 * 4. Neither the name of the University nor the names of its contributors 171556Srgrimes * may be used to endorse or promote products derived from this software 181556Srgrimes * without specific prior written permission. 191556Srgrimes * 201556Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 211556Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 221556Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 231556Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 241556Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 251556Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 261556Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 271556Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 281556Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 291556Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 301556Srgrimes * SUCH DAMAGE. 311556Srgrimes * 3217987Speter * @(#)exec.h 8.3 (Berkeley) 6/8/95 3350471Speter * $FreeBSD: head/bin/sh/exec.h 196483 2009-08-23 21:09:46Z jilles $ 341556Srgrimes */ 351556Srgrimes 361556Srgrimes/* values of cmdtype */ 371556Srgrimes#define CMDUNKNOWN -1 /* no entry in table for command */ 381556Srgrimes#define CMDNORMAL 0 /* command is an executable program */ 391556Srgrimes#define CMDBUILTIN 1 /* command is a shell builtin */ 401556Srgrimes#define CMDFUNCTION 2 /* command is a shell function */ 411556Srgrimes 42151810Sstefanf/* values for typecmd_impl's third parameter */ 43151810Sstefanfenum { 44151810Sstefanf TYPECMD_SMALLV, /* command -v */ 45151810Sstefanf TYPECMD_BIGV, /* command -V */ 46151810Sstefanf TYPECMD_TYPE /* type */ 47151810Sstefanf}; 481556Srgrimes 49196483Sjillesunion node; 501556Srgrimesstruct cmdentry { 511556Srgrimes int cmdtype; 521556Srgrimes union param { 531556Srgrimes int index; 54196483Sjilles struct funcdef *func; 551556Srgrimes } u; 56157601Sstefanf int special; 571556Srgrimes}; 581556Srgrimes 591556Srgrimes 601556Srgrimesextern char *pathopt; /* set by padvance */ 6120425Ssteveextern int exerrno; /* last exec error */ 621556Srgrimes 6390111Simpvoid shellexec(char **, char **, char *, int); 6490111Simpchar *padvance(char **, char *); 6590111Simpint hashcmd(int, char **); 6690111Simpvoid find_command(char *, struct cmdentry *, int, char *); 67157601Sstefanfint find_builtin(char *, int *); 6890111Simpvoid hashcd(void); 6990111Simpvoid changepath(const char *); 7090111Simpvoid deletefuncs(void); 7190111Simpvoid addcmdentry(char *, struct cmdentry *); 7290111Simpvoid defun(char *, union node *); 7390111Simpint unsetfunc(char *); 74151810Sstefanfint typecmd_impl(int, char **, int); 7590111Simpint typecmd(int, char **); 7690111Simpvoid clearcmdentry(int); 77