14b88c807SRodney W. Grimes /*- 24b88c807SRodney W. Grimes * Copyright (c) 1991, 1993 34b88c807SRodney W. Grimes * The Regents of the University of California. All rights reserved. 44b88c807SRodney W. Grimes * 54b88c807SRodney W. Grimes * This code is derived from software contributed to Berkeley by 64b88c807SRodney W. Grimes * Kenneth Almquist. 74b88c807SRodney W. Grimes * 84b88c807SRodney W. Grimes * Redistribution and use in source and binary forms, with or without 94b88c807SRodney W. Grimes * modification, are permitted provided that the following conditions 104b88c807SRodney W. Grimes * are met: 114b88c807SRodney W. Grimes * 1. Redistributions of source code must retain the above copyright 124b88c807SRodney W. Grimes * notice, this list of conditions and the following disclaimer. 134b88c807SRodney W. Grimes * 2. Redistributions in binary form must reproduce the above copyright 144b88c807SRodney W. Grimes * notice, this list of conditions and the following disclaimer in the 154b88c807SRodney W. Grimes * documentation and/or other materials provided with the distribution. 16*fbbd9655SWarner Losh * 3. Neither the name of the University nor the names of its contributors 174b88c807SRodney W. Grimes * may be used to endorse or promote products derived from this software 184b88c807SRodney W. Grimes * without specific prior written permission. 194b88c807SRodney W. Grimes * 204b88c807SRodney W. Grimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 214b88c807SRodney W. Grimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 224b88c807SRodney W. Grimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 234b88c807SRodney W. Grimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 244b88c807SRodney W. Grimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 254b88c807SRodney W. Grimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 264b88c807SRodney W. Grimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 274b88c807SRodney W. Grimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 284b88c807SRodney W. Grimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 294b88c807SRodney W. Grimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 304b88c807SRodney W. Grimes * SUCH DAMAGE. 314b88c807SRodney W. Grimes * 32aa9caaf6SPeter Wemm * @(#)exec.h 8.3 (Berkeley) 6/8/95 332a456239SPeter Wemm * $FreeBSD$ 344b88c807SRodney W. Grimes */ 354b88c807SRodney W. Grimes 364b88c807SRodney W. Grimes /* values of cmdtype */ 374b88c807SRodney W. Grimes #define CMDUNKNOWN -1 /* no entry in table for command */ 384b88c807SRodney W. Grimes #define CMDNORMAL 0 /* command is an executable program */ 394b88c807SRodney W. Grimes #define CMDBUILTIN 1 /* command is a shell builtin */ 404b88c807SRodney W. Grimes #define CMDFUNCTION 2 /* command is a shell function */ 414b88c807SRodney W. Grimes 42b2f153feSStefan Farfeleder /* values for typecmd_impl's third parameter */ 43b2f153feSStefan Farfeleder enum { 44b2f153feSStefan Farfeleder TYPECMD_SMALLV, /* command -v */ 45b2f153feSStefan Farfeleder TYPECMD_BIGV, /* command -V */ 46b2f153feSStefan Farfeleder TYPECMD_TYPE /* type */ 47b2f153feSStefan Farfeleder }; 484b88c807SRodney W. Grimes 49eb33e843SJilles Tjoelker union node; 504b88c807SRodney W. Grimes struct cmdentry { 514b88c807SRodney W. Grimes int cmdtype; 524b88c807SRodney W. Grimes union param { 534b88c807SRodney W. Grimes int index; 54eb33e843SJilles Tjoelker struct funcdef *func; 554b88c807SRodney W. Grimes } u; 5685170a4aSStefan Farfeleder int special; 574b88c807SRodney W. Grimes }; 584b88c807SRodney W. Grimes 594b88c807SRodney W. Grimes 60c848bc18SJilles Tjoelker /* action to find_command() */ 61c848bc18SJilles Tjoelker #define DO_ERR 0x01 /* prints errors */ 62c848bc18SJilles Tjoelker #define DO_NOFUNC 0x02 /* don't return shell functions, for command */ 63c848bc18SJilles Tjoelker 642cac6e36SJilles Tjoelker extern const char *pathopt; /* set by padvance */ 65ab0a2172SSteve Price extern int exerrno; /* last exec error */ 664b88c807SRodney W. Grimes 6795139d9dSJilles Tjoelker void shellexec(char **, char **, const char *, int) __dead2; 682cac6e36SJilles Tjoelker char *padvance(const char **, const char *); 692cac6e36SJilles Tjoelker void find_command(const char *, struct cmdentry *, int, const char *); 702cac6e36SJilles Tjoelker int find_builtin(const char *, int *); 715134c3f7SWarner Losh void hashcd(void); 725134c3f7SWarner Losh void changepath(const char *); 732cac6e36SJilles Tjoelker void defun(const char *, union node *); 742cac6e36SJilles Tjoelker int unsetfunc(const char *); 7584fbdd8cSJilles Tjoelker int isfunc(const char *); 7606a8a57fSJilles Tjoelker int typecmd_impl(int, char **, int, const char *); 77c059d822SJilles Tjoelker void clearcmdentry(void); 78