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: head/bin/sh/exec.h 238468 2012-07-15 10:19:43Z jilles $ 38 */ 39 40 /* values of cmdtype */ 41 #define CMDUNKNOWN -1 /* no entry in table for command */ 42 #define CMDNORMAL 0 /* command is an executable program */ 43 #define CMDBUILTIN 1 /* command is a shell builtin */ 44 #define CMDFUNCTION 2 /* command is a shell function */ 45 46 /* values for typecmd_impl's third parameter */ 47 enum { 48 TYPECMD_SMALLV, /* command -v */ 49 TYPECMD_BIGV, /* command -V */ 50 TYPECMD_TYPE /* type */ 51 }; 52 53 union node; 54 struct cmdentry { 55 int cmdtype; 56 union param { 57 int index; 58 struct funcdef *func; 59 } u; 60 int special; 61 }; 62 63 64 /* action to find_command() */ 65 #define DO_ERR 0x01 /* prints errors */ 66 #define DO_NOFUNC 0x02 /* don't return shell functions, for command */ 67 68 extern const char *pathopt; /* set by padvance */ 69 extern int exerrno; /* last exec error */ 70 71 void shellexec(char **, char **, const char *, int) __dead2; 72 char *padvance(const char **, const char *); 73 void find_command(const char *, struct cmdentry *, int, const char *); 74 int find_builtin(const char *, int *); 75 void hashcd(void); 76 void changepath(const char *); 77 void defun(const char *, union node *); 78 int unsetfunc(const char *); 79 int isfunc(const char *); 80 int typecmd_impl(int, char **, int, const char *); 81 void clearcmdentry(void); 82