1 /* $NetBSD: exec.h,v 1.20 2003/01/22 20:36:04 dsl Exp $ */ 2 3 /*- 4 * Copyright (c) 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Kenneth Almquist. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)exec.h 8.3 (Berkeley) 6/8/95 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 CMDFUNCTION 1 /* command is a shell function */ 45 #define CMDBUILTIN 2 /* command is a shell builtin */ 46 #define CMDSPLBLTIN 3 /* command is a special shell builtin */ 47 48 49 struct cmdentry { 50 int cmdtype; 51 union param { 52 int index; 53 int (*bltin)(int, char**); 54 union node *func; 55 } u; 56 }; 57 58 59 /* action to find_command() */ 60 #define DO_ERR 0x01 /* prints errors */ 61 #define DO_ABS 0x02 /* checks absolute paths */ 62 #define DO_NOFUNC 0x04 /* don't return shell functions, for command */ 63 #define DO_ALTPATH 0x08 /* using alternate path */ 64 #define DO_ALTBLTIN 0x20 /* %builtin in alt. path */ 65 66 extern const char *pathopt; /* set by padvance */ 67 68 void shellexec(char **, char **, const char *, int, int) 69 __attribute__((__noreturn__)); 70 char *padvance(const char **, const char *); 71 int hashcmd(int, char **); 72 void find_command(char *, struct cmdentry *, int, const char *); 73 int (*find_builtin(char *))(int, char **); 74 int (*find_splbltin(char *))(int, char **); 75 void hashcd(void); 76 void changepath(const char *); 77 void deletefuncs(void); 78 void getcmdentry(char *, struct cmdentry *); 79 void addcmdentry(char *, struct cmdentry *); 80 void defun(char *, union node *); 81 int unsetfunc(char *); 82 int typecmd(int, char **); 83 void hash_special_builtins(void); 84