projects / apple / shell_cmds.git / blame
| Commit | Line | Data |
|---|---|---|
| 71aad674 A |
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 | * 4. Neither the name of the University nor the names of its contributors | |
| 17 | * may be used to endorse or promote products derived from this software | |
| 18 | * without specific prior written permission. | |
| 19 | * | |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
| 21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 24 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 25 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 26 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 28 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 29 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 30 | * SUCH DAMAGE. | |
| 31 | * | |
| 32 | * @(#)exec.h 8.3 (Berkeley) 6/8/95 | |
| 33 | * $FreeBSD$ | |
| 34 | */ | |
| 35 | ||
| 36 | /* values of cmdtype */ | |
| 37 | #define CMDUNKNOWN -1 /* no entry in table for command */ | |
| 38 | #define CMDNORMAL 0 /* command is an executable program */ | |
| 39 | #define CMDBUILTIN 1 /* command is a shell builtin */ | |
| 40 | #define CMDFUNCTION 2 /* command is a shell function */ | |
| 41 | ||
| 42 | /* values for typecmd_impl's third parameter */ | |
| 43 | enum { | |
| 44 | TYPECMD_SMALLV, /* command -v */ | |
| 45 | TYPECMD_BIGV, /* command -V */ | |
| 46 | TYPECMD_TYPE /* type */ | |
| 47 | }; | |
| 48 | ||
| 49 | union node; | |
| 50 | struct cmdentry { | |
| 51 | int cmdtype; | |
| 52 | union param { | |
| 53 | int index; | |
| 54 | struct funcdef *func; | |
| 55 | } u; | |
| 56 | int special; | |
| 57 | }; | |
| 58 | ||
| 59 | ||
| 60 | /* action to find_command() */ | |
| 61 | #define DO_ERR 0x01 /* prints errors */ | |
| 62 | #define DO_NOFUNC 0x02 /* don't return shell functions, for command */ | |
| 63 | ||
| 64 | extern const char *pathopt; /* set by padvance */ | |
| 65 | extern int exerrno; /* last exec error */ | |
| 66 | ||
| 67 | void shellexec(char **, char **, const char *, int) __dead2; | |
| 68 | char *padvance(const char **, const char *); | |
| 69 | void find_command(const char *, struct cmdentry *, int, const char *); | |
| 70 | int find_builtin(const char *, int *); | |
| 71 | void hashcd(void); | |
| 72 | void changepath(const char *); | |
| 73 | void defun(const char *, union node *); | |
| 74 | int unsetfunc(const char *); | |
| 75 | int isfunc(const char *); | |
| 76 | int typecmd_impl(int, char **, int, const char *); | |
| 77 | void clearcmdentry(void); |