sh: Fix duplicate prototypes for builtins.
[dragonfly.git] / bin / sh / exec.h
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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
c3e3bc7a 37 * $FreeBSD: src/bin/sh/exec.h,v 1.23 2011/06/13 21:03:27 jilles Exp $
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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
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46/* values for typecmd_impl's third parameter */
47enum {
48 TYPECMD_SMALLV, /* command -v */
49 TYPECMD_BIGV, /* command -V */
50 TYPECMD_TYPE /* type */
51};
984263bc 52
99512ac4 53union node;
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54struct cmdentry {
55 int cmdtype;
56 union param {
57 int index;
99512ac4 58 struct funcdef *func;
984263bc 59 } u;
0d5aaed6 60 int special;
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61};
62
63
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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
68extern const char *pathopt; /* set by padvance */
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69extern int exerrno; /* last exec error */
70
99512ac4 71void shellexec(char **, char **, const char *, int) __dead2;
492efe05 72char *padvance(const char **, const char *);
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73void find_command(const char *, struct cmdentry *, int, const char *);
74int find_builtin(const char *, int *);
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75void hashcd(void);
76void changepath(const char *);
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77void addcmdentry(const char *, struct cmdentry *);
78void defun(const char *, union node *);
79int unsetfunc(const char *);
80int typecmd_impl(int, char **, int, const char *);
99512ac4 81void clearcmdentry(void);