sh: Fix duplicate prototypes for builtins.
[dragonfly.git] / bin / sh / eval.h
CommitLineData
984263bc
MD
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 * @(#)eval.h 8.2 (Berkeley) 5/4/95
c3e3bc7a 37 * $FreeBSD: src/bin/sh/eval.h,v 1.15 2011/06/13 21:03:27 jilles Exp $
984263bc
MD
38 */
39
492efe05 40extern const char *commandname; /* currently executing command */
984263bc 41extern int exitstatus; /* exit status of last command */
99512ac4 42extern int oexitstatus; /* saved exit status */
984263bc
MD
43extern struct strlist *cmdenviron; /* environment for builtin command */
44
45
46struct backcmd { /* result of evalbackcmd */
47 int fd; /* file descriptor to read from */
48 char *buf; /* buffer */
49 int nleft; /* number of chars in buffer */
50 struct job *jp; /* job structure for command */
51};
52
99512ac4
PA
53/* flags in argument to evaltree/evalstring */
54#define EV_EXIT 01 /* exit after evaluating tree */
55#define EV_TESTED 02 /* exit status is checked; ignore -e flag */
56#define EV_BACKCMD 04 /* command executing within back quotes */
57
99512ac4 58void evalstring(char *, int);
984263bc
MD
59union node; /* BLETCH for ansi C */
60void evaltree(union node *, int);
61void evalbackcmd(union node *, struct backcmd *);
984263bc
MD
62
63/* in_function returns nonzero if we are currently evaluating a function */
64#define in_function() funcnest
65extern int funcnest;
66extern int evalskip;
67
68/* reasons for skipping commands (see comment on breakcmd routine) */
69#define SKIPBREAK 1
70#define SKIPCONT 2
71#define SKIPFUNC 3
72#define SKIPFILE 4