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15637ed4 RG |
1 | /*- |
2 | * Copyright (c) 1991 The Regents of the University of California. | |
3 | * 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 | * | |
68de1ca3 AM |
36 | * from: @(#)eval.h 5.2 (Berkeley) 4/12/91 |
37 | * eval.h,v 1.4 1993/08/01 18:58:31 mycroft Exp | |
15637ed4 RG |
38 | */ |
39 | ||
40 | extern char *commandname; /* currently executing command */ | |
41 | extern int exitstatus; /* exit status of last command */ | |
42 | extern struct strlist *cmdenviron; /* environment for builtin command */ | |
43 | ||
44 | ||
45 | struct backcmd { /* result of evalbackcmd */ | |
46 | int fd; /* file descriptor to read from */ | |
47 | char *buf; /* buffer */ | |
48 | int nleft; /* number of chars in buffer */ | |
49 | struct job *jp; /* job structure for command */ | |
50 | }; | |
51 | ||
52 | ||
53 | #ifdef __STDC__ | |
54 | void evalstring(char *); | |
55 | union node; /* BLETCH for ansi C */ | |
56 | void evaltree(union node *, int); | |
57 | void evalbackcmd(union node *, struct backcmd *); | |
58 | #else | |
59 | void evalstring(); | |
60 | void evaltree(); | |
61 | void evalbackcmd(); | |
62 | #endif | |
63 | ||
64 | /* in_function returns nonzero if we are currently evaluating a function */ | |
65 | #define in_function() funcnest | |
66 | extern int funcnest; |