projects / dragonfly.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | 40 | extern const char *commandname; /* currently executing command */ |
| 984263bc | 41 | extern int exitstatus; /* exit status of last command */ |
| 99512ac4 | 42 | extern int oexitstatus; /* saved exit status */ |
| 984263bc MD |
43 | extern struct strlist *cmdenviron; /* environment for builtin command */ |
| 44 | ||
| 45 | ||
| 46 | struct 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 | 58 | void evalstring(char *, int); |
| 984263bc MD |
59 | union node; /* BLETCH for ansi C */ |
| 60 | void evaltree(union node *, int); | |
| 61 | void 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 | |
| 65 | extern int funcnest; | |
| 66 | extern 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 |