2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
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9 * modification, are permitted provided that the following conditions
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12 * notice, this list of conditions and the following disclaimer.
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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
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36 * @(#)eval.h 8.2 (Berkeley) 5/4/95
37 * $FreeBSD: src/bin/sh/eval.h,v 1.7.2.2 2002/08/27 01:36:28 tjr Exp $
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 */
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 */
52 int evalcmd(int, char **);
53 void evalstring(char *);
54 union node; /* BLETCH for ansi C */
55 void evaltree(union node *, int);
56 void evalbackcmd(union node *, struct backcmd *);
57 int bltincmd(int, char **);
58 int breakcmd(int, char **);
59 int returncmd(int, char **);
60 int falsecmd(int, char **);
61 int truecmd(int, char **);
62 int execcmd(int, char **);
63 int commandcmd(int, char **);
65 /* in_function returns nonzero if we are currently evaluating a function */
66 #define in_function() funcnest
70 /* reasons for skipping commands (see comment on breakcmd routine) */