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 1.14 2009/12/27 18:04:05 jilles Exp $
40 extern const char *commandname; /* currently executing command */
41 extern int exitstatus; /* exit status of last command */
42 extern int oexitstatus; /* saved exit status */
43 extern struct strlist *cmdenviron; /* environment for builtin command */
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 */
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 */
58 int evalcmd(int, char **);
59 void evalstring(char *, int);
60 union node; /* BLETCH for ansi C */
61 void evaltree(union node *, int);
62 void evalbackcmd(union node *, struct backcmd *);
63 int bltincmd(int, char **);
64 int breakcmd(int, char **);
65 int returncmd(int, char **);
66 int falsecmd(int, char **);
67 int truecmd(int, char **);
68 int execcmd(int, char **);
69 int timescmd(int, char **);
70 int commandcmd(int, char **);
72 /* in_function returns nonzero if we are currently evaluating a function */
73 #define in_function() funcnest
77 /* reasons for skipping commands (see comment on breakcmd routine) */