1994-05-26 06:18:55 +00:00
|
|
|
/*-
|
|
|
|
|
* Copyright (c) 1991, 1993
|
|
|
|
|
* The Regents of the University of California. All rights reserved.
|
|
|
|
|
*
|
|
|
|
|
* This code is derived from software contributed to Berkeley by
|
|
|
|
|
* Kenneth Almquist.
|
|
|
|
|
*
|
|
|
|
|
* Redistribution and use in source and binary forms, with or without
|
|
|
|
|
* modification, are permitted provided that the following conditions
|
|
|
|
|
* are met:
|
|
|
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
|
|
|
* notice, this list of conditions and the following disclaimer.
|
|
|
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
|
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
|
|
|
* documentation and/or other materials provided with the distribution.
|
|
|
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
|
|
|
* may be used to endorse or promote products derived from this software
|
|
|
|
|
* without specific prior written permission.
|
|
|
|
|
*
|
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
|
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
|
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
|
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
|
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
|
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
|
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
|
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
|
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
|
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
|
|
|
* SUCH DAMAGE.
|
|
|
|
|
*
|
1996-09-01 10:22:36 +00:00
|
|
|
* @(#)eval.h 8.2 (Berkeley) 5/4/95
|
1999-08-27 23:15:48 +00:00
|
|
|
* $FreeBSD$
|
1994-05-26 06:18:55 +00:00
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
extern char *commandname; /* currently executing command */
|
|
|
|
|
extern int exitstatus; /* exit status of last command */
|
2009-12-27 18:04:05 +00:00
|
|
|
extern int oexitstatus; /* saved exit status */
|
1994-05-26 06:18:55 +00:00
|
|
|
extern struct strlist *cmdenviron; /* environment for builtin command */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
struct backcmd { /* result of evalbackcmd */
|
|
|
|
|
int fd; /* file descriptor to read from */
|
|
|
|
|
char *buf; /* buffer */
|
|
|
|
|
int nleft; /* number of chars in buffer */
|
|
|
|
|
struct job *jp; /* job structure for command */
|
|
|
|
|
};
|
|
|
|
|
|
2009-06-13 21:17:45 +00:00
|
|
|
/* flags in argument to evaltree/evalstring */
|
|
|
|
|
#define EV_EXIT 01 /* exit after evaluating tree */
|
|
|
|
|
#define EV_TESTED 02 /* exit status is checked; ignore -e flag */
|
|
|
|
|
#define EV_BACKCMD 04 /* command executing within back quotes */
|
|
|
|
|
|
2009-05-31 12:36:14 +00:00
|
|
|
void evalstring(char *, int);
|
1994-05-26 06:18:55 +00:00
|
|
|
union node; /* BLETCH for ansi C */
|
2002-02-02 06:50:57 +00:00
|
|
|
void evaltree(union node *, int);
|
|
|
|
|
void evalbackcmd(union node *, struct backcmd *);
|
1994-05-26 06:18:55 +00:00
|
|
|
|
|
|
|
|
/* in_function returns nonzero if we are currently evaluating a function */
|
|
|
|
|
#define in_function() funcnest
|
|
|
|
|
extern int funcnest;
|
1996-12-14 06:20:03 +00:00
|
|
|
extern int evalskip;
|
2012-01-16 11:07:46 +00:00
|
|
|
extern int skipcount;
|
1996-12-14 06:20:03 +00:00
|
|
|
|
|
|
|
|
/* reasons for skipping commands (see comment on breakcmd routine) */
|
|
|
|
|
#define SKIPBREAK 1
|
|
|
|
|
#define SKIPCONT 2
|
|
|
|
|
#define SKIPFUNC 3
|
|
|
|
|
#define SKIPFILE 4
|
