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/*-
* Copyright (c) 1988, 1989, 1990, 1993
* The Regents of the University of California. All rights reserved.
* Copyright (c) 1988, 1989 by Adam de Boor
* Copyright (c) 1989 by Berkeley Softworks
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Adam de Boor.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 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.
*
* $FreeBSD$
*/
#ifndef shell_h_6002e3b8
#define shell_h_6002e3b8
#include <sys/queue.h>
#include "str.h"
#include "util.h"
/**
* Shell Specifications:
*
* Some special stuff goes on if a shell doesn't have error control. In such
* a case, errCheck becomes a printf template for echoing the command,
* should echoing be on and ignErr becomes another printf template for
* executing the command while ignoring the return status. If either of these
* strings is empty when hasErrCtl is FALSE, the command will be executed
* anyway as is and if it causes an error, so be it.
*/
struct Shell {
TAILQ_ENTRY(Shell) link; /* link all shell descriptions */
/*
* the name of the shell. For Bourne and C shells, this is used
* only to find the shell description when used as the single
* source of a .SHELL target.
*/
char *name;
char *path; /* full path to the shell */
/* True if both echoOff and echoOn defined */
Boolean hasEchoCtl;
char *echoOff; /* command to turn off echo */
char *echoOn; /* command to turn it back on */
/*
* What the shell prints, and its length, when given the
* echo-off command. This line will not be printed when
* received from the shell. This is usually the command which
* was executed to turn off echoing
*/
char *noPrint;
/* set if can control error checking for individual commands */
Boolean hasErrCtl;
/* string to turn error checking on */
char *errCheck;
/* string to turn off error checking */
char *ignErr;
char *echo; /* command line flag: echo commands */
char *exit; /* command line flag: exit on error */
ArgArray builtins; /* ordered list of shell builtins */
char *meta; /* shell meta characters */
Boolean unsetenv; /* unsetenv("ENV") before exec */
};
TAILQ_HEAD(Shells, Shell);
extern struct Shell *commandShell;
void Shell_Init(void);
Boolean Shell_Parse(const char []);
#endif /* shell_h_6002e3b8 */
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