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/* $NetBSD: exec.h,v 1.21 2003/08/07 09:05:31 agc Exp $ */
/*-
* 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.
* 3. 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.
*
* @(#)exec.h 8.3 (Berkeley) 6/8/95
*/
#ifndef ___exec_h
#define ___exec_h
/* values of cmdtype */
#define CMDUNKNOWN -1 /* no entry in table for command */
#define CMDNORMAL 0 /* command is an executable program */
#define CMDFUNCTION 1 /* command is a shell function */
#define CMDBUILTIN 2 /* command is a shell builtin */
#define CMDSPLBLTIN 3 /* command is a special shell builtin */
union param {
struct
{
int index;
int suffix; /* PC suffix index */
} n;
int (*bltin)(struct shinstance*, int, char**);
union node *func;
};
struct cmdentry {
int cmdtype;
union param u;
};
/* action to find_command() */
#define DO_ERR 0x01 /* prints errors */
#define DO_ABS 0x02 /* checks absolute paths */
#define DO_NOFUNC 0x04 /* don't return shell functions, for command */
#define DO_ALTPATH 0x08 /* using alternate path */
#define DO_ALTBLTIN 0x20 /* %builtin in alt. path */
/*extern const char *pathopt;*/ /* set by padvance */
#if !defined(__GNUC__) && !defined(__attribute__)
# define __attribute__(a)
#endif
#ifndef SH_FORKED_MODE
void subshellinitexec(shinstance *, shinstance *);
#endif
SH_NORETURN_1 void shellexec(struct shinstance *, char **, char **, const char *, int, int) SH_NORETURN_2;
char *padvance(struct shinstance *, const char **, const char *);
int hashcmd(struct shinstance *, int, char **);
void find_command(struct shinstance *, char *, struct cmdentry *, int, const char *);
int (*find_builtin(struct shinstance *, char *))(struct shinstance *, int, char **);
int (*find_splbltin(struct shinstance *, char *))(struct shinstance *, int, char **);
void hashcd(struct shinstance *);
void changepath(struct shinstance *, const char *);
void deletefuncs(struct shinstance *);
void getcmdentry(struct shinstance *, char *, struct cmdentry *);
void addcmdentry(struct shinstance *, char *, struct cmdentry *);
void defun(struct shinstance *, char *, union node *);
int unsetfunc(struct shinstance *, char *);
int typecmd(struct shinstance *, int, char **);
void hash_special_builtins(struct shinstance *);
#endif
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