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/*-
* 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.
*
* @(#)exec.h 8.3 (Berkeley) 6/8/95
* $FreeBSD$
*/
/* values of cmdtype */
#define CMDUNKNOWN -1 /* no entry in table for command */
#define CMDNORMAL 0 /* command is an executable program */
#define CMDBUILTIN 1 /* command is a shell builtin */
#define CMDFUNCTION 2 /* command is a shell function */
/* values for typecmd_impl's third parameter */
enum {
TYPECMD_SMALLV, /* command -v */
TYPECMD_BIGV, /* command -V */
TYPECMD_TYPE /* type */
};
union node;
struct cmdentry {
int cmdtype;
union param {
int index;
struct funcdef *func;
} u;
int special;
};
/* action to find_command() */
#define DO_ERR 0x01 /* prints errors */
#define DO_NOFUNC 0x02 /* don't return shell functions, for command */
extern const char *pathopt; /* set by padvance */
extern int exerrno; /* last exec error */
void shellexec(char **, char **, const char *, int) __dead2;
char *padvance(const char **, const char *);
int hashcmd(int, char **);
void find_command(const char *, struct cmdentry *, int, const char *);
int find_builtin(const char *, int *);
void hashcd(void);
void changepath(const char *);
void addcmdentry(const char *, struct cmdentry *);
void defun(const char *, union node *);
int unsetfunc(const char *);
int typecmd_impl(int, char **, int, const char *);
int typecmd(int, char **);
void clearcmdentry(void);
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