/*-
 * Copyright (c) 1991 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Kenneth Almquist.
 *
 * %sccs.include.redist.c%
 *
 *	@(#)exec.h	5.2 (Berkeley) 06/23/92
 */

/* 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 */


struct cmdentry {
	int cmdtype;
	union param {
		int index;
		union node *func;
	} u;
};


extern char *pathopt;		/* set by padvance */

#ifdef __STDC__
void shellexec(char **, char **, char *, int);
char *padvance(char **, char *);
void find_command(char *, struct cmdentry *, int);
int find_builtin(char *);
void hashcd(void);
void changepath(char *);
void defun(char *, union node *);
int unsetfunc(char *);
#else
void shellexec();
char *padvance();
void find_command();
int find_builtin();
void hashcd();
void changepath();
void defun();
int unsetfunc();
#endif