/*
 * execute.h: things of global importance to programs executing
 */
#ifndef _EXECUTE_D
#define _EXECUTE_D

#include "glob.h"
#include "kw.h"

#define ST_UMASK 0x00ff	/* user bits in status word */
#define ST_SMASK 0xff00	/* system bits in status word */

#define ST_SFLAG 0x8000			/* all system errors are <0 */
#define ST_INTR  (0x0100|ST_SFLAG)	/* user interrupted */
#define	ST_SERR  (0x0200|ST_SFLAG)	/* system problem */
#define ST_NOT   (0x0400|ST_SFLAG)	/* program not there */

typedef struct iterator {
    char *i_control;		/* control variable in for statement */
    int i_current;		/* the argument we are about to replace */
				/* in for the control variables */
    struct args_t i_arg;	/* arguments in for statement */
} ITERATOR;

#ifdef __STDC__
extern ITERATOR *foreach(CMD*);
extern int       fornext(ITERATOR*);
extern void      forgone(ITERATOR*);
extern int       runcommand(CMD*, int);
#else
extern ITERATOR *foreach();
extern int       fornext();
extern void      forgone();
extern int       runcommand();
#endif

#endif /*_EXECUTE_D*/