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typedef struct Exec Exec;
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typedef struct Rule Rule;
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typedef struct Ruleset Ruleset;
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/*
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 * Object
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 */
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enum
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{
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	OArg,
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	OAttr,
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	OData,
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	ODst,
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	OPlumb,
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	OSrc,
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	OType,
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	OWdir,
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};
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/*
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 * Verbs
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 */
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enum
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{
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	VAdd,	/* apply to OAttr only */
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	VClient,
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	VDelete,	/* apply to OAttr only */
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	VIs,
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	VIsdir,
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	VIsfile,
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	VMatches,
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	VSet,
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	VStart,
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	VTo,
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};
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struct Rule
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{
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	int	obj;
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	int	verb;
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	char	*arg;		/* unparsed string of all arguments */
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	char	*qarg;	/* quote-processed arg string */
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	Reprog	*regex;
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};
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struct Ruleset
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{
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	int	npat;
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	int	nact;
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	Rule	**pat;
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	Rule	**act;
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	char	*port;
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};
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struct Exec
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{
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	Plumbmsg	*msg;
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	char			*match[10];
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	int			p0;		/* begin and end of match */
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	int			p1;
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	int			clearclick;	/* click was expanded; remove attribute */
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	int			setdata;	/* data should be set to $0 */
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	int			holdforclient;	/* exec'ing client; keep message until port is opened */
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	/* values of $variables */
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	char			*file;
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	char 			*dir;
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};
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void		parseerror(char*, ...);
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void		error(char*, ...);
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void*	emalloc(long);
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void*	erealloc(void*, long);
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char*	estrdup(char*);
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Ruleset**	readrules(char*, int);
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void		startfsys(void);
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Exec*	matchruleset(Plumbmsg*, Ruleset*);
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void		freeexec(Exec*);
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char*	startup(Ruleset*, Exec*);
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char*	printrules(void);
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void		addport(char*);
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char*	writerules(char*, int);
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char*	expand(Exec*, char*, char**);
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void		makeports(Ruleset*[]);
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void		printinputstack(void);
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int		popinput(void);
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Ruleset	**rules;
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char		*user;
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char		*home;
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jmp_buf	parsejmp;
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char		*lasterror;
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char		**ports;
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int		nports;