typedef struct HSPriv	HSPriv; enum{	HSTIMEOUT	= 15 * 60 * 1000, 	/* rewrite replacement field modifiers */	Modsilent	= '@',	/* don't tell the browser about the redirect. */	Modperm		= '=',	/* generate permanent redirection */	Modsubord	= '*',	/* map page & all subordinates to same URL */	Modonly		= '>',	/* match only this page, not subordinates */ 	Redirsilent	= 1<<0,	Redirperm	= 1<<1,	Redirsubord	= 1<<2,	Redironly	= 1<<3,}; struct HSPriv{	char		*remotesys;	char		*remoteserv;}; extern	int		logall[3];extern	char*		HTTPLOG;extern	char*		webroot;extern	char*		netdir; #define 		STRLEN(s)	(sizeof(s)-1) /* emem.c */char			*estrdup(char*);void*			ezalloc(ulong); /* sendfd.c */int			authcheck(HConnect *c);int			checkreq(HConnect *c, HContent *type, HContent *enc, long mtime, char *etag);int			etagmatch(int, HETag*, char*);HRange			*fixrange(HRange *h, long length);int			sendfd(HConnect *c, int fd, Dir *dir, HContent *type, HContent *enc); /* content.c */void			contentinit(void);HContents		dataclass(HConnect *, char*, int);int			updateQid(int, Qid*);HContents		uriclass(HConnect *, char*); /* anonymous.c */void			anonymous(HConnect*); /* hint.c */void			hintprint(HConnect *hc, Hio*, char *, int, int);void			statsinit(void);void			urlcanon(char *url);void			urlinit(void); /* init.c */HConnect*		init(int, char**); vlong			Bfilelen(void*); /* redirect.c */void			redirectinit(void);char*			redirect(HConnect *hc, char*, uint *);char*			masquerade(char*);char*			authrealm(HConnect *hc, char *path);char			*undecorated(char *repl); /* log.c */void			logit(HConnect*, char*, ...);#pragma	varargck	argpos	logit	2void			writelog(HConnect*, char*, ...);#pragma	varargck	argpos	writelog	2 /* authorize.c */int authorize(HConnect*, char*); char *webroot;