#include <u.h>#include <libc.h>#include "httpd.h"#include "httpsrv.h" voidusage(void){	fprint(2, "usage: httpd [-b inbuf] [-d domain] [-r remoteip] [-w webroot] [-N netdir] [-R reqline] [-L logfd0 logfd1] method version uri [search]\n");	exits("usage");} char	*netdir;char	*webroot;char	*HTTPLOG = "httpd/log"; static	HConnect	connect;static	HSPriv		priv; HConnect*init(int argc, char **argv){	char *s, *vs; 	hinit(&connect.hin, 0, Hread);	hinit(&connect.hout, 1, Hwrite);	hmydomain = nil;	connect.replog = writelog;	connect.private = &priv;	priv.remotesys = nil;	priv.remoteserv = nil;	fmtinstall('D', hdatefmt);	fmtinstall('H', httpfmt);	fmtinstall('U', hurlfmt);	netdir = "/net";	ARGBEGIN{	case 'b':		s = ARGF();		if(s != nil)			hload(&connect.hin, s);		break;	case 'd':		hmydomain = ARGF();		break;	case 'r':		priv.remotesys = ARGF();		break;	case 'w':		webroot = ARGF();		break;	case 'N':		netdir = ARGF();		break;	case 'L':		s = ARGF();		if(s == nil)			usage();		logall[0] = strtol(s, nil, 10);		s = ARGF();		if(s == nil)			usage();		logall[1] = strtol(s, nil, 10);		break;	case 'R':		s = ARGF();		if(s == nil)			usage();		snprint((char*)connect.header, sizeof(connect.header), "%s", s);		break;	default:		usage();	}ARGEND 	if(priv.remotesys == nil)		priv.remotesys = "unknown";	if(priv.remoteserv == nil)		priv.remoteserv = "unknown";	if(hmydomain == nil)		hmydomain = "unknown";	if(webroot == nil)		webroot = "/usr/web"; 	/*	 * open all files we might need before castrating namespace	 */	time(nil);	syslog(0, HTTPLOG, nil); 	if(argc != 4 && argc != 3)		usage(); 	connect.req.meth = argv[0]; 	vs = argv[1];	connect.req.vermaj = 0;	connect.req.vermin = 9;	if(strncmp(vs, "HTTP/", 5) == 0){		vs += 5;		connect.req.vermaj = strtoul(vs, &vs, 10);		if(*vs == '.')			vs++;		connect.req.vermin = strtoul(vs, &vs, 10);	} 	connect.req.uri = argv[2];	connect.req.search = argv[3];	connect.head.closeit = 1;	connect.hpos = (uchar*)strchr((char*)connect.header, '\0');	connect.hstop = connect.hpos;	connect.reqtime = time(nil);	/* not quite right, but close enough */	return &connect;}