#include <u.h>#include <libc.h>#include "httpd.h"#include "httpsrv.h" int		logall[2]; voidlogit(HConnect *c, char *fmt, ...){	char buf[4096];	va_list arg;	HSPriv *p; 	va_start(arg, fmt);	vseprint(buf, buf+sizeof(buf), fmt, arg);	va_end(arg);	p = nil;	if(c != nil)		p = c->private;	if(p != nil && p->remotesys != nil)		syslog(0, HTTPLOG, "%s %s", p->remotesys, buf);	else		syslog(0, HTTPLOG, "%s", buf);} voidwritelog(HConnect *c, char *fmt, ...){	HSPriv *p;	char buf[HBufSize+500], *bufp, *bufe;	ulong now, today;	int logfd;	va_list arg; 	bufe = buf + sizeof(buf);	now = time(nil);	today = now / (24*60*60);	logfd = logall[today & 1];	if(c == nil || logfd <= 0)		return;	p = c->private;	if(c->hstop == c->header || c->hstop[-1] != '\n')		*c->hstop = '\n';	*c->hstop = '\0';	bufp = seprint(buf, bufe, "==========\n");	bufp = seprint(bufp, bufe, "LogTime:  %D\n", now);	bufp = seprint(bufp, bufe, "ConnTime: %D\n", c->reqtime);	bufp = seprint(bufp, bufe, "RemoteIP: %s\n", p->remotesys);	bufp = seprint(bufp, bufe, "Port: %s\n", p->remoteserv);	va_start(arg, fmt);	bufp = vseprint(bufp, bufe, fmt, arg);	va_end(arg);	if(c->req.uri != nil && c->req.uri[0] != 0)		bufp = seprint(bufp, bufe, "FinalURI: %s\n", c->req.uri);	bufp = seprint(bufp, bufe, "----------\n%s\n", (char*)c->header);	write(logfd, buf, bufp-buf);   /* append-only file */}