Decode the HTTP protocol version into a convenient struct http field.

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@3290 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/cache.h

@@ -137,6 +137,7 @@ struct http {
 	unsigned char		conds;		/* If-* headers present */
 	enum httpwhence 	logtag;
 	int			status;
+	double			protover;
 
 	txt 			hd[HTTP_HDR_MAX];
 	unsigned char		hdf[HTTP_HDR_MAX];

bin/varnishd/cache_http.c

@@ -496,6 +496,13 @@ http_DissectRequest(struct sess *sp)
 
 	i = http_splitline(sp->wrk, sp->fd, hp, htc,
 	    HTTP_HDR_REQ, HTTP_HDR_URL, HTTP_HDR_PROTO);
+	hp->protover = 0.9;
+	if (!strcmp(hp->hd[HTTP_HDR_PROTO].b, "HTTP/1.0"))
+		hp->protover = 1.0;
+	else if (!strcmp(hp->hd[HTTP_HDR_PROTO].b, "HTTP/1.1"))
+		hp->protover = 1.1;
+	else
+		hp->protover = 0.9;
 
 	if (i != 0)
 		WSPR(sp, SLT_HttpGarbage, htc->rxbuf);