Use a void * for http_Read()'s buffer

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@488 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/cache.h

@@ -271,7 +271,7 @@ int http_GetHdrField(struct http *hp, const char *hdr, const char *field, char *
 int http_GetStatus(struct http *hp);
 int http_HdrIs(struct http *hp, const char *hdr, const char *val);
 int http_GetTail(struct http *hp, unsigned len, char **b, char **e);
-int http_Read(struct http *hp, int fd, char *b, unsigned len);
+int http_Read(struct http *hp, int fd, void *b, unsigned len);
 void http_RecvHead(struct http *hp, int fd, struct event_base *eb, http_callback_f *func, void *arg);
 int http_DissectRequest(struct http *sp, int fd);
 int http_DissectResponse(struct http *sp, int fd);

bin/varnishd/cache_http.c

@@ -123,10 +123,11 @@ http_GetTail(struct http *hp, unsigned len, char **b, char **e)
 /* Read from fd, but soak up any tail first */
 
 int
-http_Read(struct http *hp, int fd, char *b, unsigned len)
+http_Read(struct http *hp, int fd, void *p, unsigned len)
 {
 	int i;
 	unsigned u;
+	char *b = p;
 
 	u = 0;
 	if (hp->t < hp->v) {