From: Chuck Murcko   chuck@telebase.com

This patch disables PHTTP (Keepalive connections) for Apache versions 1.1.x
when accessed by a Mozilla/2 browser, since those browsers have known
keepalive bugs that degrade service.

It will be replaced in version 1.2 by handlers invoked by the BrowserMatch
directive.

*** http_main.c.orig	Mon Aug  5 17:58:47 1996
--- http_main.c	Mon Aug  5 18:03:20 1996
***************
*** 1249,1255 ****
  #if defined(STATUS)
          if (r) increment_counts(child_num,r,1);
  #endif
! 	while (r && current_conn->keepalive) {
  	  bflush(conn_io);
  	  destroy_pool(r->pool);
  	  (void)update_child_status (child_num, SERVER_BUSY_KEEPALIVE, (request_rec*)NULL);
--- 1249,1255 ----
  #if defined(STATUS)
          if (r) increment_counts(child_num,r,1);
  #endif
! 	while (r && !is_agent_mozilla2(r) && current_conn->keepalive) {
  	  bflush(conn_io);
  	  destroy_pool(r->pool);
  	  (void)update_child_status (child_num, SERVER_BUSY_KEEPALIVE, (request_rec*)NULL);
***************
*** 1568,1574 ****
  	r = read_request (conn);
  	if (r) process_request (r); /* else premature EOF (ignore) */
  
!         while (r && conn->keepalive) {
  	  bflush(cio);
  	  destroy_pool(r->pool);
            r = read_request (conn);
--- 1568,1574 ----
  	r = read_request (conn);
  	if (r) process_request (r); /* else premature EOF (ignore) */
  
!         while (r && !is_agent_mozilla2(r) && conn->keepalive) {
  	  bflush(cio);
  	  destroy_pool(r->pool);
            r = read_request (conn);
*** http_protocol.c.orig	Mon Aug  5 17:58:46 1996
--- http_protocol.c	Mon Aug  5 18:02:00 1996
***************
*** 704,710 ****
      
      basic_http_header (r);
  
!     set_keepalive (r);
      
      if (r->content_type)
          bvputs(fd, "Content-type: ", 
--- 704,711 ----
      
      basic_http_header (r);
  
!     if(!is_agent_mozilla2(r))
!         set_keepalive (r);
      
      if (r->content_type)
          bvputs(fd, "Content-type: ", 
***************
*** 733,741 ****
      }
  
      bputs("\015\012",fd);
- 
-     if (c->keepalive)
- 	bflush(r->connection->client);  /* For bugs in Netscape, perhaps */
  
      bsetopt(fd, BO_BYTECT, &zero);
      r->sent_bodyct = 1;		/* Whatever follows is real body stuff... */
--- 734,739 ----
*** httpd.h.orig	Mon Aug  5 17:58:46 1996
--- httpd.h	Mon Aug  5 18:02:00 1996
***************
*** 558,560 ****
--- 558,562 ----
  unsigned long get_virthost_addr (char *hostname, short int *port);
  
  extern time_t restart_time;
+ 
+ int is_agent_mozilla2(request_rec *r);
*** util.c.orig	Mon Aug  5 17:58:46 1996
--- util.c	Mon Aug  5 18:01:59 1996
***************
*** 66,71 ****
--- 66,83 ----
  #include <time.h>
  #endif
  
+ int
+ is_agent_mozilla2(request_rec *r)
+ {
+     char *agent;
+ 
+     agent = table_get(r->headers_in, "User-Agent");
+     if(agent != NULL)
+         return(strncmp(agent, "Mozilla/2", 9) == 0 ? 1 : 0);
+     else
+ 	return 0;
+ }
+ 
  #ifdef NOTDEF
  extern char** environ;