*** orig_buff.c	Tue Aug 21 17:45:34 2001
--- spidercache_buff.c	Tue Aug 21 17:45:35 2001
***************
*** 356,361 ****
--- 356,365 ----
  {
      int rv;
  
+     if (fb->filter_callback != NULL) {
+         fb->filter_callback(fb, buf, nbyte);
+     }
+    
  #if defined(WIN32) || defined(NETWARE)
      if (fb->flags & B_SOCKET) {
  	rv = sendwithtimeout(fb->fd, buf, nbyte, 0);
***************
*** 438,443 ****
--- 442,450 ----
  		       (size_t) SF_UNBOUND, 1, SF_WRITE);
  #endif
  
+     fb->callback_data = NULL;
+     fb->filter_callback = NULL;
+ 
      return fb;
  }
  
***************
*** 1077,1082 ****
--- 1084,1095 ----
  static int writev_it_all(BUFF *fb, struct iovec *vec, int nvec)
  {
      int i, rv;
+     
+     if (fb->filter_callback != NULL) {
+         for (i = 0; i < nvec; i++) {
+             fb->filter_callback(fb, vec[i].iov_base, vec[i].iov_len);
+         }
+     }
  
      /* while it's nice an easy to build the vector and crud, it's painful
       * to deal with a partial writev()