Panic-die if a system filter or router generates more then 32767 child

[exim.git] / src / src / routers / iplookup.c

diff --git a/src/src/routers/iplookup.c b/src/src/routers/iplookup.c
index f4120d91c6ef606f79abe9c70ac0fbb0202b54bd..a0afa9d0ab175e1d7d7f95cf51efac8ea4ee5814 100644 (file)
--- a/src/src/routers/iplookup.c
+++ b/src/src/routers/iplookup.c
@@ -1,10 +1,10 @@
-/* $Cambridge: exim/src/src/routers/iplookup.c,v 1.3 2005/06/27 14:29:44 ph10 Exp $ */
+/* $Cambridge: exim/src/src/routers/iplookup.c,v 1.9 2007/01/02 11:25:00 ph10 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2005 */
+/* Copyright (c) University of Cambridge 1995 - 2006 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 
@@ -137,7 +137,7 @@ iplookup_router_entry(
   router_instance *rblock,        /* data for this instantiation */
   address_item *addr,             /* address we are working on */
   struct passwd *pw,              /* passwd entry after check_local_user */
-  BOOL verify,                    /* TRUE when verifying */
+  int verify,                     /* v_none/v_recipient/v_sender/v_expn */
   address_item **addr_local,      /* add it to this if it's local */
   address_item **addr_remote,     /* add it to this if it's remote */
   address_item **addr_new,        /* put new addresses on here */
@@ -202,11 +202,11 @@ while ((hostname = string_nextinlist(&listptr, &sep, host_buffer,
   host->mx = MX_NONE;
   host->next = NULL;
 
-  if (string_is_ip_address(host->name, NULL))
+  if (string_is_ip_address(host->name, NULL) != 0)
     host->address = host->name;
   else
     {
-    int rc = host_find_byname(host, NULL, NULL, TRUE);
+    int rc = host_find_byname(host, NULL, HOST_FIND_QUALIFY_SINGLE, NULL, TRUE);
     if (rc == HOST_FIND_FAILED || rc == HOST_FIND_AGAIN) continue;
     }
 
@@ -240,6 +240,7 @@ while ((hostname = string_nextinlist(&listptr, &sep, host_buffer,
 
     if (ip_connect(query_socket, host_af, h->address,ob->port, ob->timeout) < 0)
       {
+      close(query_socket);
       DEBUG(D_route)
         debug_printf("connection to %s failed: %s\n", h->address,
           strerror(errno));
@@ -377,6 +378,9 @@ new_addr->parent = addr;
 copyflag(new_addr, addr, af_propagate);
 new_addr->p = addr->p;
 
+if (addr->child_count == SHRT_MAX)
+  log_write(0, LOG_MAIN|LOG_PANIC_DIE, "%s router generated more than %d "
+    "child addresses for <%s>", rblock->name, SHRT_MAX, addr->address);
 addr->child_count++;
 new_addr->next = *addr_new;
 *addr_new = new_addr;