Magnus' patch for $sending_ip_address and $sending_port.

[exim.git] / src / src / smtp_out.c

diff --git a/src/src/smtp_out.c b/src/src/smtp_out.c
index 696cfff5da6e0e2e6e10d4e8afb7b98fafcf6136..d4aed373538cab8ed073546e57eaf5a81e8c1fee 100644 (file)
--- a/src/src/smtp_out.c
+++ b/src/src/smtp_out.c
@@ -1,10 +1,10 @@
-/* $Cambridge: exim/src/src/smtp_out.c,v 1.5 2005/06/27 14:29:43 ph10 Exp $ */
+/* $Cambridge: exim/src/src/smtp_out.c,v 1.9 2007/01/30 15:10:59 ph10 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2005 */
+/* Copyright (c) University of Cambridge 1995 - 2007 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 /* A number of functions for driving outgoing SMTP calls. */
@@ -155,12 +155,13 @@ non-IPv6 systems, to enable the code to be less messy. However, on such systems
 host->address will always be an IPv4 address.
 
 The port field in the host item is used if it is set (usually router from SRV
-records). In other cases, the default passed as an argument is used.
+records or elsewhere). In other cases, the default passed as an argument is
+used, and the host item is updated with its value.
 
 Arguments:
   host        host item containing name and address (and sometimes port)
   host_af     AF_INET or AF_INET6
-  port        default, remote port to connect to, in host byte order for those
+  port        default remote port to connect to, in host byte order, for those
                 hosts whose port setting is PORT_NONE
   interface   outgoing interface address or NULL
   timeout     timeout value or 0
@@ -184,6 +185,7 @@ if (host->port != PORT_NONE)
       host->port);
   port = host->port;
   }
+else host->port = port;    /* Set the port actually used */
 
 HDEBUG(D_transport|D_acl|D_v)
   {
@@ -239,7 +241,18 @@ if (save_errno != 0)
 
 else
   {
+  union sockaddr_46 interface_sock;
+  EXIM_SOCKLEN_T size = sizeof(interface_sock);
   HDEBUG(D_transport|D_acl|D_v) debug_printf("connected\n");
+  if (getsockname(sock, (struct sockaddr *)(&interface_sock), &size) == 0)
+    sending_ip_address = host_ntoa(-1, &interface_sock, NULL, &sending_port);
+  else
+    {
+    log_write(0, LOG_MAIN | ((errno == ECONNRESET)? 0 : LOG_PANIC),
+      "getsockname() failed: %s", strerror(errno));
+    close(sock);
+    return -1;
+    }
   if (keepalive) ip_keepalive(sock, host->address, TRUE);
   return sock;
   }