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Re: problem with HELO and TLS

 

 

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ph10 at cus

Apr 26, 2002, 7:46 AM

Post #1 of 1 (653 views)
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Re: problem with HELO and TLS

On 20 Apr 2002, Alexey Promokhov wrote:

> helo_data=[${readfile{/var/run/local-ip}{}}]
>
> File /var/run/local-ip contains my current dynamic IP address.
>
> This works well, until Exim delivering mail with TLS.


Below is a patch for 4.04 that fixes this bug.


--
Philip Hazel University of Cambridge Computing Service,
ph10 [at] cus Cambridge, England. Phone: +44 1223 334714.



*** exim-4.04/src/transports/smtp.c Thu Apr 18 09:08:35 2002
--- transports/smtp.c Fri Apr 26 15:21:48 2002
***************
*** 696,701 ****
--- 696,702 ----
smtp_inblock inblock;
smtp_outblock outblock;
int max_rcpt = tblock->max_addresses;
+ uschar *helo_data;
uschar *message = NULL;
uschar new_message_id[MESSAGE_ID_LENGTH + 1];
uschar *p;
***************
*** 723,745 ****
outblock.ptr = outbuffer;
outblock.cmd_count = 0;

/* Make a connection to the host if this isn't a continued delivery, and handle
the initial interaction and HELO/EHLO/LHLO. */

if (continue_hostname == NULL)
{
- uschar *helo_data = expand_string(ob->helo_data);
-
- if (helo_data == NULL)
- {
- uschar *message = string_sprintf("failed to expand helo_data: %s",
- expand_string_message);
- set_errno(addrlist, 0, message, DEFER);
- return ERROR;
- }
-
- /* Connect ... */
-
inblock.sock = outblock.sock =
smtp_connect(host, host_af, port, interface, ob->connect_timeout,
ob->keepalive);
--- 724,745 ----
outblock.ptr = outbuffer;
outblock.cmd_count = 0;

+ /* Expand the greeting message */
+
+ helo_data = expand_string(ob->helo_data);
+ if (helo_data == NULL)
+ {
+ uschar *message = string_sprintf("failed to expand helo_data: %s",
+ expand_string_message);
+ set_errno(addrlist, 0, message, DEFER);
+ return ERROR;
+ }
+
/* Make a connection to the host if this isn't a continued delivery, and handle
the initial interaction and HELO/EHLO/LHLO. */

if (continue_hostname == NULL)
{
inblock.sock = outblock.sock =
smtp_connect(host, host_af, port, interface, ob->connect_timeout,
ob->keepalive);
***************
*** 792,798 ****
ob->command_timeout))
{
if (errno != 0 || buffer[0] == 0 || lmtp) goto RESPONSE_FAILED;
! if (!smtp_write_command(&outblock, FALSE, "HELO %s\r\n", primary_hostname))
goto SEND_FAILED;
if (!smtp_read_response(&inblock, buffer, sizeof(buffer), '2',
ob->command_timeout)) goto RESPONSE_FAILED;
--- 792,798 ----
ob->command_timeout))
{
if (errno != 0 || buffer[0] == 0 || lmtp) goto RESPONSE_FAILED;
! if (!smtp_write_command(&outblock, FALSE, "HELO %s\r\n", helo_data))
goto SEND_FAILED;
if (!smtp_read_response(&inblock, buffer, sizeof(buffer), '2',
ob->command_timeout)) goto RESPONSE_FAILED;
***************
*** 882,888 ****

if (tls_active >= 0)
{
! if (!smtp_write_command(&outblock, FALSE, "EHLO %s\r\n", primary_hostname))
goto SEND_FAILED;
if (!smtp_read_response(&inblock, buffer, sizeof(buffer), '2',
ob->command_timeout))
--- 882,888 ----

if (tls_active >= 0)
{
! if (!smtp_write_command(&outblock, FALSE, "EHLO %s\r\n", helo_data))
goto SEND_FAILED;
if (!smtp_read_response(&inblock, buffer, sizeof(buffer), '2',
ob->command_timeout))

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