Arrange to call dns_init() for host_find_byname() as well as for

[users/jgh/exim.git] / doc / doc-txt / ChangeLog

diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog
index 111d2ae5cc02362d48557fdefcc7b1513e6b012c..599c7877a57a31ff1454af0e75633687e7246010 100644 (file)
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-$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.402 2006/10/03 10:25:55 ph10 Exp $
+$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.404 2006/10/09 14:36:25 ph10 Exp $

 
 Change log file for Exim from version 4.21
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 Change log file for Exim from version 4.21
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@@ -91,6 +91,24 @@ PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
       with its parentage. It now outputs "B failed to verify", showing B's
       parentage before showing the successful verification of C.
 
       with its parentage. It now outputs "B failed to verify", showing B's
       parentage before showing the successful verification of C.
 

+PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
+      look up a TXT record in a specific list after matching in a combined
+      list.
+
+PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
+      RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
+      they consult the DNS. I had assumed they would set it the way they
+      wanted; and indeed my experiments on Linux seem to show that in some
+      cases they do (I could influence IPv6 lookups but not IPv4 lookups).
+      To be on the safe side, however, I have now made the interface to
+      host_find_byname() similar to host_find_bydns(), with an argument
+      containing the DNS resolver options. The host_find_byname() function now
+      sets these options at its start, just as host_find_bydns() does. The smtp
+      transport options dns_qualify_single and dns_search_parents are passed to
+      host_find_byname() when gethostbyname=TRUE in this transport. Other uses
+      of host_find_byname() use the default settings of RES_DEFNAMES
+      (qualify_single) but not RES_DNSRCH (search_parents).
+

 
 Exim version 4.63
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 Exim version 4.63
 -----------------