X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/d6f6e0dc45e55bf5edd4c16e2b360ab2031d5468..08955dd349a1bfbbf1923bd87c04220d1174fb8f:/doc/doc-txt/ChangeLog

diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog
index e7d4a3f55..6d25eec70 100644
--- a/doc/doc-txt/ChangeLog
+++ b/doc/doc-txt/ChangeLog
@@ -1,4 +1,4 @@
-$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.403 2006/10/03 15:11:22 ph10 Exp $
+$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.405 2006/10/10 11:15:12 ph10 Exp $
 
 Change log file for Exim from version 4.21
 -------------------------------------------
@@ -95,6 +95,28 @@ 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).
+
+PH/17 Applied (a modified version of) Nico Erfurth's patch to make
+      spool_read_header() do less string testing, by means of a preliminary
+      switch on the second character of optional "-foo" lines. (This is
+      overdue, caused by the large number of possibilities that now exist.
+      Originally there were few.) While I was there, I also converted the
+      str(n)cmp tests so they don't re-test the leading "-" and the first
+      character, in the hope this might squeeze out yet more improvement.
+
 
 Exim version 4.63
 -----------------