Add IF command and new variable functions to gpg-connect-agent.

doc/ChangeLog

@@ -2,6 +2,10 @@
 
 	* tools.texi (Listing options): Document new types.
 
+2008-02-26  Werner Koch  <wk@g10code.com>
+
+	* gpg.texi (GPG Configuration Options): Mention rfc4398.
+
 2008-02-05  David Shaw  <dshaw@jabberwocky.com>
 
 	* gpg.texi (GPG Esoteric Options): Tweak mention of Tempest font

doc/debugging.texi

@@ -16,7 +16,8 @@ solve the problem at hand.
 
 
 @menu
-* Debugging Tools::       Description of some useful tools
+* Debugging Tools::       Description of some useful tools.
+* Debugging Hints::       Various hints on debugging.
 * Common Problems::       Commonly seen problems.
 * Architecture Details::  How the whole thing works internally.
 @end menu
@@ -84,8 +85,26 @@ should not occur but sometimes things go wrong), run it using
 @samp{kbxutil --find-dups ~/.gnupg/pubring.kbx}
 
 
+@node Debugging Hints
+@section Various hints on debugging.
+
+@itemize @bullet
+
+@item How to find the IP address of a keyserver
+
+If a round robin URL of is used for a keyserver
+(e.g. subkeys.gnupg.org); it is not easy to see what server is actually
+used.  Using the keyserver debug option as in
+
+@smallexample
+ gpg --keyserver-options debug=1 -v --refresh-key 1E42B367
+@end smallexample
+
+is thus often helpful.  Note that the actual output depends on the
+backend and may change from release to release.
 
 
+@end itemize
 
 
 @node Common Problems

doc/gpg.texi

@@ -1311,8 +1311,7 @@ arguments, in the order they are to be tried:
 @table @asis
 
 @item cert
-locate a key using DNS CERT, as specified in 2538bis (currently in
-draft): http://www.josefsson.org/rfc2538bis/
+locate a key using DNS CERT, as specified in rfc4398.
 
 @item pka
 locate a key using DNS PKA.

doc/tools.texi

@@ -1215,14 +1215,29 @@ Escape the @var{args} using percent style ecaping.  Tabs, formfeeds,
 linefeeds, carriage returns and colons are escaped. @code{percent+} also
 maps spaces to plus signs.
 
+@item errcode @var{arg}
+@itemx errsource @var{arg}
+@itemx errstring @var{arg}
+Assume @var{arg} is an integer and evaluate it using @code{strtol}.  Return
+the gpg-error error code, error source or a formatted string with the
+error code and error source.
+
+
 @item +
 @itemx -
-@item *
-@item /
-@item %
+@itemx *
+@itemx /
+@itemx %
 Evaluate all arguments as long integers using @code{strtol} and apply
 this operator.  A division by zero yields an empty string.
 
+@item !
+@itemx |
+@itemx &
+Evaluate all arguments as long integers using @code{strtol} and apply
+the logical oeprators NOT, OR or AND.  The NOT operator works on the
+last argument only.
+
 
 @end table