$av_failed variable set when av_scanner deferred

Patch from John Horne.
Fixes bug 1078

3 files changed, 16 insertions, 0 deletions

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index 1092cab54..aa4be5332 100644
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -10610,6 +10610,15 @@ is empty and &$authentication_failed$& is set to &"1"&). Failure includes any
 negative response to an AUTH command, including (for example) an attempt to use
 an undefined mechanism.
 
+.new
+.vitem &$av_failed$&
+.cindex "content scanning" "AV scanner failure"
+This variable is available when Exim is compiled with the content-scanning
+extension. It is set to &"0"& by default, but will be set to &"1"& if any
+problem occurs with the virus scanner (specified by &%av_scanner%&) during
+the ACL malware condition.
+.wen
+
 .vitem &$body_linecount$&
 .cindex "message body" "line count"
 .cindex "body of message" "line count"
diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog
index bb182c9dd..6181dd2d2 100644
--- a/doc/doc-txt/ChangeLog
+++ b/doc/doc-txt/ChangeLog
@@ -97,6 +97,10 @@ PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
 
 PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
 
+PP/05 Variable $av_failed, true if the AV scanner deferred.
+      Patch from John Horne.
+      Bugzilla 1078.
+
 
 Exim version 4.76
 -----------------
diff --git a/doc/doc-txt/NewStuff b/doc/doc-txt/NewStuff
index eb1e1397e..bf247e67e 100644
--- a/doc/doc-txt/NewStuff
+++ b/doc/doc-txt/NewStuff
@@ -15,6 +15,9 @@ Version 4.77
  2. The SMTP transport's protocol option may now be set to "smtps", to
     use SSL-on-connect outbound.
 
+ 3. New variable $av_failed, set true if the AV scanner deferred; ie, when
+    there is a problem talking to the AV scanner, or the AV scanner running.
+
 
 Version 4.76
 ------------