patch 7eb7e2ff46a284866aa04fa8679ec731279c63c7
Author: Enrique D. Bosch <presidev@AT@gmail.com>
Date:   Sun Sep  2 21:20:08 CEST 2018
  * Implement correctly LOGOUT command according to RFC 3501, add logout_timeout config option
diff -rN -u old-idlebiff/.idlebiffrc new-idlebiff/.idlebiffrc
--- old-idlebiff/.idlebiffrc	2024-04-29 10:34:14.282215495 +0200
+++ new-idlebiff/.idlebiffrc	2024-04-29 10:34:14.286215503 +0200
@@ -13,6 +13,7 @@
 initial_noop=0
 keepalive=1500
 timeout=20
+timeout_logout=2
 png_up=up.png
 png_down=down.png
 png_chk=check.png
diff -rN -u old-idlebiff/idlebiff new-idlebiff/idlebiff
--- old-idlebiff/idlebiff	2024-04-29 10:34:14.282215495 +0200
+++ new-idlebiff/idlebiff	2024-04-29 10:34:14.286215503 +0200
@@ -30,6 +30,7 @@
 proc or args { foreach x $args { if { $x } { return 1 } }; return 0 }
 proc and args { foreach x $args { if { $x } continue  { return 0 } }; return 1 }
 
+proc setappend { var args } { upvar 1 $var v; set v [ join $args {} ] }
 
 proc check_conf_and_set_default { opt default } \
 {
@@ -40,7 +41,7 @@
 
 namespace eval static \
 {
-  variable tag 1
+  variable ntag 1
   variable ccsp 0
   variable pmsgs 0
   variable search_resp 0
@@ -73,6 +74,7 @@
   variable img_down
   variable img_chk
   variable new_messages 0
+  variable tag
 }
 
 proc define_pixmaps {} \
@@ -279,7 +281,9 @@
   if { $conf(imap_trace) } \
   { if {[ regexp {.*LOGIN.*} $com ]} { puts "C: [string range $com 0 10]" } else { puts "C: $com" } }
 
-  if {[ catch { puts $con $com } ]} \
+  set r [ catch { puts $con $com } ]
+  if {[ eq $com LOGOUT ]} return
+  if { $r } \
   {
     recon $con
     return
@@ -289,17 +293,19 @@
 
 proc imap_command_tagged { con com { prefix A } } \
 {
-  variable ::static::tag
+  variable ::static::ntag
+  variable ::shared::tag
 
-  if {[ == $tag 10000 ]} { set tag 1 }
-  append tcom $prefix [ format %04d $tag ] { } $com
+  if {[ == $ntag 10000 ]} { set ntag 1 }
+  setappend tag $prefix [ format %04d $ntag ]
+  append tcom $tag { } $com
   imap_command $con $tcom
-  incr tag
+  incr ntag
 }
 
-proc ok_tagged linea \
+proc ok_tagged { linea { tag {A\d+} } } \
 {
-  append rexp {^} A {\d+ ok.*$}
+  append rexp {^} $tag { ok.*$}
   return [ regexp -lineanchor -nocase $rexp $linea ]
 }
 
@@ -328,14 +334,25 @@
 
 proc logout con \
 {
+  variable ::shared::ka
+  variable ::shared::idle
+  variable ::shared::conf
+
+  after cancel $ka
+  set idle 0
+  exit_idle $con
+  fileevent $con readable { parse_logout $con }
+  after ${conf(timeout_logout)}000 \
+  {
+    close $con
+    exit 0
+  }
   imap_command_tagged $con LOGOUT
-  close $con
 }
 
 proc cleanup con \
 {
   logout $con
-  exit 0
 }
 
 proc force_down {} \
@@ -525,6 +542,20 @@
   if {[ no_tagged $linea ]} { emit_error search }
 }
 
+proc parse_logout con \
+{
+  variable ::shared::conf
+  variable ::shared::tag
+
+  if {[ catch { gets $con linea } ]} return
+  if { $conf(imap_trace) } { puts "S: $linea" }
+  if {[ ok_tagged $linea $tag ]} \
+  {
+    close $con
+    exit 0
+  }
+}
+
 proc read_line con \
 {
   variable ::shared::conf