1 files changed, 11 insertions, 6 deletions
diff --git a/lib/Net/IMAP/InterIMAP.pm b/lib/Net/IMAP/InterIMAP.pm
index 1dd54b7..19895c4 100644
--- a/lib/Net/IMAP/InterIMAP.pm
+++ b/lib/Net/IMAP/InterIMAP.pm
@@ -26,7 +26,8 @@ use Errno qw/EEXIST EINTR/;
 use Net::SSLeay 1.73 ();
 use List::Util qw/all first/;
 use POSIX ':signal_h';
-use Socket qw/SOCK_STREAM SOCK_RAW IPPROTO_TCP AF_UNIX AF_INET AF_INET6 PF_UNSPEC SOCK_CLOEXEC :addrinfo/;
+use Socket qw/SOCK_STREAM SOCK_RAW SOCK_CLOEXEC IPPROTO_TCP SHUT_RDWR
+              AF_UNIX AF_INET AF_INET6 PF_UNSPEC :addrinfo/;
 
 use Exporter 'import';
 BEGIN {
@@ -506,7 +507,7 @@ sub stats($) {
 }
 
 
-# Log out when the Net::IMAP::InterIMAP object is destroyed.
+# Destroy a Net::IMAP::InterIMAP object.
 sub DESTROY($) {
     my $self = shift;
     $self->{_STATE} = 'LOGOUT';
@@ -514,8 +515,12 @@ sub DESTROY($) {
     Net::SSLeay::free($self->{_SSL}) if defined $self->{_SSL};
     Net::SSLeay::CTX_free($self->{_SSL_CTX}) if defined $self->{_SSL_CTX};
 
-    shutdown($self->{S}, 2) if $self->{type} ne 'tunnel' and defined $self->{S};
-    $self->{S}->close() if defined $self->{S} and $self->{S}->opened();
+    if (defined (my $s = $self->{S})) {
+        # for type=tunnel we assume the child won't linger around once
+        # we close its standard input and output.
+        shutdown($s, SHUT_RDWR);
+        $s->close() if $s->opened();
+    }
     $self->stats() unless $self->{quiet};
 }
 
@@ -606,7 +611,7 @@ sub incapable($@) {
 
 
 # $self->search($criterion)
-#   Issue an UID SEARCH command with the given $criterion.  For the "normal"
+#   Issue a UID SEARCH command with the given $criterion.  For the "normal"
 #   UID SEARCH command from RFC 3501, return the list of matching UIDs;
 #   for the extended UID SEARCH command from RFC 4731 (ensuring ESEARCH
 #   capability is the caller's responsibility), return an optional "UID"
@@ -917,7 +922,7 @@ sub append($$@) {
 
 
 # $self->fetch($set, $flags, [$callback])
-#   Issue an UID FETCH command with the given UID $set, $flags, and
+#   Issue a UID FETCH command with the given UID $set, $flags, and
 #   optional $callback.
 sub fetch($$$;&) {
     my ($self, $set, $flags, $callback) = @_;