From 76be3c7c47ace843ab3ebd216252c63411a1222e Mon Sep 17 00:00:00 2001
From: Guilhem Moulin <guilhem@fripost.org>
Date: Sat, 5 Mar 2016 19:49:08 +0100
Subject: Ensure the FD_CLOEXEC bit is 1 on sockets, logger and state files.

---
 lib/Net/IMAP/InterIMAP.pm | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'lib/Net')

diff --git a/lib/Net/IMAP/InterIMAP.pm b/lib/Net/IMAP/InterIMAP.pm
index 2898905..40f4193 100644
--- a/lib/Net/IMAP/InterIMAP.pm
+++ b/lib/Net/IMAP/InterIMAP.pm
@@ -23,6 +23,7 @@ use strict;
 use Compress::Raw::Zlib qw/Z_OK Z_FULL_FLUSH Z_SYNC_FLUSH MAX_WBITS/;
 use Config::Tiny ();
 use Errno 'EINTR';
+use Fcntl qw/F_GETFL F_SETFL FD_CLOEXEC/;
 use Net::SSLeay ();
 use List::Util qw/all first/;
 use POSIX ':signal_h';
@@ -1354,7 +1355,13 @@ sub _tcp_connect($$$) {
 
     foreach my $ai (@res) {
         socket my $s, $ai->{family}, $ai->{socktype}, $ai->{protocol};
-        return $s if defined $s and connect($s, $ai->{addr});
+        # TODO: add a connection timeout
+        # http://devpit.org/wiki/Connect%28%29_with_timeout_%28in_Perl%29
+        if (defined $s and connect($s, $ai->{addr})) {
+            my $flags = fcntl($s, F_GETFL, 0)       or $self->panic("fcntl F_GETFL: $!");
+            fcntl($s, F_SETFL, $flags | FD_CLOEXEC) or $self->panic("fcntl F_SETFL: $!");
+            return $s;
+        }
     }
     $self->fail("Can't connect to $host:$port");
 }
-- 
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