From 0b16a534b2036c16637ecc5e97f9dcd3e265049a Mon Sep 17 00:00:00 2001
From: "David A. Madore" <david+git@madore.org>
Date: Mon, 22 Feb 2010 16:29:02 +0100
Subject: Allow running the client with no key (generating no HMAC), for PING
 and DATE.

---
 emergencyc.pl | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/emergencyc.pl b/emergencyc.pl
index 5d59be1..c460dc1 100755
--- a/emergencyc.pl
+++ b/emergencyc.pl
@@ -45,7 +45,7 @@ if ( defined($opts{K}) ) {
     chomp $key;
     close $key_file;
 }
-die "No key specified (use -K or -k option)" unless defined($key);
+#die "No key specified (use -K or -k option)" unless defined($key);
 
 my $host = $opts{h} // "localhost";
 my $port = $opts{p} // DEFAULT_PORT;
@@ -64,10 +64,10 @@ sub curtime {
 		   $year+1900,$mon+1,$mday,$hour,$min,$sec);
 }
 
-my $command = $ARGV[0] // "PING";
+my $command = scalar(@ARGV)?join(" ",@ARGV):"PING";
 my $timestamp = $opts{t} // curtime;
 my $validate = "$command|$timestamp";
-my $mac_check = hmac_sha256_hex($validate, $key);
+my $mac_check = defined($key)?hmac_sha256_hex($validate, $key):"";
 send $socket, "$command|$timestamp|$mac_check", 0, $haddr;
 
 my $buf;
-- 
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