1 files changed, 7 insertions, 7 deletions
diff --git a/emergencyc.pl b/emergencyc.pl
index b8bebb6..296297f 100755
--- a/emergencyc.pl
+++ b/emergencyc.pl
@@ -10,8 +10,8 @@
 
 # Options recognized:
 #
-# -K <key> specifies the key to use; or -k <filename> specifies a
-# keyfile (the client will use the first line as key).
+# -K <key> specifies the key to use; or -k <filename> specifies a key
+# file (the client will use the first line as key).
 #
 # -h <hostname> and -p <number> specifies the host and port to connect
 # to.
@@ -39,10 +39,10 @@ my $key;
 if ( defined($opts{K}) ) {
     $key = $opts{K};
 } elsif ( defined($opts{k}) ) {
-    open my $keyfile, "<", $opts{k} or die "Cannot open key file $opts{k}: $!";
-    $key = <$keyfile>;
+    open my $key_file, "<", $opts{k} or die "Cannot open key file $opts{k}: $!";
+    $key = <$key_file>;
     chomp $key;
-    close $keyfile;
+    close $key_file;
 }
 die "No key specified (use -K or -k option)" unless defined($key);
 
@@ -65,8 +65,8 @@ sub curtime {
 my $command = $ARGV[0] // "PING";
 my $timestamp = $opts{t} // curtime;
 my $validate = "$command|$timestamp";
-my $maccheck = hmac_sha256_hex($validate, $key);
-send $socket, "$command|$timestamp|$maccheck", 0, $haddr;
+my $mac_check = hmac_sha256_hex($validate, $key);
+send $socket, "$command|$timestamp|$mac_check", 0, $haddr;
 
 my $buf;
 my $sender;