X-Git-Url: http://lab.mitty.jp/git/?a=blobdiff_plain;f=misc%2Fdnsbench.pl;h=65bdbdbb2e1980fd003cdeeb1ce383420db1d6fd;hb=68d6d5b003efbd06a48bd9933929cbe463738ee2;hp=d5d20082f820eacd9efafede8d4f84bc4abcfddc;hpb=dff3e87bde3c27a391f9906cda4ac694d0fc653f;p=lab.git

diff --git a/misc/dnsbench.pl b/misc/dnsbench.pl
index d5d2008..65bdbdb 100644
--- a/misc/dnsbench.pl
+++ b/misc/dnsbench.pl
@@ -5,7 +5,7 @@ use warnings;
 
 use Net::DNS;
 
-my $hostlist = shift @ARGV || die "usage: $0 list_of_hosts [nameserver]";
+my $hostlist = shift @ARGV or die "usage: $0 list_of_hosts [nameserver]";
 if (! -r $hostlist) {
     die "$0: cannot read $hostlist";
 }
@@ -24,8 +24,8 @@ else {
 }
 
 
-open LIST, "<$hostlist";
-while (my $host = <LIST>) {
+open my $list, '<', $hostlist or die "$0: filename: $!";
+while (my $host = <$list>) {
     chomp $host;
     my $query = $res->send($host);
     if ($query) {