#! /usr/bin/env perl
-# Copyright 2007-2016 The OpenSSL Project Authors. All Rights Reserved.
+# Copyright 2007-2020 The OpenSSL Project Authors. All Rights Reserved.
#
-# Licensed under the OpenSSL license (the "License"). You may not use
+# Licensed under the Apache License 2.0 (the "License"). You may not use
# this file except in compliance with the License. You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html
# ====================================================================
-# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
+# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
# project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further
# details see http://www.openssl.org/~appro/cryptogams/.
#
-# Hardware SPARC T4 support by David S. Miller <davem@davemloft.net>.
+# Hardware SPARC T4 support by David S. Miller
# ====================================================================
# SHA256 performance improvement over compiler generated code varies
# over 2x than 32-bit code. X[16] resides on stack, but access to it
# is scheduled for L2 latency and staged through 32 least significant
# bits of %l0-%l7. The latter is done to achieve 32-/64-bit ABI
-# duality. Nevetheless it's ~40% faster than SHA256, which is pretty
+# duality. Nevertheless it's ~40% faster than SHA256, which is pretty
# good [optimal coefficient is 50%].
#
# SHA512 on UltraSPARC T1.
# saturates at 11.5x single-process result on 8-core processor, or
# ~11/16GBps per 2.85GHz socket.
-$output=pop;
-open STDOUT,">$output";
+# $output is the last argument if it looks like a file (it has an extension)
+$output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m|\.\w+$| ? pop : undef;
+
+$output and open STDOUT,">$output";
if ($output =~ /512/) {
$label="512";
print $_,"\n";
}
-close STDOUT;
+close STDOUT or die "error closing STDOUT: $!";