mbedtls/tests/scripts/tcp_client.pl
Bence Szépkúti c7da1fe381 Add Apache-2.0 headers to all scripts
This commit was generated using the following script:

# ========================
#!/bin/sh

# Find scripts
find -path './.git' -prune -o '(' -name '*.gdb' -o -name '*.pl' -o -name '*.py' -o -name '*.sh' ')' -print | xargs sed -i '

# Remove Mbed TLS declaration if it occurs before the copyright line
1,/Copyright.*Arm/I {
  /This file is part of/,$ {
    /Copyright.*Arm/I! d
  }
}

# Convert non-standard header in scripts/abi_check.py to the format used in the other scripts
/"""/,/"""/ {

  # Cut copyright declaration
  /Copyright.*Arm/I {
    h
    N
    d
  }

  # Paste copyright declaration
  /"""/ {
    x
    /./ {
      s/^/# /    # Add #
      x          # Replace orignal buffer with Copyright declaration
      p          # Print original buffer, insert newline
      i\

      s/.*//     # Clear original buffer
    }
    x
  }
}

/Copyright.*Arm/I {

  # Print copyright declaration
  p

  # Read the two lines immediately following the copyright declaration
  N
  N

  # Insert Apache header if it is missing
  /SPDX/! {
    i\
# SPDX-License-Identifier: Apache-2.0\
#\
# Licensed under the Apache License, Version 2.0 (the "License"); you may\
# not use this file except in compliance with the License.\
# You may obtain a copy of the License at\
#\
# http://www.apache.org/licenses/LICENSE-2.0\
#\
# Unless required by applicable law or agreed to in writing, software\
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT\
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\
# See the License for the specific language governing permissions and\
# limitations under the License.

    # Insert Mbed TLS declaration if it is missing
    /This file is part of/! i\
#\
# This file is part of Mbed TLS (https://tls.mbed.org)
  }

  # Clear copyright declaration from buffer
  D
}
'
# ========================

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2020-06-15 12:05:47 +02:00

104 lines
3.3 KiB
Perl
Executable File

#!/usr/bin/env perl
# A simple TCP client that sends some data and expects a response.
# Usage: tcp_client.pl HOSTNAME PORT DATA1 RESPONSE1
# DATA: hex-encoded data to send to the server
# RESPONSE: regexp that must match the server's response
#
# Copyright (C) 2017, Arm Limited, All Rights Reserved
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# This file is part of Mbed TLS (https://tls.mbed.org)
use warnings;
use strict;
use IO::Socket::INET;
# Pack hex digits into a binary string, ignoring whitespace.
sub parse_hex {
my ($hex) = @_;
$hex =~ s/\s+//g;
return pack('H*', $hex);
}
## Open a TCP connection to the specified host and port.
sub open_connection {
my ($host, $port) = @_;
my $socket = IO::Socket::INET->new(PeerAddr => $host,
PeerPort => $port,
Proto => 'tcp',
Timeout => 1);
die "Cannot connect to $host:$port: $!" unless $socket;
return $socket;
}
## Close the TCP connection.
sub close_connection {
my ($connection) = @_;
$connection->shutdown(2);
# Ignore shutdown failures (at least for now)
return 1;
}
## Write the given data, expressed as hexadecimal
sub write_data {
my ($connection, $hexdata) = @_;
my $data = parse_hex($hexdata);
my $total_sent = 0;
while ($total_sent < length($data)) {
my $sent = $connection->send($data, 0);
if (!defined $sent) {
die "Unable to send data: $!";
}
$total_sent += $sent;
}
return 1;
}
## Read a response and check it against an expected prefix
sub read_response {
my ($connection, $expected_hex) = @_;
my $expected_data = parse_hex($expected_hex);
my $start_offset = 0;
while ($start_offset < length($expected_data)) {
my $actual_data;
my $ok = $connection->recv($actual_data, length($expected_data));
if (!defined $ok) {
die "Unable to receive data: $!";
}
if (($actual_data ^ substr($expected_data, $start_offset)) =~ /[^\000]/) {
printf STDERR ("Received \\x%02x instead of \\x%02x at offset %d\n",
ord(substr($actual_data, $-[0], 1)),
ord(substr($expected_data, $start_offset + $-[0], 1)),
$start_offset + $-[0]);
return 0;
}
$start_offset += length($actual_data);
}
return 1;
}
if (@ARGV != 4) {
print STDERR "Usage: $0 HOSTNAME PORT DATA1 RESPONSE1\n";
exit(3);
}
my ($host, $port, $data1, $response1) = @ARGV;
my $connection = open_connection($host, $port);
write_data($connection, $data1);
if (!read_response($connection, $response1)) {
exit(1);
}
close_connection($connection);