134 lines
3.7 KiB
Perl
Executable File
134 lines
3.7 KiB
Perl
Executable File
#!/usr/bin/env perl
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#
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# Copyright The Mbed TLS Contributors
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# SPDX-License-Identifier: Apache-2.0
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# Purpose
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#
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# This script migrates application source code from the mbed TLS 1.3 API to the
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# mbed TLS 2.0 API.
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#
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# The script processes the given source code and renames identifiers - functions
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# types, enums etc, as
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#
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# Usage: rename.pl [-f datafile] [-s] [--] [filenames...]
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#
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use warnings;
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use strict;
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use utf8;
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use Path::Class;
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use open qw(:std utf8);
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my $usage = "Usage: $0 [-f datafile] [-s] [--] [filenames...]\n";
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(my $datafile = $0) =~ s/rename.pl$/data_files\/rename-1.3-2.0.txt/;
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my $do_strings = 0;
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while( @ARGV && $ARGV[0] =~ /^-/ ) {
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my $opt = shift;
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if( $opt eq '--' ) {
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last;
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} elsif( $opt eq '-f' ) {
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$datafile = shift;
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} elsif( $opt eq '-s' ) {
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$do_strings = 1; shift;
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} else {
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die $usage;
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}
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}
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my %subst;
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open my $nfh, '<', $datafile or die "Could not read $datafile\n";
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my $ident = qr/[_A-Za-z][_A-Za-z0-9]*/;
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while( my $line = <$nfh> ) {
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chomp $line;
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my ( $old, $new ) = ( $line =~ /^($ident)\s+($ident)$/ );
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if( ! $old || ! $new ) {
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die "$0: $datafile:$.: bad input '$line'\n";
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}
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$subst{$old} = $new;
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}
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close $nfh or die;
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my $string = qr/"(?:\\.|[^\\"])*"/;
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my $space = qr/\s+/;
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my $idnum = qr/[a-zA-Z0-9_]+/;
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my $symbols = qr/[-!#\$%&'()*+,.\/:;<=>?@[\\\]^_`{|}~]+|"/;
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my $lib_include_dir = dir($0)->parent->parent->subdir('include', 'mbedtls');
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my $lib_source_dir = dir($0)->parent->parent->subdir('library');
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# if we replace inside strings, we don't consider them a token
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my $token = $do_strings ? qr/$space|$idnum|$symbols/
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: qr/$string|$space|$idnum|$symbols/;
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my %warnings;
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# If no files were passed, exit...
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if ( not defined($ARGV[0]) ){ die $usage; }
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while( my $filename = shift )
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{
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print STDERR "$filename... ";
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if( dir($filename)->parent eq $lib_include_dir ||
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dir($filename)->parent eq $lib_source_dir )
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{
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die "Script cannot be executed on the mbed TLS library itself.";
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}
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if( -d $filename ) { print STDERR "skip (directory)\n"; next }
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open my $rfh, '<', $filename or die;
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my @lines = <$rfh>;
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close $rfh or die;
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my @out;
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for my $line (@lines) {
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if( $line =~ /#include/ ) {
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$line =~ s/polarssl/mbedtls/;
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$line =~ s/POLARSSL/MBEDTLS/;
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push( @out, $line );
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next;
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}
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my @words = ($line =~ /$token/g);
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my $checkline = join '', @words;
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if( $checkline eq $line ) {
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my @new = map { exists $subst{$_} ? $subst{$_} : $_ } @words;
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push( @out, join '', @new );
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} else {
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$warnings{$filename} = [] unless $warnings{$filename};
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push @{ $warnings{$filename} }, $line;
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push( @out, $line );
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}
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}
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open my $wfh, '>', $filename or die;
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print $wfh $_ for @out;
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close $wfh or die;
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print STDERR "done\n";
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}
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if( %warnings ) {
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print "\nWarning: lines skipped due to unexpected characters:\n";
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for my $filename (sort keys %warnings) {
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print "in $filename:\n";
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print for @{ $warnings{$filename} };
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}
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}
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