/scripts/generate_errors.pl
Perl | 127 lines | 100 code | 24 blank | 3 comment | 19 complexity | 820ade8d9b7b9f6b7c0c9c73f2068daa MD5 | raw file
Possible License(s): GPL-2.0
- #!/usr/bin/perl
- #
- use strict;
- my $include_dir = shift or die "Missing include directory";
- my $data_dir = shift or die "Missing data directory";
- my $error_file = shift or die "Missing destination file";
- my $error_format_file = $data_dir.'/error.fmt';
- my @low_level_modules = ( "AES", "ASN1", "BLOWFISH", "CAMELLIA", "BIGNUM",
- "BASE64", "XTEA", "PBKDF2",
- "PADLOCK", "DES", "NET", "CTR_DRBG", "ENTROPY",
- "MD2", "MD4", "MD5", "SHA1", "SHA2", "SHA4", "GCM" );
- my @high_level_modules = ( "PEM", "X509", "DHM", "RSA", "MD", "CIPHER", "SSL" );
- my $line_separator = $/;
- undef $/;
- open(FORMAT_FILE, "$error_format_file") or die "Opening error format file '$error_format_file': $!";
- my $error_format = <FORMAT_FILE>;
- close(FORMAT_FILE);
- $/ = $line_separator;
- open(GREP, "/bin/grep \"define POLARSSL_ERR_\" $include_dir/* |") || die("Failure when calling grep: $!");
- my $ll_old_define = "";
- my $hl_old_define = "";
- my $ll_code_check = "";
- my $hl_code_check = "";
- my $headers = "";
- while (my $line = <GREP>)
- {
- my ($error_name, $error_code) = $line =~ /(POLARSSL_ERR_\w+)\s+\-(0x\w+)/;
- my ($description) = $line =~ /\/\*\*< (.*?)\.? \*\//;
- $description =~ s/\\/\\\\/g;
- $description = "DESCRIPTION MISSING" if ($description eq "");
- my ($module_name) = $error_name =~ /^POLARSSL_ERR_([^_]+)/;
- # Fix faulty ones
- $module_name = "BIGNUM" if ($module_name eq "MPI");
- $module_name = "CTR_DRBG" if ($module_name eq "CTR");
- my $define_name = $module_name;
- $define_name = "X509_PARSE" if ($define_name eq "X509");
- $define_name = "ASN1_PARSE" if ($define_name eq "ASN1");
- $define_name = "SSL_TLS" if ($define_name eq "SSL");
- my $include_name = $module_name;
- $include_name =~ tr/A-Z/a-z/;
- $include_name = "" if ($include_name eq "asn1");
- my $found_ll = grep $_ eq $module_name, @low_level_modules;
- my $found_hl = grep $_ eq $module_name, @high_level_modules;
- if (!$found_ll && !$found_hl)
- {
- printf("Error: Do not know how to handle: $module_name\n");
- exit 1;
- }
- my $code_check;
- my $old_define;
- my $white_space;
- if ($found_ll)
- {
- $code_check = \$ll_code_check;
- $old_define = \$ll_old_define;
- $white_space = ' ';
- }
- else
- {
- $code_check = \$hl_code_check;
- $old_define = \$hl_old_define;
- $white_space = ' ';
- }
- if ($define_name ne ${$old_define})
- {
- if (${$old_define} ne "")
- {
- ${$code_check} .= "#endif /* POLARSSL_${$old_define}_C */\n\n";
- }
- ${$code_check} .= "#if defined(POLARSSL_${define_name}_C)\n";
- $headers .= "#if defined(POLARSSL_${define_name}_C)\n".
- "#include \"polarssl/${include_name}.h\"\n".
- "#endif\n\n" if ($include_name ne "");
- ${$old_define} = $define_name;
- }
- if ($error_name eq "POLARSSL_ERR_SSL_FATAL_ALERT_MESSAGE")
- {
- ${$code_check} .= "${white_space}if( use_ret == -($error_name) )\n".
- "${white_space}\{\n".
- "${white_space} snprintf( buf, buflen, \"$module_name - $description\" );\n".
- "${white_space} return;\n".
- "${white_space}}\n"
- }
- else
- {
- ${$code_check} .= "${white_space}if( use_ret == -($error_name) )\n".
- "${white_space} snprintf( buf, buflen, \"$module_name - $description\" );\n"
- }
- };
- if ($ll_old_define ne "")
- {
- $ll_code_check .= "#endif /* POLARSSL_${ll_old_define}_C */\n\n";
- }
- if ($hl_old_define ne "")
- {
- $hl_code_check .= "#endif /* POLARSSL_${hl_old_define}_C */\n\n";
- }
- $error_format =~ s/HEADER_INCLUDED\n/$headers/g;
- $error_format =~ s/LOW_LEVEL_CODE_CHECKS\n/$ll_code_check/g;
- $error_format =~ s/HIGH_LEVEL_CODE_CHECKS\n/$hl_code_check/g;
- open(ERROR_FILE, ">$error_file") or die "Opening destination file '$error_file': $!";
- print ERROR_FILE $error_format;
- close(ERROR_FILE);