309a47997e
Update tools to not initialize static proto values to -1. This will update dissectors for asterix, ncp2222 and x11.
166 lines
3.9 KiB
Perl
Executable file
166 lines
3.9 KiB
Perl
Executable file
#!/usr/bin/perl
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#
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# Script to convert "x11-fields" file, listing fields for
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# X11 dissector, into header files declaring field-index
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# values and field definitions for those fields.
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#
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# Instructions for using this script are in epan/dissectors/README.X11
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#
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# Copyright 2000, Christophe Tronche <ch.tronche[AT]computer.org>
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#
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# Wireshark - Network traffic analyzer
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# By Gerald Combs <gerald@wireshark.org>
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# Copyright 1998 Gerald Combs
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#
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# SPDX-License-Identifier: GPL-2.0-or-later
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#
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use File::Spec;
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my $srcdir = shift;
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die "'$srcdir' is not a directory" unless -d $srcdir;
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open(DECL, "> $srcdir/x11-declarations.h") || die;
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open(REG, "> $srcdir/x11-register-info.h") || die;
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my $script_name = File::Spec->abs2rel ($0, $srcdir);
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sub add_generated_header {
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my ($out) = @_;
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print $out <<eot
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/* Do not modify this file. */
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/* It was automatically generated by $script_name. */
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eot
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;
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# Add license text
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print $out <<eot
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/*
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* Copyright 2000, Christophe Tronche <ch.tronche[AT]computer.org>
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald[AT]wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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eot
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;
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}
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add_generated_header(DECL);
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add_generated_header(REG);
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$prefix = '';
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$subfieldStringLength = 0;
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while(<>) {
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s/#.*$//go;
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next if /^\s*$/o;
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s/^(\s*)//o;
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$subfield = $1;
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if (length $subfield != $subfieldStringLength) {
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if (!length $subfield) {
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$prefix = '';
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} elsif (length $subfield > $subfieldStringLength) {
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$prefix .= "$lastAbbrev.";
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} else {
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$prefix =~ s/^(.*)\.[^\.]+\.$/$1./o;
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}
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$subfieldStringLength = length $subfield;
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}
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@fields = split /\s+/o ;
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if ($fields[0] eq '#') {
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#
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# If the line begins with "#", treat it as a comment, by
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# ignoring it.
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#
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# (We don't support comments at the end of a line; that would
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# require some more pain in our simple parser.)
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#
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next;
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}
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$abbrev = shift @fields;
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$type = shift @fields;
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$lastAbbrev = $abbrev;
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$field = $prefix.$abbrev;
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if ($fields[0] =~ /^\d+$/o) {
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#
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# This is presumably a Boolean bitfield, and this is the number
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# of bits in the parent field.
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#
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$fieldDisplay = shift @fields;
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} else {
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#
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# The next token is the base for the field.
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#
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$fieldDisplay = "BASE_".shift @fields;
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}
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if ($fields[0] eq 'VALS') {
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#
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# It's an enumerated field, with the value_string table having a
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# name based on the field's name.
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#
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shift @fields;
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$fieldStrings = "VALS(${abbrev}_vals)";
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$fieldStrings =~ s/-/_/go;
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} elsif ($fields[0] =~ /^VALS\(/o) {
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#
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# It's an enumerated field, with a specified name for the
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# value_string table.
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#
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$fieldStrings = shift @fields;
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$fieldStrings =~ s/\)/_vals\)/o;
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} else {
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#
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# It's not an enumerated field.
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#
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$fieldStrings = 'NULL';
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}
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if ($fields[0] =~ /^0x/) {
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#
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# The next token looks like a bitmask for a bitfield.
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#
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$mask = shift @fields;
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} else {
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$mask = 0;
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}
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$rest = join(' ', @fields);
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$longName = uc $name;
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$longName = $rest if ($rest);
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# Don't allow empty blurbs
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$longName = $longName eq "" ? "NULL" : "\"$longName\"";
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$variable = $field;
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$variable =~ s/-/_/go;
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$variable =~ s/\./_/go;
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print DECL "static int hf_x11_$variable;\n";
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print REG <<END;
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{ &hf_x11_$variable, { "$abbrev", "x11.$field", FT_$type, $fieldDisplay, $fieldStrings, $mask, $longName, HFILL }},
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END
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}
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#
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# Editor modelines
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#
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# Local Variables:
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# c-basic-offset: 4
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# tab-width: 8
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# indent-tabs-mode: nil
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# End:
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#
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# ex: set shiftwidth=4 tabstop=8 expandtab:
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# :indentSize=4:tabSize=8:noTabs=true:
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#
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