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#!/usr/bin/perl
#
# Script to convert "x11-fields" file, listing fields for
# X11 dissector, into header files declaring field-index
# values and field definitions for those fields.
#
# Instructions for using this script are in epan/dissectors/README.X11
#
# Copyright 2000, Christophe Tronche <ch.tronche[AT]computer.org>
#
# Wireshark - Network traffic analyzer
# By Gerald Combs <gerald@wireshark.org>
# Copyright 1998 Gerald Combs
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
open(DECL, ">x11-declarations.h") || die;
open(REG, ">x11-register-info.h") || die;
sub add_generated_header {
my ($out) = @_;
print $out <<eot
/* Do not modify this file. */
/* It was automatically generated by $0. */
eot
;
# Add license text
print $out <<eot
/*
* Copyright 2000, Christophe Tronche <ch.tronche[AT]computer.org>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald[AT]wireshark.org>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
eot
;
}
add_generated_header(DECL);
add_generated_header(REG);
$prefix = '';
$subfieldStringLength = 0;
while(<>) {
s/#.*$//go;
next if /^\s*$/o;
s/^(\s*)//o;
$subfield = $1;
if (length $subfield != $subfieldStringLength) {
if (!length $subfield) {
$prefix = '';
} elsif (length $subfield > $subfieldStringLength) {
$prefix .= "$lastAbbrev.";
} else {
$prefix =~ s/^(.*)\.[^\.]+\.$/$1./o;
}
$subfieldStringLength = length $subfield;
}
@fields = split /\s+/o ;
if ($fields[0] eq '#') {
#
# If the line begins with "#", treat it as a comment, by
# ignoring it.
#
# (We don't support comments at the end of a line; that would
# require some more pain in our simple parser.)
#
next;
}
$abbrev = shift @fields;
$type = shift @fields;
$lastAbbrev = $abbrev;
$field = $prefix.$abbrev;
if ($fields[0] =~ /^\d+$/o) {
#
# This is presumably a Boolean bitfield, and this is the number
# of bits in the parent field.
#
$fieldDisplay = shift @fields;
} else {
#
# The next token is the base for the field.
#
$fieldDisplay = "BASE_".shift @fields;
}
if ($fields[0] eq 'VALS') {
#
# It's an enumerated field, with the value_string table having a
# name based on the field's name.
#
shift @fields;
$fieldStrings = "VALS(${abbrev}_vals)";
$fieldStrings =~ s/-/_/go;
} elsif ($fields[0] =~ /^VALS\(/o) {
#
# It's an enumerated field, with a specified name for the
# value_string table.
#
$fieldStrings = shift @fields;
$fieldStrings =~ s/\)/_vals\)/o;
} else {
#
# It's not an enumerated field.
#
$fieldStrings = 'NULL';
}
if ($fields[0] =~ /^0x/) {
#
# The next token looks like a bitmask for a bitfield.
#
$mask = shift @fields;
} else {
$mask = 0;
}
$rest = join(' ', @fields);
$longName = uc $name;
$longName = $rest if ($rest);
# Don't allow empty blurbs
$longName = $longName eq "" ? "NULL" : "\"$longName\"";
$variable = $field;
$variable =~ s/-/_/go;
$variable =~ s/\./_/go;
print DECL "static int hf_x11_$variable = -1;\n";
print REG <<END;
{ &hf_x11_$variable, { "$abbrev", "x11.$field", FT_$type, $fieldDisplay, $fieldStrings, $mask, $longName, HFILL }},
END
}
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