1#!/usr/local/bin/perl -w
2
3# Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
4# 2000.
5#
6# ====================================================================
7# Copyright (c) 2000 The OpenSSL Project.  All rights reserved.
8#
9# Redistribution and use in source and binary forms, with or without
10# modification, are permitted provided that the following conditions
11# are met:
12#
13# 1. Redistributions of source code must retain the above copyright
14#    notice, this list of conditions and the following disclaimer.
15#
16# 2. Redistributions in binary form must reproduce the above copyright
17#    notice, this list of conditions and the following disclaimer in
18#    the documentation and/or other materials provided with the
19#    distribution.
20#
21# 3. All advertising materials mentioning features or use of this
22#    software must display the following acknowledgment:
23#    "This product includes software developed by the OpenSSL Project
24#    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25#
26# 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27#    endorse or promote products derived from this software without
28#    prior written permission. For written permission, please contact
29#    licensing@OpenSSL.org.
30#
31# 5. Products derived from this software may not be called "OpenSSL"
32#    nor may "OpenSSL" appear in their names without prior written
33#    permission of the OpenSSL Project.
34#
35# 6. Redistributions of any form whatsoever must retain the following
36#    acknowledgment:
37#    "This product includes software developed by the OpenSSL Project
38#    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39#
40# THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41# EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
44# ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51# OF THE POSSIBILITY OF SUCH DAMAGE.
52# ====================================================================
53#
54# This product includes cryptographic software written by Eric Young
55# (eay@cryptsoft.com).  This product includes software written by Tim
56# Hudson (tjh@cryptsoft.com).
57
58use strict;
59
60my ($i, @arr);
61
62# Set up an array with the type of ASCII characters
63# Each set bit represents a character property.
64
65# RFC2253 character properties
66my $RFC2253_ESC = 1;	# Character escaped with \
67my $ESC_CTRL	= 2;	# Escaped control character
68# These are used with RFC1779 quoting using "
69my $NOESC_QUOTE	= 8;	# Not escaped if quoted
70my $PSTRING_CHAR = 0x10;	# Valid PrintableString character
71my $RFC2253_FIRST_ESC = 0x20; # Escaped with \ if first character
72my $RFC2253_LAST_ESC = 0x40;  # Escaped with \ if last character
73
74for($i = 0; $i < 128; $i++) {
75	# Set the RFC2253 escape characters (control)
76	$arr[$i] = 0;
77	if(($i < 32) || ($i > 126)) {
78		$arr[$i] |= $ESC_CTRL;
79	}
80
81	# Some PrintableString characters
82	if(		   ( ( $i >= ord("a")) && ( $i <= ord("z")) )
83			|| (  ( $i >= ord("A")) && ( $i <= ord("Z")) )
84			|| (  ( $i >= ord("0")) && ( $i <= ord("9")) )  ) {
85		$arr[$i] |= $PSTRING_CHAR;
86	}
87}
88
89# Now setup the rest
90
91# Remaining RFC2253 escaped characters
92
93$arr[ord(" ")] |= $NOESC_QUOTE | $RFC2253_FIRST_ESC | $RFC2253_LAST_ESC;
94$arr[ord("#")] |= $NOESC_QUOTE | $RFC2253_FIRST_ESC;
95
96$arr[ord(",")] |= $NOESC_QUOTE | $RFC2253_ESC;
97$arr[ord("+")] |= $NOESC_QUOTE | $RFC2253_ESC;
98$arr[ord("\"")] |= $RFC2253_ESC;
99$arr[ord("\\")] |= $RFC2253_ESC;
100$arr[ord("<")] |= $NOESC_QUOTE | $RFC2253_ESC;
101$arr[ord(">")] |= $NOESC_QUOTE | $RFC2253_ESC;
102$arr[ord(";")] |= $NOESC_QUOTE | $RFC2253_ESC;
103
104# Remaining PrintableString characters
105
106$arr[ord(" ")] |= $PSTRING_CHAR;
107$arr[ord("'")] |= $PSTRING_CHAR;
108$arr[ord("(")] |= $PSTRING_CHAR;
109$arr[ord(")")] |= $PSTRING_CHAR;
110$arr[ord("+")] |= $PSTRING_CHAR;
111$arr[ord(",")] |= $PSTRING_CHAR;
112$arr[ord("-")] |= $PSTRING_CHAR;
113$arr[ord(".")] |= $PSTRING_CHAR;
114$arr[ord("/")] |= $PSTRING_CHAR;
115$arr[ord(":")] |= $PSTRING_CHAR;
116$arr[ord("=")] |= $PSTRING_CHAR;
117$arr[ord("?")] |= $PSTRING_CHAR;
118
119# Now generate the C code
120
121print <<EOF;
122/* Auto generated with chartype.pl script.
123 * Mask of various character properties
124 */
125
126static const unsigned char char_type[] = {
127EOF
128
129for($i = 0; $i < 128; $i++) {
130	print("\n") if($i && (($i % 16) == 0));
131	printf("%2d", $arr[$i]);
132	print(",") if ($i != 127);
133}
134print("\n};\n\n");
135
136