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      1 #!/usr/local/bin/perl -w
      2 
      3 # Written by Dr Stephen N Henson (steve (at] 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 (at] 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 (at] cryptsoft.com).  This product includes software written by Tim
     56 # Hudson (tjh (at] cryptsoft.com).
     57 
     58 use strict;
     59 
     60 my ($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
     66 my $RFC2253_ESC = 1;	# Character escaped with \
     67 my $ESC_CTRL	= 2;	# Escaped control character
     68 # These are used with RFC1779 quoting using "
     69 my $NOESC_QUOTE	= 8;	# Not escaped if quoted
     70 my $PSTRING_CHAR = 0x10;	# Valid PrintableString character
     71 my $RFC2253_FIRST_ESC = 0x20; # Escaped with \ if first character
     72 my $RFC2253_LAST_ESC = 0x40;  # Escaped with \ if last character
     73 
     74 for($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("?")] |= $PSTRING_CHAR;
    118 
    119 # Now generate the C code
    120 
    121 print <<EOF;
    122 /* Auto generated with chartype.pl script.
    123  * Mask of various character properties
    124  */
    125 
    126 static const unsigned char char_type[] = {
    127 EOF
    128 
    129 for($i = 0; $i < 128; $i++) {
    130 	print("\n") if($i && (($i % 16) == 0));
    131 	printf("%2d", $arr[$i]);
    132 	print(",") if ($i != 127);
    133 }
    134 print("\n};\n\n");
    135 
    136