1#!/usr/local/bin/perl -w 2 3# Written by Dr Stephen N Henson (steve@openssl.org). 4# Licensed under the terms of the OpenSSL license. 5 6use strict; 7 8my ($i, @arr); 9 10# Set up an array with the type of ASCII characters 11# Each set bit represents a character property. 12 13# RFC2253 character properties 14my $RFC2253_ESC = 1; # Character escaped with \ 15my $ESC_CTRL = 2; # Escaped control character 16# These are used with RFC1779 quoting using " 17my $NOESC_QUOTE = 8; # Not escaped if quoted 18my $PSTRING_CHAR = 0x10; # Valid PrintableString character 19my $RFC2253_FIRST_ESC = 0x20; # Escaped with \ if first character 20my $RFC2253_LAST_ESC = 0x40; # Escaped with \ if last character 21 22for($i = 0; $i < 128; $i++) { 23 # Set the RFC2253 escape characters (control) 24 $arr[$i] = 0; 25 if(($i < 32) || ($i > 126)) { 26 $arr[$i] |= $ESC_CTRL; 27 } 28 29 # Some PrintableString characters 30 if( ( ( $i >= ord("a")) && ( $i <= ord("z")) ) 31 || ( ( $i >= ord("A")) && ( $i <= ord("Z")) ) 32 || ( ( $i >= ord("0")) && ( $i <= ord("9")) ) ) { 33 $arr[$i] |= $PSTRING_CHAR; 34 } 35} 36 37# Now setup the rest 38 39# Remaining RFC2253 escaped characters 40 41$arr[ord(" ")] |= $NOESC_QUOTE | $RFC2253_FIRST_ESC | $RFC2253_LAST_ESC; 42$arr[ord("#")] |= $NOESC_QUOTE | $RFC2253_FIRST_ESC; 43 44$arr[ord(",")] |= $NOESC_QUOTE | $RFC2253_ESC; 45$arr[ord("+")] |= $NOESC_QUOTE | $RFC2253_ESC; 46$arr[ord("\"")] |= $RFC2253_ESC; 47$arr[ord("\\")] |= $RFC2253_ESC; 48$arr[ord("<")] |= $NOESC_QUOTE | $RFC2253_ESC; 49$arr[ord(">")] |= $NOESC_QUOTE | $RFC2253_ESC; 50$arr[ord(";")] |= $NOESC_QUOTE | $RFC2253_ESC; 51 52# Remaining PrintableString characters 53 54$arr[ord(" ")] |= $PSTRING_CHAR; 55$arr[ord("'")] |= $PSTRING_CHAR; 56$arr[ord("(")] |= $PSTRING_CHAR; 57$arr[ord(")")] |= $PSTRING_CHAR; 58$arr[ord("+")] |= $PSTRING_CHAR; 59$arr[ord(",")] |= $PSTRING_CHAR; 60$arr[ord("-")] |= $PSTRING_CHAR; 61$arr[ord(".")] |= $PSTRING_CHAR; 62$arr[ord("/")] |= $PSTRING_CHAR; 63$arr[ord(":")] |= $PSTRING_CHAR; 64$arr[ord("=")] |= $PSTRING_CHAR; 65$arr[ord("?")] |= $PSTRING_CHAR; 66 67# Now generate the C code 68 69print <<EOF; 70/* Auto generated with chartype.pl script. 71 * Mask of various character properties 72 */ 73 74static unsigned char char_type[] = { 75EOF 76 77for($i = 0; $i < 128; $i++) { 78 print("\n") if($i && (($i % 16) == 0)); 79 printf("%2d", $arr[$i]); 80 print(",") if ($i != 127); 81} 82print("\n};\n\n"); 83 84