1 /* crypto/asn1/a_print.c */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59 #include <stdio.h> 60 #include "cryptlib.h" 61 #include <openssl/asn1.h> 62 63 int ASN1_PRINTABLE_type(const unsigned char *s, int len) 64 { 65 int c; 66 int ia5=0; 67 int t61=0; 68 69 if (len <= 0) len= -1; 70 if (s == NULL) return(V_ASN1_PRINTABLESTRING); 71 72 while ((*s) && (len-- != 0)) 73 { 74 c= *(s++); 75 #ifndef CHARSET_EBCDIC 76 if (!( ((c >= 'a') && (c <= 'z')) || 77 ((c >= 'A') && (c <= 'Z')) || 78 (c == ' ') || 79 ((c >= '0') && (c <= '9')) || 80 (c == ' ') || (c == '\'') || 81 (c == '(') || (c == ')') || 82 (c == '+') || (c == ',') || 83 (c == '-') || (c == '.') || 84 (c == '/') || (c == ':') || 85 (c == '=') || (c == '?'))) 86 ia5=1; 87 if (c&0x80) 88 t61=1; 89 #else 90 if (!isalnum(c) && (c != ' ') && 91 strchr("'()+,-./:=?", c) == NULL) 92 ia5=1; 93 if (os_toascii[c] & 0x80) 94 t61=1; 95 #endif 96 } 97 if (t61) return(V_ASN1_T61STRING); 98 if (ia5) return(V_ASN1_IA5STRING); 99 return(V_ASN1_PRINTABLESTRING); 100 } 101 102 int ASN1_UNIVERSALSTRING_to_string(ASN1_UNIVERSALSTRING *s) 103 { 104 int i; 105 unsigned char *p; 106 107 if (s->type != V_ASN1_UNIVERSALSTRING) return(0); 108 if ((s->length%4) != 0) return(0); 109 p=s->data; 110 for (i=0; i<s->length; i+=4) 111 { 112 if ((p[0] != '\0') || (p[1] != '\0') || (p[2] != '\0')) 113 break; 114 else 115 p+=4; 116 } 117 if (i < s->length) return(0); 118 p=s->data; 119 for (i=3; i<s->length; i+=4) 120 { 121 *(p++)=s->data[i]; 122 } 123 *(p)='\0'; 124 s->length/=4; 125 s->type=ASN1_PRINTABLE_type(s->data,s->length); 126 return(1); 127 } 128