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