1 /* $OpenBSD: a_print.c,v 1.11 2014/07/11 08:44:47 jsing Exp $ */ 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 61 #include <openssl/asn1.h> 62 63 int 64 ASN1_PRINTABLE_type(const unsigned char *s, int len) 65 { 66 int c; 67 int ia5 = 0; 68 int t61 = 0; 69 70 if (len <= 0) 71 len = -1; 72 if (s == NULL) 73 return (V_ASN1_PRINTABLESTRING); 74 75 while ((*s) && (len-- != 0)) { 76 c= *(s++); 77 if (!(((c >= 'a') && (c <= 'z')) || 78 ((c >= 'A') && (c <= 'Z')) || 79 (c == ' ') || 80 ((c >= '0') && (c <= '9')) || 81 (c == ' ') || (c == '\'') || 82 (c == '(') || (c == ')') || 83 (c == '+') || (c == ',') || 84 (c == '-') || (c == '.') || 85 (c == '/') || (c == ':') || 86 (c == '=') || (c == '?'))) 87 ia5 = 1; 88 if (c & 0x80) 89 t61 = 1; 90 } 91 if (t61) 92 return (V_ASN1_T61STRING); 93 if (ia5) 94 return (V_ASN1_IA5STRING); 95 return (V_ASN1_PRINTABLESTRING); 96 } 97 98 int 99 ASN1_UNIVERSALSTRING_to_string(ASN1_UNIVERSALSTRING *s) 100 { 101 int i; 102 unsigned char *p; 103 104 if (s->type != V_ASN1_UNIVERSALSTRING) 105 return (0); 106 if ((s->length % 4) != 0) 107 return (0); 108 p = s->data; 109 for (i = 0; i < s->length; i += 4) { 110 if ((p[0] != '\0') || (p[1] != '\0') || (p[2] != '\0')) 111 break; 112 else 113 p += 4; 114 } 115 if (i < s->length) 116 return (0); 117 p = s->data; 118 for (i = 3; i < s->length; i += 4) { 119 *(p++) = s->data[i]; 120 } 121 *(p) = '\0'; 122 s->length /= 4; 123 s->type = ASN1_PRINTABLE_type(s->data, s->length); 124 return (1); 125 } 126