1 /* $OpenBSD: x509_obj.c,v 1.13 2014/06/12 15:49:31 deraadt 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 #include "cryptlib.h" 61 #include <openssl/lhash.h> 62 #include <openssl/objects.h> 63 #include <openssl/x509.h> 64 #include <openssl/buffer.h> 65 66 char * 67 X509_NAME_oneline(X509_NAME *a, char *buf, int len) 68 { 69 X509_NAME_ENTRY *ne; 70 int i; 71 int n, lold, l, l1, l2, num, j, type; 72 const char *s; 73 char *p; 74 unsigned char *q; 75 BUF_MEM *b = NULL; 76 static const char hex[17] = "0123456789ABCDEF"; 77 int gs_doit[4]; 78 char tmp_buf[80]; 79 80 if (buf == NULL) { 81 if ((b = BUF_MEM_new()) == NULL) 82 goto err; 83 if (!BUF_MEM_grow(b, 200)) 84 goto err; 85 b->data[0] = '\0'; 86 len = 200; 87 } 88 if (a == NULL) { 89 if (b) { 90 buf = b->data; 91 free(b); 92 } 93 strlcpy(buf, "NO X509_NAME", len); 94 return buf; 95 } 96 97 len--; /* space for '\0' */ 98 l = 0; 99 for (i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) { 100 ne = sk_X509_NAME_ENTRY_value(a->entries, i); 101 n = OBJ_obj2nid(ne->object); 102 if ((n == NID_undef) || ((s = OBJ_nid2sn(n)) == NULL)) { 103 i2t_ASN1_OBJECT(tmp_buf, sizeof(tmp_buf), ne->object); 104 s = tmp_buf; 105 } 106 l1 = strlen(s); 107 108 type = ne->value->type; 109 num = ne->value->length; 110 q = ne->value->data; 111 if ((type == V_ASN1_GENERALSTRING) && ((num % 4) == 0)) { 112 gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 0; 113 for (j = 0; j < num; j++) 114 if (q[j] != 0) 115 gs_doit[j & 3] = 1; 116 117 if (gs_doit[0]|gs_doit[1]|gs_doit[2]) 118 gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 1; 119 else { 120 gs_doit[0] = gs_doit[1] = gs_doit[2] = 0; 121 gs_doit[3] = 1; 122 } 123 } else 124 gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 1; 125 126 for (l2 = j=0; j < num; j++) { 127 if (!gs_doit[j&3]) 128 continue; 129 l2++; 130 if ((q[j] < ' ') || (q[j] > '~')) 131 l2 += 3; 132 } 133 134 lold = l; 135 l += 1 + l1 + 1 + l2; 136 if (b != NULL) { 137 if (!BUF_MEM_grow(b, l + 1)) 138 goto err; 139 p = &(b->data[lold]); 140 } else if (l > len) { 141 break; 142 } else 143 p = &(buf[lold]); 144 *(p++) = '/'; 145 memcpy(p, s, (unsigned int)l1); 146 p += l1; 147 *(p++) = '='; 148 q = ne->value->data; 149 for (j = 0; j < num; j++) { 150 if (!gs_doit[j & 3]) 151 continue; 152 n = q[j]; 153 if ((n < ' ') || (n > '~')) { 154 *(p++) = '\\'; 155 *(p++) = 'x'; 156 *(p++) = hex[(n >> 4) & 0x0f]; 157 *(p++) = hex[n & 0x0f]; 158 } else 159 *(p++) = n; 160 } 161 *p = '\0'; 162 } 163 if (b != NULL) { 164 p = b->data; 165 free(b); 166 } else 167 p = buf; 168 if (i == 0) 169 *p = '\0'; 170 return (p); 171 172 err: 173 X509err(X509_F_X509_NAME_ONELINE, ERR_R_MALLOC_FAILURE); 174 if (b != NULL) 175 BUF_MEM_free(b); 176 return (NULL); 177 } 178