1 /* $OpenBSD: x509_obj.c,v 1.22 2023/02/16 08:38:17 tb 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 <string.h> 61 62 #include <openssl/buffer.h> 63 #include <openssl/err.h> 64 #include <openssl/lhash.h> 65 #include <openssl/objects.h> 66 #include <openssl/x509.h> 67 68 #include "x509_local.h" 69 70 char * 71 X509_NAME_oneline(const X509_NAME *a, char *buf, int len) 72 { 73 X509_NAME_ENTRY *ne; 74 int i; 75 int n, lold, l, l1, l2, num, j, type; 76 const char *s; 77 char *p; 78 unsigned char *q; 79 BUF_MEM *b = NULL; 80 static const char hex[17] = "0123456789ABCDEF"; 81 int gs_doit[4]; 82 char tmp_buf[80]; 83 84 if (buf == NULL) { 85 if ((b = BUF_MEM_new()) == NULL) 86 goto err; 87 if (!BUF_MEM_grow(b, 200)) 88 goto err; 89 b->data[0] = '\0'; 90 len = 200; 91 } 92 if (a == NULL) { 93 if (b) { 94 buf = b->data; 95 free(b); 96 } 97 strlcpy(buf, "NO X509_NAME", len); 98 return buf; 99 } 100 101 len--; /* space for '\0' */ 102 l = 0; 103 for (i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) { 104 ne = sk_X509_NAME_ENTRY_value(a->entries, i); 105 n = OBJ_obj2nid(ne->object); 106 if ((n == NID_undef) || ((s = OBJ_nid2sn(n)) == NULL)) { 107 i2t_ASN1_OBJECT(tmp_buf, sizeof(tmp_buf), ne->object); 108 s = tmp_buf; 109 } 110 l1 = strlen(s); 111 112 type = ne->value->type; 113 num = ne->value->length; 114 q = ne->value->data; 115 if ((type == V_ASN1_GENERALSTRING) && ((num % 4) == 0)) { 116 gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 0; 117 for (j = 0; j < num; j++) 118 if (q[j] != 0) 119 gs_doit[j & 3] = 1; 120 121 if (gs_doit[0]|gs_doit[1]|gs_doit[2]) 122 gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 1; 123 else { 124 gs_doit[0] = gs_doit[1] = gs_doit[2] = 0; 125 gs_doit[3] = 1; 126 } 127 } else 128 gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 1; 129 130 for (l2 = j=0; j < num; j++) { 131 if (!gs_doit[j&3]) 132 continue; 133 l2++; 134 if ((q[j] < ' ') || (q[j] > '~')) 135 l2 += 3; 136 } 137 138 lold = l; 139 l += 1 + l1 + 1 + l2; 140 if (b != NULL) { 141 if (!BUF_MEM_grow(b, l + 1)) 142 goto err; 143 p = &(b->data[lold]); 144 } else if (l > len) { 145 break; 146 } else 147 p = &(buf[lold]); 148 *(p++) = '/'; 149 memcpy(p, s, l1); 150 p += l1; 151 *(p++) = '='; 152 q = ne->value->data; 153 for (j = 0; j < num; j++) { 154 if (!gs_doit[j & 3]) 155 continue; 156 n = q[j]; 157 if ((n < ' ') || (n > '~')) { 158 *(p++) = '\\'; 159 *(p++) = 'x'; 160 *(p++) = hex[(n >> 4) & 0x0f]; 161 *(p++) = hex[n & 0x0f]; 162 } else 163 *(p++) = n; 164 } 165 *p = '\0'; 166 } 167 if (b != NULL) { 168 p = b->data; 169 free(b); 170 } else 171 p = buf; 172 if (i == 0) 173 *p = '\0'; 174 return (p); 175 176 err: 177 X509error(ERR_R_MALLOC_FAILURE); 178 if (b != NULL) 179 BUF_MEM_free(b); 180 return (NULL); 181 } 182 LCRYPTO_ALIAS(X509_NAME_oneline); 183