1 /* crypto/x509/x509_obj.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/lhash.h> 62 #include <openssl/objects.h> 63 #include <openssl/x509.h> 64 #include <openssl/buffer.h> 65 66 /* 67 * Limit to ensure we don't overflow: much greater than 68 * anything enountered in practice. 69 */ 70 71 #define NAME_ONELINE_MAX (1024 * 1024) 72 73 char *X509_NAME_oneline(X509_NAME *a, char *buf, int len) 74 { 75 X509_NAME_ENTRY *ne; 76 int i; 77 int n, lold, l, l1, l2, num, j, type; 78 const char *s; 79 char *p; 80 unsigned char *q; 81 BUF_MEM *b = NULL; 82 static const char hex[17] = "0123456789ABCDEF"; 83 int gs_doit[4]; 84 char tmp_buf[80]; 85 #ifdef CHARSET_EBCDIC 86 char ebcdic_buf[1024]; 87 #endif 88 89 if (buf == NULL) { 90 if ((b = BUF_MEM_new()) == NULL) 91 goto err; 92 if (!BUF_MEM_grow(b, 200)) 93 goto err; 94 b->data[0] = '\0'; 95 len = 200; 96 } else if (len == 0) { 97 return NULL; 98 } 99 if (a == NULL) { 100 if (b) { 101 buf = b->data; 102 OPENSSL_free(b); 103 } 104 strncpy(buf, "NO X509_NAME", len); 105 buf[len - 1] = '\0'; 106 return buf; 107 } 108 109 len--; /* space for '\0' */ 110 l = 0; 111 for (i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) { 112 ne = sk_X509_NAME_ENTRY_value(a->entries, i); 113 n = OBJ_obj2nid(ne->object); 114 if ((n == NID_undef) || ((s = OBJ_nid2sn(n)) == NULL)) { 115 i2t_ASN1_OBJECT(tmp_buf, sizeof(tmp_buf), ne->object); 116 s = tmp_buf; 117 } 118 l1 = strlen(s); 119 120 type = ne->value->type; 121 num = ne->value->length; 122 if (num > NAME_ONELINE_MAX) { 123 X509err(X509_F_X509_NAME_ONELINE, X509_R_NAME_TOO_LONG); 124 goto end; 125 } 126 q = ne->value->data; 127 #ifdef CHARSET_EBCDIC 128 if (type == V_ASN1_GENERALSTRING || 129 type == V_ASN1_VISIBLESTRING || 130 type == V_ASN1_PRINTABLESTRING || 131 type == V_ASN1_TELETEXSTRING || 132 type == V_ASN1_IA5STRING) { 133 if (num > (int)sizeof(ebcdic_buf)) 134 num = sizeof(ebcdic_buf); 135 ascii2ebcdic(ebcdic_buf, q, num); 136 q = ebcdic_buf; 137 } 138 #endif 139 140 if ((type == V_ASN1_GENERALSTRING) && ((num % 4) == 0)) { 141 gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 0; 142 for (j = 0; j < num; j++) 143 if (q[j] != 0) 144 gs_doit[j & 3] = 1; 145 146 if (gs_doit[0] | gs_doit[1] | gs_doit[2]) 147 gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 1; 148 else { 149 gs_doit[0] = gs_doit[1] = gs_doit[2] = 0; 150 gs_doit[3] = 1; 151 } 152 } else 153 gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 1; 154 155 for (l2 = j = 0; j < num; j++) { 156 if (!gs_doit[j & 3]) 157 continue; 158 l2++; 159 #ifndef CHARSET_EBCDIC 160 if ((q[j] < ' ') || (q[j] > '~')) 161 l2 += 3; 162 #else 163 if ((os_toascii[q[j]] < os_toascii[' ']) || 164 (os_toascii[q[j]] > os_toascii['~'])) 165 l2 += 3; 166 #endif 167 } 168 169 lold = l; 170 l += 1 + l1 + 1 + l2; 171 if (l > NAME_ONELINE_MAX) { 172 X509err(X509_F_X509_NAME_ONELINE, X509_R_NAME_TOO_LONG); 173 goto end; 174 } 175 if (b != NULL) { 176 if (!BUF_MEM_grow(b, l + 1)) 177 goto err; 178 p = &(b->data[lold]); 179 } else if (l > len) { 180 break; 181 } else 182 p = &(buf[lold]); 183 *(p++) = '/'; 184 memcpy(p, s, (unsigned int)l1); 185 p += l1; 186 *(p++) = '='; 187 188 #ifndef CHARSET_EBCDIC /* q was assigned above already. */ 189 q = ne->value->data; 190 #endif 191 192 for (j = 0; j < num; j++) { 193 if (!gs_doit[j & 3]) 194 continue; 195 #ifndef CHARSET_EBCDIC 196 n = q[j]; 197 if ((n < ' ') || (n > '~')) { 198 *(p++) = '\\'; 199 *(p++) = 'x'; 200 *(p++) = hex[(n >> 4) & 0x0f]; 201 *(p++) = hex[n & 0x0f]; 202 } else 203 *(p++) = n; 204 #else 205 n = os_toascii[q[j]]; 206 if ((n < os_toascii[' ']) || (n > os_toascii['~'])) { 207 *(p++) = '\\'; 208 *(p++) = 'x'; 209 *(p++) = hex[(n >> 4) & 0x0f]; 210 *(p++) = hex[n & 0x0f]; 211 } else 212 *(p++) = q[j]; 213 #endif 214 } 215 *p = '\0'; 216 } 217 if (b != NULL) { 218 p = b->data; 219 OPENSSL_free(b); 220 } else 221 p = buf; 222 if (i == 0) 223 *p = '\0'; 224 return (p); 225 err: 226 X509err(X509_F_X509_NAME_ONELINE, ERR_R_MALLOC_FAILURE); 227 end: 228 BUF_MEM_free(b); 229 return (NULL); 230 } 231