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 <string.h> 58 59 #include <openssl/asn1.h> 60 #include <openssl/err.h> 61 #include <openssl/evp.h> 62 #include <openssl/obj.h> 63 #include <openssl/stack.h> 64 #include <openssl/x509.h> 65 66 67 int X509_NAME_get_text_by_NID(X509_NAME *name, int nid, char *buf, int len) 68 { 69 const ASN1_OBJECT *obj; 70 71 obj=OBJ_nid2obj(nid); 72 if (obj == NULL) return(-1); 73 return(X509_NAME_get_text_by_OBJ(name,obj,buf,len)); 74 } 75 76 int X509_NAME_get_text_by_OBJ(X509_NAME *name, const ASN1_OBJECT *obj, char *buf, 77 int len) 78 { 79 int i; 80 ASN1_STRING *data; 81 82 i=X509_NAME_get_index_by_OBJ(name,obj,-1); 83 if (i < 0) return(-1); 84 data=X509_NAME_ENTRY_get_data(X509_NAME_get_entry(name,i)); 85 i=(data->length > (len-1))?(len-1):data->length; 86 if (buf == NULL) return(data->length); 87 memcpy(buf,data->data,i); 88 buf[i]='\0'; 89 return(i); 90 } 91 92 int X509_NAME_entry_count(X509_NAME *name) 93 { 94 if (name == NULL) return(0); 95 return(sk_X509_NAME_ENTRY_num(name->entries)); 96 } 97 98 int X509_NAME_get_index_by_NID(X509_NAME *name, int nid, int lastpos) 99 { 100 const ASN1_OBJECT *obj; 101 102 obj=OBJ_nid2obj(nid); 103 if (obj == NULL) return(-2); 104 return(X509_NAME_get_index_by_OBJ(name,obj,lastpos)); 105 } 106 107 /* NOTE: you should be passsing -1, not 0 as lastpos */ 108 int X509_NAME_get_index_by_OBJ(X509_NAME *name, const ASN1_OBJECT *obj, 109 int lastpos) 110 { 111 int n; 112 X509_NAME_ENTRY *ne; 113 STACK_OF(X509_NAME_ENTRY) *sk; 114 115 if (name == NULL) return(-1); 116 if (lastpos < 0) 117 lastpos= -1; 118 sk=name->entries; 119 n=sk_X509_NAME_ENTRY_num(sk); 120 for (lastpos++; lastpos < n; lastpos++) 121 { 122 ne=sk_X509_NAME_ENTRY_value(sk,lastpos); 123 if (OBJ_cmp(ne->object,obj) == 0) 124 return(lastpos); 125 } 126 return(-1); 127 } 128 129 X509_NAME_ENTRY *X509_NAME_get_entry(X509_NAME *name, int loc) 130 { 131 if(name == NULL || loc < 0 || sk_X509_NAME_ENTRY_num(name->entries) <= (size_t) loc) 132 return(NULL); 133 else 134 return(sk_X509_NAME_ENTRY_value(name->entries,loc)); 135 } 136 137 X509_NAME_ENTRY *X509_NAME_delete_entry(X509_NAME *name, int loc) 138 { 139 X509_NAME_ENTRY *ret; 140 int i,n,set_prev,set_next; 141 STACK_OF(X509_NAME_ENTRY) *sk; 142 143 if (name == NULL || loc < 0 || sk_X509_NAME_ENTRY_num(name->entries) <= (size_t) loc) 144 return(NULL); 145 sk=name->entries; 146 ret=sk_X509_NAME_ENTRY_delete(sk,loc); 147 n=sk_X509_NAME_ENTRY_num(sk); 148 name->modified=1; 149 if (loc == n) return(ret); 150 151 /* else we need to fixup the set field */ 152 if (loc != 0) 153 set_prev=(sk_X509_NAME_ENTRY_value(sk,loc-1))->set; 154 else 155 set_prev=ret->set-1; 156 set_next=sk_X509_NAME_ENTRY_value(sk,loc)->set; 157 158 /* set_prev is the previous set 159 * set is the current set 160 * set_next is the following 161 * prev 1 1 1 1 1 1 1 1 162 * set 1 1 2 2 163 * next 1 1 2 2 2 2 3 2 164 * so basically only if prev and next differ by 2, then 165 * re-number down by 1 */ 166 if (set_prev+1 < set_next) 167 for (i=loc; i<n; i++) 168 sk_X509_NAME_ENTRY_value(sk,i)->set--; 169 return(ret); 170 } 171 172 int X509_NAME_add_entry_by_OBJ(X509_NAME *name, ASN1_OBJECT *obj, int type, 173 unsigned char *bytes, int len, int loc, int set) 174 { 175 X509_NAME_ENTRY *ne; 176 int ret; 177 ne = X509_NAME_ENTRY_create_by_OBJ(NULL, obj, type, bytes, len); 178 if(!ne) return 0; 179 ret = X509_NAME_add_entry(name, ne, loc, set); 180 X509_NAME_ENTRY_free(ne); 181 return ret; 182 } 183 184 int X509_NAME_add_entry_by_NID(X509_NAME *name, int nid, int type, 185 unsigned char *bytes, int len, int loc, int set) 186 { 187 X509_NAME_ENTRY *ne; 188 int ret; 189 ne = X509_NAME_ENTRY_create_by_NID(NULL, nid, type, bytes, len); 190 if(!ne) return 0; 191 ret = X509_NAME_add_entry(name, ne, loc, set); 192 X509_NAME_ENTRY_free(ne); 193 return ret; 194 } 195 196 int X509_NAME_add_entry_by_txt(X509_NAME *name, const char *field, int type, 197 const unsigned char *bytes, int len, int loc, int set) 198 { 199 X509_NAME_ENTRY *ne; 200 int ret; 201 ne = X509_NAME_ENTRY_create_by_txt(NULL, field, type, bytes, len); 202 if(!ne) return 0; 203 ret = X509_NAME_add_entry(name, ne, loc, set); 204 X509_NAME_ENTRY_free(ne); 205 return ret; 206 } 207 208 /* if set is -1, append to previous set, 0 'a new one', and 1, 209 * prepend to the guy we are about to stomp on. */ 210 int X509_NAME_add_entry(X509_NAME *name, X509_NAME_ENTRY *ne, int loc, 211 int set) 212 { 213 X509_NAME_ENTRY *new_name=NULL; 214 int n,i,inc; 215 STACK_OF(X509_NAME_ENTRY) *sk; 216 217 if (name == NULL) return(0); 218 sk=name->entries; 219 n=sk_X509_NAME_ENTRY_num(sk); 220 if (loc > n) loc=n; 221 else if (loc < 0) loc=n; 222 223 name->modified=1; 224 225 if (set == -1) 226 { 227 if (loc == 0) 228 { 229 set=0; 230 inc=1; 231 } 232 else 233 { 234 set=sk_X509_NAME_ENTRY_value(sk,loc-1)->set; 235 inc=0; 236 } 237 } 238 else /* if (set >= 0) */ 239 { 240 if (loc >= n) 241 { 242 if (loc != 0) 243 set=sk_X509_NAME_ENTRY_value(sk,loc-1)->set+1; 244 else 245 set=0; 246 } 247 else 248 set=sk_X509_NAME_ENTRY_value(sk,loc)->set; 249 inc=(set == 0)?1:0; 250 } 251 252 if ((new_name=X509_NAME_ENTRY_dup(ne)) == NULL) 253 goto err; 254 new_name->set=set; 255 if (!sk_X509_NAME_ENTRY_insert(sk,new_name,loc)) 256 { 257 OPENSSL_PUT_ERROR(X509, ERR_R_MALLOC_FAILURE); 258 goto err; 259 } 260 if (inc) 261 { 262 n=sk_X509_NAME_ENTRY_num(sk); 263 for (i=loc+1; i<n; i++) 264 sk_X509_NAME_ENTRY_value(sk,i-1)->set+=1; 265 } 266 return(1); 267 err: 268 if (new_name != NULL) 269 X509_NAME_ENTRY_free(new_name); 270 return(0); 271 } 272 273 X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_txt(X509_NAME_ENTRY **ne, 274 const char *field, int type, const unsigned char *bytes, int len) 275 { 276 ASN1_OBJECT *obj; 277 X509_NAME_ENTRY *nentry; 278 279 obj=OBJ_txt2obj(field, 0); 280 if (obj == NULL) 281 { 282 OPENSSL_PUT_ERROR(X509, X509_R_INVALID_FIELD_NAME); 283 ERR_add_error_data(2, "name=", field); 284 return(NULL); 285 } 286 nentry = X509_NAME_ENTRY_create_by_OBJ(ne,obj,type,bytes,len); 287 ASN1_OBJECT_free(obj); 288 return nentry; 289 } 290 291 X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_NID(X509_NAME_ENTRY **ne, int nid, 292 int type, unsigned char *bytes, int len) 293 { 294 const ASN1_OBJECT *obj = OBJ_nid2obj(nid); 295 if (obj == NULL) 296 { 297 OPENSSL_PUT_ERROR(X509, X509_R_UNKNOWN_NID); 298 return NULL; 299 } 300 return X509_NAME_ENTRY_create_by_OBJ(ne,obj,type,bytes,len); 301 } 302 303 X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_OBJ(X509_NAME_ENTRY **ne, 304 const ASN1_OBJECT *obj, int type, const unsigned char *bytes, int len) 305 { 306 X509_NAME_ENTRY *ret; 307 308 if ((ne == NULL) || (*ne == NULL)) 309 { 310 if ((ret=X509_NAME_ENTRY_new()) == NULL) 311 return(NULL); 312 } 313 else 314 ret= *ne; 315 316 if (!X509_NAME_ENTRY_set_object(ret,obj)) 317 goto err; 318 if (!X509_NAME_ENTRY_set_data(ret,type,bytes,len)) 319 goto err; 320 321 if ((ne != NULL) && (*ne == NULL)) *ne=ret; 322 return(ret); 323 err: 324 if ((ne == NULL) || (ret != *ne)) 325 X509_NAME_ENTRY_free(ret); 326 return(NULL); 327 } 328 329 int X509_NAME_ENTRY_set_object(X509_NAME_ENTRY *ne, const ASN1_OBJECT *obj) 330 { 331 if ((ne == NULL) || (obj == NULL)) 332 { 333 OPENSSL_PUT_ERROR(X509, ERR_R_PASSED_NULL_PARAMETER); 334 return(0); 335 } 336 ASN1_OBJECT_free(ne->object); 337 ne->object=OBJ_dup(obj); 338 return((ne->object == NULL)?0:1); 339 } 340 341 int X509_NAME_ENTRY_set_data(X509_NAME_ENTRY *ne, int type, 342 const unsigned char *bytes, int len) 343 { 344 int i; 345 346 if ((ne == NULL) || ((bytes == NULL) && (len != 0))) return(0); 347 if((type > 0) && (type & MBSTRING_FLAG)) 348 return ASN1_STRING_set_by_NID(&ne->value, bytes, 349 len, type, 350 OBJ_obj2nid(ne->object)) ? 1 : 0; 351 if (len < 0) len=strlen((const char *)bytes); 352 i=ASN1_STRING_set(ne->value,bytes,len); 353 if (!i) return(0); 354 if (type != V_ASN1_UNDEF) 355 { 356 if (type == V_ASN1_APP_CHOOSE) 357 ne->value->type=ASN1_PRINTABLE_type(bytes,len); 358 else 359 ne->value->type=type; 360 } 361 return(1); 362 } 363 364 ASN1_OBJECT *X509_NAME_ENTRY_get_object(X509_NAME_ENTRY *ne) 365 { 366 if (ne == NULL) return(NULL); 367 return(ne->object); 368 } 369 370 ASN1_STRING *X509_NAME_ENTRY_get_data(X509_NAME_ENTRY *ne) 371 { 372 if (ne == NULL) return(NULL); 373 return(ne->value); 374 } 375 376
