crypto/asn1/x_name.c

   1 /* crypto/asn1/x_name.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 "objects.h"
  62 #include "asn1_mac.h"
  63
  64 /*
  65  * ASN1err(ASN1_F_D2I_X509_NAME,ERR_R_ASN1_LENGTH_MISMATCH);
  66  * ASN1err(ASN1_F_X509_NAME_NEW,ASN1_R_UNKNOWN_ATTRIBUTE_TYPE);
  67  * ASN1err(ASN1_F_D2I_X509_NAME_ENTRY,ERR_R_ASN1_LENGTH_MISMATCH);
  68  * ASN1err(ASN1_F_X509_NAME_ENTRY_NEW,ASN1_R_UNKNOWN_ATTRIBUTE_TYPE);
  69  */
  70
  71 #ifndef NOPROTO
  72 static int i2d_X509_NAME_entries(X509_NAME *a);
  73 #else
  74 static int i2d_X509_NAME_entries();
  75 #endif
  76
  77 int i2d_X509_NAME_ENTRY(X509_NAME_ENTRY *a, unsigned char **pp)
  78         {
  79         M_ASN1_I2D_vars(a);
  80
  81         M_ASN1_I2D_len(a->object,i2d_ASN1_OBJECT);
  82         M_ASN1_I2D_len(a->value,i2d_ASN1_PRINTABLE);
  83
  84         M_ASN1_I2D_seq_total();
  85
  86         M_ASN1_I2D_put(a->object,i2d_ASN1_OBJECT);
  87         M_ASN1_I2D_put(a->value,i2d_ASN1_PRINTABLE);
  88
  89         M_ASN1_I2D_finish();
  90         }
  91
  92 X509_NAME_ENTRY *d2i_X509_NAME_ENTRY(X509_NAME_ENTRY **a, unsigned char **pp,
  93              long length)
  94         {
  95         M_ASN1_D2I_vars(a,X509_NAME_ENTRY *,X509_NAME_ENTRY_new);
  96
  97         M_ASN1_D2I_Init();
  98         M_ASN1_D2I_start_sequence();
  99         M_ASN1_D2I_get(ret->object,d2i_ASN1_OBJECT);
 100         M_ASN1_D2I_get(ret->value,d2i_ASN1_PRINTABLE);
 101         ret->set=0;
 102         M_ASN1_D2I_Finish(a,X509_NAME_ENTRY_free,ASN1_F_D2I_X509_NAME_ENTRY);
 103         }
 104
 105 int i2d_X509_NAME(X509_NAME *a, unsigned char **pp)
 106         {
 107         int ret;
 108
 109         if (a == NULL) return(0);
 110         if (a->modified)
 111                 {
 112                 ret=i2d_X509_NAME_entries(a);
 113                 if (ret < 0) return(ret);
 114                 }
 115
 116         ret=a->bytes->length;
 117         if (pp != NULL)
 118                 {
 119                 memcpy(*pp,a->bytes->data,ret);
 120                 *pp+=ret;
 121                 }
 122         return(ret);
 123         }
 124
 125 static int i2d_X509_NAME_entries(X509_NAME *a)
 126         {
 127         X509_NAME_ENTRY *ne,*fe=NULL;
 128         STACK *sk;
 129         BUF_MEM *buf=NULL;
 130         int set=0,r,ret=0;
 131         int i;
 132         unsigned char *p;
 133         int size=0;
 134
 135         sk=a->entries;
 136         for (i=0; i<sk_num(sk); i++)
 137                 {
 138                 ne=(X509_NAME_ENTRY *)sk_value(sk,i);
 139                 if (fe == NULL)
 140                         {
 141                         fe=ne;
 142                         size=0;
 143                         }
 144
 145                 if (ne->set != set)
 146                         {
 147                         ret+=ASN1_object_size(1,size,V_ASN1_SET);
 148                         fe->size=size;
 149                         fe=ne;
 150                         size=0;
 151                         set=ne->set;
 152                         }
 153                 size+=i2d_X509_NAME_ENTRY(ne,NULL);
 154                 }
 155
 156         ret+=ASN1_object_size(1,size,V_ASN1_SET);
 157         if (fe != NULL)
 158                 fe->size=size;
 159
 160         r=ASN1_object_size(1,ret,V_ASN1_SEQUENCE);
 161
 162         buf=a->bytes;
 163         if (!BUF_MEM_grow(buf,r)) goto err;
 164         p=(unsigned char *)buf->data;
 165
 166         ASN1_put_object(&p,1,ret,V_ASN1_SEQUENCE,V_ASN1_UNIVERSAL);
 167
 168         set= -1;
 169         for (i=0; i<sk_num(sk); i++)
 170                 {
 171                 ne=(X509_NAME_ENTRY *)sk_value(sk,i);
 172                 if (set != ne->set)
 173                         {
 174                         set=ne->set;
 175                         ASN1_put_object(&p,1,ne->size,
 176                                 V_ASN1_SET,V_ASN1_UNIVERSAL);
 177                         }
 178                 i2d_X509_NAME_ENTRY(ne,&p);
 179                 }
 180         a->modified=0;
 181         return(r);
 182 err:
 183         return(-1);
 184         }
 185
 186 X509_NAME *d2i_X509_NAME(X509_NAME **a, unsigned char **pp, long length)
 187         {
 188         int set=0,i;
 189         int idx=0;
 190         unsigned char *orig;
 191         M_ASN1_D2I_vars(a,X509_NAME *,X509_NAME_new);
 192
 193         orig= *pp;
 194         if (sk_num(ret->entries) > 0)
 195                 {
 196                 while (sk_num(ret->entries) > 0)
 197                         X509_NAME_ENTRY_free((X509_NAME_ENTRY *)
 198                                 sk_pop(ret->entries));
 199                 }
 200
 201         M_ASN1_D2I_Init();
 202         M_ASN1_D2I_start_sequence();
 203         for (;;)
 204                 {
 205                 if (M_ASN1_D2I_end_sequence()) break;
 206                 M_ASN1_D2I_get_set(ret->entries,d2i_X509_NAME_ENTRY,
 207                         X509_NAME_ENTRY_free);
 208                 for (; idx < sk_num(ret->entries); idx++)
 209                         {
 210                         ((X509_NAME_ENTRY *)sk_value(ret->entries,idx))->set=
 211                                 set;
 212                         }
 213                 set++;
 214                 }
 215
 216         i=(int)(c.p-orig);
 217         if (!BUF_MEM_grow(ret->bytes,i)) goto err;
 218         memcpy(ret->bytes->data,orig,i);
 219         ret->bytes->length=i;
 220         ret->modified=0;
 221
 222         M_ASN1_D2I_Finish(a,X509_NAME_free,ASN1_F_D2I_X509_NAME);
 223         }
 224
 225 X509_NAME *X509_NAME_new(void)
 226         {
 227         X509_NAME *ret=NULL;
 228         ASN1_CTX c;
 229
 230         M_ASN1_New_Malloc(ret,X509_NAME);
 231         if ((ret->entries=sk_new(NULL)) == NULL)
 232                 { c.line=__LINE__; goto err2; }
 233         M_ASN1_New(ret->bytes,BUF_MEM_new);
 234         ret->modified=1;
 235         return(ret);
 236         M_ASN1_New_Error(ASN1_F_X509_NAME_NEW);
 237         }
 238
 239 X509_NAME_ENTRY *X509_NAME_ENTRY_new(void)
 240         {
 241         X509_NAME_ENTRY *ret=NULL;
 242         ASN1_CTX c;
 243
 244         M_ASN1_New_Malloc(ret,X509_NAME_ENTRY);
 245 /*      M_ASN1_New(ret->object,ASN1_OBJECT_new);*/
 246         ret->object=NULL;
 247         ret->set=0;
 248         M_ASN1_New(ret->value,ASN1_STRING_new);
 249         return(ret);
 250         M_ASN1_New_Error(ASN1_F_X509_NAME_ENTRY_NEW);
 251         }
 252
 253 void X509_NAME_free(X509_NAME *a)
 254         {
 255         if(a == NULL)
 256             return;
 257
 258         BUF_MEM_free(a->bytes);
 259         sk_pop_free(a->entries,X509_NAME_ENTRY_free);
 260         Free((char *)a);
 261         }
 262
 263 void X509_NAME_ENTRY_free(X509_NAME_ENTRY *a)
 264         {
 265         if (a == NULL) return;
 266         ASN1_OBJECT_free(a->object);
 267         ASN1_BIT_STRING_free(a->value);
 268         Free((char *)a);
 269         }
 270
 271 int X509_NAME_set(X509_NAME **xn, X509_NAME *name)
 272         {
 273         X509_NAME *in;
 274
 275         if (*xn == NULL) return(0);
 276
 277         if (*xn != name)
 278                 {
 279                 in=X509_NAME_dup(name);
 280                 if (in != NULL)
 281                         {
 282                         X509_NAME_free(*xn);
 283                         *xn=in;
 284                         }
 285                 }
 286         return(*xn != NULL);
 287         }
 288