crypto/x509/x509_obj.c

   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 char *X509_NAME_oneline(X509_NAME *a, char *buf, int len)
  67         {
  68         X509_NAME_ENTRY *ne;
  69 int i;
  70         int n,lold,l,l1,l2,num,j,type;
  71         const char *s;
  72         char *p;
  73         unsigned char *q;
  74         BUF_MEM *b=NULL;
  75         static char hex[17]="0123456789ABCDEF";
  76         int gs_doit[4];
  77         char tmp_buf[80];
  78 #ifdef CHARSET_EBCDIC
  79         char ebcdic_buf[1024];
  80 #endif
  81
  82         if (buf == NULL)
  83                 {
  84                 if ((b=BUF_MEM_new()) == NULL) goto err;
  85                 if (!BUF_MEM_grow(b,200)) goto err;
  86                 b->data[0]='\0';
  87                 len=200;
  88                 }
  89         if (a == NULL)
  90             {
  91             if(b)
  92                 {
  93                 buf=b->data;
  94                 Free(b);
  95                 }
  96             strncpy(buf,"NO X509_NAME",len);
  97             return buf;
  98             }
  99
 100         len--; /* space for '\0' */
 101         l=0;
 102         for (i=0; i<sk_X509_NAME_ENTRY_num(a->entries); i++)
 103                 {
 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                         {
 108                         i2t_ASN1_OBJECT(tmp_buf,sizeof(tmp_buf),ne->object);
 109                         s=tmp_buf;
 110                         }
 111                 l1=strlen(s);
 112
 113                 type=ne->value->type;
 114                 num=ne->value->length;
 115                 q=ne->value->data;
 116 #ifdef CHARSET_EBCDIC
 117                 if (type == V_ASN1_GENERALSTRING ||
 118                     type == V_ASN1_VISIBLESTRING ||
 119                     type == V_ASN1_PRINTABLESTRING ||
 120                     type == V_ASN1_TELETEXSTRING ||
 121                     type == V_ASN1_VISIBLESTRING ||
 122                     type == V_ASN1_IA5STRING) {
 123                         ascii2ebcdic(ebcdic_buf, q,
 124                                      (num > sizeof ebcdic_buf)
 125                                      ? sizeof ebcdic_buf : num);
 126                         q=ebcdic_buf;
 127                 }
 128 #endif
 129
 130                 if ((type == V_ASN1_GENERALSTRING) && ((num%4) == 0))
 131                         {
 132                         gs_doit[0]=gs_doit[1]=gs_doit[2]=gs_doit[3]=0;
 133                         for (j=0; j<num; j++)
 134                                 if (q[j] != 0) gs_doit[j&3]=1;
 135
 136                         if (gs_doit[0]|gs_doit[1]|gs_doit[2])
 137                                 gs_doit[0]=gs_doit[1]=gs_doit[2]=gs_doit[3]=1;
 138                         else
 139                                 {
 140                                 gs_doit[0]=gs_doit[1]=gs_doit[2]=0;
 141                                 gs_doit[3]=1;
 142                                 }
 143                         }
 144                 else
 145                         gs_doit[0]=gs_doit[1]=gs_doit[2]=gs_doit[3]=1;
 146
 147                 for (l2=j=0; j<num; j++)
 148                         {
 149                         if (!gs_doit[j&3]) continue;
 150                         l2++;
 151 #ifndef CHARSET_EBCDIC
 152                         if ((q[j] < ' ') || (q[j] > '~')) l2+=3;
 153 #else
 154                         if ((os_toascii[q[j]] < os_toascii[' ']) ||
 155                             (os_toascii[q[j]] > os_toascii['~'])) l2+=3;
 156 #endif
 157                         }
 158
 159                 lold=l;
 160                 l+=1+l1+1+l2;
 161                 if (b != NULL)
 162                         {
 163                         if (!BUF_MEM_grow(b,l+1)) goto err;
 164                         p= &(b->data[lold]);
 165                         }
 166                 else if (l > len)
 167                         {
 168                         break;
 169                         }
 170                 else
 171                         p= &(buf[lold]);
 172                 *(p++)='/';
 173                 memcpy(p,s,(unsigned int)l1); p+=l1;
 174                 *(p++)='=';
 175
 176 #ifndef CHARSET_EBCDIC /* q was assigned above already. */
 177                 q=ne->value->data;
 178 #endif
 179
 180                 for (j=0; j<num; j++)
 181                         {
 182                         if (!gs_doit[j&3]) continue;
 183 #ifndef CHARSET_EBCDIC
 184                         n=q[j];
 185                         if ((n < ' ') || (n > '~'))
 186                                 {
 187                                 *(p++)='\\';
 188                                 *(p++)='x';
 189                                 *(p++)=hex[(n>>4)&0x0f];
 190                                 *(p++)=hex[n&0x0f];
 191                                 }
 192                         else
 193                                 *(p++)=n;
 194 #else
 195                         n=os_toascii[q[j]];
 196                         if ((n < os_toascii[' ']) ||
 197                             (n > os_toascii['~']))
 198                                 {
 199                                 *(p++)='\\';
 200                                 *(p++)='x';
 201                                 *(p++)=hex[(n>>4)&0x0f];
 202                                 *(p++)=hex[n&0x0f];
 203                                 }
 204                         else
 205                                 *(p++)=q[j];
 206 #endif
 207                         }
 208                 *p='\0';
 209                 }
 210         if (b != NULL)
 211                 {
 212                 p=b->data;
 213                 Free(b);
 214                 }
 215         else
 216                 p=buf;
 217         return(p);
 218 err:
 219         X509err(X509_F_X509_NAME_ONELINE,ERR_R_MALLOC_FAILURE);
 220         if (b != NULL) BUF_MEM_free(b);
 221         return(NULL);
 222         }
 223