crypto/x509/x509pack.c

   1 /* crypto/x509/x509pack.c */
   2 /* Copyright (C) 1995-1997 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 "stack.h"
  61 #include "cryptlib.h"
  62 #include "asn1.h"
  63 #include "objects.h"
  64 #include "evp.h"
  65 #include "x509.h"
  66
  67 ASN1_OCTET_STRING *X509v3_pack_string(ex,type,bytes,len)
  68 ASN1_OCTET_STRING **ex;
  69 int type;
  70 unsigned char *bytes;
  71 int len;
  72         {
  73         ASN1_OCTET_STRING *os;
  74         ASN1_STRING str;
  75         unsigned char *p;
  76         int i;
  77
  78         if ((ex == NULL) || (*ex == NULL))
  79                 os=ASN1_OCTET_STRING_new();
  80         else
  81                 os= *ex;
  82
  83         if (len < 0) len=strlen((char *)bytes);
  84         str.length=len;
  85         str.type=type;
  86         str.data=bytes;
  87
  88         /* str now holds the data, we just have to copy it into ->value */
  89
  90         switch (type)
  91                 {
  92         case V_ASN1_BIT_STRING:
  93                 i=i2d_ASN1_BIT_STRING((ASN1_BIT_STRING *)&str,NULL);
  94                 if (!ASN1_STRING_set((ASN1_STRING *)os,NULL,i))
  95                         goto err;
  96                 p=(unsigned char *)os->data;
  97                 i2d_ASN1_BIT_STRING((ASN1_BIT_STRING *)&str,&p);
  98                 break;
  99         case V_ASN1_OCTET_STRING:
 100                 i=i2d_ASN1_OCTET_STRING((ASN1_OCTET_STRING *)&str,NULL);
 101                 if (!ASN1_STRING_set((ASN1_STRING *)os,NULL,i))
 102                         goto err;
 103                 p=(unsigned char *)os->data;
 104                 i2d_ASN1_OCTET_STRING((ASN1_OCTET_STRING *)&str,&p);
 105                 break;
 106         case V_ASN1_IA5STRING:
 107         case V_ASN1_PRINTABLESTRING:
 108         case V_ASN1_T61STRING:
 109                 i=i2d_ASN1_bytes(&str,NULL,type,V_ASN1_UNIVERSAL);
 110                 if (!ASN1_STRING_set((ASN1_STRING *)os,NULL,i))
 111                         goto err;
 112                 p=(unsigned char *)os->data;
 113                 i=i2d_ASN1_bytes(&str,&p,type,V_ASN1_UNIVERSAL);
 114                 break;
 115         default:
 116                 X509err(X509_F_X509V3_PACK_STRING,X509_R_UNKNOWN_STRING_TYPE);
 117                 goto err;
 118                 }
 119         os->length=i;
 120
 121         if ((ex != NULL) && (os != *ex))
 122                 *ex=os;
 123         return(os);
 124 err:
 125         return(NULL);
 126         }
 127
 128 ASN1_STRING *X509v3_unpack_string(ex,type,os)
 129 ASN1_STRING **ex;
 130 int type;
 131 ASN1_OCTET_STRING *os;
 132         {
 133         unsigned char *p;
 134         ASN1_STRING *ret=NULL;
 135
 136         p=os->data;
 137         switch (type)
 138                 {
 139         case V_ASN1_BIT_STRING:
 140                 ret=(ASN1_STRING *)d2i_ASN1_BIT_STRING(
 141                         (ASN1_BIT_STRING **)ex,&p,os->length);
 142                 break;
 143         case V_ASN1_OCTET_STRING:
 144                 ret=(ASN1_STRING *)d2i_ASN1_BIT_STRING(
 145                         (ASN1_BIT_STRING **)ex,&p,os->length);
 146                 break;
 147         case V_ASN1_IA5STRING:
 148         case V_ASN1_PRINTABLESTRING:
 149         case V_ASN1_T61STRING:
 150                 ret=(ASN1_STRING *)d2i_ASN1_PRINTABLE(ex,&p,os->length);
 151                 break;
 152         default:
 153                 X509err(X509_F_X509V3_UNPACK_STRING,X509_R_UNKNOWN_STRING_TYPE);
 154                 }
 155         return(ret);
 156         }
 157