crypto/asn1/x_x509.c

   1 /* crypto/asn1/x_x509.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 "cryptlib.h"
  61 #include "evp.h"
  62 #include "asn1_mac.h"
  63
  64 /*
  65  * ASN1err(ASN1_F_D2I_X509,ASN1_R_LENGTH_MISMATCH);
  66  * ASN1err(ASN1_F_X509_NEW,ASN1_R_BAD_GET_OBJECT);
  67  */
  68
  69 static ASN1_METHOD meth={
  70         (int (*)())  i2d_X509,
  71         (char *(*)())d2i_X509,
  72         (char *(*)())X509_new,
  73         (void (*)()) X509_free};
  74
  75 ASN1_METHOD *X509_asn1_meth()
  76         {
  77         return(&meth);
  78         }
  79
  80 int i2d_X509(a,pp)
  81 X509 *a;
  82 unsigned char **pp;
  83         {
  84         M_ASN1_I2D_vars(a);
  85
  86         M_ASN1_I2D_len(a->cert_info,    i2d_X509_CINF);
  87         M_ASN1_I2D_len(a->sig_alg,      i2d_X509_ALGOR);
  88         M_ASN1_I2D_len(a->signature,    i2d_ASN1_BIT_STRING);
  89
  90         M_ASN1_I2D_seq_total();
  91
  92         M_ASN1_I2D_put(a->cert_info,    i2d_X509_CINF);
  93         M_ASN1_I2D_put(a->sig_alg,      i2d_X509_ALGOR);
  94         M_ASN1_I2D_put(a->signature,    i2d_ASN1_BIT_STRING);
  95
  96         M_ASN1_I2D_finish();
  97         }
  98
  99 X509 *d2i_X509(a,pp,length)
 100 X509 **a;
 101 unsigned char **pp;
 102 long length;
 103         {
 104         M_ASN1_D2I_vars(a,X509 *,X509_new);
 105
 106         M_ASN1_D2I_Init();
 107         M_ASN1_D2I_start_sequence();
 108         M_ASN1_D2I_get(ret->cert_info,d2i_X509_CINF);
 109         M_ASN1_D2I_get(ret->sig_alg,d2i_X509_ALGOR);
 110         M_ASN1_D2I_get(ret->signature,d2i_ASN1_BIT_STRING);
 111 if (ret->name != NULL) Free(ret->name);
 112 ret->name=X509_NAME_oneline(ret->cert_info->subject,NULL,0);
 113
 114         M_ASN1_D2I_Finish(a,X509_free,ASN1_F_D2I_X509);
 115         }
 116
 117 X509 *X509_new()
 118         {
 119         X509 *ret=NULL;
 120
 121         M_ASN1_New_Malloc(ret,X509);
 122         ret->references=1;
 123         ret->valid=0;
 124         ret->name=NULL;
 125         M_ASN1_New(ret->cert_info,X509_CINF_new);
 126         M_ASN1_New(ret->sig_alg,X509_ALGOR_new);
 127         M_ASN1_New(ret->signature,ASN1_BIT_STRING_new);
 128         return(ret);
 129         M_ASN1_New_Error(ASN1_F_X509_NEW);
 130         }
 131
 132 void X509_free(a)
 133 X509 *a;
 134         {
 135         int i;
 136
 137         if (a == NULL) return;
 138
 139         i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_X509);
 140         if (i > 0) return;
 141 #ifdef REF_CHECK
 142         if (i < 0)
 143                 {
 144                 fprintf(stderr,"X509_free, bad reference count\n");
 145                 abort();
 146                 }
 147 #endif
 148
 149         X509_CINF_free(a->cert_info);
 150         X509_ALGOR_free(a->sig_alg);
 151         ASN1_BIT_STRING_free(a->signature);
 152         if (a->name != NULL) Free(a->name);
 153         Free((char *)a);
 154         }
 155