crypto/x509/by_file.c

   1 /* crypto/x509/by_file.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 <time.h>
  61 #include <errno.h>
  62 #include <sys/types.h>
  63 #include <sys/stat.h>
  64
  65 #include "cryptlib.h"
  66 #include "lhash.h"
  67 #include "buffer.h"
  68 #include "x509.h"
  69 #include "pem.h"
  70
  71 #ifndef NOPROTO
  72 static int by_file_ctrl(X509_LOOKUP *ctx,int cmd,char *argc,
  73         long argl,char **ret);
  74 #else
  75 static int by_file_ctrl();
  76 #endif
  77
  78 X509_LOOKUP_METHOD x509_file_lookup=
  79         {
  80         "Load file into cache",
  81         NULL,           /* new */
  82         NULL,           /* free */
  83         NULL,           /* init */
  84         NULL,           /* shutdown */
  85         by_file_ctrl,   /* ctrl */
  86         NULL,           /* get_by_subject */
  87         NULL,           /* get_by_issuer_serial */
  88         NULL,           /* get_by_fingerprint */
  89         NULL,           /* get_by_alias */
  90         };
  91
  92 X509_LOOKUP_METHOD *X509_LOOKUP_file()
  93         {
  94         return(&x509_file_lookup);
  95         }
  96
  97 static int by_file_ctrl(ctx,cmd,argp,argl,ret)
  98 X509_LOOKUP *ctx;
  99 int cmd;
 100 char *argp;
 101 long argl;
 102 char **ret;
 103         {
 104         int ok=0;
 105         char *file;
 106
 107         switch (cmd)
 108                 {
 109         case X509_L_FILE_LOAD:
 110                 if (argl == X509_FILETYPE_DEFAULT)
 111                         {
 112                         ok=X509_load_cert_file(ctx,X509_get_default_cert_file(),
 113                                 X509_FILETYPE_PEM);
 114                         if (!ok)
 115                                 {
 116                                 X509err(X509_F_BY_FILE_CTRL,X509_R_LOADING_DEFAULTS);
 117                                 }
 118                         else
 119                                 {
 120                                 file=(char *)Getenv(X509_get_default_cert_file_env());
 121                                 ok=X509_load_cert_file(ctx,file,
 122                                         X509_FILETYPE_PEM);
 123                                 }
 124                         }
 125                 else
 126                         ok=X509_load_cert_file(ctx,argp,(int)argl);
 127                 break;
 128                 }
 129         return(ok);
 130         }
 131
 132 int X509_load_cert_file(ctx,file,type)
 133 X509_LOOKUP *ctx;
 134 char *file;
 135 int type;
 136         {
 137         int ret=0;
 138         BIO *in=NULL;
 139         int i,count=0;
 140         X509 *x=NULL;
 141
 142         if (file == NULL) return(1);
 143 #ifndef WIN16
 144         in=BIO_new(BIO_s_file());
 145 #else
 146         in=BIO_new(BIO_s_file_internal_w16());
 147 #endif
 148
 149         if ((in == NULL) || (BIO_read_filename(in,file) <= 0))
 150                 {
 151                 X509err(X509_F_X509_LOAD_CERT_FILE,ERR_R_SYS_LIB);
 152                 goto err;
 153                 }
 154
 155         if (type == X509_FILETYPE_PEM)
 156                 {
 157                 for (;;)
 158                         {
 159                         x=PEM_read_bio_X509(in,NULL,NULL);
 160                         if (x == NULL)
 161                                 {
 162                                 if ((ERR_GET_REASON(ERR_peek_error()) ==
 163                                         PEM_R_NO_START_LINE) && (count > 0))
 164                                         {
 165                                         ERR_clear_error();
 166                                         break;
 167                                         }
 168                                 else
 169                                         {
 170                                         X509err(X509_F_X509_LOAD_CERT_FILE,
 171                                                 ERR_R_PEM_LIB);
 172                                         goto err;
 173                                         }
 174                                 }
 175                         i=X509_STORE_add_cert(ctx->store_ctx,x);
 176                         if (!i) goto err;
 177                         count++;
 178                         X509_free(x);
 179                         x=NULL;
 180                         }
 181                 ret=count;
 182                 }
 183         else if (type == X509_FILETYPE_ASN1)
 184                 {
 185                 x=d2i_X509_bio(in,NULL);
 186                 if (x == NULL)
 187                         {
 188                         X509err(X509_F_X509_LOAD_CERT_FILE,ERR_R_ASN1_LIB);
 189                         goto err;
 190                         }
 191                 i=X509_STORE_add_cert(ctx->store_ctx,x);
 192                 if (!i) goto err;
 193                 ret=i;
 194                 }
 195         else
 196                 {
 197                 X509err(X509_F_X509_LOAD_CERT_FILE,X509_R_BAD_X509_FILETYPE);
 198                 goto err;
 199                 }
 200 err:
 201         if (x != NULL) X509_free(x);
 202         if (in != NULL) BIO_free(in);
 203         return(ret);
 204         }
 205