crypto/openssl-0.9/apps/crl2p7.c

   1 /* apps/crl2p7.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 /* This was written by Gordon Chaffee <chaffee@plateau.cs.berkeley.edu>
  60  * and donated 'to the cause' along with lots and lots of other fixes to
  61  * the library. */
  62
  63 #include <stdio.h>
  64 #include <string.h>
  65 #include <sys/types.h>
  66 #include <sys/stat.h>
  67 #include "apps.h"
  68 #include <openssl/err.h>
  69 #include <openssl/evp.h>
  70 #include <openssl/x509.h>
  71 #include <openssl/pkcs7.h>
  72 #include <openssl/pem.h>
  73 #include <openssl/objects.h>
  74
  75 static int add_certs_from_file(STACK_OF(X509) *stack, char *certfile);
  76 #undef PROG
  77 #define PROG    crl2pkcs7_main
  78
  79 /* -inform arg  - input format - default PEM (DER or PEM)
  80  * -outform arg - output format - default PEM
  81  * -in arg      - input file - default stdin
  82  * -out arg     - output file - default stdout
  83  */
  84
  85 int MAIN(int, char **);
  86
  87 int MAIN(int argc, char **argv)
  88         {
  89         int i,badops=0;
  90         BIO *in=NULL,*out=NULL;
  91         int informat,outformat;
  92         char *infile,*outfile,*prog,*certfile;
  93         PKCS7 *p7 = NULL;
  94         PKCS7_SIGNED *p7s = NULL;
  95         X509_CRL *crl=NULL;
  96         STACK *certflst=NULL;
  97         STACK_OF(X509_CRL) *crl_stack=NULL;
  98         STACK_OF(X509) *cert_stack=NULL;
  99         int ret=1,nocrl=0;
 100
 101         apps_startup();
 102
 103         if (bio_err == NULL)
 104                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 105                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 106
 107         infile=NULL;
 108         outfile=NULL;
 109         informat=FORMAT_PEM;
 110         outformat=FORMAT_PEM;
 111
 112         prog=argv[0];
 113         argc--;
 114         argv++;
 115         while (argc >= 1)
 116                 {
 117                 if      (strcmp(*argv,"-inform") == 0)
 118                         {
 119                         if (--argc < 1) goto bad;
 120                         informat=str2fmt(*(++argv));
 121                         }
 122                 else if (strcmp(*argv,"-outform") == 0)
 123                         {
 124                         if (--argc < 1) goto bad;
 125                         outformat=str2fmt(*(++argv));
 126                         }
 127                 else if (strcmp(*argv,"-in") == 0)
 128                         {
 129                         if (--argc < 1) goto bad;
 130                         infile= *(++argv);
 131                         }
 132                 else if (strcmp(*argv,"-nocrl") == 0)
 133                         {
 134                         nocrl=1;
 135                         }
 136                 else if (strcmp(*argv,"-out") == 0)
 137                         {
 138                         if (--argc < 1) goto bad;
 139                         outfile= *(++argv);
 140                         }
 141                 else if (strcmp(*argv,"-certfile") == 0)
 142                         {
 143                         if (--argc < 1) goto bad;
 144                         if(!certflst) certflst = sk_new_null();
 145                         sk_push(certflst,*(++argv));
 146                         }
 147                 else
 148                         {
 149                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 150                         badops=1;
 151                         break;
 152                         }
 153                 argc--;
 154                 argv++;
 155                 }
 156
 157         if (badops)
 158                 {
 159 bad:
 160                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
 161                 BIO_printf(bio_err,"where options are\n");
 162                 BIO_printf(bio_err," -inform arg    input format - DER or PEM\n");
 163                 BIO_printf(bio_err," -outform arg   output format - DER or PEM\n");
 164                 BIO_printf(bio_err," -in arg        input file\n");
 165                 BIO_printf(bio_err," -out arg       output file\n");
 166                 BIO_printf(bio_err," -certfile arg  certificates file of chain to a trusted CA\n");
 167                 BIO_printf(bio_err,"                (can be used more than once)\n");
 168                 BIO_printf(bio_err," -nocrl         no crl to load, just certs from '-certfile'\n");
 169                 ret = 1;
 170                 goto end;
 171                 }
 172
 173         ERR_load_crypto_strings();
 174
 175         in=BIO_new(BIO_s_file());
 176         out=BIO_new(BIO_s_file());
 177         if ((in == NULL) || (out == NULL))
 178                 {
 179                 ERR_print_errors(bio_err);
 180                 goto end;
 181                 }
 182
 183         if (!nocrl)
 184                 {
 185                 if (infile == NULL)
 186                         BIO_set_fp(in,stdin,BIO_NOCLOSE);
 187                 else
 188                         {
 189                         if (BIO_read_filename(in,infile) <= 0)
 190                                 {
 191                                 perror(infile);
 192                                 goto end;
 193                                 }
 194                         }
 195
 196                 if      (informat == FORMAT_ASN1)
 197                         crl=d2i_X509_CRL_bio(in,NULL);
 198                 else if (informat == FORMAT_PEM)
 199                         crl=PEM_read_bio_X509_CRL(in,NULL,NULL,NULL);
 200                 else    {
 201                         BIO_printf(bio_err,"bad input format specified for input crl\n");
 202                         goto end;
 203                         }
 204                 if (crl == NULL)
 205                         {
 206                         BIO_printf(bio_err,"unable to load CRL\n");
 207                         ERR_print_errors(bio_err);
 208                         goto end;
 209                         }
 210                 }
 211
 212         if ((p7=PKCS7_new()) == NULL) goto end;
 213         if ((p7s=PKCS7_SIGNED_new()) == NULL) goto end;
 214         p7->type=OBJ_nid2obj(NID_pkcs7_signed);
 215         p7->d.sign=p7s;
 216         p7s->contents->type=OBJ_nid2obj(NID_pkcs7_data);
 217
 218         if (!ASN1_INTEGER_set(p7s->version,1)) goto end;
 219         if ((crl_stack=sk_X509_CRL_new_null()) == NULL) goto end;
 220         p7s->crl=crl_stack;
 221         if (crl != NULL)
 222                 {
 223                 sk_X509_CRL_push(crl_stack,crl);
 224                 crl=NULL; /* now part of p7 for OPENSSL_freeing */
 225                 }
 226
 227         if ((cert_stack=sk_X509_new_null()) == NULL) goto end;
 228         p7s->cert=cert_stack;
 229
 230         if(certflst) for(i = 0; i < sk_num(certflst); i++) {
 231                 certfile = sk_value(certflst, i);
 232                 if (add_certs_from_file(cert_stack,certfile) < 0)
 233                         {
 234                         BIO_printf(bio_err, "error loading certificates\n");
 235                         ERR_print_errors(bio_err);
 236                         goto end;
 237                         }
 238         }
 239
 240         sk_free(certflst);
 241
 242         if (outfile == NULL)
 243                 {
 244                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
 245 #ifdef OPENSSL_SYS_VMS
 246                 {
 247                 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 248                 out = BIO_push(tmpbio, out);
 249                 }
 250 #endif
 251                 }
 252         else
 253                 {
 254                 if (BIO_write_filename(out,outfile) <= 0)
 255                         {
 256                         perror(outfile);
 257                         goto end;
 258                         }
 259                 }
 260
 261         if      (outformat == FORMAT_ASN1)
 262                 i=i2d_PKCS7_bio(out,p7);
 263         else if (outformat == FORMAT_PEM)
 264                 i=PEM_write_bio_PKCS7(out,p7);
 265         else    {
 266                 BIO_printf(bio_err,"bad output format specified for outfile\n");
 267                 goto end;
 268                 }
 269         if (!i)
 270                 {
 271                 BIO_printf(bio_err,"unable to write pkcs7 object\n");
 272                 ERR_print_errors(bio_err);
 273                 goto end;
 274                 }
 275         ret=0;
 276 end:
 277         if (in != NULL) BIO_free(in);
 278         if (out != NULL) BIO_free_all(out);
 279         if (p7 != NULL) PKCS7_free(p7);
 280         if (crl != NULL) X509_CRL_free(crl);
 281
 282         apps_shutdown();
 283         OPENSSL_EXIT(ret);
 284         }
 285
 286 /*
 287  *----------------------------------------------------------------------
 288  * int add_certs_from_file
 289  *
 290  *      Read a list of certificates to be checked from a file.
 291  *
 292  * Results:
 293  *      number of certs added if successful, -1 if not.
 294  *----------------------------------------------------------------------
 295  */
 296 static int add_certs_from_file(STACK_OF(X509) *stack, char *certfile)
 297         {
 298         struct stat st;
 299         BIO *in=NULL;
 300         int count=0;
 301         int ret= -1;
 302         STACK_OF(X509_INFO) *sk=NULL;
 303         X509_INFO *xi;
 304
 305         if ((stat(certfile,&st) != 0))
 306                 {
 307                 BIO_printf(bio_err,"unable to load the file, %s\n",certfile);
 308                 goto end;
 309                 }
 310
 311         in=BIO_new(BIO_s_file());
 312         if ((in == NULL) || (BIO_read_filename(in,certfile) <= 0))
 313                 {
 314                 BIO_printf(bio_err,"error opening the file, %s\n",certfile);
 315                 goto end;
 316                 }
 317
 318         /* This loads from a file, a stack of x509/crl/pkey sets */
 319         sk=PEM_X509_INFO_read_bio(in,NULL,NULL,NULL);
 320         if (sk == NULL) {
 321                 BIO_printf(bio_err,"error reading the file, %s\n",certfile);
 322                 goto end;
 323         }
 324
 325         /* scan over it and pull out the CRL's */
 326         while (sk_X509_INFO_num(sk))
 327                 {
 328                 xi=sk_X509_INFO_shift(sk);
 329                 if (xi->x509 != NULL)
 330                         {
 331                         sk_X509_push(stack,xi->x509);
 332                         xi->x509=NULL;
 333                         count++;
 334                         }
 335                 X509_INFO_free(xi);
 336                 }
 337
 338         ret=count;
 339 end:
 340         /* never need to OPENSSL_free x */
 341         if (in != NULL) BIO_free(in);
 342         if (sk != NULL) sk_X509_INFO_free(sk);
 343         return(ret);
 344         }
 345