apps/x509.c

   1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   2  * All rights reserved.
   3  *
   4  * This package is an SSL implementation written
   5  * by Eric Young (eay@cryptsoft.com).
   6  * The implementation was written so as to conform with Netscapes SSL.
   7  *
   8  * This library is free for commercial and non-commercial use as long as
   9  * the following conditions are aheared to.  The following conditions
  10  * apply to all code found in this distribution, be it the RC4, RSA,
  11  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  12  * included with this distribution is covered by the same copyright terms
  13  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  14  *
  15  * Copyright remains Eric Young's, and as such any Copyright notices in
  16  * the code are not to be removed.
  17  * If this package is used in a product, Eric Young should be given attribution
  18  * as the author of the parts of the library used.
  19  * This can be in the form of a textual message at program startup or
  20  * in documentation (online or textual) provided with the package.
  21  *
  22  * Redistribution and use in source and binary forms, with or without
  23  * modification, are permitted provided that the following conditions
  24  * are met:
  25  * 1. Redistributions of source code must retain the copyright
  26  *    notice, this list of conditions and the following disclaimer.
  27  * 2. Redistributions in binary form must reproduce the above copyright
  28  *    notice, this list of conditions and the following disclaimer in the
  29  *    documentation and/or other materials provided with the distribution.
  30  * 3. All advertising materials mentioning features or use of this software
  31  *    must display the following acknowledgement:
  32  *    "This product includes cryptographic software written by
  33  *     Eric Young (eay@cryptsoft.com)"
  34  *    The word 'cryptographic' can be left out if the rouines from the library
  35  *    being used are not cryptographic related :-).
  36  * 4. If you include any Windows specific code (or a derivative thereof) from
  37  *    the apps directory (application code) you must include an acknowledgement:
  38  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  39  *
  40  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  41  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  43  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  44  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  45  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  46  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  48  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  49  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  50  * SUCH DAMAGE.
  51  *
  52  * The licence and distribution terms for any publically available version or
  53  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  54  * copied and put under another distribution licence
  55  * [including the GNU Public Licence.]
  56  */
  57
  58 #include <assert.h>
  59 #include <stdio.h>
  60 #include <stdlib.h>
  61 #include <string.h>
  62 #include "apps.h"
  63 #include <openssl/bio.h>
  64 #include <openssl/asn1.h>
  65 #include <openssl/err.h>
  66 #include <openssl/bn.h>
  67 #include <openssl/evp.h>
  68 #include <openssl/x509.h>
  69 #include <openssl/x509v3.h>
  70 #include <openssl/objects.h>
  71 #include <openssl/pem.h>
  72 #ifndef OPENSSL_NO_RSA
  73 # include <openssl/rsa.h>
  74 #endif
  75 #ifndef OPENSSL_NO_DSA
  76 # include <openssl/dsa.h>
  77 #endif
  78
  79 #undef POSTFIX
  80 #define POSTFIX ".srl"
  81 #define DEF_DAYS        30
  82
  83 static int callb(int ok, X509_STORE_CTX *ctx);
  84 static int sign(X509 *x, EVP_PKEY *pkey, int days, int clrext,
  85                 const EVP_MD *digest, CONF *conf, char *section);
  86 static int x509_certify(X509_STORE *ctx, char *CAfile, const EVP_MD *digest,
  87                         X509 *x, X509 *xca, EVP_PKEY *pkey,
  88                         STACK_OF(OPENSSL_STRING) *sigopts, char *serial,
  89                         int create, int days, int clrext, CONF *conf,
  90                         char *section, ASN1_INTEGER *sno, int reqfile);
  91 static int purpose_print(BIO *bio, X509 *cert, X509_PURPOSE *pt);
  92
  93 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
  94 static int force_version = 2;
  95 #endif
  96
  97 typedef enum OPTION_choice {
  98     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
  99     OPT_INFORM, OPT_OUTFORM, OPT_KEYFORM, OPT_REQ, OPT_CAFORM,
 100     OPT_CAKEYFORM, OPT_SIGOPT, OPT_DAYS, OPT_PASSIN, OPT_EXTFILE,
 101     OPT_EXTENSIONS, OPT_IN, OPT_OUT, OPT_SIGNKEY, OPT_CA,
 102     OPT_CAKEY, OPT_CASERIAL, OPT_SET_SERIAL, OPT_FORCE_PUBKEY,
 103     OPT_ADDTRUST, OPT_ADDREJECT, OPT_SETALIAS, OPT_CERTOPT, OPT_NAMEOPT,
 104     OPT_C, OPT_EMAIL, OPT_OCSP_URI, OPT_SERIAL, OPT_NEXT_SERIAL,
 105     OPT_MODULUS, OPT_PUBKEY, OPT_X509TOREQ, OPT_TEXT, OPT_HASH,
 106     OPT_ISSUER_HASH, OPT_SUBJECT, OPT_ISSUER, OPT_FINGERPRINT, OPT_DATES,
 107     OPT_PURPOSE, OPT_STARTDATE, OPT_ENDDATE, OPT_CHECKEND, OPT_CHECKHOST,
 108     OPT_CHECKEMAIL, OPT_CHECKIP, OPT_NOOUT, OPT_TRUSTOUT, OPT_CLRTRUST,
 109     OPT_CLRREJECT, OPT_ALIAS, OPT_CACREATESERIAL, OPT_CLREXT, OPT_OCSPID,
 110     OPT_SUBJECT_HASH_OLD,
 111     OPT_ISSUER_HASH_OLD,
 112     OPT_FORCE_VERSION,
 113     OPT_BADSIG, OPT_MD, OPT_ENGINE, OPT_NOCERT
 114 } OPTION_CHOICE;
 115
 116 OPTIONS x509_options[] = {
 117     {"help", OPT_HELP, '-', "Display this summary"},
 118     {"inform", OPT_INFORM, 'f',
 119      "Input format - default PEM (one of DER, NET or PEM)"},
 120     {"in", OPT_IN, '<', "Input file - default stdin"},
 121     {"outform", OPT_OUTFORM, 'f',
 122      "Output format - default PEM (one of DER, NET or PEM)"},
 123     {"out", OPT_OUT, '>', "Output file - default stdout"},
 124     {"keyform", OPT_KEYFORM, 'F', "Private key format - default PEM"},
 125     {"passin", OPT_PASSIN, 's', "Private key password source"},
 126     {"serial", OPT_SERIAL, '-', "Print serial number value"},
 127     {"subject_hash", OPT_HASH, '-', "Print subject hash value"},
 128     {"issuer_hash", OPT_ISSUER_HASH, '-', "Print issuer hash value"},
 129     {"hash", OPT_HASH, '-', "Synonym for -subject_hash"},
 130     {"subject", OPT_SUBJECT, '-', "Print subject DN"},
 131     {"issuer", OPT_ISSUER, '-', "Print issuer DN"},
 132     {"email", OPT_EMAIL, '-', "Print email address(es)"},
 133     {"startdate", OPT_STARTDATE, '-', "Set notBefore field"},
 134     {"enddate", OPT_ENDDATE, '-', "Set notAfter field"},
 135     {"purpose", OPT_PURPOSE, '-', "Print out certificate purposes"},
 136     {"dates", OPT_DATES, '-', "Both Before and After dates"},
 137     {"modulus", OPT_MODULUS, '-', "Print the RSA key modulus"},
 138     {"pubkey", OPT_PUBKEY, '-', "Output the public key"},
 139     {"fingerprint", OPT_FINGERPRINT, '-',
 140      "Print the certificate fingerprint"},
 141     {"alias", OPT_ALIAS, '-', "Output certificate alias"},
 142     {"noout", OPT_NOOUT, '-', "No output, just status"},
 143     {"nocert", OPT_NOCERT, '-', "No certificate output"},
 144     {"ocspid", OPT_OCSPID, '-',
 145      "Print OCSP hash values for the subject name and public key"},
 146     {"ocsp_uri", OPT_OCSP_URI, '-', "Print OCSP Responder URL(s)"},
 147     {"trustout", OPT_TRUSTOUT, '-', "Output a trusted certificate"},
 148     {"clrtrust", OPT_CLRTRUST, '-', "Clear all trusted purposes"},
 149     {"clrext", OPT_CLREXT, '-', "Clear all rejected purposes"},
 150     {"addtrust", OPT_ADDTRUST, 's', "Trust certificate for a given purpose"},
 151     {"addreject", OPT_ADDREJECT, 's',
 152      "Reject certificate for a given purpose"},
 153     {"setalias", OPT_SETALIAS, 's', "Set certificate alias"},
 154     {"days", OPT_DAYS, 'n',
 155      "How long till expiry of a signed certificate - def 30 days"},
 156     {"checkend", OPT_CHECKEND, 'p',
 157      "Check whether the cert expires in the next arg seconds"},
 158     {OPT_MORE_STR, 1, 1, "Exit 1 if so, 0 if not"},
 159     {"signkey", OPT_SIGNKEY, '<', "Self sign cert with arg"},
 160     {"x509toreq", OPT_X509TOREQ, '-',
 161      "Output a certification request object"},
 162     {"req", OPT_REQ, '-', "Input is a certificate request, sign and output"},
 163     {"CA", OPT_CA, '<', "Set the CA certificate, must be PEM format"},
 164     {"CAkey", OPT_CAKEY, '<',
 165      "The CA key, must be PEM format; if not in CAfile"},
 166     {"CAcreateserial", OPT_CACREATESERIAL, '-',
 167      "Create serial number file if it does not exist"},
 168     {"CAserial", OPT_CASERIAL, 's', "Serial file"},
 169     {"set_serial", OPT_SET_SERIAL, 's', "Serial number to use"},
 170     {"text", OPT_TEXT, '-', "Print the certificate in text form"},
 171     {"C", OPT_C, '-', "Print out C code forms"},
 172     {"extfile", OPT_EXTFILE, '<', "File with X509V3 extensions to add"},
 173     {"extensions", OPT_EXTENSIONS, 's', "Section from config file to use"},
 174     {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
 175     {"certopt", OPT_CERTOPT, 's', "Various certificate text options"},
 176     {"checkhost", OPT_CHECKHOST, 's', "Check certificate matches host"},
 177     {"checkemail", OPT_CHECKEMAIL, 's', "Check certificate matches email"},
 178     {"checkip", OPT_CHECKIP, 's', "Check certificate matches ipaddr"},
 179     {"CAform", OPT_CAFORM, 'F', "CA format - default PEM"},
 180     {"CAkeyform", OPT_CAKEYFORM, 'F', "CA key format - default PEM"},
 181     {"sigopt", OPT_SIGOPT, 's'},
 182     {"force_pubkey", OPT_FORCE_PUBKEY, '<'},
 183     {"next_serial", OPT_NEXT_SERIAL, '-'},
 184     {"clrreject", OPT_CLRREJECT, '-'},
 185     {"badsig", OPT_BADSIG, '-'},
 186     {"", OPT_MD, '-', "Any supported digest"},
 187 #ifndef OPENSSL_NO_MD5
 188     {"subject_hash_old", OPT_SUBJECT_HASH_OLD, '-',
 189      "Print old-style (MD5) issuer hash value"},
 190     {"issuer_hash_old", OPT_ISSUER_HASH_OLD, '-',
 191      "Print old-style (MD5) subject hash value"},
 192 #endif
 193 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
 194     {"force_version", OPT_FORCE_VERSION, 'p'},
 195 #endif
 196 #ifndef OPENSSL_NO_ENGINE
 197     {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
 198 #endif
 199     {NULL}
 200 };
 201
 202 int x509_main(int argc, char **argv)
 203 {
 204     ASN1_INTEGER *sno = NULL;
 205     ASN1_OBJECT *objtmp;
 206     BIO *out = NULL;
 207     CONF *extconf = NULL;
 208     EVP_PKEY *Upkey = NULL, *CApkey = NULL, *fkey = NULL;
 209     STACK_OF(ASN1_OBJECT) *trust = NULL, *reject = NULL;
 210     STACK_OF(OPENSSL_STRING) *sigopts = NULL;
 211     X509 *x = NULL, *xca = NULL;
 212     X509_REQ *req = NULL, *rq = NULL;
 213     X509_STORE *ctx = NULL;
 214     const EVP_MD *digest = NULL;
 215     char *CAkeyfile = NULL, *CAserial = NULL, *fkeyfile = NULL, *alias = NULL;
 216     char *checkhost = NULL, *checkemail = NULL, *checkip = NULL;
 217     char *extsect = NULL, *extfile = NULL, *passin = NULL, *passinarg = NULL;
 218     char *infile = NULL, *outfile = NULL, *keyfile = NULL, *CAfile = NULL;
 219     char buf[256], *prog;
 220     int x509req = 0, days = DEF_DAYS, modulus = 0, pubkey = 0, pprint = 0;
 221     int C = 0, CAformat = FORMAT_PEM, CAkeyformat = FORMAT_PEM;
 222     int fingerprint = 0, reqfile = 0, need_rand = 0, checkend = 0;
 223     int informat = FORMAT_PEM, outformat = FORMAT_PEM, keyformat = FORMAT_PEM;
 224     int next_serial = 0, subject_hash = 0, issuer_hash = 0, ocspid = 0;
 225     int noout = 0, sign_flag = 0, CA_flag = 0, CA_createserial = 0, email = 0;
 226     int ocsp_uri = 0, trustout = 0, clrtrust = 0, clrreject = 0, aliasout = 0;
 227     int ret = 1, i, num = 0, badsig = 0, clrext = 0, nocert = 0;
 228     int text = 0, serial = 0, subject = 0, issuer = 0, startdate = 0;
 229     int checkoffset = 0, enddate = 0;
 230     unsigned long nmflag = 0, certflag = 0;
 231     OPTION_CHOICE o;
 232     ENGINE *e = NULL;
 233 #ifndef OPENSSL_NO_MD5
 234     int subject_hash_old = 0, issuer_hash_old = 0;
 235 #endif
 236
 237     ctx = X509_STORE_new();
 238     if (ctx == NULL)
 239         goto end;
 240     X509_STORE_set_verify_cb(ctx, callb);
 241
 242     prog = opt_init(argc, argv, x509_options);
 243     while ((o = opt_next()) != OPT_EOF) {
 244         switch (o) {
 245         case OPT_EOF:
 246         case OPT_ERR:
 247  opthelp:
 248             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 249             goto end;
 250         case OPT_HELP:
 251             opt_help(x509_options);
 252             ret = 0;
 253             goto end;
 254         case OPT_INFORM:
 255             if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
 256                 goto opthelp;
 257             break;
 258         case OPT_IN:
 259             infile = opt_arg();
 260             break;
 261         case OPT_OUTFORM:
 262             if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
 263                 goto opthelp;
 264             break;
 265         case OPT_KEYFORM:
 266             if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &keyformat))
 267                 goto opthelp;
 268             break;
 269         case OPT_CAFORM:
 270             if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &CAformat))
 271                 goto opthelp;
 272             break;
 273         case OPT_CAKEYFORM:
 274             if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &CAkeyformat))
 275                 goto opthelp;
 276             break;
 277         case OPT_OUT:
 278             outfile = opt_arg();
 279             break;
 280         case OPT_REQ:
 281             reqfile = need_rand = 1;
 282             break;
 283
 284         case OPT_SIGOPT:
 285             if (!sigopts)
 286                 sigopts = sk_OPENSSL_STRING_new_null();
 287             if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg()))
 288                 goto opthelp;
 289             break;
 290         case OPT_FORCE_VERSION:
 291 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
 292             force_version = atoi(opt_arg()) - 1;
 293 #endif
 294             break;
 295         case OPT_DAYS:
 296             days = atoi(opt_arg());
 297             break;
 298         case OPT_PASSIN:
 299             passinarg = opt_arg();
 300             break;
 301         case OPT_EXTFILE:
 302             extfile = opt_arg();
 303             break;
 304         case OPT_EXTENSIONS:
 305             extsect = opt_arg();
 306             break;
 307         case OPT_SIGNKEY:
 308             keyfile = opt_arg();
 309             sign_flag = ++num;
 310             need_rand = 1;
 311             break;
 312         case OPT_CA:
 313             CAfile = opt_arg();
 314             CA_flag = ++num;
 315             need_rand = 1;
 316             break;
 317         case OPT_CAKEY:
 318             CAkeyfile = opt_arg();
 319             break;
 320         case OPT_CASERIAL:
 321             CAserial = opt_arg();
 322             break;
 323         case OPT_SET_SERIAL:
 324             if ((sno = s2i_ASN1_INTEGER(NULL, opt_arg())) == NULL)
 325                 goto opthelp;
 326             break;
 327         case OPT_FORCE_PUBKEY:
 328             fkeyfile = opt_arg();
 329             break;
 330         case OPT_ADDTRUST:
 331             if ((objtmp = OBJ_txt2obj(opt_arg(), 0)) == NULL) {
 332                 BIO_printf(bio_err,
 333                            "%s: Invalid trust object value %s\n",
 334                            prog, opt_arg());
 335                 goto opthelp;
 336             }
 337             if (trust == NULL && (trust = sk_ASN1_OBJECT_new_null()) == NULL)
 338                 goto end;
 339             sk_ASN1_OBJECT_push(trust, objtmp);
 340             trustout = 1;
 341             break;
 342         case OPT_ADDREJECT:
 343             if ((objtmp = OBJ_txt2obj(opt_arg(), 0)) == NULL) {
 344                 BIO_printf(bio_err,
 345                            "%s: Invalid reject object value %s\n",
 346                            prog, opt_arg());
 347                 goto opthelp;
 348             }
 349             if (reject == NULL
 350                 && (reject = sk_ASN1_OBJECT_new_null()) == NULL)
 351                 goto end;
 352             sk_ASN1_OBJECT_push(reject, objtmp);
 353             trustout = 1;
 354             break;
 355         case OPT_SETALIAS:
 356             alias = opt_arg();
 357             trustout = 1;
 358             break;
 359         case OPT_CERTOPT:
 360             if (!set_cert_ex(&certflag, opt_arg()))
 361                 goto opthelp;
 362             break;
 363         case OPT_NAMEOPT:
 364             if (!set_name_ex(&nmflag, opt_arg()))
 365                 goto opthelp;
 366             break;
 367         case OPT_ENGINE:
 368             e = setup_engine(opt_arg(), 0);
 369             break;
 370         case OPT_C:
 371             C = ++num;
 372             break;
 373         case OPT_EMAIL:
 374             email = ++num;
 375             break;
 376         case OPT_OCSP_URI:
 377             ocsp_uri = ++num;
 378             break;
 379         case OPT_SERIAL:
 380             serial = ++num;
 381             break;
 382         case OPT_NEXT_SERIAL:
 383             next_serial = ++num;
 384             break;
 385         case OPT_MODULUS:
 386             modulus = ++num;
 387             break;
 388         case OPT_PUBKEY:
 389             pubkey = ++num;
 390             break;
 391         case OPT_X509TOREQ:
 392             x509req = ++num;
 393             break;
 394         case OPT_TEXT:
 395             text = ++num;
 396             break;
 397         case OPT_SUBJECT:
 398             subject = ++num;
 399             break;
 400         case OPT_ISSUER:
 401             issuer = ++num;
 402             break;
 403         case OPT_FINGERPRINT:
 404             fingerprint = ++num;
 405             break;
 406         case OPT_HASH:
 407             subject_hash = ++num;
 408             break;
 409         case OPT_ISSUER_HASH:
 410             issuer_hash = ++num;
 411             break;
 412         case OPT_PURPOSE:
 413             pprint = ++num;
 414             break;
 415         case OPT_STARTDATE:
 416             startdate = ++num;
 417             break;
 418         case OPT_ENDDATE:
 419             enddate = ++num;
 420             break;
 421         case OPT_NOOUT:
 422             noout = ++num;
 423             break;
 424         case OPT_NOCERT:
 425             nocert = 1;
 426             break;
 427         case OPT_TRUSTOUT:
 428             trustout = 1;
 429             break;
 430         case OPT_CLRTRUST:
 431             clrtrust = ++num;
 432             break;
 433         case OPT_CLRREJECT:
 434             clrreject = ++num;
 435             break;
 436         case OPT_ALIAS:
 437             aliasout = ++num;
 438             break;
 439         case OPT_CACREATESERIAL:
 440             CA_createserial = ++num;
 441             break;
 442         case OPT_CLREXT:
 443             clrext = 1;
 444             break;
 445         case OPT_OCSPID:
 446             ocspid = ++num;
 447             break;
 448         case OPT_BADSIG:
 449             badsig = 1;
 450             break;
 451 #ifndef OPENSSL_NO_MD5
 452         case OPT_SUBJECT_HASH_OLD:
 453             subject_hash_old = ++num;
 454             break;
 455         case OPT_ISSUER_HASH_OLD:
 456             issuer_hash_old = ++num;
 457             break;
 458 #else
 459         case OPT_SUBJECT_HASH_OLD:
 460         case OPT_ISSUER_HASH_OLD:
 461             break;
 462 #endif
 463         case OPT_DATES:
 464             startdate = ++num;
 465             enddate = ++num;
 466             break;
 467         case OPT_CHECKEND:
 468             checkoffset = atoi(opt_arg());
 469             checkend = 1;
 470             break;
 471         case OPT_CHECKHOST:
 472             checkhost = opt_arg();
 473             break;
 474         case OPT_CHECKEMAIL:
 475             checkemail = opt_arg();
 476             break;
 477         case OPT_CHECKIP:
 478             checkip = opt_arg();
 479             break;
 480         case OPT_MD:
 481             if (!opt_md(opt_unknown(), &digest))
 482                 goto opthelp;
 483         }
 484     }
 485     argc = opt_num_rest();
 486     argv = opt_rest();
 487     if (argc != 0) {
 488         BIO_printf(bio_err, "%s: Unknown parameter %s\n", prog, argv[0]);
 489         goto opthelp;
 490     }
 491
 492     if (!app_load_modules(NULL))
 493         goto end;
 494
 495     out = bio_open_default(outfile, "w");
 496     if (out == NULL)
 497         goto end;
 498
 499     if (need_rand)
 500         app_RAND_load_file(NULL, 0);
 501
 502     if (!app_passwd(passinarg, NULL, &passin, NULL)) {
 503         BIO_printf(bio_err, "Error getting password\n");
 504         goto end;
 505     }
 506
 507     if (!X509_STORE_set_default_paths(ctx)) {
 508         ERR_print_errors(bio_err);
 509         goto end;
 510     }
 511
 512     if (fkeyfile) {
 513         fkey = load_pubkey(fkeyfile, keyformat, 0, NULL, e, "Forced key");
 514         if (fkey == NULL)
 515             goto end;
 516     }
 517
 518     if ((CAkeyfile == NULL) && (CA_flag) && (CAformat == FORMAT_PEM)) {
 519         CAkeyfile = CAfile;
 520     } else if ((CA_flag) && (CAkeyfile == NULL)) {
 521         BIO_printf(bio_err,
 522                    "need to specify a CAkey if using the CA command\n");
 523         goto end;
 524     }
 525
 526     if (extfile) {
 527         X509V3_CTX ctx2;
 528         if ((extconf = app_load_config(extfile)) == NULL)
 529             goto end;
 530         if (!extsect) {
 531             extsect = NCONF_get_string(extconf, "default", "extensions");
 532             if (!extsect) {
 533                 ERR_clear_error();
 534                 extsect = "default";
 535             }
 536         }
 537         X509V3_set_ctx_test(&ctx2);
 538         X509V3_set_nconf(&ctx2, extconf);
 539         if (!X509V3_EXT_add_nconf(extconf, &ctx2, extsect, NULL)) {
 540             BIO_printf(bio_err,
 541                        "Error Loading extension section %s\n", extsect);
 542             ERR_print_errors(bio_err);
 543             goto end;
 544         }
 545     }
 546
 547     if (reqfile) {
 548         EVP_PKEY *pkey;
 549         BIO *in;
 550
 551         if (!sign_flag && !CA_flag) {
 552             BIO_printf(bio_err, "We need a private key to sign with\n");
 553             goto end;
 554         }
 555         in = bio_open_default(infile, "r");
 556         if (in == NULL)
 557             goto end;
 558         req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL);
 559         BIO_free(in);
 560
 561         if (req == NULL) {
 562             ERR_print_errors(bio_err);
 563             goto end;
 564         }
 565
 566         if ((req->req_info == NULL) ||
 567             (req->req_info->pubkey == NULL) ||
 568             (req->req_info->pubkey->public_key == NULL) ||
 569             (req->req_info->pubkey->public_key->data == NULL)) {
 570             BIO_printf(bio_err,
 571                        "The certificate request appears to corrupted\n");
 572             BIO_printf(bio_err, "It does not contain a public key\n");
 573             goto end;
 574         }
 575         if ((pkey = X509_REQ_get_pubkey(req)) == NULL) {
 576             BIO_printf(bio_err, "error unpacking public key\n");
 577             goto end;
 578         }
 579         i = X509_REQ_verify(req, pkey);
 580         EVP_PKEY_free(pkey);
 581         if (i < 0) {
 582             BIO_printf(bio_err, "Signature verification error\n");
 583             ERR_print_errors(bio_err);
 584             goto end;
 585         }
 586         if (i == 0) {
 587             BIO_printf(bio_err,
 588                        "Signature did not match the certificate request\n");
 589             goto end;
 590         } else
 591             BIO_printf(bio_err, "Signature ok\n");
 592
 593         print_name(bio_err, "subject=", X509_REQ_get_subject_name(req),
 594                    nmflag);
 595
 596         if ((x = X509_new()) == NULL)
 597             goto end;
 598
 599         if (sno == NULL) {
 600             sno = ASN1_INTEGER_new();
 601             if (!sno || !rand_serial(NULL, sno))
 602                 goto end;
 603             if (!X509_set_serialNumber(x, sno))
 604                 goto end;
 605             ASN1_INTEGER_free(sno);
 606             sno = NULL;
 607         } else if (!X509_set_serialNumber(x, sno))
 608             goto end;
 609
 610         if (!X509_set_issuer_name(x, req->req_info->subject))
 611             goto end;
 612         if (!X509_set_subject_name(x, req->req_info->subject))
 613             goto end;
 614
 615         X509_gmtime_adj(X509_get_notBefore(x), 0);
 616         X509_time_adj_ex(X509_get_notAfter(x), days, 0, NULL);
 617         if (fkey)
 618             X509_set_pubkey(x, fkey);
 619         else {
 620             pkey = X509_REQ_get_pubkey(req);
 621             X509_set_pubkey(x, pkey);
 622             EVP_PKEY_free(pkey);
 623         }
 624     } else
 625         x = load_cert(infile, informat, NULL, e, "Certificate");
 626
 627     if (x == NULL)
 628         goto end;
 629     if (CA_flag) {
 630         xca = load_cert(CAfile, CAformat, NULL, e, "CA Certificate");
 631         if (xca == NULL)
 632             goto end;
 633     }
 634
 635     if (!noout || text || next_serial) {
 636         OBJ_create("2.99999.3", "SET.ex3", "SET x509v3 extension 3");
 637
 638     }
 639
 640     if (alias)
 641         X509_alias_set1(x, (unsigned char *)alias, -1);
 642
 643     if (clrtrust)
 644         X509_trust_clear(x);
 645     if (clrreject)
 646         X509_reject_clear(x);
 647
 648     if (trust) {
 649         for (i = 0; i < sk_ASN1_OBJECT_num(trust); i++) {
 650             objtmp = sk_ASN1_OBJECT_value(trust, i);
 651             X509_add1_trust_object(x, objtmp);
 652         }
 653     }
 654
 655     if (reject) {
 656         for (i = 0; i < sk_ASN1_OBJECT_num(reject); i++) {
 657             objtmp = sk_ASN1_OBJECT_value(reject, i);
 658             X509_add1_reject_object(x, objtmp);
 659         }
 660     }
 661
 662     if (num) {
 663         for (i = 1; i <= num; i++) {
 664             if (issuer == i) {
 665                 print_name(out, "issuer= ", X509_get_issuer_name(x), nmflag);
 666             } else if (subject == i) {
 667                 print_name(out, "subject= ",
 668                            X509_get_subject_name(x), nmflag);
 669             } else if (serial == i) {
 670                 BIO_printf(out, "serial=");
 671                 i2a_ASN1_INTEGER(out, X509_get_serialNumber(x));
 672                 BIO_printf(out, "\n");
 673             } else if (next_serial == i) {
 674                 BIGNUM *bnser;
 675                 ASN1_INTEGER *ser;
 676                 ser = X509_get_serialNumber(x);
 677                 bnser = ASN1_INTEGER_to_BN(ser, NULL);
 678                 if (!bnser)
 679                     goto end;
 680                 if (!BN_add_word(bnser, 1))
 681                     goto end;
 682                 ser = BN_to_ASN1_INTEGER(bnser, NULL);
 683                 if (!ser)
 684                     goto end;
 685                 BN_free(bnser);
 686                 i2a_ASN1_INTEGER(out, ser);
 687                 ASN1_INTEGER_free(ser);
 688                 BIO_puts(out, "\n");
 689             } else if ((email == i) || (ocsp_uri == i)) {
 690                 int j;
 691                 STACK_OF(OPENSSL_STRING) *emlst;
 692                 if (email == i)
 693                     emlst = X509_get1_email(x);
 694                 else
 695                     emlst = X509_get1_ocsp(x);
 696                 for (j = 0; j < sk_OPENSSL_STRING_num(emlst); j++)
 697                     BIO_printf(out, "%s\n",
 698                                sk_OPENSSL_STRING_value(emlst, j));
 699                 X509_email_free(emlst);
 700             } else if (aliasout == i) {
 701                 unsigned char *alstr;
 702                 alstr = X509_alias_get0(x, NULL);
 703                 if (alstr)
 704                     BIO_printf(out, "%s\n", alstr);
 705                 else
 706                     BIO_puts(out, "<No Alias>\n");
 707             } else if (subject_hash == i) {
 708                 BIO_printf(out, "%08lx\n", X509_subject_name_hash(x));
 709             }
 710 #ifndef OPENSSL_NO_MD5
 711             else if (subject_hash_old == i) {
 712                 BIO_printf(out, "%08lx\n", X509_subject_name_hash_old(x));
 713             }
 714 #endif
 715             else if (issuer_hash == i) {
 716                 BIO_printf(out, "%08lx\n", X509_issuer_name_hash(x));
 717             }
 718 #ifndef OPENSSL_NO_MD5
 719             else if (issuer_hash_old == i) {
 720                 BIO_printf(out, "%08lx\n", X509_issuer_name_hash_old(x));
 721             }
 722 #endif
 723             else if (pprint == i) {
 724                 X509_PURPOSE *ptmp;
 725                 int j;
 726                 BIO_printf(out, "Certificate purposes:\n");
 727                 for (j = 0; j < X509_PURPOSE_get_count(); j++) {
 728                     ptmp = X509_PURPOSE_get0(j);
 729                     purpose_print(out, x, ptmp);
 730                 }
 731             } else if (modulus == i) {
 732                 EVP_PKEY *pkey;
 733
 734                 pkey = X509_get_pubkey(x);
 735                 if (pkey == NULL) {
 736                     BIO_printf(bio_err, "Modulus=unavailable\n");
 737                     ERR_print_errors(bio_err);
 738                     goto end;
 739                 }
 740                 BIO_printf(out, "Modulus=");
 741 #ifndef OPENSSL_NO_RSA
 742                 if (pkey->type == EVP_PKEY_RSA)
 743                     BN_print(out, pkey->pkey.rsa->n);
 744                 else
 745 #endif
 746 #ifndef OPENSSL_NO_DSA
 747                 if (pkey->type == EVP_PKEY_DSA)
 748                     BN_print(out, pkey->pkey.dsa->pub_key);
 749                 else
 750 #endif
 751                     BIO_printf(out, "Wrong Algorithm type");
 752                 BIO_printf(out, "\n");
 753                 EVP_PKEY_free(pkey);
 754             } else if (pubkey == i) {
 755                 EVP_PKEY *pkey;
 756
 757                 pkey = X509_get_pubkey(x);
 758                 if (pkey == NULL) {
 759                     BIO_printf(bio_err, "Error getting public key\n");
 760                     ERR_print_errors(bio_err);
 761                     goto end;
 762                 }
 763                 PEM_write_bio_PUBKEY(out, pkey);
 764                 EVP_PKEY_free(pkey);
 765             } else if (C == i) {
 766                 unsigned char *d;
 767                 char *m;
 768                 int len;
 769
 770                 X509_NAME_oneline(X509_get_subject_name(x), buf, sizeof buf);
 771                 BIO_printf(out, "/*\n"
 772                                 " * Subject: %s\n", buf);
 773
 774                 m = X509_NAME_oneline(X509_get_issuer_name(x), buf, sizeof buf);
 775                 BIO_printf(out, " * Issuer:  %s\n"
 776                                 " */\n", buf);
 777
 778                 len = i2d_X509(x, NULL);
 779                 m = app_malloc(len, "x509 name buffer");
 780                 d = (unsigned char *)m;
 781                 len = i2d_X509_NAME(X509_get_subject_name(x), &d);
 782                 print_array(out, "the_subject_name", len, (unsigned char *)m);
 783                 d = (unsigned char *)m;
 784                 len = i2d_X509_PUBKEY(X509_get_X509_PUBKEY(x), &d);
 785                 print_array(out, "the_public_key", len, (unsigned char *)m);
 786                 d = (unsigned char *)m;
 787                 len = i2d_X509(x, &d);
 788                 print_array(out, "the_certificate", len, (unsigned char *)m);
 789                 OPENSSL_free(m);
 790             } else if (text == i) {
 791                 X509_print_ex(out, x, nmflag, certflag);
 792             } else if (startdate == i) {
 793                 BIO_puts(out, "notBefore=");
 794                 ASN1_TIME_print(out, X509_get_notBefore(x));
 795                 BIO_puts(out, "\n");
 796             } else if (enddate == i) {
 797                 BIO_puts(out, "notAfter=");
 798                 ASN1_TIME_print(out, X509_get_notAfter(x));
 799                 BIO_puts(out, "\n");
 800             } else if (fingerprint == i) {
 801                 int j;
 802                 unsigned int n;
 803                 unsigned char md[EVP_MAX_MD_SIZE];
 804                 const EVP_MD *fdig = digest;
 805
 806                 if (!fdig)
 807                     fdig = EVP_sha1();
 808
 809                 if (!X509_digest(x, fdig, md, &n)) {
 810                     BIO_printf(bio_err, "out of memory\n");
 811                     goto end;
 812                 }
 813                 BIO_printf(out, "%s Fingerprint=",
 814                            OBJ_nid2sn(EVP_MD_type(fdig)));
 815                 for (j = 0; j < (int)n; j++) {
 816                     BIO_printf(out, "%02X%c", md[j], (j + 1 == (int)n)
 817                                ? '\n' : ':');
 818                 }
 819             }
 820
 821             /* should be in the library */
 822             else if ((sign_flag == i) && (x509req == 0)) {
 823                 BIO_printf(bio_err, "Getting Private key\n");
 824                 if (Upkey == NULL) {
 825                     Upkey = load_key(keyfile, keyformat, 0,
 826                                      passin, e, "Private key");
 827                     if (Upkey == NULL)
 828                         goto end;
 829                 }
 830
 831                 assert(need_rand);
 832                 if (!sign(x, Upkey, days, clrext, digest, extconf, extsect))
 833                     goto end;
 834             } else if (CA_flag == i) {
 835                 BIO_printf(bio_err, "Getting CA Private Key\n");
 836                 if (CAkeyfile != NULL) {
 837                     CApkey = load_key(CAkeyfile, CAkeyformat,
 838                                       0, passin, e, "CA Private Key");
 839                     if (CApkey == NULL)
 840                         goto end;
 841                 }
 842
 843                 assert(need_rand);
 844                 if (!x509_certify(ctx, CAfile, digest, x, xca,
 845                                   CApkey, sigopts,
 846                                   CAserial, CA_createserial, days, clrext,
 847                                   extconf, extsect, sno, reqfile))
 848                     goto end;
 849             } else if (x509req == i) {
 850                 EVP_PKEY *pk;
 851
 852                 BIO_printf(bio_err, "Getting request Private Key\n");
 853                 if (keyfile == NULL) {
 854                     BIO_printf(bio_err, "no request key file specified\n");
 855                     goto end;
 856                 } else {
 857                     pk = load_key(keyfile, keyformat, 0,
 858                                   passin, e, "request key");
 859                     if (pk == NULL)
 860                         goto end;
 861                 }
 862
 863                 BIO_printf(bio_err, "Generating certificate request\n");
 864
 865                 rq = X509_to_X509_REQ(x, pk, digest);
 866                 EVP_PKEY_free(pk);
 867                 if (rq == NULL) {
 868                     ERR_print_errors(bio_err);
 869                     goto end;
 870                 }
 871                 if (!noout) {
 872                     X509_REQ_print(out, rq);
 873                     PEM_write_bio_X509_REQ(out, rq);
 874                 }
 875                 noout = 1;
 876             } else if (ocspid == i) {
 877                 X509_ocspid_print(out, x);
 878             }
 879         }
 880     }
 881
 882     if (checkend) {
 883         time_t tcheck = time(NULL) + checkoffset;
 884
 885         if (X509_cmp_time(X509_get_notAfter(x), &tcheck) < 0) {
 886             BIO_printf(out, "Certificate will expire\n");
 887             ret = 1;
 888         } else {
 889             BIO_printf(out, "Certificate will not expire\n");
 890             ret = 0;
 891         }
 892         goto end;
 893     }
 894
 895     print_cert_checks(out, x, checkhost, checkemail, checkip);
 896
 897     if (noout || nocert) {
 898         ret = 0;
 899         goto end;
 900     }
 901
 902     if (badsig)
 903         x->signature->data[x->signature->length - 1] ^= 0x1;
 904
 905     if (outformat == FORMAT_ASN1)
 906         i = i2d_X509_bio(out, x);
 907     else if (outformat == FORMAT_PEM) {
 908         if (trustout)
 909             i = PEM_write_bio_X509_AUX(out, x);
 910         else
 911             i = PEM_write_bio_X509(out, x);
 912     } else if (outformat == FORMAT_NETSCAPE) {
 913         NETSCAPE_X509 nx;
 914         ASN1_OCTET_STRING hdr;
 915
 916         hdr.data = (unsigned char *)NETSCAPE_CERT_HDR;
 917         hdr.length = strlen(NETSCAPE_CERT_HDR);
 918         nx.header = &hdr;
 919         nx.cert = x;
 920
 921         i = ASN1_item_i2d_bio(ASN1_ITEM_rptr(NETSCAPE_X509), out, &nx);
 922     } else {
 923         BIO_printf(bio_err, "bad output format specified for outfile\n");
 924         goto end;
 925     }
 926     if (!i) {
 927         BIO_printf(bio_err, "unable to write certificate\n");
 928         ERR_print_errors(bio_err);
 929         goto end;
 930     }
 931     ret = 0;
 932  end:
 933     if (need_rand)
 934         app_RAND_write_file(NULL);
 935     OBJ_cleanup();
 936     NCONF_free(extconf);
 937     BIO_free_all(out);
 938     X509_STORE_free(ctx);
 939     X509_REQ_free(req);
 940     X509_free(x);
 941     X509_free(xca);
 942     EVP_PKEY_free(Upkey);
 943     EVP_PKEY_free(CApkey);
 944     EVP_PKEY_free(fkey);
 945     sk_OPENSSL_STRING_free(sigopts);
 946     X509_REQ_free(rq);
 947     ASN1_INTEGER_free(sno);
 948     sk_ASN1_OBJECT_pop_free(trust, ASN1_OBJECT_free);
 949     sk_ASN1_OBJECT_pop_free(reject, ASN1_OBJECT_free);
 950     OPENSSL_free(passin);
 951     return (ret);
 952 }
 953
 954 static ASN1_INTEGER *x509_load_serial(char *CAfile, char *serialfile,
 955                                       int create)
 956 {
 957     char *buf = NULL, *p;
 958     ASN1_INTEGER *bs = NULL;
 959     BIGNUM *serial = NULL;
 960     size_t len;
 961
 962     len = ((serialfile == NULL)
 963            ? (strlen(CAfile) + strlen(POSTFIX) + 1)
 964            : (strlen(serialfile))) + 1;
 965     buf = app_malloc(len, "serial# buffer");
 966     if (serialfile == NULL) {
 967         BUF_strlcpy(buf, CAfile, len);
 968         for (p = buf; *p; p++)
 969             if (*p == '.') {
 970                 *p = '\0';
 971                 break;
 972             }
 973         BUF_strlcat(buf, POSTFIX, len);
 974     } else
 975         BUF_strlcpy(buf, serialfile, len);
 976
 977     serial = load_serial(buf, create, NULL);
 978     if (serial == NULL)
 979         goto end;
 980
 981     if (!BN_add_word(serial, 1)) {
 982         BIO_printf(bio_err, "add_word failure\n");
 983         goto end;
 984     }
 985
 986     if (!save_serial(buf, NULL, serial, &bs))
 987         goto end;
 988
 989  end:
 990     OPENSSL_free(buf);
 991     BN_free(serial);
 992     return bs;
 993 }
 994
 995 static int x509_certify(X509_STORE *ctx, char *CAfile, const EVP_MD *digest,
 996                         X509 *x, X509 *xca, EVP_PKEY *pkey,
 997                         STACK_OF(OPENSSL_STRING) *sigopts,
 998                         char *serialfile, int create,
 999                         int days, int clrext, CONF *conf, char *section,
1000                         ASN1_INTEGER *sno, int reqfile)
1001 {
1002     int ret = 0;
1003     ASN1_INTEGER *bs = NULL;
1004     X509_STORE_CTX xsc;
1005     EVP_PKEY *upkey;
1006
1007     upkey = X509_get_pubkey(xca);
1008     EVP_PKEY_copy_parameters(upkey, pkey);
1009     EVP_PKEY_free(upkey);
1010
1011     if (!X509_STORE_CTX_init(&xsc, ctx, x, NULL)) {
1012         BIO_printf(bio_err, "Error initialising X509 store\n");
1013         goto end;
1014     }
1015     if (sno)
1016         bs = sno;
1017     else if ((bs = x509_load_serial(CAfile, serialfile, create)) == NULL)
1018         goto end;
1019
1020     /*
1021      * NOTE: this certificate can/should be self signed, unless it was a
1022      * certificate request in which case it is not.
1023      */
1024     X509_STORE_CTX_set_cert(&xsc, x);
1025     X509_STORE_CTX_set_flags(&xsc, X509_V_FLAG_CHECK_SS_SIGNATURE);
1026     if (!reqfile && X509_verify_cert(&xsc) <= 0)
1027         goto end;
1028
1029     if (!X509_check_private_key(xca, pkey)) {
1030         BIO_printf(bio_err,
1031                    "CA certificate and CA private key do not match\n");
1032         goto end;
1033     }
1034
1035     if (!X509_set_issuer_name(x, X509_get_subject_name(xca)))
1036         goto end;
1037     if (!X509_set_serialNumber(x, bs))
1038         goto end;
1039
1040     if (X509_gmtime_adj(X509_get_notBefore(x), 0L) == NULL)
1041         goto end;
1042
1043     /* hardwired expired */
1044     if (X509_time_adj_ex(X509_get_notAfter(x), days, 0, NULL) == NULL)
1045         goto end;
1046
1047     if (clrext) {
1048         while (X509_get_ext_count(x) > 0)
1049             X509_delete_ext(x, 0);
1050     }
1051
1052     if (conf) {
1053         X509V3_CTX ctx2;
1054 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
1055         X509_set_version(x, force_version);
1056 #else
1057         X509_set_version(x, 2); /* version 3 certificate */
1058 #endif
1059         X509V3_set_ctx(&ctx2, xca, x, NULL, NULL, 0);
1060         X509V3_set_nconf(&ctx2, conf);
1061         if (!X509V3_EXT_add_nconf(conf, &ctx2, section, x))
1062             goto end;
1063     }
1064
1065     if (!do_X509_sign(x, pkey, digest, sigopts))
1066         goto end;
1067     ret = 1;
1068  end:
1069     X509_STORE_CTX_cleanup(&xsc);
1070     if (!ret)
1071         ERR_print_errors(bio_err);
1072     if (!sno)
1073         ASN1_INTEGER_free(bs);
1074     return ret;
1075 }
1076
1077 static int callb(int ok, X509_STORE_CTX *ctx)
1078 {
1079     int err;
1080     X509 *err_cert;
1081
1082     /*
1083      * it is ok to use a self signed certificate This case will catch both
1084      * the initial ok == 0 and the final ok == 1 calls to this function
1085      */
1086     err = X509_STORE_CTX_get_error(ctx);
1087     if (err == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT)
1088         return 1;
1089
1090     /*
1091      * BAD we should have gotten an error.  Normally if everything worked
1092      * X509_STORE_CTX_get_error(ctx) will still be set to
1093      * DEPTH_ZERO_SELF_....
1094      */
1095     if (ok) {
1096         BIO_printf(bio_err,
1097                    "error with certificate to be certified - should be self signed\n");
1098         return 0;
1099     } else {
1100         err_cert = X509_STORE_CTX_get_current_cert(ctx);
1101         print_name(bio_err, NULL, X509_get_subject_name(err_cert), 0);
1102         BIO_printf(bio_err,
1103                    "error with certificate - error %d at depth %d\n%s\n", err,
1104                    X509_STORE_CTX_get_error_depth(ctx),
1105                    X509_verify_cert_error_string(err));
1106         return 1;
1107     }
1108 }
1109
1110 /* self sign */
1111 static int sign(X509 *x, EVP_PKEY *pkey, int days, int clrext,
1112                 const EVP_MD *digest, CONF *conf, char *section)
1113 {
1114
1115     if (!X509_set_issuer_name(x, X509_get_subject_name(x)))
1116         goto err;
1117     if (X509_gmtime_adj(X509_get_notBefore(x), 0) == NULL)
1118         goto err;
1119
1120     if (X509_gmtime_adj(X509_get_notAfter(x), (long)60 * 60 * 24 * days) ==
1121         NULL)
1122         goto err;
1123
1124     if (!X509_set_pubkey(x, pkey))
1125         goto err;
1126     if (clrext) {
1127         while (X509_get_ext_count(x) > 0)
1128             X509_delete_ext(x, 0);
1129     }
1130     if (conf) {
1131         X509V3_CTX ctx;
1132 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
1133         X509_set_version(x, force_version);
1134 #else
1135         X509_set_version(x, 2); /* version 3 certificate */
1136 #endif
1137         X509V3_set_ctx(&ctx, x, x, NULL, NULL, 0);
1138         X509V3_set_nconf(&ctx, conf);
1139         if (!X509V3_EXT_add_nconf(conf, &ctx, section, x))
1140             goto err;
1141     }
1142     if (!X509_sign(x, pkey, digest))
1143         goto err;
1144     return 1;
1145  err:
1146     ERR_print_errors(bio_err);
1147     return 0;
1148 }
1149
1150 static int purpose_print(BIO *bio, X509 *cert, X509_PURPOSE *pt)
1151 {
1152     int id, i, idret;
1153     char *pname;
1154     id = X509_PURPOSE_get_id(pt);
1155     pname = X509_PURPOSE_get0_name(pt);
1156     for (i = 0; i < 2; i++) {
1157         idret = X509_check_purpose(cert, id, i);
1158         BIO_printf(bio, "%s%s : ", pname, i ? " CA" : "");
1159         if (idret == 1)
1160             BIO_printf(bio, "Yes\n");
1161         else if (idret == 0)
1162             BIO_printf(bio, "No\n");
1163         else
1164             BIO_printf(bio, "Yes (WARNING code=%d)\n", idret);
1165     }
1166     return 1;
1167 }