apps/x509.c

   1 /*
   2  * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12 #include <string.h>
  13 #include "apps.h"
  14 #include "progs.h"
  15 #include <openssl/bio.h>
  16 #include <openssl/asn1.h>
  17 #include <openssl/err.h>
  18 #include <openssl/bn.h>
  19 #include <openssl/evp.h>
  20 #include <openssl/x509.h>
  21 #include <openssl/x509v3.h>
  22 #include <openssl/objects.h>
  23 #include <openssl/pem.h>
  24 #ifndef OPENSSL_NO_RSA
  25 # include <openssl/rsa.h>
  26 #endif
  27 #ifndef OPENSSL_NO_DSA
  28 # include <openssl/dsa.h>
  29 #endif
  30
  31 #undef POSTFIX
  32 #define POSTFIX ".srl"
  33 #define DEF_DAYS        30
  34
  35 static int callb(int ok, X509_STORE_CTX *ctx);
  36 static int sign(X509 *x, EVP_PKEY *pkey, int days, int clrext,
  37                 const EVP_MD *digest, CONF *conf, const char *section,
  38                 int preserve_dates);
  39 static int x509_certify(X509_STORE *ctx, const char *CAfile, const EVP_MD *digest,
  40                         X509 *x, X509 *xca, EVP_PKEY *pkey,
  41                         STACK_OF(OPENSSL_STRING) *sigopts, const char *serialfile,
  42                         int create, int days, int clrext, CONF *conf,
  43                         const char *section, ASN1_INTEGER *sno, int reqfile,
  44                         int preserve_dates);
  45 static int purpose_print(BIO *bio, X509 *cert, X509_PURPOSE *pt);
  46 static int print_x509v3_exts(BIO *bio, X509 *x, const char *exts);
  47
  48 typedef enum OPTION_choice {
  49     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
  50     OPT_INFORM, OPT_OUTFORM, OPT_KEYFORM, OPT_REQ, OPT_CAFORM,
  51     OPT_CAKEYFORM, OPT_SIGOPT, OPT_DAYS, OPT_PASSIN, OPT_EXTFILE,
  52     OPT_EXTENSIONS, OPT_IN, OPT_OUT, OPT_SIGNKEY, OPT_CA,
  53     OPT_CAKEY, OPT_CASERIAL, OPT_SET_SERIAL, OPT_FORCE_PUBKEY,
  54     OPT_ADDTRUST, OPT_ADDREJECT, OPT_SETALIAS, OPT_CERTOPT, OPT_NAMEOPT,
  55     OPT_C, OPT_EMAIL, OPT_OCSP_URI, OPT_SERIAL, OPT_NEXT_SERIAL,
  56     OPT_MODULUS, OPT_PUBKEY, OPT_X509TOREQ, OPT_TEXT, OPT_HASH,
  57     OPT_ISSUER_HASH, OPT_SUBJECT, OPT_ISSUER, OPT_FINGERPRINT, OPT_DATES,
  58     OPT_PURPOSE, OPT_STARTDATE, OPT_ENDDATE, OPT_CHECKEND, OPT_CHECKHOST,
  59     OPT_CHECKEMAIL, OPT_CHECKIP, OPT_NOOUT, OPT_TRUSTOUT, OPT_CLRTRUST,
  60     OPT_CLRREJECT, OPT_ALIAS, OPT_CACREATESERIAL, OPT_CLREXT, OPT_OCSPID,
  61     OPT_SUBJECT_HASH_OLD,
  62     OPT_ISSUER_HASH_OLD,
  63     OPT_BADSIG, OPT_MD, OPT_ENGINE, OPT_NOCERT, OPT_PRESERVE_DATES,
  64     OPT_R_ENUM, OPT_EXT
  65 } OPTION_CHOICE;
  66
  67 const OPTIONS x509_options[] = {
  68     {"help", OPT_HELP, '-', "Display this summary"},
  69     {"inform", OPT_INFORM, 'f',
  70      "Input format - default PEM (one of DER, NET or PEM)"},
  71     {"in", OPT_IN, '<', "Input file - default stdin"},
  72     {"outform", OPT_OUTFORM, 'f',
  73      "Output format - default PEM (one of DER, NET or PEM)"},
  74     {"out", OPT_OUT, '>', "Output file - default stdout"},
  75     {"keyform", OPT_KEYFORM, 'F', "Private key format - default PEM"},
  76     {"passin", OPT_PASSIN, 's', "Private key password/pass-phrase source"},
  77     {"serial", OPT_SERIAL, '-', "Print serial number value"},
  78     {"subject_hash", OPT_HASH, '-', "Print subject hash value"},
  79     {"issuer_hash", OPT_ISSUER_HASH, '-', "Print issuer hash value"},
  80     {"hash", OPT_HASH, '-', "Synonym for -subject_hash"},
  81     {"subject", OPT_SUBJECT, '-', "Print subject DN"},
  82     {"issuer", OPT_ISSUER, '-', "Print issuer DN"},
  83     {"email", OPT_EMAIL, '-', "Print email address(es)"},
  84     {"startdate", OPT_STARTDATE, '-', "Set notBefore field"},
  85     {"enddate", OPT_ENDDATE, '-', "Set notAfter field"},
  86     {"purpose", OPT_PURPOSE, '-', "Print out certificate purposes"},
  87     {"dates", OPT_DATES, '-', "Both Before and After dates"},
  88     {"modulus", OPT_MODULUS, '-', "Print the RSA key modulus"},
  89     {"pubkey", OPT_PUBKEY, '-', "Output the public key"},
  90     {"fingerprint", OPT_FINGERPRINT, '-',
  91      "Print the certificate fingerprint"},
  92     {"alias", OPT_ALIAS, '-', "Output certificate alias"},
  93     {"noout", OPT_NOOUT, '-', "No output, just status"},
  94     {"nocert", OPT_NOCERT, '-', "No certificate output"},
  95     {"ocspid", OPT_OCSPID, '-',
  96      "Print OCSP hash values for the subject name and public key"},
  97     {"ocsp_uri", OPT_OCSP_URI, '-', "Print OCSP Responder URL(s)"},
  98     {"trustout", OPT_TRUSTOUT, '-', "Output a trusted certificate"},
  99     {"clrtrust", OPT_CLRTRUST, '-', "Clear all trusted purposes"},
 100     {"clrext", OPT_CLREXT, '-', "Clear all certificate extensions"},
 101     {"addtrust", OPT_ADDTRUST, 's', "Trust certificate for a given purpose"},
 102     {"addreject", OPT_ADDREJECT, 's',
 103      "Reject certificate for a given purpose"},
 104     {"setalias", OPT_SETALIAS, 's', "Set certificate alias"},
 105     {"days", OPT_DAYS, 'n',
 106      "How long till expiry of a signed certificate - def 30 days"},
 107     {"checkend", OPT_CHECKEND, 'M',
 108      "Check whether the cert expires in the next arg seconds"},
 109     {OPT_MORE_STR, 1, 1, "Exit 1 if so, 0 if not"},
 110     {"signkey", OPT_SIGNKEY, '<', "Self sign cert with arg"},
 111     {"x509toreq", OPT_X509TOREQ, '-',
 112      "Output a certification request object"},
 113     {"req", OPT_REQ, '-', "Input is a certificate request, sign and output"},
 114     {"CA", OPT_CA, '<', "Set the CA certificate, must be PEM format"},
 115     {"CAkey", OPT_CAKEY, 's',
 116      "The CA key, must be PEM format; if not in CAfile"},
 117     {"CAcreateserial", OPT_CACREATESERIAL, '-',
 118      "Create serial number file if it does not exist"},
 119     {"CAserial", OPT_CASERIAL, 's', "Serial file"},
 120     {"set_serial", OPT_SET_SERIAL, 's', "Serial number to use"},
 121     {"text", OPT_TEXT, '-', "Print the certificate in text form"},
 122     {"ext", OPT_EXT, 's', "Print various X509V3 extensions"},
 123     {"C", OPT_C, '-', "Print out C code forms"},
 124     {"extfile", OPT_EXTFILE, '<', "File with X509V3 extensions to add"},
 125     OPT_R_OPTIONS,
 126     {"extensions", OPT_EXTENSIONS, 's', "Section from config file to use"},
 127     {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
 128     {"certopt", OPT_CERTOPT, 's', "Various certificate text options"},
 129     {"checkhost", OPT_CHECKHOST, 's', "Check certificate matches host"},
 130     {"checkemail", OPT_CHECKEMAIL, 's', "Check certificate matches email"},
 131     {"checkip", OPT_CHECKIP, 's', "Check certificate matches ipaddr"},
 132     {"CAform", OPT_CAFORM, 'F', "CA format - default PEM"},
 133     {"CAkeyform", OPT_CAKEYFORM, 'f', "CA key format - default PEM"},
 134     {"sigopt", OPT_SIGOPT, 's', "Signature parameter in n:v form"},
 135     {"force_pubkey", OPT_FORCE_PUBKEY, '<', "Force the Key to put inside certificate"},
 136     {"next_serial", OPT_NEXT_SERIAL, '-', "Increment current certificate serial number"},
 137     {"clrreject", OPT_CLRREJECT, '-',
 138      "Clears all the prohibited or rejected uses of the certificate"},
 139     {"badsig", OPT_BADSIG, '-', "Corrupt last byte of certificate signature (for test)"},
 140     {"", OPT_MD, '-', "Any supported digest"},
 141 #ifndef OPENSSL_NO_MD5
 142     {"subject_hash_old", OPT_SUBJECT_HASH_OLD, '-',
 143      "Print old-style (MD5) issuer hash value"},
 144     {"issuer_hash_old", OPT_ISSUER_HASH_OLD, '-',
 145      "Print old-style (MD5) subject hash value"},
 146 #endif
 147 #ifndef OPENSSL_NO_ENGINE
 148     {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
 149 #endif
 150     {"preserve_dates", OPT_PRESERVE_DATES, '-', "preserve existing dates when signing"},
 151     {NULL}
 152 };
 153
 154 int x509_main(int argc, char **argv)
 155 {
 156     ASN1_INTEGER *sno = NULL;
 157     ASN1_OBJECT *objtmp = NULL;
 158     BIO *out = NULL;
 159     CONF *extconf = NULL;
 160     EVP_PKEY *Upkey = NULL, *CApkey = NULL, *fkey = NULL;
 161     STACK_OF(ASN1_OBJECT) *trust = NULL, *reject = NULL;
 162     STACK_OF(OPENSSL_STRING) *sigopts = NULL;
 163     X509 *x = NULL, *xca = NULL;
 164     X509_REQ *req = NULL, *rq = NULL;
 165     X509_STORE *ctx = NULL;
 166     const EVP_MD *digest = NULL;
 167     char *CAkeyfile = NULL, *CAserial = NULL, *fkeyfile = NULL, *alias = NULL;
 168     char *checkhost = NULL, *checkemail = NULL, *checkip = NULL, *exts = NULL;
 169     char *extsect = NULL, *extfile = NULL, *passin = NULL, *passinarg = NULL;
 170     char *infile = NULL, *outfile = NULL, *keyfile = NULL, *CAfile = NULL;
 171     char *prog;
 172     int x509req = 0, days = DEF_DAYS, modulus = 0, pubkey = 0, pprint = 0;
 173     int C = 0, CAformat = FORMAT_PEM, CAkeyformat = FORMAT_PEM;
 174     int fingerprint = 0, reqfile = 0, checkend = 0;
 175     int informat = FORMAT_PEM, outformat = FORMAT_PEM, keyformat = FORMAT_PEM;
 176     int next_serial = 0, subject_hash = 0, issuer_hash = 0, ocspid = 0;
 177     int noout = 0, sign_flag = 0, CA_flag = 0, CA_createserial = 0, email = 0;
 178     int ocsp_uri = 0, trustout = 0, clrtrust = 0, clrreject = 0, aliasout = 0;
 179     int ret = 1, i, num = 0, badsig = 0, clrext = 0, nocert = 0;
 180     int text = 0, serial = 0, subject = 0, issuer = 0, startdate = 0, ext = 0;
 181     int enddate = 0;
 182     time_t checkoffset = 0;
 183     unsigned long certflag = 0;
 184     int preserve_dates = 0;
 185     OPTION_CHOICE o;
 186     ENGINE *e = NULL;
 187 #ifndef OPENSSL_NO_MD5
 188     int subject_hash_old = 0, issuer_hash_old = 0;
 189 #endif
 190
 191     ctx = X509_STORE_new();
 192     if (ctx == NULL)
 193         goto end;
 194     X509_STORE_set_verify_cb(ctx, callb);
 195
 196     prog = opt_init(argc, argv, x509_options);
 197     while ((o = opt_next()) != OPT_EOF) {
 198         switch (o) {
 199         case OPT_EOF:
 200         case OPT_ERR:
 201  opthelp:
 202             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 203             goto end;
 204         case OPT_HELP:
 205             opt_help(x509_options);
 206             ret = 0;
 207             goto end;
 208         case OPT_INFORM:
 209             if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
 210                 goto opthelp;
 211             break;
 212         case OPT_IN:
 213             infile = opt_arg();
 214             break;
 215         case OPT_OUTFORM:
 216             if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
 217                 goto opthelp;
 218             break;
 219         case OPT_KEYFORM:
 220             if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &keyformat))
 221                 goto opthelp;
 222             break;
 223         case OPT_CAFORM:
 224             if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &CAformat))
 225                 goto opthelp;
 226             break;
 227         case OPT_CAKEYFORM:
 228             if (!opt_format(opt_arg(), OPT_FMT_ANY, &CAkeyformat))
 229                 goto opthelp;
 230             break;
 231         case OPT_OUT:
 232             outfile = opt_arg();
 233             break;
 234         case OPT_REQ:
 235             reqfile = 1;
 236             break;
 237
 238         case OPT_SIGOPT:
 239             if (!sigopts)
 240                 sigopts = sk_OPENSSL_STRING_new_null();
 241             if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg()))
 242                 goto opthelp;
 243             break;
 244         case OPT_DAYS:
 245             if (preserve_dates)
 246                 goto opthelp;
 247             days = atoi(opt_arg());
 248             break;
 249         case OPT_PASSIN:
 250             passinarg = opt_arg();
 251             break;
 252         case OPT_EXTFILE:
 253             extfile = opt_arg();
 254             break;
 255         case OPT_R_CASES:
 256             if (!opt_rand(o))
 257                 goto end;
 258             break;
 259         case OPT_EXTENSIONS:
 260             extsect = opt_arg();
 261             break;
 262         case OPT_SIGNKEY:
 263             keyfile = opt_arg();
 264             sign_flag = ++num;
 265             break;
 266         case OPT_CA:
 267             CAfile = opt_arg();
 268             CA_flag = ++num;
 269             break;
 270         case OPT_CAKEY:
 271             CAkeyfile = opt_arg();
 272             break;
 273         case OPT_CASERIAL:
 274             CAserial = opt_arg();
 275             break;
 276         case OPT_SET_SERIAL:
 277             if (sno != NULL) {
 278                 BIO_printf(bio_err, "Serial number supplied twice\n");
 279                 goto opthelp;
 280             }
 281             if ((sno = s2i_ASN1_INTEGER(NULL, opt_arg())) == NULL)
 282                 goto opthelp;
 283             break;
 284         case OPT_FORCE_PUBKEY:
 285             fkeyfile = opt_arg();
 286             break;
 287         case OPT_ADDTRUST:
 288             if ((objtmp = OBJ_txt2obj(opt_arg(), 0)) == NULL) {
 289                 BIO_printf(bio_err,
 290                            "%s: Invalid trust object value %s\n",
 291                            prog, opt_arg());
 292                 goto opthelp;
 293             }
 294             if (trust == NULL && (trust = sk_ASN1_OBJECT_new_null()) == NULL)
 295                 goto end;
 296             sk_ASN1_OBJECT_push(trust, objtmp);
 297             objtmp = NULL;
 298             trustout = 1;
 299             break;
 300         case OPT_ADDREJECT:
 301             if ((objtmp = OBJ_txt2obj(opt_arg(), 0)) == NULL) {
 302                 BIO_printf(bio_err,
 303                            "%s: Invalid reject object value %s\n",
 304                            prog, opt_arg());
 305                 goto opthelp;
 306             }
 307             if (reject == NULL
 308                 && (reject = sk_ASN1_OBJECT_new_null()) == NULL)
 309                 goto end;
 310             sk_ASN1_OBJECT_push(reject, objtmp);
 311             objtmp = NULL;
 312             trustout = 1;
 313             break;
 314         case OPT_SETALIAS:
 315             alias = opt_arg();
 316             trustout = 1;
 317             break;
 318         case OPT_CERTOPT:
 319             if (!set_cert_ex(&certflag, opt_arg()))
 320                 goto opthelp;
 321             break;
 322         case OPT_NAMEOPT:
 323             if (!set_nameopt(opt_arg()))
 324                 goto opthelp;
 325             break;
 326         case OPT_ENGINE:
 327             e = setup_engine(opt_arg(), 0);
 328             break;
 329         case OPT_C:
 330             C = ++num;
 331             break;
 332         case OPT_EMAIL:
 333             email = ++num;
 334             break;
 335         case OPT_OCSP_URI:
 336             ocsp_uri = ++num;
 337             break;
 338         case OPT_SERIAL:
 339             serial = ++num;
 340             break;
 341         case OPT_NEXT_SERIAL:
 342             next_serial = ++num;
 343             break;
 344         case OPT_MODULUS:
 345             modulus = ++num;
 346             break;
 347         case OPT_PUBKEY:
 348             pubkey = ++num;
 349             break;
 350         case OPT_X509TOREQ:
 351             x509req = ++num;
 352             break;
 353         case OPT_TEXT:
 354             text = ++num;
 355             break;
 356         case OPT_SUBJECT:
 357             subject = ++num;
 358             break;
 359         case OPT_ISSUER:
 360             issuer = ++num;
 361             break;
 362         case OPT_FINGERPRINT:
 363             fingerprint = ++num;
 364             break;
 365         case OPT_HASH:
 366             subject_hash = ++num;
 367             break;
 368         case OPT_ISSUER_HASH:
 369             issuer_hash = ++num;
 370             break;
 371         case OPT_PURPOSE:
 372             pprint = ++num;
 373             break;
 374         case OPT_STARTDATE:
 375             startdate = ++num;
 376             break;
 377         case OPT_ENDDATE:
 378             enddate = ++num;
 379             break;
 380         case OPT_NOOUT:
 381             noout = ++num;
 382             break;
 383         case OPT_EXT:
 384             ext = ++num;
 385             exts = opt_arg();
 386             break;
 387         case OPT_NOCERT:
 388             nocert = 1;
 389             break;
 390         case OPT_TRUSTOUT:
 391             trustout = 1;
 392             break;
 393         case OPT_CLRTRUST:
 394             clrtrust = ++num;
 395             break;
 396         case OPT_CLRREJECT:
 397             clrreject = ++num;
 398             break;
 399         case OPT_ALIAS:
 400             aliasout = ++num;
 401             break;
 402         case OPT_CACREATESERIAL:
 403             CA_createserial = ++num;
 404             break;
 405         case OPT_CLREXT:
 406             clrext = 1;
 407             break;
 408         case OPT_OCSPID:
 409             ocspid = ++num;
 410             break;
 411         case OPT_BADSIG:
 412             badsig = 1;
 413             break;
 414 #ifndef OPENSSL_NO_MD5
 415         case OPT_SUBJECT_HASH_OLD:
 416             subject_hash_old = ++num;
 417             break;
 418         case OPT_ISSUER_HASH_OLD:
 419             issuer_hash_old = ++num;
 420             break;
 421 #else
 422         case OPT_SUBJECT_HASH_OLD:
 423         case OPT_ISSUER_HASH_OLD:
 424             break;
 425 #endif
 426         case OPT_DATES:
 427             startdate = ++num;
 428             enddate = ++num;
 429             break;
 430         case OPT_CHECKEND:
 431             checkend = 1;
 432             {
 433                 intmax_t temp = 0;
 434                 if (!opt_imax(opt_arg(), &temp))
 435                     goto opthelp;
 436                 checkoffset = (time_t)temp;
 437                 if ((intmax_t)checkoffset != temp) {
 438                     BIO_printf(bio_err, "%s: checkend time out of range %s\n",
 439                                prog, opt_arg());
 440                     goto opthelp;
 441                 }
 442             }
 443             break;
 444         case OPT_CHECKHOST:
 445             checkhost = opt_arg();
 446             break;
 447         case OPT_CHECKEMAIL:
 448             checkemail = opt_arg();
 449             break;
 450         case OPT_CHECKIP:
 451             checkip = opt_arg();
 452             break;
 453         case OPT_PRESERVE_DATES:
 454             if (days != DEF_DAYS)
 455                 goto opthelp;
 456             preserve_dates = 1;
 457             break;
 458         case OPT_MD:
 459             if (!opt_md(opt_unknown(), &digest))
 460                 goto opthelp;
 461         }
 462     }
 463     argc = opt_num_rest();
 464     argv = opt_rest();
 465     if (argc != 0) {
 466         BIO_printf(bio_err, "%s: Unknown parameter %s\n", prog, argv[0]);
 467         goto opthelp;
 468     }
 469
 470     out = bio_open_default(outfile, 'w', outformat);
 471     if (out == NULL)
 472         goto end;
 473
 474     if (!app_passwd(passinarg, NULL, &passin, NULL)) {
 475         BIO_printf(bio_err, "Error getting password\n");
 476         goto end;
 477     }
 478
 479     if (!X509_STORE_set_default_paths(ctx)) {
 480         ERR_print_errors(bio_err);
 481         goto end;
 482     }
 483
 484     if (fkeyfile != NULL) {
 485         fkey = load_pubkey(fkeyfile, keyformat, 0, NULL, e, "Forced key");
 486         if (fkey == NULL)
 487             goto end;
 488     }
 489
 490     if ((CAkeyfile == NULL) && (CA_flag) && (CAformat == FORMAT_PEM)) {
 491         CAkeyfile = CAfile;
 492     } else if ((CA_flag) && (CAkeyfile == NULL)) {
 493         BIO_printf(bio_err,
 494                    "need to specify a CAkey if using the CA command\n");
 495         goto end;
 496     }
 497
 498     if (extfile != NULL) {
 499         X509V3_CTX ctx2;
 500         if ((extconf = app_load_config(extfile)) == NULL)
 501             goto end;
 502         if (extsect == NULL) {
 503             extsect = NCONF_get_string(extconf, "default", "extensions");
 504             if (extsect == NULL) {
 505                 ERR_clear_error();
 506                 extsect = "default";
 507             }
 508         }
 509         X509V3_set_ctx_test(&ctx2);
 510         X509V3_set_nconf(&ctx2, extconf);
 511         if (!X509V3_EXT_add_nconf(extconf, &ctx2, extsect, NULL)) {
 512             BIO_printf(bio_err,
 513                        "Error Loading extension section %s\n", extsect);
 514             ERR_print_errors(bio_err);
 515             goto end;
 516         }
 517     }
 518
 519     if (reqfile) {
 520         EVP_PKEY *pkey;
 521         BIO *in;
 522
 523         if (!sign_flag && !CA_flag) {
 524             BIO_printf(bio_err, "We need a private key to sign with\n");
 525             goto end;
 526         }
 527         in = bio_open_default(infile, 'r', informat);
 528         if (in == NULL)
 529             goto end;
 530         req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL);
 531         BIO_free(in);
 532
 533         if (req == NULL) {
 534             ERR_print_errors(bio_err);
 535             goto end;
 536         }
 537
 538         if ((pkey = X509_REQ_get0_pubkey(req)) == NULL) {
 539             BIO_printf(bio_err, "error unpacking public key\n");
 540             goto end;
 541         }
 542         i = X509_REQ_verify(req, pkey);
 543         if (i < 0) {
 544             BIO_printf(bio_err, "Signature verification error\n");
 545             ERR_print_errors(bio_err);
 546             goto end;
 547         }
 548         if (i == 0) {
 549             BIO_printf(bio_err,
 550                        "Signature did not match the certificate request\n");
 551             goto end;
 552         } else {
 553             BIO_printf(bio_err, "Signature ok\n");
 554         }
 555
 556         print_name(bio_err, "subject=", X509_REQ_get_subject_name(req),
 557                    get_nameopt());
 558
 559         if ((x = X509_new()) == NULL)
 560             goto end;
 561
 562         if (sno == NULL) {
 563             sno = ASN1_INTEGER_new();
 564             if (sno == NULL || !rand_serial(NULL, sno))
 565                 goto end;
 566             if (!X509_set_serialNumber(x, sno))
 567                 goto end;
 568             ASN1_INTEGER_free(sno);
 569             sno = NULL;
 570         } else if (!X509_set_serialNumber(x, sno)) {
 571             goto end;
 572         }
 573
 574         if (!X509_set_issuer_name(x, X509_REQ_get_subject_name(req)))
 575             goto end;
 576         if (!X509_set_subject_name(x, X509_REQ_get_subject_name(req)))
 577             goto end;
 578         if (!set_cert_times(x, NULL, NULL, days))
 579             goto end;
 580
 581         if (fkey != NULL) {
 582             X509_set_pubkey(x, fkey);
 583         } else {
 584             pkey = X509_REQ_get0_pubkey(req);
 585             X509_set_pubkey(x, pkey);
 586         }
 587     } else {
 588         x = load_cert(infile, informat, "Certificate");
 589     }
 590
 591     if (x == NULL)
 592         goto end;
 593     if (CA_flag) {
 594         xca = load_cert(CAfile, CAformat, "CA Certificate");
 595         if (xca == NULL)
 596             goto end;
 597     }
 598
 599     if (!noout || text || next_serial) {
 600         OBJ_create("2.99999.3", "SET.ex3", "SET x509v3 extension 3");
 601
 602     }
 603
 604     if (alias)
 605         X509_alias_set1(x, (unsigned char *)alias, -1);
 606
 607     if (clrtrust)
 608         X509_trust_clear(x);
 609     if (clrreject)
 610         X509_reject_clear(x);
 611
 612     if (trust != NULL) {
 613         for (i = 0; i < sk_ASN1_OBJECT_num(trust); i++) {
 614             objtmp = sk_ASN1_OBJECT_value(trust, i);
 615             X509_add1_trust_object(x, objtmp);
 616         }
 617         objtmp = NULL;
 618     }
 619
 620     if (reject != NULL) {
 621         for (i = 0; i < sk_ASN1_OBJECT_num(reject); i++) {
 622             objtmp = sk_ASN1_OBJECT_value(reject, i);
 623             X509_add1_reject_object(x, objtmp);
 624         }
 625         objtmp = NULL;
 626     }
 627
 628     if (badsig) {
 629         const ASN1_BIT_STRING *signature;
 630
 631         X509_get0_signature(&signature, NULL, x);
 632         corrupt_signature(signature);
 633     }
 634
 635     if (num) {
 636         for (i = 1; i <= num; i++) {
 637             if (issuer == i) {
 638                 print_name(out, "issuer=", X509_get_issuer_name(x), get_nameopt());
 639             } else if (subject == i) {
 640                 print_name(out, "subject=",
 641                            X509_get_subject_name(x), get_nameopt());
 642             } else if (serial == i) {
 643                 BIO_printf(out, "serial=");
 644                 i2a_ASN1_INTEGER(out, X509_get_serialNumber(x));
 645                 BIO_printf(out, "\n");
 646             } else if (next_serial == i) {
 647                 ASN1_INTEGER *ser = X509_get_serialNumber(x);
 648                 BIGNUM *bnser = ASN1_INTEGER_to_BN(ser, NULL);
 649
 650                 if (!bnser)
 651                     goto end;
 652                 if (!BN_add_word(bnser, 1))
 653                     goto end;
 654                 ser = BN_to_ASN1_INTEGER(bnser, NULL);
 655                 if (!ser)
 656                     goto end;
 657                 BN_free(bnser);
 658                 i2a_ASN1_INTEGER(out, ser);
 659                 ASN1_INTEGER_free(ser);
 660                 BIO_puts(out, "\n");
 661             } else if ((email == i) || (ocsp_uri == i)) {
 662                 int j;
 663                 STACK_OF(OPENSSL_STRING) *emlst;
 664                 if (email == i)
 665                     emlst = X509_get1_email(x);
 666                 else
 667                     emlst = X509_get1_ocsp(x);
 668                 for (j = 0; j < sk_OPENSSL_STRING_num(emlst); j++)
 669                     BIO_printf(out, "%s\n",
 670                                sk_OPENSSL_STRING_value(emlst, j));
 671                 X509_email_free(emlst);
 672             } else if (aliasout == i) {
 673                 unsigned char *alstr;
 674                 alstr = X509_alias_get0(x, NULL);
 675                 if (alstr)
 676                     BIO_printf(out, "%s\n", alstr);
 677                 else
 678                     BIO_puts(out, "<No Alias>\n");
 679             } else if (subject_hash == i) {
 680                 BIO_printf(out, "%08lx\n", X509_subject_name_hash(x));
 681             }
 682 #ifndef OPENSSL_NO_MD5
 683             else if (subject_hash_old == i) {
 684                 BIO_printf(out, "%08lx\n", X509_subject_name_hash_old(x));
 685             }
 686 #endif
 687             else if (issuer_hash == i) {
 688                 BIO_printf(out, "%08lx\n", X509_issuer_name_hash(x));
 689             }
 690 #ifndef OPENSSL_NO_MD5
 691             else if (issuer_hash_old == i) {
 692                 BIO_printf(out, "%08lx\n", X509_issuer_name_hash_old(x));
 693             }
 694 #endif
 695             else if (pprint == i) {
 696                 X509_PURPOSE *ptmp;
 697                 int j;
 698                 BIO_printf(out, "Certificate purposes:\n");
 699                 for (j = 0; j < X509_PURPOSE_get_count(); j++) {
 700                     ptmp = X509_PURPOSE_get0(j);
 701                     purpose_print(out, x, ptmp);
 702                 }
 703             } else if (modulus == i) {
 704                 EVP_PKEY *pkey;
 705
 706                 pkey = X509_get0_pubkey(x);
 707                 if (pkey == NULL) {
 708                     BIO_printf(bio_err, "Modulus=unavailable\n");
 709                     ERR_print_errors(bio_err);
 710                     goto end;
 711                 }
 712                 BIO_printf(out, "Modulus=");
 713 #ifndef OPENSSL_NO_RSA
 714                 if (EVP_PKEY_id(pkey) == EVP_PKEY_RSA) {
 715                     const BIGNUM *n;
 716                     RSA_get0_key(EVP_PKEY_get0_RSA(pkey), &n, NULL, NULL);
 717                     BN_print(out, n);
 718                 } else
 719 #endif
 720 #ifndef OPENSSL_NO_DSA
 721                 if (EVP_PKEY_id(pkey) == EVP_PKEY_DSA) {
 722                     const BIGNUM *dsapub = NULL;
 723                     DSA_get0_key(EVP_PKEY_get0_DSA(pkey), &dsapub, NULL);
 724                     BN_print(out, dsapub);
 725                 } else
 726 #endif
 727                 {
 728                     BIO_printf(out, "Wrong Algorithm type");
 729                 }
 730                 BIO_printf(out, "\n");
 731             } else if (pubkey == i) {
 732                 EVP_PKEY *pkey;
 733
 734                 pkey = X509_get0_pubkey(x);
 735                 if (pkey == NULL) {
 736                     BIO_printf(bio_err, "Error getting public key\n");
 737                     ERR_print_errors(bio_err);
 738                     goto end;
 739                 }
 740                 PEM_write_bio_PUBKEY(out, pkey);
 741             } else if (C == i) {
 742                 unsigned char *d;
 743                 char *m;
 744                 int len;
 745
 746                 print_name(out, "/*\n"
 747                                 " * Subject: ", X509_get_subject_name(x), get_nameopt());
 748                 print_name(out, " * Issuer:  ", X509_get_issuer_name(x), get_nameopt());
 749                 BIO_puts(out, " */\n");
 750
 751                 len = i2d_X509(x, NULL);
 752                 m = app_malloc(len, "x509 name buffer");
 753                 d = (unsigned char *)m;
 754                 len = i2d_X509_NAME(X509_get_subject_name(x), &d);
 755                 print_array(out, "the_subject_name", len, (unsigned char *)m);
 756                 d = (unsigned char *)m;
 757                 len = i2d_X509_PUBKEY(X509_get_X509_PUBKEY(x), &d);
 758                 print_array(out, "the_public_key", len, (unsigned char *)m);
 759                 d = (unsigned char *)m;
 760                 len = i2d_X509(x, &d);
 761                 print_array(out, "the_certificate", len, (unsigned char *)m);
 762                 OPENSSL_free(m);
 763             } else if (text == i) {
 764                 X509_print_ex(out, x, get_nameopt(), certflag);
 765             } else if (startdate == i) {
 766                 BIO_puts(out, "notBefore=");
 767                 ASN1_TIME_print(out, X509_get0_notBefore(x));
 768                 BIO_puts(out, "\n");
 769             } else if (enddate == i) {
 770                 BIO_puts(out, "notAfter=");
 771                 ASN1_TIME_print(out, X509_get0_notAfter(x));
 772                 BIO_puts(out, "\n");
 773             } else if (fingerprint == i) {
 774                 int j;
 775                 unsigned int n;
 776                 unsigned char md[EVP_MAX_MD_SIZE];
 777                 const EVP_MD *fdig = digest;
 778
 779                 if (fdig == NULL)
 780                     fdig = EVP_sha1();
 781
 782                 if (!X509_digest(x, fdig, md, &n)) {
 783                     BIO_printf(bio_err, "out of memory\n");
 784                     goto end;
 785                 }
 786                 BIO_printf(out, "%s Fingerprint=",
 787                            OBJ_nid2sn(EVP_MD_type(fdig)));
 788                 for (j = 0; j < (int)n; j++) {
 789                     BIO_printf(out, "%02X%c", md[j], (j + 1 == (int)n)
 790                                ? '\n' : ':');
 791                 }
 792             }
 793
 794             /* should be in the library */
 795             else if ((sign_flag == i) && (x509req == 0)) {
 796                 BIO_printf(bio_err, "Getting Private key\n");
 797                 if (Upkey == NULL) {
 798                     Upkey = load_key(keyfile, keyformat, 0,
 799                                      passin, e, "Private key");
 800                     if (Upkey == NULL)
 801                         goto end;
 802                 }
 803
 804                 if (!sign(x, Upkey, days, clrext, digest, extconf, extsect, preserve_dates))
 805                     goto end;
 806             } else if (CA_flag == i) {
 807                 BIO_printf(bio_err, "Getting CA Private Key\n");
 808                 if (CAkeyfile != NULL) {
 809                     CApkey = load_key(CAkeyfile, CAkeyformat,
 810                                       0, passin, e, "CA Private Key");
 811                     if (CApkey == NULL)
 812                         goto end;
 813                 }
 814
 815                 if (!x509_certify(ctx, CAfile, digest, x, xca,
 816                                   CApkey, sigopts,
 817                                   CAserial, CA_createserial, days, clrext,
 818                                   extconf, extsect, sno, reqfile, preserve_dates))
 819                     goto end;
 820             } else if (x509req == i) {
 821                 EVP_PKEY *pk;
 822
 823                 BIO_printf(bio_err, "Getting request Private Key\n");
 824                 if (keyfile == NULL) {
 825                     BIO_printf(bio_err, "no request key file specified\n");
 826                     goto end;
 827                 } else {
 828                     pk = load_key(keyfile, keyformat, 0,
 829                                   passin, e, "request key");
 830                     if (pk == NULL)
 831                         goto end;
 832                 }
 833
 834                 BIO_printf(bio_err, "Generating certificate request\n");
 835
 836                 rq = X509_to_X509_REQ(x, pk, digest);
 837                 EVP_PKEY_free(pk);
 838                 if (rq == NULL) {
 839                     ERR_print_errors(bio_err);
 840                     goto end;
 841                 }
 842                 if (!noout) {
 843                     X509_REQ_print_ex(out, rq, get_nameopt(), X509_FLAG_COMPAT);
 844                     PEM_write_bio_X509_REQ(out, rq);
 845                 }
 846                 noout = 1;
 847             } else if (ocspid == i) {
 848                 X509_ocspid_print(out, x);
 849             } else if (ext == i) {
 850                 print_x509v3_exts(out, x, exts);
 851             }
 852         }
 853     }
 854
 855     if (checkend) {
 856         time_t tcheck = time(NULL) + checkoffset;
 857
 858         if (X509_cmp_time(X509_get0_notAfter(x), &tcheck) < 0) {
 859             BIO_printf(out, "Certificate will expire\n");
 860             ret = 1;
 861         } else {
 862             BIO_printf(out, "Certificate will not expire\n");
 863             ret = 0;
 864         }
 865         goto end;
 866     }
 867
 868     print_cert_checks(out, x, checkhost, checkemail, checkip);
 869
 870     if (noout || nocert) {
 871         ret = 0;
 872         goto end;
 873     }
 874
 875     if (outformat == FORMAT_ASN1) {
 876         i = i2d_X509_bio(out, x);
 877     } else if (outformat == FORMAT_PEM) {
 878         if (trustout)
 879             i = PEM_write_bio_X509_AUX(out, x);
 880         else
 881             i = PEM_write_bio_X509(out, x);
 882     } else {
 883         BIO_printf(bio_err, "bad output format specified for outfile\n");
 884         goto end;
 885     }
 886     if (!i) {
 887         BIO_printf(bio_err, "unable to write certificate\n");
 888         ERR_print_errors(bio_err);
 889         goto end;
 890     }
 891     ret = 0;
 892  end:
 893     NCONF_free(extconf);
 894     BIO_free_all(out);
 895     X509_STORE_free(ctx);
 896     X509_REQ_free(req);
 897     X509_free(x);
 898     X509_free(xca);
 899     EVP_PKEY_free(Upkey);
 900     EVP_PKEY_free(CApkey);
 901     EVP_PKEY_free(fkey);
 902     sk_OPENSSL_STRING_free(sigopts);
 903     X509_REQ_free(rq);
 904     ASN1_INTEGER_free(sno);
 905     sk_ASN1_OBJECT_pop_free(trust, ASN1_OBJECT_free);
 906     sk_ASN1_OBJECT_pop_free(reject, ASN1_OBJECT_free);
 907     ASN1_OBJECT_free(objtmp);
 908     release_engine(e);
 909     OPENSSL_free(passin);
 910     return ret;
 911 }
 912
 913 static ASN1_INTEGER *x509_load_serial(const char *CAfile,
 914                                       const char *serialfile, int create)
 915 {
 916     char *buf = NULL;
 917     ASN1_INTEGER *bs = NULL;
 918     BIGNUM *serial = NULL;
 919
 920     if (serialfile == NULL) {
 921         const char *p = strchr(CAfile, '.');
 922         size_t len = p != NULL ? (size_t)(p - CAfile) : strlen(CAfile);
 923
 924         buf = app_malloc(len + sizeof(POSTFIX), "serial# buffer");
 925         memcpy(buf, CAfile, len);
 926         memcpy(buf + len, POSTFIX, sizeof(POSTFIX));
 927         serialfile = buf;
 928     }
 929
 930     serial = load_serial(serialfile, create, NULL);
 931     if (serial == NULL)
 932         goto end;
 933
 934     if (!BN_add_word(serial, 1)) {
 935         BIO_printf(bio_err, "add_word failure\n");
 936         goto end;
 937     }
 938
 939     if (!save_serial(serialfile, NULL, serial, &bs))
 940         goto end;
 941
 942  end:
 943     OPENSSL_free(buf);
 944     BN_free(serial);
 945     return bs;
 946 }
 947
 948 static int x509_certify(X509_STORE *ctx, const char *CAfile, const EVP_MD *digest,
 949                         X509 *x, X509 *xca, EVP_PKEY *pkey,
 950                         STACK_OF(OPENSSL_STRING) *sigopts,
 951                         const char *serialfile, int create,
 952                         int days, int clrext, CONF *conf, const char *section,
 953                         ASN1_INTEGER *sno, int reqfile, int preserve_dates)
 954 {
 955     int ret = 0;
 956     ASN1_INTEGER *bs = NULL;
 957     X509_STORE_CTX *xsc = NULL;
 958     EVP_PKEY *upkey;
 959
 960     upkey = X509_get0_pubkey(xca);
 961     if (upkey == NULL) {
 962         BIO_printf(bio_err, "Error obtaining CA X509 public key\n");
 963         goto end;
 964     }
 965     EVP_PKEY_copy_parameters(upkey, pkey);
 966
 967     xsc = X509_STORE_CTX_new();
 968     if (xsc == NULL || !X509_STORE_CTX_init(xsc, ctx, x, NULL)) {
 969         BIO_printf(bio_err, "Error initialising X509 store\n");
 970         goto end;
 971     }
 972     if (sno)
 973         bs = sno;
 974     else if ((bs = x509_load_serial(CAfile, serialfile, create)) == NULL)
 975         goto end;
 976
 977     /*
 978      * NOTE: this certificate can/should be self signed, unless it was a
 979      * certificate request in which case it is not.
 980      */
 981     X509_STORE_CTX_set_cert(xsc, x);
 982     X509_STORE_CTX_set_flags(xsc, X509_V_FLAG_CHECK_SS_SIGNATURE);
 983     if (!reqfile && X509_verify_cert(xsc) <= 0)
 984         goto end;
 985
 986     if (!X509_check_private_key(xca, pkey)) {
 987         BIO_printf(bio_err,
 988                    "CA certificate and CA private key do not match\n");
 989         goto end;
 990     }
 991
 992     if (!X509_set_issuer_name(x, X509_get_subject_name(xca)))
 993         goto end;
 994     if (!X509_set_serialNumber(x, bs))
 995         goto end;
 996
 997     if (!preserve_dates && !set_cert_times(x, NULL, NULL, days))
 998         goto end;
 999
1000     if (clrext) {
1001         while (X509_get_ext_count(x) > 0)
1002             X509_delete_ext(x, 0);
1003     }
1004
1005     if (conf != NULL) {
1006         X509V3_CTX ctx2;
1007         X509_set_version(x, 2); /* version 3 certificate */
1008         X509V3_set_ctx(&ctx2, xca, x, NULL, NULL, 0);
1009         X509V3_set_nconf(&ctx2, conf);
1010         if (!X509V3_EXT_add_nconf(conf, &ctx2, section, x))
1011             goto end;
1012     }
1013
1014     if (!do_X509_sign(x, pkey, digest, sigopts))
1015         goto end;
1016     ret = 1;
1017  end:
1018     X509_STORE_CTX_free(xsc);
1019     if (!ret)
1020         ERR_print_errors(bio_err);
1021     if (!sno)
1022         ASN1_INTEGER_free(bs);
1023     return ret;
1024 }
1025
1026 static int callb(int ok, X509_STORE_CTX *ctx)
1027 {
1028     int err;
1029     X509 *err_cert;
1030
1031     /*
1032      * it is ok to use a self signed certificate This case will catch both
1033      * the initial ok == 0 and the final ok == 1 calls to this function
1034      */
1035     err = X509_STORE_CTX_get_error(ctx);
1036     if (err == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT)
1037         return 1;
1038
1039     /*
1040      * BAD we should have gotten an error.  Normally if everything worked
1041      * X509_STORE_CTX_get_error(ctx) will still be set to
1042      * DEPTH_ZERO_SELF_....
1043      */
1044     if (ok) {
1045         BIO_printf(bio_err,
1046                    "error with certificate to be certified - should be self signed\n");
1047         return 0;
1048     } else {
1049         err_cert = X509_STORE_CTX_get_current_cert(ctx);
1050         print_name(bio_err, NULL, X509_get_subject_name(err_cert), 0);
1051         BIO_printf(bio_err,
1052                    "error with certificate - error %d at depth %d\n%s\n", err,
1053                    X509_STORE_CTX_get_error_depth(ctx),
1054                    X509_verify_cert_error_string(err));
1055         return 1;
1056     }
1057 }
1058
1059 /* self sign */
1060 static int sign(X509 *x, EVP_PKEY *pkey, int days, int clrext,
1061                 const EVP_MD *digest, CONF *conf, const char *section,
1062                 int preserve_dates)
1063 {
1064
1065     if (!X509_set_issuer_name(x, X509_get_subject_name(x)))
1066         goto err;
1067     if (!preserve_dates && !set_cert_times(x, NULL, NULL, days))
1068         goto err;
1069     if (!X509_set_pubkey(x, pkey))
1070         goto err;
1071     if (clrext) {
1072         while (X509_get_ext_count(x) > 0)
1073             X509_delete_ext(x, 0);
1074     }
1075     if (conf != NULL) {
1076         X509V3_CTX ctx;
1077         X509_set_version(x, 2); /* version 3 certificate */
1078         X509V3_set_ctx(&ctx, x, x, NULL, NULL, 0);
1079         X509V3_set_nconf(&ctx, conf);
1080         if (!X509V3_EXT_add_nconf(conf, &ctx, section, x))
1081             goto err;
1082     }
1083     if (!X509_sign(x, pkey, digest))
1084         goto err;
1085     return 1;
1086  err:
1087     ERR_print_errors(bio_err);
1088     return 0;
1089 }
1090
1091 static int purpose_print(BIO *bio, X509 *cert, X509_PURPOSE *pt)
1092 {
1093     int id, i, idret;
1094     const char *pname;
1095     id = X509_PURPOSE_get_id(pt);
1096     pname = X509_PURPOSE_get0_name(pt);
1097     for (i = 0; i < 2; i++) {
1098         idret = X509_check_purpose(cert, id, i);
1099         BIO_printf(bio, "%s%s : ", pname, i ? " CA" : "");
1100         if (idret == 1)
1101             BIO_printf(bio, "Yes\n");
1102         else if (idret == 0)
1103             BIO_printf(bio, "No\n");
1104         else
1105             BIO_printf(bio, "Yes (WARNING code=%d)\n", idret);
1106     }
1107     return 1;
1108 }
1109
1110 static int parse_ext_names(char *names, const char **result)
1111 {
1112     char *p, *q;
1113     int cnt = 0, len = 0;
1114
1115     p = q = names;
1116     len = strlen(names);
1117
1118     while (q - names <= len) {
1119         if (*q != ',' && *q != '\0') {
1120             q++;
1121             continue;
1122         }
1123         if (p != q) {
1124             /* found */
1125             if (result != NULL) {
1126                 result[cnt] = p;
1127                 *q = '\0';
1128             }
1129             cnt++;
1130         }
1131         p = ++q;
1132     }
1133
1134     return cnt;
1135 }
1136
1137 static int print_x509v3_exts(BIO *bio, X509 *x, const char *ext_names)
1138 {
1139     const STACK_OF(X509_EXTENSION) *exts = NULL;
1140     STACK_OF(X509_EXTENSION) *exts2 = NULL;
1141     X509_EXTENSION *ext = NULL;
1142     ASN1_OBJECT *obj;
1143     int i, j, ret = 0, num, nn = 0;
1144     const char *sn, **names = NULL;
1145     char *tmp_ext_names = NULL;
1146
1147     exts = X509_get0_extensions(x);
1148     if ((num = sk_X509_EXTENSION_num(exts)) <= 0) {
1149         BIO_printf(bio, "No extensions in certificate\n");
1150         ret = 1;
1151         goto end;
1152     }
1153
1154     /* parse comma separated ext name string */
1155     if ((tmp_ext_names = OPENSSL_strdup(ext_names)) == NULL)
1156         goto end;
1157     if ((nn = parse_ext_names(tmp_ext_names, NULL)) == 0) {
1158         BIO_printf(bio, "Invalid extension names: %s\n", ext_names);
1159         goto end;
1160     }
1161     if ((names = OPENSSL_malloc(sizeof(char *) * nn)) == NULL)
1162         goto end;
1163     parse_ext_names(tmp_ext_names, names);
1164
1165     for (i = 0; i < num; i++) {
1166         ext = sk_X509_EXTENSION_value(exts, i);
1167
1168         /* check if this ext is what we want */
1169         obj = X509_EXTENSION_get_object(ext);
1170         sn = OBJ_nid2sn(OBJ_obj2nid(obj));
1171         if (sn == NULL || strcmp(sn, "UNDEF") == 0)
1172             continue;
1173
1174         for (j = 0; j < nn; j++) {
1175             if (strcmp(sn, names[j]) == 0) {
1176                 /* push the extension into a new stack */
1177                 if (exts2 == NULL
1178                     && (exts2 = sk_X509_EXTENSION_new_null()) == NULL)
1179                     goto end;
1180                 if (!sk_X509_EXTENSION_push(exts2, ext))
1181                     goto end;
1182             }
1183         }
1184     }
1185
1186     if (!sk_X509_EXTENSION_num(exts2)) {
1187         BIO_printf(bio, "No extensions matched with %s\n", ext_names);
1188         ret = 1;
1189         goto end;
1190     }
1191
1192     ret = X509V3_extensions_print(bio, NULL, exts2, 0, 0);
1193  end:
1194     sk_X509_EXTENSION_free(exts2);
1195     OPENSSL_free(names);
1196     OPENSSL_free(tmp_ext_names);
1197     return ret;
1198 }