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