apps/req.c

   1 /* apps/req.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58
  59 #include <stdio.h>
  60 #include <stdlib.h>
  61 #include <time.h>
  62 #include <string.h>
  63 #ifdef NO_STDIO
  64 #define APPS_WIN16
  65 #endif
  66 #include "apps.h"
  67 #include <openssl/bio.h>
  68 #include <openssl/evp.h>
  69 #include <openssl/conf.h>
  70 #include <openssl/err.h>
  71 #include <openssl/asn1.h>
  72 #include <openssl/x509.h>
  73 #include <openssl/x509v3.h>
  74 #include <openssl/objects.h>
  75 #include <openssl/pem.h>
  76 #include <openssl/engine.h>
  77
  78 #define SECTION         "req"
  79
  80 #define BITS            "default_bits"
  81 #define KEYFILE         "default_keyfile"
  82 #define PROMPT          "prompt"
  83 #define DISTINGUISHED_NAME      "distinguished_name"
  84 #define ATTRIBUTES      "attributes"
  85 #define V3_EXTENSIONS   "x509_extensions"
  86 #define REQ_EXTENSIONS  "req_extensions"
  87 #define STRING_MASK     "string_mask"
  88
  89 #define DEFAULT_KEY_LENGTH      512
  90 #define MIN_KEY_LENGTH          384
  91
  92 #undef PROG
  93 #define PROG    req_main
  94
  95 /* -inform arg  - input format - default PEM (DER or PEM)
  96  * -outform arg - output format - default PEM
  97  * -in arg      - input file - default stdin
  98  * -out arg     - output file - default stdout
  99  * -verify      - check request signature
 100  * -noout       - don't print stuff out.
 101  * -text        - print out human readable text.
 102  * -nodes       - no des encryption
 103  * -config file - Load configuration file.
 104  * -key file    - make a request using key in file (or use it for verification).
 105  * -keyform     - key file format.
 106  * -rand file(s) - load the file(s) into the PRNG.
 107  * -newkey      - make a key and a request.
 108  * -modulus     - print RSA modulus.
 109  * -x509        - output a self signed X509 structure instead.
 110  * -asn1-kludge - output new certificate request in a format that some CA's
 111  *                require.  This format is wrong
 112  */
 113
 114 static int make_REQ(X509_REQ *req,EVP_PKEY *pkey,int attribs);
 115 static int prompt_info(X509_REQ *req,
 116                 STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
 117                 STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect, int attribs);
 118 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *sk,
 119                                 STACK_OF(CONF_VALUE) *attr, int attribs);
 120 static int add_attribute_object(X509_REQ *req, char *text,
 121                                 char *def, char *value, int nid, int min,
 122                                 int max);
 123 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
 124         int nid,int min,int max);
 125 #ifndef NO_RSA
 126 static void MS_CALLBACK req_cb(int p,int n,void *arg);
 127 #endif
 128 static int req_check_len(int len,int min,int max);
 129 static int check_end(char *str, char *end);
 130 #ifndef MONOLITH
 131 static char *default_config_file=NULL;
 132 static LHASH *config=NULL;
 133 #endif
 134 static LHASH *req_conf=NULL;
 135
 136 #define TYPE_RSA        1
 137 #define TYPE_DSA        2
 138 #define TYPE_DH         3
 139
 140 int MAIN(int, char **);
 141
 142 int MAIN(int argc, char **argv)
 143         {
 144         ENGINE *e = NULL;
 145 #ifndef NO_DSA
 146         DSA *dsa_params=NULL;
 147 #endif
 148         unsigned long nmflag = 0;
 149         int ex=1,x509=0,days=30;
 150         X509 *x509ss=NULL;
 151         X509_REQ *req=NULL;
 152         EVP_PKEY *pkey=NULL;
 153         int i,badops=0,newreq=0,newkey= -1,pkey_type=0;
 154         BIO *in=NULL,*out=NULL;
 155         int informat,outformat,verify=0,noout=0,text=0,keyform=FORMAT_PEM;
 156         int nodes=0,kludge=0,newhdr=0,subject=0;
 157         char *infile,*outfile,*prog,*keyfile=NULL,*template=NULL,*keyout=NULL;
 158         char *engine=NULL;
 159         char *extensions = NULL;
 160         char *req_exts = NULL;
 161         EVP_CIPHER *cipher=NULL;
 162         int modulus=0;
 163         char *inrand=NULL;
 164         char *passargin = NULL, *passargout = NULL;
 165         char *passin = NULL, *passout = NULL;
 166         char *p;
 167         const EVP_MD *md_alg=NULL,*digest=EVP_md5();
 168 #ifndef MONOLITH
 169         MS_STATIC char config_name[256];
 170 #endif
 171
 172         req_conf = NULL;
 173 #ifndef NO_DES
 174         cipher=EVP_des_ede3_cbc();
 175 #endif
 176         apps_startup();
 177
 178         if (bio_err == NULL)
 179                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 180                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 181
 182         infile=NULL;
 183         outfile=NULL;
 184         informat=FORMAT_PEM;
 185         outformat=FORMAT_PEM;
 186
 187         prog=argv[0];
 188         argc--;
 189         argv++;
 190         while (argc >= 1)
 191                 {
 192                 if      (strcmp(*argv,"-inform") == 0)
 193                         {
 194                         if (--argc < 1) goto bad;
 195                         informat=str2fmt(*(++argv));
 196                         }
 197                 else if (strcmp(*argv,"-outform") == 0)
 198                         {
 199                         if (--argc < 1) goto bad;
 200                         outformat=str2fmt(*(++argv));
 201                         }
 202                 else if (strcmp(*argv,"-engine") == 0)
 203                         {
 204                         if (--argc < 1) goto bad;
 205                         engine= *(++argv);
 206                         }
 207                 else if (strcmp(*argv,"-key") == 0)
 208                         {
 209                         if (--argc < 1) goto bad;
 210                         keyfile= *(++argv);
 211                         }
 212                 else if (strcmp(*argv,"-new") == 0)
 213                         {
 214                         pkey_type=TYPE_RSA;
 215                         newreq=1;
 216                         }
 217                 else if (strcmp(*argv,"-config") == 0)
 218                         {
 219                         if (--argc < 1) goto bad;
 220                         template= *(++argv);
 221                         }
 222                 else if (strcmp(*argv,"-keyform") == 0)
 223                         {
 224                         if (--argc < 1) goto bad;
 225                         keyform=str2fmt(*(++argv));
 226                         }
 227                 else if (strcmp(*argv,"-in") == 0)
 228                         {
 229                         if (--argc < 1) goto bad;
 230                         infile= *(++argv);
 231                         }
 232                 else if (strcmp(*argv,"-out") == 0)
 233                         {
 234                         if (--argc < 1) goto bad;
 235                         outfile= *(++argv);
 236                         }
 237                 else if (strcmp(*argv,"-keyout") == 0)
 238                         {
 239                         if (--argc < 1) goto bad;
 240                         keyout= *(++argv);
 241                         }
 242                 else if (strcmp(*argv,"-passin") == 0)
 243                         {
 244                         if (--argc < 1) goto bad;
 245                         passargin= *(++argv);
 246                         }
 247                 else if (strcmp(*argv,"-passout") == 0)
 248                         {
 249                         if (--argc < 1) goto bad;
 250                         passargout= *(++argv);
 251                         }
 252                 else if (strcmp(*argv,"-rand") == 0)
 253                         {
 254                         if (--argc < 1) goto bad;
 255                         inrand= *(++argv);
 256                         }
 257                 else if (strcmp(*argv,"-newkey") == 0)
 258                         {
 259                         int is_numeric;
 260
 261                         if (--argc < 1) goto bad;
 262                         p= *(++argv);
 263                         is_numeric = p[0] >= '0' && p[0] <= '9';
 264                         if (strncmp("rsa:",p,4) == 0 || is_numeric)
 265                                 {
 266                                 pkey_type=TYPE_RSA;
 267                                 if(!is_numeric)
 268                                     p+=4;
 269                                 newkey= atoi(p);
 270                                 }
 271                         else
 272 #ifndef NO_DSA
 273                                 if (strncmp("dsa:",p,4) == 0)
 274                                 {
 275                                 X509 *xtmp=NULL;
 276                                 EVP_PKEY *dtmp;
 277
 278                                 pkey_type=TYPE_DSA;
 279                                 p+=4;
 280                                 if ((in=BIO_new_file(p,"r")) == NULL)
 281                                         {
 282                                         perror(p);
 283                                         goto end;
 284                                         }
 285                                 if ((dsa_params=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL)
 286                                         {
 287                                         ERR_clear_error();
 288                                         (void)BIO_reset(in);
 289                                         if ((xtmp=PEM_read_bio_X509(in,NULL,NULL,NULL)) == NULL)
 290                                                 {
 291                                                 BIO_printf(bio_err,"unable to load DSA parameters from file\n");
 292                                                 goto end;
 293                                                 }
 294
 295                                         dtmp=X509_get_pubkey(xtmp);
 296                                         if (dtmp->type == EVP_PKEY_DSA)
 297                                                 dsa_params=DSAparams_dup(dtmp->pkey.dsa);
 298                                         EVP_PKEY_free(dtmp);
 299                                         X509_free(xtmp);
 300                                         if (dsa_params == NULL)
 301                                                 {
 302                                                 BIO_printf(bio_err,"Certificate does not contain DSA parameters\n");
 303                                                 goto end;
 304                                                 }
 305                                         }
 306                                 BIO_free(in);
 307                                 newkey=BN_num_bits(dsa_params->p);
 308                                 in=NULL;
 309                                 }
 310                         else
 311 #endif
 312 #ifndef NO_DH
 313                                 if (strncmp("dh:",p,4) == 0)
 314                                 {
 315                                 pkey_type=TYPE_DH;
 316                                 p+=3;
 317                                 }
 318                         else
 319 #endif
 320                                 pkey_type=TYPE_RSA;
 321
 322                         newreq=1;
 323                         }
 324                 else if (strcmp(*argv,"-newhdr") == 0)
 325                         newhdr=1;
 326                 else if (strcmp(*argv,"-modulus") == 0)
 327                         modulus=1;
 328                 else if (strcmp(*argv,"-verify") == 0)
 329                         verify=1;
 330                 else if (strcmp(*argv,"-nodes") == 0)
 331                         nodes=1;
 332                 else if (strcmp(*argv,"-noout") == 0)
 333                         noout=1;
 334                 else if (strcmp(*argv,"-nameopt") == 0)
 335                         {
 336                         if (--argc < 1) goto bad;
 337                         if (!set_name_ex(&nmflag, *(++argv))) goto bad;
 338                         }
 339                 else if (strcmp(*argv,"-subject") == 0)
 340                         subject=1;
 341                 else if (strcmp(*argv,"-text") == 0)
 342                         text=1;
 343                 else if (strcmp(*argv,"-x509") == 0)
 344                         x509=1;
 345                 else if (strcmp(*argv,"-asn1-kludge") == 0)
 346                         kludge=1;
 347                 else if (strcmp(*argv,"-no-asn1-kludge") == 0)
 348                         kludge=0;
 349                 else if (strcmp(*argv,"-days") == 0)
 350                         {
 351                         if (--argc < 1) goto bad;
 352                         days= atoi(*(++argv));
 353                         if (days == 0) days=30;
 354                         }
 355                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
 356                         {
 357                         /* ok */
 358                         digest=md_alg;
 359                         }
 360                 else if (strcmp(*argv,"-extensions") == 0)
 361                         {
 362                         if (--argc < 1) goto bad;
 363                         extensions = *(++argv);
 364                         }
 365                 else if (strcmp(*argv,"-reqexts") == 0)
 366                         {
 367                         if (--argc < 1) goto bad;
 368                         req_exts = *(++argv);
 369                         }
 370                 else
 371                         {
 372                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 373                         badops=1;
 374                         break;
 375                         }
 376                 argc--;
 377                 argv++;
 378                 }
 379
 380         if (badops)
 381                 {
 382 bad:
 383                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
 384                 BIO_printf(bio_err,"where options  are\n");
 385                 BIO_printf(bio_err," -inform arg    input format - DER or PEM\n");
 386                 BIO_printf(bio_err," -outform arg   output format - DER or PEM\n");
 387                 BIO_printf(bio_err," -in arg        input file\n");
 388                 BIO_printf(bio_err," -out arg       output file\n");
 389                 BIO_printf(bio_err," -text          text form of request\n");
 390                 BIO_printf(bio_err," -noout         do not output REQ\n");
 391                 BIO_printf(bio_err," -verify        verify signature on REQ\n");
 392                 BIO_printf(bio_err," -modulus       RSA modulus\n");
 393                 BIO_printf(bio_err," -nodes         don't encrypt the output key\n");
 394                 BIO_printf(bio_err," -engine e      use engine e, possibly a hardware device.\n");
 395                 BIO_printf(bio_err," -key file  use the private key contained in file\n");
 396                 BIO_printf(bio_err," -keyform arg   key file format\n");
 397                 BIO_printf(bio_err," -keyout arg    file to send the key to\n");
 398                 BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 399                 BIO_printf(bio_err,"                load the file (or the files in the directory) into\n");
 400                 BIO_printf(bio_err,"                the random number generator\n");
 401                 BIO_printf(bio_err," -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
 402                 BIO_printf(bio_err," -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
 403
 404                 BIO_printf(bio_err," -[digest]      Digest to sign with (md5, sha1, md2, mdc2)\n");
 405                 BIO_printf(bio_err," -config file   request template file.\n");
 406                 BIO_printf(bio_err," -new           new request.\n");
 407                 BIO_printf(bio_err," -x509          output a x509 structure instead of a cert. req.\n");
 408                 BIO_printf(bio_err," -days          number of days a x509 generated by -x509 is valid for.\n");
 409                 BIO_printf(bio_err," -newhdr        output \"NEW\" in the header lines\n");
 410                 BIO_printf(bio_err," -asn1-kludge   Output the 'request' in a format that is wrong but some CA's\n");
 411                 BIO_printf(bio_err,"                have been reported as requiring\n");
 412                 BIO_printf(bio_err," -extensions .. specify certificate extension section (override value in config file)\n");
 413                 BIO_printf(bio_err," -reqexts ..    specify request extension section (override value in config file)\n");
 414                 goto end;
 415                 }
 416
 417         ERR_load_crypto_strings();
 418         if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
 419                 BIO_printf(bio_err, "Error getting passwords\n");
 420                 goto end;
 421         }
 422
 423 #ifndef MONOLITH /* else this has happened in openssl.c (global `config') */
 424         /* Lets load up our environment a little */
 425         p=getenv("OPENSSL_CONF");
 426         if (p == NULL)
 427                 p=getenv("SSLEAY_CONF");
 428         if (p == NULL)
 429                 {
 430                 strcpy(config_name,X509_get_default_cert_area());
 431 #ifndef VMS
 432                 strcat(config_name,"/");
 433 #endif
 434                 strcat(config_name,OPENSSL_CONF);
 435                 p=config_name;
 436                 }
 437         default_config_file=p;
 438         config=CONF_load(config,p,NULL);
 439 #endif
 440
 441         if (template != NULL)
 442                 {
 443                 long errline;
 444
 445                 BIO_printf(bio_err,"Using configuration from %s\n",template);
 446                 req_conf=CONF_load(NULL,template,&errline);
 447                 if (req_conf == NULL)
 448                         {
 449                         BIO_printf(bio_err,"error on line %ld of %s\n",errline,template);
 450                         goto end;
 451                         }
 452                 }
 453         else
 454                 {
 455                 req_conf=config;
 456                 BIO_printf(bio_err,"Using configuration from %s\n",
 457                         default_config_file);
 458                 if (req_conf == NULL)
 459                         {
 460                         BIO_printf(bio_err,"Unable to load config info\n");
 461                         }
 462                 }
 463
 464         if (req_conf != NULL)
 465                 {
 466                 p=CONF_get_string(req_conf,NULL,"oid_file");
 467                 if (p != NULL)
 468                         {
 469                         BIO *oid_bio;
 470
 471                         oid_bio=BIO_new_file(p,"r");
 472                         if (oid_bio == NULL)
 473                                 {
 474                                 /*
 475                                 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
 476                                 ERR_print_errors(bio_err);
 477                                 */
 478                                 }
 479                         else
 480                                 {
 481                                 OBJ_create_objects(oid_bio);
 482                                 BIO_free(oid_bio);
 483                                 }
 484                         }
 485                 }
 486                 if(!add_oid_section(bio_err, req_conf)) goto end;
 487
 488         if ((md_alg == NULL) &&
 489                 ((p=CONF_get_string(req_conf,SECTION,"default_md")) != NULL))
 490                 {
 491                 if ((md_alg=EVP_get_digestbyname(p)) != NULL)
 492                         digest=md_alg;
 493                 }
 494
 495         if(!extensions)
 496                 extensions = CONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
 497         if(extensions) {
 498                 /* Check syntax of file */
 499                 X509V3_CTX ctx;
 500                 X509V3_set_ctx_test(&ctx);
 501                 X509V3_set_conf_lhash(&ctx, req_conf);
 502                 if(!X509V3_EXT_add_conf(req_conf, &ctx, extensions, NULL)) {
 503                         BIO_printf(bio_err,
 504                          "Error Loading extension section %s\n", extensions);
 505                         goto end;
 506                 }
 507         }
 508
 509         if(!passin)
 510                 passin = CONF_get_string(req_conf, SECTION, "input_password");
 511
 512         if(!passout)
 513                 passout = CONF_get_string(req_conf, SECTION, "output_password");
 514
 515         p = CONF_get_string(req_conf, SECTION, STRING_MASK);
 516
 517         if(p && !ASN1_STRING_set_default_mask_asc(p)) {
 518                 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
 519                 goto end;
 520         }
 521
 522         if(!req_exts)
 523                 req_exts = CONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
 524         if(req_exts) {
 525                 /* Check syntax of file */
 526                 X509V3_CTX ctx;
 527                 X509V3_set_ctx_test(&ctx);
 528                 X509V3_set_conf_lhash(&ctx, req_conf);
 529                 if(!X509V3_EXT_add_conf(req_conf, &ctx, req_exts, NULL)) {
 530                         BIO_printf(bio_err,
 531                          "Error Loading request extension section %s\n",
 532                                                                 req_exts);
 533                         goto end;
 534                 }
 535         }
 536
 537         in=BIO_new(BIO_s_file());
 538         out=BIO_new(BIO_s_file());
 539         if ((in == NULL) || (out == NULL))
 540                 goto end;
 541
 542         if (engine != NULL)
 543                 {
 544                 if((e = ENGINE_by_id(engine)) == NULL)
 545                         {
 546                         BIO_printf(bio_err,"invalid engine \"%s\"\n",
 547                                 engine);
 548                         goto end;
 549                         }
 550                 if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
 551                         {
 552                         BIO_printf(bio_err,"can't use that engine\n");
 553                         goto end;
 554                         }
 555                 BIO_printf(bio_err,"engine \"%s\" set.\n", engine);
 556                 /* Free our "structural" reference. */
 557                 ENGINE_free(e);
 558                 }
 559
 560         if (keyfile != NULL)
 561                 {
 562                 if (keyform == FORMAT_ENGINE)
 563                         {
 564                         if (!e)
 565                                 {
 566                                 BIO_printf(bio_err,"no engine specified\n");
 567                                 goto end;
 568                                 }
 569                         pkey = ENGINE_load_private_key(e, keyfile, NULL);
 570                         }
 571                 else
 572                         {
 573                         if (BIO_read_filename(in,keyfile) <= 0)
 574                                 {
 575                                 perror(keyfile);
 576                                 goto end;
 577                                 }
 578
 579                         if (keyform == FORMAT_ASN1)
 580                                 pkey=d2i_PrivateKey_bio(in,NULL);
 581                         else if (keyform == FORMAT_PEM)
 582                                 {
 583                                 pkey=PEM_read_bio_PrivateKey(in,NULL,NULL,
 584                                         passin);
 585                                 }
 586                         else
 587                                 {
 588                                 BIO_printf(bio_err,"bad input format specified for X509 request\n");
 589                                 goto end;
 590                                 }
 591                         }
 592
 593                 if (pkey == NULL)
 594                         {
 595                         BIO_printf(bio_err,"unable to load Private key\n");
 596                         goto end;
 597                         }
 598                 if (EVP_PKEY_type(pkey->type) == EVP_PKEY_DSA)
 599                         {
 600                         char *randfile = CONF_get_string(req_conf,SECTION,"RANDFILE");
 601                         app_RAND_load_file(randfile, bio_err, 0);
 602                         }
 603                 }
 604
 605         if (newreq && (pkey == NULL))
 606                 {
 607                 char *randfile = CONF_get_string(req_conf,SECTION,"RANDFILE");
 608                 app_RAND_load_file(randfile, bio_err, 0);
 609                 if (inrand)
 610                         app_RAND_load_files(inrand);
 611
 612                 if (newkey <= 0)
 613                         {
 614                         newkey=(int)CONF_get_number(req_conf,SECTION,BITS);
 615                         if (newkey <= 0)
 616                                 newkey=DEFAULT_KEY_LENGTH;
 617                         }
 618
 619                 if (newkey < MIN_KEY_LENGTH)
 620                         {
 621                         BIO_printf(bio_err,"private key length is too short,\n");
 622                         BIO_printf(bio_err,"it needs to be at least %d bits, not %d\n",MIN_KEY_LENGTH,newkey);
 623                         goto end;
 624                         }
 625                 BIO_printf(bio_err,"Generating a %d bit %s private key\n",
 626                         newkey,(pkey_type == TYPE_RSA)?"RSA":"DSA");
 627
 628                 if ((pkey=EVP_PKEY_new()) == NULL) goto end;
 629
 630 #ifndef NO_RSA
 631                 if (pkey_type == TYPE_RSA)
 632                         {
 633                         if (!EVP_PKEY_assign_RSA(pkey,
 634                                 RSA_generate_key(newkey,0x10001,
 635                                         req_cb,bio_err)))
 636                                 goto end;
 637                         }
 638                 else
 639 #endif
 640 #ifndef NO_DSA
 641                         if (pkey_type == TYPE_DSA)
 642                         {
 643                         if (!DSA_generate_key(dsa_params)) goto end;
 644                         if (!EVP_PKEY_assign_DSA(pkey,dsa_params)) goto end;
 645                         dsa_params=NULL;
 646                         }
 647 #endif
 648
 649                 app_RAND_write_file(randfile, bio_err);
 650
 651                 if (pkey == NULL) goto end;
 652
 653                 if (keyout == NULL)
 654                         keyout=CONF_get_string(req_conf,SECTION,KEYFILE);
 655
 656                 if (keyout == NULL)
 657                         {
 658                         BIO_printf(bio_err,"writing new private key to stdout\n");
 659                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
 660 #ifdef VMS
 661                         {
 662                         BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 663                         out = BIO_push(tmpbio, out);
 664                         }
 665 #endif
 666                         }
 667                 else
 668                         {
 669                         BIO_printf(bio_err,"writing new private key to '%s'\n",keyout);
 670                         if (BIO_write_filename(out,keyout) <= 0)
 671                                 {
 672                                 perror(keyout);
 673                                 goto end;
 674                                 }
 675                         }
 676
 677                 p=CONF_get_string(req_conf,SECTION,"encrypt_rsa_key");
 678                 if (p == NULL)
 679                         p=CONF_get_string(req_conf,SECTION,"encrypt_key");
 680                 if ((p != NULL) && (strcmp(p,"no") == 0))
 681                         cipher=NULL;
 682                 if (nodes) cipher=NULL;
 683
 684                 i=0;
 685 loop:
 686                 if (!PEM_write_bio_PrivateKey(out,pkey,cipher,
 687                         NULL,0,NULL,passout))
 688                         {
 689                         if ((ERR_GET_REASON(ERR_peek_error()) ==
 690                                 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3))
 691                                 {
 692                                 ERR_clear_error();
 693                                 i++;
 694                                 goto loop;
 695                                 }
 696                         goto end;
 697                         }
 698                 BIO_printf(bio_err,"-----\n");
 699                 }
 700
 701         if (!newreq)
 702                 {
 703                 /* Since we are using a pre-existing certificate
 704                  * request, the kludge 'format' info should not be
 705                  * changed. */
 706                 kludge= -1;
 707                 if (infile == NULL)
 708                         BIO_set_fp(in,stdin,BIO_NOCLOSE);
 709                 else
 710                         {
 711                         if (BIO_read_filename(in,infile) <= 0)
 712                                 {
 713                                 perror(infile);
 714                                 goto end;
 715                                 }
 716                         }
 717
 718                 if      (informat == FORMAT_ASN1)
 719                         req=d2i_X509_REQ_bio(in,NULL);
 720                 else if (informat == FORMAT_PEM)
 721                         req=PEM_read_bio_X509_REQ(in,NULL,NULL,NULL);
 722                 else
 723                         {
 724                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
 725                         goto end;
 726                         }
 727                 if (req == NULL)
 728                         {
 729                         BIO_printf(bio_err,"unable to load X509 request\n");
 730                         goto end;
 731                         }
 732                 }
 733
 734         if (newreq || x509)
 735                 {
 736 #ifndef NO_DSA
 737                 if (pkey->type == EVP_PKEY_DSA)
 738                         digest=EVP_dss1();
 739 #endif
 740
 741                 if (pkey == NULL)
 742                         {
 743                         BIO_printf(bio_err,"you need to specify a private key\n");
 744                         goto end;
 745                         }
 746                 if (req == NULL)
 747                         {
 748                         req=X509_REQ_new();
 749                         if (req == NULL)
 750                                 {
 751                                 goto end;
 752                                 }
 753
 754                         i=make_REQ(req,pkey,!x509);
 755                         if (kludge >= 0)
 756                                 req->req_info->req_kludge=kludge;
 757                         if (!i)
 758                                 {
 759                                 BIO_printf(bio_err,"problems making Certificate Request\n");
 760                                 goto end;
 761                                 }
 762                         }
 763                 if (x509)
 764                         {
 765                         EVP_PKEY *tmppkey;
 766                         X509V3_CTX ext_ctx;
 767                         if ((x509ss=X509_new()) == NULL) goto end;
 768
 769                         /* Set version to V3 */
 770                         if(!X509_set_version(x509ss, 2)) goto end;
 771                         ASN1_INTEGER_set(X509_get_serialNumber(x509ss),0L);
 772
 773                         X509_set_issuer_name(x509ss,
 774                                 X509_REQ_get_subject_name(req));
 775                         X509_gmtime_adj(X509_get_notBefore(x509ss),0);
 776                         X509_gmtime_adj(X509_get_notAfter(x509ss),
 777                                 (long)60*60*24*days);
 778                         X509_set_subject_name(x509ss,
 779                                 X509_REQ_get_subject_name(req));
 780                         tmppkey = X509_REQ_get_pubkey(req);
 781                         X509_set_pubkey(x509ss,tmppkey);
 782                         EVP_PKEY_free(tmppkey);
 783
 784                         /* Set up V3 context struct */
 785
 786                         X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
 787                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
 788
 789                         /* Add extensions */
 790                         if(extensions && !X509V3_EXT_add_conf(req_conf,
 791                                         &ext_ctx, extensions, x509ss))
 792                             {
 793                             BIO_printf(bio_err,
 794                                        "Error Loading extension section %s\n",
 795                                        extensions);
 796                             goto end;
 797                             }
 798
 799                         if (!(i=X509_sign(x509ss,pkey,digest)))
 800                                 goto end;
 801                         }
 802                 else
 803                         {
 804                         X509V3_CTX ext_ctx;
 805
 806                         /* Set up V3 context struct */
 807
 808                         X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
 809                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
 810
 811                         /* Add extensions */
 812                         if(req_exts && !X509V3_EXT_REQ_add_conf(req_conf,
 813                                         &ext_ctx, req_exts, req))
 814                             {
 815                             BIO_printf(bio_err,
 816                                        "Error Loading extension section %s\n",
 817                                        req_exts);
 818                             goto end;
 819                             }
 820                         if (!(i=X509_REQ_sign(req,pkey,digest)))
 821                                 goto end;
 822                         }
 823                 }
 824
 825         if (verify && !x509)
 826                 {
 827                 int tmp=0;
 828
 829                 if (pkey == NULL)
 830                         {
 831                         pkey=X509_REQ_get_pubkey(req);
 832                         tmp=1;
 833                         if (pkey == NULL) goto end;
 834                         }
 835
 836                 i=X509_REQ_verify(req,pkey);
 837                 if (tmp) {
 838                         EVP_PKEY_free(pkey);
 839                         pkey=NULL;
 840                 }
 841
 842                 if (i < 0)
 843                         {
 844                         goto end;
 845                         }
 846                 else if (i == 0)
 847                         {
 848                         BIO_printf(bio_err,"verify failure\n");
 849                         }
 850                 else /* if (i > 0) */
 851                         BIO_printf(bio_err,"verify OK\n");
 852                 }
 853
 854         if (noout && !text && !modulus && !subject)
 855                 {
 856                 ex=0;
 857                 goto end;
 858                 }
 859
 860         if (outfile == NULL)
 861                 {
 862                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
 863 #ifdef VMS
 864                 {
 865                 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 866                 out = BIO_push(tmpbio, out);
 867                 }
 868 #endif
 869                 }
 870         else
 871                 {
 872                 if ((keyout != NULL) && (strcmp(outfile,keyout) == 0))
 873                         i=(int)BIO_append_filename(out,outfile);
 874                 else
 875                         i=(int)BIO_write_filename(out,outfile);
 876                 if (!i)
 877                         {
 878                         perror(outfile);
 879                         goto end;
 880                         }
 881                 }
 882
 883         if (text)
 884                 {
 885                 if (x509)
 886                         X509_print(out,x509ss);
 887                 else
 888                         X509_REQ_print(out,req);
 889                 }
 890
 891         if(subject)
 892                 {
 893                 if(x509)
 894                         print_name(out, "subject=", X509_get_subject_name(x509ss), nmflag);
 895                 else
 896                         print_name(out, "subject=", X509_REQ_get_subject_name(req), nmflag);
 897                 }
 898
 899         if (modulus)
 900                 {
 901                 EVP_PKEY *pubkey;
 902
 903                 if (x509)
 904                         pubkey=X509_get_pubkey(x509ss);
 905                 else
 906                         pubkey=X509_REQ_get_pubkey(req);
 907                 if (pubkey == NULL)
 908                         {
 909                         fprintf(stdout,"Modulus=unavailable\n");
 910                         goto end;
 911                         }
 912                 fprintf(stdout,"Modulus=");
 913 #ifndef NO_RSA
 914                 if (pubkey->type == EVP_PKEY_RSA)
 915                         BN_print(out,pubkey->pkey.rsa->n);
 916                 else
 917 #endif
 918                         fprintf(stdout,"Wrong Algorithm type");
 919                 fprintf(stdout,"\n");
 920                 }
 921
 922         if (!noout && !x509)
 923                 {
 924                 if      (outformat == FORMAT_ASN1)
 925                         i=i2d_X509_REQ_bio(out,req);
 926                 else if (outformat == FORMAT_PEM) {
 927                         if(newhdr) i=PEM_write_bio_X509_REQ_NEW(out,req);
 928                         else i=PEM_write_bio_X509_REQ(out,req);
 929                 } else {
 930                         BIO_printf(bio_err,"bad output format specified for outfile\n");
 931                         goto end;
 932                         }
 933                 if (!i)
 934                         {
 935                         BIO_printf(bio_err,"unable to write X509 request\n");
 936                         goto end;
 937                         }
 938                 }
 939         if (!noout && x509 && (x509ss != NULL))
 940                 {
 941                 if      (outformat == FORMAT_ASN1)
 942                         i=i2d_X509_bio(out,x509ss);
 943                 else if (outformat == FORMAT_PEM)
 944                         i=PEM_write_bio_X509(out,x509ss);
 945                 else    {
 946                         BIO_printf(bio_err,"bad output format specified for outfile\n");
 947                         goto end;
 948                         }
 949                 if (!i)
 950                         {
 951                         BIO_printf(bio_err,"unable to write X509 certificate\n");
 952                         goto end;
 953                         }
 954                 }
 955         ex=0;
 956 end:
 957         if (ex)
 958                 {
 959                 ERR_print_errors(bio_err);
 960                 }
 961         if ((req_conf != NULL) && (req_conf != config)) CONF_free(req_conf);
 962         BIO_free(in);
 963         BIO_free_all(out);
 964         EVP_PKEY_free(pkey);
 965         X509_REQ_free(req);
 966         X509_free(x509ss);
 967         if(passargin && passin) OPENSSL_free(passin);
 968         if(passargout && passout) OPENSSL_free(passout);
 969         OBJ_cleanup();
 970 #ifndef NO_DSA
 971         if (dsa_params != NULL) DSA_free(dsa_params);
 972 #endif
 973         EXIT(ex);
 974         }
 975
 976 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, int attribs)
 977         {
 978         int ret=0,i;
 979         char no_prompt = 0;
 980         STACK_OF(CONF_VALUE) *dn_sk, *attr_sk = NULL;
 981         char *tmp, *dn_sect,*attr_sect;
 982
 983         tmp=CONF_get_string(req_conf,SECTION,PROMPT);
 984         if((tmp != NULL) && !strcmp(tmp, "no")) no_prompt = 1;
 985
 986         dn_sect=CONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME);
 987         if (dn_sect == NULL)
 988                 {
 989                 BIO_printf(bio_err,"unable to find '%s' in config\n",
 990                         DISTINGUISHED_NAME);
 991                 goto err;
 992                 }
 993         dn_sk=CONF_get_section(req_conf,dn_sect);
 994         if (dn_sk == NULL)
 995                 {
 996                 BIO_printf(bio_err,"unable to get '%s' section\n",dn_sect);
 997                 goto err;
 998                 }
 999
1000         attr_sect=CONF_get_string(req_conf,SECTION,ATTRIBUTES);
1001         if (attr_sect == NULL)
1002                 attr_sk=NULL;
1003         else
1004                 {
1005                 attr_sk=CONF_get_section(req_conf,attr_sect);
1006                 if (attr_sk == NULL)
1007                         {
1008                         BIO_printf(bio_err,"unable to get '%s' section\n",attr_sect);
1009                         goto err;
1010                         }
1011                 }
1012
1013         /* setup version number */
1014         if (!X509_REQ_set_version(req,0L)) goto err; /* version 1 */
1015
1016         if(no_prompt) i = auto_info(req, dn_sk, attr_sk, attribs);
1017         else i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs);
1018         if(!i) goto err;
1019
1020         X509_REQ_set_pubkey(req,pkey);
1021
1022         ret=1;
1023 err:
1024         return(ret);
1025         }
1026
1027
1028 static int prompt_info(X509_REQ *req,
1029                 STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
1030                 STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect, int attribs)
1031         {
1032         int i;
1033         char *p,*q;
1034         char buf[100];
1035         int nid,min,max;
1036         char *type,*def,*value;
1037         CONF_VALUE *v;
1038         X509_NAME *subj;
1039         subj = X509_REQ_get_subject_name(req);
1040         BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n");
1041         BIO_printf(bio_err,"into your certificate request.\n");
1042         BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n");
1043         BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n");
1044         BIO_printf(bio_err,"For some fields there will be a default value,\n");
1045         BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n");
1046         BIO_printf(bio_err,"-----\n");
1047
1048
1049         if (sk_CONF_VALUE_num(dn_sk))
1050                 {
1051                 i= -1;
1052 start:          for (;;)
1053                         {
1054                         i++;
1055                         if (sk_CONF_VALUE_num(dn_sk) <= i) break;
1056
1057                         v=sk_CONF_VALUE_value(dn_sk,i);
1058                         p=q=NULL;
1059                         type=v->name;
1060                         if(!check_end(type,"_min") || !check_end(type,"_max") ||
1061                                 !check_end(type,"_default") ||
1062                                          !check_end(type,"_value")) continue;
1063                         /* Skip past any leading X. X: X, etc to allow for
1064                          * multiple instances
1065                          */
1066                         for(p = v->name; *p ; p++)
1067                                 if ((*p == ':') || (*p == ',') ||
1068                                                          (*p == '.')) {
1069                                         p++;
1070                                         if(*p) type = p;
1071                                         break;
1072                                 }
1073                         /* If OBJ not recognised ignore it */
1074                         if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start;
1075                         sprintf(buf,"%s_default",v->name);
1076                         if ((def=CONF_get_string(req_conf,dn_sect,buf)) == NULL)
1077                                 def="";
1078
1079                         sprintf(buf,"%s_value",v->name);
1080                         if ((value=CONF_get_string(req_conf,dn_sect,buf)) == NULL)
1081                                 value=NULL;
1082
1083                         sprintf(buf,"%s_min",v->name);
1084                         min=(int)CONF_get_number(req_conf,dn_sect,buf);
1085
1086                         sprintf(buf,"%s_max",v->name);
1087                         max=(int)CONF_get_number(req_conf,dn_sect,buf);
1088
1089                         if (!add_DN_object(subj,v->value,def,value,nid,
1090                                 min,max))
1091                                 return 0;
1092                         }
1093                 if (X509_NAME_entry_count(subj) == 0)
1094                         {
1095                         BIO_printf(bio_err,"error, no objects specified in config file\n");
1096                         return 0;
1097                         }
1098
1099                 if (attribs)
1100                         {
1101                         if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0))
1102                                 {
1103                                 BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n");
1104                                 BIO_printf(bio_err,"to be sent with your certificate request\n");
1105                                 }
1106
1107                         i= -1;
1108 start2:                 for (;;)
1109                                 {
1110                                 i++;
1111                                 if ((attr_sk == NULL) ||
1112                                             (sk_CONF_VALUE_num(attr_sk) <= i))
1113                                         break;
1114
1115                                 v=sk_CONF_VALUE_value(attr_sk,i);
1116                                 type=v->name;
1117                                 if ((nid=OBJ_txt2nid(type)) == NID_undef)
1118                                         goto start2;
1119
1120                                 sprintf(buf,"%s_default",type);
1121                                 if ((def=CONF_get_string(req_conf,attr_sect,buf))
1122                                         == NULL)
1123                                         def="";
1124
1125                                 sprintf(buf,"%s_value",type);
1126                                 if ((value=CONF_get_string(req_conf,attr_sect,buf))
1127                                         == NULL)
1128                                         value=NULL;
1129
1130                                 sprintf(buf,"%s_min",type);
1131                                 min=(int)CONF_get_number(req_conf,attr_sect,buf);
1132
1133                                 sprintf(buf,"%s_max",type);
1134                                 max=(int)CONF_get_number(req_conf,attr_sect,buf);
1135
1136                                 if (!add_attribute_object(req,
1137                                         v->value,def,value,nid,min,max))
1138                                         return 0;
1139                                 }
1140                         }
1141                 }
1142         else
1143                 {
1144                 BIO_printf(bio_err,"No template, please set one up.\n");
1145                 return 0;
1146                 }
1147
1148         return 1;
1149
1150         }
1151
1152 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1153                         STACK_OF(CONF_VALUE) *attr_sk, int attribs)
1154         {
1155         int i;
1156         char *p,*q;
1157         char *type;
1158         CONF_VALUE *v;
1159         X509_NAME *subj;
1160
1161         subj = X509_REQ_get_subject_name(req);
1162
1163         for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++)
1164                 {
1165                 v=sk_CONF_VALUE_value(dn_sk,i);
1166                 p=q=NULL;
1167                 type=v->name;
1168                 /* Skip past any leading X. X: X, etc to allow for
1169                  * multiple instances
1170                  */
1171                 for(p = v->name; *p ; p++)
1172 #ifndef CHARSET_EBCDIC
1173                         if ((*p == ':') || (*p == ',') || (*p == '.')) {
1174 #else
1175                         if ((*p == os_toascii[':']) || (*p == os_toascii[',']) || (*p == os_toascii['.'])) {
1176 #endif
1177                                 p++;
1178                                 if(*p) type = p;
1179                                 break;
1180                         }
1181                 if (!X509_NAME_add_entry_by_txt(subj,type, MBSTRING_ASC,
1182                                 (unsigned char *) v->value,-1,-1,0)) return 0;
1183
1184                 }
1185
1186                 if (!X509_NAME_entry_count(subj))
1187                         {
1188                         BIO_printf(bio_err,"error, no objects specified in config file\n");
1189                         return 0;
1190                         }
1191                 if (attribs)
1192                         {
1193                         for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++)
1194                                 {
1195                                 v=sk_CONF_VALUE_value(attr_sk,i);
1196                                 if(!X509_REQ_add1_attr_by_txt(req, v->name, MBSTRING_ASC,
1197                                         (unsigned char *)v->value, -1)) return 0;
1198                                 }
1199                         }
1200         return 1;
1201         }
1202
1203
1204 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
1205              int nid, int min, int max)
1206         {
1207         int i,ret=0;
1208         MS_STATIC char buf[1024];
1209 start:
1210         BIO_printf(bio_err,"%s [%s]:",text,def);
1211         (void)BIO_flush(bio_err);
1212         if (value != NULL)
1213                 {
1214                 strcpy(buf,value);
1215                 strcat(buf,"\n");
1216                 BIO_printf(bio_err,"%s\n",value);
1217                 }
1218         else
1219                 {
1220                 buf[0]='\0';
1221                 fgets(buf,1024,stdin);
1222                 }
1223
1224         if (buf[0] == '\0') return(0);
1225         else if (buf[0] == '\n')
1226                 {
1227                 if ((def == NULL) || (def[0] == '\0'))
1228                         return(1);
1229                 strcpy(buf,def);
1230                 strcat(buf,"\n");
1231                 }
1232         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1233
1234         i=strlen(buf);
1235         if (buf[i-1] != '\n')
1236                 {
1237                 BIO_printf(bio_err,"weird input :-(\n");
1238                 return(0);
1239                 }
1240         buf[--i]='\0';
1241
1242 #ifdef CHARSET_EBCDIC
1243         ebcdic2ascii(buf, buf, i);
1244 #endif
1245         if(!req_check_len(i, min, max)) goto start;
1246         if (!X509_NAME_add_entry_by_NID(n,nid, MBSTRING_ASC,
1247                                 (unsigned char *) buf, -1,-1,0)) goto err;
1248         ret=1;
1249 err:
1250         return(ret);
1251         }
1252
1253 static int add_attribute_object(X509_REQ *req, char *text,
1254                                 char *def, char *value, int nid, int min,
1255                                 int max)
1256         {
1257         int i;
1258         static char buf[1024];
1259
1260 start:
1261         BIO_printf(bio_err,"%s [%s]:",text,def);
1262         (void)BIO_flush(bio_err);
1263         if (value != NULL)
1264                 {
1265                 strcpy(buf,value);
1266                 strcat(buf,"\n");
1267                 BIO_printf(bio_err,"%s\n",value);
1268                 }
1269         else
1270                 {
1271                 buf[0]='\0';
1272                 fgets(buf,1024,stdin);
1273                 }
1274
1275         if (buf[0] == '\0') return(0);
1276         else if (buf[0] == '\n')
1277                 {
1278                 if ((def == NULL) || (def[0] == '\0'))
1279                         return(1);
1280                 strcpy(buf,def);
1281                 strcat(buf,"\n");
1282                 }
1283         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1284
1285         i=strlen(buf);
1286         if (buf[i-1] != '\n')
1287                 {
1288                 BIO_printf(bio_err,"weird input :-(\n");
1289                 return(0);
1290                 }
1291         buf[--i]='\0';
1292 #ifdef CHARSET_EBCDIC
1293         ebcdic2ascii(buf, buf, i);
1294 #endif
1295         if(!req_check_len(i, min, max)) goto start;
1296
1297         if(!X509_REQ_add1_attr_by_NID(req, nid, MBSTRING_ASC,
1298                                         (unsigned char *)buf, -1)) {
1299                 BIO_printf(bio_err, "Error adding attribute\n");
1300                 ERR_print_errors(bio_err);
1301                 goto err;
1302         }
1303
1304         return(1);
1305 err:
1306         return(0);
1307         }
1308
1309 #ifndef NO_RSA
1310 static void MS_CALLBACK req_cb(int p, int n, void *arg)
1311         {
1312         char c='*';
1313
1314         if (p == 0) c='.';
1315         if (p == 1) c='+';
1316         if (p == 2) c='*';
1317         if (p == 3) c='\n';
1318         BIO_write((BIO *)arg,&c,1);
1319         (void)BIO_flush((BIO *)arg);
1320 #ifdef LINT
1321         p=n;
1322 #endif
1323         }
1324 #endif
1325
1326 static int req_check_len(int len, int min, int max)
1327         {
1328         if (len < min)
1329                 {
1330                 BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",min);
1331                 return(0);
1332                 }
1333         if ((max != 0) && (len > max))
1334                 {
1335                 BIO_printf(bio_err,"string is too long, it needs to be less than  %d bytes long\n",max);
1336                 return(0);
1337                 }
1338         return(1);
1339         }
1340
1341 /* Check if the end of a string matches 'end' */
1342 static int check_end(char *str, char *end)
1343 {
1344         int elen, slen;
1345         char *tmp;
1346         elen = strlen(end);
1347         slen = strlen(str);
1348         if(elen > slen) return 1;
1349         tmp = str + slen - elen;
1350         return strcmp(tmp, end);
1351 }