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