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req.c

/* apps/req.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

/* Until the key-gen callbacks are modified to use newer prototypes, we allow
 * deprecated functions for openssl-internal code */
#ifdef OPENSSL_NO_DEPRECATED
#undef OPENSSL_NO_DEPRECATED
#endif

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <string.h>
#ifdef OPENSSL_NO_STDIO
#define APPS_WIN16
#endif
#include "apps.h"
#include <openssl/bio.h>
#include <openssl/evp.h>
#include <openssl/conf.h>
#include <openssl/err.h>
#include <openssl/asn1.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include <openssl/objects.h>
#include <openssl/pem.h>
#include <openssl/bn.h>
#ifndef OPENSSL_NO_RSA
#include <openssl/rsa.h>
#endif
#ifndef OPENSSL_NO_DSA
#include <openssl/dsa.h>
#endif

#define SECTION         "req"

#define BITS            "default_bits"
#define KEYFILE         "default_keyfile"
#define PROMPT          "prompt"
#define DISTINGUISHED_NAME    "distinguished_name"
#define ATTRIBUTES      "attributes"
#define V3_EXTENSIONS   "x509_extensions"
#define REQ_EXTENSIONS  "req_extensions"
#define STRING_MASK     "string_mask"
#define UTF8_IN         "utf8"

#define DEFAULT_KEY_LENGTH    512
#define MIN_KEY_LENGTH        384

#undef PROG
#define PROG      req_main

/* -inform arg    - input format - default PEM (DER or PEM)
 * -outform arg - output format - default PEM
 * -in arg  - input file - default stdin
 * -out arg - output file - default stdout
 * -verify  - check request signature
 * -noout   - don't print stuff out.
 * -text    - print out human readable text.
 * -nodes   - no des encryption
 * -config file   - Load configuration file.
 * -key file      - make a request using key in file (or use it for verification).
 * -keyform arg   - key file format.
 * -rand file(s) - load the file(s) into the PRNG.
 * -newkey  - make a key and a request.
 * -modulus - print RSA modulus.
 * -pubkey  - output Public Key.
 * -x509    - output a self signed X509 structure instead.
 * -asn1-kludge   - output new certificate request in a format that some CA's
 *            require.  This format is wrong
 */

static int make_REQ(X509_REQ *req,EVP_PKEY *pkey,char *dn,int mutlirdn,
            int attribs,unsigned long chtype);
static int build_subject(X509_REQ *req, char *subj, unsigned long chtype,
            int multirdn);
static int prompt_info(X509_REQ *req,
            STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
            STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect, int attribs,
            unsigned long chtype);
static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *sk,
                        STACK_OF(CONF_VALUE) *attr, int attribs,
                        unsigned long chtype);
static int add_attribute_object(X509_REQ *req, char *text, const char *def,
                        char *value, int nid, int n_min,
                        int n_max, unsigned long chtype);
static int add_DN_object(X509_NAME *n, char *text, const char *def, char *value,
      int nid,int n_min,int n_max, unsigned long chtype, int mval);
#ifndef OPENSSL_NO_RSA
static int MS_CALLBACK req_cb(int p, int n, BN_GENCB *cb);
#endif
static int req_check_len(int len,int n_min,int n_max);
static int check_end(const char *str, const char *end);
#ifndef MONOLITH
static char *default_config_file=NULL;
#endif
static CONF *req_conf=NULL;
static int batch=0;

#define TYPE_RSA  1
#define TYPE_DSA  2
#define TYPE_DH         3
#define TYPE_EC         4

int MAIN(int, char **);

int MAIN(int argc, char **argv)
      {
      ENGINE *e = NULL;
#ifndef OPENSSL_NO_DSA
      DSA *dsa_params=NULL;
#endif
#ifndef OPENSSL_NO_ECDSA
      EC_KEY *ec_params = NULL;
#endif
      unsigned long nmflag = 0, reqflag = 0;
      int ex=1,x509=0,days=30;
      X509 *x509ss=NULL;
      X509_REQ *req=NULL;
      EVP_PKEY *pkey=NULL;
      int i=0,badops=0,newreq=0,verbose=0,pkey_type=TYPE_RSA;
      long newkey = -1;
      BIO *in=NULL,*out=NULL;
      int informat,outformat,verify=0,noout=0,text=0,keyform=FORMAT_PEM;
      int nodes=0,kludge=0,newhdr=0,subject=0,pubkey=0;
      char *infile,*outfile,*prog,*keyfile=NULL,*template=NULL,*keyout=NULL;
#ifndef OPENSSL_NO_ENGINE
      char *engine=NULL;
#endif
      char *extensions = NULL;
      char *req_exts = NULL;
      const EVP_CIPHER *cipher=NULL;
      ASN1_INTEGER *serial = NULL;
      int modulus=0;
      char *inrand=NULL;
      char *passargin = NULL, *passargout = NULL;
      char *passin = NULL, *passout = NULL;
      char *p;
      char *subj = NULL;
      int multirdn = 0;
      const EVP_MD *md_alg=NULL,*digest=EVP_sha1();
      unsigned long chtype = MBSTRING_ASC;
#ifndef MONOLITH
      char *to_free;
      long errline;
#endif

      req_conf = NULL;
#ifndef OPENSSL_NO_DES
      cipher=EVP_des_ede3_cbc();
#endif
      apps_startup();

      if (bio_err == NULL)
            if ((bio_err=BIO_new(BIO_s_file())) != NULL)
                  BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);

      infile=NULL;
      outfile=NULL;
      informat=FORMAT_PEM;
      outformat=FORMAT_PEM;

      prog=argv[0];
      argc--;
      argv++;
      while (argc >= 1)
            {
            if    (strcmp(*argv,"-inform") == 0)
                  {
                  if (--argc < 1) goto bad;
                  informat=str2fmt(*(++argv));
                  }
            else if (strcmp(*argv,"-outform") == 0)
                  {
                  if (--argc < 1) goto bad;
                  outformat=str2fmt(*(++argv));
                  }
#ifndef OPENSSL_NO_ENGINE
            else if (strcmp(*argv,"-engine") == 0)
                  {
                  if (--argc < 1) goto bad;
                  engine= *(++argv);
                  }
#endif
            else if (strcmp(*argv,"-key") == 0)
                  {
                  if (--argc < 1) goto bad;
                  keyfile= *(++argv);
                  }
            else if (strcmp(*argv,"-pubkey") == 0)
                  {
                  pubkey=1;
                  }
            else if (strcmp(*argv,"-new") == 0)
                  {
                  newreq=1;
                  }
            else if (strcmp(*argv,"-config") == 0)
                  {     
                  if (--argc < 1) goto bad;
                  template= *(++argv);
                  }
            else if (strcmp(*argv,"-keyform") == 0)
                  {
                  if (--argc < 1) goto bad;
                  keyform=str2fmt(*(++argv));
                  }
            else if (strcmp(*argv,"-in") == 0)
                  {
                  if (--argc < 1) goto bad;
                  infile= *(++argv);
                  }
            else if (strcmp(*argv,"-out") == 0)
                  {
                  if (--argc < 1) goto bad;
                  outfile= *(++argv);
                  }
            else if (strcmp(*argv,"-keyout") == 0)
                  {
                  if (--argc < 1) goto bad;
                  keyout= *(++argv);
                  }
            else if (strcmp(*argv,"-passin") == 0)
                  {
                  if (--argc < 1) goto bad;
                  passargin= *(++argv);
                  }
            else if (strcmp(*argv,"-passout") == 0)
                  {
                  if (--argc < 1) goto bad;
                  passargout= *(++argv);
                  }
            else if (strcmp(*argv,"-rand") == 0)
                  {
                  if (--argc < 1) goto bad;
                  inrand= *(++argv);
                  }
            else if (strcmp(*argv,"-newkey") == 0)
                  {
                  int is_numeric;

                  if (--argc < 1) goto bad;
                  p= *(++argv);
                  is_numeric = p[0] >= '0' && p[0] <= '9';
                  if (strncmp("rsa:",p,4) == 0 || is_numeric)
                        {
                        pkey_type=TYPE_RSA;
                        if(!is_numeric)
                            p+=4;
                        newkey= atoi(p);
                        }
                  else
#ifndef OPENSSL_NO_DSA
                        if (strncmp("dsa:",p,4) == 0)
                        {
                        X509 *xtmp=NULL;
                        EVP_PKEY *dtmp;

                        pkey_type=TYPE_DSA;
                        p+=4;
                        if ((in=BIO_new_file(p,"r")) == NULL)
                              {
                              perror(p);
                              goto end;
                              }
                        if ((dsa_params=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL)
                              {
                              ERR_clear_error();
                              (void)BIO_reset(in);
                              if ((xtmp=PEM_read_bio_X509(in,NULL,NULL,NULL)) == NULL)
                                    {
                                    BIO_printf(bio_err,"unable to load DSA parameters from file\n");
                                    goto end;
                                    }

                              if ((dtmp=X509_get_pubkey(xtmp)) == NULL) goto end;
                              if (dtmp->type == EVP_PKEY_DSA)
                                    dsa_params=DSAparams_dup(dtmp->pkey.dsa);
                              EVP_PKEY_free(dtmp);
                              X509_free(xtmp);
                              if (dsa_params == NULL)
                                    {
                                    BIO_printf(bio_err,"Certificate does not contain DSA parameters\n");
                                    goto end;
                                    }
                              }
                        BIO_free(in);
                        in=NULL;
                        newkey=BN_num_bits(dsa_params->p);
                        }
                  else 
#endif
#ifndef OPENSSL_NO_ECDSA
                        if (strncmp("ec:",p,3) == 0)
                        {
                        X509 *xtmp=NULL;
                        EVP_PKEY *dtmp;
                        EC_GROUP *group;

                        pkey_type=TYPE_EC;
                        p+=3;
                        if ((in=BIO_new_file(p,"r")) == NULL)
                              {
                              perror(p);
                              goto end;
                              }
                        if ((ec_params = EC_KEY_new()) == NULL)
                              goto end;
                        group = PEM_read_bio_ECPKParameters(in, NULL, NULL, NULL);
                        if (group == NULL)
                              {
                              EC_KEY_free(ec_params);
                              ERR_clear_error();
                              (void)BIO_reset(in);
                              if ((xtmp=PEM_read_bio_X509(in,NULL,NULL,NULL)) == NULL)
                                    {     
                                    BIO_printf(bio_err,"unable to load EC parameters from file\n");
                                    goto end;
                                    }

                              if ((dtmp=X509_get_pubkey(xtmp))==NULL)
                                    goto end;
                              if (dtmp->type == EVP_PKEY_EC)
                                    ec_params = EC_KEY_dup(dtmp->pkey.ec);
                              EVP_PKEY_free(dtmp);
                              X509_free(xtmp);
                              if (ec_params == NULL)
                                    {
                                    BIO_printf(bio_err,"Certificate does not contain EC parameters\n");
                                    goto end;
                                    }
                              }
                        else
                              {
                              if (EC_KEY_set_group(ec_params, group) == 0)
                                    goto end;
                              EC_GROUP_free(group);
                              }

                        BIO_free(in);
                        in=NULL;
                        newkey = EC_GROUP_get_degree(EC_KEY_get0_group(ec_params));
                        }
                  else
#endif
#ifndef OPENSSL_NO_DH
                        if (strncmp("dh:",p,4) == 0)
                        {
                        pkey_type=TYPE_DH;
                        p+=3;
                        }
                  else
#endif
                        {
                        goto bad;
                        }

                  newreq=1;
                  }
            else if (strcmp(*argv,"-batch") == 0)
                  batch=1;
            else if (strcmp(*argv,"-newhdr") == 0)
                  newhdr=1;
            else if (strcmp(*argv,"-modulus") == 0)
                  modulus=1;
            else if (strcmp(*argv,"-verify") == 0)
                  verify=1;
            else if (strcmp(*argv,"-nodes") == 0)
                  nodes=1;
            else if (strcmp(*argv,"-noout") == 0)
                  noout=1;
            else if (strcmp(*argv,"-verbose") == 0)
                  verbose=1;
            else if (strcmp(*argv,"-utf8") == 0)
                  chtype = MBSTRING_UTF8;
            else if (strcmp(*argv,"-nameopt") == 0)
                  {
                  if (--argc < 1) goto bad;
                  if (!set_name_ex(&nmflag, *(++argv))) goto bad;
                  }
            else if (strcmp(*argv,"-reqopt") == 0)
                  {
                  if (--argc < 1) goto bad;
                  if (!set_cert_ex(&reqflag, *(++argv))) goto bad;
                  }
            else if (strcmp(*argv,"-subject") == 0)
                  subject=1;
            else if (strcmp(*argv,"-text") == 0)
                  text=1;
            else if (strcmp(*argv,"-x509") == 0)
                  x509=1;
            else if (strcmp(*argv,"-asn1-kludge") == 0)
                  kludge=1;
            else if (strcmp(*argv,"-no-asn1-kludge") == 0)
                  kludge=0;
            else if (strcmp(*argv,"-subj") == 0)
                  {
                  if (--argc < 1) goto bad;
                  subj= *(++argv);
                  }
            else if (strcmp(*argv,"-multivalue-rdn") == 0)
                  multirdn=1;
            else if (strcmp(*argv,"-days") == 0)
                  {
                  if (--argc < 1) goto bad;
                  days= atoi(*(++argv));
                  if (days == 0) days=30;
                  }
            else if (strcmp(*argv,"-set_serial") == 0)
                  {
                  if (--argc < 1) goto bad;
                  serial = s2i_ASN1_INTEGER(NULL, *(++argv));
                  if (!serial) goto bad;
                  }
            else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
                  {
                  /* ok */
                  digest=md_alg;
                  }
            else if (strcmp(*argv,"-extensions") == 0)
                  {
                  if (--argc < 1) goto bad;
                  extensions = *(++argv);
                  }
            else if (strcmp(*argv,"-reqexts") == 0)
                  {
                  if (--argc < 1) goto bad;
                  req_exts = *(++argv);
                  }
            else
                  {
                  BIO_printf(bio_err,"unknown option %s\n",*argv);
                  badops=1;
                  break;
                  }
            argc--;
            argv++;
            }

      if (badops)
            {
bad:
            BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
            BIO_printf(bio_err,"where options  are\n");
            BIO_printf(bio_err," -inform arg    input format - DER or PEM\n");
            BIO_printf(bio_err," -outform arg   output format - DER or PEM\n");
            BIO_printf(bio_err," -in arg        input file\n");
            BIO_printf(bio_err," -out arg       output file\n");
            BIO_printf(bio_err," -text          text form of request\n");
            BIO_printf(bio_err," -pubkey        output public key\n");
            BIO_printf(bio_err," -noout         do not output REQ\n");
            BIO_printf(bio_err," -verify        verify signature on REQ\n");
            BIO_printf(bio_err," -modulus       RSA modulus\n");
            BIO_printf(bio_err," -nodes         don't encrypt the output key\n");
#ifndef OPENSSL_NO_ENGINE
            BIO_printf(bio_err," -engine e      use engine e, possibly a hardware device\n");
#endif
            BIO_printf(bio_err," -subject       output the request's subject\n");
            BIO_printf(bio_err," -passin        private key password source\n");
            BIO_printf(bio_err," -key file      use the private key contained in file\n");
            BIO_printf(bio_err," -keyform arg   key file format\n");
            BIO_printf(bio_err," -keyout arg    file to send the key to\n");
            BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
            BIO_printf(bio_err,"                load the file (or the files in the directory) into\n");
            BIO_printf(bio_err,"                the random number generator\n");
            BIO_printf(bio_err," -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
            BIO_printf(bio_err," -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
#ifndef OPENSSL_NO_ECDSA
            BIO_printf(bio_err," -newkey ec:file generate a new EC key, parameters taken from CA in 'file'\n");
#endif
            BIO_printf(bio_err," -[digest]      Digest to sign with (md5, sha1, md2, mdc2, md4)\n");
            BIO_printf(bio_err," -config file   request template file.\n");
            BIO_printf(bio_err," -subj arg      set or modify request subject\n");
            BIO_printf(bio_err," -multivalue-rdn enable support for multivalued RDNs\n");
            BIO_printf(bio_err," -new           new request.\n");
            BIO_printf(bio_err," -batch         do not ask anything during request generation\n");
            BIO_printf(bio_err," -x509          output a x509 structure instead of a cert. req.\n");
            BIO_printf(bio_err," -days          number of days a certificate generated by -x509 is valid for.\n");
            BIO_printf(bio_err," -set_serial    serial number to use for a certificate generated by -x509.\n");
            BIO_printf(bio_err," -newhdr        output \"NEW\" in the header lines\n");
            BIO_printf(bio_err," -asn1-kludge   Output the 'request' in a format that is wrong but some CA's\n");
            BIO_printf(bio_err,"                have been reported as requiring\n");
            BIO_printf(bio_err," -extensions .. specify certificate extension section (override value in config file)\n");
            BIO_printf(bio_err," -reqexts ..    specify request extension section (override value in config file)\n");
            BIO_printf(bio_err," -utf8          input characters are UTF8 (default ASCII)\n");
            BIO_printf(bio_err," -nameopt arg    - various certificate name options\n");
            BIO_printf(bio_err," -reqopt arg    - various request text options\n\n");
            goto end;
            }

      ERR_load_crypto_strings();
      if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
            BIO_printf(bio_err, "Error getting passwords\n");
            goto end;
      }

#ifndef MONOLITH /* else this has happened in openssl.c (global `config') */
      /* Lets load up our environment a little */
      p=getenv("OPENSSL_CONF");
      if (p == NULL)
            p=getenv("SSLEAY_CONF");
      if (p == NULL)
            p=to_free=make_config_name();
      default_config_file=p;
      config=NCONF_new(NULL);
      i=NCONF_load(config, p, &errline);
#endif

      if (template != NULL)
            {
            long errline = -1;

            if( verbose )
                  BIO_printf(bio_err,"Using configuration from %s\n",template);
            req_conf=NCONF_new(NULL);
            i=NCONF_load(req_conf,template,&errline);
            if (i == 0)
                  {
                  BIO_printf(bio_err,"error on line %ld of %s\n",errline,template);
                  goto end;
                  }
            }
      else
            {
            req_conf=config;

            if (req_conf == NULL)
                  {
                  BIO_printf(bio_err,"Unable to load config info from %s\n", default_config_file);
                  if (newreq)
                        goto end;
                  }
            else if( verbose )
                  BIO_printf(bio_err,"Using configuration from %s\n",
                  default_config_file);
            }

      if (req_conf != NULL)
            {
            if (!load_config(bio_err, req_conf))
                  goto end;
            p=NCONF_get_string(req_conf,NULL,"oid_file");
            if (p == NULL)
                  ERR_clear_error();
            if (p != NULL)
                  {
                  BIO *oid_bio;

                  oid_bio=BIO_new_file(p,"r");
                  if (oid_bio == NULL) 
                        {
                        /*
                        BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
                        ERR_print_errors(bio_err);
                        */
                        }
                  else
                        {
                        OBJ_create_objects(oid_bio);
                        BIO_free(oid_bio);
                        }
                  }
            }
      if(!add_oid_section(bio_err, req_conf)) goto end;

      if (md_alg == NULL)
            {
            p=NCONF_get_string(req_conf,SECTION,"default_md");
            if (p == NULL)
                  ERR_clear_error();
            if (p != NULL)
                  {
                  if ((md_alg=EVP_get_digestbyname(p)) != NULL)
                        digest=md_alg;
                  }
            }

      if (!extensions)
            {
            extensions = NCONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
            if (!extensions)
                  ERR_clear_error();
            }
      if (extensions) {
            /* Check syntax of file */
            X509V3_CTX ctx;
            X509V3_set_ctx_test(&ctx);
            X509V3_set_nconf(&ctx, req_conf);
            if(!X509V3_EXT_add_nconf(req_conf, &ctx, extensions, NULL)) {
                  BIO_printf(bio_err,
                   "Error Loading extension section %s\n", extensions);
                  goto end;
            }
      }

      if(!passin)
            {
            passin = NCONF_get_string(req_conf, SECTION, "input_password");
            if (!passin)
                  ERR_clear_error();
            }
      
      if(!passout)
            {
            passout = NCONF_get_string(req_conf, SECTION, "output_password");
            if (!passout)
                  ERR_clear_error();
            }

      p = NCONF_get_string(req_conf, SECTION, STRING_MASK);
      if (!p)
            ERR_clear_error();

      if(p && !ASN1_STRING_set_default_mask_asc(p)) {
            BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
            goto end;
      }

      if (chtype != MBSTRING_UTF8)
            {
            p = NCONF_get_string(req_conf, SECTION, UTF8_IN);
            if (!p)
                  ERR_clear_error();
            else if (!strcmp(p, "yes"))
                  chtype = MBSTRING_UTF8;
            }


      if(!req_exts)
            {
            req_exts = NCONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
            if (!req_exts)
                  ERR_clear_error();
            }
      if(req_exts) {
            /* Check syntax of file */
            X509V3_CTX ctx;
            X509V3_set_ctx_test(&ctx);
            X509V3_set_nconf(&ctx, req_conf);
            if(!X509V3_EXT_add_nconf(req_conf, &ctx, req_exts, NULL)) {
                  BIO_printf(bio_err,
                   "Error Loading request extension section %s\n",
                                                req_exts);
                  goto end;
            }
      }

      in=BIO_new(BIO_s_file());
      out=BIO_new(BIO_s_file());
      if ((in == NULL) || (out == NULL))
            goto end;

#ifndef OPENSSL_NO_ENGINE
        e = setup_engine(bio_err, engine, 0);
#endif

      if (keyfile != NULL)
            {
            pkey = load_key(bio_err, keyfile, keyform, 0, passin, e,
                  "Private Key");
            if (!pkey)
                  {
                  /* load_key() has already printed an appropriate
                     message */
                  goto end;
                  }
            if (EVP_PKEY_type(pkey->type) == EVP_PKEY_DSA || 
                  EVP_PKEY_type(pkey->type) == EVP_PKEY_EC)
                  {
                  char *randfile = NCONF_get_string(req_conf,SECTION,"RANDFILE");
                  if (randfile == NULL)
                        ERR_clear_error();
                  app_RAND_load_file(randfile, bio_err, 0);
                  }
            }

      if (newreq && (pkey == NULL))
            {
#ifndef OPENSSL_NO_RSA
            BN_GENCB cb;
#endif
            char *randfile = NCONF_get_string(req_conf,SECTION,"RANDFILE");
            if (randfile == NULL)
                  ERR_clear_error();
            app_RAND_load_file(randfile, bio_err, 0);
            if (inrand)
                  app_RAND_load_files(inrand);
      
            if (newkey <= 0)
                  {
                  if (!NCONF_get_number(req_conf,SECTION,BITS, &newkey))
                        newkey=DEFAULT_KEY_LENGTH;
                  }

            if (newkey < MIN_KEY_LENGTH && (pkey_type == TYPE_RSA || pkey_type == TYPE_DSA))
                  {
                  BIO_printf(bio_err,"private key length is too short,\n");
                  BIO_printf(bio_err,"it needs to be at least %d bits, not %ld\n",MIN_KEY_LENGTH,newkey);
                  goto end;
                  }
            BIO_printf(bio_err,"Generating a %ld bit %s private key\n",
                  newkey,(pkey_type == TYPE_RSA)?"RSA":
                  (pkey_type == TYPE_DSA)?"DSA":"EC");

            if ((pkey=EVP_PKEY_new()) == NULL) goto end;

#ifndef OPENSSL_NO_RSA
            BN_GENCB_set(&cb, req_cb, bio_err);
            if (pkey_type == TYPE_RSA)
                  {
                  RSA *rsa = RSA_new();
                  BIGNUM *bn = BN_new();
                  if(!bn || !rsa || !BN_set_word(bn, 0x10001) ||
                              !RSA_generate_key_ex(rsa, newkey, bn, &cb) ||
                              !EVP_PKEY_assign_RSA(pkey, rsa))
                        {
                        if(bn) BN_free(bn);
                        if(rsa) RSA_free(rsa);
                        goto end;
                        }
                  BN_free(bn);
                  }
            else
#endif
#ifndef OPENSSL_NO_DSA
                  if (pkey_type == TYPE_DSA)
                  {
                  if (!DSA_generate_key(dsa_params)) goto end;
                  if (!EVP_PKEY_assign_DSA(pkey,dsa_params)) goto end;
                  dsa_params=NULL;
                  }
#endif
#ifndef OPENSSL_NO_ECDSA
                  if (pkey_type == TYPE_EC)
                  {
                  if (!EC_KEY_generate_key(ec_params)) goto end;
                  if (!EVP_PKEY_assign_EC_KEY(pkey, ec_params)) 
                        goto end;
                  ec_params = NULL;
                  }
#endif

            app_RAND_write_file(randfile, bio_err);

            if (pkey == NULL) goto end;

            if (keyout == NULL)
                  {
                  keyout=NCONF_get_string(req_conf,SECTION,KEYFILE);
                  if (keyout == NULL)
                        ERR_clear_error();
                  }
            
            if (keyout == NULL)
                  {
                  BIO_printf(bio_err,"writing new private key to stdout\n");
                  BIO_set_fp(out,stdout,BIO_NOCLOSE);
#ifdef OPENSSL_SYS_VMS
                  {
                  BIO *tmpbio = BIO_new(BIO_f_linebuffer());
                  out = BIO_push(tmpbio, out);
                  }
#endif
                  }
            else
                  {
                  BIO_printf(bio_err,"writing new private key to '%s'\n",keyout);
                  if (BIO_write_filename(out,keyout) <= 0)
                        {
                        perror(keyout);
                        goto end;
                        }
                  }

            p=NCONF_get_string(req_conf,SECTION,"encrypt_rsa_key");
            if (p == NULL)
                  {
                  ERR_clear_error();
                  p=NCONF_get_string(req_conf,SECTION,"encrypt_key");
                  if (p == NULL)
                        ERR_clear_error();
                  }
            if ((p != NULL) && (strcmp(p,"no") == 0))
                  cipher=NULL;
            if (nodes) cipher=NULL;
            
            i=0;
loop:
            if (!PEM_write_bio_PrivateKey(out,pkey,cipher,
                  NULL,0,NULL,passout))
                  {
                  if ((ERR_GET_REASON(ERR_peek_error()) ==
                        PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3))
                        {
                        ERR_clear_error();
                        i++;
                        goto loop;
                        }
                  goto end;
                  }
            BIO_printf(bio_err,"-----\n");
            }

      if (!newreq)
            {
            /* Since we are using a pre-existing certificate
             * request, the kludge 'format' info should not be
             * changed. */
            kludge= -1;
            if (infile == NULL)
                  BIO_set_fp(in,stdin,BIO_NOCLOSE);
            else
                  {
                  if (BIO_read_filename(in,infile) <= 0)
                        {
                        perror(infile);
                        goto end;
                        }
                  }

            if    (informat == FORMAT_ASN1)
                  req=d2i_X509_REQ_bio(in,NULL);
            else if (informat == FORMAT_PEM)
                  req=PEM_read_bio_X509_REQ(in,NULL,NULL,NULL);
            else
                  {
                  BIO_printf(bio_err,"bad input format specified for X509 request\n");
                  goto end;
                  }
            if (req == NULL)
                  {
                  BIO_printf(bio_err,"unable to load X509 request\n");
                  goto end;
                  }
            }

      if (newreq || x509)
            {
            if (pkey == NULL)
                  {
                  BIO_printf(bio_err,"you need to specify a private key\n");
                  goto end;
                  }
#ifndef OPENSSL_NO_DSA
            if (pkey->type == EVP_PKEY_DSA)
                  digest=EVP_dss1();
#endif
#ifndef OPENSSL_NO_ECDSA
            if (pkey->type == EVP_PKEY_EC)
                  digest=EVP_ecdsa();
#endif
            if (req == NULL)
                  {
                  req=X509_REQ_new();
                  if (req == NULL)
                        {
                        goto end;
                        }

                  i=make_REQ(req,pkey,subj,multirdn,!x509, chtype);
                  subj=NULL; /* done processing '-subj' option */
                  if ((kludge > 0) && !sk_X509_ATTRIBUTE_num(req->req_info->attributes))
                        {
                        sk_X509_ATTRIBUTE_free(req->req_info->attributes);
                        req->req_info->attributes = NULL;
                        }
                  if (!i)
                        {
                        BIO_printf(bio_err,"problems making Certificate Request\n");
                        goto end;
                        }
                  }
            if (x509)
                  {
                  EVP_PKEY *tmppkey;
                  X509V3_CTX ext_ctx;
                  if ((x509ss=X509_new()) == NULL) goto end;

                  /* Set version to V3 */
                  if(extensions && !X509_set_version(x509ss, 2)) goto end;
                  if (serial)
                        {
                        if (!X509_set_serialNumber(x509ss, serial)) goto end;
                        }
                  else
                        {
                        if (!rand_serial(NULL,
                              X509_get_serialNumber(x509ss)))
                                    goto end;
                        }

                  if (!X509_set_issuer_name(x509ss, X509_REQ_get_subject_name(req))) goto end;
                  if (!X509_gmtime_adj(X509_get_notBefore(x509ss),0)) goto end;
                  if (!X509_gmtime_adj(X509_get_notAfter(x509ss), (long)60*60*24*days)) goto end;
                  if (!X509_set_subject_name(x509ss, X509_REQ_get_subject_name(req))) goto end;
                  tmppkey = X509_REQ_get_pubkey(req);
                  if (!tmppkey || !X509_set_pubkey(x509ss,tmppkey)) goto end;
                  EVP_PKEY_free(tmppkey);

                  /* Set up V3 context struct */

                  X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
                  X509V3_set_nconf(&ext_ctx, req_conf);

                  /* Add extensions */
                  if(extensions && !X509V3_EXT_add_nconf(req_conf, 
                              &ext_ctx, extensions, x509ss))
                        {
                        BIO_printf(bio_err,
                              "Error Loading extension section %s\n",
                              extensions);
                        goto end;
                        }
                  
                  if (!(i=X509_sign(x509ss,pkey,digest)))
                        goto end;
                  }
            else
                  {
                  X509V3_CTX ext_ctx;

                  /* Set up V3 context struct */

                  X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
                  X509V3_set_nconf(&ext_ctx, req_conf);

                  /* Add extensions */
                  if(req_exts && !X509V3_EXT_REQ_add_nconf(req_conf, 
                              &ext_ctx, req_exts, req))
                        {
                        BIO_printf(bio_err,
                              "Error Loading extension section %s\n",
                              req_exts);
                        goto end;
                        }
                  if (!(i=X509_REQ_sign(req,pkey,digest)))
                        goto end;
                  }
            }

      if (subj && x509)
            {
            BIO_printf(bio_err, "Cannot modifiy certificate subject\n");
            goto end;
            }

      if (subj && !x509)
            {
            if (verbose)
                  {
                  BIO_printf(bio_err, "Modifying Request's Subject\n");
                  print_name(bio_err, "old subject=", X509_REQ_get_subject_name(req), nmflag);
                  }

            if (build_subject(req, subj, chtype, multirdn) == 0)
                  {
                  BIO_printf(bio_err, "ERROR: cannot modify subject\n");
                  ex=1;
                  goto end;
                  }

            req->req_info->enc.modified = 1;

            if (verbose)
                  {
                  print_name(bio_err, "new subject=", X509_REQ_get_subject_name(req), nmflag);
                  }
            }

      if (verify && !x509)
            {
            int tmp=0;

            if (pkey == NULL)
                  {
                  pkey=X509_REQ_get_pubkey(req);
                  tmp=1;
                  if (pkey == NULL) goto end;
                  }

            i=X509_REQ_verify(req,pkey);
            if (tmp) {
                  EVP_PKEY_free(pkey);
                  pkey=NULL;
            }

            if (i < 0)
                  {
                  goto end;
                  }
            else if (i == 0)
                  {
                  BIO_printf(bio_err,"verify failure\n");
                  ERR_print_errors(bio_err);
                  }
            else /* if (i > 0) */
                  BIO_printf(bio_err,"verify OK\n");
            }

      if (noout && !text && !modulus && !subject && !pubkey)
            {
            ex=0;
            goto end;
            }

      if (outfile == NULL)
            {
            BIO_set_fp(out,stdout,BIO_NOCLOSE);
#ifdef OPENSSL_SYS_VMS
            {
            BIO *tmpbio = BIO_new(BIO_f_linebuffer());
            out = BIO_push(tmpbio, out);
            }
#endif
            }
      else
            {
            if ((keyout != NULL) && (strcmp(outfile,keyout) == 0))
                  i=(int)BIO_append_filename(out,outfile);
            else
                  i=(int)BIO_write_filename(out,outfile);
            if (!i)
                  {
                  perror(outfile);
                  goto end;
                  }
            }

      if (pubkey)
            {
            EVP_PKEY *tpubkey; 
            tpubkey=X509_REQ_get_pubkey(req);
            if (tpubkey == NULL)
                  {
                  BIO_printf(bio_err,"Error getting public key\n");
                  ERR_print_errors(bio_err);
                  goto end;
                  }
            PEM_write_bio_PUBKEY(out, tpubkey);
            EVP_PKEY_free(tpubkey);
            }

      if (text)
            {
            if (x509)
                  X509_print_ex(out, x509ss, nmflag, reqflag);
            else  
                  X509_REQ_print_ex(out, req, nmflag, reqflag);
            }

      if(subject) 
            {
            if(x509)
                  print_name(out, "subject=", X509_get_subject_name(x509ss), nmflag);
            else
                  print_name(out, "subject=", X509_REQ_get_subject_name(req), nmflag);
            }

      if (modulus)
            {
            EVP_PKEY *tpubkey;

            if (x509)
                  tpubkey=X509_get_pubkey(x509ss);
            else
                  tpubkey=X509_REQ_get_pubkey(req);
            if (tpubkey == NULL)
                  {
                  fprintf(stdout,"Modulus=unavailable\n");
                  goto end; 
                  }
            fprintf(stdout,"Modulus=");
#ifndef OPENSSL_NO_RSA
            if (tpubkey->type == EVP_PKEY_RSA)
                  BN_print(out,tpubkey->pkey.rsa->n);
            else
#endif
                  fprintf(stdout,"Wrong Algorithm type");
            EVP_PKEY_free(tpubkey);
            fprintf(stdout,"\n");
            }

      if (!noout && !x509)
            {
            if    (outformat == FORMAT_ASN1)
                  i=i2d_X509_REQ_bio(out,req);
            else if (outformat == FORMAT_PEM) {
                  if(newhdr) i=PEM_write_bio_X509_REQ_NEW(out,req);
                  else i=PEM_write_bio_X509_REQ(out,req);
            } else {
                  BIO_printf(bio_err,"bad output format specified for outfile\n");
                  goto end;
                  }
            if (!i)
                  {
                  BIO_printf(bio_err,"unable to write X509 request\n");
                  goto end;
                  }
            }
      if (!noout && x509 && (x509ss != NULL))
            {
            if    (outformat == FORMAT_ASN1)
                  i=i2d_X509_bio(out,x509ss);
            else if (outformat == FORMAT_PEM)
                  i=PEM_write_bio_X509(out,x509ss);
            else  {
                  BIO_printf(bio_err,"bad output format specified for outfile\n");
                  goto end;
                  }
            if (!i)
                  {
                  BIO_printf(bio_err,"unable to write X509 certificate\n");
                  goto end;
                  }
            }
      ex=0;
end:
#ifndef MONOLITH
      if(to_free)
            OPENSSL_free(to_free);
#endif
      if (ex)
            {
            ERR_print_errors(bio_err);
            }
      if ((req_conf != NULL) && (req_conf != config)) NCONF_free(req_conf);
      BIO_free(in);
      BIO_free_all(out);
      EVP_PKEY_free(pkey);
      X509_REQ_free(req);
      X509_free(x509ss);
      ASN1_INTEGER_free(serial);
      if(passargin && passin) OPENSSL_free(passin);
      if(passargout && passout) OPENSSL_free(passout);
      OBJ_cleanup();
#ifndef OPENSSL_NO_DSA
      if (dsa_params != NULL) DSA_free(dsa_params);
#endif
#ifndef OPENSSL_NO_ECDSA
      if (ec_params != NULL) EC_KEY_free(ec_params);
#endif
      apps_shutdown();
      OPENSSL_EXIT(ex);
      }

static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, char *subj, int multirdn,
                  int attribs, unsigned long chtype)
      {
      int ret=0,i;
      char no_prompt = 0;
      STACK_OF(CONF_VALUE) *dn_sk, *attr_sk = NULL;
      char *tmp, *dn_sect,*attr_sect;

      tmp=NCONF_get_string(req_conf,SECTION,PROMPT);
      if (tmp == NULL)
            ERR_clear_error();
      if((tmp != NULL) && !strcmp(tmp, "no")) no_prompt = 1;

      dn_sect=NCONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME);
      if (dn_sect == NULL)
            {
            BIO_printf(bio_err,"unable to find '%s' in config\n",
                  DISTINGUISHED_NAME);
            goto err;
            }
      dn_sk=NCONF_get_section(req_conf,dn_sect);
      if (dn_sk == NULL)
            {
            BIO_printf(bio_err,"unable to get '%s' section\n",dn_sect);
            goto err;
            }

      attr_sect=NCONF_get_string(req_conf,SECTION,ATTRIBUTES);
      if (attr_sect == NULL)
            {
            ERR_clear_error();            
            attr_sk=NULL;
            }
      else
            {
            attr_sk=NCONF_get_section(req_conf,attr_sect);
            if (attr_sk == NULL)
                  {
                  BIO_printf(bio_err,"unable to get '%s' section\n",attr_sect);
                  goto err;
                  }
            }

      /* setup version number */
      if (!X509_REQ_set_version(req,0L)) goto err; /* version 1 */

      if (no_prompt) 
            i = auto_info(req, dn_sk, attr_sk, attribs, chtype);
      else 
            {
            if (subj)
                  i = build_subject(req, subj, chtype, multirdn);
            else
                  i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs, chtype);
            }
      if(!i) goto err;

      if (!X509_REQ_set_pubkey(req,pkey)) goto err;

      ret=1;
err:
      return(ret);
      }

/*
 * subject is expected to be in the format /type0=value0/type1=value1/type2=...
 * where characters may be escaped by \
 */
static int build_subject(X509_REQ *req, char *subject, unsigned long chtype, int multirdn)
      {
      X509_NAME *n;

      if (!(n = parse_name(subject, chtype, multirdn)))
            return 0;

      if (!X509_REQ_set_subject_name(req, n))
            {
            X509_NAME_free(n);
            return 0;
            }
      X509_NAME_free(n);
      return 1;
}


static int prompt_info(X509_REQ *req,
            STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
            STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect, int attribs,
            unsigned long chtype)
      {
      int i;
      char *p,*q;
      char buf[100];
      int nid, mval;
      long n_min,n_max;
      char *type, *value;
      const char *def;
      CONF_VALUE *v;
      X509_NAME *subj;
      subj = X509_REQ_get_subject_name(req);

      if(!batch)
            {
            BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n");
            BIO_printf(bio_err,"into your certificate request.\n");
            BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n");
            BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n");
            BIO_printf(bio_err,"For some fields there will be a default value,\n");
            BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n");
            BIO_printf(bio_err,"-----\n");
            }


      if (sk_CONF_VALUE_num(dn_sk))
            {
            i= -1;
start:            for (;;)
                  {
                  i++;
                  if (sk_CONF_VALUE_num(dn_sk) <= i) break;

                  v=sk_CONF_VALUE_value(dn_sk,i);
                  p=q=NULL;
                  type=v->name;
                  if(!check_end(type,"_min") || !check_end(type,"_max") ||
                        !check_end(type,"_default") ||
                               !check_end(type,"_value")) continue;
                  /* Skip past any leading X. X: X, etc to allow for
                   * multiple instances 
                   */
                  for(p = v->name; *p ; p++) 
                        if ((*p == ':') || (*p == ',') ||
                                           (*p == '.')) {
                              p++;
                              if(*p) type = p;
                              break;
                        }
                  if (*type == '+')
                        {
                        mval = -1;
                        type++;
                        }
                  else
                        mval = 0;
                  /* If OBJ not recognised ignore it */
                  if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start;
                  if (BIO_snprintf(buf,sizeof buf,"%s_default",v->name)
                        >= (int)sizeof(buf))
                     {
                     BIO_printf(bio_err,"Name '%s' too long\n",v->name);
                     return 0;
                     }

                  if ((def=NCONF_get_string(req_conf,dn_sect,buf)) == NULL)
                        {
                        ERR_clear_error();
                        def="";
                        }
                        
                  BIO_snprintf(buf,sizeof buf,"%s_value",v->name);
                  if ((value=NCONF_get_string(req_conf,dn_sect,buf)) == NULL)
                        {
                        ERR_clear_error();
                        value=NULL;
                        }

                  BIO_snprintf(buf,sizeof buf,"%s_min",v->name);
                  if (!NCONF_get_number(req_conf,dn_sect,buf, &n_min))
                        {
                        ERR_clear_error();
                        n_min = -1;
                        }

                  BIO_snprintf(buf,sizeof buf,"%s_max",v->name);
                  if (!NCONF_get_number(req_conf,dn_sect,buf, &n_max))
                        {
                        ERR_clear_error();
                        n_max = -1;
                        }

                  if (!add_DN_object(subj,v->value,def,value,nid,
                        n_min,n_max, chtype, mval))
                        return 0;
                  }
            if (X509_NAME_entry_count(subj) == 0)
                  {
                  BIO_printf(bio_err,"error, no objects specified in config file\n");
                  return 0;
                  }

            if (attribs)
                  {
                  if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0) && (!batch))
                        {
                        BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n");
                        BIO_printf(bio_err,"to be sent with your certificate request\n");
                        }

                  i= -1;
start2:                 for (;;)
                        {
                        i++;
                        if ((attr_sk == NULL) ||
                                  (sk_CONF_VALUE_num(attr_sk) <= i))
                              break;

                        v=sk_CONF_VALUE_value(attr_sk,i);
                        type=v->name;
                        if ((nid=OBJ_txt2nid(type)) == NID_undef)
                              goto start2;

                        if (BIO_snprintf(buf,sizeof buf,"%s_default",type)
                              >= (int)sizeof(buf))
                           {
                           BIO_printf(bio_err,"Name '%s' too long\n",v->name);
                           return 0;
                           }

                        if ((def=NCONF_get_string(req_conf,attr_sect,buf))
                              == NULL)
                              {
                              ERR_clear_error();
                              def="";
                              }
                        
                        
                        BIO_snprintf(buf,sizeof buf,"%s_value",type);
                        if ((value=NCONF_get_string(req_conf,attr_sect,buf))
                              == NULL)
                              {
                              ERR_clear_error();
                              value=NULL;
                              }

                        BIO_snprintf(buf,sizeof buf,"%s_min",type);
                        if (!NCONF_get_number(req_conf,attr_sect,buf, &n_min))
                              n_min = -1;

                        BIO_snprintf(buf,sizeof buf,"%s_max",type);
                        if (!NCONF_get_number(req_conf,attr_sect,buf, &n_max))
                              n_max = -1;

                        if (!add_attribute_object(req,
                              v->value,def,value,nid,n_min,n_max, chtype))
                              return 0;
                        }
                  }
            }
      else
            {
            BIO_printf(bio_err,"No template, please set one up.\n");
            return 0;
            }

      return 1;

      }

static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
                  STACK_OF(CONF_VALUE) *attr_sk, int attribs, unsigned long chtype)
      {
      int i;
      char *p,*q;
      char *type;
      CONF_VALUE *v;
      X509_NAME *subj;

      subj = X509_REQ_get_subject_name(req);

      for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++)
            {
            int mval;
            v=sk_CONF_VALUE_value(dn_sk,i);
            p=q=NULL;
            type=v->name;
            /* Skip past any leading X. X: X, etc to allow for
             * multiple instances 
             */
            for(p = v->name; *p ; p++) 
#ifndef CHARSET_EBCDIC
                  if ((*p == ':') || (*p == ',') || (*p == '.')) {
#else
                  if ((*p == os_toascii[':']) || (*p == os_toascii[',']) || (*p == os_toascii['.'])) {
#endif
                        p++;
                        if(*p) type = p;
                        break;
                  }
#ifndef CHARSET_EBCDIC
            if (*p == '+')
#else
            if (*p == os_toascii['+'])
#endif
                  {
                  p++;
                  mval = -1;
                  }
            else
                  mval = 0;
            if (!X509_NAME_add_entry_by_txt(subj,type, chtype,
                        (unsigned char *) v->value,-1,-1,mval)) return 0;

            }

            if (!X509_NAME_entry_count(subj))
                  {
                  BIO_printf(bio_err,"error, no objects specified in config file\n");
                  return 0;
                  }
            if (attribs)
                  {
                  for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++)
                        {
                        v=sk_CONF_VALUE_value(attr_sk,i);
                        if(!X509_REQ_add1_attr_by_txt(req, v->name, chtype,
                              (unsigned char *)v->value, -1)) return 0;
                        }
                  }
      return 1;
      }


static int add_DN_object(X509_NAME *n, char *text, const char *def, char *value,
           int nid, int n_min, int n_max, unsigned long chtype, int mval)
      {
      int i,ret=0;
      MS_STATIC char buf[1024];
start:
      if (!batch) BIO_printf(bio_err,"%s [%s]:",text,def);
      (void)BIO_flush(bio_err);
      if(value != NULL)
            {
            BUF_strlcpy(buf,value,sizeof buf);
            BUF_strlcat(buf,"\n",sizeof buf);
            BIO_printf(bio_err,"%s\n",value);
            }
      else
            {
            buf[0]='\0';
            if (!batch)
                  {
                  fgets(buf,sizeof buf,stdin);
                  }
            else
                  {
                  buf[0] = '\n';
                  buf[1] = '\0';
                  }
            }

      if (buf[0] == '\0') return(0);
      else if (buf[0] == '\n')
            {
            if ((def == NULL) || (def[0] == '\0'))
                  return(1);
            BUF_strlcpy(buf,def,sizeof buf);
            BUF_strlcat(buf,"\n",sizeof buf);
            }
      else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);

      i=strlen(buf);
      if (buf[i-1] != '\n')
            {
            BIO_printf(bio_err,"weird input :-(\n");
            return(0);
            }
      buf[--i]='\0';
#ifdef CHARSET_EBCDIC
      ebcdic2ascii(buf, buf, i);
#endif
      if(!req_check_len(i, n_min, n_max)) goto start;
      if (!X509_NAME_add_entry_by_NID(n,nid, chtype,
                        (unsigned char *) buf, -1,-1,mval)) goto err;
      ret=1;
err:
      return(ret);
      }

static int add_attribute_object(X509_REQ *req, char *text, const char *def,
                        char *value, int nid, int n_min,
                        int n_max, unsigned long chtype)
      {
      int i;
      static char buf[1024];

start:
      if (!batch) BIO_printf(bio_err,"%s [%s]:",text,def);
      (void)BIO_flush(bio_err);
      if (value != NULL)
            {
            BUF_strlcpy(buf,value,sizeof buf);
            BUF_strlcat(buf,"\n",sizeof buf);
            BIO_printf(bio_err,"%s\n",value);
            }
      else
            {
            buf[0]='\0';
            if (!batch)
                  {
                  fgets(buf,sizeof buf,stdin);
                  }
            else
                  {
                  buf[0] = '\n';
                  buf[1] = '\0';
                  }
            }

      if (buf[0] == '\0') return(0);
      else if (buf[0] == '\n')
            {
            if ((def == NULL) || (def[0] == '\0'))
                  return(1);
            BUF_strlcpy(buf,def,sizeof buf);
            BUF_strlcat(buf,"\n",sizeof buf);
            }
      else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);

      i=strlen(buf);
      if (buf[i-1] != '\n')
            {
            BIO_printf(bio_err,"weird input :-(\n");
            return(0);
            }
      buf[--i]='\0';
#ifdef CHARSET_EBCDIC
      ebcdic2ascii(buf, buf, i);
#endif
      if(!req_check_len(i, n_min, n_max)) goto start;

      if(!X509_REQ_add1_attr_by_NID(req, nid, chtype,
                              (unsigned char *)buf, -1)) {
            BIO_printf(bio_err, "Error adding attribute\n");
            ERR_print_errors(bio_err);
            goto err;
      }

      return(1);
err:
      return(0);
      }

#ifndef OPENSSL_NO_RSA
static int MS_CALLBACK req_cb(int p, int n, BN_GENCB *cb)
      {
      char c='*';

      if (p == 0) c='.';
      if (p == 1) c='+';
      if (p == 2) c='*';
      if (p == 3) c='\n';
      BIO_write(cb->arg,&c,1);
      (void)BIO_flush(cb->arg);
#ifdef LINT
      p=n;
#endif
      return 1;
      }
#endif

static int req_check_len(int len, int n_min, int n_max)
      {
      if ((n_min > 0) && (len < n_min))
            {
            BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",n_min);
            return(0);
            }
      if ((n_max >= 0) && (len > n_max))
            {
            BIO_printf(bio_err,"string is too long, it needs to be less than  %d bytes long\n",n_max);
            return(0);
            }
      return(1);
      }

/* Check if the end of a string matches 'end' */
static int check_end(const char *str, const char *end)
{
      int elen, slen;   
      const char *tmp;
      elen = strlen(end);
      slen = strlen(str);
      if(elen > slen) return 1;
      tmp = str + slen - elen;
      return strcmp(tmp, end);
}

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