Massive constification.

[thirdparty/openssl.git] / apps / ca.c

/* apps/ca.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.]
 */

/* The PPKI stuff has been donated by Jeff Barber <jeffb@issl.atl.hp.com> */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "apps.h"
#include "bio.h"
#include "err.h"
#include "bn.h"
#include "txt_db.h"
#include "evp.h"
#include "x509.h"
#include "x509v3.h"
#include "objects.h"
#include "pem.h"
#include "conf.h"

#ifndef W_OK
#include <sys/file.h>
#endif

#undef PROG
#define PROG ca_main

#define BASE_SECTION    "ca"
#define CONFIG_FILE "lib/openssl.cnf"

#define ENV_DEFAULT_CA          "default_ca"

#define ENV_DIR                 "dir"
#define ENV_CERTS               "certs"
#define ENV_CRL_DIR             "crl_dir"
#define ENV_CA_DB               "CA_DB"
#define ENV_NEW_CERTS_DIR       "new_certs_dir"
#define ENV_CERTIFICATE         "certificate"
#define ENV_SERIAL              "serial"
#define ENV_CRL                 "crl"
#define ENV_PRIVATE_KEY         "private_key"
#define ENV_RANDFILE            "RANDFILE"
#define ENV_DEFAULT_DAYS        "default_days"
#define ENV_DEFAULT_STARTDATE   "default_startdate"
#define ENV_DEFAULT_CRL_DAYS    "default_crl_days"
#define ENV_DEFAULT_CRL_HOURS   "default_crl_hours"
#define ENV_DEFAULT_MD          "default_md"
#define ENV_PRESERVE            "preserve"
#define ENV_POLICY              "policy"
#define ENV_EXTENSIONS          "x509_extensions"
#define ENV_CRLEXT              "crl_extensions"
#define ENV_MSIE_HACK           "msie_hack"

#define ENV_DATABASE            "database"

#define DB_type         0
#define DB_exp_date     1
#define DB_rev_date     2
#define DB_serial       3       /* index - unique */
#define DB_file         4       
#define DB_name         5       /* index - unique for active */
#define DB_NUMBER       6

#define DB_TYPE_REV     'R'
#define DB_TYPE_EXP     'E'
#define DB_TYPE_VAL     'V'

static char *ca_usage[]={
"usage: ca args\n",
"\n",
" -verbose        - Talk alot while doing things\n",
" -config file    - A config file\n",
" -name arg       - The particular CA definition to use\n",
" -gencrl         - Generate a new CRL\n",
" -crldays days   - Days is when the next CRL is due\n",
" -crlhours hours - Hours is when the next CRL is due\n",
" -days arg       - number of days to certify the certificate for\n",
" -md arg         - md to use, one of md2, md5, sha or sha1\n",
" -policy arg     - The CA 'policy' to support\n",
" -keyfile arg    - PEM private key file\n",
" -key arg        - key to decode the private key if it is encrypted\n",
" -cert file      - The CA certificate\n",
" -in file        - The input PEM encoded certificate request(s)\n",
" -out file       - Where to put the output file(s)\n",
" -outdir dir     - Where to put output certificates\n",
" -infiles ....   - The last argument, requests to process\n",
" -spkac file     - File contains DN and signed public key and challenge\n",
" -ss_cert file   - File contains a self signed cert to sign\n",
" -preserveDN     - Don't re-order the DN\n",
" -batch          - Don't ask questions\n",
" -msie_hack      - msie modifications to handle all those universal strings\n",
" -revoke file    - Revoke a certificate (given in file)\n",
NULL
};

#ifdef EFENCE
extern int EF_PROTECT_FREE;
extern int EF_PROTECT_BELOW;
extern int EF_ALIGNMENT;
#endif

#ifndef NOPROTO
static int add_oid_section(LHASH *conf);
static void lookup_fail(char *name,char *tag);
static int MS_CALLBACK key_callback(char *buf,int len,int verify);
static unsigned long index_serial_hash(char **a);
static int index_serial_cmp(char **a, char **b);
static unsigned long index_name_hash(char **a);
static int index_name_qual(char **a);
static int index_name_cmp(char **a,char **b);
static BIGNUM *load_serial(char *serialfile);
static int save_serial(char *serialfile, BIGNUM *serial);
static int certify(X509 **xret, char *infile,EVP_PKEY *pkey,X509 *x509,
                   const EVP_MD *dgst,STACK *policy,TXT_DB *db,BIGNUM *serial,
                   char *startdate,int days,int batch,char *ext_sect,
                   LHASH *conf,int verbose);
static int certify_cert(X509 **xret, char *infile,EVP_PKEY *pkey,X509 *x509,
                        const EVP_MD *dgst,STACK *policy,TXT_DB *db,
                        BIGNUM *serial,char *startdate,int days,int batch,
                        char *ext_sect, LHASH *conf,int verbose);
static int certify_spkac(X509 **xret, char *infile,EVP_PKEY *pkey,X509 *x509,
                         const EVP_MD *dgst,STACK *policy,TXT_DB *db,
                         BIGNUM *serial,char *startdate,int days,
                         char *ext_sect,LHASH *conf,int verbose);
static int fix_data(int nid, int *type);
static void write_new_certificate(BIO *bp, X509 *x, int output_der);
static int do_body(X509 **xret, EVP_PKEY *pkey, X509 *x509, const EVP_MD *dgst,
        STACK *policy, TXT_DB *db, BIGNUM *serial, char *startdate,
        int days, int batch, int verbose, X509_REQ *req, char *ext_sect,
        LHASH *conf);
static int do_revoke(X509 *x509, TXT_DB *db);
static int check_time_format(char *str);
#else
static int add_oid_section();
static void lookup_fail();
static int MS_CALLBACK key_callback();
static unsigned long index_serial_hash();
static int index_serial_cmp();
static unsigned long index_name_hash();
static int index_name_qual();
static int index_name_cmp();
static int fix_data();
static BIGNUM *load_serial();
static int save_serial();
static int certify();
static int certify_cert();
static int certify_spkac();
static void write_new_certificate();
static int do_body();
static int do_revoke();
static int check_time_format();
#endif

static LHASH *conf;
static char *key=NULL;
static char *section=NULL;

static int preserve=0;
static int msie_hack=0;

int MAIN(argc, argv)
int argc;
char **argv;
        {
        int total=0;
        int total_done=0;
        int badops=0;
        int ret=1;
        int req=0;
        int verbose=0;
        int gencrl=0;
        int dorevoke=0;
        long crldays=0;
        long crlhours=0;
        long errorline= -1;
        char *configfile=NULL;
        char *md=NULL;
        char *policy=NULL;
        char *keyfile=NULL;
        char *certfile=NULL;
        char *infile=NULL;
        char *spkac_file=NULL;
        char *ss_cert_file=NULL;
        EVP_PKEY *pkey=NULL;
        int output_der = 0;
        char *outfile=NULL;
        char *outdir=NULL;
        char *serialfile=NULL;
        char *extensions=NULL;
        char *crl_ext=NULL;
        BIGNUM *serial=NULL;
        char *startdate=NULL;
        int days=0;
        int batch=0;
        X509 *x509=NULL;
        X509 *x=NULL;
        BIO *in=NULL,*out=NULL,*Sout=NULL,*Cout=NULL;
        char *dbfile=NULL;
        TXT_DB *db=NULL;
        X509_CRL *crl=NULL;
        X509_CRL_INFO *ci=NULL;
        X509_REVOKED *r=NULL;
        char **pp,*p,*f;
        int i,j;
        long l;
        const EVP_MD *dgst=NULL;
        STACK *attribs=NULL;
        STACK *cert_sk=NULL;
        BIO *hex=NULL;
#undef BSIZE
#define BSIZE 256
        MS_STATIC char buf[3][BSIZE];

#ifdef EFENCE
EF_PROTECT_FREE=1;
EF_PROTECT_BELOW=1;
EF_ALIGNMENT=0;
#endif

        apps_startup();

        X509V3_add_standard_extensions();

        preserve=0;
        if (bio_err == NULL)
                if ((bio_err=BIO_new(BIO_s_file())) != NULL)
                        BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);

        argc--;
        argv++;
        while (argc >= 1)
                {
                if      (strcmp(*argv,"-verbose") == 0)
                        verbose=1;
                else if (strcmp(*argv,"-config") == 0)
                        {
                        if (--argc < 1) goto bad;
                        configfile= *(++argv);
                        }
                else if (strcmp(*argv,"-name") == 0)
                        {
                        if (--argc < 1) goto bad;
                        section= *(++argv);
                        }
                else if (strcmp(*argv,"-startdate") == 0)
                        {
                        if (--argc < 1) goto bad;
                        startdate= *(++argv);
                        }
                else if (strcmp(*argv,"-days") == 0)
                        {
                        if (--argc < 1) goto bad;
                        days=atoi(*(++argv));
                        }
                else if (strcmp(*argv,"-md") == 0)
                        {
                        if (--argc < 1) goto bad;
                        md= *(++argv);
                        }
                else if (strcmp(*argv,"-policy") == 0)
                        {
                        if (--argc < 1) goto bad;
                        policy= *(++argv);
                        }
                else if (strcmp(*argv,"-keyfile") == 0)
                        {
                        if (--argc < 1) goto bad;
                        keyfile= *(++argv);
                        }
                else if (strcmp(*argv,"-key") == 0)
                        {
                        if (--argc < 1) goto bad;
                        key= *(++argv);
                        }
                else if (strcmp(*argv,"-cert") == 0)
                        {
                        if (--argc < 1) goto bad;
                        certfile= *(++argv);
                        }
                else if (strcmp(*argv,"-in") == 0)
                        {
                        if (--argc < 1) goto bad;
                        infile= *(++argv);
                        req=1;
                        }
                else if (strcmp(*argv,"-out") == 0)
                        {
                        if (--argc < 1) goto bad;
                        outfile= *(++argv);
                        }
                else if (strcmp(*argv,"-outdir") == 0)
                        {
                        if (--argc < 1) goto bad;
                        outdir= *(++argv);
                        }
                else if (strcmp(*argv,"-batch") == 0)
                        batch=1;
                else if (strcmp(*argv,"-preserveDN") == 0)
                        preserve=1;
                else if (strcmp(*argv,"-gencrl") == 0)
                        gencrl=1;
                else if (strcmp(*argv,"-msie_hack") == 0)
                        msie_hack=1;
                else if (strcmp(*argv,"-crldays") == 0)
                        {
                        if (--argc < 1) goto bad;
                        crldays= atol(*(++argv));
                        }
                else if (strcmp(*argv,"-crlhours") == 0)
                        {
                        if (--argc < 1) goto bad;
                        crlhours= atol(*(++argv));
                        }
                else if (strcmp(*argv,"-infiles") == 0)
                        {
                        argc--;
                        argv++;
                        req=1;
                        break;
                        }
                else if (strcmp(*argv, "-ss_cert") == 0)
                        {
                        if (--argc < 1) goto bad;
                        ss_cert_file = *(++argv);
                        req=1;
                        }
                else if (strcmp(*argv, "-spkac") == 0)
                        {
                        if (--argc < 1) goto bad;
                        spkac_file = *(++argv);
                        req=1;
                        }
                else if (strcmp(*argv,"-revoke") == 0)
                        {
                        if (--argc < 1) goto bad;
                        infile= *(++argv);
                        dorevoke=1;
                        }
                else
                        {
bad:
                        BIO_printf(bio_err,"unknown option %s\n",*argv);
                        badops=1;
                        break;
                        }
                argc--;
                argv++;
                }

        if (badops)
                {
                for (pp=ca_usage; (*pp != NULL); pp++)
                        BIO_printf(bio_err,*pp);
                goto err;
                }

        ERR_load_crypto_strings();

        /*****************************************************************/
        if (configfile == NULL)
                {
                /* We will just use 'buf[0]' as a temporary buffer.  */
                strncpy(buf[0],X509_get_default_cert_area(),
                        sizeof(buf[0])-2-sizeof(CONFIG_FILE));
                strcat(buf[0],"/");
                strcat(buf[0],CONFIG_FILE);
                configfile=buf[0];
                }

        BIO_printf(bio_err,"Using configuration from %s\n",configfile);
        if ((conf=CONF_load(NULL,configfile,&errorline)) == NULL)
                {
                if (errorline <= 0)
                        BIO_printf(bio_err,"error loading the config file '%s'\n",
                                configfile);
                else
                        BIO_printf(bio_err,"error on line %ld of config file '%s'\n"
                                ,errorline,configfile);
                goto err;
                }

        /* Lets get the config section we are using */
        if (section == NULL)
                {
                section=CONF_get_string(conf,BASE_SECTION,ENV_DEFAULT_CA);
                if (section == NULL)
                        {
                        lookup_fail(BASE_SECTION,ENV_DEFAULT_CA);
                        goto err;
                        }
                }

        if (conf != NULL)
                {
                p=CONF_get_string(conf,NULL,"oid_file");
                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);
                                */
                                ERR_clear_error();
                                }
                        else
                                {
                                OBJ_create_objects(oid_bio);
                                BIO_free(oid_bio);
                                }
                        }
                }
                if(!add_oid_section(conf)) {
                        ERR_print_errors(bio_err);
                        goto err;
                }

        in=BIO_new(BIO_s_file());
        out=BIO_new(BIO_s_file());
        Sout=BIO_new(BIO_s_file());
        Cout=BIO_new(BIO_s_file());
        if ((in == NULL) || (out == NULL) || (Sout == NULL) || (Cout == NULL))
                {
                ERR_print_errors(bio_err);
                goto err;
                }

        /*****************************************************************/
        /* we definitly need an public key, so lets get it */

        if ((keyfile == NULL) && ((keyfile=CONF_get_string(conf,
                section,ENV_PRIVATE_KEY)) == NULL))
                {
                lookup_fail(section,ENV_PRIVATE_KEY);
                goto err;
                }
        if (BIO_read_filename(in,keyfile) <= 0)
                {
                perror(keyfile);
                BIO_printf(bio_err,"trying to load CA private key\n");
                goto err;
                }
        if (key == NULL)
                pkey=PEM_read_bio_PrivateKey(in,NULL,NULL);
        else
                {
                pkey=PEM_read_bio_PrivateKey(in,NULL,key_callback);
                memset(key,0,strlen(key));
                }
        if (pkey == NULL)
                {
                BIO_printf(bio_err,"unable to load CA private key\n");
                goto err;
                }

        /*****************************************************************/
        /* we need a certificate */
        if ((certfile == NULL) && ((certfile=CONF_get_string(conf,
                section,ENV_CERTIFICATE)) == NULL))
                {
                lookup_fail(section,ENV_CERTIFICATE);
                goto err;
                }
        if (BIO_read_filename(in,certfile) <= 0)
                {
                perror(certfile);
                BIO_printf(bio_err,"trying to load CA certificate\n");
                goto err;
                }
        x509=PEM_read_bio_X509(in,NULL,NULL);
        if (x509 == NULL)
                {
                BIO_printf(bio_err,"unable to load CA certificate\n");
                goto err;
                }

        if (!X509_check_private_key(x509,pkey))
                {
                BIO_printf(bio_err,"CA certificate and CA private key do not match\n");
                goto err;
                }

        f=CONF_get_string(conf,BASE_SECTION,ENV_PRESERVE);
        if ((f != NULL) && ((*f == 'y') || (*f == 'Y')))
                preserve=1;
        f=CONF_get_string(conf,BASE_SECTION,ENV_MSIE_HACK);
        if ((f != NULL) && ((*f == 'y') || (*f == 'Y')))
                msie_hack=1;

        /*****************************************************************/
        /* lookup where to write new certificates */
        if ((outdir == NULL) && (req))
                {
                struct stat sb;

                if ((outdir=CONF_get_string(conf,section,ENV_NEW_CERTS_DIR))
                        == NULL)
                        {
                        BIO_printf(bio_err,"there needs to be defined a directory for new certificate to be placed in\n");
                        goto err;
                        }
                if (access(outdir,R_OK|W_OK|X_OK) != 0)
                        {
                        BIO_printf(bio_err,"I am unable to acces the %s directory\n",outdir);
                        perror(outdir);
                        goto err;
                        }

                if (stat(outdir,&sb) != 0)
                        {
                        BIO_printf(bio_err,"unable to stat(%s)\n",outdir);
                        perror(outdir);
                        goto err;
                        }
                if (!(sb.st_mode & S_IFDIR))
                        {
                        BIO_printf(bio_err,"%s need to be a directory\n",outdir);
                        perror(outdir);
                        goto err;
                        }
                }

        /*****************************************************************/
        /* we need to load the database file */
        if ((dbfile=CONF_get_string(conf,section,ENV_DATABASE)) == NULL)
                {
                lookup_fail(section,ENV_DATABASE);
                goto err;
                }
        if (BIO_read_filename(in,dbfile) <= 0)
                {
                perror(dbfile);
                BIO_printf(bio_err,"unable to open '%s'\n",dbfile);
                goto err;
                }
        db=TXT_DB_read(in,DB_NUMBER);
        if (db == NULL) goto err;

        /* Lets check some fields */
        for (i=0; i<sk_num(db->data); i++)
                {
                pp=(char **)sk_value(db->data,i);
                if ((pp[DB_type][0] != DB_TYPE_REV) &&
                        (pp[DB_rev_date][0] != '\0'))
                        {
                        BIO_printf(bio_err,"entry %d: not revoked yet, but has a revocation date\n",i+1);
                        goto err;
                        }
                if ((pp[DB_type][0] == DB_TYPE_REV) &&
                        !check_time_format(pp[DB_rev_date]))
                        {
                        BIO_printf(bio_err,"entry %d: invalid revocation date\n",
                                i+1);
                        goto err;
                        }
                if (!check_time_format(pp[DB_exp_date]))
                        {
                        BIO_printf(bio_err,"entry %d: invalid expiry date\n",i+1);
                        goto err;
                        }
                p=pp[DB_serial];
                j=strlen(p);
                if ((j&1) || (j < 2))
                        {
                        BIO_printf(bio_err,"entry %d: bad serial number length (%d)\n",i+1,j);
                        goto err;
                        }
                while (*p)
                        {
                        if (!(  ((*p >= '0') && (*p <= '9')) ||
                                ((*p >= 'A') && (*p <= 'F')) ||
                                ((*p >= 'a') && (*p <= 'f')))  )
                                {
                                BIO_printf(bio_err,"entry %d: bad serial number characters, char pos %ld, char is '%c'\n",i+1,(long)(p-pp[DB_serial]),*p);
                                goto err;
                                }
                        p++;
                        }
                }
        if (verbose)
                {
                BIO_set_fp(out,stdout,BIO_NOCLOSE|BIO_FP_TEXT); /* cannot fail */
                TXT_DB_write(out,db);
                BIO_printf(bio_err,"%d entries loaded from the database\n",
                        db->data->num);
                BIO_printf(bio_err,"generating indexs\n");
                }
        
        if (!TXT_DB_create_index(db,DB_serial,NULL,index_serial_hash,
                index_serial_cmp))
                {
                BIO_printf(bio_err,"error creating serial number index:(%ld,%ld,%ld)\n",db->error,db->arg1,db->arg2);
                goto err;
                }

        if (!TXT_DB_create_index(db,DB_name,index_name_qual,index_name_hash,
                index_name_cmp))
                {
                BIO_printf(bio_err,"error creating name index:(%ld,%ld,%ld)\n",
                        db->error,db->arg1,db->arg2);
                goto err;
                }

        /*****************************************************************/
        if (req || gencrl)
                {
                if (outfile != NULL)
                        {

                        if (BIO_write_filename(Sout,outfile) <= 0)
                                {
                                perror(outfile);
                                goto err;
                                }
                        }
                else
                        BIO_set_fp(Sout,stdout,BIO_NOCLOSE|BIO_FP_TEXT);
                }

        if (req)
                {
                if ((md == NULL) && ((md=CONF_get_string(conf,
                        section,ENV_DEFAULT_MD)) == NULL))
                        {
                        lookup_fail(section,ENV_DEFAULT_MD);
                        goto err;
                        }
                if ((dgst=EVP_get_digestbyname(md)) == NULL)
                        {
                        BIO_printf(bio_err,"%s is an unsupported message digest type\n",md);
                        goto err;
                        }
                if (verbose)
                        BIO_printf(bio_err,"message digest is %s\n",
                                OBJ_nid2ln(dgst->type));
                if ((policy == NULL) && ((policy=CONF_get_string(conf,
                        section,ENV_POLICY)) == NULL))
                        {
                        lookup_fail(section,ENV_POLICY);
                        goto err;
                        }
                if (verbose)
                        BIO_printf(bio_err,"policy is %s\n",policy);

                if ((serialfile=CONF_get_string(conf,section,ENV_SERIAL))
                        == NULL)
                        {
                        lookup_fail(section,ENV_SERIAL);
                        goto err;
                        }

                extensions=CONF_get_string(conf,section,ENV_EXTENSIONS);
                if(extensions) {
                        /* Check syntax of file */
                        if(!X509V3_EXT_check_conf(conf, extensions)) {
                                BIO_printf(bio_err,
                                 "Error Loading extension section %s\n",
                                                                 extensions);
                                ret = 1;
                                goto err;
                        }
                }

                if (startdate == NULL)
                        {
                        startdate=(char *)CONF_get_string(conf,section,
                                ENV_DEFAULT_STARTDATE);
                        if (startdate == NULL)
                                startdate="today";
                        else
                                {
                                if (!ASN1_UTCTIME_set_string(NULL,startdate))
                                        {
                                        BIO_printf(bio_err,"start date is invalid, it should be YYMMDDHHMMSS\n");
                                        goto err;
                                        }
                                }
                        }

                if (days == 0)
                        {
                        days=(int)CONF_get_number(conf,section,
                                ENV_DEFAULT_DAYS);
                        }
                if (days == 0)
                        {
                        BIO_printf(bio_err,"cannot lookup how many days to certify for\n");
                        goto err;
                        }

                if ((serial=load_serial(serialfile)) == NULL)
                        {
                        BIO_printf(bio_err,"error while loading serial number\n");
                        goto err;
                        }
                if (verbose)
                        {
                        if ((f=BN_bn2hex(serial)) == NULL) goto err;
                        BIO_printf(bio_err,"next serial number is %s\n",f);
                        Free(f);
                        }

                if ((attribs=CONF_get_section(conf,policy)) == NULL)
                        {
                        BIO_printf(bio_err,"unable to find 'section' for %s\n",policy);
                        goto err;
                        }

                if ((cert_sk=sk_new_null()) == NULL)
                        {
                        BIO_printf(bio_err,"Malloc failure\n");
                        goto err;
                        }
                if (spkac_file != NULL)
                        {
                        total++;
                        j=certify_spkac(&x,spkac_file,pkey,x509,dgst,attribs,db,
                                serial,startdate,days,extensions,conf,verbose);
                        if (j < 0) goto err;
                        if (j > 0)
                                {
                                total_done++;
                                BIO_printf(bio_err,"\n");
                                if (!BN_add_word(serial,1)) goto err;
                                if (!sk_push(cert_sk,(char *)x))
                                        {
                                        BIO_printf(bio_err,"Malloc failure\n");
                                        goto err;
                                        }
                                if (outfile)
                                        {
                                        output_der = 1;
                                        batch = 1;
                                        }
                                }
                        }
                if (ss_cert_file != NULL)
                        {
                        total++;
                        j=certify_cert(&x,ss_cert_file,pkey,x509,dgst,attribs,
                                db,serial,startdate,days,batch,
                                extensions,conf,verbose);
                        if (j < 0) goto err;
                        if (j > 0)
                                {
                                total_done++;
                                BIO_printf(bio_err,"\n");
                                if (!BN_add_word(serial,1)) goto err;
                                if (!sk_push(cert_sk,(char *)x))
                                        {
                                        BIO_printf(bio_err,"Malloc failure\n");
                                        goto err;
                                        }
                                }
                        }
                if (infile != NULL)
                        {
                        total++;
                        j=certify(&x,infile,pkey,x509,dgst,attribs,db,
                                serial,startdate,days,batch,
                                extensions,conf,verbose);
                        if (j < 0) goto err;
                        if (j > 0)
                                {
                                total_done++;
                                BIO_printf(bio_err,"\n");
                                if (!BN_add_word(serial,1)) goto err;
                                if (!sk_push(cert_sk,(char *)x))
                                        {
                                        BIO_printf(bio_err,"Malloc failure\n");
                                        goto err;
                                        }
                                }
                        }
                for (i=0; i<argc; i++)
                        {
                        total++;
                        j=certify(&x,argv[i],pkey,x509,dgst,attribs,db,
                                serial,startdate,days,batch,
                                extensions,conf,verbose);
                        if (j < 0) goto err;
                        if (j > 0)
                                {
                                total_done++;
                                BIO_printf(bio_err,"\n");
                                if (!BN_add_word(serial,1)) goto err;
                                if (!sk_push(cert_sk,(char *)x))
                                        {
                                        BIO_printf(bio_err,"Malloc failure\n");
                                        goto err;
                                        }
                                }
                        }       
                /* we have a stack of newly certified certificates
                 * and a data base and serial number that need
                 * updating */

                if (sk_num(cert_sk) > 0)
                        {
                        if (!batch)
                                {
                                BIO_printf(bio_err,"\n%d out of %d certificate requests certified, commit? [y/n]",total_done,total);
                                BIO_flush(bio_err);
                                buf[0][0]='\0';
                                fgets(buf[0],10,stdin);
                                if ((buf[0][0] != 'y') && (buf[0][0] != 'Y'))
                                        {
                                        BIO_printf(bio_err,"CERTIFICATION CANCELED\n"); 
                                        ret=0;
                                        goto err;
                                        }
                                }

                        BIO_printf(bio_err,"Write out database with %d new entries\n",sk_num(cert_sk));

                        strncpy(buf[0],serialfile,BSIZE-4);
                        strcat(buf[0],".new");

                        if (!save_serial(buf[0],serial)) goto err;

                        strncpy(buf[1],dbfile,BSIZE-4);
                        strcat(buf[1],".new");
                        if (BIO_write_filename(out,buf[1]) <= 0)
                                {
                                perror(dbfile);
                                BIO_printf(bio_err,"unable to open '%s'\n",dbfile);
                                goto err;
                                }
                        l=TXT_DB_write(out,db);
                        if (l <= 0) goto err;
                        }
        
                if (verbose)
                        BIO_printf(bio_err,"writing new certificates\n");
                for (i=0; i<sk_num(cert_sk); i++)
                        {
                        int k;
                        unsigned char *n;

                        x=(X509 *)sk_value(cert_sk,i);

                        j=x->cert_info->serialNumber->length;
                        p=(char *)x->cert_info->serialNumber->data;
                        
                        strncpy(buf[2],outdir,BSIZE-(j*2)-6);
                        strcat(buf[2],"/");
                        n=(unsigned char *)&(buf[2][strlen(buf[2])]);
                        if (j > 0)
                                {
                                for (k=0; k<j; k++)
                                        {
                                        sprintf((char *)n,"%02X",(unsigned char)*(p++));
                                        n+=2;
                                        }
                                }
                        else
                                {
                                *(n++)='0';
                                *(n++)='0';
                                }
                        *(n++)='.'; *(n++)='p'; *(n++)='e'; *(n++)='m';
                        *n='\0';
                        if (verbose)
                                BIO_printf(bio_err,"writing %s\n",buf[2]);

                        if (BIO_write_filename(Cout,buf[2]) <= 0)
                                {
                                perror(buf[2]);
                                goto err;
                                }
                        write_new_certificate(Cout,x, 0);
                        write_new_certificate(Sout,x, output_der);
                        }

                if (sk_num(cert_sk))
                        {
                        /* Rename the database and the serial file */
                        strncpy(buf[2],serialfile,BSIZE-4);
                        strcat(buf[2],".old");
                        BIO_free(in);
                        BIO_free(out);
                        in=NULL;
                        out=NULL;
                        if (rename(serialfile,buf[2]) < 0)
                                {
                                BIO_printf(bio_err,"unabel to rename %s to %s\n",
                                        serialfile,buf[2]);
                                perror("reason");
                                goto err;
                                }
                        if (rename(buf[0],serialfile) < 0)
                                {
                                BIO_printf(bio_err,"unabel to rename %s to %s\n",
                                        buf[0],serialfile);
                                perror("reason");
                                rename(buf[2],serialfile);
                                goto err;
                                }

                        strncpy(buf[2],dbfile,BSIZE-4);
                        strcat(buf[2],".old");
                        if (rename(dbfile,buf[2]) < 0)
                                {
                                BIO_printf(bio_err,"unabel to rename %s to %s\n",
                                        dbfile,buf[2]);
                                perror("reason");
                                goto err;
                                }
                        if (rename(buf[1],dbfile) < 0)
                                {
                                BIO_printf(bio_err,"unabel to rename %s to %s\n",
                                        buf[1],dbfile);
                                perror("reason");
                                rename(buf[2],dbfile);
                                goto err;
                                }
                        BIO_printf(bio_err,"Data Base Updated\n");
                        }
                }
        
        /*****************************************************************/
        if (gencrl)
                {
                crl_ext=CONF_get_string(conf,section,ENV_CRLEXT);
                if(crl_ext) {
                        /* Check syntax of file */
                        if(!X509V3_EXT_check_conf(conf, crl_ext)) {
                                BIO_printf(bio_err,
                                 "Error Loading CRL extension section %s\n",
                                                                 crl_ext);
                                ret = 1;
                                goto err;
                        }
                }
                if ((hex=BIO_new(BIO_s_mem())) == NULL) goto err;

                if (!crldays && !crlhours)
                        {
                        crldays=CONF_get_number(conf,section,
                                ENV_DEFAULT_CRL_DAYS);
                        crlhours=CONF_get_number(conf,section,
                                ENV_DEFAULT_CRL_HOURS);
                        }
                if ((crldays == 0) && (crlhours == 0))
                        {
                        BIO_printf(bio_err,"cannot lookup how long until the next CRL is issuer\n");
                        goto err;
                        }

                if (verbose) BIO_printf(bio_err,"making CRL\n");
                if ((crl=X509_CRL_new()) == NULL) goto err;
                ci=crl->crl;
                X509_NAME_free(ci->issuer);
                ci->issuer=X509_NAME_dup(x509->cert_info->subject);
                if (ci->issuer == NULL) goto err;

                X509_gmtime_adj(ci->lastUpdate,0);
                if (ci->nextUpdate == NULL)
                        ci->nextUpdate=ASN1_UTCTIME_new();
                X509_gmtime_adj(ci->nextUpdate,(crldays*24+crlhours)*60*60);

                for (i=0; i<sk_num(db->data); i++)
                        {
                        pp=(char **)sk_value(db->data,i);
                        if (pp[DB_type][0] == DB_TYPE_REV)
                                {
                                if ((r=X509_REVOKED_new()) == NULL) goto err;
                                ASN1_STRING_set((ASN1_STRING *)
                                        r->revocationDate,
                                        (unsigned char *)pp[DB_rev_date],
                                        strlen(pp[DB_rev_date]));
                                /* strcpy(r->revocationDate,pp[DB_rev_date]);*/

                                BIO_reset(hex);
                                if (!BIO_puts(hex,pp[DB_serial]))
                                        goto err;
                                if (!a2i_ASN1_INTEGER(hex,r->serialNumber,
                                        buf[0],BSIZE)) goto err;

                                sk_push(ci->revoked,(char *)r);
                                }
                        }
                /* sort the data so it will be written in serial
                 * number order */
                sk_find(ci->revoked,NULL);
                for (i=0; i<sk_num(ci->revoked); i++)
                        {
                        r=(X509_REVOKED *)sk_value(ci->revoked,i);
                        r->sequence=i;
                        }

                /* we now have a CRL */
                if (verbose) BIO_printf(bio_err,"signing CRL\n");
                if (md != NULL)
                        {
                        if ((dgst=EVP_get_digestbyname(md)) == NULL)
                                {
                                BIO_printf(bio_err,"%s is an unsupported message digest type\n",md);
                                goto err;
                                }
                        }
                else
                    {
#ifndef NO_DSA
                    if (pkey->type == EVP_PKEY_DSA) 
                        dgst=EVP_dss1();
                    else
#endif
                        dgst=EVP_md5();
                    }

                /* Add any extensions asked for */

                if(crl_ext) {
                    X509V3_CTX crlctx;
                    if (ci->version == NULL)
                    if ((ci->version=ASN1_INTEGER_new()) == NULL) goto err;
                    ASN1_INTEGER_set(ci->version,1); /* version 2 CRL */
                    X509V3_set_ctx(&crlctx, x509, NULL, NULL, crl, 0);
                    X509V3_set_conf_lhash(&crlctx, conf);

                    if(!X509V3_EXT_CRL_add_conf(conf, &crlctx,
                                                 crl_ext, crl)) goto err;
                }

                if (!X509_CRL_sign(crl,pkey,dgst)) goto err;

                PEM_write_bio_X509_CRL(Sout,crl);
                }
        /*****************************************************************/
        if (dorevoke)
                {
                in=BIO_new(BIO_s_file());
                out=BIO_new(BIO_s_file());
                if ((in == NULL) || (out == NULL))
                        {
                        ERR_print_errors(bio_err);
                        goto err;
                        }
                if (infile == NULL) 
                        {
                        BIO_printf(bio_err,"no input files\n");
                        goto err;
                        }
                else
                        {
                        if (BIO_read_filename(in,infile) <= 0)
                                {
                                perror(infile);
                                BIO_printf(bio_err,"error trying to load '%s' certificate\n",infile);
                                goto err;
                                }
                        x509=PEM_read_bio_X509(in,NULL,NULL);
                        if (x509 == NULL)
                                {
                                BIO_printf(bio_err,"unable to load '%s' certificate\n",infile);
                                goto err;
                                }
                        j=do_revoke(x509,db);

                        strncpy(buf[0],dbfile,BSIZE-4);
                        strcat(buf[0],".new");
                        if (BIO_write_filename(out,buf[0]) <= 0)
                                {
                                perror(dbfile);
                                BIO_printf(bio_err,"unable to open '%s'\n",dbfile);
                                goto err;
                                }
                        j=TXT_DB_write(out,db);
                        if (j <= 0) goto err;
                        BIO_free(in);
                        BIO_free(out);
                        in=NULL;
                        out=NULL;
                        strncpy(buf[1],dbfile,BSIZE-4);
                        strcat(buf[1],".old");
                        if (rename(dbfile,buf[1]) < 0)
                                {
                                BIO_printf(bio_err,"unable to rename %s to %s\n", dbfile, buf[1]);
                                perror("reason");
                                goto err;
                                }
                        if (rename(buf[0],dbfile) < 0)
                                {
                                BIO_printf(bio_err,"unable to rename %s to %s\n", buf[0],dbfile);
                                perror("reason");
                                rename(buf[1],dbfile);
                                goto err;
                                }
                        BIO_printf(bio_err,"Data Base Updated\n"); 
                        }
                }
        /*****************************************************************/
        ret=0;
err:
        BIO_free(hex);
        BIO_free(Cout);
        BIO_free(Sout);
        BIO_free(out);
        BIO_free(in);

        sk_pop_free(cert_sk,X509_free);

        if (ret) ERR_print_errors(bio_err);
        BN_free(serial);
        TXT_DB_free(db);
        EVP_PKEY_free(pkey);
        X509_free(x509);
        X509_CRL_free(crl);
        CONF_free(conf);
        X509V3_EXT_cleanup();
        OBJ_cleanup();
        EXIT(ret);
        }

static void lookup_fail(name,tag)
char *name;
char *tag;
        {
        BIO_printf(bio_err,"variable lookup failed for %s::%s\n",name,tag);
        }

static int MS_CALLBACK key_callback(buf,len,verify)
char *buf;
int len,verify;
        {
        int i;

        if (key == NULL) return(0);
        i=strlen(key);
        i=(i > len)?len:i;
        memcpy(buf,key,i);
        return(i);
        }

static unsigned long index_serial_hash(a)
char **a;
        {
        char *n;

        n=a[DB_serial];
        while (*n == '0') n++;
        return(lh_strhash(n));
        }

static int index_serial_cmp(a,b)
char **a;
char **b;
        {
        char *aa,*bb;

        for (aa=a[DB_serial]; *aa == '0'; aa++);
        for (bb=b[DB_serial]; *bb == '0'; bb++);
        return(strcmp(aa,bb));
        }

static unsigned long index_name_hash(a)
char **a;
        { return(lh_strhash(a[DB_name])); }

static int index_name_qual(a)
char **a;
        { return(a[0][0] == 'V'); }

static int index_name_cmp(a,b)
char **a;
char **b;
        { return(strcmp(a[DB_name],b[DB_name])); }

static BIGNUM *load_serial(serialfile)
char *serialfile;
        {
        BIO *in=NULL;
        BIGNUM *ret=NULL;
        MS_STATIC char buf[1024];
        ASN1_INTEGER *ai=NULL;

        if ((in=BIO_new(BIO_s_file())) == NULL)
                {
                ERR_print_errors(bio_err);
                goto err;
                }

        if (BIO_read_filename(in,serialfile) <= 0)
                {
                perror(serialfile);
                goto err;
                }
        ai=ASN1_INTEGER_new();
        if (ai == NULL) goto err;
        if (!a2i_ASN1_INTEGER(in,ai,buf,1024))
                {
                BIO_printf(bio_err,"unable to load number from %s\n",
                        serialfile);
                goto err;
                }
        ret=ASN1_INTEGER_to_BN(ai,NULL);
        if (ret == NULL)
                {
                BIO_printf(bio_err,"error converting number from bin to BIGNUM");
                goto err;
                }
err:
        if (in != NULL) BIO_free(in);
        if (ai != NULL) ASN1_INTEGER_free(ai);
        return(ret);
        }

static int save_serial(serialfile,serial)
char *serialfile;
BIGNUM *serial;
        {
        BIO *out;
        int ret=0;
        ASN1_INTEGER *ai=NULL;

        out=BIO_new(BIO_s_file());
        if (out == NULL)
                {
                ERR_print_errors(bio_err);
                goto err;
                }
        if (BIO_write_filename(out,serialfile) <= 0)
                {
                perror(serialfile);
                goto err;
                }

        if ((ai=BN_to_ASN1_INTEGER(serial,NULL)) == NULL)
                {
                BIO_printf(bio_err,"error converting serial to ASN.1 format\n");
                goto err;
                }
        i2a_ASN1_INTEGER(out,ai);
        BIO_puts(out,"\n");
        ret=1;
err:
        if (out != NULL) BIO_free(out);
        if (ai != NULL) ASN1_INTEGER_free(ai);
        return(ret);
        }

static int certify(xret,infile,pkey,x509,dgst,policy,db,serial,startdate,days,
                   batch,ext_sect,lconf,verbose)
X509 **xret;
char *infile;
EVP_PKEY *pkey;
X509 *x509;
const EVP_MD *dgst;
STACK *policy;
TXT_DB *db;
BIGNUM *serial;
char *startdate;
int days;
int batch;
char *ext_sect;
LHASH *lconf;
int verbose;
        {
        X509_REQ *req=NULL;
        BIO *in=NULL;
        EVP_PKEY *pktmp=NULL;
        int ok= -1,i;

        in=BIO_new(BIO_s_file());

        if (BIO_read_filename(in,infile) <= 0)
                {
                perror(infile);
                goto err;
                }
        if ((req=PEM_read_bio_X509_REQ(in,NULL,NULL)) == NULL)
                {
                BIO_printf(bio_err,"Error reading certificate request in %s\n",
                        infile);
                goto err;
                }
        if (verbose)
                X509_REQ_print(bio_err,req);

        BIO_printf(bio_err,"Check that the request matches the signature\n");

        if ((pktmp=X509_REQ_get_pubkey(req)) == NULL)
                {
                BIO_printf(bio_err,"error unpacking public key\n");
                goto err;
                }
        i=X509_REQ_verify(req,pktmp);
        EVP_PKEY_free(pktmp);
        if (i < 0)
                {
                ok=0;
                BIO_printf(bio_err,"Signature verification problems....\n");
                goto err;
                }
        if (i == 0)
                {
                ok=0;
                BIO_printf(bio_err,"Signature did not match the certificate request\n");
                goto err;
                }
        else
                BIO_printf(bio_err,"Signature ok\n");

        ok=do_body(xret,pkey,x509,dgst,policy,db,serial,startdate,
                days,batch,verbose,req,ext_sect,lconf);

err:
        if (req != NULL) X509_REQ_free(req);
        if (in != NULL) BIO_free(in);
        return(ok);
        }

static int certify_cert(xret,infile,pkey,x509,dgst,policy,db,serial,startdate,
                        days,batch,ext_sect,lconf,verbose)
X509 **xret;
char *infile;
EVP_PKEY *pkey;
X509 *x509;
const EVP_MD *dgst;
STACK *policy;
TXT_DB *db;
BIGNUM *serial;
char *startdate;
int days;
int batch;
char *ext_sect;
LHASH *lconf;
int verbose;
        {
        X509 *req=NULL;
        X509_REQ *rreq=NULL;
        BIO *in=NULL;
        EVP_PKEY *pktmp=NULL;
        int ok= -1,i;

        in=BIO_new(BIO_s_file());

        if (BIO_read_filename(in,infile) <= 0)
                {
                perror(infile);
                goto err;
                }
        if ((req=PEM_read_bio_X509(in,NULL,NULL)) == NULL)
                {
                BIO_printf(bio_err,"Error reading self signed certificate in %s\n",infile);
                goto err;
                }
        if (verbose)
                X509_print(bio_err,req);

        BIO_printf(bio_err,"Check that the request matches the signature\n");

        if ((pktmp=X509_get_pubkey(req)) == NULL)
                {
                BIO_printf(bio_err,"error unpacking public key\n");
                goto err;
                }
        i=X509_verify(req,pktmp);
        EVP_PKEY_free(pktmp);
        if (i < 0)
                {
                ok=0;
                BIO_printf(bio_err,"Signature verification problems....\n");
                goto err;
                }
        if (i == 0)
                {
                ok=0;
                BIO_printf(bio_err,"Signature did not match the certificate\n");
                goto err;
                }
        else
                BIO_printf(bio_err,"Signature ok\n");

        if ((rreq=X509_to_X509_REQ(req,NULL,EVP_md5())) == NULL)
                goto err;

        ok=do_body(xret,pkey,x509,dgst,policy,db,serial,startdate,days,
                batch,verbose,rreq,ext_sect,lconf);

err:
        if (rreq != NULL) X509_REQ_free(rreq);
        if (req != NULL) X509_free(req);
        if (in != NULL) BIO_free(in);
        return(ok);
        }

static int do_body(xret,pkey,x509,dgst,policy,db,serial,startdate,days,
                   batch,verbose,req,ext_sect,lconf)
X509 **xret;
EVP_PKEY *pkey;
X509 *x509;
const EVP_MD *dgst;
STACK *policy;
TXT_DB *db;
BIGNUM *serial;
char *startdate;
int days;
int batch;
int verbose;
X509_REQ *req;
char *ext_sect;
LHASH *lconf;
        {
        X509_NAME *name=NULL,*CAname=NULL,*subject=NULL;
        ASN1_UTCTIME *tm,*tmptm;
        ASN1_STRING *str,*str2;
        ASN1_OBJECT *obj;
        X509 *ret=NULL;
        X509_CINF *ci;
        X509_NAME_ENTRY *ne;
        X509_NAME_ENTRY *tne,*push;
        EVP_PKEY *pktmp;
        int ok= -1,i,j,last,nid;
        char *p;
        CONF_VALUE *cv;
        char *row[DB_NUMBER],**rrow,**irow=NULL;
        char buf[25],*pbuf;

        tmptm=ASN1_UTCTIME_new();
        if (tmptm == NULL)
                {
                BIO_printf(bio_err,"malloc error\n");
                return(0);
                }

        for (i=0; i<DB_NUMBER; i++)
                row[i]=NULL;

        BIO_printf(bio_err,"The Subjects Distinguished Name is as follows\n");
        name=X509_REQ_get_subject_name(req);
        for (i=0; i<X509_NAME_entry_count(name); i++)
                {
                ne=(X509_NAME_ENTRY *)X509_NAME_get_entry(name,i);
                obj=X509_NAME_ENTRY_get_object(ne);
                j=i2a_ASN1_OBJECT(bio_err,obj);
                str=X509_NAME_ENTRY_get_data(ne);
                pbuf=buf;
                for (j=22-j; j>0; j--)
                        *(pbuf++)=' ';
                *(pbuf++)=':';
                *(pbuf++)='\0';
                BIO_puts(bio_err,buf);

                if (msie_hack)
                        {
                        /* assume all type should be strings */
                        nid=OBJ_obj2nid(ne->object);

                        if (str->type == V_ASN1_UNIVERSALSTRING)
                                ASN1_UNIVERSALSTRING_to_string(str);

                        if ((str->type == V_ASN1_IA5STRING) &&
                                (nid != NID_pkcs9_emailAddress))
                                str->type=V_ASN1_T61STRING;

                        if ((nid == NID_pkcs9_emailAddress) &&
                                (str->type == V_ASN1_PRINTABLESTRING))
                                str->type=V_ASN1_IA5STRING;
                        }

                if (str->type == V_ASN1_PRINTABLESTRING)
                        BIO_printf(bio_err,"PRINTABLE:'");
                else if (str->type == V_ASN1_T61STRING)
                        BIO_printf(bio_err,"T61STRING:'");
                else if (str->type == V_ASN1_IA5STRING)
                        BIO_printf(bio_err,"IA5STRING:'");
                else if (str->type == V_ASN1_UNIVERSALSTRING)
                        BIO_printf(bio_err,"UNIVERSALSTRING:'");
                else
                        BIO_printf(bio_err,"ASN.1 %2d:'",str->type);

                /* check some things */
                if ((OBJ_obj2nid(obj) == NID_pkcs9_emailAddress) &&
                        (str->type != V_ASN1_IA5STRING))
                        {
                        BIO_printf(bio_err,"\nemailAddress type needs to be of type IA5STRING\n");
                        goto err;
                        }
                j=ASN1_PRINTABLE_type(str->data,str->length);
                if (    ((j == V_ASN1_T61STRING) &&
                         (str->type != V_ASN1_T61STRING)) ||
                        ((j == V_ASN1_IA5STRING) &&
                         (str->type == V_ASN1_PRINTABLESTRING)))
                        {
                        BIO_printf(bio_err,"\nThe string contains characters that are illegal for the ASN.1 type\n");
                        goto err;
                        }
                        
                p=(char *)str->data;
                for (j=str->length; j>0; j--)
                        {
                        if ((*p >= ' ') && (*p <= '~'))
                                BIO_printf(bio_err,"%c",*p);
                        else if (*p & 0x80)
                                BIO_printf(bio_err,"\\0x%02X",*p);
                        else if ((unsigned char)*p == 0xf7)
                                BIO_printf(bio_err,"^?");
                        else    BIO_printf(bio_err,"^%c",*p+'@');
                        p++;
                        }
                BIO_printf(bio_err,"'\n");
                }

        /* Ok, now we check the 'policy' stuff. */
        if ((subject=X509_NAME_new()) == NULL)
                {
                BIO_printf(bio_err,"Malloc failure\n");
                goto err;
                }

        /* take a copy of the issuer name before we mess with it. */
        CAname=X509_NAME_dup(x509->cert_info->subject);
        if (CAname == NULL) goto err;
        str=str2=NULL;

        for (i=0; i<sk_num(policy); i++)
                {
                cv=(CONF_VALUE *)sk_value(policy,i); /* get the object id */
                if ((j=OBJ_txt2nid(cv->name)) == NID_undef)
                        {
                        BIO_printf(bio_err,"%s:unknown object type in 'policy' configuration\n",cv->name);
                        goto err;
                        }
                obj=OBJ_nid2obj(j);

                last= -1;
                for (;;)
                        {
                        /* lookup the object in the supplied name list */
                        j=X509_NAME_get_index_by_OBJ(name,obj,last);
                        if (j < 0)
                                {
                                if (last != -1) break;
                                tne=NULL;
                                }
                        else
                                {
                                tne=X509_NAME_get_entry(name,j);
                                }
                        last=j;

                        /* depending on the 'policy', decide what to do. */
                        push=NULL;
                        if (strcmp(cv->value,"optional") == 0)
                                {
                                if (tne != NULL)
                                        push=tne;
                                }
                        else if (strcmp(cv->value,"supplied") == 0)
                                {
                                if (tne == NULL)
                                        {
                                        BIO_printf(bio_err,"The %s field needed to be supplied and was missing\n",cv->name);
                                        goto err;
                                        }
                                else
                                        push=tne;
                                }
                        else if (strcmp(cv->value,"match") == 0)
                                {
                                int last2;

                                if (tne == NULL)
                                        {
                                        BIO_printf(bio_err,"The mandatory %s field was missing\n",cv->name);
                                        goto err;
                                        }

                                last2= -1;

again2:
                                j=X509_NAME_get_index_by_OBJ(CAname,obj,last2);
                                if ((j < 0) && (last2 == -1))
                                        {
                                        BIO_printf(bio_err,"The %s field does not exist in the CA certificate,\nthe 'policy' is misconfigured\n",cv->name);
                                        goto err;
                                        }
                                if (j >= 0)
                                        {
                                        push=X509_NAME_get_entry(CAname,j);
                                        str=X509_NAME_ENTRY_get_data(tne);
                                        str2=X509_NAME_ENTRY_get_data(push);
                                        last2=j;
                                        if (ASN1_STRING_cmp(str,str2) != 0)
                                                goto again2;
                                        }
                                if (j < 0)
                                        {
                                        BIO_printf(bio_err,"The %s field needed to be the same in the\nCA certificate (%s) and the request (%s)\n",cv->name,((str == NULL)?"NULL":(char *)str->data),((str2 == NULL)?"NULL":(char *)str2->data));
                                        goto err;
                                        }
                                }
                        else
                                {
                                BIO_printf(bio_err,"%s:invalid type in 'policy' configuration\n",cv->value);
                                goto err;
                                }

                        if (push != NULL)
                                {
                                if (!X509_NAME_add_entry(subject,push,
                                        X509_NAME_entry_count(subject),0))
                                        {
                                        if (push != NULL)
                                                X509_NAME_ENTRY_free(push);
                                        BIO_printf(bio_err,"Malloc failure\n");
                                        goto err;
                                        }
                                }
                        if (j < 0) break;
                        }
                }

        if (preserve)
                {
                X509_NAME_free(subject);
                subject=X509_NAME_dup(X509_REQ_get_subject_name(req));
                if (subject == NULL) goto err;
                }

        if (verbose)
                BIO_printf(bio_err,"The subject name apears to be ok, checking data base for clashes\n");

        row[DB_name]=X509_NAME_oneline(subject,NULL,0);
        row[DB_serial]=BN_bn2hex(serial);
        if ((row[DB_name] == NULL) || (row[DB_serial] == NULL))
                {
                BIO_printf(bio_err,"Malloc failure\n");
                goto err;
                }

        rrow=TXT_DB_get_by_index(db,DB_name,row);
        if (rrow != NULL)
                {
                BIO_printf(bio_err,"ERROR:There is already a certificate for %s\n",
                        row[DB_name]);
                }
        else
                {
                rrow=TXT_DB_get_by_index(db,DB_serial,row);
                if (rrow != NULL)
                        {
                        BIO_printf(bio_err,"ERROR:Serial number %s has already been issued,\n",
                                row[DB_serial]);
                        BIO_printf(bio_err,"      check the database/serial_file for corruption\n");
                        }
                }

        if (rrow != NULL)
                {
                BIO_printf(bio_err,
                        "The matching entry has the following details\n");
                if (rrow[DB_type][0] == 'E')
                        p="Expired";
                else if (rrow[DB_type][0] == 'R')
                        p="Revoked";
                else if (rrow[DB_type][0] == 'V')
                        p="Valid";
                else
                        p="\ninvalid type, Data base error\n";
                BIO_printf(bio_err,"Type          :%s\n",p);;
                if (rrow[DB_type][0] == 'R')
                        {
                        p=rrow[DB_exp_date]; if (p == NULL) p="undef";
                        BIO_printf(bio_err,"Was revoked on:%s\n",p);
                        }
                p=rrow[DB_exp_date]; if (p == NULL) p="undef";
                BIO_printf(bio_err,"Expires on    :%s\n",p);
                p=rrow[DB_serial]; if (p == NULL) p="undef";
                BIO_printf(bio_err,"Serial Number :%s\n",p);
                p=rrow[DB_file]; if (p == NULL) p="undef";
                BIO_printf(bio_err,"File name     :%s\n",p);
                p=rrow[DB_name]; if (p == NULL) p="undef";
                BIO_printf(bio_err,"Subject Name  :%s\n",p);
                ok= -1; /* This is now a 'bad' error. */
                goto err;
                }

        /* We are now totaly happy, lets make and sign the certificate */
        if (verbose)
                BIO_printf(bio_err,"Everything appears to be ok, creating and signing the certificate\n");

        if ((ret=X509_new()) == NULL) goto err;
        ci=ret->cert_info;

#ifdef X509_V3
        /* Make it an X509 v3 certificate. */
        if (!X509_set_version(x509,2)) goto err;
#endif

        if (BN_to_ASN1_INTEGER(serial,ci->serialNumber) == NULL)
                goto err;
        if (!X509_set_issuer_name(ret,X509_get_subject_name(x509)))
                goto err;

        BIO_printf(bio_err,"Certificate is to be certified until ");
        if (strcmp(startdate,"today") == 0)
                {
                X509_gmtime_adj(X509_get_notBefore(ret),0);
                X509_gmtime_adj(X509_get_notAfter(ret),(long)60*60*24*days);
                }
        else
                {
                /*XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX*/
                ASN1_UTCTIME_set_string(X509_get_notBefore(ret),startdate);
                }
        ASN1_UTCTIME_print(bio_err,X509_get_notAfter(ret));
        BIO_printf(bio_err," (%d days)\n",days);

        if (!X509_set_subject_name(ret,subject)) goto err;

        pktmp=X509_REQ_get_pubkey(req);
        i = X509_set_pubkey(ret,pktmp);
        EVP_PKEY_free(pktmp);
        if (!i) goto err;

        /* Lets add the extensions, if there are any */
        if (ext_sect)
                {
                X509V3_CTX ctx;
                if (ci->version == NULL)
                        if ((ci->version=ASN1_INTEGER_new()) == NULL)
                                goto err;
                ASN1_INTEGER_set(ci->version,2); /* version 3 certificate */

                /* Free the current entries if any, there should not
                 * be any I belive */
                if (ci->extensions != NULL)
                        sk_pop_free(ci->extensions,X509_EXTENSION_free);

                ci->extensions = NULL;

                X509V3_set_ctx(&ctx, x509, ret, req, NULL, 0);
                X509V3_set_conf_lhash(&ctx, lconf);

                if(!X509V3_EXT_add_conf(lconf, &ctx, ext_sect, ret)) goto err;

                }


        if (!batch)
                {
                BIO_printf(bio_err,"Sign the certificate? [y/n]:");
                BIO_flush(bio_err);
                buf[0]='\0';
                fgets(buf,sizeof(buf)-1,stdin);
                if (!((buf[0] == 'y') || (buf[0] == 'Y')))
                        {
                        BIO_printf(bio_err,"CERTIFICATE WILL NOT BE CERTIFIED\n");
                        ok=0;
                        goto err;
                        }
                }


#ifndef NO_DSA
        if (pkey->type == EVP_PKEY_DSA) dgst=EVP_dss1();
        pktmp=X509_get_pubkey(ret);
        if (EVP_PKEY_missing_parameters(pktmp) &&
                !EVP_PKEY_missing_parameters(pkey))
                EVP_PKEY_copy_parameters(pktmp,pkey);
        EVP_PKEY_free(pktmp);
#endif

        if (!X509_sign(ret,pkey,dgst))
                goto err;

        /* We now just add it to the database */
        row[DB_type]=(char *)Malloc(2);

        tm=X509_get_notAfter(ret);
        row[DB_exp_date]=(char *)Malloc(tm->length+1);
        memcpy(row[DB_exp_date],tm->data,tm->length);
        row[DB_exp_date][tm->length]='\0';

        row[DB_rev_date]=NULL;

        /* row[DB_serial] done already */
        row[DB_file]=(char *)Malloc(8);
        /* row[DB_name] done already */

        if ((row[DB_type] == NULL) || (row[DB_exp_date] == NULL) ||
                (row[DB_file] == NULL))
                {
                BIO_printf(bio_err,"Malloc failure\n");
                goto err;
                }
        strcpy(row[DB_file],"unknown");
        row[DB_type][0]='V';
        row[DB_type][1]='\0';

        if ((irow=(char **)Malloc(sizeof(char *)*(DB_NUMBER+1))) == NULL)
                {
                BIO_printf(bio_err,"Malloc failure\n");
                goto err;
                }

        for (i=0; i<DB_NUMBER; i++)
                {
                irow[i]=row[i];
                row[i]=NULL;
                }
        irow[DB_NUMBER]=NULL;

        if (!TXT_DB_insert(db,irow))
                {
                BIO_printf(bio_err,"failed to update database\n");
                BIO_printf(bio_err,"TXT_DB error number %ld\n",db->error);
                goto err;
                }
        ok=1;
err:
        for (i=0; i<DB_NUMBER; i++)
                if (row[i] != NULL) Free(row[i]);

        if (CAname != NULL)
                X509_NAME_free(CAname);
        if (subject != NULL)
                X509_NAME_free(subject);
        if (ok <= 0)
                {
                if (ret != NULL) X509_free(ret);
                ret=NULL;
                }
        else
                *xret=ret;
        return(ok);
        }

static void write_new_certificate(bp,x, output_der)
BIO *bp;
X509 *x;
int output_der;
        {
        char *f;
        char buf[256];

        if (output_der)
                {
                (void)i2d_X509_bio(bp,x);
                return;
                }

        f=X509_NAME_oneline(X509_get_issuer_name(x),buf,256);
        BIO_printf(bp,"issuer :%s\n",f);

        f=X509_NAME_oneline(X509_get_subject_name(x),buf,256);
        BIO_printf(bp,"subject:%s\n",f);

        BIO_puts(bp,"serial :");
        i2a_ASN1_INTEGER(bp,x->cert_info->serialNumber);
        BIO_puts(bp,"\n\n");
        X509_print(bp,x);
        BIO_puts(bp,"\n");
        PEM_write_bio_X509(bp,x);
        BIO_puts(bp,"\n");
        }

static int certify_spkac(xret,infile,pkey,x509,dgst,policy,db,serial,
                         startdate,days,ext_sect,lconf,verbose)
X509 **xret;
char *infile;
EVP_PKEY *pkey;
X509 *x509;
const EVP_MD *dgst;
STACK *policy;
TXT_DB *db;
BIGNUM *serial;
char *startdate;
int days;
char *ext_sect;
LHASH *lconf;
int verbose;
        {
        STACK *sk=NULL;
        LHASH *parms=NULL;
        X509_REQ *req=NULL;
        CONF_VALUE *cv=NULL;
        NETSCAPE_SPKI *spki = NULL;
        unsigned char *spki_der = NULL,*p;
        X509_REQ_INFO *ri;
        char *type,*buf;
        EVP_PKEY *pktmp=NULL;
        X509_NAME *n=NULL;
        X509_NAME_ENTRY *ne=NULL;
        int ok= -1,i,j;
        long errline;
        int nid;

        /*
         * Load input file into a hash table.  (This is just an easy
         * way to read and parse the file, then put it into a convenient
         * STACK format).
         */
        parms=CONF_load(NULL,infile,&errline);
        if (parms == NULL)
                {
                BIO_printf(bio_err,"error on line %ld of %s\n",errline,infile);
                ERR_print_errors(bio_err);
                goto err;
                }

        sk=CONF_get_section(parms, "default");
        if (sk_num(sk) == 0)
                {
                BIO_printf(bio_err, "no name/value pairs found in %s\n", infile);
                CONF_free(parms);
                goto err;
                }

        /*
         * Now create a dummy X509 request structure.  We don't actually
         * have an X509 request, but we have many of the components
         * (a public key, various DN components).  The idea is that we
         * put these components into the right X509 request structure
         * and we can use the same code as if you had a real X509 request.
         */
        req=X509_REQ_new();
        if (req == NULL)
                {
                ERR_print_errors(bio_err);
                goto err;
                }

        /*
         * Build up the subject name set.
         */
        ri=req->req_info;
        n = ri->subject;

        for (i = 0; ; i++)
                {
                if ((int)sk_num(sk) <= i) break;

                cv=(CONF_VALUE *)sk_value(sk,i);
                type=cv->name;
                buf=cv->value;

                if ((nid=OBJ_txt2nid(type)) == NID_undef)
                        {
                        if (strcmp(type, "SPKAC") == 0)
                                {
                                spki_der=(unsigned char *)Malloc(
                                        strlen(cv->value)+1);
                                if (spki_der == NULL)
                                        {
                                        BIO_printf(bio_err,"Malloc failure\n");
                                        goto err;
                                        }
                                j = EVP_DecodeBlock(spki_der, (unsigned char *)cv->value,
                                        strlen(cv->value));
                                if (j <= 0)
                                        {
                                        BIO_printf(bio_err, "Can't b64 decode SPKAC structure\n");
                                        goto err;
                                        }

                                p=spki_der;
                                spki = d2i_NETSCAPE_SPKI(&spki, &p, j);
                                Free(spki_der);
                                spki_der = NULL;
                                if (spki == NULL)
                                        {
                                        BIO_printf(bio_err,"unable to load Netscape SPKAC structure\n");
                                        ERR_print_errors(bio_err);
                                        goto err;
                                        }
                                }
                        continue;
                        }

                j=ASN1_PRINTABLE_type((unsigned char *)buf,-1);
                if (fix_data(nid, &j) == 0)
                        {
                        BIO_printf(bio_err,
                                "invalid characters in string %s\n",buf);
                        goto err;
                        }

                if ((ne=X509_NAME_ENTRY_create_by_NID(&ne,nid,j,
                        (unsigned char *)buf,
                        strlen(buf))) == NULL)
                        goto err;

                if (!X509_NAME_add_entry(n,ne,X509_NAME_entry_count(n),0))
                        goto err;
                }
        if (spki == NULL)
                {
                BIO_printf(bio_err,"Netscape SPKAC structure not found in %s\n",
                        infile);
                goto err;
                }

        /*
         * Now extract the key from the SPKI structure.
         */

        BIO_printf(bio_err,"Check that the SPKAC request matches the signature\n");

        if ((pktmp=X509_PUBKEY_get(spki->spkac->pubkey)) == NULL)
                {
                BIO_printf(bio_err,"error unpacking SPKAC public key\n");
                goto err;
                }

        j = NETSCAPE_SPKI_verify(spki, pktmp);
        if (j <= 0)
                {
                BIO_printf(bio_err,"signature verification failed on SPKAC public key\n");
                goto err;
                }
        BIO_printf(bio_err,"Signature ok\n");

        X509_REQ_set_pubkey(req,pktmp);
        EVP_PKEY_free(pktmp);
        ok=do_body(xret,pkey,x509,dgst,policy,db,serial,startdate,
                   days,1,verbose,req,ext_sect,lconf);
err:
        if (req != NULL) X509_REQ_free(req);
        if (parms != NULL) CONF_free(parms);
        if (spki_der != NULL) Free(spki_der);
        if (spki != NULL) NETSCAPE_SPKI_free(spki);
        if (ne != NULL) X509_NAME_ENTRY_free(ne);

        return(ok);
        }

static int fix_data(nid,type)
int nid;
int *type;
        {
        if (nid == NID_pkcs9_emailAddress)
                *type=V_ASN1_IA5STRING;
        if ((nid == NID_commonName) && (*type == V_ASN1_IA5STRING))
                *type=V_ASN1_T61STRING;
        if ((nid == NID_pkcs9_challengePassword) && (*type == V_ASN1_IA5STRING))
                *type=V_ASN1_T61STRING;
        if ((nid == NID_pkcs9_unstructuredName) && (*type == V_ASN1_T61STRING))
                return(0);
        if (nid == NID_pkcs9_unstructuredName)
                *type=V_ASN1_IA5STRING;
        return(1);
        }

static int check_time_format(str)
char *str;
        {
        ASN1_UTCTIME tm;

        tm.data=(unsigned char *)str;
        tm.length=strlen(str);
        tm.type=V_ASN1_UTCTIME;
        return(ASN1_UTCTIME_check(&tm));
        }

static int add_oid_section(hconf)
LHASH *hconf;
{       
        char *p;
        STACK *sktmp;
        CONF_VALUE *cnf;
        int i;
        if(!(p=CONF_get_string(hconf,NULL,"oid_section"))) return 1;
        if(!(sktmp = CONF_get_section(hconf, p))) {
                BIO_printf(bio_err, "problem loading oid section %s\n", p);
                return 0;
        }
        for(i = 0; i < sk_num(sktmp); i++) {
                cnf = (CONF_VALUE *)sk_value(sktmp, i);
                if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
                        BIO_printf(bio_err, "problem creating object %s=%s\n",
                                                         cnf->name, cnf->value);
                        return 0;
                }
        }
        return 1;
}

static int do_revoke(x509,db)
X509 *x509;
TXT_DB *db;
{
        ASN1_UTCTIME *tm=NULL;
        char *row[DB_NUMBER],**rrow,**irow;
        int ok=-1,i;

        for (i=0; i<DB_NUMBER; i++)
                row[i]=NULL;
        row[DB_name]=X509_NAME_oneline(x509->cert_info->subject,NULL,0);
        row[DB_serial]=BN_bn2hex(ASN1_INTEGER_to_BN(x509->cert_info->serialNumber,NULL));
        if ((row[DB_name] == NULL) || (row[DB_serial] == NULL))
                {
                BIO_printf(bio_err,"Malloc failure\n");
                goto err;
                }
        rrow=TXT_DB_get_by_index(db,DB_name,row);
        if (rrow == NULL)
                {
                BIO_printf(bio_err,"Adding Entry to DB for %s\n", row[DB_name]);

                /* We now just add it to the database */
                row[DB_type]=(char *)Malloc(2);

                tm=X509_get_notAfter(x509);
                row[DB_exp_date]=(char *)Malloc(tm->length+1);
                memcpy(row[DB_exp_date],tm->data,tm->length);
                row[DB_exp_date][tm->length]='\0';

                row[DB_rev_date]=NULL;

                /* row[DB_serial] done already */
                row[DB_file]=(char *)Malloc(8);

                /* row[DB_name] done already */

                if ((row[DB_type] == NULL) || (row[DB_exp_date] == NULL) ||
                        (row[DB_file] == NULL))
                        {
                        BIO_printf(bio_err,"Malloc failure\n");
                        goto err;
                        }
                strcpy(row[DB_file],"unknown");
                row[DB_type][0]='V';
                row[DB_type][1]='\0';

                if ((irow=(char **)Malloc(sizeof(char *)*(DB_NUMBER+1))) == NULL)
                        {
                        BIO_printf(bio_err,"Malloc failure\n");
                        goto err;
                        }

                for (i=0; i<DB_NUMBER; i++)
                        {
                        irow[i]=row[i];
                        row[i]=NULL;
                        }
                irow[DB_NUMBER]=NULL;

                if (!TXT_DB_insert(db,irow))
                        {
                        BIO_printf(bio_err,"failed to update database\n");
                        BIO_printf(bio_err,"TXT_DB error number %ld\n",db->error);
                        goto err;
                        }

                /* Revoke Certificate */
                do_revoke(x509,db);

                ok=1;
                goto err;

                }
        else if (index_serial_cmp(row,rrow))
                {
                BIO_printf(bio_err,"ERROR:no same serial number %s\n",
                           row[DB_serial]);
                goto err;
                }
        else if (rrow[DB_type][0]=='R')
                {
                BIO_printf(bio_err,"ERROR:Already revoked, serial number %s\n",
                           row[DB_serial]);
                goto err;
                }
        else
                {
                BIO_printf(bio_err,"Revoking Certificate %s.\n", rrow[DB_serial]);
                tm=X509_gmtime_adj(tm,0);
                rrow[DB_type][0]='R';
                rrow[DB_type][1]='\0';
                rrow[DB_rev_date]=(char *)Malloc(tm->length+1);
                memcpy(rrow[DB_rev_date],tm->data,tm->length);
                rrow[DB_rev_date][tm->length]='\0';
                }
        ok=1;
err:
        for (i=0; i<DB_NUMBER; i++)
                {
                if (row[i] != NULL) 
                        Free(row[i]);
                }
        ASN1_UTCTIME_free(tm);
        return(ok);
}