pkcs12.c

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/* pkcs12.c */
/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
 * project.
 */
/* ====================================================================
 * Copyright (c) 1999-2002 The OpenSSL Project.  All rights reserved.
 *
 * 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 above 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 acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    licensing@OpenSSL.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED 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 OpenSSL PROJECT OR
 * ITS 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.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */

#include <openssl/opensslconf.h>
#if !defined(OPENSSL_NO_DES) && !defined(OPENSSL_NO_SHA1)

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "apps.h"
#include <openssl/crypto.h>
#include <openssl/err.h>
#include <openssl/pem.h>
#include <openssl/pkcs12.h>

#define PROG pkcs12_main

const EVP_CIPHER *enc;


#define NOKEYS          0x1
#define NOCERTS         0x2
#define INFO            0x4
#define CLCERTS         0x8
#define CACERTS         0x10

int get_cert_chain (X509 *cert, X509_STORE *store, STACK_OF(X509) **chain);
int dump_certs_keys_p12(BIO *out, PKCS12 *p12, char *pass, int passlen, int options, char *pempass);
int dump_certs_pkeys_bags(BIO *out, STACK_OF(PKCS12_SAFEBAG) *bags, char *pass,
                          int passlen, int options, char *pempass);
int dump_certs_pkeys_bag(BIO *out, PKCS12_SAFEBAG *bags, char *pass, int passlen, int options, char *pempass);
int print_attribs(BIO *out, STACK_OF(X509_ATTRIBUTE) *attrlst,const char *name);
void hex_prin(BIO *out, unsigned char *buf, int len);
int alg_print(BIO *x, X509_ALGOR *alg);
int cert_load(BIO *in, STACK_OF(X509) *sk);

int MAIN(int, char **);

int MAIN(int argc, char **argv)
{
    ENGINE *e = NULL;
    char *infile=NULL, *outfile=NULL, *keyname = NULL;  
    char *certfile=NULL;
    BIO *in=NULL, *out = NULL;
    char **args;
    char *name = NULL;
    char *csp_name = NULL;
    PKCS12 *p12 = NULL;
    char pass[50], macpass[50];
    int export_cert = 0;
    int options = 0;
    int chain = 0;
    int badarg = 0;
    int iter = PKCS12_DEFAULT_ITER;
    int maciter = PKCS12_DEFAULT_ITER;
    int twopass = 0;
    int keytype = 0;
    int cert_pbe = NID_pbe_WithSHA1And40BitRC2_CBC;
    int key_pbe = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
    int ret = 1;
    int macver = 1;
    int noprompt = 0;
    STACK *canames = NULL;
    char *cpass = NULL, *mpass = NULL;
    char *passargin = NULL, *passargout = NULL, *passarg = NULL;
    char *passin = NULL, *passout = NULL;
    char *inrand = NULL;
    char *CApath = NULL, *CAfile = NULL;
#ifndef OPENSSL_NO_ENGINE
    char *engine=NULL;
#endif

    apps_startup();

    enc = EVP_des_ede3_cbc();
    if (bio_err == NULL ) bio_err = BIO_new_fp (stderr, BIO_NOCLOSE);

        if (!load_config(bio_err, NULL))
                goto end;

    args = argv + 1;


    while (*args) {
        if (*args[0] == '-') {
                if (!strcmp (*args, "-nokeys")) options |= NOKEYS;
                else if (!strcmp (*args, "-keyex")) keytype = KEY_EX;
                else if (!strcmp (*args, "-keysig")) keytype = KEY_SIG;
                else if (!strcmp (*args, "-nocerts")) options |= NOCERTS;
                else if (!strcmp (*args, "-clcerts")) options |= CLCERTS;
                else if (!strcmp (*args, "-cacerts")) options |= CACERTS;
                else if (!strcmp (*args, "-noout")) options |= (NOKEYS|NOCERTS);
                else if (!strcmp (*args, "-info")) options |= INFO;
                else if (!strcmp (*args, "-chain")) chain = 1;
                else if (!strcmp (*args, "-twopass")) twopass = 1;
                else if (!strcmp (*args, "-nomacver")) macver = 0;
                else if (!strcmp (*args, "-descert"))
                        cert_pbe = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
                else if (!strcmp (*args, "-export")) export_cert = 1;
                else if (!strcmp (*args, "-des")) enc=EVP_des_cbc();
#ifndef OPENSSL_NO_IDEA
                else if (!strcmp (*args, "-idea")) enc=EVP_idea_cbc();
#endif
                else if (!strcmp (*args, "-des3")) enc = EVP_des_ede3_cbc();
#ifndef OPENSSL_NO_AES
                else if (!strcmp(*args,"-aes128")) enc=EVP_aes_128_cbc();
                else if (!strcmp(*args,"-aes192")) enc=EVP_aes_192_cbc();
                else if (!strcmp(*args,"-aes256")) enc=EVP_aes_256_cbc();
#endif
                else if (!strcmp (*args, "-noiter")) iter = 1;
                else if (!strcmp (*args, "-maciter"))
                                         maciter = PKCS12_DEFAULT_ITER;
                else if (!strcmp (*args, "-nomaciter"))
                                         maciter = 1;
                else if (!strcmp (*args, "-nomac"))
                                         maciter = -1;
                else if (!strcmp (*args, "-nodes")) enc=NULL;
                else if (!strcmp (*args, "-certpbe")) {
                        if (args[1]) {
                                args++;
                                if (!strcmp(*args, "NONE"))
                                        cert_pbe = -1;
                                cert_pbe=OBJ_txt2nid(*args);
                                if(cert_pbe == NID_undef) {
                                        BIO_printf(bio_err,
                                                 "Unknown PBE algorithm %s\n", *args);
                                        badarg = 1;
                                }
                        } else badarg = 1;
                } else if (!strcmp (*args, "-keypbe")) {
                        if (args[1]) {
                                args++;
                                if (!strcmp(*args, "NONE"))
                                        key_pbe = -1;
                                else
                                        key_pbe=OBJ_txt2nid(*args);
                                if(key_pbe == NID_undef) {
                                        BIO_printf(bio_err,
                                                 "Unknown PBE algorithm %s\n", *args);
                                        badarg = 1;
                                }
                        } else badarg = 1;
                } else if (!strcmp (*args, "-rand")) {
                    if (args[1]) {
                        args++; 
                        inrand = *args;
                    } else badarg = 1;
                } else if (!strcmp (*args, "-inkey")) {
                    if (args[1]) {
                        args++; 
                        keyname = *args;
                    } else badarg = 1;
                } else if (!strcmp (*args, "-certfile")) {
                    if (args[1]) {
                        args++; 
                        certfile = *args;
                    } else badarg = 1;
                } else if (!strcmp (*args, "-name")) {
                    if (args[1]) {
                        args++; 
                        name = *args;
                    } else badarg = 1;
                } else if (!strcmp (*args, "-CSP")) {
                    if (args[1]) {
                        args++; 
                        csp_name = *args;
                    } else badarg = 1;
                } else if (!strcmp (*args, "-caname")) {
                    if (args[1]) {
                        args++; 
                        if (!canames) canames = sk_new_null();
                        sk_push(canames, *args);
                    } else badarg = 1;
                } else if (!strcmp (*args, "-in")) {
                    if (args[1]) {
                        args++; 
                        infile = *args;
                    } else badarg = 1;
                } else if (!strcmp (*args, "-out")) {
                    if (args[1]) {
                        args++; 
                        outfile = *args;
                    } else badarg = 1;
                } else if (!strcmp(*args,"-passin")) {
                    if (args[1]) {
                        args++; 
                        passargin = *args;
                    } else badarg = 1;
                } else if (!strcmp(*args,"-passout")) {
                    if (args[1]) {
                        args++; 
                        passargout = *args;
                    } else badarg = 1;
                } else if (!strcmp (*args, "-password")) {
                    if (args[1]) {
                        args++; 
                        passarg = *args;
                        noprompt = 1;
                    } else badarg = 1;
                } else if (!strcmp(*args,"-CApath")) {
                    if (args[1]) {
                        args++; 
                        CApath = *args;
                    } else badarg = 1;
                } else if (!strcmp(*args,"-CAfile")) {
                    if (args[1]) {
                        args++; 
                        CAfile = *args;
                    } else badarg = 1;
#ifndef OPENSSL_NO_ENGINE
                } else if (!strcmp(*args,"-engine")) {
                    if (args[1]) {
                        args++; 
                        engine = *args;
                    } else badarg = 1;
#endif
                } else badarg = 1;

        } else badarg = 1;
        args++;
    }

    if (badarg) {
        BIO_printf (bio_err, "Usage: pkcs12 [options]\n");
        BIO_printf (bio_err, "where options are\n");
        BIO_printf (bio_err, "-export       output PKCS12 file\n");
        BIO_printf (bio_err, "-chain        add certificate chain\n");
        BIO_printf (bio_err, "-inkey file   private key if not infile\n");
        BIO_printf (bio_err, "-certfile f   add all certs in f\n");
        BIO_printf (bio_err, "-CApath arg   - PEM format directory of CA's\n");
        BIO_printf (bio_err, "-CAfile arg   - PEM format file of CA's\n");
        BIO_printf (bio_err, "-name \"name\"  use name as friendly name\n");
        BIO_printf (bio_err, "-caname \"nm\"  use nm as CA friendly name (can be used more than once).\n");
        BIO_printf (bio_err, "-in  infile   input filename\n");
        BIO_printf (bio_err, "-out outfile  output filename\n");
        BIO_printf (bio_err, "-noout        don't output anything, just verify.\n");
        BIO_printf (bio_err, "-nomacver     don't verify MAC.\n");
        BIO_printf (bio_err, "-nocerts      don't output certificates.\n");
        BIO_printf (bio_err, "-clcerts      only output client certificates.\n");
        BIO_printf (bio_err, "-cacerts      only output CA certificates.\n");
        BIO_printf (bio_err, "-nokeys       don't output private keys.\n");
        BIO_printf (bio_err, "-info         give info about PKCS#12 structure.\n");
        BIO_printf (bio_err, "-des          encrypt private keys with DES\n");
        BIO_printf (bio_err, "-des3         encrypt private keys with triple DES (default)\n");
#ifndef OPENSSL_NO_IDEA
        BIO_printf (bio_err, "-idea         encrypt private keys with idea\n");
#endif
#ifndef OPENSSL_NO_AES
        BIO_printf (bio_err, "-aes128, -aes192, -aes256\n");
        BIO_printf (bio_err, "              encrypt PEM output with cbc aes\n");
#endif
        BIO_printf (bio_err, "-nodes        don't encrypt private keys\n");
        BIO_printf (bio_err, "-noiter       don't use encryption iteration\n");
        BIO_printf (bio_err, "-maciter      use MAC iteration\n");
        BIO_printf (bio_err, "-twopass      separate MAC, encryption passwords\n");
        BIO_printf (bio_err, "-descert      encrypt PKCS#12 certificates with triple DES (default RC2-40)\n");
        BIO_printf (bio_err, "-certpbe alg  specify certificate PBE algorithm (default RC2-40)\n");
        BIO_printf (bio_err, "-keypbe alg   specify private key PBE algorithm (default 3DES)\n");
        BIO_printf (bio_err, "-keyex        set MS key exchange type\n");
        BIO_printf (bio_err, "-keysig       set MS key signature type\n");
        BIO_printf (bio_err, "-password p   set import/export password source\n");
        BIO_printf (bio_err, "-passin p     input file pass phrase source\n");
        BIO_printf (bio_err, "-passout p    output file pass phrase source\n");
#ifndef OPENSSL_NO_ENGINE
        BIO_printf (bio_err, "-engine e     use engine e, possibly a hardware device.\n");
#endif
        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");
        goto end;
    }

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

    if(passarg) {
        if(export_cert) passargout = passarg;
        else passargin = passarg;
    }

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

    if(!cpass) {
        if(export_cert) cpass = passout;
        else cpass = passin;
    }

    if(cpass) {
        mpass = cpass;
        noprompt = 1;
    } else {
        cpass = pass;
        mpass = macpass;
    }

    if(export_cert || inrand) {
        app_RAND_load_file(NULL, bio_err, (inrand != NULL));
        if (inrand != NULL)
                BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
                        app_RAND_load_files(inrand));
    }
    ERR_load_crypto_strings();

#ifdef CRYPTO_MDEBUG
    CRYPTO_push_info("read files");
#endif

    if (!infile) in = BIO_new_fp(stdin, BIO_NOCLOSE);
    else in = BIO_new_file(infile, "rb");
    if (!in) {
            BIO_printf(bio_err, "Error opening input file %s\n",
                                                infile ? infile : "<stdin>");
            perror (infile);
            goto end;
   }

#ifdef CRYPTO_MDEBUG
    CRYPTO_pop_info();
    CRYPTO_push_info("write files");
#endif

    if (!outfile) {
        out = BIO_new_fp(stdout, BIO_NOCLOSE);
#ifdef OPENSSL_SYS_VMS
        {
            BIO *tmpbio = BIO_new(BIO_f_linebuffer());
            out = BIO_push(tmpbio, out);
        }
#endif
    } else out = BIO_new_file(outfile, "wb");
    if (!out) {
        BIO_printf(bio_err, "Error opening output file %s\n",
                                                outfile ? outfile : "<stdout>");
        perror (outfile);
        goto end;
    }
    if (twopass) {
#ifdef CRYPTO_MDEBUG
    CRYPTO_push_info("read MAC password");
#endif
        if(EVP_read_pw_string (macpass, sizeof macpass, "Enter MAC Password:", export_cert))
        {
            BIO_printf (bio_err, "Can't read Password\n");
            goto end;
        }
#ifdef CRYPTO_MDEBUG
    CRYPTO_pop_info();
#endif
    }

    if (export_cert) {
        EVP_PKEY *key = NULL;
        X509 *ucert = NULL, *x = NULL;
        STACK_OF(X509) *certs=NULL;
        unsigned char *catmp = NULL;
        int i;

        if ((options & (NOCERTS|NOKEYS)) == (NOCERTS|NOKEYS))
                {       
                BIO_printf(bio_err, "Nothing to do!\n");
                goto export_end;
                }

        if (options & NOCERTS)
                chain = 0;

#ifdef CRYPTO_MDEBUG
        CRYPTO_push_info("process -export_cert");
        CRYPTO_push_info("reading private key");
#endif
        if (!(options & NOKEYS))
                {
                key = load_key(bio_err, keyname ? keyname : infile,
                                FORMAT_PEM, 1, passin, e, "private key");
                if (!key)
                        goto export_end;
                }

#ifdef CRYPTO_MDEBUG
        CRYPTO_pop_info();
        CRYPTO_push_info("reading certs from input");
#endif

        /* Load in all certs in input file */
        if(!(options & NOCERTS))
                {
                certs = load_certs(bio_err, infile, FORMAT_PEM, NULL, e,
                                                        "certificates");
                if (!certs)
                        goto export_end;

                if (key)
                        {
                        /* Look for matching private key */
                        for(i = 0; i < sk_X509_num(certs); i++)
                                {
                                x = sk_X509_value(certs, i);
                                if(X509_check_private_key(x, key))
                                        {
                                        ucert = x;
                                        /* Zero keyid and alias */
                                        X509_keyid_set1(ucert, NULL, 0);
                                        X509_alias_set1(ucert, NULL, 0);
                                        /* Remove from list */
                                        sk_X509_delete(certs, i);
                                        break;
                                        }
                                }
                        if (!ucert)
                                {
                                BIO_printf(bio_err, "No certificate matches private key\n");
                                goto export_end;
                                }
                        }

                }

#ifdef CRYPTO_MDEBUG
        CRYPTO_pop_info();
        CRYPTO_push_info("reading certs from input 2");
#endif

        /* Add any more certificates asked for */
        if(certfile)
                {
                STACK_OF(X509) *morecerts=NULL;
                if(!(morecerts = load_certs(bio_err, certfile, FORMAT_PEM,
                                            NULL, e,
                                            "certificates from certfile")))
                        goto export_end;
                while(sk_X509_num(morecerts) > 0)
                        sk_X509_push(certs, sk_X509_shift(morecerts));
                sk_X509_free(morecerts);
                }

#ifdef CRYPTO_MDEBUG
        CRYPTO_pop_info();
        CRYPTO_push_info("reading certs from certfile");
#endif

#ifdef CRYPTO_MDEBUG
        CRYPTO_pop_info();
        CRYPTO_push_info("building chain");
#endif

        /* If chaining get chain from user cert */
        if (chain) {
                int vret;
                STACK_OF(X509) *chain2;
                X509_STORE *store = X509_STORE_new();
                if (!store)
                        {
                        BIO_printf (bio_err, "Memory allocation error\n");
                        goto export_end;
                        }
                if (!X509_STORE_load_locations(store, CAfile, CApath))
                        X509_STORE_set_default_paths (store);

                vret = get_cert_chain (ucert, store, &chain2);
                X509_STORE_free(store);

                if (!vret) {
                    /* Exclude verified certificate */
                    for (i = 1; i < sk_X509_num (chain2) ; i++) 
                        sk_X509_push(certs, sk_X509_value (chain2, i));
                    /* Free first certificate */
                    X509_free(sk_X509_value(chain2, 0));
                    sk_X509_free(chain2);
                } else {
                        BIO_printf (bio_err, "Error %s getting chain.\n",
                                        X509_verify_cert_error_string(vret));
                        goto export_end;
                }                       
        }

        /* Add any CA names */

        for (i = 0; i < sk_num(canames); i++)
                {
                catmp = (unsigned char *)sk_value(canames, i);
                X509_alias_set1(sk_X509_value(certs, i), catmp, -1);
                }

        if (csp_name && key)
                EVP_PKEY_add1_attr_by_NID(key, NID_ms_csp_name,
                                MBSTRING_ASC, (unsigned char *)csp_name, -1);
                

#ifdef CRYPTO_MDEBUG
        CRYPTO_pop_info();
        CRYPTO_push_info("reading password");
#endif

        if(!noprompt &&
                EVP_read_pw_string(pass, sizeof pass, "Enter Export Password:", 1))
                {
                BIO_printf (bio_err, "Can't read Password\n");
                goto export_end;
                }
        if (!twopass) BUF_strlcpy(macpass, pass, sizeof macpass);

#ifdef CRYPTO_MDEBUG
        CRYPTO_pop_info();
        CRYPTO_push_info("creating PKCS#12 structure");
#endif

        p12 = PKCS12_create(cpass, name, key, ucert, certs,
                                key_pbe, cert_pbe, iter, -1, keytype);

        if (!p12)
                {
                ERR_print_errors (bio_err);
                goto export_end;
                }

        if (maciter != -1)
                PKCS12_set_mac(p12, mpass, -1, NULL, 0, maciter, NULL);

#ifdef CRYPTO_MDEBUG
        CRYPTO_pop_info();
        CRYPTO_push_info("writing pkcs12");
#endif

        i2d_PKCS12_bio(out, p12);

        ret = 0;

    export_end:
#ifdef CRYPTO_MDEBUG
        CRYPTO_pop_info();
        CRYPTO_pop_info();
        CRYPTO_push_info("process -export_cert: freeing");
#endif

        if (key) EVP_PKEY_free(key);
        if (certs) sk_X509_pop_free(certs, X509_free);
        if (ucert) X509_free(ucert);

#ifdef CRYPTO_MDEBUG
        CRYPTO_pop_info();
#endif
        goto end;
        
    }

    if (!(p12 = d2i_PKCS12_bio (in, NULL))) {
        ERR_print_errors(bio_err);
        goto end;
    }

#ifdef CRYPTO_MDEBUG
    CRYPTO_push_info("read import password");
#endif
    if(!noprompt && EVP_read_pw_string(pass, sizeof pass, "Enter Import Password:", 0)) {
        BIO_printf (bio_err, "Can't read Password\n");
        goto end;
    }
#ifdef CRYPTO_MDEBUG
    CRYPTO_pop_info();
#endif

    if (!twopass) BUF_strlcpy(macpass, pass, sizeof macpass);

    if (options & INFO) BIO_printf (bio_err, "MAC Iteration %ld\n", p12->mac->iter ? ASN1_INTEGER_get (p12->mac->iter) : 1);
    if(macver) {
#ifdef CRYPTO_MDEBUG
    CRYPTO_push_info("verify MAC");
#endif
        /* If we enter empty password try no password first */
        if(!mpass[0] && PKCS12_verify_mac(p12, NULL, 0)) {
                /* If mac and crypto pass the same set it to NULL too */
                if(!twopass) cpass = NULL;
        } else if (!PKCS12_verify_mac(p12, mpass, -1)) {
            BIO_printf (bio_err, "Mac verify error: invalid password?\n");
            ERR_print_errors (bio_err);
            goto end;
        }
        BIO_printf (bio_err, "MAC verified OK\n");
#ifdef CRYPTO_MDEBUG
    CRYPTO_pop_info();
#endif
    }

#ifdef CRYPTO_MDEBUG
    CRYPTO_push_info("output keys and certificates");
#endif
    if (!dump_certs_keys_p12 (out, p12, cpass, -1, options, passout)) {
        BIO_printf(bio_err, "Error outputting keys and certificates\n");
        ERR_print_errors (bio_err);
        goto end;
    }
#ifdef CRYPTO_MDEBUG
    CRYPTO_pop_info();
#endif
    ret = 0;
 end:
    if (p12) PKCS12_free(p12);
    if(export_cert || inrand) app_RAND_write_file(NULL, bio_err);
#ifdef CRYPTO_MDEBUG
    CRYPTO_remove_all_info();
#endif
    BIO_free(in);
    BIO_free_all(out);
    if (canames) sk_free(canames);
    if(passin) OPENSSL_free(passin);
    if(passout) OPENSSL_free(passout);
    apps_shutdown();
    OPENSSL_EXIT(ret);
}

int dump_certs_keys_p12 (BIO *out, PKCS12 *p12, char *pass,
             int passlen, int options, char *pempass)
{
        STACK_OF(PKCS7) *asafes = NULL;
        STACK_OF(PKCS12_SAFEBAG) *bags;
        int i, bagnid;
        int ret = 0;
        PKCS7 *p7;

        if (!( asafes = PKCS12_unpack_authsafes(p12))) return 0;
        for (i = 0; i < sk_PKCS7_num (asafes); i++) {
                p7 = sk_PKCS7_value (asafes, i);
                bagnid = OBJ_obj2nid (p7->type);
                if (bagnid == NID_pkcs7_data) {
                        bags = PKCS12_unpack_p7data(p7);
                        if (options & INFO) BIO_printf (bio_err, "PKCS7 Data\n");
                } else if (bagnid == NID_pkcs7_encrypted) {
                        if (options & INFO) {
                                BIO_printf(bio_err, "PKCS7 Encrypted data: ");
                                alg_print(bio_err, 
                                        p7->d.encrypted->enc_data->algorithm);
                        }
                        bags = PKCS12_unpack_p7encdata(p7, pass, passlen);
                } else continue;
                if (!bags) goto err;
                if (!dump_certs_pkeys_bags (out, bags, pass, passlen, 
                                                 options, pempass)) {
                        sk_PKCS12_SAFEBAG_pop_free (bags, PKCS12_SAFEBAG_free);
                        goto err;
                }
                sk_PKCS12_SAFEBAG_pop_free (bags, PKCS12_SAFEBAG_free);
                bags = NULL;
        }
        ret = 1;

        err:

        if (asafes)
                sk_PKCS7_pop_free (asafes, PKCS7_free);
        return ret;
}

int dump_certs_pkeys_bags (BIO *out, STACK_OF(PKCS12_SAFEBAG) *bags,
                           char *pass, int passlen, int options, char *pempass)
{
        int i;
        for (i = 0; i < sk_PKCS12_SAFEBAG_num (bags); i++) {
                if (!dump_certs_pkeys_bag (out,
                                           sk_PKCS12_SAFEBAG_value (bags, i),
                                           pass, passlen,
                                           options, pempass))
                    return 0;
        }
        return 1;
}

int dump_certs_pkeys_bag (BIO *out, PKCS12_SAFEBAG *bag, char *pass,
             int passlen, int options, char *pempass)
{
        EVP_PKEY *pkey;
        PKCS8_PRIV_KEY_INFO *p8;
        X509 *x509;
        
        switch (M_PKCS12_bag_type(bag))
        {
        case NID_keyBag:
                if (options & INFO) BIO_printf (bio_err, "Key bag\n");
                if (options & NOKEYS) return 1;
                print_attribs (out, bag->attrib, "Bag Attributes");
                p8 = bag->value.keybag;
                if (!(pkey = EVP_PKCS82PKEY (p8))) return 0;
                print_attribs (out, p8->attributes, "Key Attributes");
                PEM_write_bio_PrivateKey (out, pkey, enc, NULL, 0, NULL, pempass);
                EVP_PKEY_free(pkey);
        break;

        case NID_pkcs8ShroudedKeyBag:
                if (options & INFO) {
                        BIO_printf (bio_err, "Shrouded Keybag: ");
                        alg_print (bio_err, bag->value.shkeybag->algor);
                }
                if (options & NOKEYS) return 1;
                print_attribs (out, bag->attrib, "Bag Attributes");
                if (!(p8 = PKCS12_decrypt_skey(bag, pass, passlen)))
                                return 0;
                if (!(pkey = EVP_PKCS82PKEY (p8))) {
                        PKCS8_PRIV_KEY_INFO_free(p8);
                        return 0;
                }
                print_attribs (out, p8->attributes, "Key Attributes");
                PKCS8_PRIV_KEY_INFO_free(p8);
                PEM_write_bio_PrivateKey (out, pkey, enc, NULL, 0, NULL, pempass);
                EVP_PKEY_free(pkey);
        break;

        case NID_certBag:
                if (options & INFO) BIO_printf (bio_err, "Certificate bag\n");
                if (options & NOCERTS) return 1;
                if (PKCS12_get_attr(bag, NID_localKeyID)) {
                        if (options & CACERTS) return 1;
                } else if (options & CLCERTS) return 1;
                print_attribs (out, bag->attrib, "Bag Attributes");
                if (M_PKCS12_cert_bag_type(bag) != NID_x509Certificate )
                                                                 return 1;
                if (!(x509 = PKCS12_certbag2x509(bag))) return 0;
                dump_cert_text (out, x509);
                PEM_write_bio_X509 (out, x509);
                X509_free(x509);
        break;

        case NID_safeContentsBag:
                if (options & INFO) BIO_printf (bio_err, "Safe Contents bag\n");
                print_attribs (out, bag->attrib, "Bag Attributes");
                return dump_certs_pkeys_bags (out, bag->value.safes, pass,
                                                            passlen, options, pempass);
                                        
        default:
                BIO_printf (bio_err, "Warning unsupported bag type: ");
                i2a_ASN1_OBJECT (bio_err, bag->type);
                BIO_printf (bio_err, "\n");
                return 1;
        break;
        }
        return 1;
}

/* Given a single certificate return a verified chain or NULL if error */

/* Hope this is OK .... */

int get_cert_chain (X509 *cert, X509_STORE *store, STACK_OF(X509) **chain)
{
        X509_STORE_CTX store_ctx;
        STACK_OF(X509) *chn;
        int i;

        /* FIXME: Should really check the return status of X509_STORE_CTX_init
         * for an error, but how that fits into the return value of this
         * function is less obvious. */
        X509_STORE_CTX_init(&store_ctx, store, cert, NULL);
        if (X509_verify_cert(&store_ctx) <= 0) {
                i = X509_STORE_CTX_get_error (&store_ctx);
                goto err;
        }
        chn =  X509_STORE_CTX_get1_chain(&store_ctx);
        i = 0;
        *chain = chn;
err:
        X509_STORE_CTX_cleanup(&store_ctx);
        
        return i;
}       

int alg_print (BIO *x, X509_ALGOR *alg)
{
        PBEPARAM *pbe;
        const unsigned char *p;
        p = alg->parameter->value.sequence->data;
        pbe = d2i_PBEPARAM (NULL, &p, alg->parameter->value.sequence->length);
        BIO_printf (bio_err, "%s, Iteration %ld\n", 
                OBJ_nid2ln(OBJ_obj2nid(alg->algorithm)),
                ASN1_INTEGER_get(pbe->iter));
        PBEPARAM_free (pbe);
        return 0;
}

/* Load all certificates from a given file */

int cert_load(BIO *in, STACK_OF(X509) *sk)
{
        int ret;
        X509 *cert;
        ret = 0;
#ifdef CRYPTO_MDEBUG
        CRYPTO_push_info("cert_load(): reading one cert");
#endif
        while((cert = PEM_read_bio_X509(in, NULL, NULL, NULL))) {
#ifdef CRYPTO_MDEBUG
                CRYPTO_pop_info();
#endif
                ret = 1;
                sk_X509_push(sk, cert);
#ifdef CRYPTO_MDEBUG
                CRYPTO_push_info("cert_load(): reading one cert");
#endif
        }
#ifdef CRYPTO_MDEBUG
        CRYPTO_pop_info();
#endif
        if(ret) ERR_clear_error();
        return ret;
}

/* Generalised attribute print: handle PKCS#8 and bag attributes */

int print_attribs (BIO *out, STACK_OF(X509_ATTRIBUTE) *attrlst,const char *name)
{
        X509_ATTRIBUTE *attr;
        ASN1_TYPE *av;
        char *value;
        int i, attr_nid;
        if(!attrlst) {
                BIO_printf(out, "%s: <No Attributes>\n", name);
                return 1;
        }
        if(!sk_X509_ATTRIBUTE_num(attrlst)) {
                BIO_printf(out, "%s: <Empty Attributes>\n", name);
                return 1;
        }
        BIO_printf(out, "%s\n", name);
        for(i = 0; i < sk_X509_ATTRIBUTE_num(attrlst); i++) {
                attr = sk_X509_ATTRIBUTE_value(attrlst, i);
                attr_nid = OBJ_obj2nid(attr->object);
                BIO_printf(out, "    ");
                if(attr_nid == NID_undef) {
                        i2a_ASN1_OBJECT (out, attr->object);
                        BIO_printf(out, ": ");
                } else BIO_printf(out, "%s: ", OBJ_nid2ln(attr_nid));

                if(sk_ASN1_TYPE_num(attr->value.set)) {
                        av = sk_ASN1_TYPE_value(attr->value.set, 0);
                        switch(av->type) {
                                case V_ASN1_BMPSTRING:
                                value = uni2asc(av->value.bmpstring->data,
                                               av->value.bmpstring->length);
                                BIO_printf(out, "%s\n", value);
                                OPENSSL_free(value);
                                break;

                                case V_ASN1_OCTET_STRING:
                                hex_prin(out, av->value.octet_string->data,
                                        av->value.octet_string->length);
                                BIO_printf(out, "\n");  
                                break;

                                case V_ASN1_BIT_STRING:
                                hex_prin(out, av->value.bit_string->data,
                                        av->value.bit_string->length);
                                BIO_printf(out, "\n");  
                                break;

                                default:
                                        BIO_printf(out, "<Unsupported tag %d>\n", av->type);
                                break;
                        }
                } else BIO_printf(out, "<No Values>\n");
        }
        return 1;
}

void hex_prin(BIO *out, unsigned char *buf, int len)
{
        int i;
        for (i = 0; i < len; i++) BIO_printf (out, "%02X ", buf[i]);
}

#endif

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