Exemple #1
0
/*
 * Parse the next flag (and value if specified), return 0 if done, -1 on
 * error, otherwise the flag's retval.
 */
int opt_next(void)
{
    char *p;
    const OPTIONS *o;
    int ival;
    long lval;
    unsigned long ulval;
    ossl_intmax_t imval;
    ossl_uintmax_t umval;

    /* Look at current arg; at end of the list? */
    arg = NULL;
    p = argv[opt_index];
    if (p == NULL)
        return 0;

    /* If word doesn't start with a -, we're done. */
    if (*p != '-')
        return 0;

    /* Hit "--" ? We're done. */
    opt_index++;
    if (strcmp(p, "--") == 0)
        return 0;

    /* Allow -nnn and --nnn */
    if (*++p == '-')
        p++;
    flag = p - 1;

    /* If we have --flag=foo, snip it off */
    if ((arg = strchr(p, '=')) != NULL)
        *arg++ = '\0';
    for (o = opts; o->name; ++o) {
        /* If not this option, move on to the next one. */
        if (strcmp(p, o->name) != 0)
            continue;

        /* If it doesn't take a value, make sure none was given. */
        if (o->valtype == 0 || o->valtype == '-') {
            if (arg) {
                BIO_printf(bio_err,
                           "%s: Option -%s does not take a value\n", prog, p);
                return -1;
            }
            return o->retval;
        }

        /* Want a value; get the next param if =foo not used. */
        if (arg == NULL) {
            if (argv[opt_index] == NULL) {
                BIO_printf(bio_err,
                           "%s: Option -%s needs a value\n", prog, o->name);
                return -1;
            }
            arg = argv[opt_index++];
        }

        /* Syntax-check value. */
        switch (o->valtype) {
        default:
        case 's':
            /* Just a string. */
            break;
        case '/':
            if (app_isdir(arg) >= 0)
                break;
            BIO_printf(bio_err, "%s: Not a directory: %s\n", prog, arg);
            return -1;
        case '<':
            /* Input file. */
            if (strcmp(arg, "-") == 0 || app_access(arg, R_OK) >= 0)
                break;
            BIO_printf(bio_err,
                       "%s: Cannot open input file %s, %s\n",
                       prog, arg, strerror(errno));
            return -1;
        case '>':
            /* Output file. */
            if (strcmp(arg, "-") == 0 || app_access(arg, W_OK) >= 0 || errno == ENOENT)
                break;
            BIO_printf(bio_err,
                       "%s: Cannot open output file %s, %s\n",
                       prog, arg, strerror(errno));
            return -1;
        case 'p':
        case 'n':
            if (!opt_int(arg, &ival)
                    || (o->valtype == 'p' && ival <= 0)) {
                BIO_printf(bio_err,
                           "%s: Non-positive number \"%s\" for -%s\n",
                           prog, arg, o->name);
                return -1;
            }
            break;
        case 'M':
            if (!opt_imax(arg, &imval)) {
                BIO_printf(bio_err,
                           "%s: Invalid number \"%s\" for -%s\n",
                           prog, arg, o->name);
                return -1;
            }
            break;
        case 'U':
            if (!opt_umax(arg, &umval)) {
                BIO_printf(bio_err,
                           "%s: Invalid number \"%s\" for -%s\n",
                           prog, arg, o->name);
                return -1;
            }
            break;
        case 'l':
            if (!opt_long(arg, &lval)) {
                BIO_printf(bio_err,
                           "%s: Invalid number \"%s\" for -%s\n",
                           prog, arg, o->name);
                return -1;
            }
            break;
        case 'u':
            if (!opt_ulong(arg, &ulval)) {
                BIO_printf(bio_err,
                           "%s: Invalid number \"%s\" for -%s\n",
                           prog, arg, o->name);
                return -1;
            }
            break;
        case 'E':
        case 'F':
        case 'f':
            if (opt_format(arg,
                           o->valtype == 'E' ? OPT_FMT_PDE :
                           o->valtype == 'F' ? OPT_FMT_PEMDER
                           : OPT_FMT_ANY, &ival))
                break;
            BIO_printf(bio_err,
                       "%s: Invalid format \"%s\" for -%s\n",
                       prog, arg, o->name);
            return -1;
        }

        /* Return the flag value. */
        return o->retval;
    }
    if (unknown != NULL) {
        dunno = p;
        return unknown->retval;
    }
    BIO_printf(bio_err, "%s: Option unknown option -%s\n", prog, p);
    return -1;
}
Exemple #2
0
int pkcs8_main(int argc, char **argv)
{
    BIO *in = NULL, *out = NULL;
    ENGINE *e = NULL;
    EVP_PKEY *pkey = NULL;
    PKCS8_PRIV_KEY_INFO *p8inf = NULL;
    X509_SIG *p8 = NULL;
    const EVP_CIPHER *cipher = NULL;
    char *infile = NULL, *outfile = NULL;
    char *passinarg = NULL, *passoutarg = NULL, *prog;
    char pass[50], *passin = NULL, *passout = NULL, *p8pass = NULL;
    OPTION_CHOICE o;
    int nocrypt = 0, ret = 1, iter = PKCS12_DEFAULT_ITER, p8_broken = PKCS8_OK;
    int informat = FORMAT_PEM, outformat = FORMAT_PEM, topk8 = 0, pbe_nid = -1;
    int private = 0;
#ifndef OPENSSL_NO_SCRYPT
    unsigned long scrypt_N = 0, scrypt_r = 0, scrypt_p = 0;
#endif

    prog = opt_init(argc, argv, pkcs8_options);
    while ((o = opt_next()) != OPT_EOF) {
        switch (o) {
        case OPT_EOF:
        case OPT_ERR:
 opthelp:
            BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
            goto end;
        case OPT_HELP:
            opt_help(pkcs8_options);
            ret = 0;
            goto end;
        case OPT_INFORM:
            if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
                goto opthelp;
            break;
        case OPT_IN:
            infile = opt_arg();
            break;
        case OPT_OUTFORM:
            if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
                goto opthelp;
            break;
        case OPT_OUT:
            outfile = opt_arg();
            break;
        case OPT_TOPK8:
            topk8 = 1;
            break;
        case OPT_NOITER:
            iter = 1;
            break;
        case OPT_NOCRYPT:
            nocrypt = 1;
            break;
        case OPT_NOOCT:
            p8_broken = PKCS8_NO_OCTET;
            break;
        case OPT_NSDB:
            p8_broken = PKCS8_NS_DB;
            break;
        case OPT_EMBED:
            p8_broken = PKCS8_EMBEDDED_PARAM;
            break;
        case OPT_V2:
            if (!opt_cipher(opt_arg(), &cipher))
                goto opthelp;
            break;
        case OPT_V1:
            pbe_nid = OBJ_txt2nid(opt_arg());
            if (pbe_nid == NID_undef) {
                BIO_printf(bio_err,
                           "%s: Unknown PBE algorithm %s\n", prog, opt_arg());
                goto opthelp;
            }
            break;
        case OPT_V2PRF:
            pbe_nid = OBJ_txt2nid(opt_arg());
            if (!EVP_PBE_find(EVP_PBE_TYPE_PRF, pbe_nid, NULL, NULL, 0)) {
                BIO_printf(bio_err,
                           "%s: Unknown PRF algorithm %s\n", prog, opt_arg());
                goto opthelp;
            }
            break;
        case OPT_ITER:
            if (!opt_int(opt_arg(), &iter))
                goto opthelp;
            break;
        case OPT_PASSIN:
            passinarg = opt_arg();
            break;
        case OPT_PASSOUT:
            passoutarg = opt_arg();
            break;
        case OPT_ENGINE:
            e = setup_engine(opt_arg(), 0);
            break;
#ifndef OPENSSL_NO_SCRYPT
        case OPT_SCRYPT:
            scrypt_N = 1024;
            scrypt_r = 8;
            scrypt_p = 16;
            if (cipher == NULL)
                cipher = EVP_aes_256_cbc();
            break;
        case OPT_SCRYPT_N:
            if (!opt_ulong(opt_arg(), &scrypt_N))
                goto opthelp;
            break;
        case OPT_SCRYPT_R:
            if (!opt_ulong(opt_arg(), &scrypt_r))
                goto opthelp;
            break;
        case OPT_SCRYPT_P:
            if (!opt_ulong(opt_arg(), &scrypt_p))
                goto opthelp;
            break;
#endif
        }
    }
    argc = opt_num_rest();
    argv = opt_rest();
    private = 1;
Exemple #3
0
int opt_verify(int opt, X509_VERIFY_PARAM *vpm)
{
    unsigned long ul;
    int i;
    ASN1_OBJECT *otmp;
    X509_PURPOSE *xptmp;
    const X509_VERIFY_PARAM *vtmp;

    assert(vpm != NULL);
    assert(opt > OPT_V__FIRST);
    assert(opt < OPT_V__LAST);

    switch ((enum range)opt) {
    case OPT_V__FIRST:
    case OPT_V__LAST:
        return 0;
    case OPT_V_POLICY:
        otmp = OBJ_txt2obj(opt_arg(), 0);
        if (otmp == NULL) {
            BIO_printf(bio_err, "%s: Invalid Policy %s\n", prog, opt_arg());
            return 0;
        }
        X509_VERIFY_PARAM_add0_policy(vpm, otmp);
        break;
    case OPT_V_PURPOSE:
        i = X509_PURPOSE_get_by_sname(opt_arg());
        if (i < 0) {
            BIO_printf(bio_err, "%s: Invalid purpose %s\n", prog, opt_arg());
            return 0;
        }
        xptmp = X509_PURPOSE_get0(i);
        i = X509_PURPOSE_get_id(xptmp);
        X509_VERIFY_PARAM_set_purpose(vpm, i);
        break;
    case OPT_V_VERIFY_NAME:
        vtmp = X509_VERIFY_PARAM_lookup(opt_arg());
        if (vtmp == NULL) {
            BIO_printf(bio_err, "%s: Invalid verify name %s\n",
                       prog, opt_arg());
            return 0;
        }
        X509_VERIFY_PARAM_set1(vpm, vtmp);
        break;
    case OPT_V_VERIFY_DEPTH:
        i = atoi(opt_arg());
        if (i >= 0)
            X509_VERIFY_PARAM_set_depth(vpm, i);
        break;
    case OPT_V_ATTIME:
        opt_ulong(opt_arg(), &ul);
        if (ul)
            X509_VERIFY_PARAM_set_time(vpm, (time_t)ul);
        break;
    case OPT_V_VERIFY_HOSTNAME:
        if (!X509_VERIFY_PARAM_set1_host(vpm, opt_arg(), 0))
            return 0;
        break;
    case OPT_V_VERIFY_EMAIL:
        if (!X509_VERIFY_PARAM_set1_email(vpm, opt_arg(), 0))
            return 0;
        break;
    case OPT_V_VERIFY_IP:
        if (!X509_VERIFY_PARAM_set1_ip_asc(vpm, opt_arg()))
            return 0;
        break;
    case OPT_V_IGNORE_CRITICAL:
        X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_IGNORE_CRITICAL);
        break;
    case OPT_V_ISSUER_CHECKS:
        X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_CB_ISSUER_CHECK);
        break;
    case OPT_V_CRL_CHECK:
        X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_CRL_CHECK);
        break;
    case OPT_V_CRL_CHECK_ALL:
        X509_VERIFY_PARAM_set_flags(vpm,
                                    X509_V_FLAG_CRL_CHECK |
                                    X509_V_FLAG_CRL_CHECK_ALL);
        break;
    case OPT_V_POLICY_CHECK:
        X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_POLICY_CHECK);
        break;
    case OPT_V_EXPLICIT_POLICY:
        X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_EXPLICIT_POLICY);
        break;
    case OPT_V_INHIBIT_ANY:
        X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_INHIBIT_ANY);
        break;
    case OPT_V_INHIBIT_MAP:
        X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_INHIBIT_MAP);
        break;
    case OPT_V_X509_STRICT:
        X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_X509_STRICT);
        break;
    case OPT_V_EXTENDED_CRL:
        X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_EXTENDED_CRL_SUPPORT);
        break;
    case OPT_V_USE_DELTAS:
        X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_USE_DELTAS);
        break;
    case OPT_V_POLICY_PRINT:
        X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_NOTIFY_POLICY);
        break;
    case OPT_V_CHECK_SS_SIG:
        X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_CHECK_SS_SIGNATURE);
        break;
    case OPT_V_TRUSTED_FIRST:
        X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_TRUSTED_FIRST);
        break;
    case OPT_V_SUITEB_128_ONLY:
        X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_SUITEB_128_LOS_ONLY);
        break;
    case OPT_V_SUITEB_128:
        X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_SUITEB_128_LOS);
        break;
    case OPT_V_SUITEB_192:
        X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_SUITEB_192_LOS);
        break;
    case OPT_V_PARTIAL_CHAIN:
        X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_PARTIAL_CHAIN);
        break;
    case OPT_V_NO_ALT_CHAINS:
        X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_NO_ALT_CHAINS);
    }
    return 1;

}
Exemple #4
0
int enc_main(int argc, char **argv)
{
    static char buf[128];
    static const char magic[] = "Salted__";
    BIO *in = NULL, *out = NULL, *b64 = NULL, *benc = NULL, *rbio =
                                            NULL, *wbio = NULL;
    EVP_CIPHER_CTX *ctx = NULL;
    const EVP_CIPHER *cipher = NULL, *c;
    const EVP_MD *dgst = NULL;
    char *hkey = NULL, *hiv = NULL, *hsalt = NULL, *p;
    char *infile = NULL, *outfile = NULL, *prog;
    char *str = NULL, *passarg = NULL, *pass = NULL, *strbuf = NULL;
    char mbuf[sizeof magic - 1];
    OPTION_CHOICE o;
    int bsize = BSIZE, verbose = 0, debug = 0, olb64 = 0, nosalt = 0;
    int enc = 1, printkey = 0, i, k;
    int base64 = 0, informat = FORMAT_BINARY, outformat = FORMAT_BINARY;
    int ret = 1, inl, nopad = 0, non_fips_allow = 0;
    unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
    unsigned char *buff = NULL, salt[PKCS5_SALT_LEN];
    unsigned long n;
#ifdef ZLIB
    int do_zlib = 0;
    BIO *bzl = NULL;
#endif

    /* first check the program name */
    prog = opt_progname(argv[0]);
    if (strcmp(prog, "base64") == 0)
        base64 = 1;
#ifdef ZLIB
    else if (strcmp(prog, "zlib") == 0)
        do_zlib = 1;
#endif
    else {
        cipher = EVP_get_cipherbyname(prog);
        if (cipher == NULL && strcmp(prog, "enc") != 0) {
            BIO_printf(bio_err, "%s is not a known cipher\n", prog);
            goto end;
        }
    }

    prog = opt_init(argc, argv, enc_options);
    while ((o = opt_next()) != OPT_EOF) {
        switch (o) {
        case OPT_EOF:
        case OPT_ERR:
opthelp:
            BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
            goto end;
        case OPT_HELP:
            opt_help(enc_options);
            ret = 0;
            BIO_printf(bio_err, "Cipher Types\n");
            OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH,
                                   show_ciphers, bio_err);
            BIO_printf(bio_err, "\n");
            goto end;
        case OPT_E:
            enc = 1;
            break;
        case OPT_IN:
            infile = opt_arg();
            break;
        case OPT_OUT:
            outfile = opt_arg();
            break;
        case OPT_PASS:
            passarg = opt_arg();
            break;
        case OPT_ENGINE:
            (void)setup_engine(opt_arg(), 0);
            break;
        case OPT_D:
            enc = 0;
            break;
        case OPT_P:
            printkey = 1;
            break;
        case OPT_V:
            verbose = 1;
            break;
        case OPT_NOPAD:
            nopad = 1;
            break;
        case OPT_SALT:
            nosalt = 0;
            break;
        case OPT_NOSALT:
            nosalt = 1;
            break;
        case OPT_DEBUG:
            debug = 1;
            break;
        case OPT_UPPER_P:
            printkey = 2;
            break;
        case OPT_UPPER_A:
            olb64 = 1;
            break;
        case OPT_A:
            base64 = 1;
            break;
        case OPT_Z:
#ifdef ZLIB
            do_zlib = 1;
#endif
            break;
        case OPT_BUFSIZE:
            p = opt_arg();
            i = (int)strlen(p) - 1;
            k = i >= 1 && p[i] == 'k';
            if (k)
                p[i] = '\0';
            if (!opt_ulong(opt_arg(), &n))
                goto opthelp;
            if (k)
                n *= 1024;
            bsize = (int)n;
            break;
        case OPT_K:
            str = opt_arg();
            break;
        case OPT_KFILE:
            in = bio_open_default(opt_arg(), 'r', FORMAT_TEXT);
            if (in == NULL)
                goto opthelp;
            i = BIO_gets(in, buf, sizeof buf);
            BIO_free(in);
            in = NULL;
            if (i <= 0) {
                BIO_printf(bio_err,
                           "%s Can't read key from %s\n", prog, opt_arg());
                goto opthelp;
            }
            while (--i > 0 && (buf[i] == '\r' || buf[i] == '\n'))
                buf[i] = '\0';
            if (i <= 0) {
                BIO_printf(bio_err, "%s: zero length password\n", prog);
                goto opthelp;
            }
            str = buf;
            break;
        case OPT_UPPER_K:
            hkey = opt_arg();
            break;
        case OPT_UPPER_S:
            hsalt = opt_arg();
            break;
        case OPT_IV:
            hiv = opt_arg();
            break;
        case OPT_MD:
            if (!opt_md(opt_arg(), &dgst))
                goto opthelp;
            break;
        case OPT_NON_FIPS_ALLOW:
            non_fips_allow = 1;
            break;
        case OPT_CIPHER:
            if (!opt_cipher(opt_unknown(), &c))
                goto opthelp;
            cipher = c;
            break;
        case OPT_NONE:
            cipher = NULL;
            break;
        }
    }
    argc = opt_num_rest();
    argv = opt_rest();

    if (cipher && EVP_CIPHER_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) {
        BIO_printf(bio_err, "%s: AEAD ciphers not supported\n", prog);
        goto end;
    }

    if (cipher && (EVP_CIPHER_mode(cipher) == EVP_CIPH_XTS_MODE)) {
        BIO_printf(bio_err, "%s XTS ciphers not supported\n", prog);
        goto end;
    }

    if (dgst == NULL)
        dgst = EVP_sha256();

    /* It must be large enough for a base64 encoded line */
    if (base64 && bsize < 80)
        bsize = 80;
    if (verbose)
        BIO_printf(bio_err, "bufsize=%d\n", bsize);

    if (base64) {
        if (enc)
            outformat = FORMAT_BASE64;
        else
            informat = FORMAT_BASE64;
    }

    strbuf = app_malloc(SIZE, "strbuf");
    buff = app_malloc(EVP_ENCODE_LENGTH(bsize), "evp buffer");

    if (debug) {
        BIO_set_callback(in, BIO_debug_callback);
        BIO_set_callback(out, BIO_debug_callback);
        BIO_set_callback_arg(in, (char *)bio_err);
        BIO_set_callback_arg(out, (char *)bio_err);
    }

    if (infile == NULL) {
        unbuffer(stdin);
        in = dup_bio_in(informat);
    } else
        in = bio_open_default(infile, 'r', informat);
    if (in == NULL)
        goto end;

    if (!str && passarg) {
        if (!app_passwd(passarg, NULL, &pass, NULL)) {
            BIO_printf(bio_err, "Error getting password\n");
            goto end;
        }
        str = pass;
    }

    if ((str == NULL) && (cipher != NULL) && (hkey == NULL)) {
        for (;;) {
            char prompt[200];

            BIO_snprintf(prompt, sizeof prompt, "enter %s %s password:"******"encryption" : "decryption");
            strbuf[0] = '\0';
            i = EVP_read_pw_string((char *)strbuf, SIZE, prompt, enc);
            if (i == 0) {
                if (strbuf[0] == '\0') {
                    ret = 1;
                    goto end;
                }
                str = strbuf;
                break;
            }
            if (i < 0) {
                BIO_printf(bio_err, "bad password read\n");
                goto end;
            }
        }
    }

    out = bio_open_default(outfile, 'w', outformat);
    if (out == NULL)
        goto end;

    rbio = in;
    wbio = out;

#ifdef ZLIB
    if (do_zlib) {
        if ((bzl = BIO_new(BIO_f_zlib())) == NULL)
            goto end;
        if (enc)
            wbio = BIO_push(bzl, wbio);
        else
            rbio = BIO_push(bzl, rbio);
    }
#endif

    if (base64) {
        if ((b64 = BIO_new(BIO_f_base64())) == NULL)
            goto end;
        if (debug) {
            BIO_set_callback(b64, BIO_debug_callback);
            BIO_set_callback_arg(b64, (char *)bio_err);
        }
        if (olb64)
            BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
        if (enc)
            wbio = BIO_push(b64, wbio);
        else
            rbio = BIO_push(b64, rbio);
    }

    if (cipher != NULL) {
        /*
         * Note that str is NULL if a key was passed on the command line, so
         * we get no salt in that case. Is this a bug?
         */
        if (str != NULL) {
            /*
             * Salt handling: if encrypting generate a salt and write to
             * output BIO. If decrypting read salt from input BIO.
             */
            unsigned char *sptr;
            if (nosalt)
                sptr = NULL;
            else {
                if (enc) {
                    if (hsalt) {
                        if (!set_hex(hsalt, salt, sizeof salt)) {
                            BIO_printf(bio_err, "invalid hex salt value\n");
                            goto end;
                        }
                    } else if (RAND_bytes(salt, sizeof salt) <= 0)
                        goto end;
                    /*
                     * If -P option then don't bother writing
                     */
                    if ((printkey != 2)
                            && (BIO_write(wbio, magic,
                                          sizeof magic - 1) != sizeof magic - 1
                                || BIO_write(wbio,
                                             (char *)salt,
                                             sizeof salt) != sizeof salt)) {
                        BIO_printf(bio_err, "error writing output file\n");
                        goto end;
                    }
                } else if (BIO_read(rbio, mbuf, sizeof mbuf) != sizeof mbuf
                           || BIO_read(rbio,
                                       (unsigned char *)salt,
                                       sizeof salt) != sizeof salt) {
                    BIO_printf(bio_err, "error reading input file\n");
                    goto end;
                } else if (memcmp(mbuf, magic, sizeof magic - 1)) {
                    BIO_printf(bio_err, "bad magic number\n");
                    goto end;
                }

                sptr = salt;
            }

            if (!EVP_BytesToKey(cipher, dgst, sptr,
                                (unsigned char *)str,
                                strlen(str), 1, key, iv)) {
                BIO_printf(bio_err, "EVP_BytesToKey failed\n");
                goto end;
            }
            /*
             * zero the complete buffer or the string passed from the command
             * line bug picked up by Larry J. Hughes Jr. <*****@*****.**>
             */
            if (str == strbuf)
                OPENSSL_cleanse(str, SIZE);
            else
                OPENSSL_cleanse(str, strlen(str));
        }
        if (hiv != NULL) {
            int siz = EVP_CIPHER_iv_length(cipher);
            if (siz == 0) {
                BIO_printf(bio_err, "warning: iv not use by this cipher\n");
            } else if (!set_hex(hiv, iv, sizeof iv)) {
                BIO_printf(bio_err, "invalid hex iv value\n");
                goto end;
            }
        }
        if ((hiv == NULL) && (str == NULL)
                && EVP_CIPHER_iv_length(cipher) != 0) {
            /*
             * No IV was explicitly set and no IV was generated during
             * EVP_BytesToKey. Hence the IV is undefined, making correct
             * decryption impossible.
             */
            BIO_printf(bio_err, "iv undefined\n");
            goto end;
        }
        if ((hkey != NULL) && !set_hex(hkey, key, EVP_CIPHER_key_length(cipher))) {
            BIO_printf(bio_err, "invalid hex key value\n");
            goto end;
        }

        if ((benc = BIO_new(BIO_f_cipher())) == NULL)
            goto end;

        /*
         * Since we may be changing parameters work on the encryption context
         * rather than calling BIO_set_cipher().
         */

        BIO_get_cipher_ctx(benc, &ctx);

        if (non_fips_allow)
            EVP_CIPHER_CTX_set_flags(ctx, EVP_CIPH_FLAG_NON_FIPS_ALLOW);

        if (!EVP_CipherInit_ex(ctx, cipher, NULL, NULL, NULL, enc)) {
            BIO_printf(bio_err, "Error setting cipher %s\n",
                       EVP_CIPHER_name(cipher));
            ERR_print_errors(bio_err);
            goto end;
        }

        if (nopad)
            EVP_CIPHER_CTX_set_padding(ctx, 0);

        if (!EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, enc)) {
            BIO_printf(bio_err, "Error setting cipher %s\n",
                       EVP_CIPHER_name(cipher));
            ERR_print_errors(bio_err);
            goto end;
        }

        if (debug) {
            BIO_set_callback(benc, BIO_debug_callback);
            BIO_set_callback_arg(benc, (char *)bio_err);
        }

        if (printkey) {
            if (!nosalt) {
                printf("salt=");
                for (i = 0; i < (int)sizeof(salt); i++)
                    printf("%02X", salt[i]);
                printf("\n");
            }
            if (cipher->key_len > 0) {
                printf("key=");
                for (i = 0; i < cipher->key_len; i++)
                    printf("%02X", key[i]);
                printf("\n");
            }
            if (cipher->iv_len > 0) {
                printf("iv =");
                for (i = 0; i < cipher->iv_len; i++)
                    printf("%02X", iv[i]);
                printf("\n");
            }
            if (printkey == 2) {
                ret = 0;
                goto end;
            }
        }
    }

    /* Only encrypt/decrypt as we write the file */
    if (benc != NULL)
        wbio = BIO_push(benc, wbio);

    for (;;) {
        inl = BIO_read(rbio, (char *)buff, bsize);
        if (inl <= 0)
            break;
        if (BIO_write(wbio, (char *)buff, inl) != inl) {
            BIO_printf(bio_err, "error writing output file\n");
            goto end;
        }
    }
    if (!BIO_flush(wbio)) {
        BIO_printf(bio_err, "bad decrypt\n");
        goto end;
    }

    ret = 0;
    if (verbose) {
        BIO_printf(bio_err, "bytes read   :%8"PRIu64"\n", BIO_number_read(in));
        BIO_printf(bio_err, "bytes written:%8"PRIu64"\n", BIO_number_written(out));
    }
end:
    ERR_print_errors(bio_err);
    OPENSSL_free(strbuf);
    OPENSSL_free(buff);
    BIO_free(in);
    BIO_free_all(out);
    BIO_free(benc);
    BIO_free(b64);
#ifdef ZLIB
    BIO_free(bzl);
#endif
    OPENSSL_free(pass);
    return (ret);
}