Ejemplo n.º 1
0
int main(int argc, char *argv[])
{
    FUNCTION f, *fp;
    LHASH_OF(FUNCTION) *prog = NULL;
    char **copied_argv = NULL;
    char *p, *pname;
    char buf[1024];
    const char *prompt;
    ARGS arg;
    int first, n, i, ret = 0;

    arg.argv = NULL;
    arg.size = 0;

    /* Set up some of the environment. */
    default_config_file = make_config_name();
    bio_in = dup_bio_in(FORMAT_TEXT);
    bio_out = dup_bio_out(FORMAT_TEXT);
    bio_err = dup_bio_err(FORMAT_TEXT);

#if defined(OPENSSL_SYS_VMS) && defined(__DECC)
    copied_argv = argv = copy_argv(&argc, argv);
#elif defined(_WIN32)
    /*
     * Replace argv[] with UTF-8 encoded strings.
     */
    win32_utf8argv(&argc, &argv);
#endif

    p = getenv("OPENSSL_DEBUG_MEMORY");
    if (p != NULL && strcmp(p, "on") == 0)
        CRYPTO_set_mem_debug(1);
    CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);

    if (getenv("OPENSSL_FIPS")) {
        BIO_printf(bio_err, "FIPS mode not supported.\n");
        return 1;
    }

    if (!apps_startup()) {
        BIO_printf(bio_err,
                   "FATAL: Startup failure (dev note: apps_startup() failed)\n");
        ERR_print_errors(bio_err);
        ret = 1;
        goto end;
    }

    prog = prog_init();
    pname = opt_progname(argv[0]);

    /* first check the program name */
    f.name = pname;
    fp = lh_FUNCTION_retrieve(prog, &f);
    if (fp != NULL) {
        argv[0] = pname;
        ret = fp->func(argc, argv);
        goto end;
    }

    /* If there is stuff on the command line, run with that. */
    if (argc != 1) {
        argc--;
        argv++;
        ret = do_cmd(prog, argc, argv);
        if (ret < 0)
            ret = 0;
        goto end;
    }

    /* ok, lets enter interactive mode */
    for (;;) {
        ret = 0;
        /* Read a line, continue reading if line ends with \ */
        for (p = buf, n = sizeof buf, i = 0, first = 1; n > 0; first = 0) {
            prompt = first ? "OpenSSL> " : "> ";
            p[0] = '\0';
#ifndef READLINE
            fputs(prompt, stdout);
            fflush(stdout);
            if (!fgets(p, n, stdin))
                goto end;
            if (p[0] == '\0')
                goto end;
            i = strlen(p);
            if (i <= 1)
                break;
            if (p[i - 2] != '\\')
                break;
            i -= 2;
            p += i;
            n -= i;
#else
            {
                extern char *readline(const char *);
                extern void add_history(const char *cp);
                char *text;

                text = readline(prompt);
                if (text == NULL)
                    goto end;
                i = strlen(text);
                if (i == 0 || i > n)
                    break;
                if (text[i - 1] != '\\') {
                    p += strlen(strcpy(p, text));
                    free(text);
                    add_history(buf);
                    break;
                }

                text[i - 1] = '\0';
                p += strlen(strcpy(p, text));
                free(text);
                n -= i;
            }
#endif
        }

        if (!chopup_args(&arg, buf)) {
            BIO_printf(bio_err, "Can't parse (no memory?)\n");
            break;
        }

        ret = do_cmd(prog, arg.argc, arg.argv);
        if (ret == EXIT_THE_PROGRAM) {
            ret = 0;
            goto end;
        }
        if (ret != 0)
            BIO_printf(bio_err, "error in %s\n", arg.argv[0]);
        (void)BIO_flush(bio_out);
        (void)BIO_flush(bio_err);
    }
    ret = 1;
 end:
    OPENSSL_free(copied_argv);
    OPENSSL_free(default_config_file);
    lh_FUNCTION_free(prog);
    OPENSSL_free(arg.argv);
    app_RAND_write();

    BIO_free(bio_in);
    BIO_free_all(bio_out);
    apps_shutdown();
#ifndef OPENSSL_NO_CRYPTO_MDEBUG
    if (CRYPTO_mem_leaks(bio_err) <= 0)
        ret = 1;
#endif
    BIO_free(bio_err);
    EXIT(ret);
}
Ejemplo n.º 2
0
int main(int argc, char *argv[])
{
    FUNCTION f, *fp;
    LHASH_OF(FUNCTION) *prog = NULL;
    char **copied_argv = NULL;
    char *p, *pname;
    char buf[1024];
    const char *prompt;
    ARGS arg;
    int first, n, i, ret = 0;

    arg.argv = NULL;
    arg.size = 0;

    /* Set up some of the environment. */
    default_config_file = make_config_name();
    bio_in = dup_bio_in(FORMAT_TEXT);
    bio_out = dup_bio_out(FORMAT_TEXT);
    bio_err = BIO_new_fp(stderr, BIO_NOCLOSE | BIO_FP_TEXT);

#if defined( OPENSSL_SYS_VMS)
    copied_argv = argv = copy_argv(&argc, argv);
#endif

    p = getenv("OPENSSL_DEBUG_MEMORY");
    if (p == NULL)
        /* if not set, use compiled-in default */
        ;
    else if (strcmp(p, "off") != 0) {
        CRYPTO_malloc_debug_init();
        CRYPTO_set_mem_debug_options(V_CRYPTO_MDEBUG_ALL);
    } else {
        CRYPTO_set_mem_debug_functions(0, 0, 0, 0, 0);
    }
    CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
    CRYPTO_set_locking_callback(lock_dbg_cb);

    if (getenv("OPENSSL_FIPS")) {
#ifdef OPENSSL_FIPS
        if (!FIPS_mode_set(1)) {
            ERR_load_crypto_strings();
            ERR_print_errors(bio_err);
            return 1;
        }
#else
        BIO_printf(bio_err, "FIPS mode not supported.\n");
        return 1;
#endif
    }

    if (!apps_startup())
        goto end;

    prog = prog_init();
    pname = opt_progname(argv[0]);

    /* first check the program name */
    f.name = pname;
    fp = lh_FUNCTION_retrieve(prog, &f);
    if (fp != NULL) {
        argv[0] = pname;
        ret = fp->func(argc, argv);
        goto end;
    }

    /* If there is stuff on the command line, run with that. */
    if (argc != 1) {
        argc--;
        argv++;
        ret = do_cmd(prog, argc, argv);
        if (ret < 0)
            ret = 0;
        goto end;
    }

    /* ok, lets enter interactive mode */
    for (;;) {
        ret = 0;
        /* Read a line, continue reading if line ends with \ */
        for (p = buf, n = sizeof buf, i = 0, first = 1; n > 0; first = 0) {
            prompt = first ? "OpenSSL> " : "> ";
            p[0] = '\0';
#ifndef READLINE
            fputs(prompt, stdout);
            fflush(stdout);
            if (!fgets(p, n, stdin))
                goto end;
            if (p[0] == '\0')
                goto end;
            i = strlen(p);
            if (i <= 1)
                break;
            if (p[i - 2] != '\\')
                break;
            i -= 2;
            p += i;
            n -= i;
#else
            {
                extern char *readline(const char *);
                extern void add_history(const char *cp);
                char *text;

                char *text = readline(prompt);
                if (text == NULL)
                    goto end;
                i = strlen(text);
                if (i == 0 || i > n)
                    break;
                if (text[i - 1] != '\\') {
                    p += strlen(strcpy(p, text));
                    free(text);
                    add_history(buf);
                    break;
                }

                text[i - 1] = '\0';
                p += strlen(strcpy(p, text));
                free(text);
                n -= i;
            }
#endif
        }

        if (!chopup_args(&arg, buf)) {
            BIO_printf(bio_err, "Can't parse (no memory?)\n");
            break;
        }

        ret = do_cmd(prog, arg.argc, arg.argv);
        if (ret == EXIT_THE_PROGRAM) {
            ret = 0;
            goto end;
        }
        if (ret != 0)
            BIO_printf(bio_err, "error in %s\n", arg.argv[0]);
        (void)BIO_flush(bio_out);
        (void)BIO_flush(bio_err);
    }
    ret = 1;
 end:
    OPENSSL_free(copied_argv);
    OPENSSL_free(default_config_file);
    NCONF_free(config);
    config = NULL;
    lh_FUNCTION_free(prog);
    OPENSSL_free(arg.argv);

    BIO_free(bio_in);
    BIO_free_all(bio_out);
    apps_shutdown();
    CRYPTO_mem_leaks(bio_err);
    BIO_free(bio_err);
    return (ret);
}
Ejemplo n.º 3
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);
}