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IABSD.fr/src/usr.bin/openssl/openssl.c

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  • Author : kenjiro
    Date : 2026-01-02 00:14:24
    Hash : e59bb762
    Message : openssl: list SHA-3 digests in help output Register sha3-{224,256,384,512} as dgst commands so they appear in openssl help. Without this, SHA-3 support is easy to miss and looks unsupported from the command line. ok tb jsing

  • usr.bin/openssl/openssl.c
  • /* $OpenBSD: openssl.c,v 1.41 2026/01/02 00:14:24 kenjiro Exp $ */
    /* 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.]
     */
    /* ====================================================================
     * Copyright (c) 1998-2006 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
     *    openssl-core@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 <err.h>
    #include <signal.h>
    #include <stdio.h>
    #include <string.h>
    #include <stdlib.h>
    #include <unistd.h>
    
    #include "apps.h"
    
    #include <openssl/bio.h>
    #include <openssl/conf.h>
    #include <openssl/crypto.h>
    #include <openssl/err.h>
    #include <openssl/lhash.h>
    #include <openssl/pem.h>
    #include <openssl/ssl.h>
    #include <openssl/x509.h>
    
    #define FUNC_TYPE_GENERAL       1
    #define FUNC_TYPE_MD            2
    #define FUNC_TYPE_CIPHER        3
    #define FUNC_TYPE_PKEY          4
    #define FUNC_TYPE_MD_ALG        5
    #define FUNC_TYPE_CIPHER_ALG    6
    
    typedef struct {
            int type;
            const char *name;
            int (*func)(int argc, char **argv);
    } FUNCTION;
    
    DECLARE_LHASH_OF(FUNCTION);
    
    FUNCTION functions[] = {
    
    	/* General functions. */
    	{ FUNC_TYPE_GENERAL, "asn1parse", asn1parse_main },
    	{ FUNC_TYPE_GENERAL, "ca", ca_main },
    	{ FUNC_TYPE_GENERAL, "certhash", certhash_main },
    	{ FUNC_TYPE_GENERAL, "ciphers", ciphers_main },
    #ifndef OPENSSL_NO_CMS
    	{ FUNC_TYPE_GENERAL, "cms", cms_main },
    #endif
    	{ FUNC_TYPE_GENERAL, "crl2pkcs7", crl2pkcs7_main },
    	{ FUNC_TYPE_GENERAL, "crl", crl_main },
    	{ FUNC_TYPE_GENERAL, "dgst", dgst_main },
    	{ FUNC_TYPE_GENERAL, "enc", enc_main },
    	{ FUNC_TYPE_GENERAL, "errstr", errstr_main },
    	{ FUNC_TYPE_GENERAL, "genpkey", genpkey_main },
    #ifndef OPENSSL_NO_OCSP
    	{ FUNC_TYPE_GENERAL, "ocsp", ocsp_main },
    #endif
    	{ FUNC_TYPE_GENERAL, "passwd", passwd_main },
    	{ FUNC_TYPE_GENERAL, "pkcs7", pkcs7_main },
    	{ FUNC_TYPE_GENERAL, "pkcs8", pkcs8_main },
    #if !defined(OPENSSL_NO_DES) && !defined(OPENSSL_NO_SHA1)
    	{ FUNC_TYPE_GENERAL, "pkcs12", pkcs12_main },
    #endif
    	{ FUNC_TYPE_GENERAL, "pkey", pkey_main },
    	{ FUNC_TYPE_GENERAL, "pkeyparam", pkeyparam_main },
    	{ FUNC_TYPE_GENERAL, "pkeyutl", pkeyutl_main },
    	{ FUNC_TYPE_GENERAL, "prime", prime_main },
    	{ FUNC_TYPE_GENERAL, "rand", rand_main },
    	{ FUNC_TYPE_GENERAL, "req", req_main },
    	{ FUNC_TYPE_GENERAL, "s_client", s_client_main },
    	{ FUNC_TYPE_GENERAL, "s_server", s_server_main },
    	{ FUNC_TYPE_GENERAL, "s_time", s_time_main },
    	{ FUNC_TYPE_GENERAL, "sess_id", sess_id_main },
    	{ FUNC_TYPE_GENERAL, "smime", smime_main },
    #ifndef OPENSSL_NO_SPEED
    	{ FUNC_TYPE_GENERAL, "speed", speed_main },
    #endif
    	{ FUNC_TYPE_GENERAL, "ts", ts_main },
    	{ FUNC_TYPE_GENERAL, "verify", verify_main },
    	{ FUNC_TYPE_GENERAL, "version", version_main },
    	{ FUNC_TYPE_GENERAL, "x509", x509_main },
    
    #ifndef OPENSSL_NO_DH
    	{ FUNC_TYPE_GENERAL, "dh", dh_main },
    	{ FUNC_TYPE_GENERAL, "dhparam", dhparam_main },
    	{ FUNC_TYPE_GENERAL, "gendh", gendh_main },
    #endif
    #ifndef OPENSSL_NO_DSA
    	{ FUNC_TYPE_GENERAL, "dsa", dsa_main },
    	{ FUNC_TYPE_GENERAL, "dsaparam", dsaparam_main },
    	{ FUNC_TYPE_GENERAL, "gendsa", gendsa_main },
    #endif
    #ifndef OPENSSL_NO_EC
    	{ FUNC_TYPE_GENERAL, "ec", ec_main },
    	{ FUNC_TYPE_GENERAL, "ecparam", ecparam_main },
    #endif
    #ifndef OPENSSL_NO_RSA
    	{ FUNC_TYPE_GENERAL, "genrsa", genrsa_main },
    	{ FUNC_TYPE_GENERAL, "rsa", rsa_main },
    	{ FUNC_TYPE_GENERAL, "rsautl", rsautl_main },
    #endif
    
    	/* Message Digests. */
    #ifndef OPENSSL_NO_MD4
    	{ FUNC_TYPE_MD, "md4", dgst_main },
    #endif
    #ifndef OPENSSL_NO_MD5
    	{ FUNC_TYPE_MD, "md5", dgst_main },
    #endif
    #ifndef OPENSSL_NO_RIPEMD160
    	{ FUNC_TYPE_MD, "ripemd160", dgst_main },
    #endif
    #ifndef OPENSSL_NO_SHA1
    	{ FUNC_TYPE_MD, "sha1", dgst_main },
    #endif
    #ifndef OPENSSL_NO_SHA224
    	{ FUNC_TYPE_MD, "sha224", dgst_main },
    #endif
    #ifndef OPENSSL_NO_SHA256
    	{ FUNC_TYPE_MD, "sha256", dgst_main },
    #endif
    #ifndef OPENSSL_NO_SHA384
    	{ FUNC_TYPE_MD, "sha384", dgst_main },
    #endif
    #ifndef OPENSSL_NO_SHA512
    	{ FUNC_TYPE_MD, "sha512", dgst_main },
    #endif
    	{ FUNC_TYPE_MD, "sha3-224", dgst_main },
    	{ FUNC_TYPE_MD, "sha3-256", dgst_main },
    	{ FUNC_TYPE_MD, "sha3-384", dgst_main },
    	{ FUNC_TYPE_MD, "sha3-512", dgst_main },
    #ifndef OPENSSL_NO_SM3
    	{ FUNC_TYPE_MD, "sm3", dgst_main },
    	{ FUNC_TYPE_MD, "sm3WithRSAEncryption", dgst_main },
    #endif
    
    	/* Ciphers. */
    	{ FUNC_TYPE_CIPHER, "base64", enc_main },
    #ifndef OPENSSL_NO_AES
    	{ FUNC_TYPE_CIPHER, "aes-128-cbc", enc_main },
    	{ FUNC_TYPE_CIPHER, "aes-128-ecb", enc_main },
    	{ FUNC_TYPE_CIPHER, "aes-192-cbc", enc_main },
    	{ FUNC_TYPE_CIPHER, "aes-192-ecb", enc_main },
    	{ FUNC_TYPE_CIPHER, "aes-256-cbc", enc_main },
    	{ FUNC_TYPE_CIPHER, "aes-256-ecb", enc_main },
    #endif
    #ifndef OPENSSL_NO_BF
    	{ FUNC_TYPE_CIPHER, "bf", enc_main },
    	{ FUNC_TYPE_CIPHER, "bf-cbc", enc_main },
    	{ FUNC_TYPE_CIPHER, "bf-ecb", enc_main },
    	{ FUNC_TYPE_CIPHER, "bf-cfb", enc_main },
    	{ FUNC_TYPE_CIPHER, "bf-ofb", enc_main },
    #endif
    #ifndef OPENSSL_NO_CAMELLIA
    	{ FUNC_TYPE_CIPHER, "camellia-128-cbc", enc_main },
    	{ FUNC_TYPE_CIPHER, "camellia-128-ecb", enc_main },
    	{ FUNC_TYPE_CIPHER, "camellia-192-cbc", enc_main },
    	{ FUNC_TYPE_CIPHER, "camellia-192-ecb", enc_main },
    	{ FUNC_TYPE_CIPHER, "camellia-256-cbc", enc_main },
    	{ FUNC_TYPE_CIPHER, "camellia-256-ecb", enc_main },
    #endif
    #ifndef OPENSSL_NO_CAST
    	{ FUNC_TYPE_CIPHER, "cast", enc_main },
    	{ FUNC_TYPE_CIPHER, "cast5-cbc", enc_main },
    	{ FUNC_TYPE_CIPHER, "cast5-ecb", enc_main },
    	{ FUNC_TYPE_CIPHER, "cast5-cfb", enc_main },
    	{ FUNC_TYPE_CIPHER, "cast5-ofb", enc_main },
    	{ FUNC_TYPE_CIPHER, "cast-cbc", enc_main },
    #endif
    #ifndef OPENSSL_NO_CHACHA
    	{ FUNC_TYPE_CIPHER, "chacha", enc_main },
    #endif
    #ifndef OPENSSL_NO_DES
    	{ FUNC_TYPE_CIPHER, "des", enc_main },
    	{ FUNC_TYPE_CIPHER, "des3", enc_main },
    	{ FUNC_TYPE_CIPHER, "desx", enc_main },
    	{ FUNC_TYPE_CIPHER, "des-ecb", enc_main },
    	{ FUNC_TYPE_CIPHER, "des-ede", enc_main },
    	{ FUNC_TYPE_CIPHER, "des-ede3", enc_main },
    	{ FUNC_TYPE_CIPHER, "des-cbc", enc_main },
    	{ FUNC_TYPE_CIPHER, "des-ede-cbc", enc_main },
    	{ FUNC_TYPE_CIPHER, "des-ede3-cbc", enc_main },
    	{ FUNC_TYPE_CIPHER, "des-cfb", enc_main },
    	{ FUNC_TYPE_CIPHER, "des-ede-cfb", enc_main },
    	{ FUNC_TYPE_CIPHER, "des-ede3-cfb", enc_main },
    	{ FUNC_TYPE_CIPHER, "des-ofb", enc_main },
    	{ FUNC_TYPE_CIPHER, "des-ede-ofb", enc_main },
    	{ FUNC_TYPE_CIPHER, "des-ede3-ofb", enc_main },
    #endif
    #ifndef OPENSSL_NO_IDEA
    	{ FUNC_TYPE_CIPHER, "idea", enc_main },
    	{ FUNC_TYPE_CIPHER, "idea-cbc", enc_main },
    	{ FUNC_TYPE_CIPHER, "idea-ecb", enc_main },
    	{ FUNC_TYPE_CIPHER, "idea-cfb", enc_main },
    	{ FUNC_TYPE_CIPHER, "idea-ofb", enc_main },
    #endif
    #ifndef OPENSSL_NO_RC2
    	{ FUNC_TYPE_CIPHER, "rc2", enc_main },
    	{ FUNC_TYPE_CIPHER, "rc2-cbc", enc_main },
    	{ FUNC_TYPE_CIPHER, "rc2-ecb", enc_main },
    	{ FUNC_TYPE_CIPHER, "rc2-cfb", enc_main },
    	{ FUNC_TYPE_CIPHER, "rc2-ofb", enc_main },
    	{ FUNC_TYPE_CIPHER, "rc2-64-cbc", enc_main },
    	{ FUNC_TYPE_CIPHER, "rc2-40-cbc", enc_main },
    #endif
    #ifndef OPENSSL_NO_RC4
    	{ FUNC_TYPE_CIPHER, "rc4", enc_main },
    	{ FUNC_TYPE_CIPHER, "rc4-40", enc_main },
    #endif
    #ifndef OPENSSL_NO_SM4
    	{ FUNC_TYPE_CIPHER, "sm4", enc_main },
    	{ FUNC_TYPE_CIPHER, "sm4-ecb", enc_main },
    	{ FUNC_TYPE_CIPHER, "sm4-cbc", enc_main },
    	{ FUNC_TYPE_CIPHER, "sm4-ofb", enc_main },
    	{ FUNC_TYPE_CIPHER, "sm4-cfb", enc_main },
    #endif
    	{ 0, NULL, NULL }
    };
    
    static void openssl_startup(void);
    static void openssl_shutdown(void);
    
    /* The LHASH callbacks ("hash" & "cmp") have been replaced by functions with the
     * base prototypes (we cast each variable inside the function to the required
     * type of "FUNCTION*"). This removes the necessity for macro-generated wrapper
     * functions. */
    
    static LHASH_OF(FUNCTION) *prog_init(void);
    static int do_cmd(LHASH_OF(FUNCTION) *prog, int argc, char *argv[]);
    static void print_help(void);
    static void list_pkey(BIO * out);
    static void list_cipher(BIO * out);
    static void list_md(BIO * out);
    char *default_config_file = NULL;
    
    CONF *config = NULL;
    BIO *bio_err = NULL;
    
    static void
    openssl_startup(void)
    {
    	signal(SIGPIPE, SIG_IGN);
    
    	OpenSSL_add_all_algorithms();
    	SSL_library_init();
    	SSL_load_error_strings();
    
    	setup_ui();
    }
    
    static void
    openssl_shutdown(void)
    {
    	CONF_modules_unload(1);
    	destroy_ui();
    	OBJ_cleanup();
    	EVP_cleanup();
    	CRYPTO_cleanup_all_ex_data();
    	ERR_remove_thread_state(NULL);
    	ERR_free_strings();
    }
    
    int
    main(int argc, char **argv)
    {
    	char *to_free = NULL;
    	int i, ret = 0;
    	char *p;
    	LHASH_OF(FUNCTION) * prog = NULL;
    	long errline;
    
    	if (pledge("stdio cpath wpath rpath inet dns proc flock tty", NULL) == -1) {
    		fprintf(stderr, "openssl: pledge: %s\n", strerror(errno));
    		exit(1);
    	}
    
    	bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
    	if (bio_err == NULL) {
    		fprintf(stderr, "openssl: failed to initialise bio_err\n");
    		exit(1);
    	}
    
    	if (BIO_sock_init() != 1) {
    		BIO_printf(bio_err, "BIO_sock_init failed\n");
    		exit(1);
    	}
    
    	openssl_startup();
    
    	/* Lets load up our environment a little */
    	p = getenv("OPENSSL_CONF");
    	if (p == NULL) {
    		p = to_free = make_config_name();
    		if (p == NULL) {
    			BIO_printf(bio_err, "error making config file name\n");
    			goto end;
    		}
    	}
    
    	default_config_file = p;
    
    	config = NCONF_new(NULL);
    	i = NCONF_load(config, p, &errline);
    	if (i == 0) {
    		if (ERR_GET_REASON(ERR_peek_last_error()) ==
    		    CONF_R_NO_SUCH_FILE) {
    			BIO_printf(bio_err,
    			    "WARNING: can't open config file: %s\n", p);
    			ERR_clear_error();
    			NCONF_free(config);
    			config = NULL;
    		} else {
    			ERR_print_errors(bio_err);
    			NCONF_free(config);
    			exit(1);
    		}
    	}
    
    	if (!load_config(bio_err, NULL)) {
    		BIO_printf(bio_err, "failed to load configuration\n");
    		goto end;
    	}
    
    	prog = prog_init();
    
    	/*
    	 * ok, now check that there are not arguments, if there are, run with
    	 * them, shifting the executable name off the front
    	 */
    	argc--;
    	argv++;
    
    	if (argc < 1) {
    		print_help();
    		goto end;
    	}
    
    	ret = do_cmd(prog, argc, argv);
    	if (ret < 0)
    		ret = 0;
    
     end:
    	free(to_free);
    
    	if (config != NULL) {
    		NCONF_free(config);
    		config = NULL;
    	}
    	if (prog != NULL)
    		lh_FUNCTION_free(prog);
    
    	openssl_shutdown();
    
    	if (bio_err != NULL) {
    		BIO_free(bio_err);
    		bio_err = NULL;
    	}
    	return (ret);
    }
    
    #define LIST_STANDARD_COMMANDS "list-standard-commands"
    #define LIST_MESSAGE_DIGEST_COMMANDS "list-message-digest-commands"
    #define LIST_MESSAGE_DIGEST_ALGORITHMS "list-message-digest-algorithms"
    #define LIST_CIPHER_COMMANDS "list-cipher-commands"
    #define LIST_CIPHER_ALGORITHMS "list-cipher-algorithms"
    #define LIST_PUBLIC_KEY_ALGORITHMS "list-public-key-algorithms"
    
    
    static int
    do_cmd(LHASH_OF(FUNCTION) * prog, int argc, char *argv[])
    {
    	FUNCTION f, *fp;
    	int ret = 1;
    
    	if (argc <= 0 || argv[0] == NULL)
    		return 0;
    
    	f.name = argv[0];
    	fp = lh_FUNCTION_retrieve(prog, &f);
    	if (fp == NULL) {
    		if (EVP_get_digestbyname(argv[0])) {
    			f.type = FUNC_TYPE_MD;
    			f.func = dgst_main;
    			fp = &f;
    		} else if (EVP_get_cipherbyname(argv[0])) {
    			f.type = FUNC_TYPE_CIPHER;
    			f.func = enc_main;
    			fp = &f;
    		}
    	}
    
    	if (fp != NULL)
    		return fp->func(argc, argv);
    
    	if (strcmp(argv[0], "help") == 0) {
    		print_help();
    		return 0;
    	}
    
    	if ((strncmp(argv[0], "no-", 3)) == 0) {
    		BIO *bio_stdout = BIO_new_fp(stdout, BIO_NOCLOSE);
    		f.name = argv[0] + 3;
    		ret = (lh_FUNCTION_retrieve(prog, &f) != NULL);
    		if (!ret)
    			BIO_printf(bio_stdout, "%s\n", argv[0]);
    		else
    			BIO_printf(bio_stdout, "%s\n", argv[0] + 3);
    		BIO_free_all(bio_stdout);
    		return ret;
    	}
    
    	if ((strcmp(argv[0], LIST_STANDARD_COMMANDS) == 0) ||
    	    (strcmp(argv[0], LIST_MESSAGE_DIGEST_COMMANDS) == 0) ||
    	    (strcmp(argv[0], LIST_MESSAGE_DIGEST_ALGORITHMS) == 0) ||
    	    (strcmp(argv[0], LIST_CIPHER_COMMANDS) == 0) ||
    	    (strcmp(argv[0], LIST_CIPHER_ALGORITHMS) == 0) ||
    	    (strcmp(argv[0], LIST_PUBLIC_KEY_ALGORITHMS) == 0)) {
    		int list_type;
    		BIO *bio_stdout;
    
    		if (strcmp(argv[0], LIST_STANDARD_COMMANDS) == 0)
    			list_type = FUNC_TYPE_GENERAL;
    		else if (strcmp(argv[0], LIST_MESSAGE_DIGEST_COMMANDS) == 0)
    			list_type = FUNC_TYPE_MD;
    		else if (strcmp(argv[0], LIST_MESSAGE_DIGEST_ALGORITHMS) == 0)
    			list_type = FUNC_TYPE_MD_ALG;
    		else if (strcmp(argv[0], LIST_PUBLIC_KEY_ALGORITHMS) == 0)
    			list_type = FUNC_TYPE_PKEY;
    		else if (strcmp(argv[0], LIST_CIPHER_ALGORITHMS) == 0)
    			list_type = FUNC_TYPE_CIPHER_ALG;
    		else		/* strcmp(argv[0],LIST_CIPHER_COMMANDS) == 0 */
    			list_type = FUNC_TYPE_CIPHER;
    		bio_stdout = BIO_new_fp(stdout, BIO_NOCLOSE);
    
    		if (list_type == FUNC_TYPE_PKEY)
    			list_pkey(bio_stdout);
    		if (list_type == FUNC_TYPE_MD_ALG)
    			list_md(bio_stdout);
    		if (list_type == FUNC_TYPE_CIPHER_ALG)
    			list_cipher(bio_stdout);
    		else {
    			for (fp = functions; fp->name != NULL; fp++)
    				if (fp->type == list_type)
    					BIO_printf(bio_stdout, "%s\n",
    					    fp->name);
    		}
    		BIO_free_all(bio_stdout);
    		return 0;
    	}
    
    	BIO_printf(bio_err,
    	    "openssl:Error: '%s' is an invalid command.\n",
    	    argv[0]);
    	print_help();
    
    	return 1;
    }
    
    static void
    print_help(void)
    {
    	FUNCTION *fp;
    	int i = 0;
    	int tp = 0;
    	int nl;
    
    	BIO_printf(bio_err, "\nStandard commands");
    	for (fp = functions; fp->name != NULL; fp++) {
    		nl = 0;
    #ifdef OPENSSL_NO_CAMELLIA
    		if (((i++) % 5) == 0)
    #else
    		if (((i++) % 4) == 0)
    #endif
    		{
    			BIO_printf(bio_err, "\n");
    			nl = 1;
    		}
    		if (fp->type != tp) {
    			tp = fp->type;
    			if (!nl)
    				BIO_printf(bio_err, "\n");
    			if (tp == FUNC_TYPE_MD) {
    				i = 1;
    				BIO_printf(bio_err,
    				    "\nMessage Digest commands (see the `dgst' command for more details)\n");
    			} else if (tp == FUNC_TYPE_CIPHER) {
    				i = 1;
    				BIO_printf(bio_err, "\nCipher commands (see the `enc' command for more details)\n");
    			}
    		}
    #ifdef OPENSSL_NO_CAMELLIA
    		BIO_printf(bio_err, "%-15s", fp->name);
    #else
    		BIO_printf(bio_err, "%-18s", fp->name);
    #endif
    	}
    
    	BIO_printf(bio_err, "\n\n");
    }
    
    static int
    SortFnByName(const void *_f1, const void *_f2)
    {
    	const FUNCTION *f1 = _f1;
    	const FUNCTION *f2 = _f2;
    
    	if (f1->type != f2->type)
    		return f1->type - f2->type;
    	return strcmp(f1->name, f2->name);
    }
    
    static void
    list_pkey(BIO * out)
    {
    	int i;
    
    	for (i = 0; i < EVP_PKEY_asn1_get_count(); i++) {
    		const EVP_PKEY_ASN1_METHOD *ameth;
    		int pkey_id, pkey_base_id, pkey_flags;
    		const char *pinfo, *pem_str;
    		ameth = EVP_PKEY_asn1_get0(i);
    		EVP_PKEY_asn1_get0_info(&pkey_id, &pkey_base_id, &pkey_flags,
    		    &pinfo, &pem_str, ameth);
    		if (pkey_flags & ASN1_PKEY_ALIAS) {
    			BIO_printf(out, "Name: %s\n",
    			    OBJ_nid2ln(pkey_id));
    			BIO_printf(out, "\tType: Alias to %s\n",
    			    OBJ_nid2ln(pkey_base_id));
    		} else {
    			BIO_printf(out, "Name: %s\n", pinfo);
    			BIO_printf(out, "\tType: %s Algorithm\n",
    			    pkey_flags & ASN1_PKEY_DYNAMIC ?
    			    "External" : "Builtin");
    			BIO_printf(out, "\tOID: %s\n", OBJ_nid2ln(pkey_id));
    			if (pem_str == NULL)
    				pem_str = "(none)";
    			BIO_printf(out, "\tPEM string: %s\n", pem_str);
    		}
    
    	}
    }
    
    static void
    list_cipher_fn(const EVP_CIPHER * c, const char *from, const char *to,
        void *arg)
    {
    	if (c)
    		BIO_printf(arg, "%s\n", EVP_CIPHER_name(c));
    	else {
    		if (!from)
    			from = "<undefined>";
    		if (!to)
    			to = "<undefined>";
    		BIO_printf(arg, "%s => %s\n", from, to);
    	}
    }
    
    static void
    list_cipher(BIO * out)
    {
    	EVP_CIPHER_do_all_sorted(list_cipher_fn, out);
    }
    
    static void
    list_md_fn(const EVP_MD * m, const char *from, const char *to, void *arg)
    {
    	if (m)
    		BIO_printf(arg, "%s\n", EVP_MD_name(m));
    	else {
    		if (!from)
    			from = "<undefined>";
    		if (!to)
    			to = "<undefined>";
    		BIO_printf(arg, "%s => %s\n", from, to);
    	}
    }
    
    static void
    list_md(BIO * out)
    {
    	EVP_MD_do_all_sorted(list_md_fn, out);
    }
    
    static int
    function_cmp(const FUNCTION * a, const FUNCTION * b)
    {
    	return strncmp(a->name, b->name, 8);
    }
    
    static IMPLEMENT_LHASH_COMP_FN(function, FUNCTION)
    
    static unsigned long
    function_hash(const FUNCTION * a)
    {
    	return lh_strhash(a->name);
    }
    
    static IMPLEMENT_LHASH_HASH_FN(function, FUNCTION)
    
    static LHASH_OF(FUNCTION) *
    prog_init(void)
    {
    	LHASH_OF(FUNCTION) * ret;
    	FUNCTION *f;
    	size_t i;
    
    	/* Purely so it looks nice when the user hits ? */
    	for (i = 0, f = functions; f->name != NULL; ++f, ++i)
    		;
    	qsort(functions, i, sizeof *functions, SortFnByName);
    
    	if ((ret = lh_FUNCTION_new()) == NULL)
    		return (NULL);
    
    	for (f = functions; f->name != NULL; f++)
    		(void) lh_FUNCTION_insert(ret, f);
    	return (ret);
    }