RT3548: Remove unsupported platforms

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

/* apps/openssl.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */
/* ====================================================================
 * 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 <stdio.h>
#include <string.h>
#include <stdlib.h>
#define OPENSSL_C /* tells apps.h to use complete apps_startup() */
#include "apps.h"
#include <openssl/bio.h>
#include <openssl/crypto.h>
#include <openssl/rand.h>
#include <openssl/lhash.h>
#include <openssl/conf.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
#include <openssl/ssl.h>
#ifndef OPENSSL_NO_ENGINE
#include <openssl/engine.h>
#endif
#define USE_SOCKETS /* needed for the _O_BINARY defs in the MS world */
#include "progs.h"
#include "s_apps.h"
#include <openssl/err.h>
#ifdef OPENSSL_FIPS
#include <openssl/fips.h>
#endif

/* 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 list_pkey(BIO *out);
static void list_cipher(BIO *out);
static void list_md(BIO *out);
char *default_config_file=NULL;

/* Make sure there is only one when MONOLITH is defined */
#ifdef MONOLITH
CONF *config=NULL;
BIO *bio_err=NULL;
#endif


static void lock_dbg_cb(int mode, int type, const char *file, int line)
        {
        static int modes[CRYPTO_NUM_LOCKS]; /* = {0, 0, ... } */
        const char *errstr = NULL;
        int rw;
        
        rw = mode & (CRYPTO_READ|CRYPTO_WRITE);
        if (!((rw == CRYPTO_READ) || (rw == CRYPTO_WRITE)))
                {
                errstr = "invalid mode";
                goto err;
                }

        if (type < 0 || type >= CRYPTO_NUM_LOCKS)
                {
                errstr = "type out of bounds";
                goto err;
                }

        if (mode & CRYPTO_LOCK)
                {
                if (modes[type])
                        {
                        errstr = "already locked";
                        /* must not happen in a single-threaded program
                         * (would deadlock) */
                        goto err;
                        }

                modes[type] = rw;
                }
        else if (mode & CRYPTO_UNLOCK)
                {
                if (!modes[type])
                        {
                        errstr = "not locked";
                        goto err;
                        }
                
                if (modes[type] != rw)
                        {
                        errstr = (rw == CRYPTO_READ) ?
                                "CRYPTO_r_unlock on write lock" :
                                "CRYPTO_w_unlock on read lock";
                        }

                modes[type] = 0;
                }
        else
                {
                errstr = "invalid mode";
                goto err;
                }

 err:
        if (errstr)
                {
                /* we cannot use bio_err here */
                fprintf(stderr, "openssl (lock_dbg_cb): %s (mode=%d, type=%d) at %s:%d\n",
                        errstr, mode, type, file, line);
                }
        }

#if defined( OPENSSL_SYS_VMS) && (__INITIAL_POINTER_SIZE == 64)
# define ARGV _Argv
#else
# define ARGV Argv
#endif

int main(int Argc, char *ARGV[])
        {
        ARGS arg;
#define PROG_NAME_SIZE  39
        char pname[PROG_NAME_SIZE+1];
        FUNCTION f,*fp;
        MS_STATIC const char *prompt;
        MS_STATIC char buf[1024];
        char *to_free=NULL;
        int n,i,ret=0;
        int argc;
        char **argv,*p;
        LHASH_OF(FUNCTION) *prog=NULL;
        long errline;

#if defined( OPENSSL_SYS_VMS) && (__INITIAL_POINTER_SIZE == 64)
        /*- 
         * 2011-03-22 SMS.
         * If we have 32-bit pointers everywhere, then we're safe, and
         * we bypass this mess, as on non-VMS systems.  (See ARGV,
         * above.)
         * Problem 1: Compaq/HP C before V7.3 always used 32-bit
         * pointers for argv[].
         * Fix 1: For a 32-bit argv[], when we're using 64-bit pointers
         * everywhere else, we always allocate and use a 64-bit
         * duplicate of argv[].
         * Problem 2: Compaq/HP C V7.3 (Alpha, IA64) before ECO1 failed
         * to NULL-terminate a 64-bit argv[].  (As this was written, the
         * compiler ECO was available only on IA64.)
         * Fix 2: Unless advised not to (VMS_TRUST_ARGV), we test a
         * 64-bit argv[argc] for NULL, and, if necessary, use a
         * (properly) NULL-terminated (64-bit) duplicate of argv[].
         * The same code is used in either case to duplicate argv[].
         * Some of these decisions could be handled in preprocessing,
         * but the code tends to get even uglier, and the penalty for
         * deciding at compile- or run-time is tiny.
         */
        char **Argv = NULL;
        int free_Argv = 0;

        if ((sizeof( _Argv) < 8)        /* 32-bit argv[]. */
# if !defined( VMS_TRUST_ARGV)
         || (_Argv[ Argc] != NULL)      /* Untrusted argv[argc] not NULL. */
# endif
                )
                {
                int i;
                Argv = OPENSSL_malloc( (Argc+ 1)* sizeof( char *));
                if (Argv == NULL)
                        { ret = -1; goto end; }
                for(i = 0; i < Argc; i++)
                        Argv[i] = _Argv[i];
                Argv[ Argc] = NULL;     /* Certain NULL termination. */
                free_Argv = 1;
                }
        else
                {
                /* Use the known-good 32-bit argv[] (which needs the
                 * type cast to satisfy the compiler), or the trusted or
                 * tested-good 64-bit argv[] as-is. */
                Argv = (char **)_Argv;
                }
#endif /* defined( OPENSSL_SYS_VMS) && (__INITIAL_POINTER_SIZE == 64) */

        arg.data=NULL;
        arg.count=0;

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

        if (getenv("OPENSSL_DEBUG_MEMORY") != NULL) /* if not defined, use compiled-in library defaults */
                {
                if (!(0 == strcmp(getenv("OPENSSL_DEBUG_MEMORY"), "off")))
                        {
                        CRYPTO_malloc_debug_init();
                        CRYPTO_set_mem_debug_options(V_CRYPTO_MDEBUG_ALL);
                        }
                else
                        {
                        /* OPENSSL_DEBUG_MEMORY=off */
                        CRYPTO_set_mem_debug_functions(0, 0, 0, 0, 0);
                        }
                }
        CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);

#if 0
        if (getenv("OPENSSL_DEBUG_LOCKING") != NULL)
#endif
                {
                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_new_fp(stderr,BIO_NOCLOSE));
                        EXIT(1);
                }
#else
                fprintf(stderr, "FIPS mode not supported.\n");
                EXIT(1);
#endif
                }

        apps_startup();

        /* Lets load up our environment a little */
        p=getenv("OPENSSL_CONF");
        if (p == NULL)
                p=getenv("SSLEAY_CONF");
        if (p == NULL)
                p=to_free=make_config_name();

        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);
                        }
                }

        prog=prog_init();

        /* first check the program name */
        program_name(Argv[0],pname,sizeof pname);

        f.name=pname;
        fp=lh_FUNCTION_retrieve(prog,&f);
        if (fp != NULL)
                {
                Argv[0]=pname;
                ret=fp->func(Argc,Argv);
                goto end;
                }

        /* ok, now check that there are not arguments, if there are,
         * run with them, shifting the ssleay off the front */
        if (Argc != 1)
                {
                Argc--;
                Argv++;
                ret=do_cmd(prog,Argc,Argv);
                if (ret < 0) ret=0;
                goto end;
                }

        /* ok, lets enter the old 'OpenSSL>' mode */
        
        for (;;)
                {
                ret=0;
                p=buf;
                n=sizeof buf;
                i=0;
                for (;;)
                        {
                        p[0]='\0';
                        if (i++)
                                prompt=">";
                        else    prompt="OpenSSL> ";
                        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;
                        }
                if (!chopup_args(&arg,buf,&argc,&argv)) break;

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


        if (bio_err != NULL)
                {
                BIO_free(bio_err);
                bio_err=NULL;
                }
#if defined( OPENSSL_SYS_VMS) && (__INITIAL_POINTER_SIZE == 64)
        /* Free any duplicate Argv[] storage. */
        if (free_Argv)
                {
                OPENSSL_free(Argv);
                }
#endif
        apps_shutdown();
        CRYPTO_mem_leaks(bio_err);

        OPENSSL_EXIT(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 i,ret=1,tp,nl;

        if ((argc <= 0) || (argv[0] == NULL))
                { ret=0; goto end; }
        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)
                {
                ret=fp->func(argc,argv);
                }
        else if ((strncmp(argv[0],"no-",3)) == 0)
                {
                BIO *bio_stdout = BIO_new_fp(stdout,BIO_NOCLOSE);
#ifdef OPENSSL_SYS_VMS
                {
                BIO *tmpbio = BIO_new(BIO_f_linebuffer());
                bio_stdout = BIO_push(tmpbio, bio_stdout);
                }
#endif
                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);
                goto end;
                }
        else if ((strcmp(argv[0],"quit") == 0) ||
                (strcmp(argv[0],"q") == 0) ||
                (strcmp(argv[0],"exit") == 0) ||
                (strcmp(argv[0],"bye") == 0))
                {
                ret= -1;
                goto end;
                }
        else 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);
#ifdef OPENSSL_SYS_VMS
                {
                BIO *tmpbio = BIO_new(BIO_f_linebuffer());
                bio_stdout = BIO_push(tmpbio, bio_stdout);
                }
#endif

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

                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);
                ret=0;
                goto end;
                }
        else
                {
                BIO_printf(bio_err,"openssl:Error: '%s' is an invalid command.\n",
                        argv[0]);
                BIO_printf(bio_err, "\nStandard commands");
                i=0;
                tp=0;
                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");
                ret=0;
                }
end:
        return(ret);
        }

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);
        }