1 /* apps/s_client.c */

     2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)

     3  * All rights reserved.

     4  *

     5  * This package is an SSL implementation written

     6  * by Eric Young (eay@cryptsoft.com).

     7  * The implementation was written so as to conform with Netscapes SSL.

     8  * 

     9  * This library is free for commercial and non-commercial use as long as

    10  * the following conditions are aheared to.  The following conditions

    11  * apply to all code found in this distribution, be it the RC4, RSA,

    12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation

    13  * included with this distribution is covered by the same copyright terms

    14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).

    15  * 

    16  * Copyright remains Eric Young's, and as such any Copyright notices in

    17  * the code are not to be removed.

    18  * If this package is used in a product, Eric Young should be given attribution

    19  * as the author of the parts of the library used.

    20  * This can be in the form of a textual message at program startup or

    21  * in documentation (online or textual) provided with the package.

    22  * 

    23  * Redistribution and use in source and binary forms, with or without

    24  * modification, are permitted provided that the following conditions

    25  * are met:

    26  * 1. Redistributions of source code must retain the copyright

    27  *    notice, this list of conditions and the following disclaimer.

    28  * 2. Redistributions in binary form must reproduce the above copyright

    29  *    notice, this list of conditions and the following disclaimer in the

    30  *    documentation and/or other materials provided with the distribution.

    31  * 3. All advertising materials mentioning features or use of this software

    32  *    must display the following acknowledgement:

    33  *    "This product includes cryptographic software written by

    34  *     Eric Young (eay@cryptsoft.com)"

    35  *    The word 'cryptographic' can be left out if the rouines from the library

    36  *    being used are not cryptographic related :-).

    37  * 4. If you include any Windows specific code (or a derivative thereof) from 

    38  *    the apps directory (application code) you must include an acknowledgement:

    39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"

    40  * 

    41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND

    42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

    44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE

    45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

    46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

    47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

    48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

    49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

    50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

    51  * SUCH DAMAGE.

    52  * 

    53  * The licence and distribution terms for any publically available version or

    54  * derivative of this code cannot be changed.  i.e. this code cannot simply be

    55  * copied and put under another distribution licence

    56  * [including the GNU Public Licence.]

    57  */

    58 /* ====================================================================

    59  * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.

    60  *

    61  * Redistribution and use in source and binary forms, with or without

    62  * modification, are permitted provided that the following conditions

    63  * are met:

    64  *

    65  * 1. Redistributions of source code must retain the above copyright

    66  *    notice, this list of conditions and the following disclaimer. 

    67  *

    68  * 2. Redistributions in binary form must reproduce the above copyright

    69  *    notice, this list of conditions and the following disclaimer in

    70  *    the documentation and/or other materials provided with the

    71  *    distribution.

    72  *

    73  * 3. All advertising materials mentioning features or use of this

    74  *    software must display the following acknowledgment:

    75  *    "This product includes software developed by the OpenSSL Project

    76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"

    77  *

    78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to

    79  *    endorse or promote products derived from this software without

    80  *    prior written permission. For written permission, please contact

    81  *    openssl-core@openssl.org.

    82  *

    83  * 5. Products derived from this software may not be called "OpenSSL"

    84  *    nor may "OpenSSL" appear in their names without prior written

    85  *    permission of the OpenSSL Project.

    86  *

    87  * 6. Redistributions of any form whatsoever must retain the following

    88  *    acknowledgment:

    89  *    "This product includes software developed by the OpenSSL Project

    90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"

    91  *

    92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY

    93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

    95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR

    96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

    97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

    98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

    99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

   100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

   101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

   102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED

   103  * OF THE POSSIBILITY OF SUCH DAMAGE.

   104  * ====================================================================

   105  *

   106  * This product includes cryptographic software written by Eric Young

   107  * (eay@cryptsoft.com).  This product includes software written by Tim

   108  * Hudson (tjh@cryptsoft.com).

   109  *

   110  */

   111 

   112 #include <assert.h>

   113 #include <stdio.h>

   114 #include <stdlib.h>

   115 #include <string.h>

   116 #include <sys/select.h>

   117 #include <openssl/e_os2.h>

   118 #ifdef OPENSSL_NO_STDIO

   119 #define APPS_WIN16

   120 #endif

   121 

   122 /* With IPv6, it looks like Digital has mixed up the proper order of

   123    recursive header file inclusion, resulting in the compiler complaining

   124    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which

   125    is needed to have fileno() declared correctly...  So let's define u_int */

   126 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)

   127 #define __U_INT

   128 typedef unsigned int u_int;

   129 #endif

   130 

   131 #define USE_SOCKETS

   132 #include "apps.h"

   133 #include <openssl/x509.h>

   134 #include <openssl/ssl.h>

   135 #include <openssl/err.h>

   136 #include <openssl/pem.h>

   137 #include <openssl/rand.h>

   138 #include "s_apps.h"

   139 #include "timeouts.h"

   140 

   141 #ifdef OPENSSL_SYS_WINCE

   142 /* Windows CE incorrectly defines fileno as returning void*, so to avoid problems below... */

   143 #ifdef fileno

   144 #undef fileno

   145 #endif

   146 #define fileno(a) (int)_fileno(a)

   147 #endif

   148 

   149 

   150 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)

   151 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */

   152 #undef FIONBIO

   153 #endif

   154 

   155 #undef PROG

   156 #define PROG	s_client_main

   157 

   158 /*#define SSL_HOST_NAME	"www.netscape.com" */

   159 /*#define SSL_HOST_NAME	"193.118.187.102" */

   160 #define SSL_HOST_NAME	"localhost"

   161 

   162 /*#define TEST_CERT "client.pem" */ /* no default cert. */

   163 

   164 #undef BUFSIZZ

   165 #define BUFSIZZ 1024*8

   166 

   167 extern int verify_depth;

   168 extern int verify_error;

   169 

   170 #ifdef FIONBIO

   171 static int c_nbio=0;

   172 #endif

   173 static int c_Pause=0;

   174 static int c_debug=0;

   175 static int c_msg=0;

   176 static int c_showcerts=0;

   177 

   178 static void sc_usage(void);

   179 static void print_stuff(BIO *berr,SSL *con,int full);

   180 static BIO *bio_c_out=NULL;

   181 static int c_quiet=0;

   182 static int c_ign_eof=0;

   183 

   184 

   185 static void sc_usage(void)

   186 	{

   187 	BIO_printf(bio_err,"usage: s_client args\n");

   188 	BIO_printf(bio_err,"\n");

   189 	BIO_printf(bio_err," -host host     - use -connect instead\n");

   190 	BIO_printf(bio_err," -port port     - use -connect instead\n");

   191 	BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);

   192 

   193 	BIO_printf(bio_err," -verify depth - turn on peer certificate verification\n");

   194 	BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");

   195 	BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");

   196 	BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");

   197 	BIO_printf(bio_err,"                 not specified but cert file is.\n");

   198 	BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");

   199 	BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");

   200 	BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");

   201 	BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");

   202 	BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");

   203 	BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");

   204 	BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");

   205 	BIO_printf(bio_err," -debug        - extra output\n");

   206 #ifdef WATT32

   207 	BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");

   208 #endif

   209 	BIO_printf(bio_err," -msg          - Show protocol messages\n");

   210 	BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");

   211 	BIO_printf(bio_err," -state        - print the 'ssl' states\n");

   212 #ifdef FIONBIO

   213 	BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");

   214 #endif

   215 	BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");

   216 	BIO_printf(bio_err," -quiet        - no s_client output\n");

   217 	BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");

   218 	BIO_printf(bio_err," -ssl2         - just use SSLv2\n");

   219 	BIO_printf(bio_err," -ssl3         - just use SSLv3\n");

   220 	BIO_printf(bio_err," -tls1         - just use TLSv1\n");

   221 	BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");    

   222 	BIO_printf(bio_err," -mtu          - set the MTU\n");

   223 	BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");

   224 	BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");

   225 	BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");

   226 	BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");

   227 	BIO_printf(bio_err,"                 command to see what is available\n");

   228 	BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");

   229 	BIO_printf(bio_err,"                 for those protocols that support it, where\n");

   230 	BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");

   231 	BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", and \"ftp\" are supported.\n");

   232 #ifndef OPENSSL_NO_ENGINE

   233 	BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");

   234 #endif

   235 	BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);

   236 	BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");

   237 	BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");

   238 	}

   239 

   240 enum

   241 {

   242 	PROTO_OFF	= 0,

   243 	PROTO_SMTP,

   244 	PROTO_POP3,

   245 	PROTO_IMAP,

   246 	PROTO_FTP

   247 };

   248 

   249 int MAIN(int, char **);

   250 

   251 int MAIN(int argc, char **argv)

   252 	{

   253 	int off=0;

   254 	SSL *con=NULL,*con2=NULL;

   255 	X509_STORE *store = NULL;

   256 	int s,k,width,state=0;

   257 	char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;

   258 	int cbuf_len,cbuf_off;

   259 	int sbuf_len,sbuf_off;

   260 	fd_set readfds,writefds;

   261 	short port=PORT;

   262 	int full_log=1;

   263 	char *host=SSL_HOST_NAME;

   264 	char *cert_file=NULL,*key_file=NULL;

   265 	int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;

   266 	char *passarg = NULL, *pass = NULL;

   267 	X509 *cert = NULL;

   268 	EVP_PKEY *key = NULL;

   269 	char *CApath=NULL,*CAfile=NULL,*cipher=NULL;

   270 	int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;

   271 	int crlf=0;

   272 	int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;

   273 	SSL_CTX *ctx=NULL;

   274 	int ret=1,in_init=1,i,nbio_test=0;

   275 	int starttls_proto = PROTO_OFF;

   276 	int prexit = 0, vflags = 0;

   277 	SSL_METHOD *meth=NULL;

   278 #ifdef sock_type

   279 #undef sock_type

   280 #endif

   281 	int sock_type=SOCK_STREAM;

   282 	BIO *sbio;

   283 	char *inrand=NULL;

   284 	int mbuf_len=0;

   285 #ifndef OPENSSL_NO_ENGINE

   286 	char *engine_id=NULL;

   287 	ENGINE *e=NULL;

   288 #endif

   289 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)

   290 	struct timeval tv;

   291 #endif

   292 

   293 	char *sess_in = NULL;

   294 	char *sess_out = NULL;

   295 	struct sockaddr peer;

   296 	int peerlen = sizeof(peer);

   297 	int enable_timeouts = 0 ;

   298 	long mtu = 0;

   299 

   300 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)

   301 	meth=SSLv23_client_method();

   302 #elif !defined(OPENSSL_NO_SSL3)

   303 	meth=SSLv3_client_method();

   304 #elif !defined(OPENSSL_NO_SSL2)

   305 	meth=SSLv2_client_method();

   306 #endif

   307 

   308 	apps_startup();

   309 	c_Pause=0;

   310 	c_quiet=0;

   311 	c_ign_eof=0;

   312 	c_debug=0;

   313 	c_msg=0;

   314 	c_showcerts=0;

   315 

   316 	if (bio_err == NULL)

   317 		bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);

   318 

   319 	if (!load_config(bio_err, NULL))

   320 		goto end;

   321 

   322 	if (	((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||

   323 		((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||

   324 		((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))

   325 		{

   326 		BIO_printf(bio_err,"out of memory\n");

   327 		goto end;

   328 		}

   329 

   330 	verify_depth=0;

   331 	verify_error=X509_V_OK;

   332 #ifdef FIONBIO

   333 	c_nbio=0;

   334 #endif

   335 

   336 	argc--;

   337 	argv++;

   338 	while (argc >= 1)

   339 		{

   340 		if	(strcmp(*argv,"-host") == 0)

   341 			{

   342 			if (--argc < 1) goto bad;

   343 			host= *(++argv);

   344 			}

   345 		else if	(strcmp(*argv,"-port") == 0)

   346 			{

   347 			if (--argc < 1) goto bad;

   348 			port=atoi(*(++argv));

   349 			if (port == 0) goto bad;

   350 			}

   351 		else if (strcmp(*argv,"-connect") == 0)

   352 			{

   353 			if (--argc < 1) goto bad;

   354 			if (!extract_host_port(*(++argv),&host,NULL,&port))

   355 				goto bad;

   356 			}

   357 		else if	(strcmp(*argv,"-verify") == 0)

   358 			{

   359 			verify=SSL_VERIFY_PEER;

   360 			if (--argc < 1) goto bad;

   361 			verify_depth=atoi(*(++argv));

   362 			BIO_printf(bio_err,"verify depth is %d\n",verify_depth);

   363 			}

   364 		else if	(strcmp(*argv,"-cert") == 0)

   365 			{

   366 			if (--argc < 1) goto bad;

   367 			cert_file= *(++argv);

   368 			}

   369 		else if	(strcmp(*argv,"-sess_out") == 0)

   370 			{

   371 			if (--argc < 1) goto bad;

   372 			sess_out = *(++argv);

   373 			}

   374 		else if	(strcmp(*argv,"-sess_in") == 0)

   375 			{

   376 			if (--argc < 1) goto bad;

   377 			sess_in = *(++argv);

   378 			}

   379 		else if	(strcmp(*argv,"-certform") == 0)

   380 			{

   381 			if (--argc < 1) goto bad;

   382 			cert_format = str2fmt(*(++argv));

   383 			}

   384 		else if	(strcmp(*argv,"-crl_check") == 0)

   385 			vflags |= X509_V_FLAG_CRL_CHECK;

   386 		else if	(strcmp(*argv,"-crl_check_all") == 0)

   387 			vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;

   388 		else if	(strcmp(*argv,"-prexit") == 0)

   389 			prexit=1;

   390 		else if	(strcmp(*argv,"-crlf") == 0)

   391 			crlf=1;

   392 		else if	(strcmp(*argv,"-quiet") == 0)

   393 			{

   394 			c_quiet=1;

   395 			c_ign_eof=1;

   396 			}

   397 		else if	(strcmp(*argv,"-ign_eof") == 0)

   398 			c_ign_eof=1;

   399 		else if	(strcmp(*argv,"-pause") == 0)

   400 			c_Pause=1;

   401 		else if	(strcmp(*argv,"-debug") == 0)

   402 			c_debug=1;

   403 #ifdef WATT32

   404 		else if (strcmp(*argv,"-wdebug") == 0)

   405 			dbug_init();

   406 #endif

   407 		else if	(strcmp(*argv,"-msg") == 0)

   408 			c_msg=1;

   409 		else if	(strcmp(*argv,"-showcerts") == 0)

   410 			c_showcerts=1;

   411 		else if	(strcmp(*argv,"-nbio_test") == 0)

   412 			nbio_test=1;

   413 		else if	(strcmp(*argv,"-state") == 0)

   414 			state=1;

   415 #ifndef OPENSSL_NO_SSL2

   416 		else if	(strcmp(*argv,"-ssl2") == 0)

   417 			meth=SSLv2_client_method();

   418 #endif

   419 #ifndef OPENSSL_NO_SSL3

   420 		else if	(strcmp(*argv,"-ssl3") == 0)

   421 			meth=SSLv3_client_method();

   422 #endif

   423 #ifndef OPENSSL_NO_TLS1

   424 		else if	(strcmp(*argv,"-tls1") == 0)

   425 			meth=TLSv1_client_method();

   426 #endif

   427 #ifndef OPENSSL_NO_DTLS1

   428 		else if	(strcmp(*argv,"-dtls1") == 0)

   429 			{

   430 			meth=DTLSv1_client_method();

   431 			sock_type=SOCK_DGRAM;

   432 			}

   433 		else if (strcmp(*argv,"-timeout") == 0)

   434 			enable_timeouts=1;

   435 		else if (strcmp(*argv,"-mtu") == 0)

   436 			{

   437 			if (--argc < 1) goto bad;

   438 			mtu = atol(*(++argv));

   439 			}

   440 #endif

   441 		else if (strcmp(*argv,"-bugs") == 0)

   442 			bugs=1;

   443 		else if	(strcmp(*argv,"-keyform") == 0)

   444 			{

   445 			if (--argc < 1) goto bad;

   446 			key_format = str2fmt(*(++argv));

   447 			}

   448 		else if	(strcmp(*argv,"-pass") == 0)

   449 			{

   450 			if (--argc < 1) goto bad;

   451 			passarg = *(++argv);

   452 			}

   453 		else if	(strcmp(*argv,"-key") == 0)

   454 			{

   455 			if (--argc < 1) goto bad;

   456 			key_file= *(++argv);

   457 			}

   458 		else if	(strcmp(*argv,"-reconnect") == 0)

   459 			{

   460 			reconnect=5;

   461 			}

   462 		else if	(strcmp(*argv,"-CApath") == 0)

   463 			{

   464 			if (--argc < 1) goto bad;

   465 			CApath= *(++argv);

   466 			}

   467 		else if	(strcmp(*argv,"-CAfile") == 0)

   468 			{

   469 			if (--argc < 1) goto bad;

   470 			CAfile= *(++argv);

   471 			}

   472 		else if (strcmp(*argv,"-no_tls1") == 0)

   473 			off|=SSL_OP_NO_TLSv1;

   474 		else if (strcmp(*argv,"-no_ssl3") == 0)

   475 			off|=SSL_OP_NO_SSLv3;

   476 		else if (strcmp(*argv,"-no_ssl2") == 0)

   477 			off|=SSL_OP_NO_SSLv2;

   478 		else if (strcmp(*argv,"-serverpref") == 0)

   479 			off|=SSL_OP_CIPHER_SERVER_PREFERENCE;

   480 		else if	(strcmp(*argv,"-cipher") == 0)

   481 			{

   482 			if (--argc < 1) goto bad;

   483 			cipher= *(++argv);

   484 			}

   485 #ifdef FIONBIO

   486 		else if (strcmp(*argv,"-nbio") == 0)

   487 			{ c_nbio=1; }

   488 #endif

   489 		else if	(strcmp(*argv,"-starttls") == 0)

   490 			{

   491 			if (--argc < 1) goto bad;

   492 			++argv;

   493 			if (strcmp(*argv,"smtp") == 0)

   494 				starttls_proto = PROTO_SMTP;

   495 			else if (strcmp(*argv,"pop3") == 0)

   496 				starttls_proto = PROTO_POP3;

   497 			else if (strcmp(*argv,"imap") == 0)

   498 				starttls_proto = PROTO_IMAP;

   499 			else if (strcmp(*argv,"ftp") == 0)

   500 				starttls_proto = PROTO_FTP;

   501 			else

   502 				goto bad;

   503 			}

   504 #ifndef OPENSSL_NO_ENGINE

   505 		else if	(strcmp(*argv,"-engine") == 0)

   506 			{

   507 			if (--argc < 1) goto bad;

   508 			engine_id = *(++argv);

   509 			}

   510 #endif

   511 		else if (strcmp(*argv,"-rand") == 0)

   512 			{

   513 			if (--argc < 1) goto bad;

   514 			inrand= *(++argv);

   515 			}

   516 

   517 		else

   518 			{

   519 			BIO_printf(bio_err,"unknown option %s\n",*argv);

   520 			badop=1;

   521 			break;

   522 			}

   523 		argc--;

   524 		argv++;

   525 		}

   526 	if (badop)

   527 		{

   528 bad:

   529 		sc_usage();

   530 		goto end;

   531 		}

   532 

   533 	OpenSSL_add_ssl_algorithms();

   534 	SSL_load_error_strings();

   535 

   536 #ifndef OPENSSL_NO_ENGINE

   537         e = setup_engine(bio_err, engine_id, 1);

   538 #endif

   539 	if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))

   540 		{

   541 		BIO_printf(bio_err, "Error getting password\n");

   542 		goto end;

   543 		}

   544 

   545 	if (key_file == NULL)

   546 		key_file = cert_file;

   547 

   548 

   549 	if (key_file)

   550 

   551 		{

   552 

   553 		key = load_key(bio_err, key_file, key_format, 0, pass, e,

   554 			       "client certificate private key file");

   555 		if (!key)

   556 			{

   557 			ERR_print_errors(bio_err);

   558 			goto end;

   559 			}

   560 

   561 		}

   562 

   563 	if (cert_file)

   564 

   565 		{

   566 		cert = load_cert(bio_err,cert_file,cert_format,

   567 				NULL, e, "client certificate file");

   568 

   569 		if (!cert)

   570 			{

   571 			ERR_print_errors(bio_err);

   572 			goto end;

   573 			}

   574 		}

   575 

   576 	if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL

   577 		&& !RAND_status())

   578 		{

   579 		BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");

   580 		}

   581 	if (inrand != NULL)

   582 		BIO_printf(bio_err,"%ld semi-random bytes loaded\n",

   583 			app_RAND_load_files(inrand));

   584 

   585 	if (bio_c_out == NULL)

   586 		{

   587 		if (c_quiet && !c_debug && !c_msg)

   588 			{

   589 			bio_c_out=BIO_new(BIO_s_null());

   590 			}

   591 		else

   592 			{

   593 			if (bio_c_out == NULL)

   594 				bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);

   595 				

   596 			}

   597 		}

   598 

   599 	ctx=SSL_CTX_new(meth);

   600 	if (ctx == NULL)

   601 		{

   602 		ERR_print_errors(bio_err);

   603 		goto end;

   604 		}

   605 

   606 	if (bugs)

   607 		SSL_CTX_set_options(ctx,SSL_OP_ALL|off);

   608 	else

   609 		SSL_CTX_set_options(ctx,off);

   610 	/* DTLS: partial reads end up discarding unread UDP bytes :-( 

   611 	 * Setting read ahead solves this problem.

   612 	 */

   613 	if (sock_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);

   614 

   615 	if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);

   616 	if (cipher != NULL)

   617 		if(!SSL_CTX_set_cipher_list(ctx,cipher)) {

   618 		BIO_printf(bio_err,"error setting cipher list\n");

   619 		ERR_print_errors(bio_err);

   620 		goto end;

   621 	}

   622 #if 0

   623 	else

   624 		SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));

   625 #endif

   626 

   627 	SSL_CTX_set_verify(ctx,verify,verify_callback);

   628 	if (!set_cert_key_stuff(ctx,cert,key))

   629 		goto end;

   630 

   631 	if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||

   632 		(!SSL_CTX_set_default_verify_paths(ctx)))

   633 		{

   634 		/* BIO_printf(bio_err,"error setting default verify locations\n"); */

   635 		ERR_print_errors(bio_err);

   636 		/* goto end; */

   637 		}

   638 

   639 	store = SSL_CTX_get_cert_store(ctx);

   640 	X509_STORE_set_flags(store, vflags);

   641 

   642 	con=SSL_new(ctx);

   643 	if (sess_in)

   644 		{

   645 		SSL_SESSION *sess;

   646 		BIO *stmp = BIO_new_file(sess_in, "r");

   647 		if (!stmp)

   648 			{

   649 			BIO_printf(bio_err, "Can't open session file %s\n",

   650 						sess_in);

   651 			ERR_print_errors(bio_err);

   652 			goto end;

   653 			}

   654 		sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);

   655 		BIO_free(stmp);

   656 		if (!sess)

   657 			{

   658 			BIO_printf(bio_err, "Can't open session file %s\n",

   659 						sess_in);

   660 			ERR_print_errors(bio_err);

   661 			goto end;

   662 			}

   663 		SSL_set_session(con, sess);

   664 		SSL_SESSION_free(sess);

   665 		}

   666 

   667 #ifndef OPENSSL_NO_KRB5

   668 	if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)

   669                 {

   670                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);

   671 		}

   672 #endif	/* OPENSSL_NO_KRB5  */

   673 /*	SSL_set_cipher_list(con,"RC4-MD5"); */

   674 

   675 re_start:

   676 

   677 	if (init_client(&s,host,port,sock_type) == 0)

   678 		{

   679 		BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());

   680 		SHUTDOWN(s);

   681 		goto end;

   682 		}

   683 	BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);

   684 

   685 #ifdef FIONBIO

   686 	if (c_nbio)

   687 		{

   688 		unsigned long l=1;

   689 		BIO_printf(bio_c_out,"turning on non blocking io\n");

   690 		if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)

   691 			{

   692 			ERR_print_errors(bio_err);

   693 			goto end;

   694 			}

   695 		}

   696 #endif                                              

   697 	if (c_Pause & 0x01) con->debug=1;

   698 

   699 	if ( SSL_version(con) == DTLS1_VERSION)

   700 		{

   701 		struct timeval timeout;

   702 

   703 		sbio=BIO_new_dgram(s,BIO_NOCLOSE);

   704 		if (getsockname(s, &peer, (void *)&peerlen) < 0)

   705 			{

   706 			BIO_printf(bio_err, "getsockname:errno=%d\n",

   707 				get_last_socket_error());

   708 			SHUTDOWN(s);

   709 			goto end;

   710 			}

   711 

   712 		(void)BIO_ctrl_set_connected(sbio, 1, &peer);

   713 

   714 		if ( enable_timeouts)

   715 			{

   716 			timeout.tv_sec = 0;

   717 			timeout.tv_usec = DGRAM_RCV_TIMEOUT;

   718 			BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);

   719 			

   720 			timeout.tv_sec = 0;

   721 			timeout.tv_usec = DGRAM_SND_TIMEOUT;

   722 			BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);

   723 			}

   724 

   725 		if ( mtu > 0)

   726 			{

   727 			SSL_set_options(con, SSL_OP_NO_QUERY_MTU);

   728 			SSL_set_mtu(con, mtu);

   729 			}

   730 		else

   731 			/* want to do MTU discovery */

   732 			BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);

   733 		}

   734 	else

   735 		sbio=BIO_new_socket(s,BIO_NOCLOSE);

   736 

   737 

   738 

   739 	if (nbio_test)

   740 		{

   741 		BIO *test;

   742 

   743 		test=BIO_new(BIO_f_nbio_test());

   744 		sbio=BIO_push(test,sbio);

   745 		}

   746 

   747 	if (c_debug)

   748 		{

   749 		con->debug=1;

   750 		BIO_set_callback(sbio,bio_dump_callback);

   751 		BIO_set_callback_arg(sbio,(char *)bio_c_out);

   752 		}

   753 	if (c_msg)

   754 		{

   755 		SSL_set_msg_callback(con, msg_cb);

   756 		SSL_set_msg_callback_arg(con, bio_c_out);

   757 		}

   758 

   759 	SSL_set_bio(con,sbio,sbio);

   760 	SSL_set_connect_state(con);

   761 

   762 	/* ok, lets connect */

   763 	width=SSL_get_fd(con)+1;

   764 

   765 	read_tty=1;

   766 	write_tty=0;

   767 	tty_on=0;

   768 	read_ssl=1;

   769 	write_ssl=1;

   770 	

   771 	cbuf_len=0;

   772 	cbuf_off=0;

   773 	sbuf_len=0;

   774 	sbuf_off=0;

   775 

   776 	/* This is an ugly hack that does a lot of assumptions */

   777 	/* We do have to handle multi-line responses which may come

   778  	   in a single packet or not. We therefore have to use

   779 	   BIO_gets() which does need a buffering BIO. So during

   780 	   the initial chitchat we do push a buffering BIO into the

   781 	   chain that is removed again later on to not disturb the

   782 	   rest of the s_client operation. */

   783 	if (starttls_proto == PROTO_SMTP)

   784 		{

   785 		int foundit=0;

   786 		BIO *fbio = BIO_new(BIO_f_buffer());

   787 		BIO_push(fbio, sbio);

   788 		/* wait for multi-line response to end from SMTP */

   789 		do

   790 			{

   791 			mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);

   792 			}

   793 		while (mbuf_len>3 && mbuf[3]=='-');

   794 		/* STARTTLS command requires EHLO... */

   795 		BIO_printf(fbio,"EHLO openssl.client.net\r\n");

   796 		(void)BIO_flush(fbio);

   797 		/* wait for multi-line response to end EHLO SMTP response */

   798 		do

   799 			{

   800 			mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);

   801 			if (strstr(mbuf,"STARTTLS"))

   802 				foundit=1;

   803 			}

   804 		while (mbuf_len>3 && mbuf[3]=='-');

   805 		(void)BIO_flush(fbio);

   806 		BIO_pop(fbio);

   807 		BIO_free(fbio);

   808 		if (!foundit)

   809 			BIO_printf(bio_err,

   810 				   "didn't found starttls in server response,"

   811 				   " try anyway...\n");

   812 		BIO_printf(sbio,"STARTTLS\r\n");

   813 		BIO_read(sbio,sbuf,BUFSIZZ);

   814 		}

   815 	else if (starttls_proto == PROTO_POP3)

   816 		{

   817 		BIO_read(sbio,mbuf,BUFSIZZ);

   818 		BIO_printf(sbio,"STLS\r\n");

   819 		BIO_read(sbio,sbuf,BUFSIZZ);

   820 		}

   821 	else if (starttls_proto == PROTO_IMAP)

   822 		{

   823 		int foundit=0;

   824 		BIO *fbio = BIO_new(BIO_f_buffer());

   825 		BIO_push(fbio, sbio);

   826 		BIO_gets(fbio,mbuf,BUFSIZZ);

   827 		/* STARTTLS command requires CAPABILITY... */

   828 		BIO_printf(fbio,". CAPABILITY\r\n");

   829 		(void)BIO_flush(fbio);

   830 		/* wait for multi-line CAPABILITY response */

   831 		do

   832 			{

   833 			mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);

   834 			if (strstr(mbuf,"STARTTLS"))

   835 				foundit=1;

   836 			}

   837 		while (mbuf_len>3 && mbuf[0]!='.');

   838 		(void)BIO_flush(fbio);

   839 		BIO_pop(fbio);

   840 		BIO_free(fbio);

   841 		if (!foundit)

   842 			BIO_printf(bio_err,

   843 				   "didn't found STARTTLS in server response,"

   844 				   " try anyway...\n");

   845 		BIO_printf(sbio,". STARTTLS\r\n");

   846 		BIO_read(sbio,sbuf,BUFSIZZ);

   847 		}

   848 	else if (starttls_proto == PROTO_FTP)

   849 		{

   850 		BIO *fbio = BIO_new(BIO_f_buffer());

   851 		BIO_push(fbio, sbio);

   852 		/* wait for multi-line response to end from FTP */

   853 		do

   854 			{

   855 			mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);

   856 			}

   857 		while (mbuf_len>3 && mbuf[3]=='-');

   858 		(void)BIO_flush(fbio);

   859 		BIO_pop(fbio);

   860 		BIO_free(fbio);

   861 		BIO_printf(sbio,"AUTH TLS\r\n");

   862 		BIO_read(sbio,sbuf,BUFSIZZ);

   863 		}

   864 

   865 	for (;;)

   866 		{

   867 		FD_ZERO(&readfds);

   868 		FD_ZERO(&writefds);

   869 

   870 		if (SSL_in_init(con) && !SSL_total_renegotiations(con))

   871 			{

   872 			in_init=1;

   873 			tty_on=0;

   874 			}

   875 		else

   876 			{

   877 			tty_on=1;

   878 			if (in_init)

   879 				{

   880 				in_init=0;

   881 				if (sess_out)

   882 					{

   883 					BIO *stmp = BIO_new_file(sess_out, "w");

   884 					if (stmp)

   885 						{

   886 						PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));

   887 						BIO_free(stmp);

   888 						}

   889 					else 

   890 						BIO_printf(bio_err, "Error writing session file %s\n", sess_out);

   891 					}

   892 				print_stuff(bio_c_out,con,full_log);

   893 				if (full_log > 0) full_log--;

   894 

   895 				if (starttls_proto)

   896 					{

   897 					BIO_printf(bio_err,"%s",mbuf);

   898 					/* We don't need to know any more */

   899 					starttls_proto = PROTO_OFF;

   900 					}

   901 

   902 				if (reconnect)

   903 					{

   904 					reconnect--;

   905 					BIO_printf(bio_c_out,"drop connection and then reconnect\n");

   906 					SSL_shutdown(con);

   907 					SSL_set_connect_state(con);

   908 					SHUTDOWN(SSL_get_fd(con));

   909 					goto re_start;

   910 					}

   911 				}

   912 			}

   913 

   914 		ssl_pending = read_ssl && SSL_pending(con);

   915 

   916 		if (!ssl_pending)

   917 			{

   918 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)

   919 			if (tty_on)

   920 				{

   921 				if (read_tty)  FD_SET(fileno(stdin),&readfds);

   922 				if (write_tty) FD_SET(fileno(stdout),&writefds);

   923 				

   924 				}

   925 			if (read_ssl)

   926 				FD_SET(SSL_get_fd(con),&readfds);

   927 			if (write_ssl)

   928 				FD_SET(SSL_get_fd(con),&writefds);

   929 #else

   930 			if(!tty_on || !write_tty) {

   931 				if (read_ssl)

   932 					FD_SET(SSL_get_fd(con),&readfds);

   933 				if (write_ssl)

   934 					FD_SET(SSL_get_fd(con),&writefds);

   935 			}

   936 #endif

   937 /*			printf("mode tty(%d %d%d) ssl(%d%d)\n",

   938 				tty_on,read_tty,write_tty,read_ssl,write_ssl);*/

   939 

   940 			/* Note: under VMS with SOCKETSHR the second parameter

   941 			 * is currently of type (int *) whereas under other

   942 			 * systems it is (void *) if you don't have a cast it

   943 			 * will choke the compiler: if you do have a cast then

   944 			 * you can either go for (int *) or (void *).

   945 			 */

   946 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)

   947                         /* Under Windows/DOS we make the assumption that we can

   948 			 * always write to the tty: therefore if we need to

   949 			 * write to the tty we just fall through. Otherwise

   950 			 * we timeout the select every second and see if there

   951 			 * are any keypresses. Note: this is a hack, in a proper

   952 			 * Windows application we wouldn't do this.

   953 			 */

   954 			i=0;

   955 			if(!write_tty) {

   956 				if(read_tty) {

   957 					tv.tv_sec = 1;

   958 					tv.tv_usec = 0;

   959 					i=select(width,(void *)&readfds,(void *)&writefds,

   960 						 NULL,&tv);

   961 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)

   962 					if(!i && (!_kbhit() || !read_tty) ) continue;

   963 #else

   964 					if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;

   965 #endif

   966 				} else 	i=select(width,(void *)&readfds,(void *)&writefds,

   967 					 NULL,NULL);

   968 			}

   969 #elif defined(OPENSSL_SYS_NETWARE)

   970 			if(!write_tty) {

   971 				if(read_tty) {

   972 					tv.tv_sec = 1;

   973 					tv.tv_usec = 0;

   974 					i=select(width,(void *)&readfds,(void *)&writefds,

   975 						NULL,&tv);

   976 				} else 	i=select(width,(void *)&readfds,(void *)&writefds,

   977 					NULL,NULL);

   978 			}

   979 #else

   980 			i=select(width,(void *)&readfds,(void *)&writefds,

   981 				 NULL,NULL);

   982 #endif

   983 			if ( i < 0)

   984 				{

   985 				BIO_printf(bio_err,"bad select %d\n",

   986 				get_last_socket_error());

   987 				goto shut;

   988 				/* goto end; */

   989 				}

   990 			}

   991 

   992 		if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))

   993 			{

   994 			k=SSL_write(con,&(cbuf[cbuf_off]),

   995 				(unsigned int)cbuf_len);

   996 			switch (SSL_get_error(con,k))

   997 				{

   998 			case SSL_ERROR_NONE:

   999 				cbuf_off+=k;

  1000 				cbuf_len-=k;

  1001 				if (k <= 0) goto end;

  1002 				/* we have done a  write(con,NULL,0); */

  1003 				if (cbuf_len <= 0)

  1004 					{

  1005 					read_tty=1;

  1006 					write_ssl=0;

  1007 					}

  1008 				else /* if (cbuf_len > 0) */

  1009 					{

  1010 					read_tty=0;

  1011 					write_ssl=1;

  1012 					}

  1013 				break;

  1014 			case SSL_ERROR_WANT_WRITE:

  1015 				BIO_printf(bio_c_out,"write W BLOCK\n");

  1016 				write_ssl=1;

  1017 				read_tty=0;

  1018 				break;

  1019 			case SSL_ERROR_WANT_READ:

  1020 				BIO_printf(bio_c_out,"write R BLOCK\n");

  1021 				write_tty=0;

  1022 				read_ssl=1;

  1023 				write_ssl=0;

  1024 				break;

  1025 			case SSL_ERROR_WANT_X509_LOOKUP:

  1026 				BIO_printf(bio_c_out,"write X BLOCK\n");

  1027 				break;

  1028 			case SSL_ERROR_ZERO_RETURN:

  1029 				if (cbuf_len != 0)

  1030 					{

  1031 					BIO_printf(bio_c_out,"shutdown\n");

  1032 					goto shut;

  1033 					}

  1034 				else

  1035 					{

  1036 					read_tty=1;

  1037 					write_ssl=0;

  1038 					break;

  1039 					}

  1040 				

  1041 			case SSL_ERROR_SYSCALL:

  1042 				if ((k != 0) || (cbuf_len != 0))

  1043 					{

  1044 					BIO_printf(bio_err,"write:errno=%d\n",

  1045 						get_last_socket_error());

  1046 					goto shut;

  1047 					}

  1048 				else

  1049 					{

  1050 					read_tty=1;

  1051 					write_ssl=0;

  1052 					}

  1053 				break;

  1054 			case SSL_ERROR_SSL:

  1055 				ERR_print_errors(bio_err);

  1056 				goto shut;

  1057 				}

  1058 			}

  1059 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)

  1060 		/* Assume Windows/DOS can always write */

  1061 		else if (!ssl_pending && write_tty)

  1062 #else

  1063 

  1064 		else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))

  1065 

  1066 #endif

  1067 			{

  1068 #ifdef CHARSET_EBCDIC

  1069 			ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);

  1070 #endif

  1071 

  1072 			i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);

  1073 

  1074 			if (i <= 0)

  1075 				{

  1076 				BIO_printf(bio_c_out,"DONE\n");

  1077 				goto shut;

  1078 				/* goto end; */

  1079 				}

  1080 

  1081 			sbuf_len-=i;;

  1082 			sbuf_off+=i;

  1083 			if (sbuf_len <= 0)

  1084 				{

  1085 				read_ssl=1;

  1086 				write_tty=0;

  1087 				}

  1088 			}

  1089 		else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))

  1090 			{

  1091 #ifdef RENEG

  1092 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }

  1093 #endif

  1094 #if 1

  1095 			k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );

  1096 #else

  1097 /* Demo for pending and peek :-) */

  1098 			k=SSL_read(con,sbuf,16);

  1099 { char zbuf[10240]; 

  1100 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));

  1101 

  1102 }

  1103 #endif

  1104 

  1105 			switch (SSL_get_error(con,k))

  1106 				{

  1107 			case SSL_ERROR_NONE:

  1108 				if (k <= 0)

  1109 					goto end;

  1110 				sbuf_off=0;

  1111 				sbuf_len=k;

  1112 

  1113 				read_ssl=0;

  1114 				write_tty=1;

  1115 				break;

  1116 			case SSL_ERROR_WANT_WRITE:

  1117 				BIO_printf(bio_c_out,"read W BLOCK\n");

  1118 				write_ssl=1;

  1119 				read_tty=0;

  1120 				break;

  1121 			case SSL_ERROR_WANT_READ:

  1122 				BIO_printf(bio_c_out,"read R BLOCK\n");

  1123 				write_tty=0;

  1124 				read_ssl=1;

  1125 				if ((read_tty == 0) && (write_ssl == 0))

  1126 					write_ssl=1;

  1127 				break;

  1128 			case SSL_ERROR_WANT_X509_LOOKUP:

  1129 				BIO_printf(bio_c_out,"read X BLOCK\n");

  1130 				break;

  1131 			case SSL_ERROR_SYSCALL:

  1132 				BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());

  1133 				goto shut;

  1134 			case SSL_ERROR_ZERO_RETURN:

  1135 				BIO_printf(bio_c_out,"closed\n");