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s_client.c revision 1.1.1.3
      1 /* apps/s_client.c */
      2 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com)
      3  * All rights reserved.
      4  *
      5  * This package is an SSL implementation written
      6  * by Eric Young (eay (at) 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 (at) 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 (at) 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 (at) 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) 1998-2006 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 (at) 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 (at) cryptsoft.com).  This product includes software written by Tim
    108  * Hudson (tjh (at) cryptsoft.com).
    109  *
    110  */
    111 /* ====================================================================
    112  * Copyright 2005 Nokia. All rights reserved.
    113  *
    114  * The portions of the attached software ("Contribution") is developed by
    115  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
    116  * license.
    117  *
    118  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
    119  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
    120  * support (see RFC 4279) to OpenSSL.
    121  *
    122  * No patent licenses or other rights except those expressly stated in
    123  * the OpenSSL open source license shall be deemed granted or received
    124  * expressly, by implication, estoppel, or otherwise.
    125  *
    126  * No assurances are provided by Nokia that the Contribution does not
    127  * infringe the patent or other intellectual property rights of any third
    128  * party or that the license provides you with all the necessary rights
    129  * to make use of the Contribution.
    130  *
    131  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
    132  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
    133  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
    134  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
    135  * OTHERWISE.
    136  */
    137 
    138 #include <assert.h>
    139 #include <ctype.h>
    140 #include <stdio.h>
    141 #include <stdlib.h>
    142 #include <string.h>
    143 #include <openssl/e_os2.h>
    144 #ifdef OPENSSL_NO_STDIO
    145 #define APPS_WIN16
    146 #endif
    147 
    148 /* With IPv6, it looks like Digital has mixed up the proper order of
    149    recursive header file inclusion, resulting in the compiler complaining
    150    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
    151    is needed to have fileno() declared correctly...  So let's define u_int */
    152 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
    153 #define __U_INT
    154 typedef unsigned int u_int;
    155 #endif
    156 
    157 #define USE_SOCKETS
    158 #include "apps.h"
    159 #include <openssl/x509.h>
    160 #include <openssl/ssl.h>
    161 #include <openssl/err.h>
    162 #include <openssl/pem.h>
    163 #include <openssl/rand.h>
    164 #include <openssl/ocsp.h>
    165 #include <openssl/bn.h>
    166 #ifndef OPENSSL_NO_SRP
    167 #include <openssl/srp.h>
    168 #endif
    169 #include "s_apps.h"
    170 #include "timeouts.h"
    171 
    172 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
    173 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
    174 #undef FIONBIO
    175 #endif
    176 
    177 #if defined(OPENSSL_SYS_BEOS_R5)
    178 #include <fcntl.h>
    179 #endif
    180 
    181 #undef PROG
    182 #define PROG	s_client_main
    183 
    184 /*#define SSL_HOST_NAME	"www.netscape.com" */
    185 /*#define SSL_HOST_NAME	"193.118.187.102" */
    186 #define SSL_HOST_NAME	"localhost"
    187 
    188 /*#define TEST_CERT "client.pem" */ /* no default cert. */
    189 
    190 #undef BUFSIZZ
    191 #define BUFSIZZ 1024*8
    192 
    193 extern int verify_depth;
    194 extern int verify_error;
    195 extern int verify_return_error;
    196 
    197 #ifdef FIONBIO
    198 static int c_nbio=0;
    199 #endif
    200 static int c_Pause=0;
    201 static int c_debug=0;
    202 #ifndef OPENSSL_NO_TLSEXT
    203 static int c_tlsextdebug=0;
    204 static int c_status_req=0;
    205 #endif
    206 static int c_msg=0;
    207 static int c_showcerts=0;
    208 
    209 static void sc_usage(void);
    210 static void print_stuff(BIO *berr,SSL *con,int full);
    211 #ifndef OPENSSL_NO_TLSEXT
    212 static int ocsp_resp_cb(SSL *s, void *arg);
    213 #endif
    214 static BIO *bio_c_out=NULL;
    215 static int c_quiet=0;
    216 static int c_ign_eof=0;
    217 
    218 #ifndef OPENSSL_NO_PSK
    219 /* Default PSK identity and key */
    220 static char *psk_identity="Client_identity";
    221 /*char *psk_key=NULL;  by default PSK is not used */
    222 
    223 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
    224 	unsigned int max_identity_len, unsigned char *psk,
    225 	unsigned int max_psk_len)
    226 	{
    227 	unsigned int psk_len = 0;
    228 	int ret;
    229         BIGNUM *bn=NULL;
    230 
    231 	if (c_debug)
    232 		BIO_printf(bio_c_out, "psk_client_cb\n");
    233 	if (!hint)
    234                 {
    235                 /* no ServerKeyExchange message*/
    236 		if (c_debug)
    237 			BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n");
    238                 }
    239         else if (c_debug)
    240 		BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
    241 
    242 	/* lookup PSK identity and PSK key based on the given identity hint here */
    243 	ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
    244 	if (ret < 0 || (unsigned int)ret > max_identity_len)
    245 		goto out_err;
    246 	if (c_debug)
    247 		BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret);
    248         ret=BN_hex2bn(&bn, psk_key);
    249         if (!ret)
    250                 {
    251                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
    252                 if (bn)
    253                         BN_free(bn);
    254                 return 0;
    255                 }
    256 
    257         if ((unsigned int)BN_num_bytes(bn) > max_psk_len)
    258                 {
    259                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
    260                         max_psk_len, BN_num_bytes(bn));
    261                 BN_free(bn);
    262                 return 0;
    263                 }
    264 
    265         psk_len=BN_bn2bin(bn, psk);
    266         BN_free(bn);
    267         if (psk_len == 0)
    268                 goto out_err;
    269 
    270 	if (c_debug)
    271 		BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
    272 
    273         return psk_len;
    274  out_err:
    275 	if (c_debug)
    276 		BIO_printf(bio_err, "Error in PSK client callback\n");
    277         return 0;
    278 	}
    279 #endif
    280 
    281 static void sc_usage(void)
    282 	{
    283 	BIO_printf(bio_err,"usage: s_client args\n");
    284 	BIO_printf(bio_err,"\n");
    285 	BIO_printf(bio_err," -host host     - use -connect instead\n");
    286 	BIO_printf(bio_err," -port port     - use -connect instead\n");
    287 	BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
    288 
    289 	BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
    290 	BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
    291 	BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
    292 	BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
    293 	BIO_printf(bio_err,"                 not specified but cert file is.\n");
    294 	BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
    295 	BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
    296 	BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
    297 	BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
    298 	BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
    299 	BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
    300 	BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
    301 	BIO_printf(bio_err," -debug        - extra output\n");
    302 #ifdef WATT32
    303 	BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
    304 #endif
    305 	BIO_printf(bio_err," -msg          - Show protocol messages\n");
    306 	BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
    307 	BIO_printf(bio_err," -state        - print the 'ssl' states\n");
    308 #ifdef FIONBIO
    309 	BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
    310 #endif
    311 	BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
    312 	BIO_printf(bio_err," -quiet        - no s_client output\n");
    313 	BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
    314 	BIO_printf(bio_err," -no_ign_eof   - don't ignore input eof\n");
    315 #ifndef OPENSSL_NO_PSK
    316 	BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
    317 	BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
    318 # ifndef OPENSSL_NO_JPAKE
    319 	BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
    320 # endif
    321 #endif
    322 #ifndef OPENSSL_NO_SRP
    323 	BIO_printf(bio_err," -srpuser user     - SRP authentification for 'user'\n");
    324 	BIO_printf(bio_err," -srppass arg      - password for 'user'\n");
    325 	BIO_printf(bio_err," -srp_lateuser     - SRP username into second ClientHello message\n");
    326 	BIO_printf(bio_err," -srp_moregroups   - Tolerate other than the known g N values.\n");
    327 	BIO_printf(bio_err," -srp_strength int - minimal mength in bits for N (default %d).\n",SRP_MINIMAL_N);
    328 #endif
    329 	BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
    330 	BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
    331 	BIO_printf(bio_err," -tls1_2       - just use TLSv1.2\n");
    332 	BIO_printf(bio_err," -tls1_1       - just use TLSv1.1\n");
    333 	BIO_printf(bio_err," -tls1         - just use TLSv1\n");
    334 	BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
    335 	BIO_printf(bio_err," -mtu          - set the link layer MTU\n");
    336 	BIO_printf(bio_err," -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
    337 	BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
    338 	BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
    339 	BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
    340 	BIO_printf(bio_err,"                 command to see what is available\n");
    341 	BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
    342 	BIO_printf(bio_err,"                 for those protocols that support it, where\n");
    343 	BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
    344 	BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
    345 	BIO_printf(bio_err,"                 are supported.\n");
    346 #ifndef OPENSSL_NO_ENGINE
    347 	BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
    348 #endif
    349 	BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
    350 	BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
    351 	BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
    352 #ifndef OPENSSL_NO_TLSEXT
    353 	BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
    354 	BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
    355 	BIO_printf(bio_err," -status           - request certificate status from server\n");
    356 	BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
    357 #endif
    358 	BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
    359 	}
    360 
    361 #ifndef OPENSSL_NO_TLSEXT
    362 
    363 /* This is a context that we pass to callbacks */
    364 typedef struct tlsextctx_st {
    365    BIO * biodebug;
    366    int ack;
    367 } tlsextctx;
    368 
    369 
    370 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
    371 	{
    372 	tlsextctx * p = (tlsextctx *) arg;
    373 	const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
    374 	if (SSL_get_servername_type(s) != -1)
    375  	        p->ack = !SSL_session_reused(s) && hn != NULL;
    376 	else
    377 		BIO_printf(bio_err,"Can't use SSL_get_servername\n");
    378 
    379 	return SSL_TLSEXT_ERR_OK;
    380 	}
    381 
    382 #ifndef OPENSSL_NO_SRP
    383 
    384 /* This is a context that we pass to all callbacks */
    385 typedef struct srp_arg_st
    386 	{
    387 	char *srppassin;
    388 	char *srplogin;
    389 	int msg;   /* copy from c_msg */
    390 	int debug; /* copy from c_debug */
    391 	int amp;   /* allow more groups */
    392 	int strength /* minimal size for N */ ;
    393 	} SRP_ARG;
    394 
    395 #define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
    396 
    397 static int SRP_Verify_N_and_g(BIGNUM *N, BIGNUM *g)
    398 	{
    399 	BN_CTX *bn_ctx = BN_CTX_new();
    400 	BIGNUM *p = BN_new();
    401 	BIGNUM *r = BN_new();
    402 	int ret =
    403 		g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
    404 		BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
    405 		p != NULL && BN_rshift1(p, N) &&
    406 
    407 		/* p = (N-1)/2 */
    408 		BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
    409 		r != NULL &&
    410 
    411 		/* verify g^((N-1)/2) == -1 (mod N) */
    412 		BN_mod_exp(r, g, p, N, bn_ctx) &&
    413 		BN_add_word(r, 1) &&
    414 		BN_cmp(r, N) == 0;
    415 
    416 	if(r)
    417 		BN_free(r);
    418 	if(p)
    419 		BN_free(p);
    420 	if(bn_ctx)
    421 		BN_CTX_free(bn_ctx);
    422 	return ret;
    423 	}
    424 
    425 static int MS_CALLBACK ssl_srp_verify_param_cb(SSL *s, void *arg)
    426 	{
    427 	SRP_ARG *srp_arg = (SRP_ARG *)arg;
    428 	BIGNUM *N = NULL, *g = NULL;
    429 	if (!(N = SSL_get_srp_N(s)) || !(g = SSL_get_srp_g(s)))
    430 		return 0;
    431 	if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1)
    432 		{
    433     		BIO_printf(bio_err, "SRP parameters:\n");
    434 		BIO_printf(bio_err,"\tN="); BN_print(bio_err,N);
    435 		BIO_printf(bio_err,"\n\tg="); BN_print(bio_err,g);
    436 		BIO_printf(bio_err,"\n");
    437 		}
    438 
    439 	if (SRP_check_known_gN_param(g,N))
    440 		return 1;
    441 
    442 	if (srp_arg->amp == 1)
    443 		{
    444 		if (srp_arg->debug)
    445 			BIO_printf(bio_err, "SRP param N and g are not known params, going to check deeper.\n");
    446 
    447 /* The srp_moregroups must be used with caution, testing primes costs time.
    448    Implementors should rather add the value to the known ones.
    449    The minimal size has already been tested.
    450 */
    451 		if (BN_num_bits(g) <= BN_BITS && SRP_Verify_N_and_g(N,g))
    452 			return 1;
    453 		}
    454 	BIO_printf(bio_err, "SRP param N and g rejected.\n");
    455 	return 0;
    456 	}
    457 
    458 #define PWD_STRLEN 1024
    459 
    460 static char * MS_CALLBACK ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
    461 	{
    462 	SRP_ARG *srp_arg = (SRP_ARG *)arg;
    463 	char *pass = (char *)OPENSSL_malloc(PWD_STRLEN+1);
    464 	PW_CB_DATA cb_tmp;
    465 	int l;
    466 
    467 	cb_tmp.password = (char *)srp_arg->srppassin;
    468 	cb_tmp.prompt_info = "SRP user";
    469 	if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp))<0)
    470 		{
    471 		BIO_printf (bio_err, "Can't read Password\n");
    472 		OPENSSL_free(pass);
    473 		return NULL;
    474 		}
    475 	*(pass+l)= '\0';
    476 
    477 	return pass;
    478 	}
    479 
    480 static char * MS_CALLBACK missing_srp_username_callback(SSL *s, void *arg)
    481 	{
    482 	SRP_ARG *srp_arg = (SRP_ARG *)arg;
    483 	return BUF_strdup(srp_arg->srplogin);
    484 	}
    485 
    486 #endif
    487 #endif
    488 
    489 enum
    490 {
    491 	PROTO_OFF	= 0,
    492 	PROTO_SMTP,
    493 	PROTO_POP3,
    494 	PROTO_IMAP,
    495 	PROTO_FTP,
    496 	PROTO_XMPP
    497 };
    498 
    499 int MAIN(int, char **);
    500 
    501 int MAIN(int argc, char **argv)
    502 	{
    503 	unsigned int off=0, clr=0;
    504 	SSL *con=NULL;
    505 #ifndef OPENSSL_NO_KRB5
    506 	KSSL_CTX *kctx;
    507 #endif
    508 	int s,k,width,state=0;
    509 	char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
    510 	int cbuf_len,cbuf_off;
    511 	int sbuf_len,sbuf_off;
    512 	fd_set readfds,writefds;
    513 	short port=PORT;
    514 	int full_log=1;
    515 	char *host=SSL_HOST_NAME;
    516 	char *cert_file=NULL,*key_file=NULL;
    517 	int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
    518 	char *passarg = NULL, *pass = NULL;
    519 	X509 *cert = NULL;
    520 	EVP_PKEY *key = NULL;
    521 	char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
    522 	int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
    523 	int crlf=0;
    524 	int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
    525 	SSL_CTX *ctx=NULL;
    526 	int ret=1,in_init=1,i,nbio_test=0;
    527 	int starttls_proto = PROTO_OFF;
    528 	int prexit = 0;
    529 	X509_VERIFY_PARAM *vpm = NULL;
    530 	int badarg = 0;
    531 	const SSL_METHOD *meth=NULL;
    532 	int socket_type=SOCK_STREAM;
    533 	BIO *sbio;
    534 	char *inrand=NULL;
    535 	int mbuf_len=0;
    536 	struct timeval timeout, *timeoutp;
    537 #ifndef OPENSSL_NO_ENGINE
    538 	char *engine_id=NULL;
    539 	char *ssl_client_engine_id=NULL;
    540 	ENGINE *ssl_client_engine=NULL;
    541 #endif
    542 	ENGINE *e=NULL;
    543 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
    544 	struct timeval tv;
    545 #if defined(OPENSSL_SYS_BEOS_R5)
    546 	int stdin_set = 0;
    547 #endif
    548 #endif
    549 #ifndef OPENSSL_NO_TLSEXT
    550 	char *servername = NULL;
    551         tlsextctx tlsextcbp =
    552         {NULL,0};
    553 #endif
    554 	char *sess_in = NULL;
    555 	char *sess_out = NULL;
    556 	struct sockaddr peer;
    557 	int peerlen = sizeof(peer);
    558 	int enable_timeouts = 0 ;
    559 	long socket_mtu = 0;
    560 #ifndef OPENSSL_NO_JPAKE
    561 	char *jpake_secret = NULL;
    562 #endif
    563 #ifndef OPENSSL_NO_SRP
    564 	char * srppass = NULL;
    565 	int srp_lateuser = 0;
    566 	SRP_ARG srp_arg = {NULL,NULL,0,0,0,1024};
    567 #endif
    568 
    569 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
    570 	meth=SSLv23_client_method();
    571 #elif !defined(OPENSSL_NO_SSL3)
    572 	meth=SSLv3_client_method();
    573 #elif !defined(OPENSSL_NO_SSL2)
    574 	meth=SSLv2_client_method();
    575 #endif
    576 
    577 	apps_startup();
    578 	c_Pause=0;
    579 	c_quiet=0;
    580 	c_ign_eof=0;
    581 	c_debug=0;
    582 	c_msg=0;
    583 	c_showcerts=0;
    584 
    585 	if (bio_err == NULL)
    586 		bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
    587 
    588 	if (!load_config(bio_err, NULL))
    589 		goto end;
    590 
    591 	if (	((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
    592 		((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
    593 		((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
    594 		{
    595 		BIO_printf(bio_err,"out of memory\n");
    596 		goto end;
    597 		}
    598 
    599 	verify_depth=0;
    600 	verify_error=X509_V_OK;
    601 #ifdef FIONBIO
    602 	c_nbio=0;
    603 #endif
    604 
    605 	argc--;
    606 	argv++;
    607 	while (argc >= 1)
    608 		{
    609 		if	(strcmp(*argv,"-host") == 0)
    610 			{
    611 			if (--argc < 1) goto bad;
    612 			host= *(++argv);
    613 			}
    614 		else if	(strcmp(*argv,"-port") == 0)
    615 			{
    616 			if (--argc < 1) goto bad;
    617 			port=atoi(*(++argv));
    618 			if (port == 0) goto bad;
    619 			}
    620 		else if (strcmp(*argv,"-connect") == 0)
    621 			{
    622 			if (--argc < 1) goto bad;
    623 			if (!extract_host_port(*(++argv),&host,NULL,&port))
    624 				goto bad;
    625 			}
    626 		else if	(strcmp(*argv,"-verify") == 0)
    627 			{
    628 			verify=SSL_VERIFY_PEER;
    629 			if (--argc < 1) goto bad;
    630 			verify_depth=atoi(*(++argv));
    631 			BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
    632 			}
    633 		else if	(strcmp(*argv,"-cert") == 0)
    634 			{
    635 			if (--argc < 1) goto bad;
    636 			cert_file= *(++argv);
    637 			}
    638 		else if	(strcmp(*argv,"-sess_out") == 0)
    639 			{
    640 			if (--argc < 1) goto bad;
    641 			sess_out = *(++argv);
    642 			}
    643 		else if	(strcmp(*argv,"-sess_in") == 0)
    644 			{
    645 			if (--argc < 1) goto bad;
    646 			sess_in = *(++argv);
    647 			}
    648 		else if	(strcmp(*argv,"-certform") == 0)
    649 			{
    650 			if (--argc < 1) goto bad;
    651 			cert_format = str2fmt(*(++argv));
    652 			}
    653 		else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
    654 			{
    655 			if (badarg)
    656 				goto bad;
    657 			continue;
    658 			}
    659 		else if (strcmp(*argv,"-verify_return_error") == 0)
    660 			verify_return_error = 1;
    661 		else if	(strcmp(*argv,"-prexit") == 0)
    662 			prexit=1;
    663 		else if	(strcmp(*argv,"-crlf") == 0)
    664 			crlf=1;
    665 		else if	(strcmp(*argv,"-quiet") == 0)
    666 			{
    667 			c_quiet=1;
    668 			c_ign_eof=1;
    669 			}
    670 		else if	(strcmp(*argv,"-ign_eof") == 0)
    671 			c_ign_eof=1;
    672 		else if	(strcmp(*argv,"-no_ign_eof") == 0)
    673 			c_ign_eof=0;
    674 		else if	(strcmp(*argv,"-pause") == 0)
    675 			c_Pause=1;
    676 		else if	(strcmp(*argv,"-debug") == 0)
    677 			c_debug=1;
    678 #ifndef OPENSSL_NO_TLSEXT
    679 		else if	(strcmp(*argv,"-tlsextdebug") == 0)
    680 			c_tlsextdebug=1;
    681 		else if	(strcmp(*argv,"-status") == 0)
    682 			c_status_req=1;
    683 #endif
    684 #ifdef WATT32
    685 		else if (strcmp(*argv,"-wdebug") == 0)
    686 			dbug_init();
    687 #endif
    688 		else if	(strcmp(*argv,"-msg") == 0)
    689 			c_msg=1;
    690 		else if	(strcmp(*argv,"-showcerts") == 0)
    691 			c_showcerts=1;
    692 		else if	(strcmp(*argv,"-nbio_test") == 0)
    693 			nbio_test=1;
    694 		else if	(strcmp(*argv,"-state") == 0)
    695 			state=1;
    696 #ifndef OPENSSL_NO_PSK
    697                 else if (strcmp(*argv,"-psk_identity") == 0)
    698 			{
    699 			if (--argc < 1) goto bad;
    700 			psk_identity=*(++argv);
    701 			}
    702                 else if (strcmp(*argv,"-psk") == 0)
    703 			{
    704                         size_t j;
    705 
    706 			if (--argc < 1) goto bad;
    707 			psk_key=*(++argv);
    708 			for (j = 0; j < strlen(psk_key); j++)
    709                                 {
    710                                 if (isxdigit((int)psk_key[j]))
    711                                         continue;
    712                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
    713                                 goto bad;
    714                                 }
    715 			}
    716 #endif
    717 #ifndef OPENSSL_NO_SRP
    718 		else if (strcmp(*argv,"-srpuser") == 0)
    719 			{
    720 			if (--argc < 1) goto bad;
    721 			srp_arg.srplogin= *(++argv);
    722 			meth=TLSv1_client_method();
    723 			}
    724 		else if (strcmp(*argv,"-srppass") == 0)
    725 			{
    726 			if (--argc < 1) goto bad;
    727 			srppass= *(++argv);
    728 			meth=TLSv1_client_method();
    729 			}
    730 		else if (strcmp(*argv,"-srp_strength") == 0)
    731 			{
    732 			if (--argc < 1) goto bad;
    733 			srp_arg.strength=atoi(*(++argv));
    734 			BIO_printf(bio_err,"SRP minimal length for N is %d\n",srp_arg.strength);
    735 			meth=TLSv1_client_method();
    736 			}
    737 		else if (strcmp(*argv,"-srp_lateuser") == 0)
    738 			{
    739 			srp_lateuser= 1;
    740 			meth=TLSv1_client_method();
    741 			}
    742 		else if	(strcmp(*argv,"-srp_moregroups") == 0)
    743 			{
    744 			srp_arg.amp=1;
    745 			meth=TLSv1_client_method();
    746 			}
    747 #endif
    748 #ifndef OPENSSL_NO_SSL2
    749 		else if	(strcmp(*argv,"-ssl2") == 0)
    750 			meth=SSLv2_client_method();
    751 #endif
    752 #ifndef OPENSSL_NO_SSL3
    753 		else if	(strcmp(*argv,"-ssl3") == 0)
    754 			meth=SSLv3_client_method();
    755 #endif
    756 #ifndef OPENSSL_NO_TLS1
    757 		else if	(strcmp(*argv,"-tls1_2") == 0)
    758 			meth=TLSv1_2_client_method();
    759 		else if	(strcmp(*argv,"-tls1_1") == 0)
    760 			meth=TLSv1_1_client_method();
    761 		else if	(strcmp(*argv,"-tls1") == 0)
    762 			meth=TLSv1_client_method();
    763 #endif
    764 #ifndef OPENSSL_NO_DTLS1
    765 		else if	(strcmp(*argv,"-dtls1") == 0)
    766 			{
    767 			meth=DTLSv1_client_method();
    768 			socket_type=SOCK_DGRAM;
    769 			}
    770 		else if (strcmp(*argv,"-timeout") == 0)
    771 			enable_timeouts=1;
    772 		else if (strcmp(*argv,"-mtu") == 0)
    773 			{
    774 			if (--argc < 1) goto bad;
    775 			socket_mtu = atol(*(++argv));
    776 			}
    777 #endif
    778 		else if (strcmp(*argv,"-bugs") == 0)
    779 			bugs=1;
    780 		else if	(strcmp(*argv,"-keyform") == 0)
    781 			{
    782 			if (--argc < 1) goto bad;
    783 			key_format = str2fmt(*(++argv));
    784 			}
    785 		else if	(strcmp(*argv,"-pass") == 0)
    786 			{
    787 			if (--argc < 1) goto bad;
    788 			passarg = *(++argv);
    789 			}
    790 		else if	(strcmp(*argv,"-key") == 0)
    791 			{
    792 			if (--argc < 1) goto bad;
    793 			key_file= *(++argv);
    794 			}
    795 		else if	(strcmp(*argv,"-reconnect") == 0)
    796 			{
    797 			reconnect=5;
    798 			}
    799 		else if	(strcmp(*argv,"-CApath") == 0)
    800 			{
    801 			if (--argc < 1) goto bad;
    802 			CApath= *(++argv);
    803 			}
    804 		else if	(strcmp(*argv,"-CAfile") == 0)
    805 			{
    806 			if (--argc < 1) goto bad;
    807 			CAfile= *(++argv);
    808 			}
    809 		else if (strcmp(*argv,"-no_tls1_2") == 0)
    810 			off|=SSL_OP_NO_TLSv1_2;
    811 		else if (strcmp(*argv,"-no_tls1_1") == 0)
    812 			off|=SSL_OP_NO_TLSv1_1;
    813 		else if (strcmp(*argv,"-no_tls1") == 0)
    814 			off|=SSL_OP_NO_TLSv1;
    815 		else if (strcmp(*argv,"-no_ssl3") == 0)
    816 			off|=SSL_OP_NO_SSLv3;
    817 		else if (strcmp(*argv,"-no_ssl2") == 0)
    818 			off|=SSL_OP_NO_SSLv2;
    819 		else if	(strcmp(*argv,"-no_comp") == 0)
    820 			{ off|=SSL_OP_NO_COMPRESSION; }
    821 #ifndef OPENSSL_NO_TLSEXT
    822 		else if	(strcmp(*argv,"-no_ticket") == 0)
    823 			{ off|=SSL_OP_NO_TICKET; }
    824 #endif
    825 		else if (strcmp(*argv,"-serverpref") == 0)
    826 			off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
    827 		else if (strcmp(*argv,"-legacy_renegotiation") == 0)
    828 			off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
    829 		else if	(strcmp(*argv,"-legacy_server_connect") == 0)
    830 			{ off|=SSL_OP_LEGACY_SERVER_CONNECT; }
    831 		else if	(strcmp(*argv,"-no_legacy_server_connect") == 0)
    832 			{ clr|=SSL_OP_LEGACY_SERVER_CONNECT; }
    833 		else if	(strcmp(*argv,"-cipher") == 0)
    834 			{
    835 			if (--argc < 1) goto bad;
    836 			cipher= *(++argv);
    837 			}
    838 #ifdef FIONBIO
    839 		else if (strcmp(*argv,"-nbio") == 0)
    840 			{ c_nbio=1; }
    841 #endif
    842 		else if	(strcmp(*argv,"-starttls") == 0)
    843 			{
    844 			if (--argc < 1) goto bad;
    845 			++argv;
    846 			if (strcmp(*argv,"smtp") == 0)
    847 				starttls_proto = PROTO_SMTP;
    848 			else if (strcmp(*argv,"pop3") == 0)
    849 				starttls_proto = PROTO_POP3;
    850 			else if (strcmp(*argv,"imap") == 0)
    851 				starttls_proto = PROTO_IMAP;
    852 			else if (strcmp(*argv,"ftp") == 0)
    853 				starttls_proto = PROTO_FTP;
    854 			else if (strcmp(*argv, "xmpp") == 0)
    855 				starttls_proto = PROTO_XMPP;
    856 			else
    857 				goto bad;
    858 			}
    859 #ifndef OPENSSL_NO_ENGINE
    860 		else if	(strcmp(*argv,"-engine") == 0)
    861 			{
    862 			if (--argc < 1) goto bad;
    863 			engine_id = *(++argv);
    864 			}
    865 		else if	(strcmp(*argv,"-ssl_client_engine") == 0)
    866 			{
    867 			if (--argc < 1) goto bad;
    868 			ssl_client_engine_id = *(++argv);
    869 			}
    870 #endif
    871 		else if (strcmp(*argv,"-rand") == 0)
    872 			{
    873 			if (--argc < 1) goto bad;
    874 			inrand= *(++argv);
    875 			}
    876 #ifndef OPENSSL_NO_TLSEXT
    877 		else if (strcmp(*argv,"-servername") == 0)
    878 			{
    879 			if (--argc < 1) goto bad;
    880 			servername= *(++argv);
    881 			/* meth=TLSv1_client_method(); */
    882 			}
    883 #endif
    884 #ifndef OPENSSL_NO_JPAKE
    885 		else if (strcmp(*argv,"-jpake") == 0)
    886 			{
    887 			if (--argc < 1) goto bad;
    888 			jpake_secret = *++argv;
    889 			}
    890 #endif
    891 		else
    892 			{
    893 			BIO_printf(bio_err,"unknown option %s\n",*argv);
    894 			badop=1;
    895 			break;
    896 			}
    897 		argc--;
    898 		argv++;
    899 		}
    900 	if (badop)
    901 		{
    902 bad:
    903 		sc_usage();
    904 		goto end;
    905 		}
    906 
    907 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
    908 	if (jpake_secret)
    909 		{
    910 		if (psk_key)
    911 			{
    912 			BIO_printf(bio_err,
    913 				   "Can't use JPAKE and PSK together\n");
    914 			goto end;
    915 			}
    916 		psk_identity = "JPAKE";
    917 		}
    918 
    919 	if (cipher)
    920 		{
    921 		BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
    922 		goto end;
    923 		}
    924 	cipher = "PSK";
    925 #endif
    926 
    927 	OpenSSL_add_ssl_algorithms();
    928 	SSL_load_error_strings();
    929 
    930 #ifndef OPENSSL_NO_ENGINE
    931         e = setup_engine(bio_err, engine_id, 1);
    932 	if (ssl_client_engine_id)
    933 		{
    934 		ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
    935 		if (!ssl_client_engine)
    936 			{
    937 			BIO_printf(bio_err,
    938 					"Error getting client auth engine\n");
    939 			goto end;
    940 			}
    941 		}
    942 
    943 #endif
    944 	if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
    945 		{
    946 		BIO_printf(bio_err, "Error getting password\n");
    947 		goto end;
    948 		}
    949 
    950 	if (key_file == NULL)
    951 		key_file = cert_file;
    952 
    953 
    954 	if (key_file)
    955 
    956 		{
    957 
    958 		key = load_key(bio_err, key_file, key_format, 0, pass, e,
    959 			       "client certificate private key file");
    960 		if (!key)
    961 			{
    962 			ERR_print_errors(bio_err);
    963 			goto end;
    964 			}
    965 
    966 		}
    967 
    968 	if (cert_file)
    969 
    970 		{
    971 		cert = load_cert(bio_err,cert_file,cert_format,
    972 				NULL, e, "client certificate file");
    973 
    974 		if (!cert)
    975 			{
    976 			ERR_print_errors(bio_err);
    977 			goto end;
    978 			}
    979 		}
    980 
    981 	if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
    982 		&& !RAND_status())
    983 		{
    984 		BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
    985 		}
    986 	if (inrand != NULL)
    987 		BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
    988 			app_RAND_load_files(inrand));
    989 
    990 	if (bio_c_out == NULL)
    991 		{
    992 		if (c_quiet && !c_debug && !c_msg)
    993 			{
    994 			bio_c_out=BIO_new(BIO_s_null());
    995 			}
    996 		else
    997 			{
    998 			if (bio_c_out == NULL)
    999 				bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
   1000 			}
   1001 		}
   1002 
   1003 #ifndef OPENSSL_NO_SRP
   1004 	if(!app_passwd(bio_err, srppass, NULL, &srp_arg.srppassin, NULL))
   1005 		{
   1006 		BIO_printf(bio_err, "Error getting password\n");
   1007 		goto end;
   1008 		}
   1009 #endif
   1010 
   1011 	ctx=SSL_CTX_new(meth);
   1012 	if (ctx == NULL)
   1013 		{
   1014 		ERR_print_errors(bio_err);
   1015 		goto end;
   1016 		}
   1017 
   1018 	if (vpm)
   1019 		SSL_CTX_set1_param(ctx, vpm);
   1020 
   1021 #ifndef OPENSSL_NO_ENGINE
   1022 	if (ssl_client_engine)
   1023 		{
   1024 		if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine))
   1025 			{
   1026 			BIO_puts(bio_err, "Error setting client auth engine\n");
   1027 			ERR_print_errors(bio_err);
   1028 			ENGINE_free(ssl_client_engine);
   1029 			goto end;
   1030 			}
   1031 		ENGINE_free(ssl_client_engine);
   1032 		}
   1033 #endif
   1034 
   1035 #ifndef OPENSSL_NO_PSK
   1036 #ifdef OPENSSL_NO_JPAKE
   1037 	if (psk_key != NULL)
   1038 #else
   1039 	if (psk_key != NULL || jpake_secret)
   1040 #endif
   1041 		{
   1042 		if (c_debug)
   1043 			BIO_printf(bio_c_out, "PSK key given or JPAKE in use, setting client callback\n");
   1044 		SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
   1045 		}
   1046 #endif
   1047 	/* HACK while TLS v1.2 is disabled by default */
   1048 	if (!(off & SSL_OP_NO_TLSv1_2))
   1049 		SSL_CTX_clear_options(ctx, SSL_OP_NO_TLSv1_2);
   1050 	if (bugs)
   1051 		SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
   1052 	else
   1053 		SSL_CTX_set_options(ctx,off);
   1054 
   1055 	if (clr)
   1056 		SSL_CTX_clear_options(ctx, clr);
   1057 	/* DTLS: partial reads end up discarding unread UDP bytes :-(
   1058 	 * Setting read ahead solves this problem.
   1059 	 */
   1060 	if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
   1061 
   1062 	if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
   1063 	if (cipher != NULL)
   1064 		if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
   1065 		BIO_printf(bio_err,"error setting cipher list\n");
   1066 		ERR_print_errors(bio_err);
   1067 		goto end;
   1068 	}
   1069 #if 0
   1070 	else
   1071 		SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
   1072 #endif
   1073 
   1074 	SSL_CTX_set_verify(ctx,verify,verify_callback);
   1075 	if (!set_cert_key_stuff(ctx,cert,key))
   1076 		goto end;
   1077 
   1078 	if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
   1079 		(!SSL_CTX_set_default_verify_paths(ctx)))
   1080 		{
   1081 		/* BIO_printf(bio_err,"error setting default verify locations\n"); */
   1082 		ERR_print_errors(bio_err);
   1083 		/* goto end; */
   1084 		}
   1085 
   1086 #ifndef OPENSSL_NO_TLSEXT
   1087 	if (servername != NULL)
   1088 		{
   1089 		tlsextcbp.biodebug = bio_err;
   1090 		SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
   1091 		SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
   1092 		}
   1093 #ifndef OPENSSL_NO_SRP
   1094         if (srp_arg.srplogin)
   1095 		{
   1096 		if (srp_lateuser)
   1097 			SSL_CTX_set_srp_missing_srp_username_callback(ctx,missing_srp_username_callback);
   1098 		else if (!SSL_CTX_set_srp_username(ctx, srp_arg.srplogin))
   1099 			{
   1100 			BIO_printf(bio_err,"Unable to set SRP username\n");
   1101 			goto end;
   1102 			}
   1103 		srp_arg.msg = c_msg;
   1104 		srp_arg.debug = c_debug ;
   1105 		SSL_CTX_set_srp_cb_arg(ctx,&srp_arg);
   1106 		SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
   1107 		SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
   1108 		if (c_msg || c_debug || srp_arg.amp == 0)
   1109 			SSL_CTX_set_srp_verify_param_callback(ctx, ssl_srp_verify_param_cb);
   1110 		}
   1111 
   1112 #endif
   1113 #endif
   1114 
   1115 	con=SSL_new(ctx);
   1116 	if (sess_in)
   1117 		{
   1118 		SSL_SESSION *sess;
   1119 		BIO *stmp = BIO_new_file(sess_in, "r");
   1120 		if (!stmp)
   1121 			{
   1122 			BIO_printf(bio_err, "Can't open session file %s\n",
   1123 						sess_in);
   1124 			ERR_print_errors(bio_err);
   1125 			goto end;
   1126 			}
   1127 		sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
   1128 		BIO_free(stmp);
   1129 		if (!sess)
   1130 			{
   1131 			BIO_printf(bio_err, "Can't open session file %s\n",
   1132 						sess_in);
   1133 			ERR_print_errors(bio_err);
   1134 			goto end;
   1135 			}
   1136 		SSL_set_session(con, sess);
   1137 		SSL_SESSION_free(sess);
   1138 		}
   1139 #ifndef OPENSSL_NO_TLSEXT
   1140 	if (servername != NULL)
   1141 		{
   1142 		if (!SSL_set_tlsext_host_name(con,servername))
   1143 			{
   1144 			BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
   1145 			ERR_print_errors(bio_err);
   1146 			goto end;
   1147 			}
   1148 		}
   1149 #endif
   1150 #ifndef OPENSSL_NO_KRB5
   1151 	if (con  &&  (kctx = kssl_ctx_new()) != NULL)
   1152                 {
   1153 		SSL_set0_kssl_ctx(con, kctx);
   1154                 kssl_ctx_setstring(kctx, KSSL_SERVER, host);
   1155 		}
   1156 #endif	/* OPENSSL_NO_KRB5  */
   1157 /*	SSL_set_cipher_list(con,"RC4-MD5"); */
   1158 #if 0
   1159 #ifdef TLSEXT_TYPE_opaque_prf_input
   1160 	SSL_set_tlsext_opaque_prf_input(con, "Test client", 11);
   1161 #endif
   1162 #endif
   1163 
   1164 re_start:
   1165 
   1166 	if (init_client(&s,host,port,socket_type) == 0)
   1167 		{
   1168 		BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
   1169 		SHUTDOWN(s);
   1170 		goto end;
   1171 		}
   1172 	BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
   1173 
   1174 #ifdef FIONBIO
   1175 	if (c_nbio)
   1176 		{
   1177 		unsigned long l=1;
   1178 		BIO_printf(bio_c_out,"turning on non blocking io\n");
   1179 		if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
   1180 			{
   1181 			ERR_print_errors(bio_err);
   1182 			goto end;
   1183 			}
   1184 		}
   1185 #endif
   1186 	if (c_Pause & 0x01) SSL_set_debug(con, 1);
   1187 
   1188 	if ( SSL_version(con) == DTLS1_VERSION)
   1189 		{
   1190 
   1191 		sbio=BIO_new_dgram(s,BIO_NOCLOSE);
   1192 		if (getsockname(s, &peer, (void *)&peerlen) < 0)
   1193 			{
   1194 			BIO_printf(bio_err, "getsockname:errno=%d\n",
   1195 				get_last_socket_error());
   1196 			SHUTDOWN(s);
   1197 			goto end;
   1198 			}
   1199 
   1200 		(void)BIO_ctrl_set_connected(sbio, 1, &peer);
   1201 
   1202 		if (enable_timeouts)
   1203 			{
   1204 			timeout.tv_sec = 0;
   1205 			timeout.tv_usec = DGRAM_RCV_TIMEOUT;
   1206 			BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
   1207 
   1208 			timeout.tv_sec = 0;
   1209 			timeout.tv_usec = DGRAM_SND_TIMEOUT;
   1210 			BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
   1211 			}
   1212 
   1213 		if (socket_mtu > 28)
   1214 			{
   1215 			SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
   1216 			SSL_set_mtu(con, socket_mtu - 28);
   1217 			}
   1218 		else
   1219 			/* want to do MTU discovery */
   1220 			BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
   1221 		}
   1222 	else
   1223 		sbio=BIO_new_socket(s,BIO_NOCLOSE);
   1224 
   1225 	if (nbio_test)
   1226 		{
   1227 		BIO *test;
   1228 
   1229 		test=BIO_new(BIO_f_nbio_test());
   1230 		sbio=BIO_push(test,sbio);
   1231 		}
   1232 
   1233 	if (c_debug)
   1234 		{
   1235 		SSL_set_debug(con, 1);
   1236 		BIO_set_callback(sbio,bio_dump_callback);
   1237 		BIO_set_callback_arg(sbio,(char *)bio_c_out);
   1238 		}
   1239 	if (c_msg)
   1240 		{
   1241 		SSL_set_msg_callback(con, msg_cb);
   1242 		SSL_set_msg_callback_arg(con, bio_c_out);
   1243 		}
   1244 #ifndef OPENSSL_NO_TLSEXT
   1245 	if (c_tlsextdebug)
   1246 		{
   1247 		SSL_set_tlsext_debug_callback(con, tlsext_cb);
   1248 		SSL_set_tlsext_debug_arg(con, bio_c_out);
   1249 		}
   1250 	if (c_status_req)
   1251 		{
   1252 		SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
   1253 		SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
   1254 		SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
   1255 #if 0
   1256 {
   1257 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
   1258 OCSP_RESPID *id = OCSP_RESPID_new();
   1259 id->value.byKey = ASN1_OCTET_STRING_new();
   1260 id->type = V_OCSP_RESPID_KEY;
   1261 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
   1262 sk_OCSP_RESPID_push(ids, id);
   1263 SSL_set_tlsext_status_ids(con, ids);
   1264 }
   1265 #endif
   1266 		}
   1267 #endif
   1268 #ifndef OPENSSL_NO_JPAKE
   1269 	if (jpake_secret)
   1270 		jpake_client_auth(bio_c_out, sbio, jpake_secret);
   1271 #endif
   1272 
   1273 	SSL_set_bio(con,sbio,sbio);
   1274 	SSL_set_connect_state(con);
   1275 
   1276 	/* ok, lets connect */
   1277 	width=SSL_get_fd(con)+1;
   1278 
   1279 	read_tty=1;
   1280 	write_tty=0;
   1281 	tty_on=0;
   1282 	read_ssl=1;
   1283 	write_ssl=1;
   1284 
   1285 	cbuf_len=0;
   1286 	cbuf_off=0;
   1287 	sbuf_len=0;
   1288 	sbuf_off=0;
   1289 
   1290 	/* This is an ugly hack that does a lot of assumptions */
   1291 	/* We do have to handle multi-line responses which may come
   1292  	   in a single packet or not. We therefore have to use
   1293 	   BIO_gets() which does need a buffering BIO. So during
   1294 	   the initial chitchat we do push a buffering BIO into the
   1295 	   chain that is removed again later on to not disturb the
   1296 	   rest of the s_client operation. */
   1297 	if (starttls_proto == PROTO_SMTP)
   1298 		{
   1299 		int foundit=0;
   1300 		BIO *fbio = BIO_new(BIO_f_buffer());
   1301 		BIO_push(fbio, sbio);
   1302 		/* wait for multi-line response to end from SMTP */
   1303 		do
   1304 			{
   1305 			mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
   1306 			}
   1307 		while (mbuf_len>3 && mbuf[3]=='-');
   1308 		/* STARTTLS command requires EHLO... */
   1309 		BIO_printf(fbio,"EHLO openssl.client.net\r\n");
   1310 		(void)BIO_flush(fbio);
   1311 		/* wait for multi-line response to end EHLO SMTP response */
   1312 		do
   1313 			{
   1314 			mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
   1315 			if (strstr(mbuf,"STARTTLS"))
   1316 				foundit=1;
   1317 			}
   1318 		while (mbuf_len>3 && mbuf[3]=='-');
   1319 		(void)BIO_flush(fbio);
   1320 		BIO_pop(fbio);
   1321 		BIO_free(fbio);
   1322 		if (!foundit)
   1323 			BIO_printf(bio_err,
   1324 				   "didn't found starttls in server response,"
   1325 				   " try anyway...\n");
   1326 		BIO_printf(sbio,"STARTTLS\r\n");
   1327 		BIO_read(sbio,sbuf,BUFSIZZ);
   1328 		}
   1329 	else if (starttls_proto == PROTO_POP3)
   1330 		{
   1331 		BIO_read(sbio,mbuf,BUFSIZZ);
   1332 		BIO_printf(sbio,"STLS\r\n");
   1333 		BIO_read(sbio,sbuf,BUFSIZZ);
   1334 		}
   1335 	else if (starttls_proto == PROTO_IMAP)
   1336 		{
   1337 		int foundit=0;
   1338 		BIO *fbio = BIO_new(BIO_f_buffer());
   1339 		BIO_push(fbio, sbio);
   1340 		BIO_gets(fbio,mbuf,BUFSIZZ);
   1341 		/* STARTTLS command requires CAPABILITY... */
   1342 		BIO_printf(fbio,". CAPABILITY\r\n");
   1343 		(void)BIO_flush(fbio);
   1344 		/* wait for multi-line CAPABILITY response */
   1345 		do
   1346 			{
   1347 			mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
   1348 			if (strstr(mbuf,"STARTTLS"))
   1349 				foundit=1;
   1350 			}
   1351 		while (mbuf_len>3 && mbuf[0]!='.');
   1352 		(void)BIO_flush(fbio);
   1353 		BIO_pop(fbio);
   1354 		BIO_free(fbio);
   1355 		if (!foundit)
   1356 			BIO_printf(bio_err,
   1357 				   "didn't found STARTTLS in server response,"
   1358 				   " try anyway...\n");
   1359 		BIO_printf(sbio,". STARTTLS\r\n");
   1360 		BIO_read(sbio,sbuf,BUFSIZZ);
   1361 		}
   1362 	else if (starttls_proto == PROTO_FTP)
   1363 		{
   1364 		BIO *fbio = BIO_new(BIO_f_buffer());
   1365 		BIO_push(fbio, sbio);
   1366 		/* wait for multi-line response to end from FTP */
   1367 		do
   1368 			{
   1369 			mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
   1370 			}
   1371 		while (mbuf_len>3 && mbuf[3]=='-');
   1372 		(void)BIO_flush(fbio);
   1373 		BIO_pop(fbio);
   1374 		BIO_free(fbio);
   1375 		BIO_printf(sbio,"AUTH TLS\r\n");
   1376 		BIO_read(sbio,sbuf,BUFSIZZ);
   1377 		}
   1378 	if (starttls_proto == PROTO_XMPP)
   1379 		{
   1380 		int seen = 0;
   1381 		BIO_printf(sbio,"<stream:stream "
   1382 		    "xmlns:stream='http://etherx.jabber.org/streams' "
   1383 		    "xmlns='jabber:client' to='%s' version='1.0'>", host);
   1384 		seen = BIO_read(sbio,mbuf,BUFSIZZ);
   1385 		mbuf[seen] = 0;
   1386 		while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'"))
   1387 			{
   1388 			if (strstr(mbuf, "/stream:features>"))
   1389 				goto shut;
   1390 			seen = BIO_read(sbio,mbuf,BUFSIZZ);
   1391 			mbuf[seen] = 0;
   1392 			}
   1393 		BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
   1394 		seen = BIO_read(sbio,sbuf,BUFSIZZ);
   1395 		sbuf[seen] = 0;
   1396 		if (!strstr(sbuf, "<proceed"))
   1397 			goto shut;
   1398 		mbuf[0] = 0;
   1399 		}
   1400 
   1401 	for (;;)
   1402 		{
   1403 		FD_ZERO(&readfds);
   1404 		FD_ZERO(&writefds);
   1405 
   1406 		if ((SSL_version(con) == DTLS1_VERSION) &&
   1407 			DTLSv1_get_timeout(con, &timeout))
   1408 			timeoutp = &timeout;
   1409 		else
   1410 			timeoutp = NULL;
   1411 
   1412 		if (SSL_in_init(con) && !SSL_total_renegotiations(con))
   1413 			{
   1414 			in_init=1;
   1415 			tty_on=0;
   1416 			}
   1417 		else
   1418 			{
   1419 			tty_on=1;
   1420 			if (in_init)
   1421 				{
   1422 				in_init=0;
   1423 #if 0 /* This test doesn't really work as intended (needs to be fixed) */
   1424 #ifndef OPENSSL_NO_TLSEXT
   1425 				if (servername != NULL && !SSL_session_reused(con))
   1426 					{
   1427 					BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
   1428 					}
   1429 #endif
   1430 #endif
   1431 				if (sess_out)
   1432 					{
   1433 					BIO *stmp = BIO_new_file(sess_out, "w");
   1434 					if (stmp)
   1435 						{
   1436 						PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
   1437 						BIO_free(stmp);
   1438 						}
   1439 					else
   1440 						BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
   1441 					}
   1442 				print_stuff(bio_c_out,con,full_log);
   1443 				if (full_log > 0) full_log--;
   1444 
   1445 				if (starttls_proto)
   1446 					{
   1447 					BIO_printf(bio_err,"%s",mbuf);
   1448 					/* We don't need to know any more */
   1449 					starttls_proto = PROTO_OFF;
   1450 					}
   1451 
   1452 				if (reconnect)
   1453 					{
   1454 					reconnect--;
   1455 					BIO_printf(bio_c_out,"drop connection and then reconnect\n");
   1456 					SSL_shutdown(con);
   1457 					SSL_set_connect_state(con);
   1458 					SHUTDOWN(SSL_get_fd(con));
   1459 					goto re_start;
   1460 					}
   1461 				}
   1462 			}
   1463 
   1464 		ssl_pending = read_ssl && SSL_pending(con);
   1465 
   1466 		if (!ssl_pending)
   1467 			{
   1468 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
   1469 			if (tty_on)
   1470 				{
   1471 				if (read_tty)  openssl_fdset(fileno(stdin),&readfds);
   1472 				if (write_tty) openssl_fdset(fileno(stdout),&writefds);
   1473 				}
   1474 			if (read_ssl)
   1475 				openssl_fdset(SSL_get_fd(con),&readfds);
   1476 			if (write_ssl)
   1477 				openssl_fdset(SSL_get_fd(con),&writefds);
   1478 #else
   1479 			if(!tty_on || !write_tty) {
   1480 				if (read_ssl)
   1481 					openssl_fdset(SSL_get_fd(con),&readfds);
   1482 				if (write_ssl)
   1483 					openssl_fdset(SSL_get_fd(con),&writefds);
   1484 			}
   1485 #endif
   1486 /*			printf("mode tty(%d %d%d) ssl(%d%d)\n",
   1487 				tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
   1488 
   1489 			/* Note: under VMS with SOCKETSHR the second parameter
   1490 			 * is currently of type (int *) whereas under other
   1491 			 * systems it is (void *) if you don't have a cast it
   1492 			 * will choke the compiler: if you do have a cast then
   1493 			 * you can either go for (int *) or (void *).
   1494 			 */
   1495 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
   1496                         /* Under Windows/DOS we make the assumption that we can
   1497 			 * always write to the tty: therefore if we need to
   1498 			 * write to the tty we just fall through. Otherwise
   1499 			 * we timeout the select every second and see if there
   1500 			 * are any keypresses. Note: this is a hack, in a proper
   1501 			 * Windows application we wouldn't do this.
   1502 			 */
   1503 			i=0;
   1504 			if(!write_tty) {
   1505 				if(read_tty) {
   1506 					tv.tv_sec = 1;
   1507 					tv.tv_usec = 0;
   1508 					i=select(width,(void *)&readfds,(void *)&writefds,
   1509 						 NULL,&tv);
   1510 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
   1511 					if(!i && (!_kbhit() || !read_tty) ) continue;
   1512 #else
   1513 					if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
   1514 #endif
   1515 				} else 	i=select(width,(void *)&readfds,(void *)&writefds,
   1516 					 NULL,timeoutp);
   1517 			}
   1518 #elif defined(OPENSSL_SYS_NETWARE)
   1519 			if(!write_tty) {
   1520 				if(read_tty) {
   1521 					tv.tv_sec = 1;
   1522 					tv.tv_usec = 0;
   1523 					i=select(width,(void *)&readfds,(void *)&writefds,
   1524 						NULL,&tv);
   1525 				} else 	i=select(width,(void *)&readfds,(void *)&writefds,
   1526 					NULL,timeoutp);
   1527 			}
   1528 #elif defined(OPENSSL_SYS_BEOS_R5)
   1529 			/* Under BeOS-R5 the situation is similar to DOS */
   1530 			i=0;
   1531 			stdin_set = 0;
   1532 			(void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
   1533 			if(!write_tty) {
   1534 				if(read_tty) {
   1535 					tv.tv_sec = 1;
   1536 					tv.tv_usec = 0;
   1537 					i=select(width,(void *)&readfds,(void *)&writefds,
   1538 						 NULL,&tv);
   1539 					if (read(fileno(stdin), sbuf, 0) >= 0)
   1540 						stdin_set = 1;
   1541 					if (!i && (stdin_set != 1 || !read_tty))
   1542 						continue;
   1543 				} else 	i=select(width,(void *)&readfds,(void *)&writefds,
   1544 					 NULL,timeoutp);
   1545 			}
   1546 			(void)fcntl(fileno(stdin), F_SETFL, 0);
   1547 #else
   1548 			i=select(width,(void *)&readfds,(void *)&writefds,
   1549 				 NULL,timeoutp);
   1550 #endif
   1551 			if ( i < 0)
   1552 				{
   1553 				BIO_printf(bio_err,"bad select %d\n",
   1554 				get_last_socket_error());
   1555 				goto shut;
   1556 				/* goto end; */
   1557 				}
   1558 			}
   1559 
   1560 		if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
   1561 			{
   1562 			BIO_printf(bio_err,"TIMEOUT occured\n");
   1563 			}
   1564 
   1565 		if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
   1566 			{
   1567 			k=SSL_write(con,&(cbuf[cbuf_off]),
   1568 				(unsigned int)cbuf_len);
   1569 			switch (SSL_get_error(con,k))
   1570 				{
   1571 			case SSL_ERROR_NONE:
   1572 				cbuf_off+=k;
   1573 				cbuf_len-=k;
   1574 				if (k <= 0) goto end;
   1575 				/* we have done a  write(con,NULL,0); */
   1576 				if (cbuf_len <= 0)
   1577 					{
   1578 					read_tty=1;
   1579 					write_ssl=0;
   1580 					}
   1581 				else /* if (cbuf_len > 0) */
   1582 					{
   1583 					read_tty=0;
   1584 					write_ssl=1;
   1585 					}
   1586 				break;
   1587 			case SSL_ERROR_WANT_WRITE:
   1588 				BIO_printf(bio_c_out,"write W BLOCK\n");
   1589 				write_ssl=1;
   1590 				read_tty=0;
   1591 				break;
   1592 			case SSL_ERROR_WANT_READ:
   1593 				BIO_printf(bio_c_out,"write R BLOCK\n");
   1594 				write_tty=0;
   1595 				read_ssl=1;
   1596 				write_ssl=0;
   1597 				break;
   1598 			case SSL_ERROR_WANT_X509_LOOKUP:
   1599 				BIO_printf(bio_c_out,"write X BLOCK\n");
   1600 				break;
   1601 			case SSL_ERROR_ZERO_RETURN:
   1602 				if (cbuf_len != 0)
   1603 					{
   1604 					BIO_printf(bio_c_out,"shutdown\n");
   1605 					ret = 0;
   1606 					goto shut;
   1607 					}
   1608 				else
   1609 					{
   1610 					read_tty=1;
   1611 					write_ssl=0;
   1612 					break;
   1613 					}
   1614 
   1615 			case SSL_ERROR_SYSCALL:
   1616 				if ((k != 0) || (cbuf_len != 0))
   1617 					{
   1618 					BIO_printf(bio_err,"write:errno=%d\n",
   1619 						get_last_socket_error());
   1620 					goto shut;
   1621 					}
   1622 				else
   1623 					{
   1624 					read_tty=1;
   1625 					write_ssl=0;
   1626 					}
   1627 				break;
   1628 			case SSL_ERROR_SSL:
   1629 				ERR_print_errors(bio_err);
   1630 				goto shut;
   1631 				}
   1632 			}
   1633 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
   1634 		/* Assume Windows/DOS/BeOS can always write */
   1635 		else if (!ssl_pending && write_tty)
   1636 #else
   1637 		else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
   1638 #endif
   1639 			{
   1640 #ifdef CHARSET_EBCDIC
   1641 			ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
   1642 #endif
   1643 			i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
   1644 
   1645 			if (i <= 0)
   1646 				{
   1647 				BIO_printf(bio_c_out,"DONE\n");
   1648 				ret = 0;
   1649 				goto shut;
   1650 				/* goto end; */
   1651 				}
   1652 
   1653 			sbuf_len-=i;;
   1654 			sbuf_off+=i;
   1655 			if (sbuf_len <= 0)
   1656 				{
   1657 				read_ssl=1;
   1658 				write_tty=0;
   1659 				}
   1660 			}
   1661 		else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
   1662 			{
   1663 #ifdef RENEG
   1664 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
   1665 #endif
   1666 #if 1
   1667 			k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
   1668 #else
   1669 /* Demo for pending and peek :-) */
   1670 			k=SSL_read(con,sbuf,16);
   1671 { char zbuf[10240];
   1672 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
   1673 }
   1674 #endif
   1675 
   1676 			switch (SSL_get_error(con,k))
   1677 				{
   1678 			case SSL_ERROR_NONE:
   1679 				if (k <= 0)
   1680 					goto end;
   1681 				sbuf_off=0;
   1682 				sbuf_len=k;
   1683 
   1684 				read_ssl=0;
   1685 				write_tty=1;
   1686 				break;
   1687 			case SSL_ERROR_WANT_WRITE:
   1688 				BIO_printf(bio_c_out,"read W BLOCK\n");
   1689 				write_ssl=1;
   1690 				read_tty=0;
   1691 				break;
   1692 			case SSL_ERROR_WANT_READ:
   1693 				BIO_printf(bio_c_out,"read R BLOCK\n");
   1694 				write_tty=0;
   1695 				read_ssl=1;
   1696 				if ((read_tty == 0) && (write_ssl == 0))
   1697 					write_ssl=1;
   1698 				break;
   1699 			case SSL_ERROR_WANT_X509_LOOKUP:
   1700 				BIO_printf(bio_c_out,"read X BLOCK\n");
   1701 				break;
   1702 			case SSL_ERROR_SYSCALL:
   1703 				ret=get_last_socket_error();
   1704 				BIO_printf(bio_err,"read:errno=%d\n",ret);
   1705 				goto shut;
   1706 			case SSL_ERROR_ZERO_RETURN:
   1707 				BIO_printf(bio_c_out,"closed\n");
   1708 				ret=0;
   1709 				goto shut;
   1710 			case SSL_ERROR_SSL:
   1711 				ERR_print_errors(bio_err);
   1712 				goto shut;
   1713 				/* break; */
   1714 				}
   1715 			}
   1716 
   1717 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
   1718 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
   1719 		else if (_kbhit())
   1720 #else
   1721 		else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
   1722 #endif
   1723 #elif defined (OPENSSL_SYS_NETWARE)
   1724 		else if (_kbhit())
   1725 #elif defined(OPENSSL_SYS_BEOS_R5)
   1726 		else if (stdin_set)
   1727 #else
   1728 		else if (FD_ISSET(fileno(stdin),&readfds))
   1729 #endif
   1730 			{
   1731 			if (crlf)
   1732 				{
   1733 				int j, lf_num;
   1734 
   1735 				i=raw_read_stdin(cbuf,BUFSIZZ/2);
   1736 				lf_num = 0;
   1737 				/* both loops are skipped when i <= 0 */
   1738 				for (j = 0; j < i; j++)
   1739 					if (cbuf[j] == '\n')
   1740 						lf_num++;
   1741 				for (j = i-1; j >= 0; j--)
   1742 					{
   1743 					cbuf[j+lf_num] = cbuf[j];
   1744 					if (cbuf[j] == '\n')
   1745 						{
   1746 						lf_num--;
   1747 						i++;
   1748 						cbuf[j+lf_num] = '\r';
   1749 						}
   1750 					}
   1751 				assert(lf_num == 0);
   1752 				}
   1753 			else
   1754 				i=raw_read_stdin(cbuf,BUFSIZZ);
   1755 
   1756 			if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
   1757 				{
   1758 				BIO_printf(bio_err,"DONE\n");
   1759 				ret=0;
   1760 				goto shut;
   1761 				}
   1762 
   1763 			if ((!c_ign_eof) && (cbuf[0] == 'R'))
   1764 				{
   1765 				BIO_printf(bio_err,"RENEGOTIATING\n");
   1766 				SSL_renegotiate(con);
   1767 				cbuf_len=0;
   1768 				}
   1769 			else
   1770 				{
   1771 				cbuf_len=i;
   1772 				cbuf_off=0;
   1773 #ifdef CHARSET_EBCDIC
   1774 				ebcdic2ascii(cbuf, cbuf, i);
   1775 #endif
   1776 				}
   1777 
   1778 			write_ssl=1;
   1779 			read_tty=0;
   1780 			}
   1781 		}
   1782 
   1783 	ret=0;
   1784 shut:
   1785 	if (in_init)
   1786 		print_stuff(bio_c_out,con,full_log);
   1787 	SSL_shutdown(con);
   1788 	SHUTDOWN(SSL_get_fd(con));
   1789 end:
   1790 	if (con != NULL)
   1791 		{
   1792 		if (prexit != 0)
   1793 			print_stuff(bio_c_out,con,1);
   1794 		SSL_free(con);
   1795 		}
   1796 	if (ctx != NULL) SSL_CTX_free(ctx);
   1797 	if (cert)
   1798 		X509_free(cert);
   1799 	if (key)
   1800 		EVP_PKEY_free(key);
   1801 	if (pass)
   1802 		OPENSSL_free(pass);
   1803 	if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
   1804 	if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
   1805 	if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
   1806 	if (bio_c_out != NULL)
   1807 		{
   1808 		BIO_free(bio_c_out);
   1809 		bio_c_out=NULL;
   1810 		}
   1811 	apps_shutdown();
   1812 	OPENSSL_EXIT(ret);
   1813 	}
   1814 
   1815 
   1816 static void print_stuff(BIO *bio, SSL *s, int full)
   1817 	{
   1818 	X509 *peer=NULL;
   1819 	char *p;
   1820 	static const char *space="                ";
   1821 	char buf[BUFSIZ];
   1822 	STACK_OF(X509) *sk;
   1823 	STACK_OF(X509_NAME) *sk2;
   1824 	const SSL_CIPHER *c;
   1825 	X509_NAME *xn;
   1826 	int j,i;
   1827 #ifndef OPENSSL_NO_COMP
   1828 	const COMP_METHOD *comp, *expansion;
   1829 #endif
   1830 
   1831 	if (full)
   1832 		{
   1833 		int got_a_chain = 0;
   1834 
   1835 		sk=SSL_get_peer_cert_chain(s);
   1836 		if (sk != NULL)
   1837 			{
   1838 			got_a_chain = 1; /* we don't have it for SSL2 (yet) */
   1839 
   1840 			BIO_printf(bio,"---\nCertificate chain\n");
   1841 			for (i=0; i<sk_X509_num(sk); i++)
   1842 				{
   1843 				X509_NAME_oneline(X509_get_subject_name(
   1844 					sk_X509_value(sk,i)),buf,sizeof buf);
   1845 				BIO_printf(bio,"%2d s:%s\n",i,buf);
   1846 				X509_NAME_oneline(X509_get_issuer_name(
   1847 					sk_X509_value(sk,i)),buf,sizeof buf);
   1848 				BIO_printf(bio,"   i:%s\n",buf);
   1849 				if (c_showcerts)
   1850 					PEM_write_bio_X509(bio,sk_X509_value(sk,i));
   1851 				}
   1852 			}
   1853 
   1854 		BIO_printf(bio,"---\n");
   1855 		peer=SSL_get_peer_certificate(s);
   1856 		if (peer != NULL)
   1857 			{
   1858 			BIO_printf(bio,"Server certificate\n");
   1859 			if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
   1860 				PEM_write_bio_X509(bio,peer);
   1861 			X509_NAME_oneline(X509_get_subject_name(peer),
   1862 				buf,sizeof buf);
   1863 			BIO_printf(bio,"subject=%s\n",buf);
   1864 			X509_NAME_oneline(X509_get_issuer_name(peer),
   1865 				buf,sizeof buf);
   1866 			BIO_printf(bio,"issuer=%s\n",buf);
   1867 			}
   1868 		else
   1869 			BIO_printf(bio,"no peer certificate available\n");
   1870 
   1871 		sk2=SSL_get_client_CA_list(s);
   1872 		if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
   1873 			{
   1874 			BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
   1875 			for (i=0; i<sk_X509_NAME_num(sk2); i++)
   1876 				{
   1877 				xn=sk_X509_NAME_value(sk2,i);
   1878 				X509_NAME_oneline(xn,buf,sizeof(buf));
   1879 				BIO_write(bio,buf,strlen(buf));
   1880 				BIO_write(bio,"\n",1);
   1881 				}
   1882 			}
   1883 		else
   1884 			{
   1885 			BIO_printf(bio,"---\nNo client certificate CA names sent\n");
   1886 			}
   1887 		p=SSL_get_shared_ciphers(s,buf,sizeof buf);
   1888 		if (p != NULL)
   1889 			{
   1890 			/* This works only for SSL 2.  In later protocol
   1891 			 * versions, the client does not know what other
   1892 			 * ciphers (in addition to the one to be used
   1893 			 * in the current connection) the server supports. */
   1894 
   1895 			BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
   1896 			j=i=0;
   1897 			while (*p)
   1898 				{
   1899 				if (*p == ':')
   1900 					{
   1901 					BIO_write(bio,space,15-j%25);
   1902 					i++;
   1903 					j=0;
   1904 					BIO_write(bio,((i%3)?" ":"\n"),1);
   1905 					}
   1906 				else
   1907 					{
   1908 					BIO_write(bio,p,1);
   1909 					j++;
   1910 					}
   1911 				p++;
   1912 				}
   1913 			BIO_write(bio,"\n",1);
   1914 			}
   1915 
   1916 		BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
   1917 			BIO_number_read(SSL_get_rbio(s)),
   1918 			BIO_number_written(SSL_get_wbio(s)));
   1919 		}
   1920 	BIO_printf(bio,(SSL_cache_hit(s)?"---\nReused, ":"---\nNew, "));
   1921 	c=SSL_get_current_cipher(s);
   1922 	BIO_printf(bio,"%s, Cipher is %s\n",
   1923 		SSL_CIPHER_get_version(c),
   1924 		SSL_CIPHER_get_name(c));
   1925 	if (peer != NULL) {
   1926 		EVP_PKEY *pktmp;
   1927 		pktmp = X509_get_pubkey(peer);
   1928 		BIO_printf(bio,"Server public key is %d bit\n",
   1929 							 EVP_PKEY_bits(pktmp));
   1930 		EVP_PKEY_free(pktmp);
   1931 	}
   1932 	BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
   1933 			SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
   1934 #ifndef OPENSSL_NO_COMP
   1935 	comp=SSL_get_current_compression(s);
   1936 	expansion=SSL_get_current_expansion(s);
   1937 	BIO_printf(bio,"Compression: %s\n",
   1938 		comp ? SSL_COMP_get_name(comp) : "NONE");
   1939 	BIO_printf(bio,"Expansion: %s\n",
   1940 		expansion ? SSL_COMP_get_name(expansion) : "NONE");
   1941 #endif
   1942 
   1943 #ifdef SSL_DEBUG
   1944 	{
   1945 	/* Print out local port of connection: useful for debugging */
   1946 	int sock;
   1947 	struct sockaddr_in ladd;
   1948 	socklen_t ladd_size = sizeof(ladd);
   1949 	sock = SSL_get_fd(s);
   1950 	getsockname(sock, (struct sockaddr *)&ladd, &ladd_size);
   1951 	BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port));
   1952 	}
   1953 #endif
   1954 
   1955 	SSL_SESSION_print(bio,SSL_get_session(s));
   1956 	BIO_printf(bio,"---\n");
   1957 	if (peer != NULL)
   1958 		X509_free(peer);
   1959 	/* flush, or debugging output gets mixed with http response */
   1960 	(void)BIO_flush(bio);
   1961 	}
   1962 
   1963 #ifndef OPENSSL_NO_TLSEXT
   1964 
   1965 static int ocsp_resp_cb(SSL *s, void *arg)
   1966 	{
   1967 	const unsigned char *p;
   1968 	int len;
   1969 	OCSP_RESPONSE *rsp;
   1970 	len = SSL_get_tlsext_status_ocsp_resp(s, &p);
   1971 	BIO_puts(arg, "OCSP response: ");
   1972 	if (!p)
   1973 		{
   1974 		BIO_puts(arg, "no response sent\n");
   1975 		return 1;
   1976 		}
   1977 	rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
   1978 	if (!rsp)
   1979 		{
   1980 		BIO_puts(arg, "response parse error\n");
   1981 		BIO_dump_indent(arg, (char *)p, len, 4);
   1982 		return 0;
   1983 		}
   1984 	BIO_puts(arg, "\n======================================\n");
   1985 	OCSP_RESPONSE_print(arg, rsp, 0);
   1986 	BIO_puts(arg, "======================================\n");
   1987 	OCSP_RESPONSE_free(rsp);
   1988 	return 1;
   1989 	}
   1990 
   1991 #endif
   1992