xref: /freebsd/crypto/openssl/apps/s_server.c (revision 9268022b74279434ed6300244e3f977e56a8ceb5)
1 /* apps/s_server.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) 1998-2006 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@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  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
113  * ECC cipher suite support in OpenSSL originally developed by
114  * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
115  */
116 /* ====================================================================
117  * Copyright 2005 Nokia. All rights reserved.
118  *
119  * The portions of the attached software ("Contribution") is developed by
120  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
121  * license.
122  *
123  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
124  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
125  * support (see RFC 4279) to OpenSSL.
126  *
127  * No patent licenses or other rights except those expressly stated in
128  * the OpenSSL open source license shall be deemed granted or received
129  * expressly, by implication, estoppel, or otherwise.
130  *
131  * No assurances are provided by Nokia that the Contribution does not
132  * infringe the patent or other intellectual property rights of any third
133  * party or that the license provides you with all the necessary rights
134  * to make use of the Contribution.
135  *
136  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
137  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
138  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
139  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
140  * OTHERWISE.
141  */
142 
143 /* Until the key-gen callbacks are modified to use newer prototypes, we allow
144  * deprecated functions for openssl-internal code */
145 #ifdef OPENSSL_NO_DEPRECATED
146 #undef OPENSSL_NO_DEPRECATED
147 #endif
148 
149 #include <assert.h>
150 #include <ctype.h>
151 #include <stdio.h>
152 #include <stdlib.h>
153 #include <string.h>
154 
155 #include <openssl/e_os2.h>
156 #ifdef OPENSSL_NO_STDIO
157 #define APPS_WIN16
158 #endif
159 
160 #if !defined(OPENSSL_SYS_NETWARE)  /* conflicts with winsock2 stuff on netware */
161 #include <sys/types.h>
162 #endif
163 
164 /* With IPv6, it looks like Digital has mixed up the proper order of
165    recursive header file inclusion, resulting in the compiler complaining
166    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
167    is needed to have fileno() declared correctly...  So let's define u_int */
168 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
169 #define __U_INT
170 typedef unsigned int u_int;
171 #endif
172 
173 #include <openssl/lhash.h>
174 #include <openssl/bn.h>
175 #define USE_SOCKETS
176 #include "apps.h"
177 #include <openssl/err.h>
178 #include <openssl/pem.h>
179 #include <openssl/x509.h>
180 #include <openssl/ssl.h>
181 #include <openssl/rand.h>
182 #include <openssl/ocsp.h>
183 #ifndef OPENSSL_NO_DH
184 #include <openssl/dh.h>
185 #endif
186 #ifndef OPENSSL_NO_RSA
187 #include <openssl/rsa.h>
188 #endif
189 #ifndef OPENSSL_NO_SRP
190 #include <openssl/srp.h>
191 #endif
192 #include "s_apps.h"
193 #include "timeouts.h"
194 
195 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
196 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
197 #undef FIONBIO
198 #endif
199 
200 #if defined(OPENSSL_SYS_BEOS_R5)
201 #include <fcntl.h>
202 #endif
203 
204 #ifndef OPENSSL_NO_RSA
205 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
206 #endif
207 static int sv_body(char *hostname, int s, unsigned char *context);
208 static int www_body(char *hostname, int s, unsigned char *context);
209 static void close_accept_socket(void );
210 static void sv_usage(void);
211 static int init_ssl_connection(SSL *s);
212 static void print_stats(BIO *bp,SSL_CTX *ctx);
213 static int generate_session_id(const SSL *ssl, unsigned char *id,
214 				unsigned int *id_len);
215 #ifndef OPENSSL_NO_DH
216 static DH *load_dh_param(const char *dhfile);
217 static DH *get_dh512(void);
218 #endif
219 
220 #ifdef MONOLITH
221 static void s_server_init(void);
222 #endif
223 
224 #ifndef OPENSSL_NO_DH
225 static unsigned char dh512_p[]={
226 	0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
227 	0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
228 	0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
229 	0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
230 	0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
231 	0x47,0x74,0xE8,0x33,
232 	};
233 static unsigned char dh512_g[]={
234 	0x02,
235 	};
236 
237 static DH *get_dh512(void)
238 	{
239 	DH *dh=NULL;
240 
241 	if ((dh=DH_new()) == NULL) return(NULL);
242 	dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
243 	dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
244 	if ((dh->p == NULL) || (dh->g == NULL))
245 		return(NULL);
246 	return(dh);
247 	}
248 #endif
249 
250 
251 /* static int load_CA(SSL_CTX *ctx, char *file);*/
252 
253 #undef BUFSIZZ
254 #define BUFSIZZ	16*1024
255 static int bufsize=BUFSIZZ;
256 static int accept_socket= -1;
257 
258 #define TEST_CERT	"server.pem"
259 #ifndef OPENSSL_NO_TLSEXT
260 #define TEST_CERT2	"server2.pem"
261 #endif
262 #undef PROG
263 #define PROG		s_server_main
264 
265 extern int verify_depth, verify_return_error;
266 
267 static char *cipher=NULL;
268 static int s_server_verify=SSL_VERIFY_NONE;
269 static int s_server_session_id_context = 1; /* anything will do */
270 static const char *s_cert_file=TEST_CERT,*s_key_file=NULL;
271 #ifndef OPENSSL_NO_TLSEXT
272 static const char *s_cert_file2=TEST_CERT2,*s_key_file2=NULL;
273 #endif
274 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
275 #ifdef FIONBIO
276 static int s_nbio=0;
277 #endif
278 static int s_nbio_test=0;
279 int s_crlf=0;
280 static SSL_CTX *ctx=NULL;
281 #ifndef OPENSSL_NO_TLSEXT
282 static SSL_CTX *ctx2=NULL;
283 #endif
284 static int www=0;
285 
286 static BIO *bio_s_out=NULL;
287 static int s_debug=0;
288 #ifndef OPENSSL_NO_TLSEXT
289 static int s_tlsextdebug=0;
290 static int s_tlsextstatus=0;
291 static int cert_status_cb(SSL *s, void *arg);
292 #endif
293 static int s_msg=0;
294 static int s_quiet=0;
295 
296 static char *keymatexportlabel=NULL;
297 static int keymatexportlen=20;
298 
299 static int hack=0;
300 #ifndef OPENSSL_NO_ENGINE
301 static char *engine_id=NULL;
302 #endif
303 static const char *session_id_prefix=NULL;
304 
305 static int enable_timeouts = 0;
306 static long socket_mtu;
307 #ifndef OPENSSL_NO_DTLS1
308 static int cert_chain = 0;
309 #endif
310 
311 
312 #ifndef OPENSSL_NO_PSK
313 static char *psk_identity="Client_identity";
314 char *psk_key=NULL; /* by default PSK is not used */
315 
316 static unsigned int psk_server_cb(SSL *ssl, const char *identity,
317 	unsigned char *psk, unsigned int max_psk_len)
318 	{
319 	unsigned int psk_len = 0;
320 	int ret;
321 	BIGNUM *bn = NULL;
322 
323 	if (s_debug)
324 		BIO_printf(bio_s_out,"psk_server_cb\n");
325 	if (!identity)
326 		{
327 		BIO_printf(bio_err,"Error: client did not send PSK identity\n");
328 		goto out_err;
329 		}
330 	if (s_debug)
331 		BIO_printf(bio_s_out,"identity_len=%d identity=%s\n",
332 			identity ? (int)strlen(identity) : 0, identity);
333 
334 	/* here we could lookup the given identity e.g. from a database */
335   	if (strcmp(identity, psk_identity) != 0)
336 		{
337                 BIO_printf(bio_s_out, "PSK error: client identity not found"
338 			   " (got '%s' expected '%s')\n", identity,
339 			   psk_identity);
340 		goto out_err;
341                 }
342 	if (s_debug)
343 		BIO_printf(bio_s_out, "PSK client identity found\n");
344 
345 	/* convert the PSK key to binary */
346 	ret = BN_hex2bn(&bn, psk_key);
347 	if (!ret)
348 		{
349 		BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
350 		if (bn)
351 			BN_free(bn);
352 		return 0;
353 		}
354 	if (BN_num_bytes(bn) > (int)max_psk_len)
355 		{
356 		BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
357 			max_psk_len, BN_num_bytes(bn));
358 		BN_free(bn);
359 		return 0;
360 		}
361 
362 	ret = BN_bn2bin(bn, psk);
363 	BN_free(bn);
364 
365 	if (ret < 0)
366 		goto out_err;
367 	psk_len = (unsigned int)ret;
368 
369 	if (s_debug)
370 		BIO_printf(bio_s_out, "fetched PSK len=%d\n", psk_len);
371         return psk_len;
372  out_err:
373 	if (s_debug)
374 		BIO_printf(bio_err, "Error in PSK server callback\n");
375 	return 0;
376         }
377 #endif
378 
379 #ifndef OPENSSL_NO_SRP
380 /* This is a context that we pass to callbacks */
381 typedef struct srpsrvparm_st
382 	{
383 	char *login;
384 	SRP_VBASE *vb;
385 	SRP_user_pwd *user;
386 	} srpsrvparm;
387 
388 /* This callback pretends to require some asynchronous logic in order to obtain
389    a verifier. When the callback is called for a new connection we return
390    with a negative value. This will provoke the accept etc to return with
391    an LOOKUP_X509. The main logic of the reinvokes the suspended call
392    (which would normally occur after a worker has finished) and we
393    set the user parameters.
394 */
395 static int MS_CALLBACK ssl_srp_server_param_cb(SSL *s, int *ad, void *arg)
396 	{
397 	srpsrvparm *p = (srpsrvparm *)arg;
398 	if (p->login == NULL && p->user == NULL )
399 		{
400 		p->login = SSL_get_srp_username(s);
401 		BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login);
402 		return (-1) ;
403 		}
404 
405 	if (p->user == NULL)
406 		{
407 		BIO_printf(bio_err, "User %s doesn't exist\n", p->login);
408 		return SSL3_AL_FATAL;
409 		}
410 	if (SSL_set_srp_server_param(s, p->user->N, p->user->g, p->user->s, p->user->v,
411 				     p->user->info) < 0)
412 		{
413 		*ad = SSL_AD_INTERNAL_ERROR;
414 		return SSL3_AL_FATAL;
415 		}
416 	BIO_printf(bio_err, "SRP parameters set: username = \"%s\" info=\"%s\" \n", p->login,p->user->info);
417 	/* need to check whether there are memory leaks */
418 	p->user = NULL;
419 	p->login = NULL;
420 	return SSL_ERROR_NONE;
421 	}
422 
423 #endif
424 
425 #ifdef MONOLITH
426 static void s_server_init(void)
427 	{
428 	accept_socket=-1;
429 	cipher=NULL;
430 	s_server_verify=SSL_VERIFY_NONE;
431 	s_dcert_file=NULL;
432 	s_dkey_file=NULL;
433 	s_cert_file=TEST_CERT;
434 	s_key_file=NULL;
435 #ifndef OPENSSL_NO_TLSEXT
436 	s_cert_file2=TEST_CERT2;
437 	s_key_file2=NULL;
438 	ctx2=NULL;
439 #endif
440 #ifdef FIONBIO
441 	s_nbio=0;
442 #endif
443 	s_nbio_test=0;
444 	ctx=NULL;
445 	www=0;
446 
447 	bio_s_out=NULL;
448 	s_debug=0;
449 	s_msg=0;
450 	s_quiet=0;
451 	hack=0;
452 #ifndef OPENSSL_NO_ENGINE
453 	engine_id=NULL;
454 #endif
455 	}
456 #endif
457 
458 static void sv_usage(void)
459 	{
460 	BIO_printf(bio_err,"usage: s_server [args ...]\n");
461 	BIO_printf(bio_err,"\n");
462 	BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
463 	BIO_printf(bio_err," -context arg  - set session ID context\n");
464 	BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
465 	BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
466 	BIO_printf(bio_err," -verify_return_error - return verification errors\n");
467 	BIO_printf(bio_err," -cert arg     - certificate file to use\n");
468 	BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
469 	BIO_printf(bio_err," -crl_check    - check the peer certificate has not been revoked by its CA.\n" \
470 	                   "                 The CRL(s) are appended to the certificate file\n");
471 	BIO_printf(bio_err," -crl_check_all - check the peer certificate has not been revoked by its CA\n" \
472 	                   "                 or any other CRL in the CA chain. CRL(s) are appened to the\n" \
473 	                   "                 the certificate file.\n");
474 	BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
475 	BIO_printf(bio_err," -key arg      - Private Key file to use, in cert file if\n");
476 	BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
477 	BIO_printf(bio_err," -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
478 	BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
479 	BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
480 	BIO_printf(bio_err," -dcertform x  - second certificate format (PEM or DER) PEM default\n");
481 	BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
482 	BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
483 	BIO_printf(bio_err," -dpass arg    - second private key file pass phrase source\n");
484 	BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
485 	BIO_printf(bio_err,"                 or a default set of parameters is used\n");
486 #ifndef OPENSSL_NO_ECDH
487 	BIO_printf(bio_err," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
488 	                   "                 Use \"openssl ecparam -list_curves\" for all names\n" \
489 	                   "                 (default is nistp256).\n");
490 #endif
491 #ifdef FIONBIO
492 	BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
493 #endif
494 	BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
495 	BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
496 	BIO_printf(bio_err," -debug        - Print more output\n");
497 	BIO_printf(bio_err," -msg          - Show protocol messages\n");
498 	BIO_printf(bio_err," -state        - Print the SSL states\n");
499 	BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
500 	BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
501 	BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
502 	BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
503 	BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
504 	BIO_printf(bio_err," -quiet        - No server output\n");
505 	BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
506 #ifndef OPENSSL_NO_PSK
507 	BIO_printf(bio_err," -psk_hint arg - PSK identity hint to use\n");
508 	BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
509 # ifndef OPENSSL_NO_JPAKE
510 	BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
511 # endif
512 #endif
513 #ifndef OPENSSL_NO_SRP
514 	BIO_printf(bio_err," -srpvfile file      - The verifier file for SRP\n");
515 	BIO_printf(bio_err," -srpuserseed string - A seed string for a default user salt.\n");
516 #endif
517 	BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
518 	BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
519 	BIO_printf(bio_err," -tls1_2       - Just talk TLSv1.2\n");
520 	BIO_printf(bio_err," -tls1_1       - Just talk TLSv1.1\n");
521 	BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
522 	BIO_printf(bio_err," -dtls1        - Just talk DTLSv1\n");
523 	BIO_printf(bio_err," -timeout      - Enable timeouts\n");
524 	BIO_printf(bio_err," -mtu          - Set link layer MTU\n");
525 	BIO_printf(bio_err," -chain        - Read a certificate chain\n");
526 	BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
527 	BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
528 	BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
529 	BIO_printf(bio_err," -no_tls1_1    - Just disable TLSv1.1\n");
530 	BIO_printf(bio_err," -no_tls1_2    - Just disable TLSv1.2\n");
531 #ifndef OPENSSL_NO_DH
532 	BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
533 #endif
534 #ifndef OPENSSL_NO_ECDH
535 	BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
536 #endif
537 	BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
538 	BIO_printf(bio_err," -hack         - workaround for early Netscape code\n");
539 	BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
540 	BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
541 	BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
542         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
543 #ifndef OPENSSL_NO_ENGINE
544 	BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
545 #endif
546 	BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
547 	BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
548 #ifndef OPENSSL_NO_TLSEXT
549 	BIO_printf(bio_err," -servername host - servername for HostName TLS extension\n");
550 	BIO_printf(bio_err," -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
551 	BIO_printf(bio_err," -cert2 arg    - certificate file to use for servername\n");
552 	BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT2);
553 	BIO_printf(bio_err," -key2 arg     - Private Key file to use for servername, in cert file if\n");
554 	BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT2);
555 	BIO_printf(bio_err," -tlsextdebug  - hex dump of all TLS extensions received\n");
556 	BIO_printf(bio_err," -no_ticket    - disable use of RFC4507bis session tickets\n");
557 	BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
558 # ifndef OPENSSL_NO_NEXTPROTONEG
559 	BIO_printf(bio_err," -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
560 # endif
561 # ifndef OPENSSL_NO_SRTP
562         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
563 # endif
564 #endif
565 	BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
566 	BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
567 	BIO_printf(bio_err," -status           - respond to certificate status requests\n");
568 	BIO_printf(bio_err," -status_verbose   - enable status request verbose printout\n");
569 	BIO_printf(bio_err," -status_timeout n - status request responder timeout\n");
570 	BIO_printf(bio_err," -status_url URL   - status request fallback URL\n");
571 	}
572 
573 static int local_argc=0;
574 static char **local_argv;
575 
576 #ifdef CHARSET_EBCDIC
577 static int ebcdic_new(BIO *bi);
578 static int ebcdic_free(BIO *a);
579 static int ebcdic_read(BIO *b, char *out, int outl);
580 static int ebcdic_write(BIO *b, const char *in, int inl);
581 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
582 static int ebcdic_gets(BIO *bp, char *buf, int size);
583 static int ebcdic_puts(BIO *bp, const char *str);
584 
585 #define BIO_TYPE_EBCDIC_FILTER	(18|0x0200)
586 static BIO_METHOD methods_ebcdic=
587 	{
588 	BIO_TYPE_EBCDIC_FILTER,
589 	"EBCDIC/ASCII filter",
590 	ebcdic_write,
591 	ebcdic_read,
592 	ebcdic_puts,
593 	ebcdic_gets,
594 	ebcdic_ctrl,
595 	ebcdic_new,
596 	ebcdic_free,
597 	};
598 
599 typedef struct
600 {
601 	size_t	alloced;
602 	char	buff[1];
603 } EBCDIC_OUTBUFF;
604 
605 BIO_METHOD *BIO_f_ebcdic_filter()
606 {
607 	return(&methods_ebcdic);
608 }
609 
610 static int ebcdic_new(BIO *bi)
611 {
612 	EBCDIC_OUTBUFF *wbuf;
613 
614 	wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
615 	wbuf->alloced = 1024;
616 	wbuf->buff[0] = '\0';
617 
618 	bi->ptr=(char *)wbuf;
619 	bi->init=1;
620 	bi->flags=0;
621 	return(1);
622 }
623 
624 static int ebcdic_free(BIO *a)
625 {
626 	if (a == NULL) return(0);
627 	if (a->ptr != NULL)
628 		OPENSSL_free(a->ptr);
629 	a->ptr=NULL;
630 	a->init=0;
631 	a->flags=0;
632 	return(1);
633 }
634 
635 static int ebcdic_read(BIO *b, char *out, int outl)
636 {
637 	int ret=0;
638 
639 	if (out == NULL || outl == 0) return(0);
640 	if (b->next_bio == NULL) return(0);
641 
642 	ret=BIO_read(b->next_bio,out,outl);
643 	if (ret > 0)
644 		ascii2ebcdic(out,out,ret);
645 	return(ret);
646 }
647 
648 static int ebcdic_write(BIO *b, const char *in, int inl)
649 {
650 	EBCDIC_OUTBUFF *wbuf;
651 	int ret=0;
652 	int num;
653 	unsigned char n;
654 
655 	if ((in == NULL) || (inl <= 0)) return(0);
656 	if (b->next_bio == NULL) return(0);
657 
658 	wbuf=(EBCDIC_OUTBUFF *)b->ptr;
659 
660 	if (inl > (num = wbuf->alloced))
661 	{
662 		num = num + num;  /* double the size */
663 		if (num < inl)
664 			num = inl;
665 		OPENSSL_free(wbuf);
666 		wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
667 
668 		wbuf->alloced = num;
669 		wbuf->buff[0] = '\0';
670 
671 		b->ptr=(char *)wbuf;
672 	}
673 
674 	ebcdic2ascii(wbuf->buff, in, inl);
675 
676 	ret=BIO_write(b->next_bio, wbuf->buff, inl);
677 
678 	return(ret);
679 }
680 
681 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
682 {
683 	long ret;
684 
685 	if (b->next_bio == NULL) return(0);
686 	switch (cmd)
687 	{
688 	case BIO_CTRL_DUP:
689 		ret=0L;
690 		break;
691 	default:
692 		ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
693 		break;
694 	}
695 	return(ret);
696 }
697 
698 static int ebcdic_gets(BIO *bp, char *buf, int size)
699 {
700 	int i, ret=0;
701 	if (bp->next_bio == NULL) return(0);
702 /*	return(BIO_gets(bp->next_bio,buf,size));*/
703 	for (i=0; i<size-1; ++i)
704 	{
705 		ret = ebcdic_read(bp,&buf[i],1);
706 		if (ret <= 0)
707 			break;
708 		else if (buf[i] == '\n')
709 		{
710 			++i;
711 			break;
712 		}
713 	}
714 	if (i < size)
715 		buf[i] = '\0';
716 	return (ret < 0 && i == 0) ? ret : i;
717 }
718 
719 static int ebcdic_puts(BIO *bp, const char *str)
720 {
721 	if (bp->next_bio == NULL) return(0);
722 	return ebcdic_write(bp, str, strlen(str));
723 }
724 #endif
725 
726 #ifndef OPENSSL_NO_TLSEXT
727 
728 /* This is a context that we pass to callbacks */
729 typedef struct tlsextctx_st {
730    char * servername;
731    BIO * biodebug;
732    int extension_error;
733 } tlsextctx;
734 
735 
736 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
737 	{
738 	tlsextctx * p = (tlsextctx *) arg;
739 	const char * servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
740         if (servername && p->biodebug)
741 		BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
742 
743 	if (!p->servername)
744 		return SSL_TLSEXT_ERR_NOACK;
745 
746 	if (servername)
747 		{
748     		if (strcasecmp(servername,p->servername))
749 			return p->extension_error;
750 		if (ctx2)
751 			{
752 			BIO_printf(p->biodebug,"Switching server context.\n");
753 			SSL_set_SSL_CTX(s,ctx2);
754 			}
755 		}
756 	return SSL_TLSEXT_ERR_OK;
757 }
758 
759 /* Structure passed to cert status callback */
760 
761 typedef struct tlsextstatusctx_st {
762    /* Default responder to use */
763    char *host, *path, *port;
764    int use_ssl;
765    int timeout;
766    BIO *err;
767    int verbose;
768 } tlsextstatusctx;
769 
770 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0};
771 
772 /* Certificate Status callback. This is called when a client includes a
773  * certificate status request extension.
774  *
775  * This is a simplified version. It examines certificates each time and
776  * makes one OCSP responder query for each request.
777  *
778  * A full version would store details such as the OCSP certificate IDs and
779  * minimise the number of OCSP responses by caching them until they were
780  * considered "expired".
781  */
782 
783 static int cert_status_cb(SSL *s, void *arg)
784 	{
785 	tlsextstatusctx *srctx = arg;
786 	BIO *err = srctx->err;
787 	char *host, *port, *path;
788 	int use_ssl;
789 	unsigned char *rspder = NULL;
790 	int rspderlen;
791 	STACK_OF(OPENSSL_STRING) *aia = NULL;
792 	X509 *x = NULL;
793 	X509_STORE_CTX inctx;
794 	X509_OBJECT obj;
795 	OCSP_REQUEST *req = NULL;
796 	OCSP_RESPONSE *resp = NULL;
797 	OCSP_CERTID *id = NULL;
798 	STACK_OF(X509_EXTENSION) *exts;
799 	int ret = SSL_TLSEXT_ERR_NOACK;
800 	int i;
801 #if 0
802 STACK_OF(OCSP_RESPID) *ids;
803 SSL_get_tlsext_status_ids(s, &ids);
804 BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
805 #endif
806 	if (srctx->verbose)
807 		BIO_puts(err, "cert_status: callback called\n");
808 	/* Build up OCSP query from server certificate */
809 	x = SSL_get_certificate(s);
810 	aia = X509_get1_ocsp(x);
811 	if (aia)
812 		{
813 		if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
814 			&host, &port, &path, &use_ssl))
815 			{
816 			BIO_puts(err, "cert_status: can't parse AIA URL\n");
817 			goto err;
818 			}
819 		if (srctx->verbose)
820 			BIO_printf(err, "cert_status: AIA URL: %s\n",
821 					sk_OPENSSL_STRING_value(aia, 0));
822 		}
823 	else
824 		{
825 		if (!srctx->host)
826 			{
827 			BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
828 			goto done;
829 			}
830 		host = srctx->host;
831 		path = srctx->path;
832 		port = srctx->port;
833 		use_ssl = srctx->use_ssl;
834 		}
835 
836 	if (!X509_STORE_CTX_init(&inctx,
837 				SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
838 				NULL, NULL))
839 		goto err;
840 	if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
841 				X509_get_issuer_name(x),&obj) <= 0)
842 		{
843 		BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
844 		X509_STORE_CTX_cleanup(&inctx);
845 		goto done;
846 		}
847 	req = OCSP_REQUEST_new();
848 	if (!req)
849 		goto err;
850 	id = OCSP_cert_to_id(NULL, x, obj.data.x509);
851 	X509_free(obj.data.x509);
852 	X509_STORE_CTX_cleanup(&inctx);
853 	if (!id)
854 		goto err;
855 	if (!OCSP_request_add0_id(req, id))
856 		goto err;
857 	id = NULL;
858 	/* Add any extensions to the request */
859 	SSL_get_tlsext_status_exts(s, &exts);
860 	for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
861 		{
862 		X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
863 		if (!OCSP_REQUEST_add_ext(req, ext, -1))
864 			goto err;
865 		}
866 	resp = process_responder(err, req, host, path, port, use_ssl, NULL,
867 					srctx->timeout);
868 	if (!resp)
869 		{
870 		BIO_puts(err, "cert_status: error querying responder\n");
871 		goto done;
872 		}
873 	rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
874 	if (rspderlen <= 0)
875 		goto err;
876 	SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
877 	if (srctx->verbose)
878 		{
879 		BIO_puts(err, "cert_status: ocsp response sent:\n");
880 		OCSP_RESPONSE_print(err, resp, 2);
881 		}
882 	ret = SSL_TLSEXT_ERR_OK;
883 	done:
884 	if (ret != SSL_TLSEXT_ERR_OK)
885 		ERR_print_errors(err);
886 	if (aia)
887 		{
888 		OPENSSL_free(host);
889 		OPENSSL_free(path);
890 		OPENSSL_free(port);
891 		X509_email_free(aia);
892 		}
893 	if (id)
894 		OCSP_CERTID_free(id);
895 	if (req)
896 		OCSP_REQUEST_free(req);
897 	if (resp)
898 		OCSP_RESPONSE_free(resp);
899 	return ret;
900 	err:
901 	ret = SSL_TLSEXT_ERR_ALERT_FATAL;
902 	goto done;
903 	}
904 
905 # ifndef OPENSSL_NO_NEXTPROTONEG
906 /* This is the context that we pass to next_proto_cb */
907 typedef struct tlsextnextprotoctx_st {
908 	unsigned char *data;
909 	unsigned int len;
910 } tlsextnextprotoctx;
911 
912 static int next_proto_cb(SSL *s, const unsigned char **data, unsigned int *len, void *arg)
913 	{
914 	tlsextnextprotoctx *next_proto = arg;
915 
916 	*data = next_proto->data;
917 	*len = next_proto->len;
918 
919 	return SSL_TLSEXT_ERR_OK;
920 	}
921 # endif  /* ndef OPENSSL_NO_NEXTPROTONEG */
922 
923 
924 #endif
925 
926 int MAIN(int, char **);
927 
928 #ifndef OPENSSL_NO_JPAKE
929 static char *jpake_secret = NULL;
930 #endif
931 #ifndef OPENSSL_NO_SRP
932 	static srpsrvparm srp_callback_parm;
933 #endif
934 #ifndef OPENSSL_NO_SRTP
935 static char *srtp_profiles = NULL;
936 #endif
937 
938 int MAIN(int argc, char *argv[])
939 	{
940 	X509_VERIFY_PARAM *vpm = NULL;
941 	int badarg = 0;
942 	short port=PORT;
943 	char *CApath=NULL,*CAfile=NULL;
944 	unsigned char *context = NULL;
945 	char *dhfile = NULL;
946 #ifndef OPENSSL_NO_ECDH
947 	char *named_curve = NULL;
948 #endif
949 	int badop=0,bugs=0;
950 	int ret=1;
951 	int off=0;
952 	int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
953 	int state=0;
954 	const SSL_METHOD *meth=NULL;
955 	int socket_type=SOCK_STREAM;
956 	ENGINE *e=NULL;
957 	char *inrand=NULL;
958 	int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
959 	char *passarg = NULL, *pass = NULL;
960 	char *dpassarg = NULL, *dpass = NULL;
961 	int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
962 	X509 *s_cert = NULL, *s_dcert = NULL;
963 	EVP_PKEY *s_key = NULL, *s_dkey = NULL;
964 	int no_cache = 0;
965 #ifndef OPENSSL_NO_TLSEXT
966 	EVP_PKEY *s_key2 = NULL;
967 	X509 *s_cert2 = NULL;
968         tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
969 # ifndef OPENSSL_NO_NEXTPROTONEG
970 	const char *next_proto_neg_in = NULL;
971 	tlsextnextprotoctx next_proto;
972 # endif
973 #endif
974 #ifndef OPENSSL_NO_PSK
975 	/* by default do not send a PSK identity hint */
976 	static char *psk_identity_hint=NULL;
977 #endif
978 #ifndef OPENSSL_NO_SRP
979 	char *srpuserseed = NULL;
980 	char *srp_verifier_file = NULL;
981 #endif
982 	meth=SSLv23_server_method();
983 
984 	local_argc=argc;
985 	local_argv=argv;
986 
987 	apps_startup();
988 #ifdef MONOLITH
989 	s_server_init();
990 #endif
991 
992 	if (bio_err == NULL)
993 		bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
994 
995 	if (!load_config(bio_err, NULL))
996 		goto end;
997 
998 	verify_depth=0;
999 #ifdef FIONBIO
1000 	s_nbio=0;
1001 #endif
1002 	s_nbio_test=0;
1003 
1004 	argc--;
1005 	argv++;
1006 
1007 	while (argc >= 1)
1008 		{
1009 		if	((strcmp(*argv,"-port") == 0) ||
1010 			 (strcmp(*argv,"-accept") == 0))
1011 			{
1012 			if (--argc < 1) goto bad;
1013 			if (!extract_port(*(++argv),&port))
1014 				goto bad;
1015 			}
1016 		else if	(strcmp(*argv,"-verify") == 0)
1017 			{
1018 			s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
1019 			if (--argc < 1) goto bad;
1020 			verify_depth=atoi(*(++argv));
1021 			BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
1022 			}
1023 		else if	(strcmp(*argv,"-Verify") == 0)
1024 			{
1025 			s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
1026 				SSL_VERIFY_CLIENT_ONCE;
1027 			if (--argc < 1) goto bad;
1028 			verify_depth=atoi(*(++argv));
1029 			BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
1030 			}
1031 		else if	(strcmp(*argv,"-context") == 0)
1032 			{
1033 			if (--argc < 1) goto bad;
1034 			context= (unsigned char *)*(++argv);
1035 			}
1036 		else if	(strcmp(*argv,"-cert") == 0)
1037 			{
1038 			if (--argc < 1) goto bad;
1039 			s_cert_file= *(++argv);
1040 			}
1041 		else if	(strcmp(*argv,"-certform") == 0)
1042 			{
1043 			if (--argc < 1) goto bad;
1044 			s_cert_format = str2fmt(*(++argv));
1045 			}
1046 		else if	(strcmp(*argv,"-key") == 0)
1047 			{
1048 			if (--argc < 1) goto bad;
1049 			s_key_file= *(++argv);
1050 			}
1051 		else if	(strcmp(*argv,"-keyform") == 0)
1052 			{
1053 			if (--argc < 1) goto bad;
1054 			s_key_format = str2fmt(*(++argv));
1055 			}
1056 		else if	(strcmp(*argv,"-pass") == 0)
1057 			{
1058 			if (--argc < 1) goto bad;
1059 			passarg = *(++argv);
1060 			}
1061 		else if	(strcmp(*argv,"-dhparam") == 0)
1062 			{
1063 			if (--argc < 1) goto bad;
1064 			dhfile = *(++argv);
1065 			}
1066 #ifndef OPENSSL_NO_ECDH
1067 		else if	(strcmp(*argv,"-named_curve") == 0)
1068 			{
1069 			if (--argc < 1) goto bad;
1070 			named_curve = *(++argv);
1071 			}
1072 #endif
1073 		else if	(strcmp(*argv,"-dcertform") == 0)
1074 			{
1075 			if (--argc < 1) goto bad;
1076 			s_dcert_format = str2fmt(*(++argv));
1077 			}
1078 		else if	(strcmp(*argv,"-dcert") == 0)
1079 			{
1080 			if (--argc < 1) goto bad;
1081 			s_dcert_file= *(++argv);
1082 			}
1083 		else if	(strcmp(*argv,"-dkeyform") == 0)
1084 			{
1085 			if (--argc < 1) goto bad;
1086 			s_dkey_format = str2fmt(*(++argv));
1087 			}
1088 		else if	(strcmp(*argv,"-dpass") == 0)
1089 			{
1090 			if (--argc < 1) goto bad;
1091 			dpassarg = *(++argv);
1092 			}
1093 		else if	(strcmp(*argv,"-dkey") == 0)
1094 			{
1095 			if (--argc < 1) goto bad;
1096 			s_dkey_file= *(++argv);
1097 			}
1098 		else if (strcmp(*argv,"-nocert") == 0)
1099 			{
1100 			nocert=1;
1101 			}
1102 		else if	(strcmp(*argv,"-CApath") == 0)
1103 			{
1104 			if (--argc < 1) goto bad;
1105 			CApath= *(++argv);
1106 			}
1107 		else if (strcmp(*argv,"-no_cache") == 0)
1108 			no_cache = 1;
1109 		else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
1110 			{
1111 			if (badarg)
1112 				goto bad;
1113 			continue;
1114 			}
1115 		else if (strcmp(*argv,"-verify_return_error") == 0)
1116 			verify_return_error = 1;
1117 		else if	(strcmp(*argv,"-serverpref") == 0)
1118 			{ off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
1119 		else if (strcmp(*argv,"-legacy_renegotiation") == 0)
1120 			off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
1121 		else if	(strcmp(*argv,"-cipher") == 0)
1122 			{
1123 			if (--argc < 1) goto bad;
1124 			cipher= *(++argv);
1125 			}
1126 		else if	(strcmp(*argv,"-CAfile") == 0)
1127 			{
1128 			if (--argc < 1) goto bad;
1129 			CAfile= *(++argv);
1130 			}
1131 #ifdef FIONBIO
1132 		else if	(strcmp(*argv,"-nbio") == 0)
1133 			{ s_nbio=1; }
1134 #endif
1135 		else if	(strcmp(*argv,"-nbio_test") == 0)
1136 			{
1137 #ifdef FIONBIO
1138 			s_nbio=1;
1139 #endif
1140 			s_nbio_test=1;
1141 			}
1142 		else if	(strcmp(*argv,"-debug") == 0)
1143 			{ s_debug=1; }
1144 #ifndef OPENSSL_NO_TLSEXT
1145 		else if	(strcmp(*argv,"-tlsextdebug") == 0)
1146 			s_tlsextdebug=1;
1147 		else if	(strcmp(*argv,"-status") == 0)
1148 			s_tlsextstatus=1;
1149 		else if	(strcmp(*argv,"-status_verbose") == 0)
1150 			{
1151 			s_tlsextstatus=1;
1152 			tlscstatp.verbose = 1;
1153 			}
1154 		else if (!strcmp(*argv, "-status_timeout"))
1155 			{
1156 			s_tlsextstatus=1;
1157                         if (--argc < 1) goto bad;
1158 			tlscstatp.timeout = atoi(*(++argv));
1159 			}
1160 		else if (!strcmp(*argv, "-status_url"))
1161 			{
1162 			s_tlsextstatus=1;
1163                         if (--argc < 1) goto bad;
1164 			if (!OCSP_parse_url(*(++argv),
1165 					&tlscstatp.host,
1166 					&tlscstatp.port,
1167 					&tlscstatp.path,
1168 					&tlscstatp.use_ssl))
1169 				{
1170 				BIO_printf(bio_err, "Error parsing URL\n");
1171 				goto bad;
1172 				}
1173 			}
1174 #endif
1175 		else if	(strcmp(*argv,"-msg") == 0)
1176 			{ s_msg=1; }
1177 		else if	(strcmp(*argv,"-hack") == 0)
1178 			{ hack=1; }
1179 		else if	(strcmp(*argv,"-state") == 0)
1180 			{ state=1; }
1181 		else if	(strcmp(*argv,"-crlf") == 0)
1182 			{ s_crlf=1; }
1183 		else if	(strcmp(*argv,"-quiet") == 0)
1184 			{ s_quiet=1; }
1185 		else if	(strcmp(*argv,"-bugs") == 0)
1186 			{ bugs=1; }
1187 		else if	(strcmp(*argv,"-no_tmp_rsa") == 0)
1188 			{ no_tmp_rsa=1; }
1189 		else if	(strcmp(*argv,"-no_dhe") == 0)
1190 			{ no_dhe=1; }
1191 		else if	(strcmp(*argv,"-no_ecdhe") == 0)
1192 			{ no_ecdhe=1; }
1193 #ifndef OPENSSL_NO_PSK
1194                 else if (strcmp(*argv,"-psk_hint") == 0)
1195 			{
1196                         if (--argc < 1) goto bad;
1197                         psk_identity_hint= *(++argv);
1198                         }
1199                 else if (strcmp(*argv,"-psk") == 0)
1200 			{
1201 			size_t i;
1202 
1203 			if (--argc < 1) goto bad;
1204 			psk_key=*(++argv);
1205 			for (i=0; i<strlen(psk_key); i++)
1206 				{
1207 				if (isxdigit((unsigned char)psk_key[i]))
1208 					continue;
1209 				BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
1210 				goto bad;
1211 				}
1212 			}
1213 #endif
1214 #ifndef OPENSSL_NO_SRP
1215 		else if (strcmp(*argv, "-srpvfile") == 0)
1216 			{
1217 			if (--argc < 1) goto bad;
1218 			srp_verifier_file = *(++argv);
1219 			meth = TLSv1_server_method();
1220 			}
1221 		else if (strcmp(*argv, "-srpuserseed") == 0)
1222 			{
1223 			if (--argc < 1) goto bad;
1224 			srpuserseed = *(++argv);
1225 			meth = TLSv1_server_method();
1226 			}
1227 #endif
1228 		else if	(strcmp(*argv,"-www") == 0)
1229 			{ www=1; }
1230 		else if	(strcmp(*argv,"-WWW") == 0)
1231 			{ www=2; }
1232 		else if	(strcmp(*argv,"-HTTP") == 0)
1233 			{ www=3; }
1234 		else if	(strcmp(*argv,"-no_ssl2") == 0)
1235 			{ off|=SSL_OP_NO_SSLv2; }
1236 		else if	(strcmp(*argv,"-no_ssl3") == 0)
1237 			{ off|=SSL_OP_NO_SSLv3; }
1238 		else if	(strcmp(*argv,"-no_tls1") == 0)
1239 			{ off|=SSL_OP_NO_TLSv1; }
1240 		else if	(strcmp(*argv,"-no_tls1_1") == 0)
1241 			{ off|=SSL_OP_NO_TLSv1_1; }
1242 		else if	(strcmp(*argv,"-no_tls1_2") == 0)
1243 			{ off|=SSL_OP_NO_TLSv1_2; }
1244 		else if	(strcmp(*argv,"-no_comp") == 0)
1245 			{ off|=SSL_OP_NO_COMPRESSION; }
1246 #ifndef OPENSSL_NO_TLSEXT
1247 		else if	(strcmp(*argv,"-no_ticket") == 0)
1248 			{ off|=SSL_OP_NO_TICKET; }
1249 #endif
1250 #ifndef OPENSSL_NO_SSL2
1251 		else if	(strcmp(*argv,"-ssl2") == 0)
1252 			{ meth=SSLv2_server_method(); }
1253 #endif
1254 #ifndef OPENSSL_NO_SSL3
1255 		else if	(strcmp(*argv,"-ssl3") == 0)
1256 			{ meth=SSLv3_server_method(); }
1257 #endif
1258 #ifndef OPENSSL_NO_TLS1
1259 		else if	(strcmp(*argv,"-tls1") == 0)
1260 			{ meth=TLSv1_server_method(); }
1261 		else if	(strcmp(*argv,"-tls1_1") == 0)
1262 			{ meth=TLSv1_1_server_method(); }
1263 		else if	(strcmp(*argv,"-tls1_2") == 0)
1264 			{ meth=TLSv1_2_server_method(); }
1265 #endif
1266 #ifndef OPENSSL_NO_DTLS1
1267 		else if	(strcmp(*argv,"-dtls1") == 0)
1268 			{
1269 			meth=DTLSv1_server_method();
1270 			socket_type = SOCK_DGRAM;
1271 			}
1272 		else if (strcmp(*argv,"-timeout") == 0)
1273 			enable_timeouts = 1;
1274 		else if (strcmp(*argv,"-mtu") == 0)
1275 			{
1276 			if (--argc < 1) goto bad;
1277 			socket_mtu = atol(*(++argv));
1278 			}
1279 		else if (strcmp(*argv, "-chain") == 0)
1280 			cert_chain = 1;
1281 #endif
1282 		else if (strcmp(*argv, "-id_prefix") == 0)
1283 			{
1284 			if (--argc < 1) goto bad;
1285 			session_id_prefix = *(++argv);
1286 			}
1287 #ifndef OPENSSL_NO_ENGINE
1288 		else if (strcmp(*argv,"-engine") == 0)
1289 			{
1290 			if (--argc < 1) goto bad;
1291 			engine_id= *(++argv);
1292 			}
1293 #endif
1294 		else if (strcmp(*argv,"-rand") == 0)
1295 			{
1296 			if (--argc < 1) goto bad;
1297 			inrand= *(++argv);
1298 			}
1299 #ifndef OPENSSL_NO_TLSEXT
1300 		else if (strcmp(*argv,"-servername") == 0)
1301 			{
1302 			if (--argc < 1) goto bad;
1303 			tlsextcbp.servername= *(++argv);
1304 			}
1305 		else if (strcmp(*argv,"-servername_fatal") == 0)
1306 			{ tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; }
1307 		else if	(strcmp(*argv,"-cert2") == 0)
1308 			{
1309 			if (--argc < 1) goto bad;
1310 			s_cert_file2= *(++argv);
1311 			}
1312 		else if	(strcmp(*argv,"-key2") == 0)
1313 			{
1314 			if (--argc < 1) goto bad;
1315 			s_key_file2= *(++argv);
1316 			}
1317 # ifndef OPENSSL_NO_NEXTPROTONEG
1318 		else if	(strcmp(*argv,"-nextprotoneg") == 0)
1319 			{
1320 			if (--argc < 1) goto bad;
1321 			next_proto_neg_in = *(++argv);
1322 			}
1323 # endif
1324 #endif
1325 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1326 		else if (strcmp(*argv,"-jpake") == 0)
1327 			{
1328 			if (--argc < 1) goto bad;
1329 			jpake_secret = *(++argv);
1330 			}
1331 #endif
1332 #ifndef OPENSSL_NO_SRTP
1333 		else if (strcmp(*argv,"-use_srtp") == 0)
1334 			{
1335 			if (--argc < 1) goto bad;
1336 			srtp_profiles = *(++argv);
1337 			}
1338 #endif
1339 		else if (strcmp(*argv,"-keymatexport") == 0)
1340 			{
1341 			if (--argc < 1) goto bad;
1342 			keymatexportlabel= *(++argv);
1343 			}
1344 		else if (strcmp(*argv,"-keymatexportlen") == 0)
1345 			{
1346 			if (--argc < 1) goto bad;
1347 			keymatexportlen=atoi(*(++argv));
1348 			if (keymatexportlen == 0) goto bad;
1349 			}
1350 		else
1351 			{
1352 			BIO_printf(bio_err,"unknown option %s\n",*argv);
1353 			badop=1;
1354 			break;
1355 			}
1356 		argc--;
1357 		argv++;
1358 		}
1359 	if (badop)
1360 		{
1361 bad:
1362 		sv_usage();
1363 		goto end;
1364 		}
1365 #ifndef OPENSSL_NO_DTLS1
1366 	if (www && socket_type == SOCK_DGRAM)
1367 		{
1368 		BIO_printf(bio_err,
1369 				"Can't use -HTTP, -www or -WWW with DTLS\n");
1370 		goto end;
1371 		}
1372 #endif
1373 
1374 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1375 	if (jpake_secret)
1376 		{
1377 		if (psk_key)
1378 			{
1379 			BIO_printf(bio_err,
1380 				   "Can't use JPAKE and PSK together\n");
1381 			goto end;
1382 			}
1383 		psk_identity = "JPAKE";
1384 		if (cipher)
1385 			{
1386 			BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
1387 			goto end;
1388 			}
1389 		cipher = "PSK";
1390 		}
1391 
1392 #endif
1393 
1394 	SSL_load_error_strings();
1395 	OpenSSL_add_ssl_algorithms();
1396 
1397 #ifndef OPENSSL_NO_ENGINE
1398         e = setup_engine(bio_err, engine_id, 1);
1399 #endif
1400 
1401 	if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
1402 		{
1403 		BIO_printf(bio_err, "Error getting password\n");
1404 		goto end;
1405 		}
1406 
1407 
1408 	if (s_key_file == NULL)
1409 		s_key_file = s_cert_file;
1410 #ifndef OPENSSL_NO_TLSEXT
1411 	if (s_key_file2 == NULL)
1412 		s_key_file2 = s_cert_file2;
1413 #endif
1414 
1415 	if (nocert == 0)
1416 		{
1417 		s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
1418 		       "server certificate private key file");
1419 		if (!s_key)
1420 			{
1421 			ERR_print_errors(bio_err);
1422 			goto end;
1423 			}
1424 
1425 		s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
1426 			NULL, e, "server certificate file");
1427 
1428 		if (!s_cert)
1429 			{
1430 			ERR_print_errors(bio_err);
1431 			goto end;
1432 			}
1433 
1434 #ifndef OPENSSL_NO_TLSEXT
1435 		if (tlsextcbp.servername)
1436 			{
1437 			s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
1438 				"second server certificate private key file");
1439 			if (!s_key2)
1440 				{
1441 				ERR_print_errors(bio_err);
1442 				goto end;
1443 				}
1444 
1445 			s_cert2 = load_cert(bio_err,s_cert_file2,s_cert_format,
1446 				NULL, e, "second server certificate file");
1447 
1448 			if (!s_cert2)
1449 				{
1450 				ERR_print_errors(bio_err);
1451 				goto end;
1452 				}
1453 			}
1454 #endif
1455 		}
1456 
1457 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1458 	if (next_proto_neg_in)
1459 		{
1460 		unsigned short len;
1461 		next_proto.data = next_protos_parse(&len, next_proto_neg_in);
1462 		if (next_proto.data == NULL)
1463 			goto end;
1464 		next_proto.len = len;
1465 		}
1466 	else
1467 		{
1468 		next_proto.data = NULL;
1469 		}
1470 #endif
1471 
1472 
1473 	if (s_dcert_file)
1474 		{
1475 
1476 		if (s_dkey_file == NULL)
1477 			s_dkey_file = s_dcert_file;
1478 
1479 		s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
1480 				0, dpass, e,
1481 			       "second certificate private key file");
1482 		if (!s_dkey)
1483 			{
1484 			ERR_print_errors(bio_err);
1485 			goto end;
1486 			}
1487 
1488 		s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
1489 				NULL, e, "second server certificate file");
1490 
1491 		if (!s_dcert)
1492 			{
1493 			ERR_print_errors(bio_err);
1494 			goto end;
1495 			}
1496 
1497 		}
1498 
1499 	if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1500 		&& !RAND_status())
1501 		{
1502 		BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1503 		}
1504 	if (inrand != NULL)
1505 		BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1506 			app_RAND_load_files(inrand));
1507 
1508 	if (bio_s_out == NULL)
1509 		{
1510 		if (s_quiet && !s_debug && !s_msg)
1511 			{
1512 			bio_s_out=BIO_new(BIO_s_null());
1513 			}
1514 		else
1515 			{
1516 			if (bio_s_out == NULL)
1517 				bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1518 			}
1519 		}
1520 
1521 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
1522 	if (nocert)
1523 #endif
1524 		{
1525 		s_cert_file=NULL;
1526 		s_key_file=NULL;
1527 		s_dcert_file=NULL;
1528 		s_dkey_file=NULL;
1529 #ifndef OPENSSL_NO_TLSEXT
1530 		s_cert_file2=NULL;
1531 		s_key_file2=NULL;
1532 #endif
1533 		}
1534 
1535 	ctx=SSL_CTX_new(meth);
1536 	if (ctx == NULL)
1537 		{
1538 		ERR_print_errors(bio_err);
1539 		goto end;
1540 		}
1541 	if (session_id_prefix)
1542 		{
1543 		if(strlen(session_id_prefix) >= 32)
1544 			BIO_printf(bio_err,
1545 "warning: id_prefix is too long, only one new session will be possible\n");
1546 		else if(strlen(session_id_prefix) >= 16)
1547 			BIO_printf(bio_err,
1548 "warning: id_prefix is too long if you use SSLv2\n");
1549 		if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
1550 			{
1551 			BIO_printf(bio_err,"error setting 'id_prefix'\n");
1552 			ERR_print_errors(bio_err);
1553 			goto end;
1554 			}
1555 		BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1556 		}
1557 	SSL_CTX_set_quiet_shutdown(ctx,1);
1558 	if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
1559 	if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1560 	SSL_CTX_set_options(ctx,off);
1561 	/* DTLS: partial reads end up discarding unread UDP bytes :-(
1562 	 * Setting read ahead solves this problem.
1563 	 */
1564 	if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1565 
1566 	if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1567 	if (no_cache)
1568 		SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1569 	else
1570 		SSL_CTX_sess_set_cache_size(ctx,128);
1571 
1572 #ifndef OPENSSL_NO_SRTP
1573 	if (srtp_profiles != NULL)
1574 		SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1575 #endif
1576 
1577 #if 0
1578 	if (cipher == NULL) cipher=getenv("SSL_CIPHER");
1579 #endif
1580 
1581 #if 0
1582 	if (s_cert_file == NULL)
1583 		{
1584 		BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
1585 		goto end;
1586 		}
1587 #endif
1588 
1589 	if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1590 		(!SSL_CTX_set_default_verify_paths(ctx)))
1591 		{
1592 		/* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1593 		ERR_print_errors(bio_err);
1594 		/* goto end; */
1595 		}
1596 	if (vpm)
1597 		SSL_CTX_set1_param(ctx, vpm);
1598 
1599 #ifndef OPENSSL_NO_TLSEXT
1600 	if (s_cert2)
1601 		{
1602 		ctx2=SSL_CTX_new(meth);
1603 		if (ctx2 == NULL)
1604 			{
1605 			ERR_print_errors(bio_err);
1606 			goto end;
1607 			}
1608 		}
1609 
1610 	if (ctx2)
1611 		{
1612 		BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
1613 
1614 		if (session_id_prefix)
1615 			{
1616 			if(strlen(session_id_prefix) >= 32)
1617 				BIO_printf(bio_err,
1618 					"warning: id_prefix is too long, only one new session will be possible\n");
1619 			else if(strlen(session_id_prefix) >= 16)
1620 				BIO_printf(bio_err,
1621 					"warning: id_prefix is too long if you use SSLv2\n");
1622 			if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
1623 				{
1624 				BIO_printf(bio_err,"error setting 'id_prefix'\n");
1625 				ERR_print_errors(bio_err);
1626 				goto end;
1627 				}
1628 			BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1629 			}
1630 		SSL_CTX_set_quiet_shutdown(ctx2,1);
1631 		if (bugs) SSL_CTX_set_options(ctx2,SSL_OP_ALL);
1632 		if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1633 		SSL_CTX_set_options(ctx2,off);
1634 		/* DTLS: partial reads end up discarding unread UDP bytes :-(
1635 		 * Setting read ahead solves this problem.
1636 		 */
1637 		if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
1638 
1639 		if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
1640 
1641 		if (no_cache)
1642 			SSL_CTX_set_session_cache_mode(ctx2,SSL_SESS_CACHE_OFF);
1643 		else
1644 			SSL_CTX_sess_set_cache_size(ctx2,128);
1645 
1646 		if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
1647 			(!SSL_CTX_set_default_verify_paths(ctx2)))
1648 			{
1649 			ERR_print_errors(bio_err);
1650 			}
1651 		if (vpm)
1652 			SSL_CTX_set1_param(ctx2, vpm);
1653 		}
1654 
1655 # ifndef OPENSSL_NO_NEXTPROTONEG
1656 	if (next_proto.data)
1657 		SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto);
1658 # endif
1659 #endif
1660 
1661 #ifndef OPENSSL_NO_DH
1662 	if (!no_dhe)
1663 		{
1664 		DH *dh=NULL;
1665 
1666 		if (dhfile)
1667 			dh = load_dh_param(dhfile);
1668 		else if (s_cert_file)
1669 			dh = load_dh_param(s_cert_file);
1670 
1671 		if (dh != NULL)
1672 			{
1673 			BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1674 			}
1675 		else
1676 			{
1677 			BIO_printf(bio_s_out,"Using default temp DH parameters\n");
1678 			dh=get_dh512();
1679 			}
1680 		(void)BIO_flush(bio_s_out);
1681 
1682 		SSL_CTX_set_tmp_dh(ctx,dh);
1683 #ifndef OPENSSL_NO_TLSEXT
1684 		if (ctx2)
1685 			{
1686 			if (!dhfile)
1687 				{
1688 				DH *dh2=load_dh_param(s_cert_file2);
1689 				if (dh2 != NULL)
1690 					{
1691 					BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1692 					(void)BIO_flush(bio_s_out);
1693 
1694 					DH_free(dh);
1695 					dh = dh2;
1696 					}
1697 				}
1698 			SSL_CTX_set_tmp_dh(ctx2,dh);
1699 			}
1700 #endif
1701 		DH_free(dh);
1702 		}
1703 #endif
1704 
1705 #ifndef OPENSSL_NO_ECDH
1706 	if (!no_ecdhe)
1707 		{
1708 		EC_KEY *ecdh=NULL;
1709 
1710 		if (named_curve)
1711 			{
1712 			int nid = OBJ_sn2nid(named_curve);
1713 
1714 			if (nid == 0)
1715 				{
1716 				BIO_printf(bio_err, "unknown curve name (%s)\n",
1717 					named_curve);
1718 				goto end;
1719 				}
1720 			ecdh = EC_KEY_new_by_curve_name(nid);
1721 			if (ecdh == NULL)
1722 				{
1723 				BIO_printf(bio_err, "unable to create curve (%s)\n",
1724 					named_curve);
1725 				goto end;
1726 				}
1727 			}
1728 
1729 		if (ecdh != NULL)
1730 			{
1731 			BIO_printf(bio_s_out,"Setting temp ECDH parameters\n");
1732 			}
1733 		else
1734 			{
1735 			BIO_printf(bio_s_out,"Using default temp ECDH parameters\n");
1736 			ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
1737 			if (ecdh == NULL)
1738 				{
1739 				BIO_printf(bio_err, "unable to create curve (nistp256)\n");
1740 				goto end;
1741 				}
1742 			}
1743 		(void)BIO_flush(bio_s_out);
1744 
1745 		SSL_CTX_set_tmp_ecdh(ctx,ecdh);
1746 #ifndef OPENSSL_NO_TLSEXT
1747 		if (ctx2)
1748 			SSL_CTX_set_tmp_ecdh(ctx2,ecdh);
1749 #endif
1750 		EC_KEY_free(ecdh);
1751 		}
1752 #endif
1753 
1754 	if (!set_cert_key_stuff(ctx, s_cert, s_key))
1755 		goto end;
1756 #ifndef OPENSSL_NO_TLSEXT
1757 	if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2))
1758 		goto end;
1759 #endif
1760 	if (s_dcert != NULL)
1761 		{
1762 		if (!set_cert_key_stuff(ctx, s_dcert, s_dkey))
1763 			goto end;
1764 		}
1765 
1766 #ifndef OPENSSL_NO_RSA
1767 #if 1
1768 	if (!no_tmp_rsa)
1769 		{
1770 		SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
1771 #ifndef OPENSSL_NO_TLSEXT
1772 		if (ctx2)
1773 			SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
1774 #endif
1775 		}
1776 #else
1777 	if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
1778 		{
1779 		RSA *rsa;
1780 
1781 		BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
1782 		BIO_flush(bio_s_out);
1783 
1784 		rsa=RSA_generate_key(512,RSA_F4,NULL);
1785 
1786 		if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
1787 			{
1788 			ERR_print_errors(bio_err);
1789 			goto end;
1790 			}
1791 #ifndef OPENSSL_NO_TLSEXT
1792 			if (ctx2)
1793 				{
1794 				if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
1795 					{
1796 					ERR_print_errors(bio_err);
1797 					goto end;
1798 					}
1799 				}
1800 #endif
1801 		RSA_free(rsa);
1802 		BIO_printf(bio_s_out,"\n");
1803 		}
1804 #endif
1805 #endif
1806 
1807 #ifndef OPENSSL_NO_PSK
1808 #ifdef OPENSSL_NO_JPAKE
1809 	if (psk_key != NULL)
1810 #else
1811 	if (psk_key != NULL || jpake_secret)
1812 #endif
1813 		{
1814 		if (s_debug)
1815 			BIO_printf(bio_s_out, "PSK key given or JPAKE in use, setting server callback\n");
1816 		SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
1817 		}
1818 
1819 	if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint))
1820 		{
1821 		BIO_printf(bio_err,"error setting PSK identity hint to context\n");
1822 		ERR_print_errors(bio_err);
1823 		goto end;
1824 		}
1825 #endif
1826 
1827 	if (cipher != NULL)
1828 		{
1829 		if(!SSL_CTX_set_cipher_list(ctx,cipher))
1830 			{
1831 			BIO_printf(bio_err,"error setting cipher list\n");
1832 			ERR_print_errors(bio_err);
1833 			goto end;
1834 			}
1835 #ifndef OPENSSL_NO_TLSEXT
1836 		if (ctx2 && !SSL_CTX_set_cipher_list(ctx2,cipher))
1837 			{
1838 			BIO_printf(bio_err,"error setting cipher list\n");
1839 			ERR_print_errors(bio_err);
1840 			goto end;
1841 			}
1842 #endif
1843 		}
1844 	SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
1845 	SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
1846 		sizeof s_server_session_id_context);
1847 
1848 	/* Set DTLS cookie generation and verification callbacks */
1849 	SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
1850 	SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
1851 
1852 #ifndef OPENSSL_NO_TLSEXT
1853 	if (ctx2)
1854 		{
1855 		SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
1856 		SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
1857 			sizeof s_server_session_id_context);
1858 
1859 		tlsextcbp.biodebug = bio_s_out;
1860 		SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
1861 		SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
1862 		SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1863 		SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1864 		}
1865 #endif
1866 
1867 #ifndef OPENSSL_NO_SRP
1868 	if (srp_verifier_file != NULL)
1869 		{
1870 		srp_callback_parm.vb = SRP_VBASE_new(srpuserseed);
1871 		srp_callback_parm.user = NULL;
1872 		srp_callback_parm.login = NULL;
1873 		if ((ret = SRP_VBASE_init(srp_callback_parm.vb, srp_verifier_file)) != SRP_NO_ERROR)
1874 			{
1875 			BIO_printf(bio_err,
1876 				   "Cannot initialize SRP verifier file \"%s\":ret=%d\n",
1877 				   srp_verifier_file, ret);
1878 				goto end;
1879 			}
1880 		SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE,verify_callback);
1881 		SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm);
1882 		SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
1883 		}
1884 	else
1885 #endif
1886 	if (CAfile != NULL)
1887 		{
1888 		SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
1889 #ifndef OPENSSL_NO_TLSEXT
1890 		if (ctx2)
1891 			SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
1892 #endif
1893 		}
1894 
1895 	BIO_printf(bio_s_out,"ACCEPT\n");
1896 	(void)BIO_flush(bio_s_out);
1897 	if (www)
1898 		do_server(port,socket_type,&accept_socket,www_body, context);
1899 	else
1900 		do_server(port,socket_type,&accept_socket,sv_body, context);
1901 	print_stats(bio_s_out,ctx);
1902 	ret=0;
1903 end:
1904 	if (ctx != NULL) SSL_CTX_free(ctx);
1905 	if (s_cert)
1906 		X509_free(s_cert);
1907 	if (s_dcert)
1908 		X509_free(s_dcert);
1909 	if (s_key)
1910 		EVP_PKEY_free(s_key);
1911 	if (s_dkey)
1912 		EVP_PKEY_free(s_dkey);
1913 	if (pass)
1914 		OPENSSL_free(pass);
1915 	if (dpass)
1916 		OPENSSL_free(dpass);
1917 	if (vpm)
1918 		X509_VERIFY_PARAM_free(vpm);
1919 #ifndef OPENSSL_NO_TLSEXT
1920 	if (tlscstatp.host)
1921 		OPENSSL_free(tlscstatp.host);
1922 	if (tlscstatp.port)
1923 		OPENSSL_free(tlscstatp.port);
1924 	if (tlscstatp.path)
1925 		OPENSSL_free(tlscstatp.path);
1926 	if (ctx2 != NULL) SSL_CTX_free(ctx2);
1927 	if (s_cert2)
1928 		X509_free(s_cert2);
1929 	if (s_key2)
1930 		EVP_PKEY_free(s_key2);
1931 #endif
1932 	if (bio_s_out != NULL)
1933 		{
1934         BIO_free(bio_s_out);
1935 		bio_s_out=NULL;
1936 		}
1937 	apps_shutdown();
1938 	OPENSSL_EXIT(ret);
1939 	}
1940 
1941 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
1942 	{
1943 	BIO_printf(bio,"%4ld items in the session cache\n",
1944 		SSL_CTX_sess_number(ssl_ctx));
1945 	BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
1946 		SSL_CTX_sess_connect(ssl_ctx));
1947 	BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
1948 		SSL_CTX_sess_connect_renegotiate(ssl_ctx));
1949 	BIO_printf(bio,"%4ld client connects that finished\n",
1950 		SSL_CTX_sess_connect_good(ssl_ctx));
1951 	BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
1952 		SSL_CTX_sess_accept(ssl_ctx));
1953 	BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
1954 		SSL_CTX_sess_accept_renegotiate(ssl_ctx));
1955 	BIO_printf(bio,"%4ld server accepts that finished\n",
1956 		SSL_CTX_sess_accept_good(ssl_ctx));
1957 	BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
1958 	BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
1959 	BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
1960 	BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
1961 	BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
1962 		SSL_CTX_sess_cache_full(ssl_ctx),
1963 		SSL_CTX_sess_get_cache_size(ssl_ctx));
1964 	}
1965 
1966 static int sv_body(char *hostname, int s, unsigned char *context)
1967 	{
1968 	char *buf=NULL;
1969 	fd_set readfds;
1970 	int ret=1,width;
1971 	int k,i;
1972 	unsigned long l;
1973 	SSL *con=NULL;
1974 	BIO *sbio;
1975 #ifndef OPENSSL_NO_KRB5
1976 	KSSL_CTX *kctx;
1977 #endif
1978 	struct timeval timeout;
1979 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1980 	struct timeval tv;
1981 #else
1982 	struct timeval *timeoutp;
1983 #endif
1984 
1985 	if ((buf=OPENSSL_malloc(bufsize)) == NULL)
1986 		{
1987 		BIO_printf(bio_err,"out of memory\n");
1988 		goto err;
1989 		}
1990 #ifdef FIONBIO
1991 	if (s_nbio)
1992 		{
1993 		unsigned long sl=1;
1994 
1995 		if (!s_quiet)
1996 			BIO_printf(bio_err,"turning on non blocking io\n");
1997 		if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1998 			ERR_print_errors(bio_err);
1999 		}
2000 #endif
2001 
2002 	if (con == NULL) {
2003 		con=SSL_new(ctx);
2004 #ifndef OPENSSL_NO_TLSEXT
2005 	if (s_tlsextdebug)
2006 		{
2007 		SSL_set_tlsext_debug_callback(con, tlsext_cb);
2008 		SSL_set_tlsext_debug_arg(con, bio_s_out);
2009 		}
2010 	if (s_tlsextstatus)
2011 		{
2012 		SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
2013 		tlscstatp.err = bio_err;
2014 		SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
2015 		}
2016 #endif
2017 #ifndef OPENSSL_NO_KRB5
2018 		if ((kctx = kssl_ctx_new()) != NULL)
2019                         {
2020 			SSL_set0_kssl_ctx(con, kctx);
2021                         kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2022                         kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2023                         }
2024 #endif	/* OPENSSL_NO_KRB5 */
2025 		if(context)
2026 		      SSL_set_session_id_context(con, context,
2027 						 strlen((char *)context));
2028 	}
2029 	SSL_clear(con);
2030 #if 0
2031 #ifdef TLSEXT_TYPE_opaque_prf_input
2032 	SSL_set_tlsext_opaque_prf_input(con, "Test server", 11);
2033 #endif
2034 #endif
2035 
2036 	if (SSL_version(con) == DTLS1_VERSION)
2037 		{
2038 
2039 		sbio=BIO_new_dgram(s,BIO_NOCLOSE);
2040 
2041 		if (enable_timeouts)
2042 			{
2043 			timeout.tv_sec = 0;
2044 			timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2045 			BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2046 
2047 			timeout.tv_sec = 0;
2048 			timeout.tv_usec = DGRAM_SND_TIMEOUT;
2049 			BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2050 			}
2051 
2052 		if (socket_mtu > 28)
2053 			{
2054 			SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2055 			SSL_set_mtu(con, socket_mtu - 28);
2056 			}
2057 		else
2058 			/* want to do MTU discovery */
2059 			BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2060 
2061         /* turn on cookie exchange */
2062         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2063 		}
2064 	else
2065 		sbio=BIO_new_socket(s,BIO_NOCLOSE);
2066 
2067 	if (s_nbio_test)
2068 		{
2069 		BIO *test;
2070 
2071 		test=BIO_new(BIO_f_nbio_test());
2072 		sbio=BIO_push(test,sbio);
2073 		}
2074 #ifndef OPENSSL_NO_JPAKE
2075 	if(jpake_secret)
2076 		jpake_server_auth(bio_s_out, sbio, jpake_secret);
2077 #endif
2078 
2079 	SSL_set_bio(con,sbio,sbio);
2080 	SSL_set_accept_state(con);
2081 	/* SSL_set_fd(con,s); */
2082 
2083 	if (s_debug)
2084 		{
2085 		SSL_set_debug(con, 1);
2086 		BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2087 		BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2088 		}
2089 	if (s_msg)
2090 		{
2091 		SSL_set_msg_callback(con, msg_cb);
2092 		SSL_set_msg_callback_arg(con, bio_s_out);
2093 		}
2094 #ifndef OPENSSL_NO_TLSEXT
2095 	if (s_tlsextdebug)
2096 		{
2097 		SSL_set_tlsext_debug_callback(con, tlsext_cb);
2098 		SSL_set_tlsext_debug_arg(con, bio_s_out);
2099 		}
2100 #endif
2101 
2102 	width=s+1;
2103 	for (;;)
2104 		{
2105 		int read_from_terminal;
2106 		int read_from_sslcon;
2107 
2108 		read_from_terminal = 0;
2109 		read_from_sslcon = SSL_pending(con);
2110 
2111 		if (!read_from_sslcon)
2112 			{
2113 			FD_ZERO(&readfds);
2114 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_BEOS_R5)
2115 			openssl_fdset(fileno(stdin),&readfds);
2116 #endif
2117 			openssl_fdset(s,&readfds);
2118 			/* Note: under VMS with SOCKETSHR the second parameter is
2119 			 * currently of type (int *) whereas under other systems
2120 			 * it is (void *) if you don't have a cast it will choke
2121 			 * the compiler: if you do have a cast then you can either
2122 			 * go for (int *) or (void *).
2123 			 */
2124 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
2125                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
2126 			 * on sockets. As a workaround we timeout the select every
2127 			 * second and check for any keypress. In a proper Windows
2128 			 * application we wouldn't do this because it is inefficient.
2129 			 */
2130 			tv.tv_sec = 1;
2131 			tv.tv_usec = 0;
2132 			i=select(width,(void *)&readfds,NULL,NULL,&tv);
2133 			if((i < 0) || (!i && !_kbhit() ) )continue;
2134 			if(_kbhit())
2135 				read_from_terminal = 1;
2136 #elif defined(OPENSSL_SYS_BEOS_R5)
2137 			/* Under BeOS-R5 the situation is similar to DOS */
2138 			tv.tv_sec = 1;
2139 			tv.tv_usec = 0;
2140 			(void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
2141 			i=select(width,(void *)&readfds,NULL,NULL,&tv);
2142 			if ((i < 0) || (!i && read(fileno(stdin), buf, 0) < 0))
2143 				continue;
2144 			if (read(fileno(stdin), buf, 0) >= 0)
2145 				read_from_terminal = 1;
2146 			(void)fcntl(fileno(stdin), F_SETFL, 0);
2147 #else
2148 			if ((SSL_version(con) == DTLS1_VERSION) &&
2149 				DTLSv1_get_timeout(con, &timeout))
2150 				timeoutp = &timeout;
2151 			else
2152 				timeoutp = NULL;
2153 
2154 			i=select(width,(void *)&readfds,NULL,NULL,timeoutp);
2155 
2156 			if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
2157 				{
2158 				BIO_printf(bio_err,"TIMEOUT occured\n");
2159 				}
2160 
2161 			if (i <= 0) continue;
2162 			if (FD_ISSET(fileno(stdin),&readfds))
2163 				read_from_terminal = 1;
2164 #endif
2165 			if (FD_ISSET(s,&readfds))
2166 				read_from_sslcon = 1;
2167 			}
2168 		if (read_from_terminal)
2169 			{
2170 			if (s_crlf)
2171 				{
2172 				int j, lf_num;
2173 
2174 				i=raw_read_stdin(buf, bufsize/2);
2175 				lf_num = 0;
2176 				/* both loops are skipped when i <= 0 */
2177 				for (j = 0; j < i; j++)
2178 					if (buf[j] == '\n')
2179 						lf_num++;
2180 				for (j = i-1; j >= 0; j--)
2181 					{
2182 					buf[j+lf_num] = buf[j];
2183 					if (buf[j] == '\n')
2184 						{
2185 						lf_num--;
2186 						i++;
2187 						buf[j+lf_num] = '\r';
2188 						}
2189 					}
2190 				assert(lf_num == 0);
2191 				}
2192 			else
2193 				i=raw_read_stdin(buf,bufsize);
2194 			if (!s_quiet)
2195 				{
2196 				if ((i <= 0) || (buf[0] == 'Q'))
2197 					{
2198 					BIO_printf(bio_s_out,"DONE\n");
2199 					SHUTDOWN(s);
2200 					close_accept_socket();
2201 					ret= -11;
2202 					goto err;
2203 					}
2204 				if ((i <= 0) || (buf[0] == 'q'))
2205 					{
2206 					BIO_printf(bio_s_out,"DONE\n");
2207 					if (SSL_version(con) != DTLS1_VERSION)
2208                         SHUTDOWN(s);
2209 	/*				close_accept_socket();
2210 					ret= -11;*/
2211 					goto err;
2212 					}
2213 
2214 #ifndef OPENSSL_NO_HEARTBEATS
2215 				if ((buf[0] == 'B') &&
2216 					((buf[1] == '\n') || (buf[1] == '\r')))
2217 					{
2218 					BIO_printf(bio_err,"HEARTBEATING\n");
2219 					SSL_heartbeat(con);
2220 					i=0;
2221 					continue;
2222 					}
2223 #endif
2224 				if ((buf[0] == 'r') &&
2225 					((buf[1] == '\n') || (buf[1] == '\r')))
2226 					{
2227 					SSL_renegotiate(con);
2228 					i=SSL_do_handshake(con);
2229 					printf("SSL_do_handshake -> %d\n",i);
2230 					i=0; /*13; */
2231 					continue;
2232 					/* strcpy(buf,"server side RE-NEGOTIATE\n"); */
2233 					}
2234 				if ((buf[0] == 'R') &&
2235 					((buf[1] == '\n') || (buf[1] == '\r')))
2236 					{
2237 					SSL_set_verify(con,
2238 						SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2239 					SSL_renegotiate(con);
2240 					i=SSL_do_handshake(con);
2241 					printf("SSL_do_handshake -> %d\n",i);
2242 					i=0; /* 13; */
2243 					continue;
2244 					/* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
2245 					}
2246 				if (buf[0] == 'P')
2247 					{
2248 					static const char *str="Lets print some clear text\n";
2249 					BIO_write(SSL_get_wbio(con),str,strlen(str));
2250 					}
2251 				if (buf[0] == 'S')
2252 					{
2253 					print_stats(bio_s_out,SSL_get_SSL_CTX(con));
2254 					}
2255 				}
2256 #ifdef CHARSET_EBCDIC
2257 			ebcdic2ascii(buf,buf,i);
2258 #endif
2259 			l=k=0;
2260 			for (;;)
2261 				{
2262 				/* should do a select for the write */
2263 #ifdef RENEG
2264 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
2265 #endif
2266 				k=SSL_write(con,&(buf[l]),(unsigned int)i);
2267 #ifndef OPENSSL_NO_SRP
2268 				while (SSL_get_error(con,k) == SSL_ERROR_WANT_X509_LOOKUP)
2269 					{
2270 					BIO_printf(bio_s_out,"LOOKUP renego during write\n");
2271 					srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2272 					if (srp_callback_parm.user)
2273 						BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2274 					else
2275 						BIO_printf(bio_s_out,"LOOKUP not successful\n");
2276 						k=SSL_write(con,&(buf[l]),(unsigned int)i);
2277 					}
2278 #endif
2279 				switch (SSL_get_error(con,k))
2280 					{
2281 				case SSL_ERROR_NONE:
2282 					break;
2283 				case SSL_ERROR_WANT_WRITE:
2284 				case SSL_ERROR_WANT_READ:
2285 				case SSL_ERROR_WANT_X509_LOOKUP:
2286 					BIO_printf(bio_s_out,"Write BLOCK\n");
2287 					break;
2288 				case SSL_ERROR_SYSCALL:
2289 				case SSL_ERROR_SSL:
2290 					BIO_printf(bio_s_out,"ERROR\n");
2291 					ERR_print_errors(bio_err);
2292 					ret=1;
2293 					goto err;
2294 					/* break; */
2295 				case SSL_ERROR_ZERO_RETURN:
2296 					BIO_printf(bio_s_out,"DONE\n");
2297 					ret=1;
2298 					goto err;
2299 					}
2300 				l+=k;
2301 				i-=k;
2302 				if (i <= 0) break;
2303 				}
2304 			}
2305 		if (read_from_sslcon)
2306 			{
2307 			if (!SSL_is_init_finished(con))
2308 				{
2309 				i=init_ssl_connection(con);
2310 
2311 				if (i < 0)
2312 					{
2313 					ret=0;
2314 					goto err;
2315 					}
2316 				else if (i == 0)
2317 					{
2318 					ret=1;
2319 					goto err;
2320 					}
2321 				}
2322 			else
2323 				{
2324 again:
2325 				i=SSL_read(con,(char *)buf,bufsize);
2326 #ifndef OPENSSL_NO_SRP
2327 				while (SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2328 					{
2329 					BIO_printf(bio_s_out,"LOOKUP renego during read\n");
2330 					srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2331 					if (srp_callback_parm.user)
2332 						BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2333 					else
2334 						BIO_printf(bio_s_out,"LOOKUP not successful\n");
2335 					i=SSL_read(con,(char *)buf,bufsize);
2336 					}
2337 #endif
2338 				switch (SSL_get_error(con,i))
2339 					{
2340 				case SSL_ERROR_NONE:
2341 #ifdef CHARSET_EBCDIC
2342 					ascii2ebcdic(buf,buf,i);
2343 #endif
2344 					raw_write_stdout(buf,
2345 						(unsigned int)i);
2346 					if (SSL_pending(con)) goto again;
2347 					break;
2348 				case SSL_ERROR_WANT_WRITE:
2349 				case SSL_ERROR_WANT_READ:
2350 					BIO_printf(bio_s_out,"Read BLOCK\n");
2351 					break;
2352 				case SSL_ERROR_SYSCALL:
2353 				case SSL_ERROR_SSL:
2354 					BIO_printf(bio_s_out,"ERROR\n");
2355 					ERR_print_errors(bio_err);
2356 					ret=1;
2357 					goto err;
2358 				case SSL_ERROR_ZERO_RETURN:
2359 					BIO_printf(bio_s_out,"DONE\n");
2360 					ret=1;
2361 					goto err;
2362 					}
2363 				}
2364 			}
2365 		}
2366 err:
2367 	if (con != NULL)
2368 		{
2369 		BIO_printf(bio_s_out,"shutting down SSL\n");
2370 #if 1
2371 		SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2372 #else
2373 		SSL_shutdown(con);
2374 #endif
2375 		SSL_free(con);
2376 		}
2377 	BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
2378 	if (buf != NULL)
2379 		{
2380 		OPENSSL_cleanse(buf,bufsize);
2381 		OPENSSL_free(buf);
2382 		}
2383 	if (ret >= 0)
2384 		BIO_printf(bio_s_out,"ACCEPT\n");
2385 	return(ret);
2386 	}
2387 
2388 static void close_accept_socket(void)
2389 	{
2390 	BIO_printf(bio_err,"shutdown accept socket\n");
2391 	if (accept_socket >= 0)
2392 		{
2393 		SHUTDOWN2(accept_socket);
2394 		}
2395 	}
2396 
2397 static int init_ssl_connection(SSL *con)
2398 	{
2399 	int i;
2400 	const char *str;
2401 	X509 *peer;
2402 	long verify_error;
2403 	MS_STATIC char buf[BUFSIZ];
2404 #ifndef OPENSSL_NO_KRB5
2405 	char *client_princ;
2406 #endif
2407 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2408 	const unsigned char *next_proto_neg;
2409 	unsigned next_proto_neg_len;
2410 #endif
2411 	unsigned char *exportedkeymat;
2412 
2413 
2414 	i=SSL_accept(con);
2415 #ifndef OPENSSL_NO_SRP
2416 	while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2417 		{
2418 			BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2419 			srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2420 			if (srp_callback_parm.user)
2421 				BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2422 			else
2423 				BIO_printf(bio_s_out,"LOOKUP not successful\n");
2424 			i=SSL_accept(con);
2425 		}
2426 #endif
2427 	if (i <= 0)
2428 		{
2429 		if (BIO_sock_should_retry(i))
2430 			{
2431 			BIO_printf(bio_s_out,"DELAY\n");
2432 			return(1);
2433 			}
2434 
2435 		BIO_printf(bio_err,"ERROR\n");
2436 		verify_error=SSL_get_verify_result(con);
2437 		if (verify_error != X509_V_OK)
2438 			{
2439 			BIO_printf(bio_err,"verify error:%s\n",
2440 				X509_verify_cert_error_string(verify_error));
2441 			}
2442 		else
2443 			ERR_print_errors(bio_err);
2444 		return(0);
2445 		}
2446 
2447 	PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
2448 
2449 	peer=SSL_get_peer_certificate(con);
2450 	if (peer != NULL)
2451 		{
2452 		BIO_printf(bio_s_out,"Client certificate\n");
2453 		PEM_write_bio_X509(bio_s_out,peer);
2454 		X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
2455 		BIO_printf(bio_s_out,"subject=%s\n",buf);
2456 		X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
2457 		BIO_printf(bio_s_out,"issuer=%s\n",buf);
2458 		X509_free(peer);
2459 		}
2460 
2461 	if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
2462 		BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
2463 	str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2464 	BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
2465 
2466 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2467 	SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2468 	if (next_proto_neg)
2469 		{
2470 		BIO_printf(bio_s_out,"NEXTPROTO is ");
2471 		BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2472 		BIO_printf(bio_s_out, "\n");
2473 		}
2474 #endif
2475 #ifndef OPENSSL_NO_SRTP
2476 	{
2477 	SRTP_PROTECTION_PROFILE *srtp_profile
2478 	  = SSL_get_selected_srtp_profile(con);
2479 
2480 	if(srtp_profile)
2481 		BIO_printf(bio_s_out,"SRTP Extension negotiated, profile=%s\n",
2482 			   srtp_profile->name);
2483 	}
2484 #endif
2485 	if (SSL_cache_hit(con)) BIO_printf(bio_s_out,"Reused session-id\n");
2486 	if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
2487 		TLS1_FLAGS_TLS_PADDING_BUG)
2488 		BIO_printf(bio_s_out,
2489 			   "Peer has incorrect TLSv1 block padding\n");
2490 #ifndef OPENSSL_NO_KRB5
2491 	client_princ = kssl_ctx_get0_client_princ(SSL_get0_kssl_ctx(con));
2492 	if (client_princ != NULL)
2493 		{
2494 		BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
2495 								client_princ);
2496 		}
2497 #endif /* OPENSSL_NO_KRB5 */
2498 	BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
2499 		      SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
2500 	if (keymatexportlabel != NULL)
2501 		{
2502 		BIO_printf(bio_s_out, "Keying material exporter:\n");
2503 		BIO_printf(bio_s_out, "    Label: '%s'\n", keymatexportlabel);
2504 		BIO_printf(bio_s_out, "    Length: %i bytes\n",
2505 			   keymatexportlen);
2506 		exportedkeymat = OPENSSL_malloc(keymatexportlen);
2507 		if (exportedkeymat != NULL)
2508 			{
2509 			if (!SSL_export_keying_material(con, exportedkeymat,
2510 						        keymatexportlen,
2511 						        keymatexportlabel,
2512 						        strlen(keymatexportlabel),
2513 						        NULL, 0, 0))
2514 				{
2515 				BIO_printf(bio_s_out, "    Error\n");
2516 				}
2517 			else
2518 				{
2519 				BIO_printf(bio_s_out, "    Keying material: ");
2520 				for (i=0; i<keymatexportlen; i++)
2521 					BIO_printf(bio_s_out, "%02X",
2522 						   exportedkeymat[i]);
2523 				BIO_printf(bio_s_out, "\n");
2524 				}
2525 			OPENSSL_free(exportedkeymat);
2526 			}
2527 		}
2528 
2529 	return(1);
2530 	}
2531 
2532 #ifndef OPENSSL_NO_DH
2533 static DH *load_dh_param(const char *dhfile)
2534 	{
2535 	DH *ret=NULL;
2536 	BIO *bio;
2537 
2538 	if ((bio=BIO_new_file(dhfile,"r")) == NULL)
2539 		goto err;
2540 	ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
2541 err:
2542 	if (bio != NULL) BIO_free(bio);
2543 	return(ret);
2544 	}
2545 #endif
2546 #ifndef OPENSSL_NO_KRB5
2547 	char *client_princ;
2548 #endif
2549 
2550 #if 0
2551 static int load_CA(SSL_CTX *ctx, char *file)
2552 	{
2553 	FILE *in;
2554 	X509 *x=NULL;
2555 
2556 	if ((in=fopen(file,"r")) == NULL)
2557 		return(0);
2558 
2559 	for (;;)
2560 		{
2561 		if (PEM_read_X509(in,&x,NULL) == NULL)
2562 			break;
2563 		SSL_CTX_add_client_CA(ctx,x);
2564 		}
2565 	if (x != NULL) X509_free(x);
2566 	fclose(in);
2567 	return(1);
2568 	}
2569 #endif
2570 
2571 static int www_body(char *hostname, int s, unsigned char *context)
2572 	{
2573 	char *buf=NULL;
2574 	int ret=1;
2575 	int i,j,k,dot;
2576 	SSL *con;
2577 	const SSL_CIPHER *c;
2578 	BIO *io,*ssl_bio,*sbio;
2579 #ifndef OPENSSL_NO_KRB5
2580 	KSSL_CTX *kctx;
2581 #endif
2582 
2583 	buf=OPENSSL_malloc(bufsize);
2584 	if (buf == NULL) return(0);
2585 	io=BIO_new(BIO_f_buffer());
2586 	ssl_bio=BIO_new(BIO_f_ssl());
2587 	if ((io == NULL) || (ssl_bio == NULL)) goto err;
2588 
2589 #ifdef FIONBIO
2590 	if (s_nbio)
2591 		{
2592 		unsigned long sl=1;
2593 
2594 		if (!s_quiet)
2595 			BIO_printf(bio_err,"turning on non blocking io\n");
2596 		if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2597 			ERR_print_errors(bio_err);
2598 		}
2599 #endif
2600 
2601 	/* lets make the output buffer a reasonable size */
2602 	if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
2603 
2604 	if ((con=SSL_new(ctx)) == NULL) goto err;
2605 #ifndef OPENSSL_NO_TLSEXT
2606 		if (s_tlsextdebug)
2607 			{
2608 			SSL_set_tlsext_debug_callback(con, tlsext_cb);
2609 			SSL_set_tlsext_debug_arg(con, bio_s_out);
2610 			}
2611 #endif
2612 #ifndef OPENSSL_NO_KRB5
2613 	if ((kctx = kssl_ctx_new()) != NULL)
2614 		{
2615 		kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2616 		kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2617 		}
2618 #endif	/* OPENSSL_NO_KRB5 */
2619 	if(context) SSL_set_session_id_context(con, context,
2620 					       strlen((char *)context));
2621 
2622 	sbio=BIO_new_socket(s,BIO_NOCLOSE);
2623 	if (s_nbio_test)
2624 		{
2625 		BIO *test;
2626 
2627 		test=BIO_new(BIO_f_nbio_test());
2628 		sbio=BIO_push(test,sbio);
2629 		}
2630 	SSL_set_bio(con,sbio,sbio);
2631 	SSL_set_accept_state(con);
2632 
2633 	/* SSL_set_fd(con,s); */
2634 	BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
2635 	BIO_push(io,ssl_bio);
2636 #ifdef CHARSET_EBCDIC
2637 	io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
2638 #endif
2639 
2640 	if (s_debug)
2641 		{
2642 		SSL_set_debug(con, 1);
2643 		BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2644 		BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2645 		}
2646 	if (s_msg)
2647 		{
2648 		SSL_set_msg_callback(con, msg_cb);
2649 		SSL_set_msg_callback_arg(con, bio_s_out);
2650 		}
2651 
2652 	for (;;)
2653 		{
2654 		if (hack)
2655 			{
2656 			i=SSL_accept(con);
2657 #ifndef OPENSSL_NO_SRP
2658 			while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2659 		{
2660 			BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2661 			srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2662 			if (srp_callback_parm.user)
2663 				BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2664 			else
2665 				BIO_printf(bio_s_out,"LOOKUP not successful\n");
2666 			i=SSL_accept(con);
2667 		}
2668 #endif
2669 			switch (SSL_get_error(con,i))
2670 				{
2671 			case SSL_ERROR_NONE:
2672 				break;
2673 			case SSL_ERROR_WANT_WRITE:
2674 			case SSL_ERROR_WANT_READ:
2675 			case SSL_ERROR_WANT_X509_LOOKUP:
2676 				continue;
2677 			case SSL_ERROR_SYSCALL:
2678 			case SSL_ERROR_SSL:
2679 			case SSL_ERROR_ZERO_RETURN:
2680 				ret=1;
2681 				goto err;
2682 				/* break; */
2683 				}
2684 
2685 			SSL_renegotiate(con);
2686 			SSL_write(con,NULL,0);
2687 			}
2688 
2689 		i=BIO_gets(io,buf,bufsize-1);
2690 		if (i < 0) /* error */
2691 			{
2692 			if (!BIO_should_retry(io))
2693 				{
2694 				if (!s_quiet)
2695 					ERR_print_errors(bio_err);
2696 				goto err;
2697 				}
2698 			else
2699 				{
2700 				BIO_printf(bio_s_out,"read R BLOCK\n");
2701 #if defined(OPENSSL_SYS_NETWARE)
2702             delay(1000);
2703 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
2704 				sleep(1);
2705 #endif
2706 				continue;
2707 				}
2708 			}
2709 		else if (i == 0) /* end of input */
2710 			{
2711 			ret=1;
2712 			goto end;
2713 			}
2714 
2715 		/* else we have data */
2716 		if (	((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
2717 			((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
2718 			{
2719 			char *p;
2720 			X509 *peer;
2721 			STACK_OF(SSL_CIPHER) *sk;
2722 			static const char *space="                          ";
2723 
2724 			BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2725 			BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
2726 			BIO_puts(io,"<pre>\n");
2727 /*			BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
2728 			BIO_puts(io,"\n");
2729 			for (i=0; i<local_argc; i++)
2730 				{
2731 				BIO_puts(io,local_argv[i]);
2732 				BIO_write(io," ",1);
2733 				}
2734 			BIO_puts(io,"\n");
2735 
2736 			BIO_printf(io,
2737 				"Secure Renegotiation IS%s supported\n",
2738 		      		SSL_get_secure_renegotiation_support(con) ?
2739 							"" : " NOT");
2740 
2741 			/* The following is evil and should not really
2742 			 * be done */
2743 			BIO_printf(io,"Ciphers supported in s_server binary\n");
2744 			sk=SSL_get_ciphers(con);
2745 			j=sk_SSL_CIPHER_num(sk);
2746 			for (i=0; i<j; i++)
2747 				{
2748 				c=sk_SSL_CIPHER_value(sk,i);
2749 				BIO_printf(io,"%-11s:%-25s",
2750 					SSL_CIPHER_get_version(c),
2751 					SSL_CIPHER_get_name(c));
2752 				if ((((i+1)%2) == 0) && (i+1 != j))
2753 					BIO_puts(io,"\n");
2754 				}
2755 			BIO_puts(io,"\n");
2756 			p=SSL_get_shared_ciphers(con,buf,bufsize);
2757 			if (p != NULL)
2758 				{
2759 				BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
2760 				j=i=0;
2761 				while (*p)
2762 					{
2763 					if (*p == ':')
2764 						{
2765 						BIO_write(io,space,26-j);
2766 						i++;
2767 						j=0;
2768 						BIO_write(io,((i%3)?" ":"\n"),1);
2769 						}
2770 					else
2771 						{
2772 						BIO_write(io,p,1);
2773 						j++;
2774 						}
2775 					p++;
2776 					}
2777 				BIO_puts(io,"\n");
2778 				}
2779 			BIO_printf(io,(SSL_cache_hit(con)
2780 				?"---\nReused, "
2781 				:"---\nNew, "));
2782 			c=SSL_get_current_cipher(con);
2783 			BIO_printf(io,"%s, Cipher is %s\n",
2784 				SSL_CIPHER_get_version(c),
2785 				SSL_CIPHER_get_name(c));
2786 			SSL_SESSION_print(io,SSL_get_session(con));
2787 			BIO_printf(io,"---\n");
2788 			print_stats(io,SSL_get_SSL_CTX(con));
2789 			BIO_printf(io,"---\n");
2790 			peer=SSL_get_peer_certificate(con);
2791 			if (peer != NULL)
2792 				{
2793 				BIO_printf(io,"Client certificate\n");
2794 				X509_print(io,peer);
2795 				PEM_write_bio_X509(io,peer);
2796 				}
2797 			else
2798 				BIO_puts(io,"no client certificate available\n");
2799 			BIO_puts(io,"</BODY></HTML>\r\n\r\n");
2800 			break;
2801 			}
2802 		else if ((www == 2 || www == 3)
2803                          && (strncmp("GET /",buf,5) == 0))
2804 			{
2805 			BIO *file;
2806 			char *p,*e;
2807 			static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
2808 
2809 			/* skip the '/' */
2810 			p= &(buf[5]);
2811 
2812 			dot = 1;
2813 			for (e=p; *e != '\0'; e++)
2814 				{
2815 				if (e[0] == ' ')
2816 					break;
2817 
2818 				switch (dot)
2819 					{
2820 				case 1:
2821 					dot = (e[0] == '.') ? 2 : 0;
2822 					break;
2823 				case 2:
2824 					dot = (e[0] == '.') ? 3 : 0;
2825 					break;
2826 				case 3:
2827 					dot = (e[0] == '/') ? -1 : 0;
2828 					break;
2829 					}
2830 				if (dot == 0)
2831 					dot = (e[0] == '/') ? 1 : 0;
2832 				}
2833 			dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
2834 
2835 			if (*e == '\0')
2836 				{
2837 				BIO_puts(io,text);
2838 				BIO_printf(io,"'%s' is an invalid file name\r\n",p);
2839 				break;
2840 				}
2841 			*e='\0';
2842 
2843 			if (dot)
2844 				{
2845 				BIO_puts(io,text);
2846 				BIO_printf(io,"'%s' contains '..' reference\r\n",p);
2847 				break;
2848 				}
2849 
2850 			if (*p == '/')
2851 				{
2852 				BIO_puts(io,text);
2853 				BIO_printf(io,"'%s' is an invalid path\r\n",p);
2854 				break;
2855 				}
2856 
2857 #if 0
2858 			/* append if a directory lookup */
2859 			if (e[-1] == '/')
2860 				strcat(p,"index.html");
2861 #endif
2862 
2863 			/* if a directory, do the index thang */
2864 			if (app_isdir(p)>0)
2865 				{
2866 #if 0 /* must check buffer size */
2867 				strcat(p,"/index.html");
2868 #else
2869 				BIO_puts(io,text);
2870 				BIO_printf(io,"'%s' is a directory\r\n",p);
2871 				break;
2872 #endif
2873 				}
2874 
2875 			if ((file=BIO_new_file(p,"r")) == NULL)
2876 				{
2877 				BIO_puts(io,text);
2878 				BIO_printf(io,"Error opening '%s'\r\n",p);
2879 				ERR_print_errors(io);
2880 				break;
2881 				}
2882 
2883 			if (!s_quiet)
2884 				BIO_printf(bio_err,"FILE:%s\n",p);
2885 
2886                         if (www == 2)
2887                                 {
2888                                 i=strlen(p);
2889                                 if (	((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
2890                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
2891                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
2892                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2893                                 else
2894                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
2895                                 }
2896 			/* send the file */
2897 			for (;;)
2898 				{
2899 				i=BIO_read(file,buf,bufsize);
2900 				if (i <= 0) break;
2901 
2902 #ifdef RENEG
2903 				total_bytes+=i;
2904 				fprintf(stderr,"%d\n",i);
2905 				if (total_bytes > 3*1024)
2906 					{
2907 					total_bytes=0;
2908 					fprintf(stderr,"RENEGOTIATE\n");
2909 					SSL_renegotiate(con);
2910 					}
2911 #endif
2912 
2913 				for (j=0; j<i; )
2914 					{
2915 #ifdef RENEG
2916 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
2917 #endif
2918 					k=BIO_write(io,&(buf[j]),i-j);
2919 					if (k <= 0)
2920 						{
2921 						if (!BIO_should_retry(io))
2922 							goto write_error;
2923 						else
2924 							{
2925 							BIO_printf(bio_s_out,"rwrite W BLOCK\n");
2926 							}
2927 						}
2928 					else
2929 						{
2930 						j+=k;
2931 						}
2932 					}
2933 				}
2934 write_error:
2935 			BIO_free(file);
2936 			break;
2937 			}
2938 		}
2939 
2940 	for (;;)
2941 		{
2942 		i=(int)BIO_flush(io);
2943 		if (i <= 0)
2944 			{
2945 			if (!BIO_should_retry(io))
2946 				break;
2947 			}
2948 		else
2949 			break;
2950 		}
2951 end:
2952 #if 1
2953 	/* make sure we re-use sessions */
2954 	SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2955 #else
2956 	/* This kills performance */
2957 /*	SSL_shutdown(con); A shutdown gets sent in the
2958  *	BIO_free_all(io) procession */
2959 #endif
2960 
2961 err:
2962 
2963 	if (ret >= 0)
2964 		BIO_printf(bio_s_out,"ACCEPT\n");
2965 
2966 	if (buf != NULL) OPENSSL_free(buf);
2967 	if (io != NULL) BIO_free_all(io);
2968 /*	if (ssl_bio != NULL) BIO_free(ssl_bio);*/
2969 	return(ret);
2970 	}
2971 
2972 #ifndef OPENSSL_NO_RSA
2973 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
2974 	{
2975 	BIGNUM *bn = NULL;
2976 	static RSA *rsa_tmp=NULL;
2977 
2978 	if (!rsa_tmp && ((bn = BN_new()) == NULL))
2979 		BIO_printf(bio_err,"Allocation error in generating RSA key\n");
2980 	if (!rsa_tmp && bn)
2981 		{
2982 		if (!s_quiet)
2983 			{
2984 			BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
2985 			(void)BIO_flush(bio_err);
2986 			}
2987 		if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
2988 				!RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
2989 			{
2990 			if(rsa_tmp) RSA_free(rsa_tmp);
2991 			rsa_tmp = NULL;
2992 			}
2993 		if (!s_quiet)
2994 			{
2995 			BIO_printf(bio_err,"\n");
2996 			(void)BIO_flush(bio_err);
2997 			}
2998 		BN_free(bn);
2999 		}
3000 	return(rsa_tmp);
3001 	}
3002 #endif
3003 
3004 #define MAX_SESSION_ID_ATTEMPTS 10
3005 static int generate_session_id(const SSL *ssl, unsigned char *id,
3006 				unsigned int *id_len)
3007 	{
3008 	unsigned int count = 0;
3009 	do	{
3010 		RAND_pseudo_bytes(id, *id_len);
3011 		/* Prefix the session_id with the required prefix. NB: If our
3012 		 * prefix is too long, clip it - but there will be worse effects
3013 		 * anyway, eg. the server could only possibly create 1 session
3014 		 * ID (ie. the prefix!) so all future session negotiations will
3015 		 * fail due to conflicts. */
3016 		memcpy(id, session_id_prefix,
3017 			(strlen(session_id_prefix) < *id_len) ?
3018 			strlen(session_id_prefix) : *id_len);
3019 		}
3020 	while(SSL_has_matching_session_id(ssl, id, *id_len) &&
3021 		(++count < MAX_SESSION_ID_ATTEMPTS));
3022 	if(count >= MAX_SESSION_ID_ATTEMPTS)
3023 		return 0;
3024 	return 1;
3025 	}
3026