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468 	BIO_printf(bio_err," -crl_check    - check the peer certificate has not been revoked by its CA.\n" \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470 	BIO_printf(bio_err," -crl_check_all - check the peer certificate has not been revoked by its CA\n" \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