Usage for -hack and -prexit -verify_return_error
[openssl.git] / apps / s_server.c
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 not_resumable_sess_cb(SSL *s, int is_forward_secure);
208 static int sv_body(char *hostname, int s, int stype, unsigned char *context);
209 static int www_body(char *hostname, int s, int stype, unsigned char *context);
210 static int rev_body(char *hostname, int s, int stype, unsigned char *context);
211 static void close_accept_socket(void );
212 static void sv_usage(void);
213 static int init_ssl_connection(SSL *s);
214 static void print_stats(BIO *bp,SSL_CTX *ctx);
215 static int generate_session_id(const SSL *ssl, unsigned char *id,
216                                 unsigned int *id_len);
217 static void init_session_cache_ctx(SSL_CTX *sctx);
218 static void free_sessions(void);
219 #ifndef OPENSSL_NO_DH
220 static DH *load_dh_param(const char *dhfile);
221 #endif
222
223 #ifdef MONOLITH
224 static void s_server_init(void);
225 #endif
226
227 /* static int load_CA(SSL_CTX *ctx, char *file);*/
228
229 #undef BUFSIZZ
230 #define BUFSIZZ 16*1024
231 static int bufsize=BUFSIZZ;
232 static int accept_socket= -1;
233
234 #define TEST_CERT       "server.pem"
235 #ifndef OPENSSL_NO_TLSEXT
236 #define TEST_CERT2      "server2.pem"
237 #endif
238 #undef PROG
239 #define PROG            s_server_main
240
241 extern int verify_depth, verify_return_error, verify_quiet;
242
243 static int s_server_verify=SSL_VERIFY_NONE;
244 static int s_server_session_id_context = 1; /* anything will do */
245 static const char *s_cert_file=TEST_CERT,*s_key_file=NULL, *s_chain_file=NULL;
246 #ifndef OPENSSL_NO_TLSEXT
247 static const char *s_cert_file2=TEST_CERT2,*s_key_file2=NULL;
248 #endif
249 static char *s_dcert_file=NULL,*s_dkey_file=NULL, *s_dchain_file=NULL;
250 #ifdef FIONBIO
251 static int s_nbio=0;
252 #endif
253 static int s_nbio_test=0;
254 int s_crlf=0;
255 static SSL_CTX *ctx=NULL;
256 #ifndef OPENSSL_NO_TLSEXT
257 static SSL_CTX *ctx2=NULL;
258 #endif
259 static int www=0;
260
261 static BIO *bio_s_out=NULL;
262 static BIO *bio_s_msg = NULL;
263 static int s_debug=0;
264 #ifndef OPENSSL_NO_TLSEXT
265 static int s_tlsextdebug=0;
266 static int s_tlsextstatus=0;
267 static int cert_status_cb(SSL *s, void *arg);
268 #endif
269 static int no_resume_ephemeral = 0;
270 static int s_msg=0;
271 static int s_quiet=0;
272 static int s_ign_eof=0;
273 static int s_brief=0;
274
275 static char *keymatexportlabel=NULL;
276 static int keymatexportlen=20;
277
278 static int hack=0;
279 #ifndef OPENSSL_NO_ENGINE
280 static char *engine_id=NULL;
281 #endif
282 static const char *session_id_prefix=NULL;
283
284 static int enable_timeouts = 0;
285 static long socket_mtu;
286 #ifndef OPENSSL_NO_DTLS1
287 static int cert_chain = 0;
288 #endif
289
290 #ifndef OPENSSL_NO_TLSEXT
291 static BIO *serverinfo_in = NULL;
292 static const char *s_serverinfo_file = NULL;
293
294 #endif
295
296 #ifndef OPENSSL_NO_PSK
297 static char *psk_identity="Client_identity";
298 char *psk_key=NULL; /* by default PSK is not used */
299
300 static unsigned int psk_server_cb(SSL *ssl, const char *identity,
301         unsigned char *psk, unsigned int max_psk_len)
302         {
303         unsigned int psk_len = 0;
304         int ret;
305         BIGNUM *bn = NULL;
306
307         if (s_debug)
308                 BIO_printf(bio_s_out,"psk_server_cb\n");
309         if (!identity)
310                 {
311                 BIO_printf(bio_err,"Error: client did not send PSK identity\n");
312                 goto out_err;
313                 }
314         if (s_debug)
315                 BIO_printf(bio_s_out,"identity_len=%d identity=%s\n",
316                         identity ? (int)strlen(identity) : 0, identity);
317
318         /* here we could lookup the given identity e.g. from a database */
319         if (strcmp(identity, psk_identity) != 0)
320                 {
321                 BIO_printf(bio_s_out, "PSK error: client identity not found"
322                            " (got '%s' expected '%s')\n", identity,
323                            psk_identity);
324                 goto out_err;
325                 }
326         if (s_debug)
327                 BIO_printf(bio_s_out, "PSK client identity found\n");
328
329         /* convert the PSK key to binary */
330         ret = BN_hex2bn(&bn, psk_key);
331         if (!ret)
332                 {
333                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
334                 if (bn)
335                         BN_free(bn);
336                 return 0;
337                 }
338         if (BN_num_bytes(bn) > (int)max_psk_len)
339                 {
340                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
341                         max_psk_len, BN_num_bytes(bn));
342                 BN_free(bn);
343                 return 0;
344                 }
345
346         ret = BN_bn2bin(bn, psk);
347         BN_free(bn);
348
349         if (ret < 0)
350                 goto out_err;
351         psk_len = (unsigned int)ret;
352
353         if (s_debug)
354                 BIO_printf(bio_s_out, "fetched PSK len=%d\n", psk_len);
355         return psk_len;
356  out_err:
357         if (s_debug)
358                 BIO_printf(bio_err, "Error in PSK server callback\n");
359         return 0;
360         }
361 #endif
362
363 #ifndef OPENSSL_NO_SRP
364 /* This is a context that we pass to callbacks */
365 typedef struct srpsrvparm_st
366         {
367         char *login;
368         SRP_VBASE *vb;
369         SRP_user_pwd *user;
370         } srpsrvparm;
371
372 /* This callback pretends to require some asynchronous logic in order to obtain
373    a verifier. When the callback is called for a new connection we return
374    with a negative value. This will provoke the accept etc to return with
375    an LOOKUP_X509. The main logic of the reinvokes the suspended call 
376    (which would normally occur after a worker has finished) and we
377    set the user parameters. 
378 */
379 static int MS_CALLBACK ssl_srp_server_param_cb(SSL *s, int *ad, void *arg)
380         {
381         srpsrvparm *p = (srpsrvparm *)arg;
382         if (p->login == NULL && p->user == NULL )
383                 {
384                 p->login = SSL_get_srp_username(s);
385                 BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login);
386                 return (-1) ;
387                 }
388
389         if (p->user == NULL)
390                 {
391                 BIO_printf(bio_err, "User %s doesn't exist\n", p->login);
392                 return SSL3_AL_FATAL;
393                 }
394         if (SSL_set_srp_server_param(s, p->user->N, p->user->g, p->user->s, p->user->v,
395                                      p->user->info) < 0)
396                 {
397                 *ad = SSL_AD_INTERNAL_ERROR;
398                 return SSL3_AL_FATAL;
399                 }
400         BIO_printf(bio_err, "SRP parameters set: username = \"%s\" info=\"%s\" \n", p->login,p->user->info);
401         /* need to check whether there are memory leaks */
402         p->user = NULL;
403         p->login = NULL;
404         return SSL_ERROR_NONE;
405         }
406
407 #endif
408
409 #ifdef MONOLITH
410 static void s_server_init(void)
411         {
412         accept_socket=-1;
413         s_server_verify=SSL_VERIFY_NONE;
414         s_dcert_file=NULL;
415         s_dkey_file=NULL;
416         s_dchain_file=NULL;
417         s_cert_file=TEST_CERT;
418         s_key_file=NULL;
419         s_chain_file=NULL;
420 #ifndef OPENSSL_NO_TLSEXT
421         s_cert_file2=TEST_CERT2;
422         s_key_file2=NULL;
423         ctx2=NULL;
424 #endif
425 #ifdef FIONBIO
426         s_nbio=0;
427 #endif
428         s_nbio_test=0;
429         ctx=NULL;
430         www=0;
431
432         bio_s_out=NULL;
433         s_debug=0;
434         s_msg=0;
435         s_quiet=0;
436         s_brief=0;
437         hack=0;
438 #ifndef OPENSSL_NO_ENGINE
439         engine_id=NULL;
440 #endif
441         }
442 #endif
443
444 static void sv_usage(void)
445         {
446         BIO_printf(bio_err,"usage: s_server [args ...]\n");
447         BIO_printf(bio_err,"\n");
448         BIO_printf(bio_err," -accept port  - TCP/IP port to accept on (default is %d)\n",PORT);
449         BIO_printf(bio_err," -unix path    - unix domain socket to accept on\n");
450         BIO_printf(bio_err," -unlink       - for -unix, unlink existing socket first\n");
451         BIO_printf(bio_err," -context arg  - set session ID context\n");
452         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
453         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
454         BIO_printf(bio_err," -verify_return_error - return verification errors\n");
455         BIO_printf(bio_err," -cert arg     - certificate file to use\n");
456         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
457         BIO_printf(bio_err," -naccept arg  - terminate after 'arg' connections\n");
458 #ifndef OPENSSL_NO_TLSEXT
459         BIO_printf(bio_err," -serverinfo arg - PEM serverinfo file for certificate\n");
460 #endif
461     BIO_printf(bio_err," -no_resumption_on_reneg - set SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION flag\n");
462         BIO_printf(bio_err," -crl_check    - check the peer certificate has not been revoked by its CA.\n" \
463                            "                 The CRL(s) are appended to the certificate file\n");
464         BIO_printf(bio_err," -crl_check_all - check the peer certificate has not been revoked by its CA\n" \
465                            "                 or any other CRL in the CA chain. CRL(s) are appened to the\n" \
466                            "                 the certificate file.\n");
467         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
468         BIO_printf(bio_err," -key arg      - Private Key file to use, in cert file if\n");
469         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
470         BIO_printf(bio_err," -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
471         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
472         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
473         BIO_printf(bio_err," -dcertform x  - second certificate format (PEM or DER) PEM default\n");
474         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
475         BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
476         BIO_printf(bio_err," -dpass arg    - second private key file pass phrase source\n");
477         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
478         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
479 #ifndef OPENSSL_NO_ECDH
480         BIO_printf(bio_err," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
481                            "                 Use \"openssl ecparam -list_curves\" for all names\n" \
482                            "                 (default is nistp256).\n");
483 #endif
484 #ifdef FIONBIO
485         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
486 #endif
487         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
488         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
489         BIO_printf(bio_err," -debug        - Print more output\n");
490         BIO_printf(bio_err," -msg          - Show protocol messages\n");
491         BIO_printf(bio_err," -state        - Print the SSL states\n");
492         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
493         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
494         BIO_printf(bio_err," -trusted_first - Use locally trusted CA's first when building trust chain\n");
495         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
496         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
497         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
498         BIO_printf(bio_err," -quiet        - No server output\n");
499         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
500 #ifndef OPENSSL_NO_PSK
501         BIO_printf(bio_err," -psk_hint arg - PSK identity hint to use\n");
502         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
503 # ifndef OPENSSL_NO_JPAKE
504         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
505 # endif
506 #endif
507 #ifndef OPENSSL_NO_SRP
508         BIO_printf(bio_err," -srpvfile file      - The verifier file for SRP\n");
509         BIO_printf(bio_err," -srpuserseed string - A seed string for a default user salt.\n");
510 #endif
511         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
512         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
513         BIO_printf(bio_err," -tls1_2       - Just talk TLSv1.2\n");
514         BIO_printf(bio_err," -tls1_1       - Just talk TLSv1.1\n");
515         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
516         BIO_printf(bio_err," -dtls1        - Just talk DTLSv1\n");
517         BIO_printf(bio_err," -dtls1_2      - Just talk DTLSv1.2\n");
518         BIO_printf(bio_err," -timeout      - Enable timeouts\n");
519         BIO_printf(bio_err," -mtu          - Set link layer MTU\n");
520         BIO_printf(bio_err," -chain        - Read a certificate chain\n");
521         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
522         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
523         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
524         BIO_printf(bio_err," -no_tls1_1    - Just disable TLSv1.1\n");
525         BIO_printf(bio_err," -no_tls1_2    - Just disable TLSv1.2\n");
526 #ifndef OPENSSL_NO_DH
527         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
528 #endif
529 #ifndef OPENSSL_NO_ECDH
530         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
531 #endif
532         BIO_printf(bio_err, "-no_resume_ephemeral - Disable caching and tickets if ephemeral (EC)DH is used\n");
533         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
534         BIO_printf(bio_err," -hack         - workaround for early Netscape code\n");
535         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
536         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
537         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
538         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
539 #ifndef OPENSSL_NO_ENGINE
540         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
541 #endif
542         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
543         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
544 #ifndef OPENSSL_NO_TLSEXT
545         BIO_printf(bio_err," -servername host - servername for HostName TLS extension\n");
546         BIO_printf(bio_err," -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
547         BIO_printf(bio_err," -cert2 arg    - certificate file to use for servername\n");
548         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT2);
549         BIO_printf(bio_err," -key2 arg     - Private Key file to use for servername, in cert file if\n");
550         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT2);
551         BIO_printf(bio_err," -tlsextdebug  - hex dump of all TLS extensions received\n");
552         BIO_printf(bio_err," -no_ticket    - disable use of RFC4507bis session tickets\n");
553         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
554 # ifndef OPENSSL_NO_NEXTPROTONEG
555         BIO_printf(bio_err," -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
556 # endif
557         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
558         BIO_printf(bio_err," -alpn arg  - set the advertised protocols for the ALPN extension (comma-separated list)\n");
559 #endif
560         BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
561         BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
562         BIO_printf(bio_err," -status           - respond to certificate status requests\n");
563         BIO_printf(bio_err," -status_verbose   - enable status request verbose printout\n");
564         BIO_printf(bio_err," -status_timeout n - status request responder timeout\n");
565         BIO_printf(bio_err," -status_url URL   - status request fallback URL\n");
566         }
567
568 static int local_argc=0;
569 static char **local_argv;
570
571 #ifdef CHARSET_EBCDIC
572 static int ebcdic_new(BIO *bi);
573 static int ebcdic_free(BIO *a);
574 static int ebcdic_read(BIO *b, char *out, int outl);
575 static int ebcdic_write(BIO *b, const char *in, int inl);
576 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
577 static int ebcdic_gets(BIO *bp, char *buf, int size);
578 static int ebcdic_puts(BIO *bp, const char *str);
579
580 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
581 static BIO_METHOD methods_ebcdic=
582         {
583         BIO_TYPE_EBCDIC_FILTER,
584         "EBCDIC/ASCII filter",
585         ebcdic_write,
586         ebcdic_read,
587         ebcdic_puts,
588         ebcdic_gets,
589         ebcdic_ctrl,
590         ebcdic_new,
591         ebcdic_free,
592         };
593
594 typedef struct
595 {
596         size_t  alloced;
597         char    buff[1];
598 } EBCDIC_OUTBUFF;
599
600 BIO_METHOD *BIO_f_ebcdic_filter()
601 {
602         return(&methods_ebcdic);
603 }
604
605 static int ebcdic_new(BIO *bi)
606 {
607         EBCDIC_OUTBUFF *wbuf;
608
609         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
610         wbuf->alloced = 1024;
611         wbuf->buff[0] = '\0';
612
613         bi->ptr=(char *)wbuf;
614         bi->init=1;
615         bi->flags=0;
616         return(1);
617 }
618
619 static int ebcdic_free(BIO *a)
620 {
621         if (a == NULL) return(0);
622         if (a->ptr != NULL)
623                 OPENSSL_free(a->ptr);
624         a->ptr=NULL;
625         a->init=0;
626         a->flags=0;
627         return(1);
628 }
629         
630 static int ebcdic_read(BIO *b, char *out, int outl)
631 {
632         int ret=0;
633
634         if (out == NULL || outl == 0) return(0);
635         if (b->next_bio == NULL) return(0);
636
637         ret=BIO_read(b->next_bio,out,outl);
638         if (ret > 0)
639                 ascii2ebcdic(out,out,ret);
640         return(ret);
641 }
642
643 static int ebcdic_write(BIO *b, const char *in, int inl)
644 {
645         EBCDIC_OUTBUFF *wbuf;
646         int ret=0;
647         int num;
648         unsigned char n;
649
650         if ((in == NULL) || (inl <= 0)) return(0);
651         if (b->next_bio == NULL) return(0);
652
653         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
654
655         if (inl > (num = wbuf->alloced))
656         {
657                 num = num + num;  /* double the size */
658                 if (num < inl)
659                         num = inl;
660                 OPENSSL_free(wbuf);
661                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
662
663                 wbuf->alloced = num;
664                 wbuf->buff[0] = '\0';
665
666                 b->ptr=(char *)wbuf;
667         }
668
669         ebcdic2ascii(wbuf->buff, in, inl);
670
671         ret=BIO_write(b->next_bio, wbuf->buff, inl);
672
673         return(ret);
674 }
675
676 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
677 {
678         long ret;
679
680         if (b->next_bio == NULL) return(0);
681         switch (cmd)
682         {
683         case BIO_CTRL_DUP:
684                 ret=0L;
685                 break;
686         default:
687                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
688                 break;
689         }
690         return(ret);
691 }
692
693 static int ebcdic_gets(BIO *bp, char *buf, int size)
694 {
695         int i, ret=0;
696         if (bp->next_bio == NULL) return(0);
697 /*      return(BIO_gets(bp->next_bio,buf,size));*/
698         for (i=0; i<size-1; ++i)
699         {
700                 ret = ebcdic_read(bp,&buf[i],1);
701                 if (ret <= 0)
702                         break;
703                 else if (buf[i] == '\n')
704                 {
705                         ++i;
706                         break;
707                 }
708         }
709         if (i < size)
710                 buf[i] = '\0';
711         return (ret < 0 && i == 0) ? ret : i;
712 }
713
714 static int ebcdic_puts(BIO *bp, const char *str)
715 {
716         if (bp->next_bio == NULL) return(0);
717         return ebcdic_write(bp, str, strlen(str));
718 }
719 #endif
720
721 #ifndef OPENSSL_NO_TLSEXT
722
723 /* This is a context that we pass to callbacks */
724 typedef struct tlsextctx_st {
725    char * servername;
726    BIO * biodebug;
727    int extension_error;
728 } tlsextctx;
729
730
731 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
732         {
733         tlsextctx * p = (tlsextctx *) arg;
734         const char * servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
735         if (servername && p->biodebug) 
736                 BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
737         
738         if (!p->servername)
739                 return SSL_TLSEXT_ERR_NOACK;
740         
741         if (servername)
742                 {
743                 if (strcmp(servername,p->servername)) 
744                         return p->extension_error;
745                 if (ctx2)
746                         {
747                         BIO_printf(p->biodebug,"Switching server context.\n");
748                         SSL_set_SSL_CTX(s,ctx2);
749                         }     
750                 }
751         return SSL_TLSEXT_ERR_OK;
752 }
753
754 /* Structure passed to cert status callback */
755
756 typedef struct tlsextstatusctx_st {
757    /* Default responder to use */
758    char *host, *path, *port;
759    int use_ssl;
760    int timeout;
761    BIO *err;
762    int verbose;
763 } tlsextstatusctx;
764
765 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0};
766
767 /* Certificate Status callback. This is called when a client includes a
768  * certificate status request extension.
769  *
770  * This is a simplified version. It examines certificates each time and
771  * makes one OCSP responder query for each request.
772  *
773  * A full version would store details such as the OCSP certificate IDs and
774  * minimise the number of OCSP responses by caching them until they were
775  * considered "expired".
776  */
777
778 static int cert_status_cb(SSL *s, void *arg)
779         {
780         tlsextstatusctx *srctx = arg;
781         BIO *err = srctx->err;
782         char *host, *port, *path;
783         int use_ssl;
784         unsigned char *rspder = NULL;
785         int rspderlen;
786         STACK_OF(OPENSSL_STRING) *aia = NULL;
787         X509 *x = NULL;
788         X509_STORE_CTX inctx;
789         X509_OBJECT obj;
790         OCSP_REQUEST *req = NULL;
791         OCSP_RESPONSE *resp = NULL;
792         OCSP_CERTID *id = NULL;
793         STACK_OF(X509_EXTENSION) *exts;
794         int ret = SSL_TLSEXT_ERR_NOACK;
795         int i;
796 #if 0
797 STACK_OF(OCSP_RESPID) *ids;
798 SSL_get_tlsext_status_ids(s, &ids);
799 BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
800 #endif
801         if (srctx->verbose)
802                 BIO_puts(err, "cert_status: callback called\n");
803         /* Build up OCSP query from server certificate */
804         x = SSL_get_certificate(s);
805         aia = X509_get1_ocsp(x);
806         if (aia)
807                 {
808                 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
809                         &host, &port, &path, &use_ssl))
810                         {
811                         BIO_puts(err, "cert_status: can't parse AIA URL\n");
812                         goto err;
813                         }
814                 if (srctx->verbose)
815                         BIO_printf(err, "cert_status: AIA URL: %s\n",
816                                         sk_OPENSSL_STRING_value(aia, 0));
817                 }
818         else
819                 {
820                 if (!srctx->host)
821                         {
822                         BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
823                         goto done;
824                         }
825                 host = srctx->host;
826                 path = srctx->path;
827                 port = srctx->port;
828                 use_ssl = srctx->use_ssl;
829                 }
830                 
831         if (!X509_STORE_CTX_init(&inctx,
832                                 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
833                                 NULL, NULL))
834                 goto err;
835         if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
836                                 X509_get_issuer_name(x),&obj) <= 0)
837                 {
838                 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
839                 X509_STORE_CTX_cleanup(&inctx);
840                 goto done;
841                 }
842         req = OCSP_REQUEST_new();
843         if (!req)
844                 goto err;
845         id = OCSP_cert_to_id(NULL, x, obj.data.x509);
846         X509_free(obj.data.x509);
847         X509_STORE_CTX_cleanup(&inctx);
848         if (!id)
849                 goto err;
850         if (!OCSP_request_add0_id(req, id))
851                 goto err;
852         id = NULL;
853         /* Add any extensions to the request */
854         SSL_get_tlsext_status_exts(s, &exts);
855         for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
856                 {
857                 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
858                 if (!OCSP_REQUEST_add_ext(req, ext, -1))
859                         goto err;
860                 }
861         resp = process_responder(err, req, host, path, port, use_ssl, NULL,
862                                         srctx->timeout);
863         if (!resp)
864                 {
865                 BIO_puts(err, "cert_status: error querying responder\n");
866                 goto done;
867                 }
868         rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
869         if (rspderlen <= 0)
870                 goto err;
871         SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
872         if (srctx->verbose)
873                 {
874                 BIO_puts(err, "cert_status: ocsp response sent:\n");
875                 OCSP_RESPONSE_print(err, resp, 2);
876                 }
877         ret = SSL_TLSEXT_ERR_OK;
878         done:
879         if (ret != SSL_TLSEXT_ERR_OK)
880                 ERR_print_errors(err);
881         if (aia)
882                 {
883                 OPENSSL_free(host);
884                 OPENSSL_free(path);
885                 OPENSSL_free(port);
886                 X509_email_free(aia);
887                 }
888         if (id)
889                 OCSP_CERTID_free(id);
890         if (req)
891                 OCSP_REQUEST_free(req);
892         if (resp)
893                 OCSP_RESPONSE_free(resp);
894         return ret;
895         err:
896         ret = SSL_TLSEXT_ERR_ALERT_FATAL;
897         goto done;
898         }
899
900 # ifndef OPENSSL_NO_NEXTPROTONEG
901 /* This is the context that we pass to next_proto_cb */
902 typedef struct tlsextnextprotoctx_st {
903         unsigned char *data;
904         unsigned int len;
905 } tlsextnextprotoctx;
906
907 static int next_proto_cb(SSL *s, const unsigned char **data, unsigned int *len, void *arg)
908         {
909         tlsextnextprotoctx *next_proto = arg;
910
911         *data = next_proto->data;
912         *len = next_proto->len;
913
914         return SSL_TLSEXT_ERR_OK;
915         }
916 # endif  /* ndef OPENSSL_NO_NEXTPROTONEG */
917
918 /* This the context that we pass to alpn_cb */
919 typedef struct tlsextalpnctx_st {
920         unsigned char *data;
921         unsigned short len;
922 } tlsextalpnctx;
923
924 static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg)
925         {
926         tlsextalpnctx *alpn_ctx = arg;
927
928         if (!s_quiet)
929                 {
930                 /* We can assume that |in| is syntactically valid. */
931                 unsigned i;
932                 BIO_printf(bio_s_out, "ALPN protocols advertised by the client: ");
933                 for (i = 0; i < inlen; )
934                         {
935                         if (i)
936                                 BIO_write(bio_s_out, ", ", 2);
937                         BIO_write(bio_s_out, &in[i + 1], in[i]);
938                         i += in[i] + 1;
939                         }
940                 BIO_write(bio_s_out, "\n", 1);
941                 }
942
943         if (SSL_select_next_proto((unsigned char**) out, outlen, alpn_ctx->data, alpn_ctx->len, in, inlen) !=
944             OPENSSL_NPN_NEGOTIATED)
945                 {
946                 return SSL_TLSEXT_ERR_NOACK;
947                 }
948
949         if (!s_quiet)
950                 {
951                 BIO_printf(bio_s_out, "ALPN protocols selected: ");
952                 BIO_write(bio_s_out, *out, *outlen);
953                 BIO_write(bio_s_out, "\n", 1);
954                 }
955
956         return SSL_TLSEXT_ERR_OK;
957         }
958 #endif  /* ndef OPENSSL_NO_TLSEXT */
959
960 static int not_resumable_sess_cb(SSL *s, int is_forward_secure)
961         {
962         /* disable resumption for sessions with forward secure ciphers */
963         return is_forward_secure;
964         }
965
966 int MAIN(int, char **);
967
968 #ifndef OPENSSL_NO_JPAKE
969 static char *jpake_secret = NULL;
970 #define no_jpake !jpake_secret
971 #else
972 #define no_jpake 1
973 #endif
974 #ifndef OPENSSL_NO_SRP
975         static srpsrvparm srp_callback_parm;
976 #endif
977 static char *srtp_profiles = NULL;
978
979 int MAIN(int argc, char *argv[])
980         {
981         X509_VERIFY_PARAM *vpm = NULL;
982         int badarg = 0;
983         short port=PORT;
984         const char *unix_path=NULL;
985 #ifndef NO_SYS_UN_H
986         int unlink_unix_path=0;
987 #endif
988         int (*server_cb)(char *hostname, int s, int stype, unsigned char *context);
989         char *CApath=NULL,*CAfile=NULL;
990         char *chCApath=NULL,*chCAfile=NULL;
991         char *vfyCApath=NULL,*vfyCAfile=NULL;
992         unsigned char *context = NULL;
993         char *dhfile = NULL;
994         int badop=0;
995         int ret=1;
996         int build_chain = 0;
997         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
998         int state=0;
999         const SSL_METHOD *meth=NULL;
1000         int socket_type=SOCK_STREAM;
1001         ENGINE *e=NULL;
1002         char *inrand=NULL;
1003         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
1004         char *passarg = NULL, *pass = NULL;
1005         char *dpassarg = NULL, *dpass = NULL;
1006         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
1007         X509 *s_cert = NULL, *s_dcert = NULL;
1008         STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL;
1009         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
1010         int no_cache = 0, ext_cache = 0;
1011         int rev = 0, naccept = -1;
1012         int sdebug = 0;
1013 #ifndef OPENSSL_NO_TLSEXT
1014         EVP_PKEY *s_key2 = NULL;
1015         X509 *s_cert2 = NULL;
1016         tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
1017 # ifndef OPENSSL_NO_NEXTPROTONEG
1018         const char *next_proto_neg_in = NULL;
1019         tlsextnextprotoctx next_proto = { NULL, 0};
1020 # endif
1021         const char *alpn_in = NULL;
1022         tlsextalpnctx alpn_ctx = { NULL, 0};
1023 #endif
1024 #ifndef OPENSSL_NO_PSK
1025         /* by default do not send a PSK identity hint */
1026         static char *psk_identity_hint=NULL;
1027 #endif
1028 #ifndef OPENSSL_NO_SRP
1029         char *srpuserseed = NULL;
1030         char *srp_verifier_file = NULL;
1031 #endif
1032         SSL_EXCERT *exc = NULL;
1033         SSL_CONF_CTX *cctx = NULL;
1034         STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
1035
1036         char *crl_file = NULL;
1037         int crl_format = FORMAT_PEM;
1038         int crl_download = 0;
1039         STACK_OF(X509_CRL) *crls = NULL;
1040
1041         meth=SSLv23_server_method();
1042
1043         local_argc=argc;
1044         local_argv=argv;
1045
1046         apps_startup();
1047 #ifdef MONOLITH
1048         s_server_init();
1049 #endif
1050
1051         if (bio_err == NULL)
1052                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
1053
1054         if (!load_config(bio_err, NULL))
1055                 goto end;
1056
1057         cctx = SSL_CONF_CTX_new();
1058         if (!cctx)
1059                 goto end;
1060         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_SERVER);
1061         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CMDLINE);
1062
1063         verify_depth=0;
1064 #ifdef FIONBIO
1065         s_nbio=0;
1066 #endif
1067         s_nbio_test=0;
1068
1069         argc--;
1070         argv++;
1071
1072         while (argc >= 1)
1073                 {
1074                 if      ((strcmp(*argv,"-port") == 0) ||
1075                          (strcmp(*argv,"-accept") == 0))
1076                         {
1077                         if (--argc < 1) goto bad;
1078                         if (!extract_port(*(++argv),&port))
1079                                 goto bad;
1080                         }
1081                 else if (strcmp(*argv,"-unix") == 0)
1082                         {
1083 #ifdef NO_SYS_UN_H
1084                         BIO_printf(bio_err, "unix domain sockets unsupported\n");
1085                         goto bad;
1086 #else
1087                         if (--argc < 1) goto bad;
1088                         unix_path = *(++argv);
1089 #endif
1090                         }
1091                 else if (strcmp(*argv,"-unlink") == 0)
1092                         {
1093 #ifdef NO_SYS_UN_H
1094                         BIO_printf(bio_err, "unix domain sockets unsupported\n");
1095                         goto bad;
1096 #else
1097                         unlink_unix_path = 1;
1098 #endif
1099                         }
1100                 else if (strcmp(*argv,"-naccept") == 0)
1101                         {
1102                         if (--argc < 1) goto bad;
1103                         naccept = atol(*(++argv));
1104                         if (naccept <= 0)
1105                                 {
1106                                 BIO_printf(bio_err, "bad accept value %s\n",
1107                                                         *argv);
1108                                 goto bad;
1109                                 }
1110                         }
1111                 else if (strcmp(*argv,"-verify") == 0)
1112                         {
1113                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
1114                         if (--argc < 1) goto bad;
1115                         verify_depth=atoi(*(++argv));
1116                         if (!s_quiet)
1117                                 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
1118                         }
1119                 else if (strcmp(*argv,"-Verify") == 0)
1120                         {
1121                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
1122                                 SSL_VERIFY_CLIENT_ONCE;
1123                         if (--argc < 1) goto bad;
1124                         verify_depth=atoi(*(++argv));
1125                         if (!s_quiet)
1126                                 BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
1127                         }
1128                 else if (strcmp(*argv,"-context") == 0)
1129                         {
1130                         if (--argc < 1) goto bad;
1131                         context= (unsigned char *)*(++argv);
1132                         }
1133                 else if (strcmp(*argv,"-cert") == 0)
1134                         {
1135                         if (--argc < 1) goto bad;
1136                         s_cert_file= *(++argv);
1137                         }
1138                 else if (strcmp(*argv,"-CRL") == 0)
1139                         {
1140                         if (--argc < 1) goto bad;
1141                         crl_file= *(++argv);
1142                         }
1143                 else if (strcmp(*argv,"-crl_download") == 0)
1144                         crl_download = 1;
1145 #ifndef OPENSSL_NO_TLSEXT
1146                 else if (strcmp(*argv,"-serverinfo") == 0)
1147                         {
1148                         if (--argc < 1) goto bad;
1149                         s_serverinfo_file = *(++argv);
1150                         }
1151 #endif
1152                 else if (strcmp(*argv,"-certform") == 0)
1153                         {
1154                         if (--argc < 1) goto bad;
1155                         s_cert_format = str2fmt(*(++argv));
1156                         }
1157                 else if (strcmp(*argv,"-key") == 0)
1158                         {
1159                         if (--argc < 1) goto bad;
1160                         s_key_file= *(++argv);
1161                         }
1162                 else if (strcmp(*argv,"-keyform") == 0)
1163                         {
1164                         if (--argc < 1) goto bad;
1165                         s_key_format = str2fmt(*(++argv));
1166                         }
1167                 else if (strcmp(*argv,"-pass") == 0)
1168                         {
1169                         if (--argc < 1) goto bad;
1170                         passarg = *(++argv);
1171                         }
1172                 else if (strcmp(*argv,"-cert_chain") == 0)
1173                         {
1174                         if (--argc < 1) goto bad;
1175                         s_chain_file= *(++argv);
1176                         }
1177                 else if (strcmp(*argv,"-dhparam") == 0)
1178                         {
1179                         if (--argc < 1) goto bad;
1180                         dhfile = *(++argv);
1181                         }
1182                 else if (strcmp(*argv,"-dcertform") == 0)
1183                         {
1184                         if (--argc < 1) goto bad;
1185                         s_dcert_format = str2fmt(*(++argv));
1186                         }
1187                 else if (strcmp(*argv,"-dcert") == 0)
1188                         {
1189                         if (--argc < 1) goto bad;
1190                         s_dcert_file= *(++argv);
1191                         }
1192                 else if (strcmp(*argv,"-dkeyform") == 0)
1193                         {
1194                         if (--argc < 1) goto bad;
1195                         s_dkey_format = str2fmt(*(++argv));
1196                         }
1197                 else if (strcmp(*argv,"-dpass") == 0)
1198                         {
1199                         if (--argc < 1) goto bad;
1200                         dpassarg = *(++argv);
1201                         }
1202                 else if (strcmp(*argv,"-dkey") == 0)
1203                         {
1204                         if (--argc < 1) goto bad;
1205                         s_dkey_file= *(++argv);
1206                         }
1207                 else if (strcmp(*argv,"-dcert_chain") == 0)
1208                         {
1209                         if (--argc < 1) goto bad;
1210                         s_dchain_file= *(++argv);
1211                         }
1212                 else if (strcmp(*argv,"-nocert") == 0)
1213                         {
1214                         nocert=1;
1215                         }
1216                 else if (strcmp(*argv,"-CApath") == 0)
1217                         {
1218                         if (--argc < 1) goto bad;
1219                         CApath= *(++argv);
1220                         }
1221                 else if (strcmp(*argv,"-chainCApath") == 0)
1222                         {
1223                         if (--argc < 1) goto bad;
1224                         chCApath= *(++argv);
1225                         }
1226                 else if (strcmp(*argv,"-verifyCApath") == 0)
1227                         {
1228                         if (--argc < 1) goto bad;
1229                         vfyCApath= *(++argv);
1230                         }
1231                 else if (strcmp(*argv,"-no_cache") == 0)
1232                         no_cache = 1;
1233                 else if (strcmp(*argv,"-ext_cache") == 0)
1234                         ext_cache = 1;
1235                 else if (strcmp(*argv,"-CRLform") == 0)
1236                         {
1237                         if (--argc < 1) goto bad;
1238                         crl_format = str2fmt(*(++argv));
1239                         }
1240                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
1241                         {
1242                         if (badarg)
1243                                 goto bad;
1244                         continue;
1245                         }
1246                 else if (args_excert(&argv, &argc, &badarg, bio_err, &exc))
1247                         {
1248                         if (badarg)
1249                                 goto bad;
1250                         continue;
1251                         }
1252                 else if (args_ssl(&argv, &argc, cctx, &badarg, bio_err, &ssl_args))
1253                         {
1254                         if (badarg)
1255                                 goto bad;
1256                         continue;
1257                         }
1258                 else if (strcmp(*argv,"-verify_return_error") == 0)
1259                         verify_return_error = 1;
1260                 else if (strcmp(*argv,"-verify_quiet") == 0)
1261                         verify_quiet = 1;
1262                 else if (strcmp(*argv,"-build_chain") == 0)
1263                         build_chain = 1;
1264                 else if (strcmp(*argv,"-CAfile") == 0)
1265                         {
1266                         if (--argc < 1) goto bad;
1267                         CAfile= *(++argv);
1268                         }
1269                 else if (strcmp(*argv,"-chainCAfile") == 0)
1270                         {
1271                         if (--argc < 1) goto bad;
1272                         chCAfile= *(++argv);
1273                         }
1274                 else if (strcmp(*argv,"-verifyCAfile") == 0)
1275                         {
1276                         if (--argc < 1) goto bad;
1277                         vfyCAfile= *(++argv);
1278                         }
1279 #ifdef FIONBIO  
1280                 else if (strcmp(*argv,"-nbio") == 0)
1281                         { s_nbio=1; }
1282 #endif
1283                 else if (strcmp(*argv,"-nbio_test") == 0)
1284                         {
1285 #ifdef FIONBIO  
1286                         s_nbio=1;
1287 #endif
1288                         s_nbio_test=1;
1289                         }
1290                 else if (strcmp(*argv,"-ign_eof") == 0)
1291                         s_ign_eof=1;
1292                 else if (strcmp(*argv,"-no_ign_eof") == 0)
1293                         s_ign_eof=0;
1294                 else if (strcmp(*argv,"-debug") == 0)
1295                         { s_debug=1; }
1296 #ifndef OPENSSL_NO_TLSEXT
1297                 else if (strcmp(*argv,"-tlsextdebug") == 0)
1298                         s_tlsextdebug=1;
1299                 else if (strcmp(*argv,"-status") == 0)
1300                         s_tlsextstatus=1;
1301                 else if (strcmp(*argv,"-status_verbose") == 0)
1302                         {
1303                         s_tlsextstatus=1;
1304                         tlscstatp.verbose = 1;
1305                         }
1306                 else if (!strcmp(*argv, "-status_timeout"))
1307                         {
1308                         s_tlsextstatus=1;
1309                         if (--argc < 1) goto bad;
1310                         tlscstatp.timeout = atoi(*(++argv));
1311                         }
1312                 else if (!strcmp(*argv, "-status_url"))
1313                         {
1314                         s_tlsextstatus=1;
1315                         if (--argc < 1) goto bad;
1316                         if (!OCSP_parse_url(*(++argv),
1317                                         &tlscstatp.host,
1318                                         &tlscstatp.port,
1319                                         &tlscstatp.path,
1320                                         &tlscstatp.use_ssl))
1321                                 {
1322                                 BIO_printf(bio_err, "Error parsing URL\n");
1323                                 goto bad;
1324                                 }
1325                         }
1326 #endif
1327                 else if (strcmp(*argv,"-msg") == 0)
1328                         { s_msg=1; }
1329                 else if (strcmp(*argv,"-msgfile") == 0)
1330                         {
1331                         if (--argc < 1) goto bad;
1332                         bio_s_msg = BIO_new_file(*(++argv), "w");
1333                         }
1334 #ifndef OPENSSL_NO_SSL_TRACE
1335                 else if (strcmp(*argv,"-trace") == 0)
1336                         { s_msg=2; }
1337 #endif
1338                 else if (strcmp(*argv,"-security_debug") == 0)
1339                         { sdebug=1; }
1340                 else if (strcmp(*argv,"-security_debug_verbose") == 0)
1341                         { sdebug=2; }
1342                 else if (strcmp(*argv,"-hack") == 0)
1343                         { hack=1; }
1344                 else if (strcmp(*argv,"-state") == 0)
1345                         { state=1; }
1346                 else if (strcmp(*argv,"-crlf") == 0)
1347                         { s_crlf=1; }
1348                 else if (strcmp(*argv,"-quiet") == 0)
1349                         { s_quiet=1; }
1350                 else if (strcmp(*argv,"-brief") == 0)
1351                         {
1352                         s_quiet=1;
1353                         s_brief=1;
1354                         verify_quiet=1;
1355                         }
1356                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
1357                         { no_tmp_rsa=1; }
1358                 else if (strcmp(*argv,"-no_dhe") == 0)
1359                         { no_dhe=1; }
1360                 else if (strcmp(*argv,"-no_ecdhe") == 0)
1361                         { no_ecdhe=1; }
1362                 else if (strcmp(*argv,"-no_resume_ephemeral") == 0)
1363                         { no_resume_ephemeral = 1; }
1364 #ifndef OPENSSL_NO_PSK
1365                 else if (strcmp(*argv,"-psk_hint") == 0)
1366                         {
1367                         if (--argc < 1) goto bad;
1368                         psk_identity_hint= *(++argv);
1369                         }
1370                 else if (strcmp(*argv,"-psk") == 0)
1371                         {
1372                         size_t i;
1373
1374                         if (--argc < 1) goto bad;
1375                         psk_key=*(++argv);
1376                         for (i=0; i<strlen(psk_key); i++)
1377                                 {
1378                                 if (isxdigit((unsigned char)psk_key[i]))
1379                                         continue;
1380                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
1381                                 goto bad;
1382                                 }
1383                         }
1384 #endif
1385 #ifndef OPENSSL_NO_SRP
1386                 else if (strcmp(*argv, "-srpvfile") == 0)
1387                         {
1388                         if (--argc < 1) goto bad;
1389                         srp_verifier_file = *(++argv);
1390                         meth = TLSv1_server_method();
1391                         }
1392                 else if (strcmp(*argv, "-srpuserseed") == 0)
1393                         {
1394                         if (--argc < 1) goto bad;
1395                         srpuserseed = *(++argv);
1396                         meth = TLSv1_server_method();
1397                         }
1398 #endif
1399                 else if (strcmp(*argv,"-rev") == 0)
1400                         { rev=1; }
1401                 else if (strcmp(*argv,"-www") == 0)
1402                         { www=1; }
1403                 else if (strcmp(*argv,"-WWW") == 0)
1404                         { www=2; }
1405                 else if (strcmp(*argv,"-HTTP") == 0)
1406                         { www=3; }
1407 #ifndef OPENSSL_NO_SSL2
1408                 else if (strcmp(*argv,"-ssl2") == 0)
1409                         { meth=SSLv2_server_method(); }
1410 #endif
1411 #ifndef OPENSSL_NO_SSL3
1412                 else if (strcmp(*argv,"-ssl3") == 0)
1413                         { meth=SSLv3_server_method(); }
1414 #endif
1415 #ifndef OPENSSL_NO_TLS1
1416                 else if (strcmp(*argv,"-tls1") == 0)
1417                         { meth=TLSv1_server_method(); }
1418                 else if (strcmp(*argv,"-tls1_1") == 0)
1419                         { meth=TLSv1_1_server_method(); }
1420                 else if (strcmp(*argv,"-tls1_2") == 0)
1421                         { meth=TLSv1_2_server_method(); }
1422 #endif
1423 #ifndef OPENSSL_NO_DTLS1
1424                 else if (strcmp(*argv,"-dtls") == 0)
1425                         { 
1426                         meth=DTLS_server_method();
1427                         socket_type = SOCK_DGRAM;
1428                         }
1429                 else if (strcmp(*argv,"-dtls1") == 0)
1430                         { 
1431                         meth=DTLSv1_server_method();
1432                         socket_type = SOCK_DGRAM;
1433                         }
1434                 else if (strcmp(*argv,"-dtls1_2") == 0)
1435                         { 
1436                         meth=DTLSv1_2_server_method();
1437                         socket_type = SOCK_DGRAM;
1438                         }
1439                 else if (strcmp(*argv,"-timeout") == 0)
1440                         enable_timeouts = 1;
1441                 else if (strcmp(*argv,"-mtu") == 0)
1442                         {
1443                         if (--argc < 1) goto bad;
1444                         socket_mtu = atol(*(++argv));
1445                         }
1446                 else if (strcmp(*argv, "-chain") == 0)
1447                         cert_chain = 1;
1448 #endif
1449                 else if (strcmp(*argv, "-id_prefix") == 0)
1450                         {
1451                         if (--argc < 1) goto bad;
1452                         session_id_prefix = *(++argv);
1453                         }
1454 #ifndef OPENSSL_NO_ENGINE
1455                 else if (strcmp(*argv,"-engine") == 0)
1456                         {
1457                         if (--argc < 1) goto bad;
1458                         engine_id= *(++argv);
1459                         }
1460 #endif
1461                 else if (strcmp(*argv,"-rand") == 0)
1462                         {
1463                         if (--argc < 1) goto bad;
1464                         inrand= *(++argv);
1465                         }
1466 #ifndef OPENSSL_NO_TLSEXT
1467                 else if (strcmp(*argv,"-servername") == 0)
1468                         {
1469                         if (--argc < 1) goto bad;
1470                         tlsextcbp.servername= *(++argv);
1471                         }
1472                 else if (strcmp(*argv,"-servername_fatal") == 0)
1473                         { tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; }
1474                 else if (strcmp(*argv,"-cert2") == 0)
1475                         {
1476                         if (--argc < 1) goto bad;
1477                         s_cert_file2= *(++argv);
1478                         }
1479                 else if (strcmp(*argv,"-key2") == 0)
1480                         {
1481                         if (--argc < 1) goto bad;
1482                         s_key_file2= *(++argv);
1483                         }
1484 # ifndef OPENSSL_NO_NEXTPROTONEG
1485                 else if (strcmp(*argv,"-nextprotoneg") == 0)
1486                         {
1487                         if (--argc < 1) goto bad;
1488                         next_proto_neg_in = *(++argv);
1489                         }
1490 # endif
1491                 else if (strcmp(*argv,"-alpn") == 0)
1492                         {
1493                         if (--argc < 1) goto bad;
1494                         alpn_in = *(++argv);
1495                         }
1496 #endif
1497 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1498                 else if (strcmp(*argv,"-jpake") == 0)
1499                         {
1500                         if (--argc < 1) goto bad;
1501                         jpake_secret = *(++argv);
1502                         }
1503 #endif
1504                 else if (strcmp(*argv,"-use_srtp") == 0)
1505                         {
1506                         if (--argc < 1) goto bad;
1507                         srtp_profiles = *(++argv);
1508                         }
1509                 else if (strcmp(*argv,"-keymatexport") == 0)
1510                         {
1511                         if (--argc < 1) goto bad;
1512                         keymatexportlabel= *(++argv);
1513                         }
1514                 else if (strcmp(*argv,"-keymatexportlen") == 0)
1515                         {
1516                         if (--argc < 1) goto bad;
1517                         keymatexportlen=atoi(*(++argv));
1518                         if (keymatexportlen == 0) goto bad;
1519                         }
1520                 else
1521                         {
1522                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1523                         badop=1;
1524                         break;
1525                         }
1526                 argc--;
1527                 argv++;
1528                 }
1529         if (badop)
1530                 {
1531 bad:
1532                 sv_usage();
1533                 goto end;
1534                 }
1535
1536         if (unix_path && (socket_type != SOCK_STREAM))
1537                 {
1538                 BIO_printf(bio_err, "Can't use unix sockets and datagrams together\n");
1539                         goto end;
1540                 }
1541 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1542         if (jpake_secret)
1543                 {
1544                 if (psk_key)
1545                         {
1546                         BIO_printf(bio_err,
1547                                    "Can't use JPAKE and PSK together\n");
1548                         goto end;
1549                         }
1550                 psk_identity = "JPAKE";
1551                 }
1552 #endif
1553
1554         SSL_load_error_strings();
1555         OpenSSL_add_ssl_algorithms();
1556
1557 #ifndef OPENSSL_NO_ENGINE
1558         e = setup_engine(bio_err, engine_id, 1);
1559 #endif
1560
1561         if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
1562                 {
1563                 BIO_printf(bio_err, "Error getting password\n");
1564                 goto end;
1565                 }
1566
1567
1568         if (s_key_file == NULL)
1569                 s_key_file = s_cert_file;
1570 #ifndef OPENSSL_NO_TLSEXT
1571         if (s_key_file2 == NULL)
1572                 s_key_file2 = s_cert_file2;
1573 #endif
1574
1575         if (!load_excert(&exc, bio_err))
1576                 goto end;
1577
1578         if (nocert == 0)
1579                 {
1580                 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
1581                        "server certificate private key file");
1582                 if (!s_key)
1583                         {
1584                         ERR_print_errors(bio_err);
1585                         goto end;
1586                         }
1587
1588                 s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
1589                         NULL, e, "server certificate file");
1590
1591                 if (!s_cert)
1592                         {
1593                         ERR_print_errors(bio_err);
1594                         goto end;
1595                         }
1596                 if (s_chain_file)
1597                         {
1598                         s_chain = load_certs(bio_err, s_chain_file,FORMAT_PEM,
1599                                         NULL, e, "server certificate chain");
1600                         if (!s_chain)
1601                                 goto end;
1602                         }
1603
1604 #ifndef OPENSSL_NO_TLSEXT
1605                 if (tlsextcbp.servername) 
1606                         {
1607                         s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
1608                                 "second server certificate private key file");
1609                         if (!s_key2)
1610                                 {
1611                                 ERR_print_errors(bio_err);
1612                                 goto end;
1613                                 }
1614                         
1615                         s_cert2 = load_cert(bio_err,s_cert_file2,s_cert_format,
1616                                 NULL, e, "second server certificate file");
1617                         
1618                         if (!s_cert2)
1619                                 {
1620                                 ERR_print_errors(bio_err);
1621                                 goto end;
1622                                 }
1623                         }
1624 #endif /* OPENSSL_NO_TLSEXT */
1625                 }
1626
1627 #if !defined(OPENSSL_NO_TLSEXT)
1628 # if !defined(OPENSSL_NO_NEXTPROTONEG) 
1629         if (next_proto_neg_in)
1630                 {
1631                 unsigned short len;
1632                 next_proto.data = next_protos_parse(&len, next_proto_neg_in);
1633                 if (next_proto.data == NULL)
1634                         goto end;
1635                 next_proto.len = len;
1636                 }
1637         else
1638                 {
1639                 next_proto.data = NULL;
1640                 }
1641 # endif
1642         alpn_ctx.data = NULL;
1643         if (alpn_in)
1644                 {
1645                 unsigned short len;
1646                 alpn_ctx.data = next_protos_parse(&len, alpn_in);
1647                 if (alpn_ctx.data == NULL)
1648                         goto end;
1649                 alpn_ctx.len = len;
1650                 }
1651 #endif
1652
1653         if (crl_file)
1654                 {
1655                 X509_CRL *crl;
1656                 crl = load_crl(crl_file, crl_format);
1657                 if (!crl)
1658                         {
1659                         BIO_puts(bio_err, "Error loading CRL\n");
1660                         ERR_print_errors(bio_err);
1661                         goto end;
1662                         }
1663                 crls = sk_X509_CRL_new_null();
1664                 if (!crls || !sk_X509_CRL_push(crls, crl))
1665                         {
1666                         BIO_puts(bio_err, "Error adding CRL\n");
1667                         ERR_print_errors(bio_err);
1668                         X509_CRL_free(crl);
1669                         goto end;
1670                         }
1671                 }
1672
1673
1674         if (s_dcert_file)
1675                 {
1676
1677                 if (s_dkey_file == NULL)
1678                         s_dkey_file = s_dcert_file;
1679
1680                 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
1681                                 0, dpass, e,
1682                                "second certificate private key file");
1683                 if (!s_dkey)
1684                         {
1685                         ERR_print_errors(bio_err);
1686                         goto end;
1687                         }
1688
1689                 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
1690                                 NULL, e, "second server certificate file");
1691
1692                 if (!s_dcert)
1693                         {
1694                         ERR_print_errors(bio_err);
1695                         goto end;
1696                         }
1697                 if (s_dchain_file)
1698                         {
1699                         s_dchain = load_certs(bio_err, s_dchain_file,FORMAT_PEM,
1700                                 NULL, e, "second server certificate chain");
1701                         if (!s_dchain)
1702                                 goto end;
1703                         }
1704
1705                 }
1706
1707         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1708                 && !RAND_status())
1709                 {
1710                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1711                 }
1712         if (inrand != NULL)
1713                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1714                         app_RAND_load_files(inrand));
1715
1716         if (bio_s_out == NULL)
1717                 {
1718                 if (s_quiet && !s_debug)
1719                         {
1720                         bio_s_out=BIO_new(BIO_s_null());
1721                         if (s_msg && !bio_s_msg)
1722                                 bio_s_msg=BIO_new_fp(stdout,BIO_NOCLOSE);
1723                         }
1724                 else
1725                         {
1726                         if (bio_s_out == NULL)
1727                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1728                         }
1729                 }
1730
1731 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
1732         if (nocert)
1733 #endif
1734                 {
1735                 s_cert_file=NULL;
1736                 s_key_file=NULL;
1737                 s_dcert_file=NULL;
1738                 s_dkey_file=NULL;
1739 #ifndef OPENSSL_NO_TLSEXT
1740                 s_cert_file2=NULL;
1741                 s_key_file2=NULL;
1742 #endif
1743                 }
1744
1745         ctx=SSL_CTX_new(meth);
1746         if (sdebug)
1747                 ssl_ctx_security_debug(ctx, bio_err, sdebug);
1748         if (ctx == NULL)
1749                 {
1750                 ERR_print_errors(bio_err);
1751                 goto end;
1752                 }
1753         if (session_id_prefix)
1754                 {
1755                 if(strlen(session_id_prefix) >= 32)
1756                         BIO_printf(bio_err,
1757 "warning: id_prefix is too long, only one new session will be possible\n");
1758                 else if(strlen(session_id_prefix) >= 16)
1759                         BIO_printf(bio_err,
1760 "warning: id_prefix is too long if you use SSLv2\n");
1761                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
1762                         {
1763                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
1764                         ERR_print_errors(bio_err);
1765                         goto end;
1766                         }
1767                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1768                 }
1769         SSL_CTX_set_quiet_shutdown(ctx,1);
1770         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1771         if (exc) ssl_ctx_set_excert(ctx, exc);
1772         /* DTLS: partial reads end up discarding unread UDP bytes :-( 
1773          * Setting read ahead solves this problem.
1774          */
1775         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1776
1777         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1778         if (no_cache)
1779                 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1780         else if (ext_cache)
1781                 init_session_cache_ctx(ctx);
1782         else
1783                 SSL_CTX_sess_set_cache_size(ctx,128);
1784
1785         if (srtp_profiles != NULL)
1786                 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1787
1788 #if 0
1789         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
1790 #endif
1791
1792 #if 0
1793         if (s_cert_file == NULL)
1794                 {
1795                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
1796                 goto end;
1797                 }
1798 #endif
1799
1800         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1801                 (!SSL_CTX_set_default_verify_paths(ctx)))
1802                 {
1803                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1804                 ERR_print_errors(bio_err);
1805                 /* goto end; */
1806                 }
1807         if (vpm)
1808                 SSL_CTX_set1_param(ctx, vpm);
1809
1810         ssl_ctx_add_crls(ctx, crls, 0);
1811         if (!args_ssl_call(ctx, bio_err, cctx, ssl_args, no_ecdhe, no_jpake))
1812                 goto end;
1813
1814         if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1815                                                 crls, crl_download))
1816                 {
1817                 BIO_printf(bio_err, "Error loading store locations\n");
1818                 ERR_print_errors(bio_err);
1819                 goto end;
1820                 }
1821
1822 #ifndef OPENSSL_NO_TLSEXT
1823         if (s_cert2)
1824                 {
1825                 ctx2=SSL_CTX_new(meth);
1826                 if (ctx2 == NULL)
1827                         {
1828                         ERR_print_errors(bio_err);
1829                         goto end;
1830                         }
1831                 }
1832         
1833         if (ctx2)
1834                 {
1835                 BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
1836
1837                 if (sdebug)
1838                         ssl_ctx_security_debug(ctx, bio_err, sdebug);
1839
1840                 if (session_id_prefix)
1841                         {
1842                         if(strlen(session_id_prefix) >= 32)
1843                                 BIO_printf(bio_err,
1844                                         "warning: id_prefix is too long, only one new session will be possible\n");
1845                         else if(strlen(session_id_prefix) >= 16)
1846                                 BIO_printf(bio_err,
1847                                         "warning: id_prefix is too long if you use SSLv2\n");
1848                         if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
1849                                 {
1850                                 BIO_printf(bio_err,"error setting 'id_prefix'\n");
1851                                 ERR_print_errors(bio_err);
1852                                 goto end;
1853                                 }
1854                         BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1855                         }
1856                 SSL_CTX_set_quiet_shutdown(ctx2,1);
1857                 if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1858                 if (exc) ssl_ctx_set_excert(ctx2, exc);
1859                 /* DTLS: partial reads end up discarding unread UDP bytes :-( 
1860                  * Setting read ahead solves this problem.
1861                  */
1862                 if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
1863
1864                 if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
1865
1866                 if (no_cache)
1867                         SSL_CTX_set_session_cache_mode(ctx2,SSL_SESS_CACHE_OFF);
1868                 else if (ext_cache)
1869                         init_session_cache_ctx(ctx2);
1870                 else
1871                         SSL_CTX_sess_set_cache_size(ctx2,128);
1872
1873                 if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
1874                         (!SSL_CTX_set_default_verify_paths(ctx2)))
1875                         {
1876                         ERR_print_errors(bio_err);
1877                         }
1878                 if (vpm)
1879                         SSL_CTX_set1_param(ctx2, vpm);
1880
1881                 ssl_ctx_add_crls(ctx2, crls, 0);
1882                 if (!args_ssl_call(ctx2, bio_err, cctx, ssl_args, no_ecdhe, no_jpake))
1883                         goto end;
1884                 }
1885
1886 # ifndef OPENSSL_NO_NEXTPROTONEG
1887         if (next_proto.data)
1888                 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto);
1889 # endif
1890         if (alpn_ctx.data)
1891                 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx);
1892 #endif 
1893
1894 #ifndef OPENSSL_NO_DH
1895         if (!no_dhe)
1896                 {
1897                 DH *dh=NULL;
1898
1899                 if (dhfile)
1900                         dh = load_dh_param(dhfile);
1901                 else if (s_cert_file)
1902                         dh = load_dh_param(s_cert_file);
1903
1904                 if (dh != NULL)
1905                         {
1906                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1907                         }
1908                 else
1909                         {
1910                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
1911                         }
1912                 (void)BIO_flush(bio_s_out);
1913
1914                 if (dh == NULL)
1915                         SSL_CTX_set_dh_auto(ctx, 1);
1916                 else if (!SSL_CTX_set_tmp_dh(ctx,dh))
1917                         {
1918                         BIO_puts(bio_err, "Error setting temp DH parameters\n");
1919                         ERR_print_errors(bio_err);
1920                         DH_free(dh);
1921                         goto end;
1922                         }
1923 #ifndef OPENSSL_NO_TLSEXT
1924                 if (ctx2)
1925                         {
1926                         if (!dhfile)
1927                                 { 
1928                                 DH *dh2=load_dh_param(s_cert_file2);
1929                                 if (dh2 != NULL)
1930                                         {
1931                                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1932                                         (void)BIO_flush(bio_s_out);
1933
1934                                         DH_free(dh);
1935                                         dh = dh2;
1936                                         }
1937                                 }
1938                         if (dh == NULL)
1939                                 SSL_CTX_set_dh_auto(ctx2, 1);
1940                         else if (!SSL_CTX_set_tmp_dh(ctx2,dh))
1941                                 {
1942                                 BIO_puts(bio_err, "Error setting temp DH parameters\n");
1943                                 ERR_print_errors(bio_err);
1944                                 DH_free(dh);
1945                                 goto end;
1946                                 }
1947                         }
1948 #endif
1949                 DH_free(dh);
1950                 }
1951 #endif
1952
1953         if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain))
1954                 goto end;
1955 #ifndef OPENSSL_NO_TLSEXT
1956         if (s_serverinfo_file != NULL
1957             && !SSL_CTX_use_serverinfo_file(ctx, s_serverinfo_file))
1958                 {
1959                 ERR_print_errors(bio_err);
1960                 goto end;
1961                 }
1962 #endif
1963 #ifndef OPENSSL_NO_TLSEXT
1964         if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2, NULL, build_chain))
1965                 goto end; 
1966 #endif
1967         if (s_dcert != NULL)
1968                 {
1969                 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain))
1970                         goto end;
1971                 }
1972
1973 #ifndef OPENSSL_NO_RSA
1974 #if 1
1975         if (!no_tmp_rsa)
1976                 {
1977                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
1978 #ifndef OPENSSL_NO_TLSEXT
1979                 if (ctx2) 
1980                         SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
1981 #endif          
1982                 }
1983 #else
1984         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
1985                 {
1986                 RSA *rsa;
1987
1988                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
1989                 BIO_flush(bio_s_out);
1990
1991                 rsa=RSA_generate_key(512,RSA_F4,NULL);
1992
1993                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
1994                         {
1995                         ERR_print_errors(bio_err);
1996                         goto end;
1997                         }
1998 #ifndef OPENSSL_NO_TLSEXT
1999                         if (ctx2)
2000                                 {
2001                                 if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
2002                                         {
2003                                         ERR_print_errors(bio_err);
2004                                         goto end;
2005                                         }
2006                                 }
2007 #endif
2008                 RSA_free(rsa);
2009                 BIO_printf(bio_s_out,"\n");
2010                 }
2011 #endif
2012 #endif
2013
2014         if (no_resume_ephemeral)
2015                 {
2016                 SSL_CTX_set_not_resumable_session_callback(ctx, not_resumable_sess_cb);
2017 #ifndef OPENSSL_NO_TLSEXT
2018                 if (ctx2)
2019                         SSL_CTX_set_not_resumable_session_callback(ctx2, not_resumable_sess_cb);
2020 #endif
2021                 }
2022
2023 #ifndef OPENSSL_NO_PSK
2024 #ifdef OPENSSL_NO_JPAKE
2025         if (psk_key != NULL)
2026 #else
2027         if (psk_key != NULL || jpake_secret)
2028 #endif
2029                 {
2030                 if (s_debug)
2031                         BIO_printf(bio_s_out, "PSK key given or JPAKE in use, setting server callback\n");
2032                 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
2033                 }
2034
2035         if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint))
2036                 {
2037                 BIO_printf(bio_err,"error setting PSK identity hint to context\n");
2038                 ERR_print_errors(bio_err);
2039                 goto end;
2040                 }
2041 #endif
2042
2043         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
2044         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
2045                 sizeof s_server_session_id_context);
2046
2047         /* Set DTLS cookie generation and verification callbacks */
2048         SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
2049         SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
2050
2051 #ifndef OPENSSL_NO_TLSEXT
2052         if (ctx2)
2053                 {
2054                 SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
2055                 SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
2056                         sizeof s_server_session_id_context);
2057
2058                 tlsextcbp.biodebug = bio_s_out;
2059                 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
2060                 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
2061                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
2062                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
2063                 }
2064 #endif
2065
2066 #ifndef OPENSSL_NO_SRP
2067         if (srp_verifier_file != NULL)
2068                 {
2069                 srp_callback_parm.vb = SRP_VBASE_new(srpuserseed);
2070                 srp_callback_parm.user = NULL;
2071                 srp_callback_parm.login = NULL;
2072                 if ((ret = SRP_VBASE_init(srp_callback_parm.vb, srp_verifier_file)) != SRP_NO_ERROR)
2073                         {
2074                         BIO_printf(bio_err,
2075                                    "Cannot initialize SRP verifier file \"%s\":ret=%d\n",
2076                                    srp_verifier_file, ret);
2077                                 goto end;
2078                         }
2079                 SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE,verify_callback);
2080                 SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm);                        
2081                 SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
2082                 }
2083         else
2084 #endif
2085         if (CAfile != NULL)
2086                 {
2087                 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
2088 #ifndef OPENSSL_NO_TLSEXT
2089                 if (ctx2) 
2090                         SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
2091 #endif
2092                 }
2093
2094         BIO_printf(bio_s_out,"ACCEPT\n");
2095         (void)BIO_flush(bio_s_out);
2096         if (rev)
2097                 server_cb = rev_body;
2098         else if (www)
2099                 server_cb = www_body;
2100         else
2101                 server_cb = sv_body;
2102 #ifndef NO_SYS_UN_H
2103         if (unix_path)
2104                 {
2105                 if (unlink_unix_path)
2106                         unlink(unix_path);
2107                 do_server_unix(unix_path,&accept_socket,server_cb, context, naccept);
2108                 }
2109         else
2110 #endif
2111                 do_server(port,socket_type,&accept_socket,server_cb, context, naccept);
2112         print_stats(bio_s_out,ctx);
2113         ret=0;
2114 end:
2115         if (ctx != NULL) SSL_CTX_free(ctx);
2116         if (s_cert)
2117                 X509_free(s_cert);
2118         if (crls)
2119                 sk_X509_CRL_pop_free(crls, X509_CRL_free);
2120         if (s_dcert)
2121                 X509_free(s_dcert);
2122         if (s_key)
2123                 EVP_PKEY_free(s_key);
2124         if (s_dkey)
2125                 EVP_PKEY_free(s_dkey);
2126         if (s_chain)
2127                 sk_X509_pop_free(s_chain, X509_free);
2128         if (s_dchain)
2129                 sk_X509_pop_free(s_dchain, X509_free);
2130         if (pass)
2131                 OPENSSL_free(pass);
2132         if (dpass)
2133                 OPENSSL_free(dpass);
2134         if (vpm)
2135                 X509_VERIFY_PARAM_free(vpm);
2136         free_sessions();
2137 #ifndef OPENSSL_NO_TLSEXT
2138         if (tlscstatp.host)
2139                 OPENSSL_free(tlscstatp.host);
2140         if (tlscstatp.port)
2141                 OPENSSL_free(tlscstatp.port);
2142         if (tlscstatp.path)
2143                 OPENSSL_free(tlscstatp.path);
2144         if (ctx2 != NULL) SSL_CTX_free(ctx2);
2145         if (s_cert2)
2146                 X509_free(s_cert2);
2147         if (s_key2)
2148                 EVP_PKEY_free(s_key2);
2149         if (serverinfo_in != NULL)
2150                 BIO_free(serverinfo_in);
2151 # ifndef OPENSSL_NO_NEXTPROTONEG
2152         if (next_proto.data)
2153                 OPENSSL_free(next_proto.data);
2154 # endif
2155         if (alpn_ctx.data)
2156                 OPENSSL_free(alpn_ctx.data);
2157 #endif
2158         ssl_excert_free(exc);
2159         if (ssl_args)
2160                 sk_OPENSSL_STRING_free(ssl_args);
2161         if (cctx)
2162                 SSL_CONF_CTX_free(cctx);
2163 #ifndef OPENSSL_NO_JPAKE
2164         if (jpake_secret && psk_key)
2165                 OPENSSL_free(psk_key);
2166 #endif
2167         if (bio_s_out != NULL)
2168                 {
2169                 BIO_free(bio_s_out);
2170                 bio_s_out=NULL;
2171                 }
2172         if (bio_s_msg != NULL)
2173                 {
2174                 BIO_free(bio_s_msg);
2175                 bio_s_msg = NULL;
2176                 }
2177         apps_shutdown();
2178         OPENSSL_EXIT(ret);
2179         }
2180
2181 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
2182         {
2183         BIO_printf(bio,"%4ld items in the session cache\n",
2184                 SSL_CTX_sess_number(ssl_ctx));
2185         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
2186                 SSL_CTX_sess_connect(ssl_ctx));
2187         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
2188                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
2189         BIO_printf(bio,"%4ld client connects that finished\n",
2190                 SSL_CTX_sess_connect_good(ssl_ctx));
2191         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
2192                 SSL_CTX_sess_accept(ssl_ctx));
2193         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
2194                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
2195         BIO_printf(bio,"%4ld server accepts that finished\n",
2196                 SSL_CTX_sess_accept_good(ssl_ctx));
2197         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
2198         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
2199         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
2200         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
2201         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
2202                 SSL_CTX_sess_cache_full(ssl_ctx),
2203                 SSL_CTX_sess_get_cache_size(ssl_ctx));
2204         }
2205
2206 static int sv_body(char *hostname, int s, int stype, unsigned char *context)
2207         {
2208         char *buf=NULL;
2209         fd_set readfds;
2210         int ret=1,width;
2211         int k,i;
2212         unsigned long l;
2213         SSL *con=NULL;
2214         BIO *sbio;
2215 #ifndef OPENSSL_NO_KRB5
2216         KSSL_CTX *kctx;
2217 #endif
2218         struct timeval timeout;
2219 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
2220         struct timeval tv;
2221 #else
2222         struct timeval *timeoutp;
2223 #endif
2224
2225         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
2226                 {
2227                 BIO_printf(bio_err,"out of memory\n");
2228                 goto err;
2229                 }
2230 #ifdef FIONBIO  
2231         if (s_nbio)
2232                 {
2233                 unsigned long sl=1;
2234
2235                 if (!s_quiet)
2236                         BIO_printf(bio_err,"turning on non blocking io\n");
2237                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2238                         ERR_print_errors(bio_err);
2239                 }
2240 #endif
2241
2242         if (con == NULL) {
2243                 con=SSL_new(ctx);
2244 #ifndef OPENSSL_NO_TLSEXT
2245         if (s_tlsextdebug)
2246                 {
2247                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2248                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2249                 }
2250         if (s_tlsextstatus)
2251                 {
2252                 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
2253                 tlscstatp.err = bio_err;
2254                 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
2255                 }
2256 #endif
2257 #ifndef OPENSSL_NO_KRB5
2258                 if ((kctx = kssl_ctx_new()) != NULL)
2259                         {
2260                         SSL_set0_kssl_ctx(con, kctx);
2261                         kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2262                         kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2263                         }
2264 #endif  /* OPENSSL_NO_KRB5 */
2265                 if(context)
2266                       SSL_set_session_id_context(con, context,
2267                                                  strlen((char *)context));
2268         }
2269         SSL_clear(con);
2270 #if 0
2271 #ifdef TLSEXT_TYPE_opaque_prf_input
2272         SSL_set_tlsext_opaque_prf_input(con, "Test server", 11);
2273 #endif
2274 #endif
2275
2276         if (stype == SOCK_DGRAM)
2277                 {
2278
2279                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
2280
2281                 if (enable_timeouts)
2282                         {
2283                         timeout.tv_sec = 0;
2284                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2285                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2286                         
2287                         timeout.tv_sec = 0;
2288                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
2289                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2290                         }
2291
2292                 if (socket_mtu > 28)
2293                         {
2294                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2295                         SSL_set_mtu(con, socket_mtu - 28);
2296                         }
2297                 else
2298                         /* want to do MTU discovery */
2299                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2300
2301         /* turn on cookie exchange */
2302         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2303                 }
2304         else
2305                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
2306
2307         if (s_nbio_test)
2308                 {
2309                 BIO *test;
2310
2311                 test=BIO_new(BIO_f_nbio_test());
2312                 sbio=BIO_push(test,sbio);
2313                 }
2314 #ifndef OPENSSL_NO_JPAKE
2315         if(jpake_secret)
2316                 jpake_server_auth(bio_s_out, sbio, jpake_secret);
2317 #endif
2318
2319         SSL_set_bio(con,sbio,sbio);
2320         SSL_set_accept_state(con);
2321         /* SSL_set_fd(con,s); */
2322
2323         if (s_debug)
2324                 {
2325                 SSL_set_debug(con, 1);
2326                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2327                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2328                 }
2329         if (s_msg)
2330                 {
2331 #ifndef OPENSSL_NO_SSL_TRACE
2332                 if (s_msg == 2)
2333                         SSL_set_msg_callback(con, SSL_trace);
2334                 else
2335 #endif
2336                         SSL_set_msg_callback(con, msg_cb);
2337                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2338                 }
2339 #ifndef OPENSSL_NO_TLSEXT
2340         if (s_tlsextdebug)
2341                 {
2342                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2343                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2344                 }
2345 #endif
2346
2347         width=s+1;
2348         for (;;)
2349                 {
2350                 int read_from_terminal;
2351                 int read_from_sslcon;
2352
2353                 read_from_terminal = 0;
2354                 read_from_sslcon = SSL_pending(con);
2355
2356                 if (!read_from_sslcon)
2357                         {
2358                         FD_ZERO(&readfds);
2359 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_BEOS_R5)
2360                         openssl_fdset(fileno(stdin),&readfds);
2361 #endif
2362                         openssl_fdset(s,&readfds);
2363                         /* Note: under VMS with SOCKETSHR the second parameter is
2364                          * currently of type (int *) whereas under other systems
2365                          * it is (void *) if you don't have a cast it will choke
2366                          * the compiler: if you do have a cast then you can either
2367                          * go for (int *) or (void *).
2368                          */
2369 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
2370                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
2371                          * on sockets. As a workaround we timeout the select every
2372                          * second and check for any keypress. In a proper Windows
2373                          * application we wouldn't do this because it is inefficient.
2374                          */
2375                         tv.tv_sec = 1;
2376                         tv.tv_usec = 0;
2377                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2378                         if((i < 0) || (!i && !_kbhit() ) )continue;
2379                         if(_kbhit())
2380                                 read_from_terminal = 1;
2381 #elif defined(OPENSSL_SYS_BEOS_R5)
2382                         /* Under BeOS-R5 the situation is similar to DOS */
2383                         tv.tv_sec = 1;
2384                         tv.tv_usec = 0;
2385                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
2386                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2387                         if ((i < 0) || (!i && read(fileno(stdin), buf, 0) < 0))
2388                                 continue;
2389                         if (read(fileno(stdin), buf, 0) >= 0)
2390                                 read_from_terminal = 1;
2391                         (void)fcntl(fileno(stdin), F_SETFL, 0);
2392 #else
2393                         if ((SSL_version(con) == DTLS1_VERSION) &&
2394                                 DTLSv1_get_timeout(con, &timeout))
2395                                 timeoutp = &timeout;
2396                         else
2397                                 timeoutp = NULL;
2398
2399                         i=select(width,(void *)&readfds,NULL,NULL,timeoutp);
2400
2401                         if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
2402                                 {
2403                                 BIO_printf(bio_err,"TIMEOUT occurred\n");
2404                                 }
2405
2406                         if (i <= 0) continue;
2407                         if (FD_ISSET(fileno(stdin),&readfds))
2408                                 read_from_terminal = 1;
2409 #endif
2410                         if (FD_ISSET(s,&readfds))
2411                                 read_from_sslcon = 1;
2412                         }
2413                 if (read_from_terminal)
2414                         {
2415                         if (s_crlf)
2416                                 {
2417                                 int j, lf_num;
2418
2419                                 i=raw_read_stdin(buf, bufsize/2);
2420                                 lf_num = 0;
2421                                 /* both loops are skipped when i <= 0 */
2422                                 for (j = 0; j < i; j++)
2423                                         if (buf[j] == '\n')
2424                                                 lf_num++;
2425                                 for (j = i-1; j >= 0; j--)
2426                                         {
2427                                         buf[j+lf_num] = buf[j];
2428                                         if (buf[j] == '\n')
2429                                                 {
2430                                                 lf_num--;
2431                                                 i++;
2432                                                 buf[j+lf_num] = '\r';
2433                                                 }
2434                                         }
2435                                 assert(lf_num == 0);
2436                                 }
2437                         else
2438                                 i=raw_read_stdin(buf,bufsize);
2439                         if (!s_quiet && !s_brief)
2440                                 {
2441                                 if ((i <= 0) || (buf[0] == 'Q'))
2442                                         {
2443                                         BIO_printf(bio_s_out,"DONE\n");
2444                                         SHUTDOWN(s);
2445                                         close_accept_socket();
2446                                         ret= -11;
2447                                         goto err;
2448                                         }
2449                                 if ((i <= 0) || (buf[0] == 'q'))
2450                                         {
2451                                         BIO_printf(bio_s_out,"DONE\n");
2452                                         if (SSL_version(con) != DTLS1_VERSION)
2453                         SHUTDOWN(s);
2454         /*                              close_accept_socket();
2455                                         ret= -11;*/
2456                                         goto err;
2457                                         }
2458
2459 #ifndef OPENSSL_NO_HEARTBEATS
2460                                 if ((buf[0] == 'B') &&
2461                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2462                                         {
2463                                         BIO_printf(bio_err,"HEARTBEATING\n");
2464                                         SSL_heartbeat(con);
2465                                         i=0;
2466                                         continue;
2467                                         }
2468 #endif
2469                                 if ((buf[0] == 'r') && 
2470                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2471                                         {
2472                                         SSL_renegotiate(con);
2473                                         i=SSL_do_handshake(con);
2474                                         printf("SSL_do_handshake -> %d\n",i);
2475                                         i=0; /*13; */
2476                                         continue;
2477                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
2478                                         }
2479                                 if ((buf[0] == 'R') &&
2480                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2481                                         {
2482                                         SSL_set_verify(con,
2483                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2484                                         SSL_renegotiate(con);
2485                                         i=SSL_do_handshake(con);
2486                                         printf("SSL_do_handshake -> %d\n",i);
2487                                         i=0; /* 13; */
2488                                         continue;
2489                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
2490                                         }
2491                                 if (buf[0] == 'P')
2492                                         {
2493                                         static const char *str="Lets print some clear text\n";
2494                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
2495                                         }
2496                                 if (buf[0] == 'S')
2497                                         {
2498                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
2499                                         }
2500                                 }
2501 #ifdef CHARSET_EBCDIC
2502                         ebcdic2ascii(buf,buf,i);
2503 #endif
2504                         l=k=0;
2505                         for (;;)
2506                                 {
2507                                 /* should do a select for the write */
2508 #ifdef RENEG
2509 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
2510 #endif
2511                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2512 #ifndef OPENSSL_NO_SRP
2513                                 while (SSL_get_error(con,k) == SSL_ERROR_WANT_X509_LOOKUP)
2514                                         {
2515                                         BIO_printf(bio_s_out,"LOOKUP renego during write\n");
2516                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2517                                         if (srp_callback_parm.user) 
2518                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2519                                         else 
2520                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2521                                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2522                                         }
2523 #endif
2524                                 switch (SSL_get_error(con,k))
2525                                         {
2526                                 case SSL_ERROR_NONE:
2527                                         break;
2528                                 case SSL_ERROR_WANT_WRITE:
2529                                 case SSL_ERROR_WANT_READ:
2530                                 case SSL_ERROR_WANT_X509_LOOKUP:
2531                                         BIO_printf(bio_s_out,"Write BLOCK\n");
2532                                         break;
2533                                 case SSL_ERROR_SYSCALL:
2534                                 case SSL_ERROR_SSL:
2535                                         BIO_printf(bio_s_out,"ERROR\n");
2536                                         ERR_print_errors(bio_err);
2537                                         ret=1;
2538                                         goto err;
2539                                         /* break; */
2540                                 case SSL_ERROR_ZERO_RETURN:
2541                                         BIO_printf(bio_s_out,"DONE\n");
2542                                         ret=1;
2543                                         goto err;
2544                                         }
2545                                 l+=k;
2546                                 i-=k;
2547                                 if (i <= 0) break;
2548                                 }
2549                         }
2550                 if (read_from_sslcon)
2551                         {
2552                         if (!SSL_is_init_finished(con))
2553                                 {
2554                                 i=init_ssl_connection(con);
2555                                 
2556                                 if (i < 0)
2557                                         {
2558                                         ret=0;
2559                                         goto err;
2560                                         }
2561                                 else if (i == 0)
2562                                         {
2563                                         ret=1;
2564                                         goto err;
2565                                         }
2566                                 }
2567                         else
2568                                 {
2569 again:  
2570                                 i=SSL_read(con,(char *)buf,bufsize);
2571 #ifndef OPENSSL_NO_SRP
2572                                 while (SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2573                                         {
2574                                         BIO_printf(bio_s_out,"LOOKUP renego during read\n");
2575                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2576                                         if (srp_callback_parm.user) 
2577                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2578                                         else 
2579                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2580                                         i=SSL_read(con,(char *)buf,bufsize);
2581                                         }
2582 #endif
2583                                 switch (SSL_get_error(con,i))
2584                                         {
2585                                 case SSL_ERROR_NONE:
2586 #ifdef CHARSET_EBCDIC
2587                                         ascii2ebcdic(buf,buf,i);
2588 #endif
2589                                         raw_write_stdout(buf,
2590                                                 (unsigned int)i);
2591                                         if (SSL_pending(con)) goto again;
2592                                         break;
2593                                 case SSL_ERROR_WANT_WRITE:
2594                                 case SSL_ERROR_WANT_READ:
2595                                         BIO_printf(bio_s_out,"Read BLOCK\n");
2596                                         break;
2597                                 case SSL_ERROR_SYSCALL:
2598                                 case SSL_ERROR_SSL:
2599                                         BIO_printf(bio_s_out,"ERROR\n");
2600                                         ERR_print_errors(bio_err);
2601                                         ret=1;
2602                                         goto err;
2603                                 case SSL_ERROR_ZERO_RETURN:
2604                                         BIO_printf(bio_s_out,"DONE\n");
2605                                         ret=1;
2606                                         goto err;
2607                                         }
2608                                 }
2609                         }
2610                 }
2611 err:
2612         if (con != NULL)
2613                 {
2614                 BIO_printf(bio_s_out,"shutting down SSL\n");
2615 #if 1
2616                 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2617 #else
2618                 SSL_shutdown(con);
2619 #endif
2620                 SSL_free(con);
2621                 }
2622         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
2623         if (buf != NULL)
2624                 {
2625                 OPENSSL_cleanse(buf,bufsize);
2626                 OPENSSL_free(buf);
2627                 }
2628         if (ret >= 0)
2629                 BIO_printf(bio_s_out,"ACCEPT\n");
2630         return(ret);
2631         }
2632
2633 static void close_accept_socket(void)
2634         {
2635         BIO_printf(bio_err,"shutdown accept socket\n");
2636         if (accept_socket >= 0)
2637                 {
2638                 SHUTDOWN2(accept_socket);
2639                 }
2640         }
2641
2642 static int init_ssl_connection(SSL *con)
2643         {
2644         int i;
2645         const char *str;
2646         X509 *peer;
2647         long verify_error;
2648         MS_STATIC char buf[BUFSIZ];
2649 #ifndef OPENSSL_NO_KRB5
2650         char *client_princ;
2651 #endif
2652 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2653         const unsigned char *next_proto_neg;
2654         unsigned next_proto_neg_len;
2655 #endif
2656         unsigned char *exportedkeymat;
2657
2658
2659         i=SSL_accept(con);
2660 #ifdef CERT_CB_TEST_RETRY
2661         {
2662         while (i <= 0 && SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP && SSL_state(con) == SSL3_ST_SR_CLNT_HELLO_C) 
2663                 {
2664                 fprintf(stderr, "LOOKUP from certificate callback during accept\n");
2665                 i=SSL_accept(con);
2666                 }
2667         }
2668 #endif
2669 #ifndef OPENSSL_NO_SRP
2670         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP) 
2671                 {
2672                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2673                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2674                         if (srp_callback_parm.user) 
2675                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2676                         else 
2677                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2678                         i=SSL_accept(con);
2679                 }
2680 #endif
2681
2682         if (i <= 0)
2683                 {
2684                 if (BIO_sock_should_retry(i))
2685                         {
2686                         BIO_printf(bio_s_out,"DELAY\n");
2687                         return(1);
2688                         }
2689
2690                 BIO_printf(bio_err,"ERROR\n");
2691                 verify_error=SSL_get_verify_result(con);
2692                 if (verify_error != X509_V_OK)
2693                         {
2694                         BIO_printf(bio_err,"verify error:%s\n",
2695                                 X509_verify_cert_error_string(verify_error));
2696                         }
2697                 /* Always print any error messages */
2698                 ERR_print_errors(bio_err);
2699                 return(0);
2700                 }
2701
2702         if (s_brief)
2703                 print_ssl_summary(bio_err, con);
2704
2705         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
2706
2707         peer=SSL_get_peer_certificate(con);
2708         if (peer != NULL)
2709                 {
2710                 BIO_printf(bio_s_out,"Client certificate\n");
2711                 PEM_write_bio_X509(bio_s_out,peer);
2712                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
2713                 BIO_printf(bio_s_out,"subject=%s\n",buf);
2714                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
2715                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
2716                 X509_free(peer);
2717                 }
2718
2719         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
2720                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
2721         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2722         ssl_print_sigalgs(bio_s_out, con);
2723 #ifndef OPENSSL_NO_EC
2724         ssl_print_point_formats(bio_s_out, con);
2725         ssl_print_curves(bio_s_out, con, 0);
2726 #endif
2727         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
2728
2729 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2730         SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2731         if (next_proto_neg)
2732                 {
2733                 BIO_printf(bio_s_out,"NEXTPROTO is ");
2734                 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2735                 BIO_printf(bio_s_out, "\n");
2736                 }
2737 #endif
2738         {
2739         SRTP_PROTECTION_PROFILE *srtp_profile
2740           = SSL_get_selected_srtp_profile(con);
2741
2742         if(srtp_profile)
2743                 BIO_printf(bio_s_out,"SRTP Extension negotiated, profile=%s\n",
2744                            srtp_profile->name);
2745         }
2746         if (SSL_cache_hit(con)) BIO_printf(bio_s_out,"Reused session-id\n");
2747         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
2748                 TLS1_FLAGS_TLS_PADDING_BUG)
2749                 BIO_printf(bio_s_out,
2750                            "Peer has incorrect TLSv1 block padding\n");
2751 #ifndef OPENSSL_NO_KRB5
2752         client_princ = kssl_ctx_get0_client_princ(SSL_get0_kssl_ctx(con));
2753         if (client_princ != NULL)
2754                 {
2755                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
2756                                                                 client_princ);
2757                 }
2758 #endif /* OPENSSL_NO_KRB5 */
2759         BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
2760                       SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
2761         if (keymatexportlabel != NULL)
2762                 {
2763                 BIO_printf(bio_s_out, "Keying material exporter:\n");
2764                 BIO_printf(bio_s_out, "    Label: '%s'\n", keymatexportlabel);
2765                 BIO_printf(bio_s_out, "    Length: %i bytes\n",
2766                            keymatexportlen);
2767                 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2768                 if (exportedkeymat != NULL)
2769                         {
2770                         if (!SSL_export_keying_material(con, exportedkeymat,
2771                                                         keymatexportlen,
2772                                                         keymatexportlabel,
2773                                                         strlen(keymatexportlabel),
2774                                                         NULL, 0, 0))
2775                                 {
2776                                 BIO_printf(bio_s_out, "    Error\n");
2777                                 }
2778                         else
2779                                 {
2780                                 BIO_printf(bio_s_out, "    Keying material: ");
2781                                 for (i=0; i<keymatexportlen; i++)
2782                                         BIO_printf(bio_s_out, "%02X",
2783                                                    exportedkeymat[i]);
2784                                 BIO_printf(bio_s_out, "\n");
2785                                 }
2786                         OPENSSL_free(exportedkeymat);
2787                         }
2788                 }
2789
2790         return(1);
2791         }
2792
2793 #ifndef OPENSSL_NO_DH
2794 static DH *load_dh_param(const char *dhfile)
2795         {
2796         DH *ret=NULL;
2797         BIO *bio;
2798
2799         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
2800                 goto err;
2801         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
2802 err:
2803         if (bio != NULL) BIO_free(bio);
2804         return(ret);
2805         }
2806 #endif
2807
2808 #if 0
2809 static int load_CA(SSL_CTX *ctx, char *file)
2810         {
2811         FILE *in;
2812         X509 *x=NULL;
2813
2814         if ((in=fopen(file,"r")) == NULL)
2815                 return(0);
2816
2817         for (;;)
2818                 {
2819                 if (PEM_read_X509(in,&x,NULL) == NULL)
2820                         break;
2821                 SSL_CTX_add_client_CA(ctx,x);
2822                 }
2823         if (x != NULL) X509_free(x);
2824         fclose(in);
2825         return(1);
2826         }
2827 #endif
2828
2829 static int www_body(char *hostname, int s, int stype, unsigned char *context)
2830         {
2831         char *buf=NULL;
2832         int ret=1;
2833         int i,j,k,dot;
2834         SSL *con;
2835         const SSL_CIPHER *c;
2836         BIO *io,*ssl_bio,*sbio;
2837 #ifndef OPENSSL_NO_KRB5
2838         KSSL_CTX *kctx;
2839 #endif
2840
2841         buf=OPENSSL_malloc(bufsize);
2842         if (buf == NULL) return(0);
2843         io=BIO_new(BIO_f_buffer());
2844         ssl_bio=BIO_new(BIO_f_ssl());
2845         if ((io == NULL) || (ssl_bio == NULL)) goto err;
2846
2847 #ifdef FIONBIO  
2848         if (s_nbio)
2849                 {
2850                 unsigned long sl=1;
2851
2852                 if (!s_quiet)
2853                         BIO_printf(bio_err,"turning on non blocking io\n");
2854                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2855                         ERR_print_errors(bio_err);
2856                 }
2857 #endif
2858
2859         /* lets make the output buffer a reasonable size */
2860         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
2861
2862         if ((con=SSL_new(ctx)) == NULL) goto err;
2863 #ifndef OPENSSL_NO_TLSEXT
2864                 if (s_tlsextdebug)
2865                         {
2866                         SSL_set_tlsext_debug_callback(con, tlsext_cb);
2867                         SSL_set_tlsext_debug_arg(con, bio_s_out);
2868                         }
2869 #endif
2870 #ifndef OPENSSL_NO_KRB5
2871         if ((kctx = kssl_ctx_new()) != NULL)
2872                 {
2873                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2874                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2875                 }
2876 #endif  /* OPENSSL_NO_KRB5 */
2877         if(context) SSL_set_session_id_context(con, context,
2878                                                strlen((char *)context));
2879
2880         sbio=BIO_new_socket(s,BIO_NOCLOSE);
2881         if (s_nbio_test)
2882                 {
2883                 BIO *test;
2884
2885                 test=BIO_new(BIO_f_nbio_test());
2886                 sbio=BIO_push(test,sbio);
2887                 }
2888         SSL_set_bio(con,sbio,sbio);
2889         SSL_set_accept_state(con);
2890
2891         /* SSL_set_fd(con,s); */
2892         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
2893         BIO_push(io,ssl_bio);
2894 #ifdef CHARSET_EBCDIC
2895         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
2896 #endif
2897
2898         if (s_debug)
2899                 {
2900                 SSL_set_debug(con, 1);
2901                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2902                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2903                 }
2904         if (s_msg)
2905                 {
2906 #ifndef OPENSSL_NO_SSL_TRACE
2907                 if (s_msg == 2)
2908                         SSL_set_msg_callback(con, SSL_trace);
2909                 else
2910 #endif
2911                         SSL_set_msg_callback(con, msg_cb);
2912                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2913                 }
2914
2915         for (;;)
2916                 {
2917                 if (hack)
2918                         {
2919                         i=SSL_accept(con);
2920 #ifndef OPENSSL_NO_SRP
2921                         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP) 
2922                 {
2923                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2924                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2925                         if (srp_callback_parm.user) 
2926                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2927                         else 
2928                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2929                         i=SSL_accept(con);
2930                 }
2931 #endif
2932                         switch (SSL_get_error(con,i))
2933                                 {
2934                         case SSL_ERROR_NONE:
2935                                 break;
2936                         case SSL_ERROR_WANT_WRITE:
2937                         case SSL_ERROR_WANT_READ:
2938                         case SSL_ERROR_WANT_X509_LOOKUP:
2939                                 continue;
2940                         case SSL_ERROR_SYSCALL:
2941                         case SSL_ERROR_SSL:
2942                         case SSL_ERROR_ZERO_RETURN:
2943                                 ret=1;
2944                                 goto err;
2945                                 /* break; */
2946                                 }
2947
2948                         SSL_renegotiate(con);
2949                         SSL_write(con,NULL,0);
2950                         }
2951
2952                 i=BIO_gets(io,buf,bufsize-1);
2953                 if (i < 0) /* error */
2954                         {
2955                         if (!BIO_should_retry(io))
2956                                 {
2957                                 if (!s_quiet)
2958                                         ERR_print_errors(bio_err);
2959                                 goto err;
2960                                 }
2961                         else
2962                                 {
2963                                 BIO_printf(bio_s_out,"read R BLOCK\n");
2964 #if defined(OPENSSL_SYS_NETWARE)
2965             delay(1000);
2966 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
2967                                 sleep(1);
2968 #endif
2969                                 continue;
2970                                 }
2971                         }
2972                 else if (i == 0) /* end of input */
2973                         {
2974                         ret=1;
2975                         goto end;
2976                         }
2977
2978                 /* else we have data */
2979                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
2980                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
2981                         {
2982                         char *p;
2983                         X509 *peer;
2984                         STACK_OF(SSL_CIPHER) *sk;
2985                         static const char *space="                          ";
2986
2987                 if (www == 1 && strncmp("GET /reneg", buf, 10) == 0)
2988                         {
2989                         if (strncmp("GET /renegcert", buf, 14) == 0)
2990                                 SSL_set_verify(con,
2991                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2992                         i=SSL_renegotiate(con);
2993                         BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n",i);
2994                         i=SSL_do_handshake(con);
2995                         if (i <= 0)
2996                                 {
2997                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
2998                                 ERR_print_errors(bio_err);
2999                                 goto err;
3000                                 }
3001                         /* EVIL HACK! */
3002                         SSL_set_state(con, SSL_ST_ACCEPT);
3003                         i=SSL_do_handshake(con);
3004                         BIO_printf(bio_s_out, "SSL_do_handshake -> %d\n",i);
3005                         if (i <= 0)
3006                                 {
3007                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
3008                                 ERR_print_errors(bio_err);
3009                                 goto err;
3010                                 }
3011                         }
3012
3013                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3014                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
3015                         BIO_puts(io,"<pre>\n");
3016 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
3017                         BIO_puts(io,"\n");
3018                         for (i=0; i<local_argc; i++)
3019                                 {
3020                                 BIO_puts(io,local_argv[i]);
3021                                 BIO_write(io," ",1);
3022                                 }
3023                         BIO_puts(io,"\n");
3024
3025                         BIO_printf(io,
3026                                 "Secure Renegotiation IS%s supported\n",
3027                                 SSL_get_secure_renegotiation_support(con) ?
3028                                                         "" : " NOT");
3029
3030                         /* The following is evil and should not really
3031                          * be done */
3032                         BIO_printf(io,"Ciphers supported in s_server binary\n");
3033                         sk=SSL_get_ciphers(con);
3034                         j=sk_SSL_CIPHER_num(sk);
3035                         for (i=0; i<j; i++)
3036                                 {
3037                                 c=sk_SSL_CIPHER_value(sk,i);
3038                                 BIO_printf(io,"%-11s:%-25s",
3039                                         SSL_CIPHER_get_version(c),
3040                                         SSL_CIPHER_get_name(c));
3041                                 if ((((i+1)%2) == 0) && (i+1 != j))
3042                                         BIO_puts(io,"\n");
3043                                 }
3044                         BIO_puts(io,"\n");
3045                         p=SSL_get_shared_ciphers(con,buf,bufsize);
3046                         if (p != NULL)
3047                                 {
3048                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
3049                                 j=i=0;
3050                                 while (*p)
3051                                         {
3052                                         if (*p == ':')
3053                                                 {
3054                                                 BIO_write(io,space,26-j);
3055                                                 i++;
3056                                                 j=0;
3057                                                 BIO_write(io,((i%3)?" ":"\n"),1);
3058                                                 }
3059                                         else
3060                                                 {
3061                                                 BIO_write(io,p,1);
3062                                                 j++;
3063                                                 }
3064                                         p++;
3065                                         }
3066                                 BIO_puts(io,"\n");
3067                                 }
3068                         ssl_print_sigalgs(io, con);
3069 #ifndef OPENSSL_NO_EC
3070                         ssl_print_curves(io, con, 0);
3071 #endif
3072                         BIO_printf(io,(SSL_cache_hit(con)
3073                                 ?"---\nReused, "
3074                                 :"---\nNew, "));
3075                         c=SSL_get_current_cipher(con);
3076                         BIO_printf(io,"%s, Cipher is %s\n",
3077                                 SSL_CIPHER_get_version(c),
3078                                 SSL_CIPHER_get_name(c));
3079                         SSL_SESSION_print(io,SSL_get_session(con));
3080                         BIO_printf(io,"---\n");
3081                         print_stats(io,SSL_get_SSL_CTX(con));
3082                         BIO_printf(io,"---\n");
3083                         peer=SSL_get_peer_certificate(con);
3084                         if (peer != NULL)
3085                                 {
3086                                 BIO_printf(io,"Client certificate\n");
3087                                 X509_print(io,peer);
3088                                 PEM_write_bio_X509(io,peer);
3089                                 }
3090                         else
3091                                 BIO_puts(io,"no client certificate available\n");
3092                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
3093                         break;
3094                         }
3095                 else if ((www == 2 || www == 3)
3096                          && (strncmp("GET /",buf,5) == 0))
3097                         {
3098                         BIO *file;
3099                         char *p,*e;
3100                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
3101
3102                         /* skip the '/' */
3103                         p= &(buf[5]);
3104
3105                         dot = 1;
3106                         for (e=p; *e != '\0'; e++)
3107                                 {
3108                                 if (e[0] == ' ')
3109                                         break;
3110
3111                                 switch (dot)
3112                                         {
3113                                 case 1:
3114                                         dot = (e[0] == '.') ? 2 : 0;
3115                                         break;
3116                                 case 2:
3117                                         dot = (e[0] == '.') ? 3 : 0;
3118                                         break;
3119                                 case 3:
3120                                         dot = (e[0] == '/') ? -1 : 0;
3121                                         break;
3122                                         }
3123                                 if (dot == 0)
3124                                         dot = (e[0] == '/') ? 1 : 0;
3125                                 }
3126                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
3127
3128                         if (*e == '\0')
3129                                 {
3130                                 BIO_puts(io,text);
3131                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
3132                                 break;
3133                                 }
3134                         *e='\0';
3135
3136                         if (dot)
3137                                 {
3138                                 BIO_puts(io,text);
3139                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
3140                                 break;
3141                                 }
3142
3143                         if (*p == '/')
3144                                 {
3145                                 BIO_puts(io,text);
3146                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
3147                                 break;
3148                                 }
3149
3150 #if 0
3151                         /* append if a directory lookup */
3152                         if (e[-1] == '/')
3153                                 strcat(p,"index.html");
3154 #endif
3155
3156                         /* if a directory, do the index thang */
3157                         if (app_isdir(p)>0)
3158                                 {
3159 #if 0 /* must check buffer size */
3160                                 strcat(p,"/index.html");
3161 #else
3162                                 BIO_puts(io,text);
3163                                 BIO_printf(io,"'%s' is a directory\r\n",p);
3164                                 break;
3165 #endif
3166                                 }
3167
3168                         if ((file=BIO_new_file(p,"r")) == NULL)
3169                                 {
3170                                 BIO_puts(io,text);
3171                                 BIO_printf(io,"Error opening '%s'\r\n",p);
3172                                 ERR_print_errors(io);
3173                                 break;
3174                                 }
3175
3176                         if (!s_quiet)
3177                                 BIO_printf(bio_err,"FILE:%s\n",p);
3178
3179                         if (www == 2)
3180                                 {
3181                                 i=strlen(p);
3182                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
3183                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
3184                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
3185                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3186                                 else
3187                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
3188                                 }
3189                         /* send the file */
3190                         for (;;)
3191                                 {
3192                                 i=BIO_read(file,buf,bufsize);
3193                                 if (i <= 0) break;
3194
3195 #ifdef RENEG
3196                                 total_bytes+=i;
3197                                 fprintf(stderr,"%d\n",i);
3198                                 if (total_bytes > 3*1024)
3199                                         {
3200                                         total_bytes=0;
3201                                         fprintf(stderr,"RENEGOTIATE\n");
3202                                         SSL_renegotiate(con);
3203                                         }
3204 #endif
3205
3206                                 for (j=0; j<i; )
3207                                         {
3208 #ifdef RENEG
3209 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
3210 #endif
3211                                         k=BIO_write(io,&(buf[j]),i-j);
3212                                         if (k <= 0)
3213                                                 {
3214                                                 if (!BIO_should_retry(io))
3215                                                         goto write_error;
3216                                                 else
3217                                                         {
3218                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
3219                                                         }
3220                                                 }
3221                                         else
3222                                                 {
3223                                                 j+=k;
3224                                                 }
3225                                         }
3226                                 }
3227 write_error:
3228                         BIO_free(file);
3229                         break;
3230                         }
3231                 }
3232
3233         for (;;)
3234                 {
3235                 i=(int)BIO_flush(io);
3236                 if (i <= 0)
3237                         {
3238                         if (!BIO_should_retry(io))
3239                                 break;
3240                         }
3241                 else
3242                         break;
3243                 }
3244 end:
3245 #if 1
3246         /* make sure we re-use sessions */
3247         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
3248 #else
3249         /* This kills performance */
3250 /*      SSL_shutdown(con); A shutdown gets sent in the
3251  *      BIO_free_all(io) procession */
3252 #endif
3253
3254 err:
3255
3256         if (ret >= 0)
3257                 BIO_printf(bio_s_out,"ACCEPT\n");
3258
3259         if (buf != NULL) OPENSSL_free(buf);
3260         if (io != NULL) BIO_free_all(io);
3261 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
3262         return(ret);
3263         }
3264
3265 static int rev_body(char *hostname, int s, int stype, unsigned char *context)
3266         {
3267         char *buf=NULL;
3268         int i;
3269         int ret=1;
3270         SSL *con;
3271         BIO *io,*ssl_bio,*sbio;
3272 #ifndef OPENSSL_NO_KRB5
3273         KSSL_CTX *kctx;
3274 #endif
3275
3276         buf=OPENSSL_malloc(bufsize);
3277         if (buf == NULL) return(0);
3278         io=BIO_new(BIO_f_buffer());
3279         ssl_bio=BIO_new(BIO_f_ssl());
3280         if ((io == NULL) || (ssl_bio == NULL)) goto err;
3281
3282         /* lets make the output buffer a reasonable size */
3283         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
3284
3285         if ((con=SSL_new(ctx)) == NULL) goto err;
3286 #ifndef OPENSSL_NO_TLSEXT
3287         if (s_tlsextdebug)
3288                 {
3289                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
3290                 SSL_set_tlsext_debug_arg(con, bio_s_out);
3291                 }
3292 #endif
3293 #ifndef OPENSSL_NO_KRB5
3294         if ((kctx = kssl_ctx_new()) != NULL)
3295                 {
3296                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
3297                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
3298                 }
3299 #endif  /* OPENSSL_NO_KRB5 */
3300         if(context) SSL_set_session_id_context(con, context,
3301                                                strlen((char *)context));
3302
3303         sbio=BIO_new_socket(s,BIO_NOCLOSE);
3304         SSL_set_bio(con,sbio,sbio);
3305         SSL_set_accept_state(con);
3306
3307         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
3308         BIO_push(io,ssl_bio);
3309 #ifdef CHARSET_EBCDIC
3310         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
3311 #endif
3312
3313         if (s_debug)
3314                 {
3315                 SSL_set_debug(con, 1);
3316                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
3317                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
3318                 }
3319         if (s_msg)
3320                 {
3321 #ifndef OPENSSL_NO_SSL_TRACE
3322                 if (s_msg == 2)
3323                         SSL_set_msg_callback(con, SSL_trace);
3324                 else
3325 #endif
3326                         SSL_set_msg_callback(con, msg_cb);
3327                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3328                 }
3329
3330         for (;;)
3331                 {
3332                 i = BIO_do_handshake(io);
3333                 if (i > 0)
3334                         break;
3335                 if (!BIO_should_retry(io))
3336                         {
3337                         BIO_puts(bio_err, "CONNECTION FAILURE\n");
3338                         ERR_print_errors(bio_err);
3339                         goto end;
3340                         }
3341                 }
3342         BIO_printf(bio_err, "CONNECTION ESTABLISHED\n");
3343         print_ssl_summary(bio_err, con);
3344
3345         for (;;)
3346                 {
3347                 i=BIO_gets(io,buf,bufsize-1);
3348                 if (i < 0) /* error */
3349                         {
3350                         if (!BIO_should_retry(io))
3351                                 {
3352                                 if (!s_quiet)
3353                                         ERR_print_errors(bio_err);
3354                                 goto err;
3355                                 }
3356                         else
3357                                 {
3358                                 BIO_printf(bio_s_out,"read R BLOCK\n");
3359 #if defined(OPENSSL_SYS_NETWARE)
3360             delay(1000);
3361 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
3362                                 sleep(1);
3363 #endif
3364                                 continue;
3365                                 }
3366                         }
3367                 else if (i == 0) /* end of input */
3368                         {
3369                         ret=1;
3370                         BIO_printf(bio_err, "CONNECTION CLOSED\n");
3371                         goto end;
3372                         }
3373                 else
3374                         {
3375                         char *p = buf + i - 1;
3376                         while(i && (*p == '\n' || *p == '\r'))
3377                                 {
3378                                 p--;
3379                                 i--;
3380                                 }
3381                         if (!s_ign_eof && i == 5 && !strncmp(buf, "CLOSE", 5))
3382                                 {
3383                                 ret = 1;
3384                                 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3385                                 goto end;
3386                                 }
3387                         BUF_reverse((unsigned char *)buf, NULL, i);
3388                         buf[i] = '\n';
3389                         BIO_write(io, buf, i + 1);
3390                         for (;;)
3391                                 {
3392                                 i = BIO_flush(io);
3393                                 if (i > 0)
3394                                         break;
3395                                 if (!BIO_should_retry(io))
3396                                         goto end;
3397                                 }
3398                         }
3399                 }
3400 end:
3401         /* make sure we re-use sessions */
3402         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
3403
3404 err:
3405
3406         if (buf != NULL) OPENSSL_free(buf);
3407         if (io != NULL) BIO_free_all(io);
3408         return(ret);
3409         }
3410
3411 #ifndef OPENSSL_NO_RSA
3412 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
3413         {
3414         BIGNUM *bn = NULL;
3415         static RSA *rsa_tmp=NULL;
3416
3417         if (!rsa_tmp && ((bn = BN_new()) == NULL))
3418                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
3419         if (!rsa_tmp && bn)
3420                 {
3421                 if (!s_quiet)
3422                         {
3423                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
3424                         (void)BIO_flush(bio_err);
3425                         }
3426                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
3427                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
3428                         {
3429                         if(rsa_tmp) RSA_free(rsa_tmp);
3430                         rsa_tmp = NULL;
3431                         }
3432                 if (!s_quiet)
3433                         {
3434                         BIO_printf(bio_err,"\n");
3435                         (void)BIO_flush(bio_err);
3436                         }
3437                 BN_free(bn);
3438                 }
3439         return(rsa_tmp);
3440         }
3441 #endif
3442
3443 #define MAX_SESSION_ID_ATTEMPTS 10
3444 static int generate_session_id(const SSL *ssl, unsigned char *id,
3445                                 unsigned int *id_len)
3446         {
3447         unsigned int count = 0;
3448         do      {
3449                 RAND_pseudo_bytes(id, *id_len);
3450                 /* Prefix the session_id with the required prefix. NB: If our
3451                  * prefix is too long, clip it - but there will be worse effects
3452                  * anyway, eg. the server could only possibly create 1 session
3453                  * ID (ie. the prefix!) so all future session negotiations will
3454                  * fail due to conflicts. */
3455                 memcpy(id, session_id_prefix,
3456                         (strlen(session_id_prefix) < *id_len) ?
3457                         strlen(session_id_prefix) : *id_len);
3458                 }
3459         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
3460                 (++count < MAX_SESSION_ID_ATTEMPTS));
3461         if(count >= MAX_SESSION_ID_ATTEMPTS)
3462                 return 0;
3463         return 1;
3464         }
3465
3466 /* By default s_server uses an in-memory cache which caches SSL_SESSION
3467  * structures without any serialisation. This hides some bugs which only
3468  * become apparent in deployed servers. By implementing a basic external
3469  * session cache some issues can be debugged using s_server.
3470  */
3471
3472 typedef struct simple_ssl_session_st
3473         {
3474         unsigned char *id;
3475         unsigned int idlen;
3476         unsigned char *der;
3477         int derlen;
3478         struct simple_ssl_session_st *next;
3479         } simple_ssl_session;
3480
3481 static simple_ssl_session *first = NULL;
3482
3483 static int add_session(SSL *ssl, SSL_SESSION *session)
3484         {
3485         simple_ssl_session *sess;
3486         unsigned char *p;
3487
3488         sess = OPENSSL_malloc(sizeof(simple_ssl_session));
3489
3490         SSL_SESSION_get_id(session, &sess->idlen);
3491         sess->derlen = i2d_SSL_SESSION(session, NULL);
3492
3493         sess->id = BUF_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen);
3494
3495         sess->der = OPENSSL_malloc(sess->derlen);
3496         p = sess->der;
3497         i2d_SSL_SESSION(session, &p);
3498
3499         sess->next = first;
3500         first = sess;
3501         BIO_printf(bio_err, "New session added to external cache\n");
3502         return 0;
3503         }
3504
3505 static SSL_SESSION *get_session(SSL *ssl, unsigned char *id, int idlen,
3506                                         int *do_copy)
3507         {
3508         simple_ssl_session *sess;
3509         *do_copy = 0;
3510         for (sess = first; sess; sess = sess->next)
3511                 {
3512                 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen))
3513                         {
3514                         const unsigned char *p = sess->der;
3515                         BIO_printf(bio_err, "Lookup session: cache hit\n");
3516                         return d2i_SSL_SESSION(NULL, &p, sess->derlen);
3517                         }
3518                 }
3519         BIO_printf(bio_err, "Lookup session: cache miss\n");
3520         return NULL;
3521         }
3522
3523 static void del_session(SSL_CTX *sctx, SSL_SESSION *session)
3524         {
3525         simple_ssl_session *sess, *prev = NULL;
3526         const unsigned char *id;
3527         unsigned int idlen;
3528         id = SSL_SESSION_get_id(session, &idlen);       
3529         for (sess = first; sess; sess = sess->next)
3530                 {
3531                 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen))
3532                         {
3533                         if(prev)
3534                                 prev->next = sess->next;
3535                         else
3536                                 first = sess->next;
3537                         OPENSSL_free(sess->id);
3538                         OPENSSL_free(sess->der);
3539                         OPENSSL_free(sess);
3540                         return;
3541                         }
3542                 prev = sess;
3543                 }
3544         }
3545
3546 static void init_session_cache_ctx(SSL_CTX *sctx)
3547         {
3548         SSL_CTX_set_session_cache_mode(sctx,
3549                         SSL_SESS_CACHE_NO_INTERNAL|SSL_SESS_CACHE_SERVER);
3550         SSL_CTX_sess_set_new_cb(sctx, add_session);
3551         SSL_CTX_sess_set_get_cb(sctx, get_session);
3552         SSL_CTX_sess_set_remove_cb(sctx, del_session);
3553         }
3554
3555 static void free_sessions(void)
3556         {
3557         simple_ssl_session *sess, *tsess;
3558         for (sess = first; sess;)
3559                 {
3560                 OPENSSL_free(sess->id);
3561                 OPENSSL_free(sess->der);
3562                 tsess = sess;
3563                 sess = sess->next;
3564                 OPENSSL_free(tsess);
3565                 }
3566         first = NULL;
3567         }