xref: /freebsd/crypto/openssl/apps/s_server.c (revision b6a05070fa77edc7ce6e60b61623fd806e807be6)
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 /*
144  * Until the key-gen callbacks are modified to use newer prototypes, we allow
145  * deprecated functions for openssl-internal code
146  */
147 #ifdef OPENSSL_NO_DEPRECATED
148 # undef OPENSSL_NO_DEPRECATED
149 #endif
150 
151 #include <assert.h>
152 #include <ctype.h>
153 #include <stdio.h>
154 #include <stdlib.h>
155 #include <string.h>
156 
157 #include <openssl/e_os2.h>
158 #ifdef OPENSSL_NO_STDIO
159 # define APPS_WIN16
160 #endif
161 
162 /* conflicts with winsock2 stuff on netware */
163 #if !defined(OPENSSL_SYS_NETWARE)
164 # include <sys/types.h>
165 #endif
166 
167 /*
168  * With IPv6, it looks like Digital has mixed up the proper order of
169  * recursive header file inclusion, resulting in the compiler complaining
170  * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
171  * needed to have fileno() declared correctly...  So let's define u_int
172  */
173 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
174 # define __U_INT
175 typedef unsigned int u_int;
176 #endif
177 
178 #include <openssl/lhash.h>
179 #include <openssl/bn.h>
180 #define USE_SOCKETS
181 #include "apps.h"
182 #include <openssl/err.h>
183 #include <openssl/pem.h>
184 #include <openssl/x509.h>
185 #include <openssl/ssl.h>
186 #include <openssl/rand.h>
187 #include <openssl/ocsp.h>
188 #ifndef OPENSSL_NO_DH
189 # include <openssl/dh.h>
190 #endif
191 #ifndef OPENSSL_NO_RSA
192 # include <openssl/rsa.h>
193 #endif
194 #ifndef OPENSSL_NO_SRP
195 # include <openssl/srp.h>
196 #endif
197 #include "s_apps.h"
198 #include "timeouts.h"
199 
200 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
201 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
202 # undef FIONBIO
203 #endif
204 
205 #if defined(OPENSSL_SYS_BEOS_R5)
206 # include <fcntl.h>
207 #endif
208 
209 #ifndef OPENSSL_NO_RSA
210 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
211 #endif
212 static int sv_body(char *hostname, int s, int stype, unsigned char *context);
213 static int www_body(char *hostname, int s, int stype, unsigned char *context);
214 static int rev_body(char *hostname, int s, int stype, unsigned char *context);
215 static void close_accept_socket(void);
216 static void sv_usage(void);
217 static int init_ssl_connection(SSL *s);
218 static void print_stats(BIO *bp, SSL_CTX *ctx);
219 static int generate_session_id(const SSL *ssl, unsigned char *id,
220                                unsigned int *id_len);
221 static void init_session_cache_ctx(SSL_CTX *sctx);
222 static void free_sessions(void);
223 #ifndef OPENSSL_NO_DH
224 static DH *load_dh_param(const char *dhfile);
225 static DH *get_dh2048(void);
226 #endif
227 
228 #ifdef MONOLITH
229 static void s_server_init(void);
230 #endif
231 
232 #ifndef OPENSSL_NO_DH
233 static unsigned char dh2048_p[] = {
234     0xF6,0x42,0x57,0xB7,0x08,0x7F,0x08,0x17,0x72,0xA2,0xBA,0xD6,
235     0xA9,0x42,0xF3,0x05,0xE8,0xF9,0x53,0x11,0x39,0x4F,0xB6,0xF1,
236     0x6E,0xB9,0x4B,0x38,0x20,0xDA,0x01,0xA7,0x56,0xA3,0x14,0xE9,
237     0x8F,0x40,0x55,0xF3,0xD0,0x07,0xC6,0xCB,0x43,0xA9,0x94,0xAD,
238     0xF7,0x4C,0x64,0x86,0x49,0xF8,0x0C,0x83,0xBD,0x65,0xE9,0x17,
239     0xD4,0xA1,0xD3,0x50,0xF8,0xF5,0x59,0x5F,0xDC,0x76,0x52,0x4F,
240     0x3D,0x3D,0x8D,0xDB,0xCE,0x99,0xE1,0x57,0x92,0x59,0xCD,0xFD,
241     0xB8,0xAE,0x74,0x4F,0xC5,0xFC,0x76,0xBC,0x83,0xC5,0x47,0x30,
242     0x61,0xCE,0x7C,0xC9,0x66,0xFF,0x15,0xF9,0xBB,0xFD,0x91,0x5E,
243     0xC7,0x01,0xAA,0xD3,0x5B,0x9E,0x8D,0xA0,0xA5,0x72,0x3A,0xD4,
244     0x1A,0xF0,0xBF,0x46,0x00,0x58,0x2B,0xE5,0xF4,0x88,0xFD,0x58,
245     0x4E,0x49,0xDB,0xCD,0x20,0xB4,0x9D,0xE4,0x91,0x07,0x36,0x6B,
246     0x33,0x6C,0x38,0x0D,0x45,0x1D,0x0F,0x7C,0x88,0xB3,0x1C,0x7C,
247     0x5B,0x2D,0x8E,0xF6,0xF3,0xC9,0x23,0xC0,0x43,0xF0,0xA5,0x5B,
248     0x18,0x8D,0x8E,0xBB,0x55,0x8C,0xB8,0x5D,0x38,0xD3,0x34,0xFD,
249     0x7C,0x17,0x57,0x43,0xA3,0x1D,0x18,0x6C,0xDE,0x33,0x21,0x2C,
250     0xB5,0x2A,0xFF,0x3C,0xE1,0xB1,0x29,0x40,0x18,0x11,0x8D,0x7C,
251     0x84,0xA7,0x0A,0x72,0xD6,0x86,0xC4,0x03,0x19,0xC8,0x07,0x29,
252     0x7A,0xCA,0x95,0x0C,0xD9,0x96,0x9F,0xAB,0xD0,0x0A,0x50,0x9B,
253     0x02,0x46,0xD3,0x08,0x3D,0x66,0xA4,0x5D,0x41,0x9F,0x9C,0x7C,
254     0xBD,0x89,0x4B,0x22,0x19,0x26,0xBA,0xAB,0xA2,0x5E,0xC3,0x55,
255     0xE9,0x32,0x0B,0x3B,
256 };
257 
258 static unsigned char dh2048_g[] = {
259     0x02,
260 };
261 
262 DH *get_dh2048()
263 {
264     DH *dh;
265 
266     if ((dh = DH_new()) == NULL)
267         return NULL;
268     dh->p=BN_bin2bn(dh2048_p, sizeof(dh2048_p), NULL);
269     dh->g=BN_bin2bn(dh2048_g, sizeof(dh2048_g), NULL);
270     if (dh->p == NULL || dh->g == NULL) {
271         DH_free(dh);
272         return NULL;
273     }
274     return dh;
275 }
276 #endif
277 
278 /* static int load_CA(SSL_CTX *ctx, char *file);*/
279 
280 #undef BUFSIZZ
281 #define BUFSIZZ 16*1024
282 static int bufsize = BUFSIZZ;
283 static int accept_socket = -1;
284 
285 #define TEST_CERT       "server.pem"
286 #ifndef OPENSSL_NO_TLSEXT
287 # define TEST_CERT2      "server2.pem"
288 #endif
289 #undef PROG
290 #define PROG            s_server_main
291 
292 extern int verify_depth, verify_return_error, verify_quiet;
293 
294 static int s_server_verify = SSL_VERIFY_NONE;
295 static int s_server_session_id_context = 1; /* anything will do */
296 static const char *s_cert_file = TEST_CERT, *s_key_file =
297     NULL, *s_chain_file = NULL;
298 #ifndef OPENSSL_NO_TLSEXT
299 static const char *s_cert_file2 = TEST_CERT2, *s_key_file2 = NULL;
300 #endif
301 static char *s_dcert_file = NULL, *s_dkey_file = NULL, *s_dchain_file = NULL;
302 #ifdef FIONBIO
303 static int s_nbio = 0;
304 #endif
305 static int s_nbio_test = 0;
306 int s_crlf = 0;
307 static SSL_CTX *ctx = NULL;
308 #ifndef OPENSSL_NO_TLSEXT
309 static SSL_CTX *ctx2 = NULL;
310 #endif
311 static int www = 0;
312 
313 static BIO *bio_s_out = NULL;
314 static BIO *bio_s_msg = NULL;
315 static int s_debug = 0;
316 #ifndef OPENSSL_NO_TLSEXT
317 static int s_tlsextdebug = 0;
318 static int s_tlsextstatus = 0;
319 static int cert_status_cb(SSL *s, void *arg);
320 #endif
321 static int no_resume_ephemeral = 0;
322 static int s_msg = 0;
323 static int s_quiet = 0;
324 static int s_ign_eof = 0;
325 static int s_brief = 0;
326 
327 static char *keymatexportlabel = NULL;
328 static int keymatexportlen = 20;
329 
330 static int hack = 0;
331 #ifndef OPENSSL_NO_ENGINE
332 static char *engine_id = NULL;
333 #endif
334 static const char *session_id_prefix = NULL;
335 
336 static int enable_timeouts = 0;
337 static long socket_mtu;
338 #ifndef OPENSSL_NO_DTLS1
339 static int cert_chain = 0;
340 #endif
341 
342 #ifndef OPENSSL_NO_TLSEXT
343 static BIO *serverinfo_in = NULL;
344 static const char *s_serverinfo_file = NULL;
345 
346 #endif
347 
348 #ifndef OPENSSL_NO_PSK
349 static char *psk_identity = "Client_identity";
350 char *psk_key = NULL;           /* by default PSK is not used */
351 
352 static unsigned int psk_server_cb(SSL *ssl, const char *identity,
353                                   unsigned char *psk,
354                                   unsigned int max_psk_len)
355 {
356     unsigned int psk_len = 0;
357     int ret;
358     BIGNUM *bn = NULL;
359 
360     if (s_debug)
361         BIO_printf(bio_s_out, "psk_server_cb\n");
362     if (!identity) {
363         BIO_printf(bio_err, "Error: client did not send PSK identity\n");
364         goto out_err;
365     }
366     if (s_debug)
367         BIO_printf(bio_s_out, "identity_len=%d identity=%s\n",
368                    (int)strlen(identity), identity);
369 
370     /* here we could lookup the given identity e.g. from a database */
371     if (strcmp(identity, psk_identity) != 0) {
372         BIO_printf(bio_s_out, "PSK error: client identity not found"
373                    " (got '%s' expected '%s')\n", identity, psk_identity);
374         goto out_err;
375     }
376     if (s_debug)
377         BIO_printf(bio_s_out, "PSK client identity found\n");
378 
379     /* convert the PSK key to binary */
380     ret = BN_hex2bn(&bn, psk_key);
381     if (!ret) {
382         BIO_printf(bio_err, "Could not convert PSK key '%s' to BIGNUM\n",
383                    psk_key);
384         if (bn)
385             BN_free(bn);
386         return 0;
387     }
388     if (BN_num_bytes(bn) > (int)max_psk_len) {
389         BIO_printf(bio_err,
390                    "psk buffer of callback is too small (%d) for key (%d)\n",
391                    max_psk_len, BN_num_bytes(bn));
392         BN_free(bn);
393         return 0;
394     }
395 
396     ret = BN_bn2bin(bn, psk);
397     BN_free(bn);
398 
399     if (ret < 0)
400         goto out_err;
401     psk_len = (unsigned int)ret;
402 
403     if (s_debug)
404         BIO_printf(bio_s_out, "fetched PSK len=%d\n", psk_len);
405     return psk_len;
406  out_err:
407     if (s_debug)
408         BIO_printf(bio_err, "Error in PSK server callback\n");
409     return 0;
410 }
411 #endif
412 
413 #ifndef OPENSSL_NO_SRP
414 /* This is a context that we pass to callbacks */
415 typedef struct srpsrvparm_st {
416     char *login;
417     SRP_VBASE *vb;
418     SRP_user_pwd *user;
419 } srpsrvparm;
420 
421 /*
422  * This callback pretends to require some asynchronous logic in order to
423  * obtain a verifier. When the callback is called for a new connection we
424  * return with a negative value. This will provoke the accept etc to return
425  * with an LOOKUP_X509. The main logic of the reinvokes the suspended call
426  * (which would normally occur after a worker has finished) and we set the
427  * user parameters.
428  */
429 static int MS_CALLBACK ssl_srp_server_param_cb(SSL *s, int *ad, void *arg)
430 {
431     srpsrvparm *p = (srpsrvparm *) arg;
432     if (p->login == NULL && p->user == NULL) {
433         p->login = SSL_get_srp_username(s);
434         BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login);
435         return (-1);
436     }
437 
438     if (p->user == NULL) {
439         BIO_printf(bio_err, "User %s doesn't exist\n", p->login);
440         return SSL3_AL_FATAL;
441     }
442     if (SSL_set_srp_server_param
443         (s, p->user->N, p->user->g, p->user->s, p->user->v,
444          p->user->info) < 0) {
445         *ad = SSL_AD_INTERNAL_ERROR;
446         return SSL3_AL_FATAL;
447     }
448     BIO_printf(bio_err,
449                "SRP parameters set: username = \"%s\" info=\"%s\" \n",
450                p->login, p->user->info);
451     /* need to check whether there are memory leaks */
452     p->user = NULL;
453     p->login = NULL;
454     return SSL_ERROR_NONE;
455 }
456 
457 #endif
458 
459 #ifdef MONOLITH
460 static void s_server_init(void)
461 {
462     accept_socket = -1;
463     s_server_verify = SSL_VERIFY_NONE;
464     s_dcert_file = NULL;
465     s_dkey_file = NULL;
466     s_dchain_file = NULL;
467     s_cert_file = TEST_CERT;
468     s_key_file = NULL;
469     s_chain_file = NULL;
470 # ifndef OPENSSL_NO_TLSEXT
471     s_cert_file2 = TEST_CERT2;
472     s_key_file2 = NULL;
473     ctx2 = NULL;
474 # endif
475 # ifdef FIONBIO
476     s_nbio = 0;
477 # endif
478     s_nbio_test = 0;
479     ctx = NULL;
480     www = 0;
481 
482     bio_s_out = NULL;
483     s_debug = 0;
484     s_msg = 0;
485     s_quiet = 0;
486     s_brief = 0;
487     hack = 0;
488 # ifndef OPENSSL_NO_ENGINE
489     engine_id = NULL;
490 # endif
491 }
492 #endif
493 
494 static void sv_usage(void)
495 {
496     BIO_printf(bio_err, "usage: s_server [args ...]\n");
497     BIO_printf(bio_err, "\n");
498     BIO_printf(bio_err,
499                " -accept arg   - port to accept on (default is %d)\n", PORT);
500     BIO_printf(bio_err,
501                " -verify_host host - check peer certificate matches \"host\"\n");
502     BIO_printf(bio_err,
503                " -verify_email email - check peer certificate matches \"email\"\n");
504     BIO_printf(bio_err,
505                " -verify_ip ipaddr - check peer certificate matches \"ipaddr\"\n");
506     BIO_printf(bio_err, " -context arg  - set session ID context\n");
507     BIO_printf(bio_err,
508                " -verify arg   - turn on peer certificate verification\n");
509     BIO_printf(bio_err,
510                " -Verify arg   - turn on peer certificate verification, must have a cert.\n");
511     BIO_printf(bio_err,
512                " -verify_return_error - return verification errors\n");
513     BIO_printf(bio_err, " -cert arg     - certificate file to use\n");
514     BIO_printf(bio_err, "                 (default is %s)\n", TEST_CERT);
515 #ifndef OPENSSL_NO_TLSEXT
516     BIO_printf(bio_err,
517                " -serverinfo arg - PEM serverinfo file for certificate\n");
518     BIO_printf(bio_err,
519                " -auth               - send and receive RFC 5878 TLS auth extensions and supplemental data\n");
520     BIO_printf(bio_err,
521                " -auth_require_reneg - Do not send TLS auth extensions until renegotiation\n");
522 #endif
523     BIO_printf(bio_err,
524                " -no_resumption_on_reneg - set SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION flag\n");
525     BIO_printf(bio_err,
526                " -crl_check    - check the peer certificate has not been revoked by its CA.\n"
527                "                 The CRL(s) are appended to the certificate file\n");
528     BIO_printf(bio_err,
529                " -crl_check_all - check the peer certificate has not been revoked by its CA\n"
530                "                 or any other CRL in the CA chain. CRL(s) are appened to the\n"
531                "                 the certificate file.\n");
532     BIO_printf(bio_err,
533                " -certform arg - certificate format (PEM or DER) PEM default\n");
534     BIO_printf(bio_err,
535                " -key arg      - Private Key file to use, in cert file if\n");
536     BIO_printf(bio_err, "                 not specified (default is %s)\n",
537                TEST_CERT);
538     BIO_printf(bio_err,
539                " -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
540     BIO_printf(bio_err,
541                " -pass arg     - private key file pass phrase source\n");
542     BIO_printf(bio_err,
543                " -dcert arg    - second certificate file to use (usually for DSA)\n");
544     BIO_printf(bio_err,
545                " -dcertform x  - second certificate format (PEM or DER) PEM default\n");
546     BIO_printf(bio_err,
547                " -dkey arg     - second private key file to use (usually for DSA)\n");
548     BIO_printf(bio_err,
549                " -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
550     BIO_printf(bio_err,
551                " -dpass arg    - second private key file pass phrase source\n");
552     BIO_printf(bio_err,
553                " -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
554     BIO_printf(bio_err,
555                "                 or a default set of parameters is used\n");
556 #ifndef OPENSSL_NO_ECDH
557     BIO_printf(bio_err,
558                " -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n"
559                "                 Use \"openssl ecparam -list_curves\" for all names\n"
560                "                 (default is nistp256).\n");
561 #endif
562 #ifdef FIONBIO
563     BIO_printf(bio_err, " -nbio         - Run with non-blocking IO\n");
564 #endif
565     BIO_printf(bio_err,
566                " -nbio_test    - test with the non-blocking test bio\n");
567     BIO_printf(bio_err,
568                " -crlf         - convert LF from terminal into CRLF\n");
569     BIO_printf(bio_err, " -debug        - Print more output\n");
570     BIO_printf(bio_err, " -msg          - Show protocol messages\n");
571     BIO_printf(bio_err, " -state        - Print the SSL states\n");
572     BIO_printf(bio_err, " -CApath arg   - PEM format directory of CA's\n");
573     BIO_printf(bio_err, " -CAfile arg   - PEM format file of CA's\n");
574     BIO_printf(bio_err,
575                " -no_alt_chains - only ever use the first certificate chain found\n");
576     BIO_printf(bio_err,
577                " -nocert       - Don't use any certificates (Anon-DH)\n");
578     BIO_printf(bio_err,
579                " -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
580     BIO_printf(bio_err, " -serverpref   - Use server's cipher preferences\n");
581     BIO_printf(bio_err, " -quiet        - No server output\n");
582     BIO_printf(bio_err, " -no_tmp_rsa   - Do not generate a tmp RSA key\n");
583 #ifndef OPENSSL_NO_PSK
584     BIO_printf(bio_err, " -psk_hint arg - PSK identity hint to use\n");
585     BIO_printf(bio_err, " -psk arg      - PSK in hex (without 0x)\n");
586 # ifndef OPENSSL_NO_JPAKE
587     BIO_printf(bio_err, " -jpake arg    - JPAKE secret to use\n");
588 # endif
589 #endif
590 #ifndef OPENSSL_NO_SRP
591     BIO_printf(bio_err, " -srpvfile file      - The verifier file for SRP\n");
592     BIO_printf(bio_err,
593                " -srpuserseed string - A seed string for a default user salt.\n");
594 #endif
595     BIO_printf(bio_err, " -ssl2         - Just talk SSLv2\n");
596 #ifndef OPENSSL_NO_SSL3_METHOD
597     BIO_printf(bio_err, " -ssl3         - Just talk SSLv3\n");
598 #endif
599     BIO_printf(bio_err, " -tls1_2       - Just talk TLSv1.2\n");
600     BIO_printf(bio_err, " -tls1_1       - Just talk TLSv1.1\n");
601     BIO_printf(bio_err, " -tls1         - Just talk TLSv1\n");
602     BIO_printf(bio_err, " -dtls1        - Just talk DTLSv1\n");
603     BIO_printf(bio_err, " -dtls1_2      - Just talk DTLSv1.2\n");
604     BIO_printf(bio_err, " -timeout      - Enable timeouts\n");
605     BIO_printf(bio_err, " -mtu          - Set link layer MTU\n");
606     BIO_printf(bio_err, " -chain        - Read a certificate chain\n");
607     BIO_printf(bio_err, " -no_ssl2      - Just disable SSLv2\n");
608     BIO_printf(bio_err, " -no_ssl3      - Just disable SSLv3\n");
609     BIO_printf(bio_err, " -no_tls1      - Just disable TLSv1\n");
610     BIO_printf(bio_err, " -no_tls1_1    - Just disable TLSv1.1\n");
611     BIO_printf(bio_err, " -no_tls1_2    - Just disable TLSv1.2\n");
612 #ifndef OPENSSL_NO_DH
613     BIO_printf(bio_err, " -no_dhe       - Disable ephemeral DH\n");
614 #endif
615 #ifndef OPENSSL_NO_ECDH
616     BIO_printf(bio_err, " -no_ecdhe     - Disable ephemeral ECDH\n");
617 #endif
618     BIO_printf(bio_err, " -bugs         - Turn on SSL bug compatibility\n");
619     BIO_printf(bio_err,
620                " -hack         - workaround for early Netscape code\n");
621     BIO_printf(bio_err,
622                " -www          - Respond to a 'GET /' with a status page\n");
623     BIO_printf(bio_err,
624                " -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
625     BIO_printf(bio_err,
626                " -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
627     BIO_printf(bio_err,
628                "                 with the assumption it contains a complete HTTP response.\n");
629 #ifndef OPENSSL_NO_ENGINE
630     BIO_printf(bio_err,
631                " -engine id    - Initialise and use the specified engine\n");
632 #endif
633     BIO_printf(bio_err,
634                " -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
635     BIO_printf(bio_err, " -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR,
636                LIST_SEPARATOR_CHAR);
637 #ifndef OPENSSL_NO_TLSEXT
638     BIO_printf(bio_err,
639                " -servername host - servername for HostName TLS extension\n");
640     BIO_printf(bio_err,
641                " -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
642     BIO_printf(bio_err,
643                " -cert2 arg    - certificate file to use for servername\n");
644     BIO_printf(bio_err, "                 (default is %s)\n", TEST_CERT2);
645     BIO_printf(bio_err,
646                " -key2 arg     - Private Key file to use for servername, in cert file if\n");
647     BIO_printf(bio_err, "                 not specified (default is %s)\n",
648                TEST_CERT2);
649     BIO_printf(bio_err,
650                " -tlsextdebug  - hex dump of all TLS extensions received\n");
651     BIO_printf(bio_err,
652                " -no_ticket    - disable use of RFC4507bis session tickets\n");
653     BIO_printf(bio_err,
654                " -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
655     BIO_printf(bio_err,
656                " -sigalgs arg      - Signature algorithms to support (colon-separated list)\n");
657     BIO_printf(bio_err,
658                " -client_sigalgs arg  - Signature algorithms to support for client \n");
659     BIO_printf(bio_err,
660                "                        certificate authentication (colon-separated list)\n");
661 # ifndef OPENSSL_NO_NEXTPROTONEG
662     BIO_printf(bio_err,
663                " -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
664 # endif
665 # ifndef OPENSSL_NO_SRTP
666     BIO_printf(bio_err,
667                " -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
668 # endif
669     BIO_printf(bio_err,
670                " -alpn arg  - set the advertised protocols for the ALPN extension (comma-separated list)\n");
671 #endif
672     BIO_printf(bio_err,
673                " -keymatexport label   - Export keying material using label\n");
674     BIO_printf(bio_err,
675                " -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
676     BIO_printf(bio_err,
677                " -status           - respond to certificate status requests\n");
678     BIO_printf(bio_err,
679                " -status_verbose   - enable status request verbose printout\n");
680     BIO_printf(bio_err,
681                " -status_timeout n - status request responder timeout\n");
682     BIO_printf(bio_err, " -status_url URL   - status request fallback URL\n");
683 }
684 
685 static int local_argc = 0;
686 static char **local_argv;
687 
688 #ifdef CHARSET_EBCDIC
689 static int ebcdic_new(BIO *bi);
690 static int ebcdic_free(BIO *a);
691 static int ebcdic_read(BIO *b, char *out, int outl);
692 static int ebcdic_write(BIO *b, const char *in, int inl);
693 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
694 static int ebcdic_gets(BIO *bp, char *buf, int size);
695 static int ebcdic_puts(BIO *bp, const char *str);
696 
697 # define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
698 static BIO_METHOD methods_ebcdic = {
699     BIO_TYPE_EBCDIC_FILTER,
700     "EBCDIC/ASCII filter",
701     ebcdic_write,
702     ebcdic_read,
703     ebcdic_puts,
704     ebcdic_gets,
705     ebcdic_ctrl,
706     ebcdic_new,
707     ebcdic_free,
708 };
709 
710 typedef struct {
711     size_t alloced;
712     char buff[1];
713 } EBCDIC_OUTBUFF;
714 
715 BIO_METHOD *BIO_f_ebcdic_filter()
716 {
717     return (&methods_ebcdic);
718 }
719 
720 static int ebcdic_new(BIO *bi)
721 {
722     EBCDIC_OUTBUFF *wbuf;
723 
724     wbuf = (EBCDIC_OUTBUFF *) OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
725     if (!wbuf)
726         return 0;
727     wbuf->alloced = 1024;
728     wbuf->buff[0] = '\0';
729 
730     bi->ptr = (char *)wbuf;
731     bi->init = 1;
732     bi->flags = 0;
733     return (1);
734 }
735 
736 static int ebcdic_free(BIO *a)
737 {
738     if (a == NULL)
739         return (0);
740     if (a->ptr != NULL)
741         OPENSSL_free(a->ptr);
742     a->ptr = NULL;
743     a->init = 0;
744     a->flags = 0;
745     return (1);
746 }
747 
748 static int ebcdic_read(BIO *b, char *out, int outl)
749 {
750     int ret = 0;
751 
752     if (out == NULL || outl == 0)
753         return (0);
754     if (b->next_bio == NULL)
755         return (0);
756 
757     ret = BIO_read(b->next_bio, out, outl);
758     if (ret > 0)
759         ascii2ebcdic(out, out, ret);
760     return (ret);
761 }
762 
763 static int ebcdic_write(BIO *b, const char *in, int inl)
764 {
765     EBCDIC_OUTBUFF *wbuf;
766     int ret = 0;
767     int num;
768     unsigned char n;
769 
770     if ((in == NULL) || (inl <= 0))
771         return (0);
772     if (b->next_bio == NULL)
773         return (0);
774 
775     wbuf = (EBCDIC_OUTBUFF *) b->ptr;
776 
777     if (inl > (num = wbuf->alloced)) {
778         num = num + num;        /* double the size */
779         if (num < inl)
780             num = inl;
781         wbuf =
782             (EBCDIC_OUTBUFF *) OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
783         if (!wbuf)
784             return 0;
785         OPENSSL_free(b->ptr);
786 
787         wbuf->alloced = num;
788         wbuf->buff[0] = '\0';
789 
790         b->ptr = (char *)wbuf;
791     }
792 
793     ebcdic2ascii(wbuf->buff, in, inl);
794 
795     ret = BIO_write(b->next_bio, wbuf->buff, inl);
796 
797     return (ret);
798 }
799 
800 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
801 {
802     long ret;
803 
804     if (b->next_bio == NULL)
805         return (0);
806     switch (cmd) {
807     case BIO_CTRL_DUP:
808         ret = 0L;
809         break;
810     default:
811         ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
812         break;
813     }
814     return (ret);
815 }
816 
817 static int ebcdic_gets(BIO *bp, char *buf, int size)
818 {
819     int i, ret = 0;
820     if (bp->next_bio == NULL)
821         return (0);
822 /*      return(BIO_gets(bp->next_bio,buf,size));*/
823     for (i = 0; i < size - 1; ++i) {
824         ret = ebcdic_read(bp, &buf[i], 1);
825         if (ret <= 0)
826             break;
827         else if (buf[i] == '\n') {
828             ++i;
829             break;
830         }
831     }
832     if (i < size)
833         buf[i] = '\0';
834     return (ret < 0 && i == 0) ? ret : i;
835 }
836 
837 static int ebcdic_puts(BIO *bp, const char *str)
838 {
839     if (bp->next_bio == NULL)
840         return (0);
841     return ebcdic_write(bp, str, strlen(str));
842 }
843 #endif
844 
845 #ifndef OPENSSL_NO_TLSEXT
846 
847 /* This is a context that we pass to callbacks */
848 typedef struct tlsextctx_st {
849     char *servername;
850     BIO *biodebug;
851     int extension_error;
852 } tlsextctx;
853 
854 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
855 {
856     tlsextctx *p = (tlsextctx *) arg;
857     const char *servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
858     if (servername && p->biodebug)
859         BIO_printf(p->biodebug, "Hostname in TLS extension: \"%s\"\n",
860                    servername);
861 
862     if (!p->servername)
863         return SSL_TLSEXT_ERR_NOACK;
864 
865     if (servername) {
866         if (strcasecmp(servername, p->servername))
867             return p->extension_error;
868         if (ctx2) {
869             BIO_printf(p->biodebug, "Switching server context.\n");
870             SSL_set_SSL_CTX(s, ctx2);
871         }
872     }
873     return SSL_TLSEXT_ERR_OK;
874 }
875 
876 /* Structure passed to cert status callback */
877 
878 typedef struct tlsextstatusctx_st {
879     /* Default responder to use */
880     char *host, *path, *port;
881     int use_ssl;
882     int timeout;
883     BIO *err;
884     int verbose;
885 } tlsextstatusctx;
886 
887 static tlsextstatusctx tlscstatp = { NULL, NULL, NULL, 0, -1, NULL, 0 };
888 
889 /*
890  * Certificate Status callback. This is called when a client includes a
891  * certificate status request extension. This is a simplified version. It
892  * examines certificates each time and makes one OCSP responder query for
893  * each request. A full version would store details such as the OCSP
894  * certificate IDs and minimise the number of OCSP responses by caching them
895  * until they were considered "expired".
896  */
897 
898 static int cert_status_cb(SSL *s, void *arg)
899 {
900     tlsextstatusctx *srctx = arg;
901     BIO *err = srctx->err;
902     char *host, *port, *path;
903     int use_ssl;
904     unsigned char *rspder = NULL;
905     int rspderlen;
906     STACK_OF(OPENSSL_STRING) *aia = NULL;
907     X509 *x = NULL;
908     X509_STORE_CTX inctx;
909     X509_OBJECT obj;
910     OCSP_REQUEST *req = NULL;
911     OCSP_RESPONSE *resp = NULL;
912     OCSP_CERTID *id = NULL;
913     STACK_OF(X509_EXTENSION) *exts;
914     int ret = SSL_TLSEXT_ERR_NOACK;
915     int i;
916 # if 0
917     STACK_OF(OCSP_RESPID) *ids;
918     SSL_get_tlsext_status_ids(s, &ids);
919     BIO_printf(err, "cert_status: received %d ids\n",
920                sk_OCSP_RESPID_num(ids));
921 # endif
922     if (srctx->verbose)
923         BIO_puts(err, "cert_status: callback called\n");
924     /* Build up OCSP query from server certificate */
925     x = SSL_get_certificate(s);
926     aia = X509_get1_ocsp(x);
927     if (aia) {
928         if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
929                             &host, &port, &path, &use_ssl)) {
930             BIO_puts(err, "cert_status: can't parse AIA URL\n");
931             goto err;
932         }
933         if (srctx->verbose)
934             BIO_printf(err, "cert_status: AIA URL: %s\n",
935                        sk_OPENSSL_STRING_value(aia, 0));
936     } else {
937         if (!srctx->host) {
938             BIO_puts(srctx->err,
939                      "cert_status: no AIA and no default responder URL\n");
940             goto done;
941         }
942         host = srctx->host;
943         path = srctx->path;
944         port = srctx->port;
945         use_ssl = srctx->use_ssl;
946     }
947 
948     if (!X509_STORE_CTX_init(&inctx,
949                              SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
950                              NULL, NULL))
951         goto err;
952     if (X509_STORE_get_by_subject(&inctx, X509_LU_X509,
953                                   X509_get_issuer_name(x), &obj) <= 0) {
954         BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
955         X509_STORE_CTX_cleanup(&inctx);
956         goto done;
957     }
958     req = OCSP_REQUEST_new();
959     if (!req)
960         goto err;
961     id = OCSP_cert_to_id(NULL, x, obj.data.x509);
962     X509_free(obj.data.x509);
963     X509_STORE_CTX_cleanup(&inctx);
964     if (!id)
965         goto err;
966     if (!OCSP_request_add0_id(req, id))
967         goto err;
968     id = NULL;
969     /* Add any extensions to the request */
970     SSL_get_tlsext_status_exts(s, &exts);
971     for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
972         X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
973         if (!OCSP_REQUEST_add_ext(req, ext, -1))
974             goto err;
975     }
976     resp = process_responder(err, req, host, path, port, use_ssl, NULL,
977                              srctx->timeout);
978     if (!resp) {
979         BIO_puts(err, "cert_status: error querying responder\n");
980         goto done;
981     }
982     rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
983     if (rspderlen <= 0)
984         goto err;
985     SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
986     if (srctx->verbose) {
987         BIO_puts(err, "cert_status: ocsp response sent:\n");
988         OCSP_RESPONSE_print(err, resp, 2);
989     }
990     ret = SSL_TLSEXT_ERR_OK;
991  done:
992     if (ret != SSL_TLSEXT_ERR_OK)
993         ERR_print_errors(err);
994     if (aia) {
995         OPENSSL_free(host);
996         OPENSSL_free(path);
997         OPENSSL_free(port);
998         X509_email_free(aia);
999     }
1000     if (id)
1001         OCSP_CERTID_free(id);
1002     if (req)
1003         OCSP_REQUEST_free(req);
1004     if (resp)
1005         OCSP_RESPONSE_free(resp);
1006     return ret;
1007  err:
1008     ret = SSL_TLSEXT_ERR_ALERT_FATAL;
1009     goto done;
1010 }
1011 
1012 # ifndef OPENSSL_NO_NEXTPROTONEG
1013 /* This is the context that we pass to next_proto_cb */
1014 typedef struct tlsextnextprotoctx_st {
1015     unsigned char *data;
1016     unsigned int len;
1017 } tlsextnextprotoctx;
1018 
1019 static int next_proto_cb(SSL *s, const unsigned char **data,
1020                          unsigned int *len, void *arg)
1021 {
1022     tlsextnextprotoctx *next_proto = arg;
1023 
1024     *data = next_proto->data;
1025     *len = next_proto->len;
1026 
1027     return SSL_TLSEXT_ERR_OK;
1028 }
1029 # endif                         /* ndef OPENSSL_NO_NEXTPROTONEG */
1030 
1031 /* This the context that we pass to alpn_cb */
1032 typedef struct tlsextalpnctx_st {
1033     unsigned char *data;
1034     unsigned short len;
1035 } tlsextalpnctx;
1036 
1037 static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen,
1038                    const unsigned char *in, unsigned int inlen, void *arg)
1039 {
1040     tlsextalpnctx *alpn_ctx = arg;
1041 
1042     if (!s_quiet) {
1043         /* We can assume that |in| is syntactically valid. */
1044         unsigned i;
1045         BIO_printf(bio_s_out, "ALPN protocols advertised by the client: ");
1046         for (i = 0; i < inlen;) {
1047             if (i)
1048                 BIO_write(bio_s_out, ", ", 2);
1049             BIO_write(bio_s_out, &in[i + 1], in[i]);
1050             i += in[i] + 1;
1051         }
1052         BIO_write(bio_s_out, "\n", 1);
1053     }
1054 
1055     if (SSL_select_next_proto
1056         ((unsigned char **)out, outlen, alpn_ctx->data, alpn_ctx->len, in,
1057          inlen) != OPENSSL_NPN_NEGOTIATED) {
1058         return SSL_TLSEXT_ERR_NOACK;
1059     }
1060 
1061     if (!s_quiet) {
1062         BIO_printf(bio_s_out, "ALPN protocols selected: ");
1063         BIO_write(bio_s_out, *out, *outlen);
1064         BIO_write(bio_s_out, "\n", 1);
1065     }
1066 
1067     return SSL_TLSEXT_ERR_OK;
1068 }
1069 #endif                          /* ndef OPENSSL_NO_TLSEXT */
1070 
1071 int MAIN(int, char **);
1072 
1073 #ifndef OPENSSL_NO_JPAKE
1074 static char *jpake_secret = NULL;
1075 # define no_jpake !jpake_secret
1076 #else
1077 # define no_jpake 1
1078 #endif
1079 #ifndef OPENSSL_NO_SRP
1080 static srpsrvparm srp_callback_parm;
1081 #endif
1082 #ifndef OPENSSL_NO_SRTP
1083 static char *srtp_profiles = NULL;
1084 #endif
1085 
1086 int MAIN(int argc, char *argv[])
1087 {
1088     X509_VERIFY_PARAM *vpm = NULL;
1089     int badarg = 0;
1090     short port = PORT;
1091     char *CApath = NULL, *CAfile = NULL;
1092     char *chCApath = NULL, *chCAfile = NULL;
1093     char *vfyCApath = NULL, *vfyCAfile = NULL;
1094     unsigned char *context = NULL;
1095     char *dhfile = NULL;
1096     int badop = 0;
1097     int ret = 1;
1098     int build_chain = 0;
1099     int no_tmp_rsa = 0, no_dhe = 0, no_ecdhe = 0, nocert = 0;
1100     int state = 0;
1101     const SSL_METHOD *meth = NULL;
1102     int socket_type = SOCK_STREAM;
1103     ENGINE *e = NULL;
1104     char *inrand = NULL;
1105     int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
1106     char *passarg = NULL, *pass = NULL;
1107     char *dpassarg = NULL, *dpass = NULL;
1108     int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
1109     X509 *s_cert = NULL, *s_dcert = NULL;
1110     STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL;
1111     EVP_PKEY *s_key = NULL, *s_dkey = NULL;
1112     int no_cache = 0, ext_cache = 0;
1113     int rev = 0, naccept = -1;
1114 #ifndef OPENSSL_NO_TLSEXT
1115     EVP_PKEY *s_key2 = NULL;
1116     X509 *s_cert2 = NULL;
1117     tlsextctx tlsextcbp = { NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING };
1118 # ifndef OPENSSL_NO_NEXTPROTONEG
1119     const char *next_proto_neg_in = NULL;
1120     tlsextnextprotoctx next_proto = { NULL, 0 };
1121 # endif
1122     const char *alpn_in = NULL;
1123     tlsextalpnctx alpn_ctx = { NULL, 0 };
1124 #endif
1125 #ifndef OPENSSL_NO_PSK
1126     /* by default do not send a PSK identity hint */
1127     static char *psk_identity_hint = NULL;
1128 #endif
1129 #ifndef OPENSSL_NO_SRP
1130     char *srpuserseed = NULL;
1131     char *srp_verifier_file = NULL;
1132 #endif
1133     SSL_EXCERT *exc = NULL;
1134     SSL_CONF_CTX *cctx = NULL;
1135     STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
1136 
1137     char *crl_file = NULL;
1138     int crl_format = FORMAT_PEM;
1139     int crl_download = 0;
1140     STACK_OF(X509_CRL) *crls = NULL;
1141 
1142     meth = SSLv23_server_method();
1143 
1144     local_argc = argc;
1145     local_argv = argv;
1146 
1147     apps_startup();
1148 #ifdef MONOLITH
1149     s_server_init();
1150 #endif
1151 
1152     if (bio_err == NULL)
1153         bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
1154 
1155     if (!load_config(bio_err, NULL))
1156         goto end;
1157 
1158     cctx = SSL_CONF_CTX_new();
1159     if (!cctx)
1160         goto end;
1161     SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_SERVER);
1162     SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CMDLINE);
1163 
1164     verify_depth = 0;
1165 #ifdef FIONBIO
1166     s_nbio = 0;
1167 #endif
1168     s_nbio_test = 0;
1169 
1170     argc--;
1171     argv++;
1172 
1173     while (argc >= 1) {
1174         if ((strcmp(*argv, "-port") == 0) || (strcmp(*argv, "-accept") == 0)) {
1175             if (--argc < 1)
1176                 goto bad;
1177             if (!extract_port(*(++argv), &port))
1178                 goto bad;
1179         } else if (strcmp(*argv, "-naccept") == 0) {
1180             if (--argc < 1)
1181                 goto bad;
1182             naccept = atol(*(++argv));
1183             if (naccept <= 0) {
1184                 BIO_printf(bio_err, "bad accept value %s\n", *argv);
1185                 goto bad;
1186             }
1187         } else if (strcmp(*argv, "-verify") == 0) {
1188             s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE;
1189             if (--argc < 1)
1190                 goto bad;
1191             verify_depth = atoi(*(++argv));
1192             if (!s_quiet)
1193                 BIO_printf(bio_err, "verify depth is %d\n", verify_depth);
1194         } else if (strcmp(*argv, "-Verify") == 0) {
1195             s_server_verify =
1196                 SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT |
1197                 SSL_VERIFY_CLIENT_ONCE;
1198             if (--argc < 1)
1199                 goto bad;
1200             verify_depth = atoi(*(++argv));
1201             if (!s_quiet)
1202                 BIO_printf(bio_err,
1203                            "verify depth is %d, must return a certificate\n",
1204                            verify_depth);
1205         } else if (strcmp(*argv, "-context") == 0) {
1206             if (--argc < 1)
1207                 goto bad;
1208             context = (unsigned char *)*(++argv);
1209         } else if (strcmp(*argv, "-cert") == 0) {
1210             if (--argc < 1)
1211                 goto bad;
1212             s_cert_file = *(++argv);
1213         } else if (strcmp(*argv, "-CRL") == 0) {
1214             if (--argc < 1)
1215                 goto bad;
1216             crl_file = *(++argv);
1217         } else if (strcmp(*argv, "-crl_download") == 0)
1218             crl_download = 1;
1219 #ifndef OPENSSL_NO_TLSEXT
1220         else if (strcmp(*argv, "-serverinfo") == 0) {
1221             if (--argc < 1)
1222                 goto bad;
1223             s_serverinfo_file = *(++argv);
1224         }
1225 #endif
1226         else if (strcmp(*argv, "-certform") == 0) {
1227             if (--argc < 1)
1228                 goto bad;
1229             s_cert_format = str2fmt(*(++argv));
1230         } else if (strcmp(*argv, "-key") == 0) {
1231             if (--argc < 1)
1232                 goto bad;
1233             s_key_file = *(++argv);
1234         } else if (strcmp(*argv, "-keyform") == 0) {
1235             if (--argc < 1)
1236                 goto bad;
1237             s_key_format = str2fmt(*(++argv));
1238         } else if (strcmp(*argv, "-pass") == 0) {
1239             if (--argc < 1)
1240                 goto bad;
1241             passarg = *(++argv);
1242         } else if (strcmp(*argv, "-cert_chain") == 0) {
1243             if (--argc < 1)
1244                 goto bad;
1245             s_chain_file = *(++argv);
1246         } else if (strcmp(*argv, "-dhparam") == 0) {
1247             if (--argc < 1)
1248                 goto bad;
1249             dhfile = *(++argv);
1250         } else if (strcmp(*argv, "-dcertform") == 0) {
1251             if (--argc < 1)
1252                 goto bad;
1253             s_dcert_format = str2fmt(*(++argv));
1254         } else if (strcmp(*argv, "-dcert") == 0) {
1255             if (--argc < 1)
1256                 goto bad;
1257             s_dcert_file = *(++argv);
1258         } else if (strcmp(*argv, "-dkeyform") == 0) {
1259             if (--argc < 1)
1260                 goto bad;
1261             s_dkey_format = str2fmt(*(++argv));
1262         } else if (strcmp(*argv, "-dpass") == 0) {
1263             if (--argc < 1)
1264                 goto bad;
1265             dpassarg = *(++argv);
1266         } else if (strcmp(*argv, "-dkey") == 0) {
1267             if (--argc < 1)
1268                 goto bad;
1269             s_dkey_file = *(++argv);
1270         } else if (strcmp(*argv, "-dcert_chain") == 0) {
1271             if (--argc < 1)
1272                 goto bad;
1273             s_dchain_file = *(++argv);
1274         } else if (strcmp(*argv, "-nocert") == 0) {
1275             nocert = 1;
1276         } else if (strcmp(*argv, "-CApath") == 0) {
1277             if (--argc < 1)
1278                 goto bad;
1279             CApath = *(++argv);
1280         } else if (strcmp(*argv, "-chainCApath") == 0) {
1281             if (--argc < 1)
1282                 goto bad;
1283             chCApath = *(++argv);
1284         } else if (strcmp(*argv, "-verifyCApath") == 0) {
1285             if (--argc < 1)
1286                 goto bad;
1287             vfyCApath = *(++argv);
1288         } else if (strcmp(*argv, "-no_cache") == 0)
1289             no_cache = 1;
1290         else if (strcmp(*argv, "-ext_cache") == 0)
1291             ext_cache = 1;
1292         else if (strcmp(*argv, "-CRLform") == 0) {
1293             if (--argc < 1)
1294                 goto bad;
1295             crl_format = str2fmt(*(++argv));
1296         } else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) {
1297             if (badarg)
1298                 goto bad;
1299             continue;
1300         } else if (args_excert(&argv, &argc, &badarg, bio_err, &exc)) {
1301             if (badarg)
1302                 goto bad;
1303             continue;
1304         } else if (args_ssl(&argv, &argc, cctx, &badarg, bio_err, &ssl_args)) {
1305             if (badarg)
1306                 goto bad;
1307             continue;
1308         } else if (strcmp(*argv, "-verify_return_error") == 0)
1309             verify_return_error = 1;
1310         else if (strcmp(*argv, "-verify_quiet") == 0)
1311             verify_quiet = 1;
1312         else if (strcmp(*argv, "-build_chain") == 0)
1313             build_chain = 1;
1314         else if (strcmp(*argv, "-CAfile") == 0) {
1315             if (--argc < 1)
1316                 goto bad;
1317             CAfile = *(++argv);
1318         } else if (strcmp(*argv, "-chainCAfile") == 0) {
1319             if (--argc < 1)
1320                 goto bad;
1321             chCAfile = *(++argv);
1322         } else if (strcmp(*argv, "-verifyCAfile") == 0) {
1323             if (--argc < 1)
1324                 goto bad;
1325             vfyCAfile = *(++argv);
1326         }
1327 #ifdef FIONBIO
1328         else if (strcmp(*argv, "-nbio") == 0) {
1329             s_nbio = 1;
1330         }
1331 #endif
1332         else if (strcmp(*argv, "-nbio_test") == 0) {
1333 #ifdef FIONBIO
1334             s_nbio = 1;
1335 #endif
1336             s_nbio_test = 1;
1337         } else if (strcmp(*argv, "-ign_eof") == 0)
1338             s_ign_eof = 1;
1339         else if (strcmp(*argv, "-no_ign_eof") == 0)
1340             s_ign_eof = 0;
1341         else if (strcmp(*argv, "-debug") == 0) {
1342             s_debug = 1;
1343         }
1344 #ifndef OPENSSL_NO_TLSEXT
1345         else if (strcmp(*argv, "-tlsextdebug") == 0)
1346             s_tlsextdebug = 1;
1347         else if (strcmp(*argv, "-status") == 0)
1348             s_tlsextstatus = 1;
1349         else if (strcmp(*argv, "-status_verbose") == 0) {
1350             s_tlsextstatus = 1;
1351             tlscstatp.verbose = 1;
1352         } else if (!strcmp(*argv, "-status_timeout")) {
1353             s_tlsextstatus = 1;
1354             if (--argc < 1)
1355                 goto bad;
1356             tlscstatp.timeout = atoi(*(++argv));
1357         } else if (!strcmp(*argv, "-status_url")) {
1358             s_tlsextstatus = 1;
1359             if (--argc < 1)
1360                 goto bad;
1361             if (!OCSP_parse_url(*(++argv),
1362                                 &tlscstatp.host,
1363                                 &tlscstatp.port,
1364                                 &tlscstatp.path, &tlscstatp.use_ssl)) {
1365                 BIO_printf(bio_err, "Error parsing URL\n");
1366                 goto bad;
1367             }
1368         }
1369 #endif
1370         else if (strcmp(*argv, "-msg") == 0) {
1371             s_msg = 1;
1372         } else if (strcmp(*argv, "-msgfile") == 0) {
1373             if (--argc < 1)
1374                 goto bad;
1375             bio_s_msg = BIO_new_file(*(++argv), "w");
1376         }
1377 #ifndef OPENSSL_NO_SSL_TRACE
1378         else if (strcmp(*argv, "-trace") == 0) {
1379             s_msg = 2;
1380         }
1381 #endif
1382         else if (strcmp(*argv, "-hack") == 0) {
1383             hack = 1;
1384         } else if (strcmp(*argv, "-state") == 0) {
1385             state = 1;
1386         } else if (strcmp(*argv, "-crlf") == 0) {
1387             s_crlf = 1;
1388         } else if (strcmp(*argv, "-quiet") == 0) {
1389             s_quiet = 1;
1390         } else if (strcmp(*argv, "-brief") == 0) {
1391             s_quiet = 1;
1392             s_brief = 1;
1393             verify_quiet = 1;
1394         } else if (strcmp(*argv, "-no_tmp_rsa") == 0) {
1395             no_tmp_rsa = 1;
1396         } else if (strcmp(*argv, "-no_dhe") == 0) {
1397             no_dhe = 1;
1398         } else if (strcmp(*argv, "-no_ecdhe") == 0) {
1399             no_ecdhe = 1;
1400         } else if (strcmp(*argv, "-no_resume_ephemeral") == 0) {
1401             no_resume_ephemeral = 1;
1402         }
1403 #ifndef OPENSSL_NO_PSK
1404         else if (strcmp(*argv, "-psk_hint") == 0) {
1405             if (--argc < 1)
1406                 goto bad;
1407             psk_identity_hint = *(++argv);
1408         } else if (strcmp(*argv, "-psk") == 0) {
1409             size_t i;
1410 
1411             if (--argc < 1)
1412                 goto bad;
1413             psk_key = *(++argv);
1414             for (i = 0; i < strlen(psk_key); i++) {
1415                 if (isxdigit((unsigned char)psk_key[i]))
1416                     continue;
1417                 BIO_printf(bio_err, "Not a hex number '%s'\n", *argv);
1418                 goto bad;
1419             }
1420         }
1421 #endif
1422 #ifndef OPENSSL_NO_SRP
1423         else if (strcmp(*argv, "-srpvfile") == 0) {
1424             if (--argc < 1)
1425                 goto bad;
1426             srp_verifier_file = *(++argv);
1427             meth = TLSv1_server_method();
1428         } else if (strcmp(*argv, "-srpuserseed") == 0) {
1429             if (--argc < 1)
1430                 goto bad;
1431             srpuserseed = *(++argv);
1432             meth = TLSv1_server_method();
1433         }
1434 #endif
1435         else if (strcmp(*argv, "-rev") == 0) {
1436             rev = 1;
1437         } else if (strcmp(*argv, "-www") == 0) {
1438             www = 1;
1439         } else if (strcmp(*argv, "-WWW") == 0) {
1440             www = 2;
1441         } else if (strcmp(*argv, "-HTTP") == 0) {
1442             www = 3;
1443         }
1444 #ifndef OPENSSL_NO_SSL2
1445         else if (strcmp(*argv, "-ssl2") == 0) {
1446             no_ecdhe = 1;
1447             meth = SSLv2_server_method();
1448         }
1449 #endif
1450 #ifndef OPENSSL_NO_SSL3_METHOD
1451         else if (strcmp(*argv, "-ssl3") == 0) {
1452             meth = SSLv3_server_method();
1453         }
1454 #endif
1455 #ifndef OPENSSL_NO_TLS1
1456         else if (strcmp(*argv, "-tls1") == 0) {
1457             meth = TLSv1_server_method();
1458         } else if (strcmp(*argv, "-tls1_1") == 0) {
1459             meth = TLSv1_1_server_method();
1460         } else if (strcmp(*argv, "-tls1_2") == 0) {
1461             meth = TLSv1_2_server_method();
1462         }
1463 #endif
1464 #ifndef OPENSSL_NO_DTLS1
1465         else if (strcmp(*argv, "-dtls") == 0) {
1466             meth = DTLS_server_method();
1467             socket_type = SOCK_DGRAM;
1468         } else if (strcmp(*argv, "-dtls1") == 0) {
1469             meth = DTLSv1_server_method();
1470             socket_type = SOCK_DGRAM;
1471         } else if (strcmp(*argv, "-dtls1_2") == 0) {
1472             meth = DTLSv1_2_server_method();
1473             socket_type = SOCK_DGRAM;
1474         } else if (strcmp(*argv, "-timeout") == 0)
1475             enable_timeouts = 1;
1476         else if (strcmp(*argv, "-mtu") == 0) {
1477             if (--argc < 1)
1478                 goto bad;
1479             socket_mtu = atol(*(++argv));
1480         } else if (strcmp(*argv, "-chain") == 0)
1481             cert_chain = 1;
1482 #endif
1483         else if (strcmp(*argv, "-id_prefix") == 0) {
1484             if (--argc < 1)
1485                 goto bad;
1486             session_id_prefix = *(++argv);
1487         }
1488 #ifndef OPENSSL_NO_ENGINE
1489         else if (strcmp(*argv, "-engine") == 0) {
1490             if (--argc < 1)
1491                 goto bad;
1492             engine_id = *(++argv);
1493         }
1494 #endif
1495         else if (strcmp(*argv, "-rand") == 0) {
1496             if (--argc < 1)
1497                 goto bad;
1498             inrand = *(++argv);
1499         }
1500 #ifndef OPENSSL_NO_TLSEXT
1501         else if (strcmp(*argv, "-servername") == 0) {
1502             if (--argc < 1)
1503                 goto bad;
1504             tlsextcbp.servername = *(++argv);
1505         } else if (strcmp(*argv, "-servername_fatal") == 0) {
1506             tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL;
1507         } else if (strcmp(*argv, "-cert2") == 0) {
1508             if (--argc < 1)
1509                 goto bad;
1510             s_cert_file2 = *(++argv);
1511         } else if (strcmp(*argv, "-key2") == 0) {
1512             if (--argc < 1)
1513                 goto bad;
1514             s_key_file2 = *(++argv);
1515         }
1516 # ifndef OPENSSL_NO_NEXTPROTONEG
1517         else if (strcmp(*argv, "-nextprotoneg") == 0) {
1518             if (--argc < 1)
1519                 goto bad;
1520             next_proto_neg_in = *(++argv);
1521         }
1522 # endif
1523         else if (strcmp(*argv, "-alpn") == 0) {
1524             if (--argc < 1)
1525                 goto bad;
1526             alpn_in = *(++argv);
1527         }
1528 #endif
1529 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1530         else if (strcmp(*argv, "-jpake") == 0) {
1531             if (--argc < 1)
1532                 goto bad;
1533             jpake_secret = *(++argv);
1534         }
1535 #endif
1536 #ifndef OPENSSL_NO_SRTP
1537         else if (strcmp(*argv, "-use_srtp") == 0) {
1538             if (--argc < 1)
1539                 goto bad;
1540             srtp_profiles = *(++argv);
1541         }
1542 #endif
1543         else if (strcmp(*argv, "-keymatexport") == 0) {
1544             if (--argc < 1)
1545                 goto bad;
1546             keymatexportlabel = *(++argv);
1547         } else if (strcmp(*argv, "-keymatexportlen") == 0) {
1548             if (--argc < 1)
1549                 goto bad;
1550             keymatexportlen = atoi(*(++argv));
1551             if (keymatexportlen == 0)
1552                 goto bad;
1553         } else {
1554             BIO_printf(bio_err, "unknown option %s\n", *argv);
1555             badop = 1;
1556             break;
1557         }
1558         argc--;
1559         argv++;
1560     }
1561     if (badop) {
1562  bad:
1563         sv_usage();
1564         goto end;
1565     }
1566 #ifndef OPENSSL_NO_DTLS1
1567     if (www && socket_type == SOCK_DGRAM) {
1568         BIO_printf(bio_err, "Can't use -HTTP, -www or -WWW with DTLS\n");
1569         goto end;
1570     }
1571 #endif
1572 
1573 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1574     if (jpake_secret) {
1575         if (psk_key) {
1576             BIO_printf(bio_err, "Can't use JPAKE and PSK together\n");
1577             goto end;
1578         }
1579         psk_identity = "JPAKE";
1580     }
1581 #endif
1582 
1583     SSL_load_error_strings();
1584     OpenSSL_add_ssl_algorithms();
1585 
1586 #ifndef OPENSSL_NO_ENGINE
1587     e = setup_engine(bio_err, engine_id, 1);
1588 #endif
1589 
1590     if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass)) {
1591         BIO_printf(bio_err, "Error getting password\n");
1592         goto end;
1593     }
1594 
1595     if (s_key_file == NULL)
1596         s_key_file = s_cert_file;
1597 #ifndef OPENSSL_NO_TLSEXT
1598     if (s_key_file2 == NULL)
1599         s_key_file2 = s_cert_file2;
1600 #endif
1601 
1602     if (!load_excert(&exc, bio_err))
1603         goto end;
1604 
1605     if (nocert == 0) {
1606         s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
1607                          "server certificate private key file");
1608         if (!s_key) {
1609             ERR_print_errors(bio_err);
1610             goto end;
1611         }
1612 
1613         s_cert = load_cert(bio_err, s_cert_file, s_cert_format,
1614                            NULL, e, "server certificate file");
1615 
1616         if (!s_cert) {
1617             ERR_print_errors(bio_err);
1618             goto end;
1619         }
1620         if (s_chain_file) {
1621             s_chain = load_certs(bio_err, s_chain_file, FORMAT_PEM,
1622                                  NULL, e, "server certificate chain");
1623             if (!s_chain)
1624                 goto end;
1625         }
1626 #ifndef OPENSSL_NO_TLSEXT
1627         if (tlsextcbp.servername) {
1628             s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
1629                               "second server certificate private key file");
1630             if (!s_key2) {
1631                 ERR_print_errors(bio_err);
1632                 goto end;
1633             }
1634 
1635             s_cert2 = load_cert(bio_err, s_cert_file2, s_cert_format,
1636                                 NULL, e, "second server certificate file");
1637 
1638             if (!s_cert2) {
1639                 ERR_print_errors(bio_err);
1640                 goto end;
1641             }
1642         }
1643 #endif                          /* OPENSSL_NO_TLSEXT */
1644     }
1645 #if !defined(OPENSSL_NO_TLSEXT)
1646 # if !defined(OPENSSL_NO_NEXTPROTONEG)
1647     if (next_proto_neg_in) {
1648         unsigned short len;
1649         next_proto.data = next_protos_parse(&len, next_proto_neg_in);
1650         if (next_proto.data == NULL)
1651             goto end;
1652         next_proto.len = len;
1653     } else {
1654         next_proto.data = NULL;
1655     }
1656 # endif
1657     alpn_ctx.data = NULL;
1658     if (alpn_in) {
1659         unsigned short len;
1660         alpn_ctx.data = next_protos_parse(&len, alpn_in);
1661         if (alpn_ctx.data == NULL)
1662             goto end;
1663         alpn_ctx.len = len;
1664     }
1665 #endif
1666 
1667     if (crl_file) {
1668         X509_CRL *crl;
1669         crl = load_crl(crl_file, crl_format);
1670         if (!crl) {
1671             BIO_puts(bio_err, "Error loading CRL\n");
1672             ERR_print_errors(bio_err);
1673             goto end;
1674         }
1675         crls = sk_X509_CRL_new_null();
1676         if (!crls || !sk_X509_CRL_push(crls, crl)) {
1677             BIO_puts(bio_err, "Error adding CRL\n");
1678             ERR_print_errors(bio_err);
1679             X509_CRL_free(crl);
1680             goto end;
1681         }
1682     }
1683 
1684     if (s_dcert_file) {
1685 
1686         if (s_dkey_file == NULL)
1687             s_dkey_file = s_dcert_file;
1688 
1689         s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
1690                           0, dpass, e, "second certificate private key file");
1691         if (!s_dkey) {
1692             ERR_print_errors(bio_err);
1693             goto end;
1694         }
1695 
1696         s_dcert = load_cert(bio_err, s_dcert_file, s_dcert_format,
1697                             NULL, e, "second server certificate file");
1698 
1699         if (!s_dcert) {
1700             ERR_print_errors(bio_err);
1701             goto end;
1702         }
1703         if (s_dchain_file) {
1704             s_dchain = load_certs(bio_err, s_dchain_file, FORMAT_PEM,
1705                                   NULL, e, "second server certificate chain");
1706             if (!s_dchain)
1707                 goto end;
1708         }
1709 
1710     }
1711 
1712     if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1713         && !RAND_status()) {
1714         BIO_printf(bio_err,
1715                    "warning, not much extra random data, consider using the -rand option\n");
1716     }
1717     if (inrand != NULL)
1718         BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
1719                    app_RAND_load_files(inrand));
1720 
1721     if (bio_s_out == NULL) {
1722         if (s_quiet && !s_debug) {
1723             bio_s_out = BIO_new(BIO_s_null());
1724             if (s_msg && !bio_s_msg)
1725                 bio_s_msg = BIO_new_fp(stdout, BIO_NOCLOSE);
1726         } else {
1727             if (bio_s_out == NULL)
1728                 bio_s_out = BIO_new_fp(stdout, BIO_NOCLOSE);
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 (ctx == NULL) {
1747         ERR_print_errors(bio_err);
1748         goto end;
1749     }
1750     if (session_id_prefix) {
1751         if (strlen(session_id_prefix) >= 32)
1752             BIO_printf(bio_err,
1753                        "warning: id_prefix is too long, only one new session will be possible\n");
1754         else if (strlen(session_id_prefix) >= 16)
1755             BIO_printf(bio_err,
1756                        "warning: id_prefix is too long if you use SSLv2\n");
1757         if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) {
1758             BIO_printf(bio_err, "error setting 'id_prefix'\n");
1759             ERR_print_errors(bio_err);
1760             goto end;
1761         }
1762         BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix);
1763     }
1764     SSL_CTX_set_quiet_shutdown(ctx, 1);
1765     if (hack)
1766         SSL_CTX_set_options(ctx, SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1767     if (exc)
1768         ssl_ctx_set_excert(ctx, exc);
1769 
1770     if (state)
1771         SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1772     if (no_cache)
1773         SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1774     else if (ext_cache)
1775         init_session_cache_ctx(ctx);
1776     else
1777         SSL_CTX_sess_set_cache_size(ctx, 128);
1778 
1779 #ifndef OPENSSL_NO_SRTP
1780     if (srtp_profiles != NULL)
1781         SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1782 #endif
1783 
1784 #if 0
1785     if (cipher == NULL)
1786         cipher = getenv("SSL_CIPHER");
1787 #endif
1788 
1789 #if 0
1790     if (s_cert_file == NULL) {
1791         BIO_printf(bio_err,
1792                    "You must specify a certificate file for the server to use\n");
1793         goto end;
1794     }
1795 #endif
1796 
1797     if ((!SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) ||
1798         (!SSL_CTX_set_default_verify_paths(ctx))) {
1799         /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1800         ERR_print_errors(bio_err);
1801         /* goto end; */
1802     }
1803     if (vpm)
1804         SSL_CTX_set1_param(ctx, vpm);
1805 
1806     ssl_ctx_add_crls(ctx, crls, 0);
1807 
1808     if (!args_ssl_call(ctx, bio_err, cctx, ssl_args, no_ecdhe, no_jpake))
1809         goto end;
1810 
1811     if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1812                          crls, crl_download)) {
1813         BIO_printf(bio_err, "Error loading store locations\n");
1814         ERR_print_errors(bio_err);
1815         goto end;
1816     }
1817 #ifndef OPENSSL_NO_TLSEXT
1818     if (s_cert2) {
1819         ctx2 = SSL_CTX_new(meth);
1820         if (ctx2 == NULL) {
1821             ERR_print_errors(bio_err);
1822             goto end;
1823         }
1824     }
1825 
1826     if (ctx2) {
1827         BIO_printf(bio_s_out, "Setting secondary ctx parameters\n");
1828 
1829         if (session_id_prefix) {
1830             if (strlen(session_id_prefix) >= 32)
1831                 BIO_printf(bio_err,
1832                            "warning: id_prefix is too long, only one new session will be possible\n");
1833             else if (strlen(session_id_prefix) >= 16)
1834                 BIO_printf(bio_err,
1835                            "warning: id_prefix is too long if you use SSLv2\n");
1836             if (!SSL_CTX_set_generate_session_id(ctx2, generate_session_id)) {
1837                 BIO_printf(bio_err, "error setting 'id_prefix'\n");
1838                 ERR_print_errors(bio_err);
1839                 goto end;
1840             }
1841             BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix);
1842         }
1843         SSL_CTX_set_quiet_shutdown(ctx2, 1);
1844         if (hack)
1845             SSL_CTX_set_options(ctx2, SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1846         if (exc)
1847             ssl_ctx_set_excert(ctx2, exc);
1848 
1849         if (state)
1850             SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback);
1851 
1852         if (no_cache)
1853             SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF);
1854         else if (ext_cache)
1855             init_session_cache_ctx(ctx2);
1856         else
1857             SSL_CTX_sess_set_cache_size(ctx2, 128);
1858 
1859         if ((!SSL_CTX_load_verify_locations(ctx2, CAfile, CApath)) ||
1860             (!SSL_CTX_set_default_verify_paths(ctx2))) {
1861             ERR_print_errors(bio_err);
1862         }
1863         if (vpm)
1864             SSL_CTX_set1_param(ctx2, vpm);
1865 
1866         ssl_ctx_add_crls(ctx2, crls, 0);
1867 
1868         if (!args_ssl_call(ctx2, bio_err, cctx, ssl_args, no_ecdhe, no_jpake))
1869             goto end;
1870 
1871     }
1872 # ifndef OPENSSL_NO_NEXTPROTONEG
1873     if (next_proto.data)
1874         SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb,
1875                                               &next_proto);
1876 # endif
1877     if (alpn_ctx.data)
1878         SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx);
1879 #endif
1880 
1881 #ifndef OPENSSL_NO_DH
1882     if (!no_dhe) {
1883         DH *dh = NULL;
1884 
1885         if (dhfile)
1886             dh = load_dh_param(dhfile);
1887         else if (s_cert_file)
1888             dh = load_dh_param(s_cert_file);
1889 
1890         if (dh != NULL) {
1891             BIO_printf(bio_s_out, "Setting temp DH parameters\n");
1892         } else {
1893             BIO_printf(bio_s_out, "Using default temp DH parameters\n");
1894             dh = get_dh2048();
1895             if (dh == NULL) {
1896                 ERR_print_errors(bio_err);
1897                 goto end;
1898             }
1899         }
1900         (void)BIO_flush(bio_s_out);
1901 
1902         SSL_CTX_set_tmp_dh(ctx, dh);
1903 # ifndef OPENSSL_NO_TLSEXT
1904         if (ctx2) {
1905             if (!dhfile) {
1906                 DH *dh2 = load_dh_param(s_cert_file2);
1907                 if (dh2 != NULL) {
1908                     BIO_printf(bio_s_out, "Setting temp DH parameters\n");
1909                     (void)BIO_flush(bio_s_out);
1910 
1911                     DH_free(dh);
1912                     dh = dh2;
1913                 }
1914             }
1915             SSL_CTX_set_tmp_dh(ctx2, dh);
1916         }
1917 # endif
1918         DH_free(dh);
1919     }
1920 #endif
1921 
1922     if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain))
1923         goto end;
1924 #ifndef OPENSSL_NO_TLSEXT
1925     if (s_serverinfo_file != NULL
1926         && !SSL_CTX_use_serverinfo_file(ctx, s_serverinfo_file)) {
1927         ERR_print_errors(bio_err);
1928         goto end;
1929     }
1930 #endif
1931 #ifndef OPENSSL_NO_TLSEXT
1932     if (ctx2 && !set_cert_key_stuff(ctx2, s_cert2, s_key2, NULL, build_chain))
1933         goto end;
1934 #endif
1935     if (s_dcert != NULL) {
1936         if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain))
1937             goto end;
1938     }
1939 #ifndef OPENSSL_NO_RSA
1940 # if 1
1941     if (!no_tmp_rsa) {
1942         SSL_CTX_set_tmp_rsa_callback(ctx, tmp_rsa_cb);
1943 #  ifndef OPENSSL_NO_TLSEXT
1944         if (ctx2)
1945             SSL_CTX_set_tmp_rsa_callback(ctx2, tmp_rsa_cb);
1946 #  endif
1947     }
1948 # else
1949     if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx)) {
1950         RSA *rsa;
1951 
1952         BIO_printf(bio_s_out, "Generating temp (512 bit) RSA key...");
1953         BIO_flush(bio_s_out);
1954 
1955         rsa = RSA_generate_key(512, RSA_F4, NULL);
1956 
1957         if (!SSL_CTX_set_tmp_rsa(ctx, rsa)) {
1958             ERR_print_errors(bio_err);
1959             goto end;
1960         }
1961 #  ifndef OPENSSL_NO_TLSEXT
1962         if (ctx2) {
1963             if (!SSL_CTX_set_tmp_rsa(ctx2, rsa)) {
1964                 ERR_print_errors(bio_err);
1965                 goto end;
1966             }
1967         }
1968 #  endif
1969         RSA_free(rsa);
1970         BIO_printf(bio_s_out, "\n");
1971     }
1972 # endif
1973 #endif
1974 
1975 #ifndef OPENSSL_NO_PSK
1976 # ifdef OPENSSL_NO_JPAKE
1977     if (psk_key != NULL)
1978 # else
1979     if (psk_key != NULL || jpake_secret)
1980 # endif
1981     {
1982         if (s_debug)
1983             BIO_printf(bio_s_out,
1984                        "PSK key given or JPAKE in use, setting server callback\n");
1985         SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
1986     }
1987 
1988     if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint)) {
1989         BIO_printf(bio_err, "error setting PSK identity hint to context\n");
1990         ERR_print_errors(bio_err);
1991         goto end;
1992     }
1993 #endif
1994 
1995     SSL_CTX_set_verify(ctx, s_server_verify, verify_callback);
1996     SSL_CTX_set_session_id_context(ctx, (void *)&s_server_session_id_context,
1997                                    sizeof s_server_session_id_context);
1998 
1999     /* Set DTLS cookie generation and verification callbacks */
2000     SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
2001     SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
2002 
2003 #ifndef OPENSSL_NO_TLSEXT
2004     if (ctx2) {
2005         SSL_CTX_set_verify(ctx2, s_server_verify, verify_callback);
2006         SSL_CTX_set_session_id_context(ctx2,
2007                                        (void *)&s_server_session_id_context,
2008                                        sizeof s_server_session_id_context);
2009 
2010         tlsextcbp.biodebug = bio_s_out;
2011         SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
2012         SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
2013         SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
2014         SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
2015     }
2016 #endif
2017 
2018 #ifndef OPENSSL_NO_SRP
2019     if (srp_verifier_file != NULL) {
2020         srp_callback_parm.vb = SRP_VBASE_new(srpuserseed);
2021         srp_callback_parm.user = NULL;
2022         srp_callback_parm.login = NULL;
2023         if ((ret =
2024              SRP_VBASE_init(srp_callback_parm.vb,
2025                             srp_verifier_file)) != SRP_NO_ERROR) {
2026             BIO_printf(bio_err,
2027                        "Cannot initialize SRP verifier file \"%s\":ret=%d\n",
2028                        srp_verifier_file, ret);
2029             goto end;
2030         }
2031         SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE, verify_callback);
2032         SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm);
2033         SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
2034     } else
2035 #endif
2036     if (CAfile != NULL) {
2037         SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile));
2038 #ifndef OPENSSL_NO_TLSEXT
2039         if (ctx2)
2040             SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile));
2041 #endif
2042     }
2043 
2044     BIO_printf(bio_s_out, "ACCEPT\n");
2045     (void)BIO_flush(bio_s_out);
2046     if (rev)
2047         do_server(port, socket_type, &accept_socket, rev_body, context,
2048                   naccept);
2049     else if (www)
2050         do_server(port, socket_type, &accept_socket, www_body, context,
2051                   naccept);
2052     else
2053         do_server(port, socket_type, &accept_socket, sv_body, context,
2054                   naccept);
2055     print_stats(bio_s_out, ctx);
2056     ret = 0;
2057  end:
2058     if (ctx != NULL)
2059         SSL_CTX_free(ctx);
2060     if (s_cert)
2061         X509_free(s_cert);
2062     if (crls)
2063         sk_X509_CRL_pop_free(crls, X509_CRL_free);
2064     if (s_dcert)
2065         X509_free(s_dcert);
2066     if (s_key)
2067         EVP_PKEY_free(s_key);
2068     if (s_dkey)
2069         EVP_PKEY_free(s_dkey);
2070     if (s_chain)
2071         sk_X509_pop_free(s_chain, X509_free);
2072     if (s_dchain)
2073         sk_X509_pop_free(s_dchain, X509_free);
2074     if (pass)
2075         OPENSSL_free(pass);
2076     if (dpass)
2077         OPENSSL_free(dpass);
2078     if (vpm)
2079         X509_VERIFY_PARAM_free(vpm);
2080     free_sessions();
2081 #ifndef OPENSSL_NO_TLSEXT
2082     if (tlscstatp.host)
2083         OPENSSL_free(tlscstatp.host);
2084     if (tlscstatp.port)
2085         OPENSSL_free(tlscstatp.port);
2086     if (tlscstatp.path)
2087         OPENSSL_free(tlscstatp.path);
2088     if (ctx2 != NULL)
2089         SSL_CTX_free(ctx2);
2090     if (s_cert2)
2091         X509_free(s_cert2);
2092     if (s_key2)
2093         EVP_PKEY_free(s_key2);
2094     if (serverinfo_in != NULL)
2095         BIO_free(serverinfo_in);
2096 # ifndef OPENSSL_NO_NEXTPROTONEG
2097     if (next_proto.data)
2098         OPENSSL_free(next_proto.data);
2099 # endif
2100     if (alpn_ctx.data)
2101         OPENSSL_free(alpn_ctx.data);
2102 #endif
2103     ssl_excert_free(exc);
2104     if (ssl_args)
2105         sk_OPENSSL_STRING_free(ssl_args);
2106     if (cctx)
2107         SSL_CONF_CTX_free(cctx);
2108 #ifndef OPENSSL_NO_JPAKE
2109     if (jpake_secret && psk_key)
2110         OPENSSL_free(psk_key);
2111 #endif
2112     if (bio_s_out != NULL) {
2113         BIO_free(bio_s_out);
2114         bio_s_out = NULL;
2115     }
2116     if (bio_s_msg != NULL) {
2117         BIO_free(bio_s_msg);
2118         bio_s_msg = NULL;
2119     }
2120     apps_shutdown();
2121     OPENSSL_EXIT(ret);
2122 }
2123 
2124 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
2125 {
2126     BIO_printf(bio, "%4ld items in the session cache\n",
2127                SSL_CTX_sess_number(ssl_ctx));
2128     BIO_printf(bio, "%4ld client connects (SSL_connect())\n",
2129                SSL_CTX_sess_connect(ssl_ctx));
2130     BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n",
2131                SSL_CTX_sess_connect_renegotiate(ssl_ctx));
2132     BIO_printf(bio, "%4ld client connects that finished\n",
2133                SSL_CTX_sess_connect_good(ssl_ctx));
2134     BIO_printf(bio, "%4ld server accepts (SSL_accept())\n",
2135                SSL_CTX_sess_accept(ssl_ctx));
2136     BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n",
2137                SSL_CTX_sess_accept_renegotiate(ssl_ctx));
2138     BIO_printf(bio, "%4ld server accepts that finished\n",
2139                SSL_CTX_sess_accept_good(ssl_ctx));
2140     BIO_printf(bio, "%4ld session cache hits\n", SSL_CTX_sess_hits(ssl_ctx));
2141     BIO_printf(bio, "%4ld session cache misses\n",
2142                SSL_CTX_sess_misses(ssl_ctx));
2143     BIO_printf(bio, "%4ld session cache timeouts\n",
2144                SSL_CTX_sess_timeouts(ssl_ctx));
2145     BIO_printf(bio, "%4ld callback cache hits\n",
2146                SSL_CTX_sess_cb_hits(ssl_ctx));
2147     BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n",
2148                SSL_CTX_sess_cache_full(ssl_ctx),
2149                SSL_CTX_sess_get_cache_size(ssl_ctx));
2150 }
2151 
2152 static int sv_body(char *hostname, int s, int stype, unsigned char *context)
2153 {
2154     char *buf = NULL;
2155     fd_set readfds;
2156     int ret = 1, width;
2157     int k, i;
2158     unsigned long l;
2159     SSL *con = NULL;
2160     BIO *sbio;
2161 #ifndef OPENSSL_NO_KRB5
2162     KSSL_CTX *kctx;
2163 #endif
2164     struct timeval timeout;
2165 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
2166     struct timeval tv;
2167 #else
2168     struct timeval *timeoutp;
2169 #endif
2170 
2171     if ((buf = OPENSSL_malloc(bufsize)) == NULL) {
2172         BIO_printf(bio_err, "out of memory\n");
2173         goto err;
2174     }
2175 #ifdef FIONBIO
2176     if (s_nbio) {
2177         unsigned long sl = 1;
2178 
2179         if (!s_quiet)
2180             BIO_printf(bio_err, "turning on non blocking io\n");
2181         if (BIO_socket_ioctl(s, FIONBIO, &sl) < 0)
2182             ERR_print_errors(bio_err);
2183     }
2184 #endif
2185 
2186     if (con == NULL) {
2187         con = SSL_new(ctx);
2188 #ifndef OPENSSL_NO_TLSEXT
2189         if (s_tlsextdebug) {
2190             SSL_set_tlsext_debug_callback(con, tlsext_cb);
2191             SSL_set_tlsext_debug_arg(con, bio_s_out);
2192         }
2193         if (s_tlsextstatus) {
2194             SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
2195             tlscstatp.err = bio_err;
2196             SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
2197         }
2198 #endif
2199 #ifndef OPENSSL_NO_KRB5
2200         if ((kctx = kssl_ctx_new()) != NULL) {
2201             SSL_set0_kssl_ctx(con, kctx);
2202             kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2203             kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2204         }
2205 #endif                          /* OPENSSL_NO_KRB5 */
2206         if (context)
2207             SSL_set_session_id_context(con, context, strlen((char *)context));
2208     }
2209     SSL_clear(con);
2210 #if 0
2211 # ifdef TLSEXT_TYPE_opaque_prf_input
2212     SSL_set_tlsext_opaque_prf_input(con, "Test server", 11);
2213 # endif
2214 #endif
2215 
2216     if (stype == SOCK_DGRAM) {
2217 
2218         sbio = BIO_new_dgram(s, BIO_NOCLOSE);
2219 
2220         if (enable_timeouts) {
2221             timeout.tv_sec = 0;
2222             timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2223             BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2224 
2225             timeout.tv_sec = 0;
2226             timeout.tv_usec = DGRAM_SND_TIMEOUT;
2227             BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2228         }
2229 
2230         if (socket_mtu) {
2231             if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2232                 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2233                            DTLS_get_link_min_mtu(con));
2234                 ret = -1;
2235                 BIO_free(sbio);
2236                 goto err;
2237             }
2238             SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2239             if (!DTLS_set_link_mtu(con, socket_mtu)) {
2240                 BIO_printf(bio_err, "Failed to set MTU\n");
2241                 ret = -1;
2242                 BIO_free(sbio);
2243                 goto err;
2244             }
2245         } else
2246             /* want to do MTU discovery */
2247             BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2248 
2249         /* turn on cookie exchange */
2250         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2251     } else
2252         sbio = BIO_new_socket(s, BIO_NOCLOSE);
2253 
2254     if (s_nbio_test) {
2255         BIO *test;
2256 
2257         test = BIO_new(BIO_f_nbio_test());
2258         sbio = BIO_push(test, sbio);
2259     }
2260 #ifndef OPENSSL_NO_JPAKE
2261     if (jpake_secret)
2262         jpake_server_auth(bio_s_out, sbio, jpake_secret);
2263 #endif
2264 
2265     SSL_set_bio(con, sbio, sbio);
2266     SSL_set_accept_state(con);
2267     /* SSL_set_fd(con,s); */
2268 
2269     if (s_debug) {
2270         SSL_set_debug(con, 1);
2271         BIO_set_callback(SSL_get_rbio(con), bio_dump_callback);
2272         BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
2273     }
2274     if (s_msg) {
2275 #ifndef OPENSSL_NO_SSL_TRACE
2276         if (s_msg == 2)
2277             SSL_set_msg_callback(con, SSL_trace);
2278         else
2279 #endif
2280             SSL_set_msg_callback(con, msg_cb);
2281         SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2282     }
2283 #ifndef OPENSSL_NO_TLSEXT
2284     if (s_tlsextdebug) {
2285         SSL_set_tlsext_debug_callback(con, tlsext_cb);
2286         SSL_set_tlsext_debug_arg(con, bio_s_out);
2287     }
2288 #endif
2289 
2290     width = s + 1;
2291     for (;;) {
2292         int read_from_terminal;
2293         int read_from_sslcon;
2294 
2295         read_from_terminal = 0;
2296         read_from_sslcon = SSL_pending(con);
2297 
2298         if (!read_from_sslcon) {
2299             FD_ZERO(&readfds);
2300 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_BEOS_R5)
2301             openssl_fdset(fileno(stdin), &readfds);
2302 #endif
2303             openssl_fdset(s, &readfds);
2304             /*
2305              * Note: under VMS with SOCKETSHR the second parameter is
2306              * currently of type (int *) whereas under other systems it is
2307              * (void *) if you don't have a cast it will choke the compiler:
2308              * if you do have a cast then you can either go for (int *) or
2309              * (void *).
2310              */
2311 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
2312             /*
2313              * Under DOS (non-djgpp) and Windows we can't select on stdin:
2314              * only on sockets. As a workaround we timeout the select every
2315              * second and check for any keypress. In a proper Windows
2316              * application we wouldn't do this because it is inefficient.
2317              */
2318             tv.tv_sec = 1;
2319             tv.tv_usec = 0;
2320             i = select(width, (void *)&readfds, NULL, NULL, &tv);
2321             if ((i < 0) || (!i && !_kbhit()))
2322                 continue;
2323             if (_kbhit())
2324                 read_from_terminal = 1;
2325 #elif defined(OPENSSL_SYS_BEOS_R5)
2326             /* Under BeOS-R5 the situation is similar to DOS */
2327             tv.tv_sec = 1;
2328             tv.tv_usec = 0;
2329             (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
2330             i = select(width, (void *)&readfds, NULL, NULL, &tv);
2331             if ((i < 0) || (!i && read(fileno(stdin), buf, 0) < 0))
2332                 continue;
2333             if (read(fileno(stdin), buf, 0) >= 0)
2334                 read_from_terminal = 1;
2335             (void)fcntl(fileno(stdin), F_SETFL, 0);
2336 #else
2337             if ((SSL_version(con) == DTLS1_VERSION) &&
2338                 DTLSv1_get_timeout(con, &timeout))
2339                 timeoutp = &timeout;
2340             else
2341                 timeoutp = NULL;
2342 
2343             i = select(width, (void *)&readfds, NULL, NULL, timeoutp);
2344 
2345             if ((SSL_version(con) == DTLS1_VERSION)
2346                 && DTLSv1_handle_timeout(con) > 0) {
2347                 BIO_printf(bio_err, "TIMEOUT occured\n");
2348             }
2349 
2350             if (i <= 0)
2351                 continue;
2352             if (FD_ISSET(fileno(stdin), &readfds))
2353                 read_from_terminal = 1;
2354 #endif
2355             if (FD_ISSET(s, &readfds))
2356                 read_from_sslcon = 1;
2357         }
2358         if (read_from_terminal) {
2359             if (s_crlf) {
2360                 int j, lf_num;
2361 
2362                 i = raw_read_stdin(buf, bufsize / 2);
2363                 lf_num = 0;
2364                 /* both loops are skipped when i <= 0 */
2365                 for (j = 0; j < i; j++)
2366                     if (buf[j] == '\n')
2367                         lf_num++;
2368                 for (j = i - 1; j >= 0; j--) {
2369                     buf[j + lf_num] = buf[j];
2370                     if (buf[j] == '\n') {
2371                         lf_num--;
2372                         i++;
2373                         buf[j + lf_num] = '\r';
2374                     }
2375                 }
2376                 assert(lf_num == 0);
2377             } else
2378                 i = raw_read_stdin(buf, bufsize);
2379             if (!s_quiet && !s_brief) {
2380                 if ((i <= 0) || (buf[0] == 'Q')) {
2381                     BIO_printf(bio_s_out, "DONE\n");
2382                     SHUTDOWN(s);
2383                     close_accept_socket();
2384                     ret = -11;
2385                     goto err;
2386                 }
2387                 if ((i <= 0) || (buf[0] == 'q')) {
2388                     BIO_printf(bio_s_out, "DONE\n");
2389                     if (SSL_version(con) != DTLS1_VERSION)
2390                         SHUTDOWN(s);
2391                     /*
2392                      * close_accept_socket(); ret= -11;
2393                      */
2394                     goto err;
2395                 }
2396 #ifndef OPENSSL_NO_HEARTBEATS
2397                 if ((buf[0] == 'B') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2398                     BIO_printf(bio_err, "HEARTBEATING\n");
2399                     SSL_heartbeat(con);
2400                     i = 0;
2401                     continue;
2402                 }
2403 #endif
2404                 if ((buf[0] == 'r') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2405                     SSL_renegotiate(con);
2406                     i = SSL_do_handshake(con);
2407                     printf("SSL_do_handshake -> %d\n", i);
2408                     i = 0;      /* 13; */
2409                     continue;
2410                     /*
2411                      * strcpy(buf,"server side RE-NEGOTIATE\n");
2412                      */
2413                 }
2414                 if ((buf[0] == 'R') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2415                     SSL_set_verify(con,
2416                                    SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE,
2417                                    NULL);
2418                     SSL_renegotiate(con);
2419                     i = SSL_do_handshake(con);
2420                     printf("SSL_do_handshake -> %d\n", i);
2421                     i = 0;      /* 13; */
2422                     continue;
2423                     /*
2424                      * strcpy(buf,"server side RE-NEGOTIATE asking for client
2425                      * cert\n");
2426                      */
2427                 }
2428                 if (buf[0] == 'P') {
2429                     static const char *str = "Lets print some clear text\n";
2430                     BIO_write(SSL_get_wbio(con), str, strlen(str));
2431                 }
2432                 if (buf[0] == 'S') {
2433                     print_stats(bio_s_out, SSL_get_SSL_CTX(con));
2434                 }
2435             }
2436 #ifdef CHARSET_EBCDIC
2437             ebcdic2ascii(buf, buf, i);
2438 #endif
2439             l = k = 0;
2440             for (;;) {
2441                 /* should do a select for the write */
2442 #ifdef RENEG
2443                 {
2444                     static count = 0;
2445                     if (++count == 100) {
2446                         count = 0;
2447                         SSL_renegotiate(con);
2448                     }
2449                 }
2450 #endif
2451                 k = SSL_write(con, &(buf[l]), (unsigned int)i);
2452 #ifndef OPENSSL_NO_SRP
2453                 while (SSL_get_error(con, k) == SSL_ERROR_WANT_X509_LOOKUP) {
2454                     BIO_printf(bio_s_out, "LOOKUP renego during write\n");
2455                     srp_callback_parm.user =
2456                         SRP_VBASE_get_by_user(srp_callback_parm.vb,
2457                                               srp_callback_parm.login);
2458                     if (srp_callback_parm.user)
2459                         BIO_printf(bio_s_out, "LOOKUP done %s\n",
2460                                    srp_callback_parm.user->info);
2461                     else
2462                         BIO_printf(bio_s_out, "LOOKUP not successful\n");
2463                     k = SSL_write(con, &(buf[l]), (unsigned int)i);
2464                 }
2465 #endif
2466                 switch (SSL_get_error(con, k)) {
2467                 case SSL_ERROR_NONE:
2468                     break;
2469                 case SSL_ERROR_WANT_WRITE:
2470                 case SSL_ERROR_WANT_READ:
2471                 case SSL_ERROR_WANT_X509_LOOKUP:
2472                     BIO_printf(bio_s_out, "Write BLOCK\n");
2473                     break;
2474                 case SSL_ERROR_SYSCALL:
2475                 case SSL_ERROR_SSL:
2476                     BIO_printf(bio_s_out, "ERROR\n");
2477                     ERR_print_errors(bio_err);
2478                     ret = 1;
2479                     goto err;
2480                     /* break; */
2481                 case SSL_ERROR_ZERO_RETURN:
2482                     BIO_printf(bio_s_out, "DONE\n");
2483                     ret = 1;
2484                     goto err;
2485                 }
2486                 if (k > 0) {
2487                     l += k;
2488                     i -= k;
2489                 }
2490                 if (i <= 0)
2491                     break;
2492             }
2493         }
2494         if (read_from_sslcon) {
2495             if (!SSL_is_init_finished(con)) {
2496                 i = init_ssl_connection(con);
2497 
2498                 if (i < 0) {
2499                     ret = 0;
2500                     goto err;
2501                 } else if (i == 0) {
2502                     ret = 1;
2503                     goto err;
2504                 }
2505             } else {
2506  again:
2507                 i = SSL_read(con, (char *)buf, bufsize);
2508 #ifndef OPENSSL_NO_SRP
2509                 while (SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
2510                     BIO_printf(bio_s_out, "LOOKUP renego during read\n");
2511                     srp_callback_parm.user =
2512                         SRP_VBASE_get_by_user(srp_callback_parm.vb,
2513                                               srp_callback_parm.login);
2514                     if (srp_callback_parm.user)
2515                         BIO_printf(bio_s_out, "LOOKUP done %s\n",
2516                                    srp_callback_parm.user->info);
2517                     else
2518                         BIO_printf(bio_s_out, "LOOKUP not successful\n");
2519                     i = SSL_read(con, (char *)buf, bufsize);
2520                 }
2521 #endif
2522                 switch (SSL_get_error(con, i)) {
2523                 case SSL_ERROR_NONE:
2524 #ifdef CHARSET_EBCDIC
2525                     ascii2ebcdic(buf, buf, i);
2526 #endif
2527                     raw_write_stdout(buf, (unsigned int)i);
2528                     if (SSL_pending(con))
2529                         goto again;
2530                     break;
2531                 case SSL_ERROR_WANT_WRITE:
2532                 case SSL_ERROR_WANT_READ:
2533                     BIO_printf(bio_s_out, "Read BLOCK\n");
2534                     break;
2535                 case SSL_ERROR_SYSCALL:
2536                 case SSL_ERROR_SSL:
2537                     BIO_printf(bio_s_out, "ERROR\n");
2538                     ERR_print_errors(bio_err);
2539                     ret = 1;
2540                     goto err;
2541                 case SSL_ERROR_ZERO_RETURN:
2542                     BIO_printf(bio_s_out, "DONE\n");
2543                     ret = 1;
2544                     goto err;
2545                 }
2546             }
2547         }
2548     }
2549  err:
2550     if (con != NULL) {
2551         BIO_printf(bio_s_out, "shutting down SSL\n");
2552 #if 1
2553         SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
2554 #else
2555         SSL_shutdown(con);
2556 #endif
2557         SSL_free(con);
2558     }
2559     BIO_printf(bio_s_out, "CONNECTION CLOSED\n");
2560     if (buf != NULL) {
2561         OPENSSL_cleanse(buf, bufsize);
2562         OPENSSL_free(buf);
2563     }
2564     if (ret >= 0)
2565         BIO_printf(bio_s_out, "ACCEPT\n");
2566     return (ret);
2567 }
2568 
2569 static void close_accept_socket(void)
2570 {
2571     BIO_printf(bio_err, "shutdown accept socket\n");
2572     if (accept_socket >= 0) {
2573         SHUTDOWN2(accept_socket);
2574     }
2575 }
2576 
2577 static int init_ssl_connection(SSL *con)
2578 {
2579     int i;
2580     const char *str;
2581     X509 *peer;
2582     long verify_error;
2583     MS_STATIC char buf[BUFSIZ];
2584 #ifndef OPENSSL_NO_KRB5
2585     char *client_princ;
2586 #endif
2587 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2588     const unsigned char *next_proto_neg;
2589     unsigned next_proto_neg_len;
2590 #endif
2591     unsigned char *exportedkeymat;
2592 
2593     i = SSL_accept(con);
2594 #ifdef CERT_CB_TEST_RETRY
2595     {
2596         while (i <= 0 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP
2597                && SSL_state(con) == SSL3_ST_SR_CLNT_HELLO_C) {
2598             fprintf(stderr,
2599                     "LOOKUP from certificate callback during accept\n");
2600             i = SSL_accept(con);
2601         }
2602     }
2603 #endif
2604 #ifndef OPENSSL_NO_SRP
2605     while (i <= 0 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
2606         BIO_printf(bio_s_out, "LOOKUP during accept %s\n",
2607                    srp_callback_parm.login);
2608         srp_callback_parm.user =
2609             SRP_VBASE_get_by_user(srp_callback_parm.vb,
2610                                   srp_callback_parm.login);
2611         if (srp_callback_parm.user)
2612             BIO_printf(bio_s_out, "LOOKUP done %s\n",
2613                        srp_callback_parm.user->info);
2614         else
2615             BIO_printf(bio_s_out, "LOOKUP not successful\n");
2616         i = SSL_accept(con);
2617     }
2618 #endif
2619 
2620     if (i <= 0) {
2621         if (BIO_sock_should_retry(i)) {
2622             BIO_printf(bio_s_out, "DELAY\n");
2623             return (1);
2624         }
2625 
2626         BIO_printf(bio_err, "ERROR\n");
2627         verify_error = SSL_get_verify_result(con);
2628         if (verify_error != X509_V_OK) {
2629             BIO_printf(bio_err, "verify error:%s\n",
2630                        X509_verify_cert_error_string(verify_error));
2631         }
2632         /* Always print any error messages */
2633         ERR_print_errors(bio_err);
2634         return (0);
2635     }
2636 
2637     if (s_brief)
2638         print_ssl_summary(bio_err, con);
2639 
2640     PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con));
2641 
2642     peer = SSL_get_peer_certificate(con);
2643     if (peer != NULL) {
2644         BIO_printf(bio_s_out, "Client certificate\n");
2645         PEM_write_bio_X509(bio_s_out, peer);
2646         X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof buf);
2647         BIO_printf(bio_s_out, "subject=%s\n", buf);
2648         X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof buf);
2649         BIO_printf(bio_s_out, "issuer=%s\n", buf);
2650         X509_free(peer);
2651     }
2652 
2653     if (SSL_get_shared_ciphers(con, buf, sizeof buf) != NULL)
2654         BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf);
2655     str = SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2656     ssl_print_sigalgs(bio_s_out, con);
2657 #ifndef OPENSSL_NO_EC
2658     ssl_print_point_formats(bio_s_out, con);
2659     ssl_print_curves(bio_s_out, con, 0);
2660 #endif
2661     BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)");
2662 
2663 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2664     SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2665     if (next_proto_neg) {
2666         BIO_printf(bio_s_out, "NEXTPROTO is ");
2667         BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2668         BIO_printf(bio_s_out, "\n");
2669     }
2670 #endif
2671 #ifndef OPENSSL_NO_SRTP
2672     {
2673         SRTP_PROTECTION_PROFILE *srtp_profile
2674             = SSL_get_selected_srtp_profile(con);
2675 
2676         if (srtp_profile)
2677             BIO_printf(bio_s_out, "SRTP Extension negotiated, profile=%s\n",
2678                        srtp_profile->name);
2679     }
2680 #endif
2681     if (SSL_cache_hit(con))
2682         BIO_printf(bio_s_out, "Reused session-id\n");
2683     if (SSL_ctrl(con, SSL_CTRL_GET_FLAGS, 0, NULL) &
2684         TLS1_FLAGS_TLS_PADDING_BUG)
2685         BIO_printf(bio_s_out, "Peer has incorrect TLSv1 block padding\n");
2686 #ifndef OPENSSL_NO_KRB5
2687     client_princ = kssl_ctx_get0_client_princ(SSL_get0_kssl_ctx(con));
2688     if (client_princ != NULL) {
2689         BIO_printf(bio_s_out, "Kerberos peer principal is %s\n",
2690                    client_princ);
2691     }
2692 #endif                          /* OPENSSL_NO_KRB5 */
2693     BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
2694                SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
2695     if (keymatexportlabel != NULL) {
2696         BIO_printf(bio_s_out, "Keying material exporter:\n");
2697         BIO_printf(bio_s_out, "    Label: '%s'\n", keymatexportlabel);
2698         BIO_printf(bio_s_out, "    Length: %i bytes\n", keymatexportlen);
2699         exportedkeymat = OPENSSL_malloc(keymatexportlen);
2700         if (exportedkeymat != NULL) {
2701             if (!SSL_export_keying_material(con, exportedkeymat,
2702                                             keymatexportlen,
2703                                             keymatexportlabel,
2704                                             strlen(keymatexportlabel),
2705                                             NULL, 0, 0)) {
2706                 BIO_printf(bio_s_out, "    Error\n");
2707             } else {
2708                 BIO_printf(bio_s_out, "    Keying material: ");
2709                 for (i = 0; i < keymatexportlen; i++)
2710                     BIO_printf(bio_s_out, "%02X", exportedkeymat[i]);
2711                 BIO_printf(bio_s_out, "\n");
2712             }
2713             OPENSSL_free(exportedkeymat);
2714         }
2715     }
2716 
2717     return (1);
2718 }
2719 
2720 #ifndef OPENSSL_NO_DH
2721 static DH *load_dh_param(const char *dhfile)
2722 {
2723     DH *ret = NULL;
2724     BIO *bio;
2725 
2726     if ((bio = BIO_new_file(dhfile, "r")) == NULL)
2727         goto err;
2728     ret = PEM_read_bio_DHparams(bio, NULL, NULL, NULL);
2729  err:
2730     if (bio != NULL)
2731         BIO_free(bio);
2732     return (ret);
2733 }
2734 #endif
2735 #ifndef OPENSSL_NO_KRB5
2736 char *client_princ;
2737 #endif
2738 
2739 #if 0
2740 static int load_CA(SSL_CTX *ctx, char *file)
2741 {
2742     FILE *in;
2743     X509 *x = NULL;
2744 
2745     if ((in = fopen(file, "r")) == NULL)
2746         return (0);
2747 
2748     for (;;) {
2749         if (PEM_read_X509(in, &x, NULL) == NULL)
2750             break;
2751         SSL_CTX_add_client_CA(ctx, x);
2752     }
2753     if (x != NULL)
2754         X509_free(x);
2755     fclose(in);
2756     return (1);
2757 }
2758 #endif
2759 
2760 static int www_body(char *hostname, int s, int stype, unsigned char *context)
2761 {
2762     char *buf = NULL;
2763     int ret = 1;
2764     int i, j, k, dot;
2765     SSL *con;
2766     const SSL_CIPHER *c;
2767     BIO *io, *ssl_bio, *sbio;
2768 #ifndef OPENSSL_NO_KRB5
2769     KSSL_CTX *kctx;
2770 #endif
2771 
2772     buf = OPENSSL_malloc(bufsize);
2773     if (buf == NULL)
2774         return (0);
2775     io = BIO_new(BIO_f_buffer());
2776     ssl_bio = BIO_new(BIO_f_ssl());
2777     if ((io == NULL) || (ssl_bio == NULL))
2778         goto err;
2779 
2780 #ifdef FIONBIO
2781     if (s_nbio) {
2782         unsigned long sl = 1;
2783 
2784         if (!s_quiet)
2785             BIO_printf(bio_err, "turning on non blocking io\n");
2786         if (BIO_socket_ioctl(s, FIONBIO, &sl) < 0)
2787             ERR_print_errors(bio_err);
2788     }
2789 #endif
2790 
2791     /* lets make the output buffer a reasonable size */
2792     if (!BIO_set_write_buffer_size(io, bufsize))
2793         goto err;
2794 
2795     if ((con = SSL_new(ctx)) == NULL)
2796         goto err;
2797 #ifndef OPENSSL_NO_TLSEXT
2798     if (s_tlsextdebug) {
2799         SSL_set_tlsext_debug_callback(con, tlsext_cb);
2800         SSL_set_tlsext_debug_arg(con, bio_s_out);
2801     }
2802 #endif
2803 #ifndef OPENSSL_NO_KRB5
2804     if ((kctx = kssl_ctx_new()) != NULL) {
2805         kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2806         kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2807     }
2808 #endif                          /* OPENSSL_NO_KRB5 */
2809     if (context)
2810         SSL_set_session_id_context(con, context, strlen((char *)context));
2811 
2812     sbio = BIO_new_socket(s, BIO_NOCLOSE);
2813     if (s_nbio_test) {
2814         BIO *test;
2815 
2816         test = BIO_new(BIO_f_nbio_test());
2817         sbio = BIO_push(test, sbio);
2818     }
2819     SSL_set_bio(con, sbio, sbio);
2820     SSL_set_accept_state(con);
2821 
2822     /* SSL_set_fd(con,s); */
2823     BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
2824     BIO_push(io, ssl_bio);
2825 #ifdef CHARSET_EBCDIC
2826     io = BIO_push(BIO_new(BIO_f_ebcdic_filter()), io);
2827 #endif
2828 
2829     if (s_debug) {
2830         SSL_set_debug(con, 1);
2831         BIO_set_callback(SSL_get_rbio(con), bio_dump_callback);
2832         BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
2833     }
2834     if (s_msg) {
2835 #ifndef OPENSSL_NO_SSL_TRACE
2836         if (s_msg == 2)
2837             SSL_set_msg_callback(con, SSL_trace);
2838         else
2839 #endif
2840             SSL_set_msg_callback(con, msg_cb);
2841         SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2842     }
2843 
2844     for (;;) {
2845         if (hack) {
2846             i = SSL_accept(con);
2847 #ifndef OPENSSL_NO_SRP
2848             while (i <= 0
2849                    && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
2850                 BIO_printf(bio_s_out, "LOOKUP during accept %s\n",
2851                            srp_callback_parm.login);
2852                 srp_callback_parm.user =
2853                     SRP_VBASE_get_by_user(srp_callback_parm.vb,
2854                                           srp_callback_parm.login);
2855                 if (srp_callback_parm.user)
2856                     BIO_printf(bio_s_out, "LOOKUP done %s\n",
2857                                srp_callback_parm.user->info);
2858                 else
2859                     BIO_printf(bio_s_out, "LOOKUP not successful\n");
2860                 i = SSL_accept(con);
2861             }
2862 #endif
2863             switch (SSL_get_error(con, i)) {
2864             case SSL_ERROR_NONE:
2865                 break;
2866             case SSL_ERROR_WANT_WRITE:
2867             case SSL_ERROR_WANT_READ:
2868             case SSL_ERROR_WANT_X509_LOOKUP:
2869                 continue;
2870             case SSL_ERROR_SYSCALL:
2871             case SSL_ERROR_SSL:
2872             case SSL_ERROR_ZERO_RETURN:
2873                 ret = 1;
2874                 goto err;
2875                 /* break; */
2876             }
2877 
2878             SSL_renegotiate(con);
2879             SSL_write(con, NULL, 0);
2880         }
2881 
2882         i = BIO_gets(io, buf, bufsize - 1);
2883         if (i < 0) {            /* error */
2884             if (!BIO_should_retry(io)) {
2885                 if (!s_quiet)
2886                     ERR_print_errors(bio_err);
2887                 goto err;
2888             } else {
2889                 BIO_printf(bio_s_out, "read R BLOCK\n");
2890 #ifndef OPENSSL_NO_SRP
2891                 if (BIO_should_io_special(io)
2892                     && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
2893                     BIO_printf(bio_s_out, "LOOKUP renego during read\n");
2894                     srp_callback_parm.user =
2895                         SRP_VBASE_get_by_user(srp_callback_parm.vb,
2896                                               srp_callback_parm.login);
2897                     if (srp_callback_parm.user)
2898                         BIO_printf(bio_s_out, "LOOKUP done %s\n",
2899                                    srp_callback_parm.user->info);
2900                     else
2901                         BIO_printf(bio_s_out, "LOOKUP not successful\n");
2902                     continue;
2903                 }
2904 #endif
2905 #if defined(OPENSSL_SYS_NETWARE)
2906                 delay(1000);
2907 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
2908                 sleep(1);
2909 #endif
2910                 continue;
2911             }
2912         } else if (i == 0) {    /* end of input */
2913             ret = 1;
2914             goto end;
2915         }
2916 
2917         /* else we have data */
2918         if (((www == 1) && (strncmp("GET ", buf, 4) == 0)) ||
2919             ((www == 2) && (strncmp("GET /stats ", buf, 11) == 0))) {
2920             char *p;
2921             X509 *peer;
2922             STACK_OF(SSL_CIPHER) *sk;
2923             static const char *space = "                          ";
2924 
2925             BIO_puts(io,
2926                      "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2927             BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n");
2928             BIO_puts(io, "<pre>\n");
2929 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
2930             BIO_puts(io, "\n");
2931             for (i = 0; i < local_argc; i++) {
2932                 BIO_puts(io, local_argv[i]);
2933                 BIO_write(io, " ", 1);
2934             }
2935             BIO_puts(io, "\n");
2936 
2937             BIO_printf(io,
2938                        "Secure Renegotiation IS%s supported\n",
2939                        SSL_get_secure_renegotiation_support(con) ?
2940                        "" : " NOT");
2941 
2942             /*
2943              * The following is evil and should not really be done
2944              */
2945             BIO_printf(io, "Ciphers supported in s_server binary\n");
2946             sk = SSL_get_ciphers(con);
2947             j = sk_SSL_CIPHER_num(sk);
2948             for (i = 0; i < j; i++) {
2949                 c = sk_SSL_CIPHER_value(sk, i);
2950                 BIO_printf(io, "%-11s:%-25s",
2951                            SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
2952                 if ((((i + 1) % 2) == 0) && (i + 1 != j))
2953                     BIO_puts(io, "\n");
2954             }
2955             BIO_puts(io, "\n");
2956             p = SSL_get_shared_ciphers(con, buf, bufsize);
2957             if (p != NULL) {
2958                 BIO_printf(io,
2959                            "---\nCiphers common between both SSL end points:\n");
2960                 j = i = 0;
2961                 while (*p) {
2962                     if (*p == ':') {
2963                         BIO_write(io, space, 26 - j);
2964                         i++;
2965                         j = 0;
2966                         BIO_write(io, ((i % 3) ? " " : "\n"), 1);
2967                     } else {
2968                         BIO_write(io, p, 1);
2969                         j++;
2970                     }
2971                     p++;
2972                 }
2973                 BIO_puts(io, "\n");
2974             }
2975             ssl_print_sigalgs(io, con);
2976 #ifndef OPENSSL_NO_EC
2977             ssl_print_curves(io, con, 0);
2978 #endif
2979             BIO_printf(io, (SSL_cache_hit(con)
2980                             ? "---\nReused, " : "---\nNew, "));
2981             c = SSL_get_current_cipher(con);
2982             BIO_printf(io, "%s, Cipher is %s\n",
2983                        SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
2984             SSL_SESSION_print(io, SSL_get_session(con));
2985             BIO_printf(io, "---\n");
2986             print_stats(io, SSL_get_SSL_CTX(con));
2987             BIO_printf(io, "---\n");
2988             peer = SSL_get_peer_certificate(con);
2989             if (peer != NULL) {
2990                 BIO_printf(io, "Client certificate\n");
2991                 X509_print(io, peer);
2992                 PEM_write_bio_X509(io, peer);
2993             } else
2994                 BIO_puts(io, "no client certificate available\n");
2995             BIO_puts(io, "</BODY></HTML>\r\n\r\n");
2996             break;
2997         } else if ((www == 2 || www == 3)
2998                    && (strncmp("GET /", buf, 5) == 0)) {
2999             BIO *file;
3000             char *p, *e;
3001             static const char *text =
3002                 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
3003 
3004             /* skip the '/' */
3005             p = &(buf[5]);
3006 
3007             dot = 1;
3008             for (e = p; *e != '\0'; e++) {
3009                 if (e[0] == ' ')
3010                     break;
3011 
3012                 switch (dot) {
3013                 case 1:
3014                     dot = (e[0] == '.') ? 2 : 0;
3015                     break;
3016                 case 2:
3017                     dot = (e[0] == '.') ? 3 : 0;
3018                     break;
3019                 case 3:
3020                     dot = (e[0] == '/') ? -1 : 0;
3021                     break;
3022                 }
3023                 if (dot == 0)
3024                     dot = (e[0] == '/') ? 1 : 0;
3025             }
3026             dot = (dot == 3) || (dot == -1); /* filename contains ".."
3027                                               * component */
3028 
3029             if (*e == '\0') {
3030                 BIO_puts(io, text);
3031                 BIO_printf(io, "'%s' is an invalid file name\r\n", p);
3032                 break;
3033             }
3034             *e = '\0';
3035 
3036             if (dot) {
3037                 BIO_puts(io, text);
3038                 BIO_printf(io, "'%s' contains '..' reference\r\n", p);
3039                 break;
3040             }
3041 
3042             if (*p == '/') {
3043                 BIO_puts(io, text);
3044                 BIO_printf(io, "'%s' is an invalid path\r\n", p);
3045                 break;
3046             }
3047 #if 0
3048             /* append if a directory lookup */
3049             if (e[-1] == '/')
3050                 strcat(p, "index.html");
3051 #endif
3052 
3053             /* if a directory, do the index thang */
3054             if (app_isdir(p) > 0) {
3055 #if 0                           /* must check buffer size */
3056                 strcat(p, "/index.html");
3057 #else
3058                 BIO_puts(io, text);
3059                 BIO_printf(io, "'%s' is a directory\r\n", p);
3060                 break;
3061 #endif
3062             }
3063 
3064             if ((file = BIO_new_file(p, "r")) == NULL) {
3065                 BIO_puts(io, text);
3066                 BIO_printf(io, "Error opening '%s'\r\n", p);
3067                 ERR_print_errors(io);
3068                 break;
3069             }
3070 
3071             if (!s_quiet)
3072                 BIO_printf(bio_err, "FILE:%s\n", p);
3073 
3074             if (www == 2) {
3075                 i = strlen(p);
3076                 if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) ||
3077                     ((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) ||
3078                     ((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0)))
3079                     BIO_puts(io,
3080                              "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3081                 else
3082                     BIO_puts(io,
3083                              "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
3084             }
3085             /* send the file */
3086             for (;;) {
3087                 i = BIO_read(file, buf, bufsize);
3088                 if (i <= 0)
3089                     break;
3090 
3091 #ifdef RENEG
3092                 total_bytes += i;
3093                 fprintf(stderr, "%d\n", i);
3094                 if (total_bytes > 3 * 1024) {
3095                     total_bytes = 0;
3096                     fprintf(stderr, "RENEGOTIATE\n");
3097                     SSL_renegotiate(con);
3098                 }
3099 #endif
3100 
3101                 for (j = 0; j < i;) {
3102 #ifdef RENEG
3103                     {
3104                         static count = 0;
3105                         if (++count == 13) {
3106                             SSL_renegotiate(con);
3107                         }
3108                     }
3109 #endif
3110                     k = BIO_write(io, &(buf[j]), i - j);
3111                     if (k <= 0) {
3112                         if (!BIO_should_retry(io))
3113                             goto write_error;
3114                         else {
3115                             BIO_printf(bio_s_out, "rwrite W BLOCK\n");
3116                         }
3117                     } else {
3118                         j += k;
3119                     }
3120                 }
3121             }
3122  write_error:
3123             BIO_free(file);
3124             break;
3125         }
3126     }
3127 
3128     for (;;) {
3129         i = (int)BIO_flush(io);
3130         if (i <= 0) {
3131             if (!BIO_should_retry(io))
3132                 break;
3133         } else
3134             break;
3135     }
3136  end:
3137 #if 1
3138     /* make sure we re-use sessions */
3139     SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
3140 #else
3141     /* This kills performance */
3142     /*
3143      * SSL_shutdown(con); A shutdown gets sent in the BIO_free_all(io)
3144      * procession
3145      */
3146 #endif
3147 
3148  err:
3149 
3150     if (ret >= 0)
3151         BIO_printf(bio_s_out, "ACCEPT\n");
3152 
3153     if (buf != NULL)
3154         OPENSSL_free(buf);
3155     if (io != NULL)
3156         BIO_free_all(io);
3157 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
3158     return (ret);
3159 }
3160 
3161 static int rev_body(char *hostname, int s, int stype, unsigned char *context)
3162 {
3163     char *buf = NULL;
3164     int i;
3165     int ret = 1;
3166     SSL *con;
3167     BIO *io, *ssl_bio, *sbio;
3168 #ifndef OPENSSL_NO_KRB5
3169     KSSL_CTX *kctx;
3170 #endif
3171 
3172     buf = OPENSSL_malloc(bufsize);
3173     if (buf == NULL)
3174         return (0);
3175     io = BIO_new(BIO_f_buffer());
3176     ssl_bio = BIO_new(BIO_f_ssl());
3177     if ((io == NULL) || (ssl_bio == NULL))
3178         goto err;
3179 
3180     /* lets make the output buffer a reasonable size */
3181     if (!BIO_set_write_buffer_size(io, bufsize))
3182         goto err;
3183 
3184     if ((con = SSL_new(ctx)) == NULL)
3185         goto err;
3186 #ifndef OPENSSL_NO_TLSEXT
3187     if (s_tlsextdebug) {
3188         SSL_set_tlsext_debug_callback(con, tlsext_cb);
3189         SSL_set_tlsext_debug_arg(con, bio_s_out);
3190     }
3191 #endif
3192 #ifndef OPENSSL_NO_KRB5
3193     if ((kctx = kssl_ctx_new()) != NULL) {
3194         kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
3195         kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
3196     }
3197 #endif                          /* OPENSSL_NO_KRB5 */
3198     if (context)
3199         SSL_set_session_id_context(con, context, strlen((char *)context));
3200 
3201     sbio = BIO_new_socket(s, BIO_NOCLOSE);
3202     SSL_set_bio(con, sbio, sbio);
3203     SSL_set_accept_state(con);
3204 
3205     BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
3206     BIO_push(io, ssl_bio);
3207 #ifdef CHARSET_EBCDIC
3208     io = BIO_push(BIO_new(BIO_f_ebcdic_filter()), io);
3209 #endif
3210 
3211     if (s_debug) {
3212         SSL_set_debug(con, 1);
3213         BIO_set_callback(SSL_get_rbio(con), bio_dump_callback);
3214         BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
3215     }
3216     if (s_msg) {
3217 #ifndef OPENSSL_NO_SSL_TRACE
3218         if (s_msg == 2)
3219             SSL_set_msg_callback(con, SSL_trace);
3220         else
3221 #endif
3222             SSL_set_msg_callback(con, msg_cb);
3223         SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3224     }
3225 
3226     for (;;) {
3227         i = BIO_do_handshake(io);
3228         if (i > 0)
3229             break;
3230         if (!BIO_should_retry(io)) {
3231             BIO_puts(bio_err, "CONNECTION FAILURE\n");
3232             ERR_print_errors(bio_err);
3233             goto end;
3234         }
3235 #ifndef OPENSSL_NO_SRP
3236         if (BIO_should_io_special(io)
3237             && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3238             BIO_printf(bio_s_out, "LOOKUP renego during accept\n");
3239             srp_callback_parm.user =
3240                 SRP_VBASE_get_by_user(srp_callback_parm.vb,
3241                                       srp_callback_parm.login);
3242             if (srp_callback_parm.user)
3243                 BIO_printf(bio_s_out, "LOOKUP done %s\n",
3244                            srp_callback_parm.user->info);
3245             else
3246                 BIO_printf(bio_s_out, "LOOKUP not successful\n");
3247             continue;
3248         }
3249 #endif
3250     }
3251     BIO_printf(bio_err, "CONNECTION ESTABLISHED\n");
3252     print_ssl_summary(bio_err, con);
3253 
3254     for (;;) {
3255         i = BIO_gets(io, buf, bufsize - 1);
3256         if (i < 0) {            /* error */
3257             if (!BIO_should_retry(io)) {
3258                 if (!s_quiet)
3259                     ERR_print_errors(bio_err);
3260                 goto err;
3261             } else {
3262                 BIO_printf(bio_s_out, "read R BLOCK\n");
3263 #ifndef OPENSSL_NO_SRP
3264                 if (BIO_should_io_special(io)
3265                     && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
3266                     BIO_printf(bio_s_out, "LOOKUP renego during read\n");
3267                     srp_callback_parm.user =
3268                         SRP_VBASE_get_by_user(srp_callback_parm.vb,
3269                                               srp_callback_parm.login);
3270                     if (srp_callback_parm.user)
3271                         BIO_printf(bio_s_out, "LOOKUP done %s\n",
3272                                    srp_callback_parm.user->info);
3273                     else
3274                         BIO_printf(bio_s_out, "LOOKUP not successful\n");
3275                     continue;
3276                 }
3277 #endif
3278 #if defined(OPENSSL_SYS_NETWARE)
3279                 delay(1000);
3280 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
3281                 sleep(1);
3282 #endif
3283                 continue;
3284             }
3285         } else if (i == 0) {    /* end of input */
3286             ret = 1;
3287             BIO_printf(bio_err, "CONNECTION CLOSED\n");
3288             goto end;
3289         } else {
3290             char *p = buf + i - 1;
3291             while (i && (*p == '\n' || *p == '\r')) {
3292                 p--;
3293                 i--;
3294             }
3295             if (!s_ign_eof && i == 5 && !strncmp(buf, "CLOSE", 5)) {
3296                 ret = 1;
3297                 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3298                 goto end;
3299             }
3300             BUF_reverse((unsigned char *)buf, NULL, i);
3301             buf[i] = '\n';
3302             BIO_write(io, buf, i + 1);
3303             for (;;) {
3304                 i = BIO_flush(io);
3305                 if (i > 0)
3306                     break;
3307                 if (!BIO_should_retry(io))
3308                     goto end;
3309             }
3310         }
3311     }
3312  end:
3313     /* make sure we re-use sessions */
3314     SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
3315 
3316  err:
3317 
3318     if (buf != NULL)
3319         OPENSSL_free(buf);
3320     if (io != NULL)
3321         BIO_free_all(io);
3322     return (ret);
3323 }
3324 
3325 #ifndef OPENSSL_NO_RSA
3326 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
3327 {
3328     BIGNUM *bn = NULL;
3329     static RSA *rsa_tmp = NULL;
3330 
3331     if (!rsa_tmp && ((bn = BN_new()) == NULL))
3332         BIO_printf(bio_err, "Allocation error in generating RSA key\n");
3333     if (!rsa_tmp && bn) {
3334         if (!s_quiet) {
3335             BIO_printf(bio_err, "Generating temp (%d bit) RSA key...",
3336                        keylength);
3337             (void)BIO_flush(bio_err);
3338         }
3339         if (!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
3340             !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL)) {
3341             if (rsa_tmp)
3342                 RSA_free(rsa_tmp);
3343             rsa_tmp = NULL;
3344         }
3345         if (!s_quiet) {
3346             BIO_printf(bio_err, "\n");
3347             (void)BIO_flush(bio_err);
3348         }
3349         BN_free(bn);
3350     }
3351     return (rsa_tmp);
3352 }
3353 #endif
3354 
3355 #define MAX_SESSION_ID_ATTEMPTS 10
3356 static int generate_session_id(const SSL *ssl, unsigned char *id,
3357                                unsigned int *id_len)
3358 {
3359     unsigned int count = 0;
3360     do {
3361         if (RAND_pseudo_bytes(id, *id_len) < 0)
3362             return 0;
3363         /*
3364          * Prefix the session_id with the required prefix. NB: If our prefix
3365          * is too long, clip it - but there will be worse effects anyway, eg.
3366          * the server could only possibly create 1 session ID (ie. the
3367          * prefix!) so all future session negotiations will fail due to
3368          * conflicts.
3369          */
3370         memcpy(id, session_id_prefix,
3371                (strlen(session_id_prefix) < *id_len) ?
3372                strlen(session_id_prefix) : *id_len);
3373     }
3374     while (SSL_has_matching_session_id(ssl, id, *id_len) &&
3375            (++count < MAX_SESSION_ID_ATTEMPTS));
3376     if (count >= MAX_SESSION_ID_ATTEMPTS)
3377         return 0;
3378     return 1;
3379 }
3380 
3381 /*
3382  * By default s_server uses an in-memory cache which caches SSL_SESSION
3383  * structures without any serialisation. This hides some bugs which only
3384  * become apparent in deployed servers. By implementing a basic external
3385  * session cache some issues can be debugged using s_server.
3386  */
3387 
3388 typedef struct simple_ssl_session_st {
3389     unsigned char *id;
3390     unsigned int idlen;
3391     unsigned char *der;
3392     int derlen;
3393     struct simple_ssl_session_st *next;
3394 } simple_ssl_session;
3395 
3396 static simple_ssl_session *first = NULL;
3397 
3398 static int add_session(SSL *ssl, SSL_SESSION *session)
3399 {
3400     simple_ssl_session *sess;
3401     unsigned char *p;
3402 
3403     sess = OPENSSL_malloc(sizeof(simple_ssl_session));
3404     if (!sess) {
3405         BIO_printf(bio_err, "Out of memory adding session to external cache\n");
3406         return 0;
3407     }
3408 
3409     SSL_SESSION_get_id(session, &sess->idlen);
3410     sess->derlen = i2d_SSL_SESSION(session, NULL);
3411 
3412     sess->id = BUF_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen);
3413 
3414     sess->der = OPENSSL_malloc(sess->derlen);
3415     if (!sess->id || !sess->der) {
3416         BIO_printf(bio_err, "Out of memory adding session to external cache\n");
3417 
3418         if (sess->id)
3419             OPENSSL_free(sess->id);
3420         if (sess->der)
3421             OPENSSL_free(sess->der);
3422         OPENSSL_free(sess);
3423         return 0;
3424     }
3425     p = sess->der;
3426     i2d_SSL_SESSION(session, &p);
3427 
3428     sess->next = first;
3429     first = sess;
3430     BIO_printf(bio_err, "New session added to external cache\n");
3431     return 0;
3432 }
3433 
3434 static SSL_SESSION *get_session(SSL *ssl, unsigned char *id, int idlen,
3435                                 int *do_copy)
3436 {
3437     simple_ssl_session *sess;
3438     *do_copy = 0;
3439     for (sess = first; sess; sess = sess->next) {
3440         if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen)) {
3441             const unsigned char *p = sess->der;
3442             BIO_printf(bio_err, "Lookup session: cache hit\n");
3443             return d2i_SSL_SESSION(NULL, &p, sess->derlen);
3444         }
3445     }
3446     BIO_printf(bio_err, "Lookup session: cache miss\n");
3447     return NULL;
3448 }
3449 
3450 static void del_session(SSL_CTX *sctx, SSL_SESSION *session)
3451 {
3452     simple_ssl_session *sess, *prev = NULL;
3453     const unsigned char *id;
3454     unsigned int idlen;
3455     id = SSL_SESSION_get_id(session, &idlen);
3456     for (sess = first; sess; sess = sess->next) {
3457         if (idlen == sess->idlen && !memcmp(sess->id, id, idlen)) {
3458             if (prev)
3459                 prev->next = sess->next;
3460             else
3461                 first = sess->next;
3462             OPENSSL_free(sess->id);
3463             OPENSSL_free(sess->der);
3464             OPENSSL_free(sess);
3465             return;
3466         }
3467         prev = sess;
3468     }
3469 }
3470 
3471 static void init_session_cache_ctx(SSL_CTX *sctx)
3472 {
3473     SSL_CTX_set_session_cache_mode(sctx,
3474                                    SSL_SESS_CACHE_NO_INTERNAL |
3475                                    SSL_SESS_CACHE_SERVER);
3476     SSL_CTX_sess_set_new_cb(sctx, add_session);
3477     SSL_CTX_sess_set_get_cb(sctx, get_session);
3478     SSL_CTX_sess_set_remove_cb(sctx, del_session);
3479 }
3480 
3481 static void free_sessions(void)
3482 {
3483     simple_ssl_session *sess, *tsess;
3484     for (sess = first; sess;) {
3485         OPENSSL_free(sess->id);
3486         OPENSSL_free(sess->der);
3487         tsess = sess;
3488         sess = sess->next;
3489         OPENSSL_free(tsess);
3490     }
3491     first = NULL;
3492 }
3493