Document "openssl s_server" -crl_check* options
[openssl.git] / apps / s_server.c
1 /* apps/s_server.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3  * All rights reserved.
4  *
5  * This package is an SSL implementation written
6  * by Eric Young (eay@cryptsoft.com).
7  * The implementation was written so as to conform with Netscapes SSL.
8  * 
9  * This library is free for commercial and non-commercial use as long as
10  * the following conditions are aheared to.  The following conditions
11  * apply to all code found in this distribution, be it the RC4, RSA,
12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13  * included with this distribution is covered by the same copyright terms
14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15  * 
16  * Copyright remains Eric Young's, and as such any Copyright notices in
17  * the code are not to be removed.
18  * If this package is used in a product, Eric Young should be given attribution
19  * as the author of the parts of the library used.
20  * This can be in the form of a textual message at program startup or
21  * in documentation (online or textual) provided with the package.
22  * 
23  * Redistribution and use in source and binary forms, with or without
24  * modification, are permitted provided that the following conditions
25  * are met:
26  * 1. Redistributions of source code must retain the copyright
27  *    notice, this list of conditions and the following disclaimer.
28  * 2. Redistributions in binary form must reproduce the above copyright
29  *    notice, this list of conditions and the following disclaimer in the
30  *    documentation and/or other materials provided with the distribution.
31  * 3. All advertising materials mentioning features or use of this software
32  *    must display the following acknowledgement:
33  *    "This product includes cryptographic software written by
34  *     Eric Young (eay@cryptsoft.com)"
35  *    The word 'cryptographic' can be left out if the rouines from the library
36  *    being used are not cryptographic related :-).
37  * 4. If you include any Windows specific code (or a derivative thereof) from 
38  *    the apps directory (application code) you must include an acknowledgement:
39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40  * 
41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51  * SUCH DAMAGE.
52  * 
53  * The licence and distribution terms for any publically available version or
54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
55  * copied and put under another distribution licence
56  * [including the GNU Public Licence.]
57  */
58 /* ====================================================================
59  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
60  *
61  * Redistribution and use in source and binary forms, with or without
62  * modification, are permitted provided that the following conditions
63  * are met:
64  *
65  * 1. Redistributions of source code must retain the above copyright
66  *    notice, this list of conditions and the following disclaimer. 
67  *
68  * 2. Redistributions in binary form must reproduce the above copyright
69  *    notice, this list of conditions and the following disclaimer in
70  *    the documentation and/or other materials provided with the
71  *    distribution.
72  *
73  * 3. All advertising materials mentioning features or use of this
74  *    software must display the following acknowledgment:
75  *    "This product includes software developed by the OpenSSL Project
76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77  *
78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79  *    endorse or promote products derived from this software without
80  *    prior written permission. For written permission, please contact
81  *    openssl-core@openssl.org.
82  *
83  * 5. Products derived from this software may not be called "OpenSSL"
84  *    nor may "OpenSSL" appear in their names without prior written
85  *    permission of the OpenSSL Project.
86  *
87  * 6. Redistributions of any form whatsoever must retain the following
88  *    acknowledgment:
89  *    "This product includes software developed by the OpenSSL Project
90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91  *
92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103  * OF THE POSSIBILITY OF SUCH DAMAGE.
104  * ====================================================================
105  *
106  * This product includes cryptographic software written by Eric Young
107  * (eay@cryptsoft.com).  This product includes software written by Tim
108  * Hudson (tjh@cryptsoft.com).
109  *
110  */
111 /* ====================================================================
112  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
113  * ECC cipher suite support in OpenSSL originally developed by 
114  * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
115  */
116 /* ====================================================================
117  * Copyright 2005 Nokia. All rights reserved.
118  *
119  * The portions of the attached software ("Contribution") is developed by
120  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
121  * license.
122  *
123  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
124  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
125  * support (see RFC 4279) to OpenSSL.
126  *
127  * No patent licenses or other rights except those expressly stated in
128  * the OpenSSL open source license shall be deemed granted or received
129  * expressly, by implication, estoppel, or otherwise.
130  *
131  * No assurances are provided by Nokia that the Contribution does not
132  * infringe the patent or other intellectual property rights of any third
133  * party or that the license provides you with all the necessary rights
134  * to make use of the Contribution.
135  *
136  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
137  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
138  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
139  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
140  * OTHERWISE.
141  */
142
143 /* Until the key-gen callbacks are modified to use newer prototypes, we allow
144  * deprecated functions for openssl-internal code */
145 #ifdef OPENSSL_NO_DEPRECATED
146 #undef OPENSSL_NO_DEPRECATED
147 #endif
148
149 #include <assert.h>
150 #include <ctype.h>
151 #include <stdio.h>
152 #include <stdlib.h>
153 #include <string.h>
154
155 #include <openssl/e_os2.h>
156 #ifdef OPENSSL_NO_STDIO
157 #define APPS_WIN16
158 #endif
159
160 #if !defined(OPENSSL_SYS_NETWARE)  /* conflicts with winsock2 stuff on netware */
161 #include <sys/types.h>
162 #endif
163
164 /* With IPv6, it looks like Digital has mixed up the proper order of
165    recursive header file inclusion, resulting in the compiler complaining
166    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
167    is needed to have fileno() declared correctly...  So let's define u_int */
168 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
169 #define __U_INT
170 typedef unsigned int u_int;
171 #endif
172
173 #include <openssl/lhash.h>
174 #include <openssl/bn.h>
175 #define USE_SOCKETS
176 #include "apps.h"
177 #include <openssl/err.h>
178 #include <openssl/pem.h>
179 #include <openssl/x509.h>
180 #include <openssl/ssl.h>
181 #include <openssl/rand.h>
182 #include <openssl/ocsp.h>
183 #ifndef OPENSSL_NO_DH
184 #include <openssl/dh.h>
185 #endif
186 #ifndef OPENSSL_NO_RSA
187 #include <openssl/rsa.h>
188 #endif
189 #include "s_apps.h"
190 #include "timeouts.h"
191
192 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
193 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
194 #undef FIONBIO
195 #endif
196
197 #if defined(OPENSSL_SYS_BEOS_R5)
198 #include <fcntl.h>
199 #endif
200
201 #ifndef OPENSSL_NO_RSA
202 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
203 #endif
204 static int sv_body(char *hostname, int s, unsigned char *context);
205 static int www_body(char *hostname, int s, unsigned char *context);
206 static void close_accept_socket(void );
207 static void sv_usage(void);
208 static int init_ssl_connection(SSL *s);
209 static void print_stats(BIO *bp,SSL_CTX *ctx);
210 static int generate_session_id(const SSL *ssl, unsigned char *id,
211                                 unsigned int *id_len);
212 #ifndef OPENSSL_NO_DH
213 static DH *load_dh_param(const char *dhfile);
214 static DH *get_dh512(void);
215 #endif
216
217 #ifdef MONOLITH
218 static void s_server_init(void);
219 #endif
220
221 #ifndef OPENSSL_NO_DH
222 static unsigned char dh512_p[]={
223         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
224         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
225         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
226         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
227         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
228         0x47,0x74,0xE8,0x33,
229         };
230 static unsigned char dh512_g[]={
231         0x02,
232         };
233
234 static DH *get_dh512(void)
235         {
236         DH *dh=NULL;
237
238         if ((dh=DH_new()) == NULL) return(NULL);
239         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
240         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
241         if ((dh->p == NULL) || (dh->g == NULL))
242                 return(NULL);
243         return(dh);
244         }
245 #endif
246
247
248 /* static int load_CA(SSL_CTX *ctx, char *file);*/
249
250 #undef BUFSIZZ
251 #define BUFSIZZ 16*1024
252 static int bufsize=BUFSIZZ;
253 static int accept_socket= -1;
254
255 #define TEST_CERT       "server.pem"
256 #ifndef OPENSSL_NO_TLSEXT
257 #define TEST_CERT2      "server2.pem"
258 #endif
259 #undef PROG
260 #define PROG            s_server_main
261
262 extern int verify_depth, verify_return_error;
263
264 static char *cipher=NULL;
265 static int s_server_verify=SSL_VERIFY_NONE;
266 static int s_server_session_id_context = 1; /* anything will do */
267 static const char *s_cert_file=TEST_CERT,*s_key_file=NULL;
268 #ifndef OPENSSL_NO_TLSEXT
269 static const char *s_cert_file2=TEST_CERT2,*s_key_file2=NULL;
270 #endif
271 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
272 #ifdef FIONBIO
273 static int s_nbio=0;
274 #endif
275 static int s_nbio_test=0;
276 int s_crlf=0;
277 static SSL_CTX *ctx=NULL;
278 #ifndef OPENSSL_NO_TLSEXT
279 static SSL_CTX *ctx2=NULL;
280 #endif
281 static int www=0;
282
283 static BIO *bio_s_out=NULL;
284 static int s_debug=0;
285 #ifndef OPENSSL_NO_TLSEXT
286 static int s_tlsextdebug=0;
287 static int s_tlsextstatus=0;
288 static int cert_status_cb(SSL *s, void *arg);
289 #endif
290 static int s_msg=0;
291 static int s_quiet=0;
292
293 static int hack=0;
294 #ifndef OPENSSL_NO_ENGINE
295 static char *engine_id=NULL;
296 #endif
297 static const char *session_id_prefix=NULL;
298
299 static int enable_timeouts = 0;
300 static long socket_mtu;
301 static int cert_chain = 0;
302
303 #ifndef OPENSSL_NO_PSK
304 static char *psk_identity="Client_identity";
305 static char *psk_key=NULL; /* by default PSK is not used */
306
307 static unsigned int psk_server_cb(SSL *ssl, const char *identity,
308         unsigned char *psk, unsigned int max_psk_len)
309         {
310         unsigned int psk_len = 0;
311         int ret;
312         BIGNUM *bn = NULL;
313
314         if (s_debug)
315                 BIO_printf(bio_s_out,"psk_server_cb\n");
316         if (!identity)
317                 {
318                 BIO_printf(bio_err,"Error: client did not send PSK identity\n");
319                 goto out_err;
320                 }
321         if (s_debug)
322                 BIO_printf(bio_s_out,"identity_len=%d identity=%s\n",
323                         identity ? (int)strlen(identity) : 0, identity);
324
325         /* here we could lookup the given identity e.g. from a database */
326         if (strcmp(identity, psk_identity) != 0)
327                 {
328                 BIO_printf(bio_s_out, "PSK error: client identity not found\n");
329                 goto out_err;
330                 }
331         if (s_debug)
332                 BIO_printf(bio_s_out, "PSK client identity found\n");
333
334         /* convert the PSK key to binary */
335         ret = BN_hex2bn(&bn, psk_key);
336         if (!ret)
337                 {
338                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
339                 if (bn)
340                         BN_free(bn);
341                 return 0;
342                 }
343         if (BN_num_bytes(bn) > (int)max_psk_len)
344                 {
345                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
346                         max_psk_len, BN_num_bytes(bn));
347                 BN_free(bn);
348                 return 0;
349                 }
350
351         ret = BN_bn2bin(bn, psk);
352         BN_free(bn);
353
354         if (ret < 0)
355                 goto out_err;
356         psk_len = (unsigned int)ret;
357
358         if (s_debug)
359                 BIO_printf(bio_s_out, "fetched PSK len=%d\n", psk_len);
360         return psk_len;
361  out_err:
362         if (s_debug)
363                 BIO_printf(bio_err, "Error in PSK server callback\n");
364         return 0;
365         }
366 #endif
367
368 #ifdef MONOLITH
369 static void s_server_init(void)
370         {
371         accept_socket=-1;
372         cipher=NULL;
373         s_server_verify=SSL_VERIFY_NONE;
374         s_dcert_file=NULL;
375         s_dkey_file=NULL;
376         s_cert_file=TEST_CERT;
377         s_key_file=NULL;
378 #ifndef OPENSSL_NO_TLSEXT
379         s_cert_file2=TEST_CERT2;
380         s_key_file2=NULL;
381         ctx2=NULL;
382 #endif
383 #ifdef FIONBIO
384         s_nbio=0;
385 #endif
386         s_nbio_test=0;
387         ctx=NULL;
388         www=0;
389
390         bio_s_out=NULL;
391         s_debug=0;
392         s_msg=0;
393         s_quiet=0;
394         hack=0;
395 #ifndef OPENSSL_NO_ENGINE
396         engine_id=NULL;
397 #endif
398         }
399 #endif
400
401 static void sv_usage(void)
402         {
403         BIO_printf(bio_err,"usage: s_server [args ...]\n");
404         BIO_printf(bio_err,"\n");
405         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
406         BIO_printf(bio_err," -context arg  - set session ID context\n");
407         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
408         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
409         BIO_printf(bio_err," -cert arg     - certificate file to use\n");
410         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
411         BIO_printf(bio_err," -crl_check    - check the peer certificate has not been revoked by its CA.\n" \
412                            "                 The CRL(s) are appended to the certificate file\n");
413         BIO_printf(bio_err," -crl_check_all - check the peer certificate has not been revoked by its CA\n" \
414                            "                 or any other CRL in the CA chain. CRL(s) are appened to the\n" \
415                            "                 the certificate file.\n");
416         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
417         BIO_printf(bio_err," -key arg      - Private Key file to use, in cert file if\n");
418         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
419         BIO_printf(bio_err," -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
420         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
421         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
422         BIO_printf(bio_err," -dcertform x  - second certificate format (PEM or DER) PEM default\n");
423         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
424         BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
425         BIO_printf(bio_err," -dpass arg    - second private key file pass phrase source\n");
426         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
427         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
428 #ifndef OPENSSL_NO_ECDH
429         BIO_printf(bio_err," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
430                            "                 Use \"openssl ecparam -list_curves\" for all names\n" \
431                            "                 (default is nistp256).\n");
432 #endif
433 #ifdef FIONBIO
434         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
435 #endif
436         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
437         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
438         BIO_printf(bio_err," -debug        - Print more output\n");
439         BIO_printf(bio_err," -msg          - Show protocol messages\n");
440         BIO_printf(bio_err," -state        - Print the SSL states\n");
441         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
442         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
443         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
444         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
445         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
446         BIO_printf(bio_err," -quiet        - No server output\n");
447         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
448 #ifndef OPENSSL_NO_PSK
449         BIO_printf(bio_err," -psk_hint arg - PSK identity hint to use\n");
450         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
451 #endif
452         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
453         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
454         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
455         BIO_printf(bio_err," -dtls1        - Just talk DTLSv1\n");
456         BIO_printf(bio_err," -timeout      - Enable timeouts\n");
457         BIO_printf(bio_err," -mtu          - Set MTU\n");
458         BIO_printf(bio_err," -chain        - Read a certificate chain\n");
459         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
460         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
461         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
462 #ifndef OPENSSL_NO_DH
463         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
464 #endif
465 #ifndef OPENSSL_NO_ECDH
466         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
467 #endif
468         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
469         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
470         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
471         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
472         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
473 #ifndef OPENSSL_NO_ENGINE
474         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
475 #endif
476         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
477         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
478 #ifndef OPENSSL_NO_TLSEXT
479         BIO_printf(bio_err," -servername host - servername for HostName TLS extension\n");
480         BIO_printf(bio_err," -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
481         BIO_printf(bio_err," -cert2 arg    - certificate file to use for servername\n");
482         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT2);
483         BIO_printf(bio_err," -key2 arg     - Private Key file to use for servername, in cert file if\n");
484         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT2);
485         BIO_printf(bio_err," -tlsextdebug  - hex dump of all TLS extensions received\n");
486         BIO_printf(bio_err," -no_ticket    - disable use of RFC4507bis session tickets\n");
487 #endif
488         }
489
490 static int local_argc=0;
491 static char **local_argv;
492
493 #ifdef CHARSET_EBCDIC
494 static int ebcdic_new(BIO *bi);
495 static int ebcdic_free(BIO *a);
496 static int ebcdic_read(BIO *b, char *out, int outl);
497 static int ebcdic_write(BIO *b, const char *in, int inl);
498 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
499 static int ebcdic_gets(BIO *bp, char *buf, int size);
500 static int ebcdic_puts(BIO *bp, const char *str);
501
502 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
503 static BIO_METHOD methods_ebcdic=
504         {
505         BIO_TYPE_EBCDIC_FILTER,
506         "EBCDIC/ASCII filter",
507         ebcdic_write,
508         ebcdic_read,
509         ebcdic_puts,
510         ebcdic_gets,
511         ebcdic_ctrl,
512         ebcdic_new,
513         ebcdic_free,
514         };
515
516 typedef struct
517 {
518         size_t  alloced;
519         char    buff[1];
520 } EBCDIC_OUTBUFF;
521
522 BIO_METHOD *BIO_f_ebcdic_filter()
523 {
524         return(&methods_ebcdic);
525 }
526
527 static int ebcdic_new(BIO *bi)
528 {
529         EBCDIC_OUTBUFF *wbuf;
530
531         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
532         wbuf->alloced = 1024;
533         wbuf->buff[0] = '\0';
534
535         bi->ptr=(char *)wbuf;
536         bi->init=1;
537         bi->flags=0;
538         return(1);
539 }
540
541 static int ebcdic_free(BIO *a)
542 {
543         if (a == NULL) return(0);
544         if (a->ptr != NULL)
545                 OPENSSL_free(a->ptr);
546         a->ptr=NULL;
547         a->init=0;
548         a->flags=0;
549         return(1);
550 }
551         
552 static int ebcdic_read(BIO *b, char *out, int outl)
553 {
554         int ret=0;
555
556         if (out == NULL || outl == 0) return(0);
557         if (b->next_bio == NULL) return(0);
558
559         ret=BIO_read(b->next_bio,out,outl);
560         if (ret > 0)
561                 ascii2ebcdic(out,out,ret);
562         return(ret);
563 }
564
565 static int ebcdic_write(BIO *b, const char *in, int inl)
566 {
567         EBCDIC_OUTBUFF *wbuf;
568         int ret=0;
569         int num;
570         unsigned char n;
571
572         if ((in == NULL) || (inl <= 0)) return(0);
573         if (b->next_bio == NULL) return(0);
574
575         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
576
577         if (inl > (num = wbuf->alloced))
578         {
579                 num = num + num;  /* double the size */
580                 if (num < inl)
581                         num = inl;
582                 OPENSSL_free(wbuf);
583                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
584
585                 wbuf->alloced = num;
586                 wbuf->buff[0] = '\0';
587
588                 b->ptr=(char *)wbuf;
589         }
590
591         ebcdic2ascii(wbuf->buff, in, inl);
592
593         ret=BIO_write(b->next_bio, wbuf->buff, inl);
594
595         return(ret);
596 }
597
598 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
599 {
600         long ret;
601
602         if (b->next_bio == NULL) return(0);
603         switch (cmd)
604         {
605         case BIO_CTRL_DUP:
606                 ret=0L;
607                 break;
608         default:
609                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
610                 break;
611         }
612         return(ret);
613 }
614
615 static int ebcdic_gets(BIO *bp, char *buf, int size)
616 {
617         int i, ret=0;
618         if (bp->next_bio == NULL) return(0);
619 /*      return(BIO_gets(bp->next_bio,buf,size));*/
620         for (i=0; i<size-1; ++i)
621         {
622                 ret = ebcdic_read(bp,&buf[i],1);
623                 if (ret <= 0)
624                         break;
625                 else if (buf[i] == '\n')
626                 {
627                         ++i;
628                         break;
629                 }
630         }
631         if (i < size)
632                 buf[i] = '\0';
633         return (ret < 0 && i == 0) ? ret : i;
634 }
635
636 static int ebcdic_puts(BIO *bp, const char *str)
637 {
638         if (bp->next_bio == NULL) return(0);
639         return ebcdic_write(bp, str, strlen(str));
640 }
641 #endif
642
643 #ifndef OPENSSL_NO_TLSEXT
644
645 /* This is a context that we pass to callbacks */
646 typedef struct tlsextctx_st {
647    char * servername;
648    BIO * biodebug;
649    int extension_error;
650 } tlsextctx;
651
652
653 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
654         {
655         tlsextctx * p = (tlsextctx *) arg;
656         const char * servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
657         if (servername && p->biodebug) 
658                 BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
659         
660         if (!p->servername)
661                 return SSL_TLSEXT_ERR_NOACK;
662         
663         if (servername)
664                 {
665                 if (strcmp(servername,p->servername)) 
666                         return p->extension_error;
667                 if (ctx2)
668                         {
669                         BIO_printf(p->biodebug,"Swiching server context.\n");
670                         SSL_set_SSL_CTX(s,ctx2);
671                         }     
672                 }
673         return SSL_TLSEXT_ERR_OK;
674 }
675
676 /* Structure passed to cert status callback */
677
678 typedef struct tlsextstatusctx_st {
679    /* Default responder to use */
680    char *host, *path, *port;
681    int use_ssl;
682    int timeout;
683    BIO *err;
684    int verbose;
685 } tlsextstatusctx;
686
687 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0};
688
689 /* Certificate Status callback. This is called when a client includes a
690  * certificate status request extension.
691  *
692  * This is a simplified version. It examines certificates each time and
693  * makes one OCSP responder query for each request.
694  *
695  * A full version would store details such as the OCSP certificate IDs and
696  * minimise the number of OCSP responses by caching them until they were
697  * considered "expired".
698  */
699
700 static int cert_status_cb(SSL *s, void *arg)
701         {
702         tlsextstatusctx *srctx = arg;
703         BIO *err = srctx->err;
704         char *host, *port, *path;
705         int use_ssl;
706         unsigned char *rspder = NULL;
707         int rspderlen;
708         STACK *aia = NULL;
709         X509 *x = NULL;
710         X509_STORE_CTX inctx;
711         X509_OBJECT obj;
712         OCSP_REQUEST *req = NULL;
713         OCSP_RESPONSE *resp = NULL;
714         OCSP_CERTID *id = NULL;
715         STACK_OF(X509_EXTENSION) *exts;
716         int ret = SSL_TLSEXT_ERR_NOACK;
717         int i;
718 #if 0
719 STACK_OF(OCSP_RESPID) *ids;
720 SSL_get_tlsext_status_ids(s, &ids);
721 BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
722 #endif
723         if (srctx->verbose)
724                 BIO_puts(err, "cert_status: callback called\n");
725         /* Build up OCSP query from server certificate */
726         x = SSL_get_certificate(s);
727         aia = X509_get1_ocsp(x);
728         if (aia)
729                 {
730                 if (!OCSP_parse_url(sk_value(aia, 0),
731                         &host, &port, &path, &use_ssl))
732                         {
733                         BIO_puts(err, "cert_status: can't parse AIA URL\n");
734                         goto err;
735                         }
736                 if (srctx->verbose)
737                         BIO_printf(err, "cert_status: AIA URL: %s\n",
738                                         sk_value(aia, 0));
739                 }
740         else
741                 {
742                 if (!srctx->host)
743                         {
744                         BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
745                         goto done;
746                         }
747                 host = srctx->host;
748                 path = srctx->path;
749                 port = srctx->port;
750                 use_ssl = srctx->use_ssl;
751                 }
752                 
753         if (!X509_STORE_CTX_init(&inctx,
754                                 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
755                                 NULL, NULL))
756                 goto err;
757         if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
758                                 X509_get_issuer_name(x),&obj) <= 0)
759                 {
760                 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
761                 X509_STORE_CTX_cleanup(&inctx);
762                 goto done;
763                 }
764         req = OCSP_REQUEST_new();
765         if (!req)
766                 goto err;
767         id = OCSP_cert_to_id(NULL, x, obj.data.x509);
768         X509_free(obj.data.x509);
769         X509_STORE_CTX_cleanup(&inctx);
770         if (!id)
771                 goto err;
772         if (!OCSP_request_add0_id(req, id))
773                 goto err;
774         id = NULL;
775         /* Add any extensions to the request */
776         SSL_get_tlsext_status_exts(s, &exts);
777         for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
778                 {
779                 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
780                 if (!OCSP_REQUEST_add_ext(req, ext, -1))
781                         goto err;
782                 }
783         resp = process_responder(err, req, host, path, port, use_ssl,
784                                         srctx->timeout);
785         if (!resp)
786                 {
787                 BIO_puts(err, "cert_status: error querying responder\n");
788                 goto done;
789                 }
790         rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
791         if (rspderlen <= 0)
792                 goto err;
793         SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
794         if (srctx->verbose)
795                 {
796                 BIO_puts(err, "cert_status: ocsp response sent:\n");
797                 OCSP_RESPONSE_print(err, resp, 2);
798                 }
799         ret = SSL_TLSEXT_ERR_OK;
800         done:
801         if (ret != SSL_TLSEXT_ERR_OK)
802                 ERR_print_errors(err);
803         if (aia)
804                 {
805                 OPENSSL_free(host);
806                 OPENSSL_free(path);
807                 OPENSSL_free(port);
808                 X509_email_free(aia);
809                 }
810         if (id)
811                 OCSP_CERTID_free(id);
812         if (req)
813                 OCSP_REQUEST_free(req);
814         if (resp)
815                 OCSP_RESPONSE_free(resp);
816         return ret;
817         err:
818         ret = SSL_TLSEXT_ERR_ALERT_FATAL;
819         goto done;
820         }
821 #endif
822
823 int MAIN(int, char **);
824
825 int MAIN(int argc, char *argv[])
826         {
827         X509_STORE *store = NULL;
828         int vflags = 0;
829         short port=PORT;
830         char *CApath=NULL,*CAfile=NULL;
831         unsigned char *context = NULL;
832         char *dhfile = NULL;
833 #ifndef OPENSSL_NO_ECDH
834         char *named_curve = NULL;
835 #endif
836         int badop=0,bugs=0;
837         int ret=1;
838         int off=0;
839         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
840         int state=0;
841         const SSL_METHOD *meth=NULL;
842         int socket_type=SOCK_STREAM;
843 #ifndef OPENSSL_NO_ENGINE
844         ENGINE *e=NULL;
845 #endif
846         char *inrand=NULL;
847         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
848         char *passarg = NULL, *pass = NULL;
849         char *dpassarg = NULL, *dpass = NULL;
850         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
851         X509 *s_cert = NULL, *s_dcert = NULL;
852         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
853 #ifndef OPENSSL_NO_TLSEXT
854         EVP_PKEY *s_key2 = NULL;
855         X509 *s_cert2 = NULL;
856 #endif
857
858 #ifndef OPENSSL_NO_TLSEXT
859         tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
860 #endif
861 #ifndef OPENSSL_NO_PSK
862         /* by default do not send a PSK identity hint */
863         static char *psk_identity_hint=NULL;
864 #endif
865 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
866         meth=SSLv23_server_method();
867 #elif !defined(OPENSSL_NO_SSL3)
868         meth=SSLv3_server_method();
869 #elif !defined(OPENSSL_NO_SSL2)
870         meth=SSLv2_server_method();
871 #endif
872
873         local_argc=argc;
874         local_argv=argv;
875
876         apps_startup();
877 #ifdef MONOLITH
878         s_server_init();
879 #endif
880
881         if (bio_err == NULL)
882                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
883
884         if (!load_config(bio_err, NULL))
885                 goto end;
886
887         verify_depth=0;
888 #ifdef FIONBIO
889         s_nbio=0;
890 #endif
891         s_nbio_test=0;
892
893         argc--;
894         argv++;
895
896         while (argc >= 1)
897                 {
898                 if      ((strcmp(*argv,"-port") == 0) ||
899                          (strcmp(*argv,"-accept") == 0))
900                         {
901                         if (--argc < 1) goto bad;
902                         if (!extract_port(*(++argv),&port))
903                                 goto bad;
904                         }
905                 else if (strcmp(*argv,"-verify") == 0)
906                         {
907                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
908                         if (--argc < 1) goto bad;
909                         verify_depth=atoi(*(++argv));
910                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
911                         }
912                 else if (strcmp(*argv,"-Verify") == 0)
913                         {
914                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
915                                 SSL_VERIFY_CLIENT_ONCE;
916                         if (--argc < 1) goto bad;
917                         verify_depth=atoi(*(++argv));
918                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
919                         }
920                 else if (strcmp(*argv,"-context") == 0)
921                         {
922                         if (--argc < 1) goto bad;
923                         context= (unsigned char *)*(++argv);
924                         }
925                 else if (strcmp(*argv,"-cert") == 0)
926                         {
927                         if (--argc < 1) goto bad;
928                         s_cert_file= *(++argv);
929                         }
930                 else if (strcmp(*argv,"-certform") == 0)
931                         {
932                         if (--argc < 1) goto bad;
933                         s_cert_format = str2fmt(*(++argv));
934                         }
935                 else if (strcmp(*argv,"-key") == 0)
936                         {
937                         if (--argc < 1) goto bad;
938                         s_key_file= *(++argv);
939                         }
940                 else if (strcmp(*argv,"-keyform") == 0)
941                         {
942                         if (--argc < 1) goto bad;
943                         s_key_format = str2fmt(*(++argv));
944                         }
945                 else if (strcmp(*argv,"-pass") == 0)
946                         {
947                         if (--argc < 1) goto bad;
948                         passarg = *(++argv);
949                         }
950                 else if (strcmp(*argv,"-dhparam") == 0)
951                         {
952                         if (--argc < 1) goto bad;
953                         dhfile = *(++argv);
954                         }
955 #ifndef OPENSSL_NO_ECDH         
956                 else if (strcmp(*argv,"-named_curve") == 0)
957                         {
958                         if (--argc < 1) goto bad;
959                         named_curve = *(++argv);
960                         }
961 #endif
962                 else if (strcmp(*argv,"-dcertform") == 0)
963                         {
964                         if (--argc < 1) goto bad;
965                         s_dcert_format = str2fmt(*(++argv));
966                         }
967                 else if (strcmp(*argv,"-dcert") == 0)
968                         {
969                         if (--argc < 1) goto bad;
970                         s_dcert_file= *(++argv);
971                         }
972                 else if (strcmp(*argv,"-dkeyform") == 0)
973                         {
974                         if (--argc < 1) goto bad;
975                         s_dkey_format = str2fmt(*(++argv));
976                         }
977                 else if (strcmp(*argv,"-dpass") == 0)
978                         {
979                         if (--argc < 1) goto bad;
980                         dpassarg = *(++argv);
981                         }
982                 else if (strcmp(*argv,"-dkey") == 0)
983                         {
984                         if (--argc < 1) goto bad;
985                         s_dkey_file= *(++argv);
986                         }
987                 else if (strcmp(*argv,"-nocert") == 0)
988                         {
989                         nocert=1;
990                         }
991                 else if (strcmp(*argv,"-CApath") == 0)
992                         {
993                         if (--argc < 1) goto bad;
994                         CApath= *(++argv);
995                         }
996                 else if (strcmp(*argv,"-crl_check") == 0)
997                         {
998                         vflags |= X509_V_FLAG_CRL_CHECK;
999                         }
1000                 else if (strcmp(*argv,"-crl_check_all") == 0)
1001                         {
1002                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
1003                         }
1004                 else if (strcmp(*argv,"-verify_return_error") == 0)
1005                         verify_return_error = 1;
1006                 else if (strcmp(*argv,"-serverpref") == 0)
1007                         { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
1008                 else if (strcmp(*argv,"-cipher") == 0)
1009                         {
1010                         if (--argc < 1) goto bad;
1011                         cipher= *(++argv);
1012                         }
1013                 else if (strcmp(*argv,"-CAfile") == 0)
1014                         {
1015                         if (--argc < 1) goto bad;
1016                         CAfile= *(++argv);
1017                         }
1018 #ifdef FIONBIO  
1019                 else if (strcmp(*argv,"-nbio") == 0)
1020                         { s_nbio=1; }
1021 #endif
1022                 else if (strcmp(*argv,"-nbio_test") == 0)
1023                         {
1024 #ifdef FIONBIO  
1025                         s_nbio=1;
1026 #endif
1027                         s_nbio_test=1;
1028                         }
1029                 else if (strcmp(*argv,"-debug") == 0)
1030                         { s_debug=1; }
1031 #ifndef OPENSSL_NO_TLSEXT
1032                 else if (strcmp(*argv,"-tlsextdebug") == 0)
1033                         s_tlsextdebug=1;
1034                 else if (strcmp(*argv,"-status") == 0)
1035                         s_tlsextstatus=1;
1036                 else if (strcmp(*argv,"-status_verbose") == 0)
1037                         {
1038                         s_tlsextstatus=1;
1039                         tlscstatp.verbose = 1;
1040                         }
1041                 else if (!strcmp(*argv, "-status_timeout"))
1042                         {
1043                         s_tlsextstatus=1;
1044                         if (--argc < 1) goto bad;
1045                         tlscstatp.timeout = atoi(*(++argv));
1046                         }
1047                 else if (!strcmp(*argv, "-status_url"))
1048                         {
1049                         s_tlsextstatus=1;
1050                         if (--argc < 1) goto bad;
1051                         if (!OCSP_parse_url(*(++argv),
1052                                         &tlscstatp.host,
1053                                         &tlscstatp.port,
1054                                         &tlscstatp.path,
1055                                         &tlscstatp.use_ssl))
1056                                 {
1057                                 BIO_printf(bio_err, "Error parsing URL\n");
1058                                 goto bad;
1059                                 }
1060                         }
1061 #endif
1062                 else if (strcmp(*argv,"-msg") == 0)
1063                         { s_msg=1; }
1064                 else if (strcmp(*argv,"-hack") == 0)
1065                         { hack=1; }
1066                 else if (strcmp(*argv,"-state") == 0)
1067                         { state=1; }
1068                 else if (strcmp(*argv,"-crlf") == 0)
1069                         { s_crlf=1; }
1070                 else if (strcmp(*argv,"-quiet") == 0)
1071                         { s_quiet=1; }
1072                 else if (strcmp(*argv,"-bugs") == 0)
1073                         { bugs=1; }
1074                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
1075                         { no_tmp_rsa=1; }
1076                 else if (strcmp(*argv,"-no_dhe") == 0)
1077                         { no_dhe=1; }
1078                 else if (strcmp(*argv,"-no_ecdhe") == 0)
1079                         { no_ecdhe=1; }
1080 #ifndef OPENSSL_NO_PSK
1081                 else if (strcmp(*argv,"-psk_hint") == 0)
1082                         {
1083                         if (--argc < 1) goto bad;
1084                         psk_identity_hint= *(++argv);
1085                         }
1086                 else if (strcmp(*argv,"-psk") == 0)
1087                         {
1088                         size_t i;
1089
1090                         if (--argc < 1) goto bad;
1091                         psk_key=*(++argv);
1092                         for (i=0; i<strlen(psk_key); i++)
1093                                 {
1094                                 if (isxdigit((int)psk_key[i]))
1095                                         continue;
1096                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
1097                                 goto bad;
1098                                 }
1099                         }
1100 #endif
1101                 else if (strcmp(*argv,"-www") == 0)
1102                         { www=1; }
1103                 else if (strcmp(*argv,"-WWW") == 0)
1104                         { www=2; }
1105                 else if (strcmp(*argv,"-HTTP") == 0)
1106                         { www=3; }
1107                 else if (strcmp(*argv,"-no_ssl2") == 0)
1108                         { off|=SSL_OP_NO_SSLv2; }
1109                 else if (strcmp(*argv,"-no_ssl3") == 0)
1110                         { off|=SSL_OP_NO_SSLv3; }
1111                 else if (strcmp(*argv,"-no_tls1") == 0)
1112                         { off|=SSL_OP_NO_TLSv1; }
1113                 else if (strcmp(*argv,"-no_comp") == 0)
1114                         { off|=SSL_OP_NO_COMPRESSION; }
1115 #ifndef OPENSSL_NO_TLSEXT
1116                 else if (strcmp(*argv,"-no_ticket") == 0)
1117                         { off|=SSL_OP_NO_TICKET; }
1118 #endif
1119 #ifndef OPENSSL_NO_SSL2
1120                 else if (strcmp(*argv,"-ssl2") == 0)
1121                         { meth=SSLv2_server_method(); }
1122 #endif
1123 #ifndef OPENSSL_NO_SSL3
1124                 else if (strcmp(*argv,"-ssl3") == 0)
1125                         { meth=SSLv3_server_method(); }
1126 #endif
1127 #ifndef OPENSSL_NO_TLS1
1128                 else if (strcmp(*argv,"-tls1") == 0)
1129                         { meth=TLSv1_server_method(); }
1130 #endif
1131 #ifndef OPENSSL_NO_DTLS1
1132                 else if (strcmp(*argv,"-dtls1") == 0)
1133                         { 
1134                         meth=DTLSv1_server_method();
1135                         socket_type = SOCK_DGRAM;
1136                         }
1137                 else if (strcmp(*argv,"-timeout") == 0)
1138                         enable_timeouts = 1;
1139                 else if (strcmp(*argv,"-mtu") == 0)
1140                         {
1141                         if (--argc < 1) goto bad;
1142                         socket_mtu = atol(*(++argv));
1143                         }
1144                 else if (strcmp(*argv, "-chain") == 0)
1145                         cert_chain = 1;
1146 #endif
1147                 else if (strcmp(*argv, "-id_prefix") == 0)
1148                         {
1149                         if (--argc < 1) goto bad;
1150                         session_id_prefix = *(++argv);
1151                         }
1152 #ifndef OPENSSL_NO_ENGINE
1153                 else if (strcmp(*argv,"-engine") == 0)
1154                         {
1155                         if (--argc < 1) goto bad;
1156                         engine_id= *(++argv);
1157                         }
1158 #endif
1159                 else if (strcmp(*argv,"-rand") == 0)
1160                         {
1161                         if (--argc < 1) goto bad;
1162                         inrand= *(++argv);
1163                         }
1164 #ifndef OPENSSL_NO_TLSEXT
1165                 else if (strcmp(*argv,"-servername") == 0)
1166                         {
1167                         if (--argc < 1) goto bad;
1168                         tlsextcbp.servername= *(++argv);
1169                         }
1170                 else if (strcmp(*argv,"-servername_fatal") == 0)
1171                         { tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; }
1172                 else if (strcmp(*argv,"-cert2") == 0)
1173                         {
1174                         if (--argc < 1) goto bad;
1175                         s_cert_file2= *(++argv);
1176                         }
1177                 else if (strcmp(*argv,"-key2") == 0)
1178                         {
1179                         if (--argc < 1) goto bad;
1180                         s_key_file2= *(++argv);
1181                         }
1182 #endif
1183                 else
1184                         {
1185                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1186                         badop=1;
1187                         break;
1188                         }
1189                 argc--;
1190                 argv++;
1191                 }
1192         if (badop)
1193                 {
1194 bad:
1195                 sv_usage();
1196                 goto end;
1197                 }
1198
1199         SSL_load_error_strings();
1200         OpenSSL_add_ssl_algorithms();
1201
1202 #ifndef OPENSSL_NO_ENGINE
1203         e = setup_engine(bio_err, engine_id, 1);
1204 #endif
1205
1206         if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
1207                 {
1208                 BIO_printf(bio_err, "Error getting password\n");
1209                 goto end;
1210                 }
1211
1212
1213         if (s_key_file == NULL)
1214                 s_key_file = s_cert_file;
1215 #ifndef OPENSSL_NO_TLSEXT
1216         if (s_key_file2 == NULL)
1217                 s_key_file2 = s_cert_file2;
1218 #endif
1219
1220         if (nocert == 0)
1221                 {
1222                 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
1223                        "server certificate private key file");
1224                 if (!s_key)
1225                         {
1226                         ERR_print_errors(bio_err);
1227                         goto end;
1228                         }
1229
1230                 s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
1231                         NULL, e, "server certificate file");
1232
1233                 if (!s_cert)
1234                         {
1235                         ERR_print_errors(bio_err);
1236                         goto end;
1237                         }
1238
1239 #ifndef OPENSSL_NO_TLSEXT
1240                 if (tlsextcbp.servername) 
1241                         {
1242                         s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
1243                                 "second server certificate private key file");
1244                         if (!s_key2)
1245                                 {
1246                                 ERR_print_errors(bio_err);
1247                                 goto end;
1248                                 }
1249                         
1250                         s_cert2 = load_cert(bio_err,s_cert_file2,s_cert_format,
1251                                 NULL, e, "second server certificate file");
1252                         
1253                         if (!s_cert2)
1254                                 {
1255                                 ERR_print_errors(bio_err);
1256                                 goto end;
1257                                 }
1258                         }
1259 #endif
1260                 }
1261
1262
1263         if (s_dcert_file)
1264                 {
1265
1266                 if (s_dkey_file == NULL)
1267                         s_dkey_file = s_dcert_file;
1268
1269                 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
1270                                 0, dpass, e,
1271                                "second certificate private key file");
1272                 if (!s_dkey)
1273                         {
1274                         ERR_print_errors(bio_err);
1275                         goto end;
1276                         }
1277
1278                 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
1279                                 NULL, e, "second server certificate file");
1280
1281                 if (!s_dcert)
1282                         {
1283                         ERR_print_errors(bio_err);
1284                         goto end;
1285                         }
1286
1287                 }
1288
1289         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1290                 && !RAND_status())
1291                 {
1292                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1293                 }
1294         if (inrand != NULL)
1295                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1296                         app_RAND_load_files(inrand));
1297
1298         if (bio_s_out == NULL)
1299                 {
1300                 if (s_quiet && !s_debug && !s_msg)
1301                         {
1302                         bio_s_out=BIO_new(BIO_s_null());
1303                         }
1304                 else
1305                         {
1306                         if (bio_s_out == NULL)
1307                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1308                         }
1309                 }
1310
1311 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
1312         if (nocert)
1313 #endif
1314                 {
1315                 s_cert_file=NULL;
1316                 s_key_file=NULL;
1317                 s_dcert_file=NULL;
1318                 s_dkey_file=NULL;
1319 #ifndef OPENSSL_NO_TLSEXT
1320                 s_cert_file2=NULL;
1321                 s_key_file2=NULL;
1322 #endif
1323                 }
1324
1325         ctx=SSL_CTX_new(meth);
1326         if (ctx == NULL)
1327                 {
1328                 ERR_print_errors(bio_err);
1329                 goto end;
1330                 }
1331         if (session_id_prefix)
1332                 {
1333                 if(strlen(session_id_prefix) >= 32)
1334                         BIO_printf(bio_err,
1335 "warning: id_prefix is too long, only one new session will be possible\n");
1336                 else if(strlen(session_id_prefix) >= 16)
1337                         BIO_printf(bio_err,
1338 "warning: id_prefix is too long if you use SSLv2\n");
1339                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
1340                         {
1341                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
1342                         ERR_print_errors(bio_err);
1343                         goto end;
1344                         }
1345                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1346                 }
1347         SSL_CTX_set_quiet_shutdown(ctx,1);
1348         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
1349         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1350         SSL_CTX_set_options(ctx,off);
1351         /* DTLS: partial reads end up discarding unread UDP bytes :-( 
1352          * Setting read ahead solves this problem.
1353          */
1354         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1355
1356         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1357
1358         SSL_CTX_sess_set_cache_size(ctx,128);
1359
1360 #if 0
1361         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
1362 #endif
1363
1364 #if 0
1365         if (s_cert_file == NULL)
1366                 {
1367                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
1368                 goto end;
1369                 }
1370 #endif
1371
1372         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1373                 (!SSL_CTX_set_default_verify_paths(ctx)))
1374                 {
1375                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1376                 ERR_print_errors(bio_err);
1377                 /* goto end; */
1378                 }
1379         store = SSL_CTX_get_cert_store(ctx);
1380         X509_STORE_set_flags(store, vflags);
1381
1382 #ifndef OPENSSL_NO_TLSEXT
1383         if (s_cert2)
1384                 {
1385                 ctx2=SSL_CTX_new(meth);
1386                 if (ctx2 == NULL)
1387                         {
1388                         ERR_print_errors(bio_err);
1389                         goto end;
1390                         }
1391                 }
1392         
1393         if (ctx2)
1394                 {
1395                 BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
1396
1397                 if (session_id_prefix)
1398                         {
1399                         if(strlen(session_id_prefix) >= 32)
1400                                 BIO_printf(bio_err,
1401                                         "warning: id_prefix is too long, only one new session will be possible\n");
1402                         else if(strlen(session_id_prefix) >= 16)
1403                                 BIO_printf(bio_err,
1404                                         "warning: id_prefix is too long if you use SSLv2\n");
1405                         if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
1406                                 {
1407                                 BIO_printf(bio_err,"error setting 'id_prefix'\n");
1408                                 ERR_print_errors(bio_err);
1409                                 goto end;
1410                                 }
1411                         BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1412                         }
1413                 SSL_CTX_set_quiet_shutdown(ctx2,1);
1414                 if (bugs) SSL_CTX_set_options(ctx2,SSL_OP_ALL);
1415                 if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1416                 SSL_CTX_set_options(ctx2,off);
1417                 /* DTLS: partial reads end up discarding unread UDP bytes :-( 
1418                  * Setting read ahead solves this problem.
1419                  */
1420                 if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
1421
1422                 if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
1423
1424                 SSL_CTX_sess_set_cache_size(ctx2,128);
1425
1426                 if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
1427                         (!SSL_CTX_set_default_verify_paths(ctx2)))
1428                         {
1429                         ERR_print_errors(bio_err);
1430                         }
1431                 store = SSL_CTX_get_cert_store(ctx2);
1432                 X509_STORE_set_flags(store, vflags);
1433                 }
1434 #endif 
1435
1436 #ifndef OPENSSL_NO_DH
1437         if (!no_dhe)
1438                 {
1439                 DH *dh=NULL;
1440
1441                 if (dhfile)
1442                         dh = load_dh_param(dhfile);
1443                 else if (s_cert_file)
1444                         dh = load_dh_param(s_cert_file);
1445
1446                 if (dh != NULL)
1447                         {
1448                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1449                         }
1450                 else
1451                         {
1452                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
1453                         dh=get_dh512();
1454                         }
1455                 (void)BIO_flush(bio_s_out);
1456
1457                 SSL_CTX_set_tmp_dh(ctx,dh);
1458 #ifndef OPENSSL_NO_TLSEXT
1459                 if (ctx2)
1460                         {
1461                         if (!dhfile)
1462                                 { 
1463                                 DH *dh2=load_dh_param(s_cert_file2);
1464                                 if (dh2 != NULL)
1465                                         {
1466                                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1467                                         (void)BIO_flush(bio_s_out);
1468
1469                                         DH_free(dh);
1470                                         dh = dh2;
1471                                         }
1472                                 }
1473                         SSL_CTX_set_tmp_dh(ctx2,dh);
1474                         }
1475 #endif
1476                 DH_free(dh);
1477                 }
1478 #endif
1479
1480 #ifndef OPENSSL_NO_ECDH
1481         if (!no_ecdhe)
1482                 {
1483                 EC_KEY *ecdh=NULL;
1484
1485                 if (named_curve)
1486                         {
1487                         int nid = OBJ_sn2nid(named_curve);
1488
1489                         if (nid == 0)
1490                                 {
1491                                 BIO_printf(bio_err, "unknown curve name (%s)\n", 
1492                                         named_curve);
1493                                 goto end;
1494                                 }
1495                         ecdh = EC_KEY_new_by_curve_name(nid);
1496                         if (ecdh == NULL)
1497                                 {
1498                                 BIO_printf(bio_err, "unable to create curve (%s)\n", 
1499                                         named_curve);
1500                                 goto end;
1501                                 }
1502                         }
1503
1504                 if (ecdh != NULL)
1505                         {
1506                         BIO_printf(bio_s_out,"Setting temp ECDH parameters\n");
1507                         }
1508                 else
1509                         {
1510                         BIO_printf(bio_s_out,"Using default temp ECDH parameters\n");
1511                         ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
1512                         if (ecdh == NULL) 
1513                                 {
1514                                 BIO_printf(bio_err, "unable to create curve (nistp256)\n");
1515                                 goto end;
1516                                 }
1517                         }
1518                 (void)BIO_flush(bio_s_out);
1519
1520                 SSL_CTX_set_tmp_ecdh(ctx,ecdh);
1521 #ifndef OPENSSL_NO_TLSEXT
1522                 if (ctx2) 
1523                         SSL_CTX_set_tmp_ecdh(ctx2,ecdh);
1524 #endif
1525                 EC_KEY_free(ecdh);
1526                 }
1527 #endif
1528         
1529         if (!set_cert_key_stuff(ctx,s_cert,s_key))
1530                 goto end;
1531 #ifndef OPENSSL_NO_TLSEXT
1532         if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2))
1533                 goto end; 
1534 #endif
1535         if (s_dcert != NULL)
1536                 {
1537                 if (!set_cert_key_stuff(ctx,s_dcert,s_dkey))
1538                         goto end;
1539                 }
1540
1541 #ifndef OPENSSL_NO_RSA
1542 #if 1
1543         if (!no_tmp_rsa)
1544                 {
1545                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
1546 #ifndef OPENSSL_NO_TLSEXT
1547                 if (ctx2) 
1548                         SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
1549 #endif          
1550                 }
1551 #else
1552         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
1553                 {
1554                 RSA *rsa;
1555
1556                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
1557                 BIO_flush(bio_s_out);
1558
1559                 rsa=RSA_generate_key(512,RSA_F4,NULL);
1560
1561                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
1562                         {
1563                         ERR_print_errors(bio_err);
1564                         goto end;
1565                         }
1566 #ifndef OPENSSL_NO_TLSEXT
1567                         if (ctx2)
1568                                 {
1569                                 if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
1570                                         {
1571                                         ERR_print_errors(bio_err);
1572                                         goto end;
1573                                         }
1574                                 }
1575 #endif
1576                 RSA_free(rsa);
1577                 BIO_printf(bio_s_out,"\n");
1578                 }
1579 #endif
1580 #endif
1581
1582 #ifndef OPENSSL_NO_PSK
1583         if (psk_key != NULL)
1584                 {
1585                 if (s_debug)
1586                         BIO_printf(bio_s_out, "PSK key given, setting server callback\n");
1587                 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
1588                 }
1589
1590         if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint))
1591                 {
1592                 BIO_printf(bio_err,"error setting PSK identity hint to context\n");
1593                 ERR_print_errors(bio_err);
1594                 goto end;
1595                 }
1596 #endif
1597
1598         if (cipher != NULL)
1599                 {
1600                 if(!SSL_CTX_set_cipher_list(ctx,cipher))
1601                         {
1602                         BIO_printf(bio_err,"error setting cipher list\n");
1603                         ERR_print_errors(bio_err);
1604                         goto end;
1605                         }
1606 #ifndef OPENSSL_NO_TLSEXT
1607                 if (ctx2 && !SSL_CTX_set_cipher_list(ctx2,cipher))
1608                         {
1609                         BIO_printf(bio_err,"error setting cipher list\n");
1610                         ERR_print_errors(bio_err);
1611                         goto end;
1612                         }
1613 #endif
1614                 }
1615         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
1616         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
1617                 sizeof s_server_session_id_context);
1618
1619 #ifndef OPENSSL_NO_TLSEXT
1620         if (ctx2)
1621                 {
1622                 SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
1623                 SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
1624                         sizeof s_server_session_id_context);
1625
1626                 tlsextcbp.biodebug = bio_s_out;
1627                 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
1628                 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
1629                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1630                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1631                 }
1632 #endif
1633
1634         if (CAfile != NULL)
1635                 {
1636                 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
1637 #ifndef OPENSSL_NO_TLSEXT
1638                 if (ctx2) 
1639                         SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
1640 #endif
1641                 }
1642
1643         BIO_printf(bio_s_out,"ACCEPT\n");
1644         (void)BIO_flush(bio_s_out);
1645         if (www)
1646                 do_server(port,socket_type,&accept_socket,www_body, context);
1647         else
1648                 do_server(port,socket_type,&accept_socket,sv_body, context);
1649         print_stats(bio_s_out,ctx);
1650         ret=0;
1651 end:
1652         if (ctx != NULL) SSL_CTX_free(ctx);
1653         if (s_cert)
1654                 X509_free(s_cert);
1655         if (s_dcert)
1656                 X509_free(s_dcert);
1657         if (s_key)
1658                 EVP_PKEY_free(s_key);
1659         if (s_dkey)
1660                 EVP_PKEY_free(s_dkey);
1661         if (pass)
1662                 OPENSSL_free(pass);
1663         if (dpass)
1664                 OPENSSL_free(dpass);
1665 #ifndef OPENSSL_NO_TLSEXT
1666         if (ctx2 != NULL) SSL_CTX_free(ctx2);
1667         if (s_cert2)
1668                 X509_free(s_cert2);
1669         if (s_key2)
1670                 EVP_PKEY_free(s_key2);
1671 #endif
1672         if (bio_s_out != NULL)
1673                 {
1674         BIO_free(bio_s_out);
1675                 bio_s_out=NULL;
1676                 }
1677         apps_shutdown();
1678         OPENSSL_EXIT(ret);
1679         }
1680
1681 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
1682         {
1683         BIO_printf(bio,"%4ld items in the session cache\n",
1684                 SSL_CTX_sess_number(ssl_ctx));
1685         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
1686                 SSL_CTX_sess_connect(ssl_ctx));
1687         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
1688                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
1689         BIO_printf(bio,"%4ld client connects that finished\n",
1690                 SSL_CTX_sess_connect_good(ssl_ctx));
1691         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
1692                 SSL_CTX_sess_accept(ssl_ctx));
1693         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
1694                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
1695         BIO_printf(bio,"%4ld server accepts that finished\n",
1696                 SSL_CTX_sess_accept_good(ssl_ctx));
1697         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
1698         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
1699         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
1700         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
1701         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
1702                 SSL_CTX_sess_cache_full(ssl_ctx),
1703                 SSL_CTX_sess_get_cache_size(ssl_ctx));
1704         }
1705
1706 static int sv_body(char *hostname, int s, unsigned char *context)
1707         {
1708         char *buf=NULL;
1709         fd_set readfds;
1710         int ret=1,width;
1711         int k,i;
1712         unsigned long l;
1713         SSL *con=NULL;
1714         BIO *sbio;
1715 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1716         struct timeval tv;
1717 #endif
1718
1719         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
1720                 {
1721                 BIO_printf(bio_err,"out of memory\n");
1722                 goto err;
1723                 }
1724 #ifdef FIONBIO  
1725         if (s_nbio)
1726                 {
1727                 unsigned long sl=1;
1728
1729                 if (!s_quiet)
1730                         BIO_printf(bio_err,"turning on non blocking io\n");
1731                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1732                         ERR_print_errors(bio_err);
1733                 }
1734 #endif
1735
1736         if (con == NULL) {
1737                 con=SSL_new(ctx);
1738 #ifndef OPENSSL_NO_TLSEXT
1739         if (s_tlsextdebug)
1740                 {
1741                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1742                 SSL_set_tlsext_debug_arg(con, bio_s_out);
1743                 }
1744         if (s_tlsextstatus)
1745                 {
1746                 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
1747                 tlscstatp.err = bio_err;
1748                 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
1749                 }
1750 #endif
1751 #ifndef OPENSSL_NO_KRB5
1752                 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
1753                         {
1754                         kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE,
1755                                                                 KRB5SVC);
1756                         kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB,
1757                                                                 KRB5KEYTAB);
1758                         }
1759 #endif  /* OPENSSL_NO_KRB5 */
1760                 if(context)
1761                       SSL_set_session_id_context(con, context,
1762                                                  strlen((char *)context));
1763         }
1764         SSL_clear(con);
1765 #if 0
1766 #ifdef TLSEXT_TYPE_opaque_prf_input
1767         SSL_set_tlsext_opaque_prf_input(con, "Test server", 11);
1768 #endif
1769 #endif
1770
1771         if (SSL_version(con) == DTLS1_VERSION)
1772                 {
1773                 struct timeval timeout;
1774
1775                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
1776
1777                 if (enable_timeouts)
1778                         {
1779                         timeout.tv_sec = 0;
1780                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1781                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1782                         
1783                         timeout.tv_sec = 0;
1784                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
1785                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1786                         }
1787
1788                 if (socket_mtu > 0)
1789                         {
1790                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1791                         SSL_set_mtu(con, socket_mtu);
1792                         }
1793                 else
1794                         /* want to do MTU discovery */
1795                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1796
1797         /* turn on cookie exchange */
1798         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
1799                 }
1800         else
1801                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
1802
1803         if (s_nbio_test)
1804                 {
1805                 BIO *test;
1806
1807                 test=BIO_new(BIO_f_nbio_test());
1808                 sbio=BIO_push(test,sbio);
1809                 }
1810         SSL_set_bio(con,sbio,sbio);
1811         SSL_set_accept_state(con);
1812         /* SSL_set_fd(con,s); */
1813
1814         if (s_debug)
1815                 {
1816                 con->debug=1;
1817                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
1818                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
1819                 }
1820         if (s_msg)
1821                 {
1822                 SSL_set_msg_callback(con, msg_cb);
1823                 SSL_set_msg_callback_arg(con, bio_s_out);
1824                 }
1825 #ifndef OPENSSL_NO_TLSEXT
1826         if (s_tlsextdebug)
1827                 {
1828                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1829                 SSL_set_tlsext_debug_arg(con, bio_s_out);
1830                 }
1831 #endif
1832
1833         width=s+1;
1834         for (;;)
1835                 {
1836                 int read_from_terminal;
1837                 int read_from_sslcon;
1838
1839                 read_from_terminal = 0;
1840                 read_from_sslcon = SSL_pending(con);
1841
1842                 if (!read_from_sslcon)
1843                         {
1844                         FD_ZERO(&readfds);
1845 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_BEOS_R5)
1846                         openssl_fdset(fileno(stdin),&readfds);
1847 #endif
1848                         openssl_fdset(s,&readfds);
1849                         /* Note: under VMS with SOCKETSHR the second parameter is
1850                          * currently of type (int *) whereas under other systems
1851                          * it is (void *) if you don't have a cast it will choke
1852                          * the compiler: if you do have a cast then you can either
1853                          * go for (int *) or (void *).
1854                          */
1855 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
1856                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
1857                          * on sockets. As a workaround we timeout the select every
1858                          * second and check for any keypress. In a proper Windows
1859                          * application we wouldn't do this because it is inefficient.
1860                          */
1861                         tv.tv_sec = 1;
1862                         tv.tv_usec = 0;
1863                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
1864                         if((i < 0) || (!i && !_kbhit() ) )continue;
1865                         if(_kbhit())
1866                                 read_from_terminal = 1;
1867 #elif defined(OPENSSL_SYS_BEOS_R5)
1868                         /* Under BeOS-R5 the situation is similar to DOS */
1869                         tv.tv_sec = 1;
1870                         tv.tv_usec = 0;
1871                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1872                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
1873                         if ((i < 0) || (!i && read(fileno(stdin), buf, 0) < 0))
1874                                 continue;
1875                         if (read(fileno(stdin), buf, 0) >= 0)
1876                                 read_from_terminal = 1;
1877                         (void)fcntl(fileno(stdin), F_SETFL, 0);
1878 #else
1879                         i=select(width,(void *)&readfds,NULL,NULL,NULL);
1880                         if (i <= 0) continue;
1881                         if (FD_ISSET(fileno(stdin),&readfds))
1882                                 read_from_terminal = 1;
1883 #endif
1884                         if (FD_ISSET(s,&readfds))
1885                                 read_from_sslcon = 1;
1886                         }
1887                 if (read_from_terminal)
1888                         {
1889                         if (s_crlf)
1890                                 {
1891                                 int j, lf_num;
1892
1893                                 i=raw_read_stdin(buf, bufsize/2);
1894                                 lf_num = 0;
1895                                 /* both loops are skipped when i <= 0 */
1896                                 for (j = 0; j < i; j++)
1897                                         if (buf[j] == '\n')
1898                                                 lf_num++;
1899                                 for (j = i-1; j >= 0; j--)
1900                                         {
1901                                         buf[j+lf_num] = buf[j];
1902                                         if (buf[j] == '\n')
1903                                                 {
1904                                                 lf_num--;
1905                                                 i++;
1906                                                 buf[j+lf_num] = '\r';
1907                                                 }
1908                                         }
1909                                 assert(lf_num == 0);
1910                                 }
1911                         else
1912                                 i=raw_read_stdin(buf,bufsize);
1913                         if (!s_quiet)
1914                                 {
1915                                 if ((i <= 0) || (buf[0] == 'Q'))
1916                                         {
1917                                         BIO_printf(bio_s_out,"DONE\n");
1918                                         SHUTDOWN(s);
1919                                         close_accept_socket();
1920                                         ret= -11;
1921                                         goto err;
1922                                         }
1923                                 if ((i <= 0) || (buf[0] == 'q'))
1924                                         {
1925                                         BIO_printf(bio_s_out,"DONE\n");
1926                                         if (SSL_version(con) != DTLS1_VERSION)
1927                         SHUTDOWN(s);
1928         /*                              close_accept_socket();
1929                                         ret= -11;*/
1930                                         goto err;
1931                                         }
1932
1933                                 if ((buf[0] == 'r') && 
1934                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1935                                         {
1936                                         SSL_renegotiate(con);
1937                                         i=SSL_do_handshake(con);
1938                                         printf("SSL_do_handshake -> %d\n",i);
1939                                         i=0; /*13; */
1940                                         continue;
1941                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
1942                                         }
1943                                 if ((buf[0] == 'R') &&
1944                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1945                                         {
1946                                         SSL_set_verify(con,
1947                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
1948                                         SSL_renegotiate(con);
1949                                         i=SSL_do_handshake(con);
1950                                         printf("SSL_do_handshake -> %d\n",i);
1951                                         i=0; /* 13; */
1952                                         continue;
1953                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
1954                                         }
1955                                 if (buf[0] == 'P')
1956                                         {
1957                                         static const char *str="Lets print some clear text\n";
1958                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
1959                                         }
1960                                 if (buf[0] == 'S')
1961                                         {
1962                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
1963                                         }
1964                                 }
1965 #ifdef CHARSET_EBCDIC
1966                         ebcdic2ascii(buf,buf,i);
1967 #endif
1968                         l=k=0;
1969                         for (;;)
1970                                 {
1971                                 /* should do a select for the write */
1972 #ifdef RENEG
1973 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
1974 #endif
1975                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
1976                                 switch (SSL_get_error(con,k))
1977                                         {
1978                                 case SSL_ERROR_NONE:
1979                                         break;
1980                                 case SSL_ERROR_WANT_WRITE:
1981                                 case SSL_ERROR_WANT_READ:
1982                                 case SSL_ERROR_WANT_X509_LOOKUP:
1983                                         BIO_printf(bio_s_out,"Write BLOCK\n");
1984                                         break;
1985                                 case SSL_ERROR_SYSCALL:
1986                                 case SSL_ERROR_SSL:
1987                                         BIO_printf(bio_s_out,"ERROR\n");
1988                                         ERR_print_errors(bio_err);
1989                                         ret=1;
1990                                         goto err;
1991                                         /* break; */
1992                                 case SSL_ERROR_ZERO_RETURN:
1993                                         BIO_printf(bio_s_out,"DONE\n");
1994                                         ret=1;
1995                                         goto err;
1996                                         }
1997                                 l+=k;
1998                                 i-=k;
1999                                 if (i <= 0) break;
2000                                 }
2001                         }
2002                 if (read_from_sslcon)
2003                         {
2004                         if (!SSL_is_init_finished(con))
2005                                 {
2006                                 i=init_ssl_connection(con);
2007                                 
2008                                 if (i < 0)
2009                                         {
2010                                         ret=0;
2011                                         goto err;
2012                                         }
2013                                 else if (i == 0)
2014                                         {
2015                                         ret=1;
2016                                         goto err;
2017                                         }
2018                                 }
2019                         else
2020                                 {
2021 again:  
2022                                 i=SSL_read(con,(char *)buf,bufsize);
2023                                 switch (SSL_get_error(con,i))
2024                                         {
2025                                 case SSL_ERROR_NONE:
2026 #ifdef CHARSET_EBCDIC
2027                                         ascii2ebcdic(buf,buf,i);
2028 #endif
2029                                         raw_write_stdout(buf,
2030                                                 (unsigned int)i);
2031                                         if (SSL_pending(con)) goto again;
2032                                         break;
2033                                 case SSL_ERROR_WANT_WRITE:
2034                                 case SSL_ERROR_WANT_READ:
2035                                 case SSL_ERROR_WANT_X509_LOOKUP:
2036                                         BIO_printf(bio_s_out,"Read BLOCK\n");
2037                                         break;
2038                                 case SSL_ERROR_SYSCALL:
2039                                 case SSL_ERROR_SSL:
2040                                         BIO_printf(bio_s_out,"ERROR\n");
2041                                         ERR_print_errors(bio_err);
2042                                         ret=1;
2043                                         goto err;
2044                                 case SSL_ERROR_ZERO_RETURN:
2045                                         BIO_printf(bio_s_out,"DONE\n");
2046                                         ret=1;
2047                                         goto err;
2048                                         }
2049                                 }
2050                         }
2051                 }
2052 err:
2053         if (con != NULL)
2054                 {
2055                 BIO_printf(bio_s_out,"shutting down SSL\n");
2056 #if 1
2057                 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2058 #else
2059                 SSL_shutdown(con);
2060 #endif
2061                 SSL_free(con);
2062                 }
2063         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
2064         if (buf != NULL)
2065                 {
2066                 OPENSSL_cleanse(buf,bufsize);
2067                 OPENSSL_free(buf);
2068                 }
2069         if (ret >= 0)
2070                 BIO_printf(bio_s_out,"ACCEPT\n");
2071         return(ret);
2072         }
2073
2074 static void close_accept_socket(void)
2075         {
2076         BIO_printf(bio_err,"shutdown accept socket\n");
2077         if (accept_socket >= 0)
2078                 {
2079                 SHUTDOWN2(accept_socket);
2080                 }
2081         }
2082
2083 static int init_ssl_connection(SSL *con)
2084         {
2085         int i;
2086         const char *str;
2087         X509 *peer;
2088         long verify_error;
2089         MS_STATIC char buf[BUFSIZ];
2090
2091         if ((i=SSL_accept(con)) <= 0)
2092                 {
2093                 if (BIO_sock_should_retry(i))
2094                         {
2095                         BIO_printf(bio_s_out,"DELAY\n");
2096                         return(1);
2097                         }
2098
2099                 BIO_printf(bio_err,"ERROR\n");
2100                 verify_error=SSL_get_verify_result(con);
2101                 if (verify_error != X509_V_OK)
2102                         {
2103                         BIO_printf(bio_err,"verify error:%s\n",
2104                                 X509_verify_cert_error_string(verify_error));
2105                         }
2106                 else
2107                         ERR_print_errors(bio_err);
2108                 return(0);
2109                 }
2110
2111         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
2112
2113         peer=SSL_get_peer_certificate(con);
2114         if (peer != NULL)
2115                 {
2116                 BIO_printf(bio_s_out,"Client certificate\n");
2117                 PEM_write_bio_X509(bio_s_out,peer);
2118                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
2119                 BIO_printf(bio_s_out,"subject=%s\n",buf);
2120                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
2121                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
2122                 X509_free(peer);
2123                 }
2124
2125         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
2126                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
2127         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2128         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
2129         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
2130         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
2131                 TLS1_FLAGS_TLS_PADDING_BUG)
2132                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
2133 #ifndef OPENSSL_NO_KRB5
2134         if (con->kssl_ctx->client_princ != NULL)
2135                 {
2136                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
2137                         con->kssl_ctx->client_princ);
2138                 }
2139 #endif /* OPENSSL_NO_KRB5 */
2140         return(1);
2141         }
2142
2143 #ifndef OPENSSL_NO_DH
2144 static DH *load_dh_param(const char *dhfile)
2145         {
2146         DH *ret=NULL;
2147         BIO *bio;
2148
2149         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
2150                 goto err;
2151         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
2152 err:
2153         if (bio != NULL) BIO_free(bio);
2154         return(ret);
2155         }
2156 #endif
2157
2158 #if 0
2159 static int load_CA(SSL_CTX *ctx, char *file)
2160         {
2161         FILE *in;
2162         X509 *x=NULL;
2163
2164         if ((in=fopen(file,"r")) == NULL)
2165                 return(0);
2166
2167         for (;;)
2168                 {
2169                 if (PEM_read_X509(in,&x,NULL) == NULL)
2170                         break;
2171                 SSL_CTX_add_client_CA(ctx,x);
2172                 }
2173         if (x != NULL) X509_free(x);
2174         fclose(in);
2175         return(1);
2176         }
2177 #endif
2178
2179 static int www_body(char *hostname, int s, unsigned char *context)
2180         {
2181         char *buf=NULL;
2182         int ret=1;
2183         int i,j,k,blank,dot;
2184         SSL *con;
2185         SSL_CIPHER *c;
2186         BIO *io,*ssl_bio,*sbio;
2187         long total_bytes;
2188
2189         buf=OPENSSL_malloc(bufsize);
2190         if (buf == NULL) return(0);
2191         io=BIO_new(BIO_f_buffer());
2192         ssl_bio=BIO_new(BIO_f_ssl());
2193         if ((io == NULL) || (ssl_bio == NULL)) goto err;
2194
2195 #ifdef FIONBIO  
2196         if (s_nbio)
2197                 {
2198                 unsigned long sl=1;
2199
2200                 if (!s_quiet)
2201                         BIO_printf(bio_err,"turning on non blocking io\n");
2202                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2203                         ERR_print_errors(bio_err);
2204                 }
2205 #endif
2206
2207         /* lets make the output buffer a reasonable size */
2208         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
2209
2210         if ((con=SSL_new(ctx)) == NULL) goto err;
2211 #ifndef OPENSSL_NO_TLSEXT
2212                 if (s_tlsextdebug)
2213                         {
2214                         SSL_set_tlsext_debug_callback(con, tlsext_cb);
2215                         SSL_set_tlsext_debug_arg(con, bio_s_out);
2216                         }
2217 #endif
2218 #ifndef OPENSSL_NO_KRB5
2219         if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
2220                 {
2221                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC);
2222                 kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB);
2223                 }
2224 #endif  /* OPENSSL_NO_KRB5 */
2225         if(context) SSL_set_session_id_context(con, context,
2226                                                strlen((char *)context));
2227
2228         sbio=BIO_new_socket(s,BIO_NOCLOSE);
2229         if (s_nbio_test)
2230                 {
2231                 BIO *test;
2232
2233                 test=BIO_new(BIO_f_nbio_test());
2234                 sbio=BIO_push(test,sbio);
2235                 }
2236         SSL_set_bio(con,sbio,sbio);
2237         SSL_set_accept_state(con);
2238
2239         /* SSL_set_fd(con,s); */
2240         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
2241         BIO_push(io,ssl_bio);
2242 #ifdef CHARSET_EBCDIC
2243         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
2244 #endif
2245
2246         if (s_debug)
2247                 {
2248                 con->debug=1;
2249                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2250                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2251                 }
2252         if (s_msg)
2253                 {
2254                 SSL_set_msg_callback(con, msg_cb);
2255                 SSL_set_msg_callback_arg(con, bio_s_out);
2256                 }
2257
2258         blank=0;
2259         for (;;)
2260                 {
2261                 if (hack)
2262                         {
2263                         i=SSL_accept(con);
2264
2265                         switch (SSL_get_error(con,i))
2266                                 {
2267                         case SSL_ERROR_NONE:
2268                                 break;
2269                         case SSL_ERROR_WANT_WRITE:
2270                         case SSL_ERROR_WANT_READ:
2271                         case SSL_ERROR_WANT_X509_LOOKUP:
2272                                 continue;
2273                         case SSL_ERROR_SYSCALL:
2274                         case SSL_ERROR_SSL:
2275                         case SSL_ERROR_ZERO_RETURN:
2276                                 ret=1;
2277                                 goto err;
2278                                 /* break; */
2279                                 }
2280
2281                         SSL_renegotiate(con);
2282                         SSL_write(con,NULL,0);
2283                         }
2284
2285                 i=BIO_gets(io,buf,bufsize-1);
2286                 if (i < 0) /* error */
2287                         {
2288                         if (!BIO_should_retry(io))
2289                                 {
2290                                 if (!s_quiet)
2291                                         ERR_print_errors(bio_err);
2292                                 goto err;
2293                                 }
2294                         else
2295                                 {
2296                                 BIO_printf(bio_s_out,"read R BLOCK\n");
2297 #if defined(OPENSSL_SYS_NETWARE)
2298             delay(1000);
2299 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
2300                                 sleep(1);
2301 #endif
2302                                 continue;
2303                                 }
2304                         }
2305                 else if (i == 0) /* end of input */
2306                         {
2307                         ret=1;
2308                         goto end;
2309                         }
2310
2311                 /* else we have data */
2312                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
2313                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
2314                         {
2315                         char *p;
2316                         X509 *peer;
2317                         STACK_OF(SSL_CIPHER) *sk;
2318                         static const char *space="                          ";
2319
2320                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2321                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
2322                         BIO_puts(io,"<pre>\n");
2323 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
2324                         BIO_puts(io,"\n");
2325                         for (i=0; i<local_argc; i++)
2326                                 {
2327                                 BIO_puts(io,local_argv[i]);
2328                                 BIO_write(io," ",1);
2329                                 }
2330                         BIO_puts(io,"\n");
2331
2332                         /* The following is evil and should not really
2333                          * be done */
2334                         BIO_printf(io,"Ciphers supported in s_server binary\n");
2335                         sk=SSL_get_ciphers(con);
2336                         j=sk_SSL_CIPHER_num(sk);
2337                         for (i=0; i<j; i++)
2338                                 {
2339                                 c=sk_SSL_CIPHER_value(sk,i);
2340                                 BIO_printf(io,"%-11s:%-25s",
2341                                         SSL_CIPHER_get_version(c),
2342                                         SSL_CIPHER_get_name(c));
2343                                 if ((((i+1)%2) == 0) && (i+1 != j))
2344                                         BIO_puts(io,"\n");
2345                                 }
2346                         BIO_puts(io,"\n");
2347                         p=SSL_get_shared_ciphers(con,buf,bufsize);
2348                         if (p != NULL)
2349                                 {
2350                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
2351                                 j=i=0;
2352                                 while (*p)
2353                                         {
2354                                         if (*p == ':')
2355                                                 {
2356                                                 BIO_write(io,space,26-j);
2357                                                 i++;
2358                                                 j=0;
2359                                                 BIO_write(io,((i%3)?" ":"\n"),1);
2360                                                 }
2361                                         else
2362                                                 {
2363                                                 BIO_write(io,p,1);
2364                                                 j++;
2365                                                 }
2366                                         p++;
2367                                         }
2368                                 BIO_puts(io,"\n");
2369                                 }
2370                         BIO_printf(io,((con->hit)
2371                                 ?"---\nReused, "
2372                                 :"---\nNew, "));
2373                         c=SSL_get_current_cipher(con);
2374                         BIO_printf(io,"%s, Cipher is %s\n",
2375                                 SSL_CIPHER_get_version(c),
2376                                 SSL_CIPHER_get_name(c));
2377                         SSL_SESSION_print(io,SSL_get_session(con));
2378                         BIO_printf(io,"---\n");
2379                         print_stats(io,SSL_get_SSL_CTX(con));
2380                         BIO_printf(io,"---\n");
2381                         peer=SSL_get_peer_certificate(con);
2382                         if (peer != NULL)
2383                                 {
2384                                 BIO_printf(io,"Client certificate\n");
2385                                 X509_print(io,peer);
2386                                 PEM_write_bio_X509(io,peer);
2387                                 }
2388                         else
2389                                 BIO_puts(io,"no client certificate available\n");
2390                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
2391                         break;
2392                         }
2393                 else if ((www == 2 || www == 3)
2394                          && (strncmp("GET /",buf,5) == 0))
2395                         {
2396                         BIO *file;
2397                         char *p,*e;
2398                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
2399
2400                         /* skip the '/' */
2401                         p= &(buf[5]);
2402
2403                         dot = 1;
2404                         for (e=p; *e != '\0'; e++)
2405                                 {
2406                                 if (e[0] == ' ')
2407                                         break;
2408
2409                                 switch (dot)
2410                                         {
2411                                 case 1:
2412                                         dot = (e[0] == '.') ? 2 : 0;
2413                                         break;
2414                                 case 2:
2415                                         dot = (e[0] == '.') ? 3 : 0;
2416                                         break;
2417                                 case 3:
2418                                         dot = (e[0] == '/') ? -1 : 0;
2419                                         break;
2420                                         }
2421                                 if (dot == 0)
2422                                         dot = (e[0] == '/') ? 1 : 0;
2423                                 }
2424                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
2425
2426                         if (*e == '\0')
2427                                 {
2428                                 BIO_puts(io,text);
2429                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
2430                                 break;
2431                                 }
2432                         *e='\0';
2433
2434                         if (dot)
2435                                 {
2436                                 BIO_puts(io,text);
2437                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
2438                                 break;
2439                                 }
2440
2441                         if (*p == '/')
2442                                 {
2443                                 BIO_puts(io,text);
2444                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
2445                                 break;
2446                                 }
2447
2448 #if 0
2449                         /* append if a directory lookup */
2450                         if (e[-1] == '/')
2451                                 strcat(p,"index.html");
2452 #endif
2453
2454                         /* if a directory, do the index thang */
2455                         if (app_isdir(p)>0)
2456                                 {
2457 #if 0 /* must check buffer size */
2458                                 strcat(p,"/index.html");
2459 #else
2460                                 BIO_puts(io,text);
2461                                 BIO_printf(io,"'%s' is a directory\r\n",p);
2462                                 break;
2463 #endif
2464                                 }
2465
2466                         if ((file=BIO_new_file(p,"r")) == NULL)
2467                                 {
2468                                 BIO_puts(io,text);
2469                                 BIO_printf(io,"Error opening '%s'\r\n",p);
2470                                 ERR_print_errors(io);
2471                                 break;
2472                                 }
2473
2474                         if (!s_quiet)
2475                                 BIO_printf(bio_err,"FILE:%s\n",p);
2476
2477                         if (www == 2)
2478                                 {
2479                                 i=strlen(p);
2480                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
2481                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
2482                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
2483                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2484                                 else
2485                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
2486                                 }
2487                         /* send the file */
2488                         total_bytes=0;
2489                         for (;;)
2490                                 {
2491                                 i=BIO_read(file,buf,bufsize);
2492                                 if (i <= 0) break;
2493
2494 #ifdef RENEG
2495                                 total_bytes+=i;
2496                                 fprintf(stderr,"%d\n",i);
2497                                 if (total_bytes > 3*1024)
2498                                         {
2499                                         total_bytes=0;
2500                                         fprintf(stderr,"RENEGOTIATE\n");
2501                                         SSL_renegotiate(con);
2502                                         }
2503 #endif
2504
2505                                 for (j=0; j<i; )
2506                                         {
2507 #ifdef RENEG
2508 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
2509 #endif
2510                                         k=BIO_write(io,&(buf[j]),i-j);
2511                                         if (k <= 0)
2512                                                 {
2513                                                 if (!BIO_should_retry(io))
2514                                                         goto write_error;
2515                                                 else
2516                                                         {
2517                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
2518                                                         }
2519                                                 }
2520                                         else
2521                                                 {
2522                                                 j+=k;
2523                                                 }
2524                                         }
2525                                 }
2526 write_error:
2527                         BIO_free(file);
2528                         break;
2529                         }
2530                 }
2531
2532         for (;;)
2533                 {
2534                 i=(int)BIO_flush(io);
2535                 if (i <= 0)
2536                         {
2537                         if (!BIO_should_retry(io))
2538                                 break;
2539                         }
2540                 else
2541                         break;
2542                 }
2543 end:
2544 #if 1
2545         /* make sure we re-use sessions */
2546         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2547 #else
2548         /* This kills performance */
2549 /*      SSL_shutdown(con); A shutdown gets sent in the
2550  *      BIO_free_all(io) procession */
2551 #endif
2552
2553 err:
2554
2555         if (ret >= 0)
2556                 BIO_printf(bio_s_out,"ACCEPT\n");
2557
2558         if (buf != NULL) OPENSSL_free(buf);
2559         if (io != NULL) BIO_free_all(io);
2560 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
2561         return(ret);
2562         }
2563
2564 #ifndef OPENSSL_NO_RSA
2565 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
2566         {
2567         BIGNUM *bn = NULL;
2568         static RSA *rsa_tmp=NULL;
2569
2570         if (!rsa_tmp && ((bn = BN_new()) == NULL))
2571                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
2572         if (!rsa_tmp && bn)
2573                 {
2574                 if (!s_quiet)
2575                         {
2576                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
2577                         (void)BIO_flush(bio_err);
2578                         }
2579                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
2580                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
2581                         {
2582                         if(rsa_tmp) RSA_free(rsa_tmp);
2583                         rsa_tmp = NULL;
2584                         }
2585                 if (!s_quiet)
2586                         {
2587                         BIO_printf(bio_err,"\n");
2588                         (void)BIO_flush(bio_err);
2589                         }
2590                 BN_free(bn);
2591                 }
2592         return(rsa_tmp);
2593         }
2594 #endif
2595
2596 #define MAX_SESSION_ID_ATTEMPTS 10
2597 static int generate_session_id(const SSL *ssl, unsigned char *id,
2598                                 unsigned int *id_len)
2599         {
2600         unsigned int count = 0;
2601         do      {
2602                 RAND_pseudo_bytes(id, *id_len);
2603                 /* Prefix the session_id with the required prefix. NB: If our
2604                  * prefix is too long, clip it - but there will be worse effects
2605                  * anyway, eg. the server could only possibly create 1 session
2606                  * ID (ie. the prefix!) so all future session negotiations will
2607                  * fail due to conflicts. */
2608                 memcpy(id, session_id_prefix,
2609                         (strlen(session_id_prefix) < *id_len) ?
2610                         strlen(session_id_prefix) : *id_len);
2611                 }
2612         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
2613                 (++count < MAX_SESSION_ID_ATTEMPTS));
2614         if(count >= MAX_SESSION_ID_ATTEMPTS)
2615                 return 0;
2616         return 1;
2617         }