Add debug target, remove cast, note possible bug.
[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) 1998-2001 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 /* Until the key-gen callbacks are modified to use newer prototypes, we allow
118  * deprecated functions for openssl-internal code */
119 #ifdef OPENSSL_NO_DEPRECATED
120 #undef OPENSSL_NO_DEPRECATED
121 #endif
122
123 #include <assert.h>
124 #include <stdio.h>
125 #include <stdlib.h>
126 #include <string.h>
127
128 #include <sys/stat.h>
129 #include <openssl/e_os2.h>
130 #ifdef OPENSSL_NO_STDIO
131 #define APPS_WIN16
132 #endif
133
134 #if !defined(OPENSSL_SYS_NETWARE)  /* conflicts with winsock2 stuff on netware */
135 #include <sys/types.h>
136 #endif
137
138 /* With IPv6, it looks like Digital has mixed up the proper order of
139    recursive header file inclusion, resulting in the compiler complaining
140    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
141    is needed to have fileno() declared correctly...  So let's define u_int */
142 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
143 #define __U_INT
144 typedef unsigned int u_int;
145 #endif
146
147 #include <openssl/lhash.h>
148 #include <openssl/bn.h>
149 #define USE_SOCKETS
150 #include "apps.h"
151 #include <openssl/err.h>
152 #include <openssl/pem.h>
153 #include <openssl/x509.h>
154 #include <openssl/ssl.h>
155 #include <openssl/rand.h>
156 #include "s_apps.h"
157
158 #ifdef OPENSSL_SYS_WINCE
159 /* Windows CE incorrectly defines fileno as returning void*, so to avoid problems below... */
160 #ifdef fileno
161 #undef fileno
162 #endif
163 #define fileno(a) (int)_fileno(a)
164 #endif
165
166 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
167 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
168 #undef FIONBIO
169 #endif
170
171 #ifndef OPENSSL_NO_RSA
172 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
173 #endif
174 static int sv_body(char *hostname, int s, unsigned char *context);
175 static int www_body(char *hostname, int s, unsigned char *context);
176 static void close_accept_socket(void );
177 static void sv_usage(void);
178 static int init_ssl_connection(SSL *s);
179 static void print_stats(BIO *bp,SSL_CTX *ctx);
180 static int generate_session_id(const SSL *ssl, unsigned char *id,
181                                 unsigned int *id_len);
182 #ifndef OPENSSL_NO_DH
183 static DH *load_dh_param(const char *dhfile);
184 static DH *get_dh512(void);
185 #endif
186
187 #ifdef MONOLITH
188 static void s_server_init(void);
189 #endif
190
191 #ifndef S_ISDIR
192 # if defined(_S_IFMT) && defined(_S_IFDIR)
193 #  define S_ISDIR(a)    (((a) & _S_IFMT) == _S_IFDIR)
194 # else
195 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
196 # endif
197 #endif
198
199 #ifndef OPENSSL_NO_DH
200 static unsigned char dh512_p[]={
201         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
202         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
203         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
204         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
205         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
206         0x47,0x74,0xE8,0x33,
207         };
208 static unsigned char dh512_g[]={
209         0x02,
210         };
211
212 static DH *get_dh512(void)
213         {
214         DH *dh=NULL;
215
216         if ((dh=DH_new()) == NULL) return(NULL);
217         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
218         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
219         if ((dh->p == NULL) || (dh->g == NULL))
220                 return(NULL);
221         return(dh);
222         }
223 #endif
224
225
226 /* static int load_CA(SSL_CTX *ctx, char *file);*/
227
228 #undef BUFSIZZ
229 #define BUFSIZZ 16*1024
230 static int bufsize=BUFSIZZ;
231 static int accept_socket= -1;
232
233 #define TEST_CERT       "server.pem"
234 #undef PROG
235 #define PROG            s_server_main
236
237 extern int verify_depth;
238
239 static char *cipher=NULL;
240 static int s_server_verify=SSL_VERIFY_NONE;
241 static int s_server_session_id_context = 1; /* anything will do */
242 static const char *s_cert_file=TEST_CERT,*s_key_file=NULL;
243 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
244 #ifdef FIONBIO
245 static int s_nbio=0;
246 #endif
247 static int s_nbio_test=0;
248 int s_crlf=0;
249 static SSL_CTX *ctx=NULL;
250 static int www=0;
251
252 static BIO *bio_s_out=NULL;
253 static int s_debug=0;
254 static int s_msg=0;
255 static int s_quiet=0;
256
257 static int hack=0;
258 #ifndef OPENSSL_NO_ENGINE
259 static char *engine_id=NULL;
260 #endif
261 static const char *session_id_prefix=NULL;
262
263 #ifdef MONOLITH
264 static void s_server_init(void)
265         {
266         accept_socket=-1;
267         cipher=NULL;
268         s_server_verify=SSL_VERIFY_NONE;
269         s_dcert_file=NULL;
270         s_dkey_file=NULL;
271         s_cert_file=TEST_CERT;
272         s_key_file=NULL;
273 #ifdef FIONBIO
274         s_nbio=0;
275 #endif
276         s_nbio_test=0;
277         ctx=NULL;
278         www=0;
279
280         bio_s_out=NULL;
281         s_debug=0;
282         s_msg=0;
283         s_quiet=0;
284         hack=0;
285 #ifndef OPENSSL_NO_ENGINE
286         engine_id=NULL;
287 #endif
288         }
289 #endif
290
291 static void sv_usage(void)
292         {
293         BIO_printf(bio_err,"usage: s_server [args ...]\n");
294         BIO_printf(bio_err,"\n");
295         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
296         BIO_printf(bio_err," -context arg  - set session ID context\n");
297         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
298         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
299         BIO_printf(bio_err," -cert arg     - certificate file to use\n");
300         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
301         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
302         BIO_printf(bio_err," -key arg      - Private Key file to use, in cert file if\n");
303         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
304         BIO_printf(bio_err," -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
305         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
306         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
307         BIO_printf(bio_err," -dcertform x  - second certificate format (PEM or DER) PEM default\n");
308         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
309         BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
310         BIO_printf(bio_err," -dpass arg    - second private key file pass phrase source\n");
311         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
312         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
313 #ifndef OPENSSL_NO_ECDH
314         BIO_printf(bio_err," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
315                            "                 Use \"openssl ecparam -list_curves\" for all names\n" \
316                            "                 (default is sect163r2).\n");
317 #endif
318 #ifdef FIONBIO
319         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
320 #endif
321         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
322         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
323         BIO_printf(bio_err," -debug        - Print more output\n");
324         BIO_printf(bio_err," -msg          - Show protocol messages\n");
325         BIO_printf(bio_err," -state        - Print the SSL states\n");
326         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
327         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
328         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
329         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
330         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
331         BIO_printf(bio_err," -quiet        - No server output\n");
332         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
333         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
334         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
335         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
336         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
337         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
338         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
339 #ifndef OPENSSL_NO_DH
340         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
341 #endif
342 #ifndef OPENSSL_NO_ECDH
343         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
344 #endif
345         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
346         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
347         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
348         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
349         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
350 #ifndef OPENSSL_NO_ENGINE
351         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
352 #endif
353         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
354         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
355         }
356
357 static int local_argc=0;
358 static char **local_argv;
359
360 #ifdef CHARSET_EBCDIC
361 static int ebcdic_new(BIO *bi);
362 static int ebcdic_free(BIO *a);
363 static int ebcdic_read(BIO *b, char *out, int outl);
364 static int ebcdic_write(BIO *b, const char *in, int inl);
365 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
366 static int ebcdic_gets(BIO *bp, char *buf, int size);
367 static int ebcdic_puts(BIO *bp, const char *str);
368
369 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
370 static BIO_METHOD methods_ebcdic=
371         {
372         BIO_TYPE_EBCDIC_FILTER,
373         "EBCDIC/ASCII filter",
374         ebcdic_write,
375         ebcdic_read,
376         ebcdic_puts,
377         ebcdic_gets,
378         ebcdic_ctrl,
379         ebcdic_new,
380         ebcdic_free,
381         };
382
383 typedef struct
384 {
385         size_t  alloced;
386         char    buff[1];
387 } EBCDIC_OUTBUFF;
388
389 BIO_METHOD *BIO_f_ebcdic_filter()
390 {
391         return(&methods_ebcdic);
392 }
393
394 static int ebcdic_new(BIO *bi)
395 {
396         EBCDIC_OUTBUFF *wbuf;
397
398         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
399         wbuf->alloced = 1024;
400         wbuf->buff[0] = '\0';
401
402         bi->ptr=(char *)wbuf;
403         bi->init=1;
404         bi->flags=0;
405         return(1);
406 }
407
408 static int ebcdic_free(BIO *a)
409 {
410         if (a == NULL) return(0);
411         if (a->ptr != NULL)
412                 OPENSSL_free(a->ptr);
413         a->ptr=NULL;
414         a->init=0;
415         a->flags=0;
416         return(1);
417 }
418         
419 static int ebcdic_read(BIO *b, char *out, int outl)
420 {
421         int ret=0;
422
423         if (out == NULL || outl == 0) return(0);
424         if (b->next_bio == NULL) return(0);
425
426         ret=BIO_read(b->next_bio,out,outl);
427         if (ret > 0)
428                 ascii2ebcdic(out,out,ret);
429         return(ret);
430 }
431
432 static int ebcdic_write(BIO *b, const char *in, int inl)
433 {
434         EBCDIC_OUTBUFF *wbuf;
435         int ret=0;
436         int num;
437         unsigned char n;
438
439         if ((in == NULL) || (inl <= 0)) return(0);
440         if (b->next_bio == NULL) return(0);
441
442         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
443
444         if (inl > (num = wbuf->alloced))
445         {
446                 num = num + num;  /* double the size */
447                 if (num < inl)
448                         num = inl;
449                 OPENSSL_free(wbuf);
450                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
451
452                 wbuf->alloced = num;
453                 wbuf->buff[0] = '\0';
454
455                 b->ptr=(char *)wbuf;
456         }
457
458         ebcdic2ascii(wbuf->buff, in, inl);
459
460         ret=BIO_write(b->next_bio, wbuf->buff, inl);
461
462         return(ret);
463 }
464
465 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
466 {
467         long ret;
468
469         if (b->next_bio == NULL) return(0);
470         switch (cmd)
471         {
472         case BIO_CTRL_DUP:
473                 ret=0L;
474                 break;
475         default:
476                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
477                 break;
478         }
479         return(ret);
480 }
481
482 static int ebcdic_gets(BIO *bp, char *buf, int size)
483 {
484         int i, ret=0;
485         if (bp->next_bio == NULL) return(0);
486 /*      return(BIO_gets(bp->next_bio,buf,size));*/
487         for (i=0; i<size-1; ++i)
488         {
489                 ret = ebcdic_read(bp,&buf[i],1);
490                 if (ret <= 0)
491                         break;
492                 else if (buf[i] == '\n')
493                 {
494                         ++i;
495                         break;
496                 }
497         }
498         if (i < size)
499                 buf[i] = '\0';
500         return (ret < 0 && i == 0) ? ret : i;
501 }
502
503 static int ebcdic_puts(BIO *bp, const char *str)
504 {
505         if (bp->next_bio == NULL) return(0);
506         return ebcdic_write(bp, str, strlen(str));
507 }
508 #endif
509
510 int MAIN(int, char **);
511
512 int MAIN(int argc, char *argv[])
513         {
514         X509_STORE *store = NULL;
515         int vflags = 0;
516         short port=PORT;
517         char *CApath=NULL,*CAfile=NULL;
518         char *context = NULL;
519         char *dhfile = NULL;
520         char *named_curve = NULL;
521         int badop=0,bugs=0;
522         int ret=1;
523         int off=0;
524         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
525         int state=0;
526         SSL_METHOD *meth=NULL;
527 #ifndef OPENSSL_NO_ENGINE
528         ENGINE *e=NULL;
529 #endif
530         char *inrand=NULL;
531         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
532         char *passarg = NULL, *pass = NULL;
533         char *dpassarg = NULL, *dpass = NULL;
534         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
535         X509 *s_cert = NULL, *s_dcert = NULL;
536         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
537
538 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
539         meth=SSLv23_server_method();
540 #elif !defined(OPENSSL_NO_SSL3)
541         meth=SSLv3_server_method();
542 #elif !defined(OPENSSL_NO_SSL2)
543         meth=SSLv2_server_method();
544 #endif
545
546         local_argc=argc;
547         local_argv=argv;
548
549         apps_startup();
550 #ifdef MONOLITH
551         s_server_init();
552 #endif
553
554         if (bio_err == NULL)
555                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
556
557         if (!load_config(bio_err, NULL))
558                 goto end;
559
560         verify_depth=0;
561 #ifdef FIONBIO
562         s_nbio=0;
563 #endif
564         s_nbio_test=0;
565
566         argc--;
567         argv++;
568
569         while (argc >= 1)
570                 {
571                 if      ((strcmp(*argv,"-port") == 0) ||
572                          (strcmp(*argv,"-accept") == 0))
573                         {
574                         if (--argc < 1) goto bad;
575                         if (!extract_port(*(++argv),&port))
576                                 goto bad;
577                         }
578                 else if (strcmp(*argv,"-verify") == 0)
579                         {
580                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
581                         if (--argc < 1) goto bad;
582                         verify_depth=atoi(*(++argv));
583                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
584                         }
585                 else if (strcmp(*argv,"-Verify") == 0)
586                         {
587                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
588                                 SSL_VERIFY_CLIENT_ONCE;
589                         if (--argc < 1) goto bad;
590                         verify_depth=atoi(*(++argv));
591                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
592                         }
593                 else if (strcmp(*argv,"-context") == 0)
594                         {
595                         if (--argc < 1) goto bad;
596                         context= *(++argv);
597                         }
598                 else if (strcmp(*argv,"-cert") == 0)
599                         {
600                         if (--argc < 1) goto bad;
601                         s_cert_file= *(++argv);
602                         }
603                 else if (strcmp(*argv,"-certform") == 0)
604                         {
605                         if (--argc < 1) goto bad;
606                         s_cert_format = str2fmt(*(++argv));
607                         }
608                 else if (strcmp(*argv,"-key") == 0)
609                         {
610                         if (--argc < 1) goto bad;
611                         s_key_file= *(++argv);
612                         }
613                 else if (strcmp(*argv,"-keyform") == 0)
614                         {
615                         if (--argc < 1) goto bad;
616                         s_key_format = str2fmt(*(++argv));
617                         }
618                 else if (strcmp(*argv,"-pass") == 0)
619                         {
620                         if (--argc < 1) goto bad;
621                         passarg = *(++argv);
622                         }
623                 else if (strcmp(*argv,"-dhparam") == 0)
624                         {
625                         if (--argc < 1) goto bad;
626                         dhfile = *(++argv);
627                         }
628 #ifndef OPENSSL_NO_ECDH         
629                 else if (strcmp(*argv,"-named_curve") == 0)
630                         {
631                         if (--argc < 1) goto bad;
632                         named_curve = *(++argv);
633                         }
634 #endif
635                 else if (strcmp(*argv,"-dcertform") == 0)
636                         {
637                         if (--argc < 1) goto bad;
638                         s_dcert_format = str2fmt(*(++argv));
639                         }
640                 else if (strcmp(*argv,"-dcert") == 0)
641                         {
642                         if (--argc < 1) goto bad;
643                         s_dcert_file= *(++argv);
644                         }
645                 else if (strcmp(*argv,"-dkeyform") == 0)
646                         {
647                         if (--argc < 1) goto bad;
648                         s_dkey_format = str2fmt(*(++argv));
649                         }
650                 else if (strcmp(*argv,"-dpass") == 0)
651                         {
652                         if (--argc < 1) goto bad;
653                         dpassarg = *(++argv);
654                         }
655                 else if (strcmp(*argv,"-dkey") == 0)
656                         {
657                         if (--argc < 1) goto bad;
658                         s_dkey_file= *(++argv);
659                         }
660                 else if (strcmp(*argv,"-nocert") == 0)
661                         {
662                         nocert=1;
663                         }
664                 else if (strcmp(*argv,"-CApath") == 0)
665                         {
666                         if (--argc < 1) goto bad;
667                         CApath= *(++argv);
668                         }
669                 else if (strcmp(*argv,"-crl_check") == 0)
670                         {
671                         vflags |= X509_V_FLAG_CRL_CHECK;
672                         }
673                 else if (strcmp(*argv,"-crl_check") == 0)
674                         {
675                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
676                         }
677                 else if (strcmp(*argv,"-serverpref") == 0)
678                         { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
679                 else if (strcmp(*argv,"-cipher") == 0)
680                         {
681                         if (--argc < 1) goto bad;
682                         cipher= *(++argv);
683                         }
684                 else if (strcmp(*argv,"-CAfile") == 0)
685                         {
686                         if (--argc < 1) goto bad;
687                         CAfile= *(++argv);
688                         }
689 #ifdef FIONBIO  
690                 else if (strcmp(*argv,"-nbio") == 0)
691                         { s_nbio=1; }
692 #endif
693                 else if (strcmp(*argv,"-nbio_test") == 0)
694                         {
695 #ifdef FIONBIO  
696                         s_nbio=1;
697 #endif
698                         s_nbio_test=1;
699                         }
700                 else if (strcmp(*argv,"-debug") == 0)
701                         { s_debug=1; }
702                 else if (strcmp(*argv,"-msg") == 0)
703                         { s_msg=1; }
704                 else if (strcmp(*argv,"-hack") == 0)
705                         { hack=1; }
706                 else if (strcmp(*argv,"-state") == 0)
707                         { state=1; }
708                 else if (strcmp(*argv,"-crlf") == 0)
709                         { s_crlf=1; }
710                 else if (strcmp(*argv,"-quiet") == 0)
711                         { s_quiet=1; }
712                 else if (strcmp(*argv,"-bugs") == 0)
713                         { bugs=1; }
714                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
715                         { no_tmp_rsa=1; }
716                 else if (strcmp(*argv,"-no_dhe") == 0)
717                         { no_dhe=1; }
718                 else if (strcmp(*argv,"-no_ecdhe") == 0)
719                         { no_ecdhe=1; }
720                 else if (strcmp(*argv,"-www") == 0)
721                         { www=1; }
722                 else if (strcmp(*argv,"-WWW") == 0)
723                         { www=2; }
724                 else if (strcmp(*argv,"-HTTP") == 0)
725                         { www=3; }
726                 else if (strcmp(*argv,"-no_ssl2") == 0)
727                         { off|=SSL_OP_NO_SSLv2; }
728                 else if (strcmp(*argv,"-no_ssl3") == 0)
729                         { off|=SSL_OP_NO_SSLv3; }
730                 else if (strcmp(*argv,"-no_tls1") == 0)
731                         { off|=SSL_OP_NO_TLSv1; }
732 #ifndef OPENSSL_NO_SSL2
733                 else if (strcmp(*argv,"-ssl2") == 0)
734                         { meth=SSLv2_server_method(); }
735 #endif
736 #ifndef OPENSSL_NO_SSL3
737                 else if (strcmp(*argv,"-ssl3") == 0)
738                         { meth=SSLv3_server_method(); }
739 #endif
740 #ifndef OPENSSL_NO_TLS1
741                 else if (strcmp(*argv,"-tls1") == 0)
742                         { meth=TLSv1_server_method(); }
743 #endif
744                 else if (strcmp(*argv, "-id_prefix") == 0)
745                         {
746                         if (--argc < 1) goto bad;
747                         session_id_prefix = *(++argv);
748                         }
749 #ifndef OPENSSL_NO_ENGINE
750                 else if (strcmp(*argv,"-engine") == 0)
751                         {
752                         if (--argc < 1) goto bad;
753                         engine_id= *(++argv);
754                         }
755 #endif
756                 else if (strcmp(*argv,"-rand") == 0)
757                         {
758                         if (--argc < 1) goto bad;
759                         inrand= *(++argv);
760                         }
761                 else
762                         {
763                         BIO_printf(bio_err,"unknown option %s\n",*argv);
764                         badop=1;
765                         break;
766                         }
767                 argc--;
768                 argv++;
769                 }
770         if (badop)
771                 {
772 bad:
773                 sv_usage();
774                 goto end;
775                 }
776
777         SSL_load_error_strings();
778         OpenSSL_add_ssl_algorithms();
779
780 #ifndef OPENSSL_NO_ENGINE
781         e = setup_engine(bio_err, engine_id, 1);
782 #endif
783
784         if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
785                 {
786                 BIO_printf(bio_err, "Error getting password\n");
787                 goto end;
788                 }
789
790
791         if (s_key_file == NULL)
792                 s_key_file = s_cert_file;
793
794         s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
795                        "server certificate private key file");
796         if (!s_key)
797                 {
798                 ERR_print_errors(bio_err);
799                 goto end;
800                 }
801
802         s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
803                         NULL, e, "server certificate file");
804
805         if (!s_cert)
806                 {
807                 ERR_print_errors(bio_err);
808                 goto end;
809                 }
810
811         if (s_dcert_file)
812                 {
813
814                 if (s_dkey_file == NULL)
815                         s_dkey_file = s_dcert_file;
816
817                 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
818                                 0, dpass, e,
819                                "second certificate private key file");
820                 if (!s_dkey)
821                         {
822                         ERR_print_errors(bio_err);
823                         goto end;
824                         }
825
826                 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
827                                 NULL, e, "second server certificate file");
828
829                 if (!s_dcert)
830                         {
831                         ERR_print_errors(bio_err);
832                         goto end;
833                         }
834
835                 }
836
837         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
838                 && !RAND_status())
839                 {
840                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
841                 }
842         if (inrand != NULL)
843                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
844                         app_RAND_load_files(inrand));
845
846         if (bio_s_out == NULL)
847                 {
848                 if (s_quiet && !s_debug && !s_msg)
849                         {
850                         bio_s_out=BIO_new(BIO_s_null());
851                         }
852                 else
853                         {
854                         if (bio_s_out == NULL)
855                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
856                         }
857                 }
858
859 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
860         if (nocert)
861 #endif
862                 {
863                 s_cert_file=NULL;
864                 s_key_file=NULL;
865                 s_dcert_file=NULL;
866                 s_dkey_file=NULL;
867                 }
868
869         ctx=SSL_CTX_new(meth);
870         if (ctx == NULL)
871                 {
872                 ERR_print_errors(bio_err);
873                 goto end;
874                 }
875         if (session_id_prefix)
876                 {
877                 if(strlen(session_id_prefix) >= 32)
878                         BIO_printf(bio_err,
879 "warning: id_prefix is too long, only one new session will be possible\n");
880                 else if(strlen(session_id_prefix) >= 16)
881                         BIO_printf(bio_err,
882 "warning: id_prefix is too long if you use SSLv2\n");
883                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
884                         {
885                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
886                         ERR_print_errors(bio_err);
887                         goto end;
888                         }
889                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
890                 }
891         SSL_CTX_set_quiet_shutdown(ctx,1);
892         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
893         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
894         SSL_CTX_set_options(ctx,off);
895
896         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
897
898         SSL_CTX_sess_set_cache_size(ctx,128);
899
900 #if 0
901         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
902 #endif
903
904 #if 0
905         if (s_cert_file == NULL)
906                 {
907                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
908                 goto end;
909                 }
910 #endif
911
912         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
913                 (!SSL_CTX_set_default_verify_paths(ctx)))
914                 {
915                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
916                 ERR_print_errors(bio_err);
917                 /* goto end; */
918                 }
919         store = SSL_CTX_get_cert_store(ctx);
920         X509_STORE_set_flags(store, vflags);
921
922 #ifndef OPENSSL_NO_DH
923         if (!no_dhe)
924                 {
925                 DH *dh=NULL;
926
927                 if (dhfile)
928                         dh = load_dh_param(dhfile);
929                 else if (s_cert_file)
930                         dh = load_dh_param(s_cert_file);
931
932                 if (dh != NULL)
933                         {
934                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
935                         }
936                 else
937                         {
938                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
939                         dh=get_dh512();
940                         }
941                 (void)BIO_flush(bio_s_out);
942
943                 SSL_CTX_set_tmp_dh(ctx,dh);
944                 DH_free(dh);
945                 }
946 #endif
947
948 #ifndef OPENSSL_NO_ECDH
949         if (!no_ecdhe)
950                 {
951                 EC_KEY *ecdh=NULL;
952
953                 ecdh = EC_KEY_new();
954                 if (ecdh == NULL)
955                         {
956                         BIO_printf(bio_err,"Could not create ECDH struct.\n");
957                         goto end;
958                         }
959
960                 if (named_curve)
961                         {
962                         int nid = OBJ_sn2nid(named_curve);
963
964                         if (nid == 0)
965                                 {
966                                 BIO_printf(bio_err, "unknown curve name (%s)\n", 
967                                         named_curve);
968                                 goto end;
969                                 }
970
971                         ecdh->group = EC_GROUP_new_by_nid(nid);
972                         if (ecdh->group == NULL)
973                                 {
974                                 BIO_printf(bio_err, "unable to create curve (%s)\n", 
975                                         named_curve);
976                                 goto end;
977                                 }
978                         }
979
980                 if (ecdh->group != NULL)
981                         {
982                         BIO_printf(bio_s_out,"Setting temp ECDH parameters\n");
983                         }
984                 else
985                         {
986                         BIO_printf(bio_s_out,"Using default temp ECDH parameters\n");
987                         ecdh->group=EC_GROUP_new_by_nid(NID_sect163r2);
988                         if (ecdh->group == NULL) 
989                                 {
990                                 BIO_printf(bio_err, "unable to create curve (sect163r2)\n");
991                                 goto end;
992                                 }
993                         }
994                 (void)BIO_flush(bio_s_out);
995
996                 SSL_CTX_set_tmp_ecdh(ctx,ecdh);
997                 EC_KEY_free(ecdh);
998                 }
999 #endif
1000         
1001         if (!set_cert_key_stuff(ctx,s_cert,s_key))
1002                 goto end;
1003         if (s_dcert != NULL)
1004                 {
1005                 if (!set_cert_key_stuff(ctx,s_dcert,s_dkey))
1006                         goto end;
1007                 }
1008
1009 #ifndef OPENSSL_NO_RSA
1010 #if 1
1011         if (!no_tmp_rsa)
1012                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
1013 #else
1014         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
1015                 {
1016                 RSA *rsa;
1017
1018                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
1019                 BIO_flush(bio_s_out);
1020
1021                 rsa=RSA_generate_key(512,RSA_F4,NULL);
1022
1023                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
1024                         {
1025                         ERR_print_errors(bio_err);
1026                         goto end;
1027                         }
1028                 RSA_free(rsa);
1029                 BIO_printf(bio_s_out,"\n");
1030                 }
1031 #endif
1032 #endif
1033
1034         if (cipher != NULL)
1035                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
1036                 BIO_printf(bio_err,"error setting cipher list\n");
1037                 ERR_print_errors(bio_err);
1038                 goto end;
1039         }
1040         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
1041         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
1042                 sizeof s_server_session_id_context);
1043
1044         if (CAfile != NULL)
1045             SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
1046
1047         BIO_printf(bio_s_out,"ACCEPT\n");
1048         if (www)
1049                 do_server(port,&accept_socket,www_body, context);
1050         else
1051                 do_server(port,&accept_socket,sv_body, context);
1052         print_stats(bio_s_out,ctx);
1053         ret=0;
1054 end:
1055         if (ctx != NULL) SSL_CTX_free(ctx);
1056         if (s_cert)
1057                 X509_free(s_cert);
1058         if (s_dcert)
1059                 X509_free(s_dcert);
1060         if (s_key)
1061                 EVP_PKEY_free(s_key);
1062         if (s_dkey)
1063                 EVP_PKEY_free(s_dkey);
1064         if (pass)
1065                 OPENSSL_free(pass);
1066         if (dpass)
1067                 OPENSSL_free(dpass);
1068         if (bio_s_out != NULL)
1069                 {
1070                 BIO_free(bio_s_out);
1071                 bio_s_out=NULL;
1072                 }
1073         apps_shutdown();
1074         OPENSSL_EXIT(ret);
1075         }
1076
1077 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
1078         {
1079         BIO_printf(bio,"%4ld items in the session cache\n",
1080                 SSL_CTX_sess_number(ssl_ctx));
1081         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
1082                 SSL_CTX_sess_connect(ssl_ctx));
1083         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
1084                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
1085         BIO_printf(bio,"%4ld client connects that finished\n",
1086                 SSL_CTX_sess_connect_good(ssl_ctx));
1087         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
1088                 SSL_CTX_sess_accept(ssl_ctx));
1089         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
1090                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
1091         BIO_printf(bio,"%4ld server accepts that finished\n",
1092                 SSL_CTX_sess_accept_good(ssl_ctx));
1093         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
1094         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
1095         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
1096         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
1097         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
1098                 SSL_CTX_sess_cache_full(ssl_ctx),
1099                 SSL_CTX_sess_get_cache_size(ssl_ctx));
1100         }
1101
1102 static int sv_body(char *hostname, int s, unsigned char *context)
1103         {
1104         char *buf=NULL;
1105         fd_set readfds;
1106         int ret=1,width;
1107         int k,i;
1108         unsigned long l;
1109         SSL *con=NULL;
1110         BIO *sbio;
1111 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
1112         struct timeval tv;
1113 #endif
1114
1115         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
1116                 {
1117                 BIO_printf(bio_err,"out of memory\n");
1118                 goto err;
1119                 }
1120 #ifdef FIONBIO  
1121         if (s_nbio)
1122                 {
1123                 unsigned long sl=1;
1124
1125                 if (!s_quiet)
1126                         BIO_printf(bio_err,"turning on non blocking io\n");
1127                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1128                         ERR_print_errors(bio_err);
1129                 }
1130 #endif
1131
1132         if (con == NULL) {
1133                 con=SSL_new(ctx);
1134 #ifndef OPENSSL_NO_KRB5
1135                 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
1136                         {
1137                         kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE,
1138                                                                 KRB5SVC);
1139                         kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB,
1140                                                                 KRB5KEYTAB);
1141                         }
1142 #endif  /* OPENSSL_NO_KRB5 */
1143                 if(context)
1144                       SSL_set_session_id_context(con, context,
1145                                                  strlen((char *)context));
1146         }
1147         SSL_clear(con);
1148
1149         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1150         if (s_nbio_test)
1151                 {
1152                 BIO *test;
1153
1154                 test=BIO_new(BIO_f_nbio_test());
1155                 sbio=BIO_push(test,sbio);
1156                 }
1157         SSL_set_bio(con,sbio,sbio);
1158         SSL_set_accept_state(con);
1159         /* SSL_set_fd(con,s); */
1160
1161         if (s_debug)
1162                 {
1163                 con->debug=1;
1164                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
1165                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1166                 }
1167         if (s_msg)
1168                 {
1169                 SSL_set_msg_callback(con, msg_cb);
1170                 SSL_set_msg_callback_arg(con, bio_s_out);
1171                 }
1172
1173         width=s+1;
1174         for (;;)
1175                 {
1176                 int read_from_terminal;
1177                 int read_from_sslcon;
1178
1179                 read_from_terminal = 0;
1180                 read_from_sslcon = SSL_pending(con);
1181
1182                 if (!read_from_sslcon)
1183                         {
1184                         FD_ZERO(&readfds);
1185 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)
1186                         FD_SET(fileno(stdin),&readfds);
1187 #endif
1188                         FD_SET(s,&readfds);
1189                         /* Note: under VMS with SOCKETSHR the second parameter is
1190                          * currently of type (int *) whereas under other systems
1191                          * it is (void *) if you don't have a cast it will choke
1192                          * the compiler: if you do have a cast then you can either
1193                          * go for (int *) or (void *).
1194                          */
1195 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
1196                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
1197                          * on sockets. As a workaround we timeout the select every
1198                          * second and check for any keypress. In a proper Windows
1199                          * application we wouldn't do this because it is inefficient.
1200                          */
1201                         tv.tv_sec = 1;
1202                         tv.tv_usec = 0;
1203                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
1204                         if((i < 0) || (!i && !_kbhit() ) )continue;
1205                         if(_kbhit())
1206                                 read_from_terminal = 1;
1207 #else
1208                         i=select(width,(void *)&readfds,NULL,NULL,NULL);
1209                         if (i <= 0) continue;
1210                         if (FD_ISSET(fileno(stdin),&readfds))
1211                                 read_from_terminal = 1;
1212 #endif
1213                         if (FD_ISSET(s,&readfds))
1214                                 read_from_sslcon = 1;
1215                         }
1216                 if (read_from_terminal)
1217                         {
1218                         if (s_crlf)
1219                                 {
1220                                 int j, lf_num;
1221
1222                                 i=read(fileno(stdin), buf, bufsize/2);
1223                                 lf_num = 0;
1224                                 /* both loops are skipped when i <= 0 */
1225                                 for (j = 0; j < i; j++)
1226                                         if (buf[j] == '\n')
1227                                                 lf_num++;
1228                                 for (j = i-1; j >= 0; j--)
1229                                         {
1230                                         buf[j+lf_num] = buf[j];
1231                                         if (buf[j] == '\n')
1232                                                 {
1233                                                 lf_num--;
1234                                                 i++;
1235                                                 buf[j+lf_num] = '\r';
1236                                                 }
1237                                         }
1238                                 assert(lf_num == 0);
1239                                 }
1240                         else
1241                                 i=read(fileno(stdin),buf,bufsize);
1242                         if (!s_quiet)
1243                                 {
1244                                 if ((i <= 0) || (buf[0] == 'Q'))
1245                                         {
1246                                         BIO_printf(bio_s_out,"DONE\n");
1247                                         SHUTDOWN(s);
1248                                         close_accept_socket();
1249                                         ret= -11;
1250                                         goto err;
1251                                         }
1252                                 if ((i <= 0) || (buf[0] == 'q'))
1253                                         {
1254                                         BIO_printf(bio_s_out,"DONE\n");
1255                                         SHUTDOWN(s);
1256         /*                              close_accept_socket();
1257                                         ret= -11;*/
1258                                         goto err;
1259                                         }
1260                                 if ((buf[0] == 'r') && 
1261                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1262                                         {
1263                                         SSL_renegotiate(con);
1264                                         i=SSL_do_handshake(con);
1265                                         printf("SSL_do_handshake -> %d\n",i);
1266                                         i=0; /*13; */
1267                                         continue;
1268                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
1269                                         }
1270                                 if ((buf[0] == 'R') &&
1271                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1272                                         {
1273                                         SSL_set_verify(con,
1274                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
1275                                         SSL_renegotiate(con);
1276                                         i=SSL_do_handshake(con);
1277                                         printf("SSL_do_handshake -> %d\n",i);
1278                                         i=0; /* 13; */
1279                                         continue;
1280                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
1281                                         }
1282                                 if (buf[0] == 'P')
1283                                         {
1284                                         static const char *str="Lets print some clear text\n";
1285                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
1286                                         }
1287                                 if (buf[0] == 'S')
1288                                         {
1289                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
1290                                         }
1291                                 }
1292 #ifdef CHARSET_EBCDIC
1293                         ebcdic2ascii(buf,buf,i);
1294 #endif
1295                         l=k=0;
1296                         for (;;)
1297                                 {
1298                                 /* should do a select for the write */
1299 #ifdef RENEG
1300 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
1301 #endif
1302                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
1303                                 switch (SSL_get_error(con,k))
1304                                         {
1305                                 case SSL_ERROR_NONE:
1306                                         break;
1307                                 case SSL_ERROR_WANT_WRITE:
1308                                 case SSL_ERROR_WANT_READ:
1309                                 case SSL_ERROR_WANT_X509_LOOKUP:
1310                                         BIO_printf(bio_s_out,"Write BLOCK\n");
1311                                         break;
1312                                 case SSL_ERROR_SYSCALL:
1313                                 case SSL_ERROR_SSL:
1314                                         BIO_printf(bio_s_out,"ERROR\n");
1315                                         ERR_print_errors(bio_err);
1316                                         ret=1;
1317                                         goto err;
1318                                         /* break; */
1319                                 case SSL_ERROR_ZERO_RETURN:
1320                                         BIO_printf(bio_s_out,"DONE\n");
1321                                         ret=1;
1322                                         goto err;
1323                                         }
1324                                 l+=k;
1325                                 i-=k;
1326                                 if (i <= 0) break;
1327                                 }
1328                         }
1329                 if (read_from_sslcon)
1330                         {
1331                         if (!SSL_is_init_finished(con))
1332                                 {
1333                                 i=init_ssl_connection(con);
1334                                 
1335                                 if (i < 0)
1336                                         {
1337                                         ret=0;
1338                                         goto err;
1339                                         }
1340                                 else if (i == 0)
1341                                         {
1342                                         ret=1;
1343                                         goto err;
1344                                         }
1345                                 }
1346                         else
1347                                 {
1348 again:  
1349                                 i=SSL_read(con,(char *)buf,bufsize);
1350                                 switch (SSL_get_error(con,i))
1351                                         {
1352                                 case SSL_ERROR_NONE:
1353 #ifdef CHARSET_EBCDIC
1354                                         ascii2ebcdic(buf,buf,i);
1355 #endif
1356                                         write(fileno(stdout),buf,
1357                                                 (unsigned int)i);
1358                                         if (SSL_pending(con)) goto again;
1359                                         break;
1360                                 case SSL_ERROR_WANT_WRITE:
1361                                 case SSL_ERROR_WANT_READ:
1362                                 case SSL_ERROR_WANT_X509_LOOKUP:
1363                                         BIO_printf(bio_s_out,"Read BLOCK\n");
1364                                         break;
1365                                 case SSL_ERROR_SYSCALL:
1366                                 case SSL_ERROR_SSL:
1367                                         BIO_printf(bio_s_out,"ERROR\n");
1368                                         ERR_print_errors(bio_err);
1369                                         ret=1;
1370                                         goto err;
1371                                 case SSL_ERROR_ZERO_RETURN:
1372                                         BIO_printf(bio_s_out,"DONE\n");
1373                                         ret=1;
1374                                         goto err;
1375                                         }
1376                                 }
1377                         }
1378                 }
1379 err:
1380         BIO_printf(bio_s_out,"shutting down SSL\n");
1381 #if 1
1382         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1383 #else
1384         SSL_shutdown(con);
1385 #endif
1386         if (con != NULL) SSL_free(con);
1387         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1388         if (buf != NULL)
1389                 {
1390                 OPENSSL_cleanse(buf,bufsize);
1391                 OPENSSL_free(buf);
1392                 }
1393         if (ret >= 0)
1394                 BIO_printf(bio_s_out,"ACCEPT\n");
1395         return(ret);
1396         }
1397
1398 static void close_accept_socket(void)
1399         {
1400         BIO_printf(bio_err,"shutdown accept socket\n");
1401         if (accept_socket >= 0)
1402                 {
1403                 SHUTDOWN2(accept_socket);
1404                 }
1405         }
1406
1407 static int init_ssl_connection(SSL *con)
1408         {
1409         int i;
1410         const char *str;
1411         X509 *peer;
1412         long verify_error;
1413         MS_STATIC char buf[BUFSIZ];
1414
1415         if ((i=SSL_accept(con)) <= 0)
1416                 {
1417                 if (BIO_sock_should_retry(i))
1418                         {
1419                         BIO_printf(bio_s_out,"DELAY\n");
1420                         return(1);
1421                         }
1422
1423                 BIO_printf(bio_err,"ERROR\n");
1424                 verify_error=SSL_get_verify_result(con);
1425                 if (verify_error != X509_V_OK)
1426                         {
1427                         BIO_printf(bio_err,"verify error:%s\n",
1428                                 X509_verify_cert_error_string(verify_error));
1429                         }
1430                 else
1431                         ERR_print_errors(bio_err);
1432                 return(0);
1433                 }
1434
1435         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1436
1437         peer=SSL_get_peer_certificate(con);
1438         if (peer != NULL)
1439                 {
1440                 BIO_printf(bio_s_out,"Client certificate\n");
1441                 PEM_write_bio_X509(bio_s_out,peer);
1442                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
1443                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1444                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
1445                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1446                 X509_free(peer);
1447                 }
1448
1449         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
1450                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1451         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1452         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1453         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1454         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1455                 TLS1_FLAGS_TLS_PADDING_BUG)
1456                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1457 #ifndef OPENSSL_NO_KRB5
1458         if (con->kssl_ctx->client_princ != NULL)
1459                 {
1460                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
1461                         con->kssl_ctx->client_princ);
1462                 }
1463 #endif /* OPENSSL_NO_KRB5 */
1464         return(1);
1465         }
1466
1467 #ifndef OPENSSL_NO_DH
1468 static DH *load_dh_param(const char *dhfile)
1469         {
1470         DH *ret=NULL;
1471         BIO *bio;
1472
1473         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
1474                 goto err;
1475         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1476 err:
1477         if (bio != NULL) BIO_free(bio);
1478         return(ret);
1479         }
1480 #endif
1481
1482 #if 0
1483 static int load_CA(SSL_CTX *ctx, char *file)
1484         {
1485         FILE *in;
1486         X509 *x=NULL;
1487
1488         if ((in=fopen(file,"r")) == NULL)
1489                 return(0);
1490
1491         for (;;)
1492                 {
1493                 if (PEM_read_X509(in,&x,NULL) == NULL)
1494                         break;
1495                 SSL_CTX_add_client_CA(ctx,x);
1496                 }
1497         if (x != NULL) X509_free(x);
1498         fclose(in);
1499         return(1);
1500         }
1501 #endif
1502
1503 static int www_body(char *hostname, int s, unsigned char *context)
1504         {
1505         char *buf=NULL;
1506         int ret=1;
1507         int i,j,k,blank,dot;
1508         struct stat st_buf;
1509         SSL *con;
1510         SSL_CIPHER *c;
1511         BIO *io,*ssl_bio,*sbio;
1512         long total_bytes;
1513
1514         buf=OPENSSL_malloc(bufsize);
1515         if (buf == NULL) return(0);
1516         io=BIO_new(BIO_f_buffer());
1517         ssl_bio=BIO_new(BIO_f_ssl());
1518         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1519
1520 #ifdef FIONBIO  
1521         if (s_nbio)
1522                 {
1523                 unsigned long sl=1;
1524
1525                 if (!s_quiet)
1526                         BIO_printf(bio_err,"turning on non blocking io\n");
1527                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1528                         ERR_print_errors(bio_err);
1529                 }
1530 #endif
1531
1532         /* lets make the output buffer a reasonable size */
1533         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1534
1535         if ((con=SSL_new(ctx)) == NULL) goto err;
1536 #ifndef OPENSSL_NO_KRB5
1537         if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
1538                 {
1539                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC);
1540                 kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB);
1541                 }
1542 #endif  /* OPENSSL_NO_KRB5 */
1543         if(context) SSL_set_session_id_context(con, context,
1544                                                strlen((char *)context));
1545
1546         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1547         if (s_nbio_test)
1548                 {
1549                 BIO *test;
1550
1551                 test=BIO_new(BIO_f_nbio_test());
1552                 sbio=BIO_push(test,sbio);
1553                 }
1554         SSL_set_bio(con,sbio,sbio);
1555         SSL_set_accept_state(con);
1556
1557         /* SSL_set_fd(con,s); */
1558         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1559         BIO_push(io,ssl_bio);
1560 #ifdef CHARSET_EBCDIC
1561         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1562 #endif
1563
1564         if (s_debug)
1565                 {
1566                 con->debug=1;
1567                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
1568                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1569                 }
1570         if (s_msg)
1571                 {
1572                 SSL_set_msg_callback(con, msg_cb);
1573                 SSL_set_msg_callback_arg(con, bio_s_out);
1574                 }
1575
1576         blank=0;
1577         for (;;)
1578                 {
1579                 if (hack)
1580                         {
1581                         i=SSL_accept(con);
1582
1583                         switch (SSL_get_error(con,i))
1584                                 {
1585                         case SSL_ERROR_NONE:
1586                                 break;
1587                         case SSL_ERROR_WANT_WRITE:
1588                         case SSL_ERROR_WANT_READ:
1589                         case SSL_ERROR_WANT_X509_LOOKUP:
1590                                 continue;
1591                         case SSL_ERROR_SYSCALL:
1592                         case SSL_ERROR_SSL:
1593                         case SSL_ERROR_ZERO_RETURN:
1594                                 ret=1;
1595                                 goto err;
1596                                 /* break; */
1597                                 }
1598
1599                         SSL_renegotiate(con);
1600                         SSL_write(con,NULL,0);
1601                         }
1602
1603                 i=BIO_gets(io,buf,bufsize-1);
1604                 if (i < 0) /* error */
1605                         {
1606                         if (!BIO_should_retry(io))
1607                                 {
1608                                 if (!s_quiet)
1609                                         ERR_print_errors(bio_err);
1610                                 goto err;
1611                                 }
1612                         else
1613                                 {
1614                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1615 #if defined(OPENSSL_SYS_NETWARE)
1616             delay(1000);
1617 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
1618                                 sleep(1);
1619 #endif
1620                                 continue;
1621                                 }
1622                         }
1623                 else if (i == 0) /* end of input */
1624                         {
1625                         ret=1;
1626                         goto end;
1627                         }
1628
1629                 /* else we have data */
1630                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1631                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1632                         {
1633                         char *p;
1634                         X509 *peer;
1635                         STACK_OF(SSL_CIPHER) *sk;
1636                         static const char *space="                          ";
1637
1638                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1639                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1640                         BIO_puts(io,"<pre>\n");
1641 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1642                         BIO_puts(io,"\n");
1643                         for (i=0; i<local_argc; i++)
1644                                 {
1645                                 BIO_puts(io,local_argv[i]);
1646                                 BIO_write(io," ",1);
1647                                 }
1648                         BIO_puts(io,"\n");
1649
1650                         /* The following is evil and should not really
1651                          * be done */
1652                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1653                         sk=SSL_get_ciphers(con);
1654                         j=sk_SSL_CIPHER_num(sk);
1655                         for (i=0; i<j; i++)
1656                                 {
1657                                 c=sk_SSL_CIPHER_value(sk,i);
1658                                 BIO_printf(io,"%-11s:%-25s",
1659                                         SSL_CIPHER_get_version(c),
1660                                         SSL_CIPHER_get_name(c));
1661                                 if ((((i+1)%2) == 0) && (i+1 != j))
1662                                         BIO_puts(io,"\n");
1663                                 }
1664                         BIO_puts(io,"\n");
1665                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1666                         if (p != NULL)
1667                                 {
1668                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1669                                 j=i=0;
1670                                 while (*p)
1671                                         {
1672                                         if (*p == ':')
1673                                                 {
1674                                                 BIO_write(io,space,26-j);
1675                                                 i++;
1676                                                 j=0;
1677                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1678                                                 }
1679                                         else
1680                                                 {
1681                                                 BIO_write(io,p,1);
1682                                                 j++;
1683                                                 }
1684                                         p++;
1685                                         }
1686                                 BIO_puts(io,"\n");
1687                                 }
1688                         BIO_printf(io,((con->hit)
1689                                 ?"---\nReused, "
1690                                 :"---\nNew, "));
1691                         c=SSL_get_current_cipher(con);
1692                         BIO_printf(io,"%s, Cipher is %s\n",
1693                                 SSL_CIPHER_get_version(c),
1694                                 SSL_CIPHER_get_name(c));
1695                         SSL_SESSION_print(io,SSL_get_session(con));
1696                         BIO_printf(io,"---\n");
1697                         print_stats(io,SSL_get_SSL_CTX(con));
1698                         BIO_printf(io,"---\n");
1699                         peer=SSL_get_peer_certificate(con);
1700                         if (peer != NULL)
1701                                 {
1702                                 BIO_printf(io,"Client certificate\n");
1703                                 X509_print(io,peer);
1704                                 PEM_write_bio_X509(io,peer);
1705                                 }
1706                         else
1707                                 BIO_puts(io,"no client certificate available\n");
1708                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1709                         break;
1710                         }
1711                 else if ((www == 2 || www == 3)
1712                          && (strncmp("GET /",buf,5) == 0))
1713                         {
1714                         BIO *file;
1715                         char *p,*e;
1716                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1717
1718                         /* skip the '/' */
1719                         p= &(buf[5]);
1720
1721                         dot = 1;
1722                         for (e=p; *e != '\0'; e++)
1723                                 {
1724                                 if (e[0] == ' ')
1725                                         break;
1726
1727                                 switch (dot)
1728                                         {
1729                                 case 1:
1730                                         dot = (e[0] == '.') ? 2 : 0;
1731                                         break;
1732                                 case 2:
1733                                         dot = (e[0] == '.') ? 3 : 0;
1734                                         break;
1735                                 case 3:
1736                                         dot = (e[0] == '/') ? -1 : 0;
1737                                         break;
1738                                         }
1739                                 if (dot == 0)
1740                                         dot = (e[0] == '/') ? 1 : 0;
1741                                 }
1742                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
1743
1744                         if (*e == '\0')
1745                                 {
1746                                 BIO_puts(io,text);
1747                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1748                                 break;
1749                                 }
1750                         *e='\0';
1751
1752                         if (dot)
1753                                 {
1754                                 BIO_puts(io,text);
1755                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1756                                 break;
1757                                 }
1758
1759                         if (*p == '/')
1760                                 {
1761                                 BIO_puts(io,text);
1762                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1763                                 break;
1764                                 }
1765
1766 #if 0
1767                         /* append if a directory lookup */
1768                         if (e[-1] == '/')
1769                                 strcat(p,"index.html");
1770 #endif
1771
1772                         /* if a directory, do the index thang */
1773                         if (stat(p,&st_buf) < 0)
1774                                 {
1775                                 BIO_puts(io,text);
1776                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1777                                 ERR_print_errors(io);
1778                                 break;
1779                                 }
1780                         if (S_ISDIR(st_buf.st_mode))
1781                                 {
1782 #if 0 /* must check buffer size */
1783                                 strcat(p,"/index.html");
1784 #else
1785                                 BIO_puts(io,text);
1786                                 BIO_printf(io,"'%s' is a directory\r\n",p);
1787                                 break;
1788 #endif
1789                                 }
1790
1791                         if ((file=BIO_new_file(p,"r")) == NULL)
1792                                 {
1793                                 BIO_puts(io,text);
1794                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1795                                 ERR_print_errors(io);
1796                                 break;
1797                                 }
1798
1799                         if (!s_quiet)
1800                                 BIO_printf(bio_err,"FILE:%s\n",p);
1801
1802                         if (www == 2)
1803                                 {
1804                                 i=strlen(p);
1805                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1806                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1807                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1808                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1809                                 else
1810                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1811                                 }
1812                         /* send the file */
1813                         total_bytes=0;
1814                         for (;;)
1815                                 {
1816                                 i=BIO_read(file,buf,bufsize);
1817                                 if (i <= 0) break;
1818
1819 #ifdef RENEG
1820                                 total_bytes+=i;
1821                                 fprintf(stderr,"%d\n",i);
1822                                 if (total_bytes > 3*1024)
1823                                         {
1824                                         total_bytes=0;
1825                                         fprintf(stderr,"RENEGOTIATE\n");
1826                                         SSL_renegotiate(con);
1827                                         }
1828 #endif
1829
1830                                 for (j=0; j<i; )
1831                                         {
1832 #ifdef RENEG
1833 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1834 #endif
1835                                         k=BIO_write(io,&(buf[j]),i-j);
1836                                         if (k <= 0)
1837                                                 {
1838                                                 if (!BIO_should_retry(io))
1839                                                         goto write_error;
1840                                                 else
1841                                                         {
1842                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1843                                                         }
1844                                                 }
1845                                         else
1846                                                 {
1847                                                 j+=k;
1848                                                 }
1849                                         }
1850                                 }
1851 write_error:
1852                         BIO_free(file);
1853                         break;
1854                         }
1855                 }
1856
1857         for (;;)
1858                 {
1859                 i=(int)BIO_flush(io);
1860                 if (i <= 0)
1861                         {
1862                         if (!BIO_should_retry(io))
1863                                 break;
1864                         }
1865                 else
1866                         break;
1867                 }
1868 end:
1869 #if 1
1870         /* make sure we re-use sessions */
1871         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1872 #else
1873         /* This kills performance */
1874 /*      SSL_shutdown(con); A shutdown gets sent in the
1875  *      BIO_free_all(io) procession */
1876 #endif
1877
1878 err:
1879
1880         if (ret >= 0)
1881                 BIO_printf(bio_s_out,"ACCEPT\n");
1882
1883         if (buf != NULL) OPENSSL_free(buf);
1884         if (io != NULL) BIO_free_all(io);
1885 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1886         return(ret);
1887         }
1888
1889 #ifndef OPENSSL_NO_RSA
1890 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1891         {
1892         BIGNUM *bn = NULL;
1893         static RSA *rsa_tmp=NULL;
1894
1895         if (!rsa_tmp && ((bn = BN_new()) == NULL))
1896                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
1897         if (!rsa_tmp && bn)
1898                 {
1899                 if (!s_quiet)
1900                         {
1901                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1902                         (void)BIO_flush(bio_err);
1903                         }
1904                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
1905                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
1906                         {
1907                         if(rsa_tmp) RSA_free(rsa_tmp);
1908                         rsa_tmp = NULL;
1909                         }
1910                 if (!s_quiet)
1911                         {
1912                         BIO_printf(bio_err,"\n");
1913                         (void)BIO_flush(bio_err);
1914                         }
1915                 BN_free(bn);
1916                 }
1917         return(rsa_tmp);
1918         }
1919 #endif
1920
1921 #define MAX_SESSION_ID_ATTEMPTS 10
1922 static int generate_session_id(const SSL *ssl, unsigned char *id,
1923                                 unsigned int *id_len)
1924         {
1925         unsigned int count = 0;
1926         do      {
1927                 RAND_pseudo_bytes(id, *id_len);
1928                 /* Prefix the session_id with the required prefix. NB: If our
1929                  * prefix is too long, clip it - but there will be worse effects
1930                  * anyway, eg. the server could only possibly create 1 session
1931                  * ID (ie. the prefix!) so all future session negotiations will
1932                  * fail due to conflicts. */
1933                 memcpy(id, session_id_prefix,
1934                         (strlen(session_id_prefix) < *id_len) ?
1935                         strlen(session_id_prefix) : *id_len);
1936                 }
1937         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
1938                 (++count < MAX_SESSION_ID_ATTEMPTS));
1939         if(count >= MAX_SESSION_ID_ATTEMPTS)
1940                 return 0;
1941         return 1;
1942         }