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