da0f2ff1169ece4c941e4288f08da8fe319f80d0
[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 #include <assert.h>
60 #include <stdio.h>
61 #include <stdlib.h>
62 #include <string.h>
63 #include <sys/types.h>
64 #include <sys/stat.h>
65 #ifdef NO_STDIO
66 #define APPS_WIN16
67 #endif
68
69 /* With IPv6, it looks like Digital has mixed up the proper order of
70    recursive header file inclusion, resulting in the compiler complaining
71    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
72    is needed to have fileno() declared correctly...  So let's define u_int */
73 #if defined(VMS) && defined(__DECC) && !defined(__U_INT)
74 #define __U_INT
75 typedef unsigned int u_int;
76 #endif
77
78 #include <openssl/lhash.h>
79 #include <openssl/bn.h>
80 #define USE_SOCKETS
81 #include "apps.h"
82 #include <openssl/err.h>
83 #include <openssl/pem.h>
84 #include <openssl/x509.h>
85 #include <openssl/ssl.h>
86 #include "s_apps.h"
87
88 #ifdef WINDOWS
89 #include <conio.h>
90 #endif
91
92 #if (defined(VMS) && __VMS_VER < 70000000)
93 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
94 #undef FIONBIO
95 #endif
96
97 #if defined(NO_RSA) && !defined(NO_SSL2)
98 #define NO_SSL2
99 #endif
100
101 #ifndef NO_RSA
102 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
103 #endif
104 static int sv_body(char *hostname, int s, unsigned char *context);
105 static int www_body(char *hostname, int s, unsigned char *context);
106 static void close_accept_socket(void );
107 static void sv_usage(void);
108 static int init_ssl_connection(SSL *s);
109 static void print_stats(BIO *bp,SSL_CTX *ctx);
110 #ifndef NO_DH
111 static DH *load_dh_param(void );
112 static DH *get_dh512(void);
113 #endif
114 #ifdef MONOLITH
115 static void s_server_init(void);
116 #endif
117
118 #ifndef S_ISDIR
119 # if defined(_S_IFMT) && defined(_S_IFDIR)
120 #  define S_ISDIR(a)    (((a) & _S_IFMT) == _S_IFDIR)
121 # else
122 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
123 # endif
124 #endif
125
126 #ifndef NO_DH
127 static unsigned char dh512_p[]={
128         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
129         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
130         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
131         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
132         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
133         0x47,0x74,0xE8,0x33,
134         };
135 static unsigned char dh512_g[]={
136         0x02,
137         };
138
139 static DH *get_dh512(void)
140         {
141         DH *dh=NULL;
142
143         if ((dh=DH_new()) == NULL) return(NULL);
144         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
145         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
146         if ((dh->p == NULL) || (dh->g == NULL))
147                 return(NULL);
148         return(dh);
149         }
150 #endif
151
152 /* static int load_CA(SSL_CTX *ctx, char *file);*/
153
154 #undef BUFSIZZ
155 #define BUFSIZZ 16*1024
156 static int bufsize=BUFSIZZ;
157 static int accept_socket= -1;
158
159 #define TEST_CERT       "server.pem"
160 #undef PROG
161 #define PROG            s_server_main
162
163 #define DH_PARAM        "server.pem"
164
165 extern int verify_depth;
166
167 static char *cipher=NULL;
168 static int s_server_verify=SSL_VERIFY_NONE;
169 static int s_server_session_id_context = 1; /* anything will do */
170 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
171 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
172 #ifdef FIONBIO
173 static int s_nbio=0;
174 #endif
175 static int s_nbio_test=0;
176 int s_crlf=0;
177 static SSL_CTX *ctx=NULL;
178 static int www=0;
179
180 static BIO *bio_s_out=NULL;
181 static int s_debug=0;
182 static int s_quiet=0;
183
184 static int hack=0;
185
186 #ifdef MONOLITH
187 static void s_server_init(void)
188         {
189         accept_socket=-1;
190         cipher=NULL;
191         s_server_verify=SSL_VERIFY_NONE;
192         s_dcert_file=NULL;
193         s_dkey_file=NULL;
194         s_cert_file=TEST_CERT;
195         s_key_file=NULL;
196 #ifdef FIONBIO
197         s_nbio=0;
198 #endif
199         s_nbio_test=0;
200         ctx=NULL;
201         www=0;
202
203         bio_s_out=NULL;
204         s_debug=0;
205         s_quiet=0;
206         hack=0;
207         }
208 #endif
209
210 static void sv_usage(void)
211         {
212         BIO_printf(bio_err,"usage: s_server [args ...]\n");
213         BIO_printf(bio_err,"\n");
214         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
215         BIO_printf(bio_err," -context arg  - set session ID context\n");
216         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
217         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
218         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
219         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
220         BIO_printf(bio_err," -key arg      - RSA file to use, PEM format assumed, in cert file if\n");
221         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
222         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
223         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
224 #ifdef FIONBIO
225         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
226 #endif
227         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
228         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
229         BIO_printf(bio_err," -debug        - Print more output\n");
230         BIO_printf(bio_err," -state        - Print the SSL states\n");
231         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
232         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
233         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
234         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
235         BIO_printf(bio_err," -quiet        - No server output\n");
236         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
237         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
238         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
239         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
240         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
241         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
242         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
243 #ifndef NO_DH
244         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
245 #endif
246         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatability\n");
247         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
248         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
249         }
250
251 static int local_argc=0;
252 static char **local_argv;
253
254 #ifdef CHARSET_EBCDIC
255 static int ebcdic_new(BIO *bi);
256 static int ebcdic_free(BIO *a);
257 static int ebcdic_read(BIO *b, char *out, int outl);
258 static int ebcdic_write(BIO *b, char *in, int inl);
259 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr);
260 static int ebcdic_gets(BIO *bp, char *buf, int size);
261 static int ebcdic_puts(BIO *bp, char *str);
262
263 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
264 static BIO_METHOD methods_ebcdic=
265         {
266         BIO_TYPE_EBCDIC_FILTER,
267         "EBCDIC/ASCII filter",
268         ebcdic_write,
269         ebcdic_read,
270         ebcdic_puts,
271         ebcdic_gets,
272         ebcdic_ctrl,
273         ebcdic_new,
274         ebcdic_free,
275         };
276
277 typedef struct
278 {
279         size_t  alloced;
280         char    buff[1];
281 } EBCDIC_OUTBUFF;
282
283 BIO_METHOD *BIO_f_ebcdic_filter()
284 {
285         return(&methods_ebcdic);
286 }
287
288 static int ebcdic_new(BIO *bi)
289 {
290         EBCDIC_OUTBUFF *wbuf;
291
292         wbuf = (EBCDIC_OUTBUFF *)Malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
293         wbuf->alloced = 1024;
294         wbuf->buff[0] = '\0';
295
296         bi->ptr=(char *)wbuf;
297         bi->init=1;
298         bi->flags=0;
299         return(1);
300 }
301
302 static int ebcdic_free(BIO *a)
303 {
304         if (a == NULL) return(0);
305         if (a->ptr != NULL)
306                 Free(a->ptr);
307         a->ptr=NULL;
308         a->init=0;
309         a->flags=0;
310         return(1);
311 }
312         
313 static int ebcdic_read(BIO *b, char *out, int outl)
314 {
315         int ret=0;
316
317         if (out == NULL || outl == 0) return(0);
318         if (b->next_bio == NULL) return(0);
319
320         ret=BIO_read(b->next_bio,out,outl);
321         if (ret > 0)
322                 ascii2ebcdic(out,out,ret);
323         return(ret);
324 }
325
326 static int ebcdic_write(BIO *b, char *in, int inl)
327 {
328         EBCDIC_OUTBUFF *wbuf;
329         int ret=0;
330         int num;
331         unsigned char n;
332
333         if ((in == NULL) || (inl <= 0)) return(0);
334         if (b->next_bio == NULL) return(0);
335
336         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
337
338         if (inl > (num = wbuf->alloced))
339         {
340                 num = num + num;  /* double the size */
341                 if (num < inl)
342                         num = inl;
343                 Free((char*)wbuf);
344                 wbuf=(EBCDIC_OUTBUFF *)Malloc(sizeof(EBCDIC_OUTBUFF) + num);
345
346                 wbuf->alloced = num;
347                 wbuf->buff[0] = '\0';
348
349                 b->ptr=(char *)wbuf;
350         }
351
352         ebcdic2ascii(wbuf->buff, in, inl);
353
354         ret=BIO_write(b->next_bio, wbuf->buff, inl);
355
356         return(ret);
357 }
358
359 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr)
360 {
361         long ret;
362
363         if (b->next_bio == NULL) return(0);
364         switch (cmd)
365         {
366         case BIO_CTRL_DUP:
367                 ret=0L;
368                 break;
369         default:
370                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
371                 break;
372         }
373         return(ret);
374 }
375
376 static int ebcdic_gets(BIO *bp, char *buf, int size)
377 {
378         int i, ret;
379         if (bp->next_bio == NULL) return(0);
380 /*      return(BIO_gets(bp->next_bio,buf,size));*/
381         for (i=0; i<size-1; ++i)
382         {
383                 ret = ebcdic_read(bp,&buf[i],1);
384                 if (ret <= 0)
385                         break;
386                 else if (buf[i] == '\n')
387                 {
388                         ++i;
389                         break;
390                 }
391         }
392         if (i < size)
393                 buf[i] = '\0';
394         return (ret < 0 && i == 0) ? ret : i;
395 }
396
397 static int ebcdic_puts(BIO *bp, char *str)
398 {
399         if (bp->next_bio == NULL) return(0);
400         return ebcdic_write(bp, str, strlen(str));
401 }
402 #endif
403
404 int MAIN(int argc, char *argv[])
405         {
406         short port=PORT;
407         char *CApath=NULL,*CAfile=NULL;
408         char *context = NULL;
409         int badop=0,bugs=0;
410         int ret=1;
411         int off=0;
412         int no_tmp_rsa=0,no_dhe=0,nocert=0;
413         int state=0;
414         SSL_METHOD *meth=NULL;
415 #ifndef NO_DH
416         DH *dh=NULL;
417 #endif
418
419 #if !defined(NO_SSL2) && !defined(NO_SSL3)
420         meth=SSLv23_server_method();
421 #elif !defined(NO_SSL3)
422         meth=SSLv3_server_method();
423 #elif !defined(NO_SSL2)
424         meth=SSLv2_server_method();
425 #endif
426
427         local_argc=argc;
428         local_argv=argv;
429
430         apps_startup();
431 #ifdef MONOLITH
432         s_server_init();
433 #endif
434
435         if (bio_err == NULL)
436                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
437
438         verify_depth=0;
439 #ifdef FIONBIO
440         s_nbio=0;
441 #endif
442         s_nbio_test=0;
443
444         argc--;
445         argv++;
446
447         while (argc >= 1)
448                 {
449                 if      ((strcmp(*argv,"-port") == 0) ||
450                          (strcmp(*argv,"-accept") == 0))
451                         {
452                         if (--argc < 1) goto bad;
453                         if (!extract_port(*(++argv),&port))
454                                 goto bad;
455                         }
456                 else if (strcmp(*argv,"-verify") == 0)
457                         {
458                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
459                         if (--argc < 1) goto bad;
460                         verify_depth=atoi(*(++argv));
461                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
462                         }
463                 else if (strcmp(*argv,"-Verify") == 0)
464                         {
465                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
466                                 SSL_VERIFY_CLIENT_ONCE;
467                         if (--argc < 1) goto bad;
468                         verify_depth=atoi(*(++argv));
469                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
470                         }
471                 else if (strcmp(*argv,"-context") == 0)
472                         {
473                         if (--argc < 1) goto bad;
474                         context= *(++argv);
475                         }
476                 else if (strcmp(*argv,"-cert") == 0)
477                         {
478                         if (--argc < 1) goto bad;
479                         s_cert_file= *(++argv);
480                         }
481                 else if (strcmp(*argv,"-key") == 0)
482                         {
483                         if (--argc < 1) goto bad;
484                         s_key_file= *(++argv);
485                         }
486                 else if (strcmp(*argv,"-dcert") == 0)
487                         {
488                         if (--argc < 1) goto bad;
489                         s_dcert_file= *(++argv);
490                         }
491                 else if (strcmp(*argv,"-dkey") == 0)
492                         {
493                         if (--argc < 1) goto bad;
494                         s_dkey_file= *(++argv);
495                         }
496                 else if (strcmp(*argv,"-nocert") == 0)
497                         {
498                         nocert=1;
499                         }
500                 else if (strcmp(*argv,"-CApath") == 0)
501                         {
502                         if (--argc < 1) goto bad;
503                         CApath= *(++argv);
504                         }
505                 else if (strcmp(*argv,"-cipher") == 0)
506                         {
507                         if (--argc < 1) goto bad;
508                         cipher= *(++argv);
509                         }
510                 else if (strcmp(*argv,"-CAfile") == 0)
511                         {
512                         if (--argc < 1) goto bad;
513                         CAfile= *(++argv);
514                         }
515 #ifdef FIONBIO  
516                 else if (strcmp(*argv,"-nbio") == 0)
517                         { s_nbio=1; }
518 #endif
519                 else if (strcmp(*argv,"-nbio_test") == 0)
520                         {
521 #ifdef FIONBIO  
522                         s_nbio=1;
523 #endif
524                         s_nbio_test=1;
525                         }
526                 else if (strcmp(*argv,"-debug") == 0)
527                         { s_debug=1; }
528                 else if (strcmp(*argv,"-hack") == 0)
529                         { hack=1; }
530                 else if (strcmp(*argv,"-state") == 0)
531                         { state=1; }
532                 else if (strcmp(*argv,"-crlf") == 0)
533                         { s_crlf=1; }
534                 else if (strcmp(*argv,"-quiet") == 0)
535                         { s_quiet=1; }
536                 else if (strcmp(*argv,"-bugs") == 0)
537                         { bugs=1; }
538                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
539                         { no_tmp_rsa=1; }
540                 else if (strcmp(*argv,"-no_dhe") == 0)
541                         { no_dhe=1; }
542                 else if (strcmp(*argv,"-www") == 0)
543                         { www=1; }
544                 else if (strcmp(*argv,"-WWW") == 0)
545                         { www=2; }
546                 else if (strcmp(*argv,"-no_ssl2") == 0)
547                         { off|=SSL_OP_NO_SSLv2; }
548                 else if (strcmp(*argv,"-no_ssl3") == 0)
549                         { off|=SSL_OP_NO_SSLv3; }
550                 else if (strcmp(*argv,"-no_tls1") == 0)
551                         { off|=SSL_OP_NO_TLSv1; }
552 #ifndef NO_SSL2
553                 else if (strcmp(*argv,"-ssl2") == 0)
554                         { meth=SSLv2_server_method(); }
555 #endif
556 #ifndef NO_SSL3
557                 else if (strcmp(*argv,"-ssl3") == 0)
558                         { meth=SSLv3_server_method(); }
559 #endif
560 #ifndef NO_TLS1
561                 else if (strcmp(*argv,"-tls1") == 0)
562                         { meth=TLSv1_server_method(); }
563 #endif
564                 else
565                         {
566                         BIO_printf(bio_err,"unknown option %s\n",*argv);
567                         badop=1;
568                         break;
569                         }
570                 argc--;
571                 argv++;
572                 }
573         if (badop)
574                 {
575 bad:
576                 sv_usage();
577                 goto end;
578                 }
579
580         if (bio_s_out == NULL)
581                 {
582                 if (s_quiet && !s_debug)
583                         {
584                         bio_s_out=BIO_new(BIO_s_null());
585                         }
586                 else
587                         {
588                         if (bio_s_out == NULL)
589                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
590                         }
591                 }
592
593 #if !defined(NO_RSA) || !defined(NO_DSA)
594         if (nocert)
595 #endif
596                 {
597                 s_cert_file=NULL;
598                 s_key_file=NULL;
599                 s_dcert_file=NULL;
600                 s_dkey_file=NULL;
601                 }
602
603         SSL_load_error_strings();
604         SSLeay_add_ssl_algorithms();
605
606         ctx=SSL_CTX_new(meth);
607         if (ctx == NULL)
608                 {
609                 ERR_print_errors(bio_err);
610                 goto end;
611                 }
612
613         SSL_CTX_set_quiet_shutdown(ctx,1);
614         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
615         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
616         SSL_CTX_set_options(ctx,off);
617         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NON_EXPORT_FIRST);
618
619         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
620
621         SSL_CTX_sess_set_cache_size(ctx,128);
622
623 #if 0
624         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
625 #endif
626
627 #if 0
628         if (s_cert_file == NULL)
629                 {
630                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
631                 goto end;
632                 }
633 #endif
634
635         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
636                 (!SSL_CTX_set_default_verify_paths(ctx)))
637                 {
638                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
639                 ERR_print_errors(bio_err);
640                 /* goto end; */
641                 }
642
643 #ifndef NO_DH
644         if (!no_dhe)
645                 {
646                 /* EAY EAY EAY evil hack */
647                 dh=load_dh_param();
648                 if (dh != NULL)
649                         {
650                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
651                         }
652                 else
653                         {
654                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
655                         dh=get_dh512();
656                         }
657                 (void)BIO_flush(bio_s_out);
658
659                 SSL_CTX_set_tmp_dh(ctx,dh);
660                 DH_free(dh);
661                 }
662 #endif
663         
664         if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
665                 goto end;
666         if (s_dcert_file != NULL)
667                 {
668                 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
669                         goto end;
670                 }
671
672 #ifndef NO_RSA
673 #if 1
674         SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
675 #else
676         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
677                 {
678                 RSA *rsa;
679
680                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
681                 BIO_flush(bio_s_out);
682
683                 rsa=RSA_generate_key(512,RSA_F4,NULL);
684
685                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
686                         {
687                         ERR_print_errors(bio_err);
688                         goto end;
689                         }
690                 RSA_free(rsa);
691                 BIO_printf(bio_s_out,"\n");
692                 }
693 #endif
694 #endif
695
696         if (cipher != NULL)
697                 SSL_CTX_set_cipher_list(ctx,cipher);
698         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
699         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
700                 sizeof s_server_session_id_context);
701
702         if (CAfile != NULL)
703             SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
704
705         BIO_printf(bio_s_out,"ACCEPT\n");
706         if (www)
707                 do_server(port,&accept_socket,www_body, context);
708         else
709                 do_server(port,&accept_socket,sv_body, context);
710         print_stats(bio_s_out,ctx);
711         ret=0;
712 end:
713         if (ctx != NULL) SSL_CTX_free(ctx);
714         if (bio_s_out != NULL)
715                 {
716                 BIO_free(bio_s_out);
717                 bio_s_out=NULL;
718                 }
719         EXIT(ret);
720         }
721
722 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
723         {
724         BIO_printf(bio,"%4ld items in the session cache\n",
725                 SSL_CTX_sess_number(ssl_ctx));
726         BIO_printf(bio,"%4d client connects (SSL_connect())\n",
727                 SSL_CTX_sess_connect(ssl_ctx));
728         BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
729                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
730         BIO_printf(bio,"%4d client connects that finished\n",
731                 SSL_CTX_sess_connect_good(ssl_ctx));
732         BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
733                 SSL_CTX_sess_accept(ssl_ctx));
734         BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
735                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
736         BIO_printf(bio,"%4d server accepts that finished\n",
737                 SSL_CTX_sess_accept_good(ssl_ctx));
738         BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
739         BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
740         BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
741         BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
742         BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
743                 SSL_CTX_sess_cache_full(ssl_ctx),
744                 SSL_CTX_sess_get_cache_size(ssl_ctx));
745         }
746
747 static int sv_body(char *hostname, int s, unsigned char *context)
748         {
749         char *buf=NULL;
750         fd_set readfds;
751         int ret=1,width;
752         int k,i;
753         unsigned long l;
754         SSL *con=NULL;
755         BIO *sbio;
756 #ifdef WINDOWS
757         struct timeval tv;
758 #endif
759
760         if ((buf=Malloc(bufsize)) == NULL)
761                 {
762                 BIO_printf(bio_err,"out of memory\n");
763                 goto err;
764                 }
765 #ifdef FIONBIO  
766         if (s_nbio)
767                 {
768                 unsigned long sl=1;
769
770                 if (!s_quiet)
771                         BIO_printf(bio_err,"turning on non blocking io\n");
772                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
773                         ERR_print_errors(bio_err);
774                 }
775 #endif
776
777         if (con == NULL) {
778                 con=(SSL *)SSL_new(ctx);
779                 if(context)
780                       SSL_set_session_id_context(con, context,
781                                                  strlen((char *)context));
782         }
783         SSL_clear(con);
784
785         sbio=BIO_new_socket(s,BIO_NOCLOSE);
786         if (s_nbio_test)
787                 {
788                 BIO *test;
789
790                 test=BIO_new(BIO_f_nbio_test());
791                 sbio=BIO_push(test,sbio);
792                 }
793         SSL_set_bio(con,sbio,sbio);
794         SSL_set_accept_state(con);
795         /* SSL_set_fd(con,s); */
796
797         if (s_debug)
798                 {
799                 con->debug=1;
800                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
801                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
802                 }
803
804         width=s+1;
805         for (;;)
806                 {
807                 FD_ZERO(&readfds);
808 #ifndef WINDOWS
809                 FD_SET(fileno(stdin),&readfds);
810 #endif
811                 FD_SET(s,&readfds);
812                 /* Note: under VMS with SOCKETSHR the second parameter is
813                  * currently of type (int *) whereas under other systems
814                  * it is (void *) if you don't have a cast it will choke
815                  * the compiler: if you do have a cast then you can either
816                  * go for (int *) or (void *).
817                  */
818 #ifdef WINDOWS
819                 /* Under Windows we can't select on stdin: only
820                  * on sockets. As a workaround we timeout the select every
821                  * second and check for any keypress. In a proper Windows
822                  * application we wouldn't do this because it is inefficient.
823                  */
824                 tv.tv_sec = 1;
825                 tv.tv_usec = 0;
826                 i=select(width,(void *)&readfds,NULL,NULL,&tv);
827                 if((i < 0) || (!i && !_kbhit() ) )continue;
828                 if(_kbhit())
829 #else
830                 i=select(width,(void *)&readfds,NULL,NULL,NULL);
831                 if (i <= 0) continue;
832                 if (FD_ISSET(fileno(stdin),&readfds))
833 #endif
834                         {
835                         if (s_crlf)
836                                 {
837                                 int j, lf_num;
838
839                                 i=read(fileno(stdin), buf, bufsize/2);
840                                 lf_num = 0;
841                                 /* both loops are skipped when i <= 0 */
842                                 for (j = 0; j < i; j++)
843                                         if (buf[j] == '\n')
844                                                 lf_num++;
845                                 for (j = i-1; j >= 0; j--)
846                                         {
847                                         buf[j+lf_num] = buf[j];
848                                         if (buf[j] == '\n')
849                                                 {
850                                                 lf_num--;
851                                                 i++;
852                                                 buf[j+lf_num] = '\r';
853                                                 }
854                                         }
855                                 assert(lf_num == 0);
856                                 }
857                         else
858                                 i=read(fileno(stdin),buf,bufsize);
859                         if (!s_quiet)
860                                 {
861                                 if ((i <= 0) || (buf[0] == 'Q'))
862                                         {
863                                         BIO_printf(bio_s_out,"DONE\n");
864                                         SHUTDOWN(s);
865                                         close_accept_socket();
866                                         ret= -11;
867                                         goto err;
868                                         }
869                                 if ((i <= 0) || (buf[0] == 'q'))
870                                         {
871                                         BIO_printf(bio_s_out,"DONE\n");
872                                         SHUTDOWN(s);
873         /*                              close_accept_socket();
874                                         ret= -11;*/
875                                         goto err;
876                                         }
877                                 if ((buf[0] == 'r') && 
878                                         ((buf[1] == '\n') || (buf[1] == '\r')))
879                                         {
880                                         SSL_renegotiate(con);
881                                         i=SSL_do_handshake(con);
882                                         printf("SSL_do_handshake -> %d\n",i);
883                                         i=0; /*13; */
884                                         continue;
885                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
886                                         }
887                                 if ((buf[0] == 'R') &&
888                                         ((buf[1] == '\n') || (buf[1] == '\r')))
889                                         {
890                                         SSL_set_verify(con,
891                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
892                                         SSL_renegotiate(con);
893                                         i=SSL_do_handshake(con);
894                                         printf("SSL_do_handshake -> %d\n",i);
895                                         i=0; /* 13; */
896                                         continue;
897                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
898                                         }
899                                 if (buf[0] == 'P')
900                                         {
901                                         static char *str="Lets print some clear text\n";
902                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
903                                         }
904                                 if (buf[0] == 'S')
905                                         {
906                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
907                                         }
908                                 }
909 #ifdef CHARSET_EBCDIC
910                         ebcdic2ascii(buf,buf,i);
911 #endif
912                         l=k=0;
913                         for (;;)
914                                 {
915                                 /* should do a select for the write */
916 #ifdef RENEG
917 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
918 #endif
919                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
920                                 switch (SSL_get_error(con,k))
921                                         {
922                                 case SSL_ERROR_NONE:
923                                         break;
924                                 case SSL_ERROR_WANT_WRITE:
925                                 case SSL_ERROR_WANT_READ:
926                                 case SSL_ERROR_WANT_X509_LOOKUP:
927                                         BIO_printf(bio_s_out,"Write BLOCK\n");
928                                         break;
929                                 case SSL_ERROR_SYSCALL:
930                                 case SSL_ERROR_SSL:
931                                         BIO_printf(bio_s_out,"ERROR\n");
932                                         ERR_print_errors(bio_err);
933                                         ret=1;
934                                         goto err;
935                                         /* break; */
936                                 case SSL_ERROR_ZERO_RETURN:
937                                         BIO_printf(bio_s_out,"DONE\n");
938                                         ret=1;
939                                         goto err;
940                                         }
941                                 l+=k;
942                                 i-=k;
943                                 if (i <= 0) break;
944                                 }
945                         }
946                 if (FD_ISSET(s,&readfds))
947                         {
948                         if (!SSL_is_init_finished(con))
949                                 {
950                                 i=init_ssl_connection(con);
951                                 
952                                 if (i < 0)
953                                         {
954                                         ret=0;
955                                         goto err;
956                                         }
957                                 else if (i == 0)
958                                         {
959                                         ret=1;
960                                         goto err;
961                                         }
962                                 }
963                         else
964                                 {
965 again:  
966                                 i=SSL_read(con,(char *)buf,bufsize);
967                                 switch (SSL_get_error(con,i))
968                                         {
969                                 case SSL_ERROR_NONE:
970 #ifdef CHARSET_EBCDIC
971                                         ascii2ebcdic(buf,buf,i);
972 #endif
973                                         write(fileno(stdout),buf,
974                                                 (unsigned int)i);
975                                         if (SSL_pending(con)) goto again;
976                                         break;
977                                 case SSL_ERROR_WANT_WRITE:
978                                 case SSL_ERROR_WANT_READ:
979                                 case SSL_ERROR_WANT_X509_LOOKUP:
980                                         BIO_printf(bio_s_out,"Read BLOCK\n");
981                                         break;
982                                 case SSL_ERROR_SYSCALL:
983                                 case SSL_ERROR_SSL:
984                                         BIO_printf(bio_s_out,"ERROR\n");
985                                         ERR_print_errors(bio_err);
986                                         ret=1;
987                                         goto err;
988                                 case SSL_ERROR_ZERO_RETURN:
989                                         BIO_printf(bio_s_out,"DONE\n");
990                                         ret=1;
991                                         goto err;
992                                         }
993                                 }
994                         }
995                 }
996 err:
997         BIO_printf(bio_s_out,"shutting down SSL\n");
998 #if 1
999         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1000 #else
1001         SSL_shutdown(con);
1002 #endif
1003         if (con != NULL) SSL_free(con);
1004         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1005         if (buf != NULL)
1006                 {
1007                 memset(buf,0,bufsize);
1008                 Free(buf);
1009                 }
1010         if (ret >= 0)
1011                 BIO_printf(bio_s_out,"ACCEPT\n");
1012         return(ret);
1013         }
1014
1015 static void close_accept_socket(void)
1016         {
1017         BIO_printf(bio_err,"shutdown accept socket\n");
1018         if (accept_socket >= 0)
1019                 {
1020                 SHUTDOWN2(accept_socket);
1021                 }
1022         }
1023
1024 static int init_ssl_connection(SSL *con)
1025         {
1026         int i;
1027         const char *str;
1028         X509 *peer;
1029         long verify_error;
1030         MS_STATIC char buf[BUFSIZ];
1031
1032         if ((i=SSL_accept(con)) <= 0)
1033                 {
1034                 if (BIO_sock_should_retry(i))
1035                         {
1036                         BIO_printf(bio_s_out,"DELAY\n");
1037                         return(1);
1038                         }
1039
1040                 BIO_printf(bio_err,"ERROR\n");
1041                 verify_error=SSL_get_verify_result(con);
1042                 if (verify_error != X509_V_OK)
1043                         {
1044                         BIO_printf(bio_err,"verify error:%s\n",
1045                                 X509_verify_cert_error_string(verify_error));
1046                         }
1047                 else
1048                         ERR_print_errors(bio_err);
1049                 return(0);
1050                 }
1051
1052         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1053
1054         peer=SSL_get_peer_certificate(con);
1055         if (peer != NULL)
1056                 {
1057                 BIO_printf(bio_s_out,"Client certificate\n");
1058                 PEM_write_bio_X509(bio_s_out,peer);
1059                 X509_NAME_oneline(X509_get_subject_name(peer),buf,BUFSIZ);
1060                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1061                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,BUFSIZ);
1062                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1063                 X509_free(peer);
1064                 }
1065
1066         if (SSL_get_shared_ciphers(con,buf,BUFSIZ) != NULL)
1067                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1068         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1069         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1070         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1071         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1072                 TLS1_FLAGS_TLS_PADDING_BUG)
1073                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1074
1075         return(1);
1076         }
1077
1078 #ifndef NO_DH
1079 static DH *load_dh_param(void)
1080         {
1081         DH *ret=NULL;
1082         BIO *bio;
1083
1084         if ((bio=BIO_new_file(DH_PARAM,"r")) == NULL)
1085                 goto err;
1086         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1087 err:
1088         if (bio != NULL) BIO_free(bio);
1089         return(ret);
1090         }
1091 #endif
1092
1093 #if 0
1094 static int load_CA(SSL_CTX *ctx, char *file)
1095         {
1096         FILE *in;
1097         X509 *x=NULL;
1098
1099         if ((in=fopen(file,"r")) == NULL)
1100                 return(0);
1101
1102         for (;;)
1103                 {
1104                 if (PEM_read_X509(in,&x,NULL) == NULL)
1105                         break;
1106                 SSL_CTX_add_client_CA(ctx,x);
1107                 }
1108         if (x != NULL) X509_free(x);
1109         fclose(in);
1110         return(1);
1111         }
1112 #endif
1113
1114 static int www_body(char *hostname, int s, unsigned char *context)
1115         {
1116         char *buf=NULL;
1117         int ret=1;
1118         int i,j,k,blank,dot;
1119         struct stat st_buf;
1120         SSL *con;
1121         SSL_CIPHER *c;
1122         BIO *io,*ssl_bio,*sbio;
1123         long total_bytes;
1124
1125         buf=Malloc(bufsize);
1126         if (buf == NULL) return(0);
1127         io=BIO_new(BIO_f_buffer());
1128         ssl_bio=BIO_new(BIO_f_ssl());
1129         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1130
1131 #ifdef FIONBIO  
1132         if (s_nbio)
1133                 {
1134                 unsigned long sl=1;
1135
1136                 if (!s_quiet)
1137                         BIO_printf(bio_err,"turning on non blocking io\n");
1138                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1139                         ERR_print_errors(bio_err);
1140                 }
1141 #endif
1142
1143         /* lets make the output buffer a reasonable size */
1144         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1145
1146         if ((con=(SSL *)SSL_new(ctx)) == NULL) goto err;
1147         if(context) SSL_set_session_id_context(con, context,
1148                                                strlen((char *)context));
1149
1150         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1151         if (s_nbio_test)
1152                 {
1153                 BIO *test;
1154
1155                 test=BIO_new(BIO_f_nbio_test());
1156                 sbio=BIO_push(test,sbio);
1157                 }
1158         SSL_set_bio(con,sbio,sbio);
1159         SSL_set_accept_state(con);
1160
1161         /* SSL_set_fd(con,s); */
1162         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1163         BIO_push(io,ssl_bio);
1164 #ifdef CHARSET_EBCDIC
1165         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1166 #endif
1167
1168         if (s_debug)
1169                 {
1170                 con->debug=1;
1171                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1172                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1173                 }
1174
1175         blank=0;
1176         for (;;)
1177                 {
1178                 if (hack)
1179                         {
1180                         i=SSL_accept(con);
1181
1182                         switch (SSL_get_error(con,i))
1183                                 {
1184                         case SSL_ERROR_NONE:
1185                                 break;
1186                         case SSL_ERROR_WANT_WRITE:
1187                         case SSL_ERROR_WANT_READ:
1188                         case SSL_ERROR_WANT_X509_LOOKUP:
1189                                 continue;
1190                         case SSL_ERROR_SYSCALL:
1191                         case SSL_ERROR_SSL:
1192                         case SSL_ERROR_ZERO_RETURN:
1193                                 ret=1;
1194                                 goto err;
1195                                 /* break; */
1196                                 }
1197
1198                         SSL_renegotiate(con);
1199                         SSL_write(con,NULL,0);
1200                         }
1201
1202                 i=BIO_gets(io,buf,bufsize-1);
1203                 if (i < 0) /* error */
1204                         {
1205                         if (!BIO_should_retry(io))
1206                                 {
1207                                 if (!s_quiet)
1208                                         ERR_print_errors(bio_err);
1209                                 goto err;
1210                                 }
1211                         else
1212                                 {
1213                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1214 #ifndef MSDOS
1215                                 sleep(1);
1216 #endif
1217                                 continue;
1218                                 }
1219                         }
1220                 else if (i == 0) /* end of input */
1221                         {
1222                         ret=1;
1223                         goto end;
1224                         }
1225
1226                 /* else we have data */
1227                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1228                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1229                         {
1230                         char *p;
1231                         X509 *peer;
1232                         STACK_OF(SSL_CIPHER) *sk;
1233                         static char *space="                          ";
1234
1235                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1236                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1237                         BIO_puts(io,"<pre>\n");
1238 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1239                         BIO_puts(io,"\n");
1240                         for (i=0; i<local_argc; i++)
1241                                 {
1242                                 BIO_puts(io,local_argv[i]);
1243                                 BIO_write(io," ",1);
1244                                 }
1245                         BIO_puts(io,"\n");
1246
1247                         /* The following is evil and should not really
1248                          * be done */
1249                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1250                         sk=SSL_get_ciphers(con);
1251                         j=sk_SSL_CIPHER_num(sk);
1252                         for (i=0; i<j; i++)
1253                                 {
1254                                 c=sk_SSL_CIPHER_value(sk,i);
1255                                 BIO_printf(io,"%-11s:%-25s",
1256                                         SSL_CIPHER_get_version(c),
1257                                         SSL_CIPHER_get_name(c));
1258                                 if ((((i+1)%2) == 0) && (i+1 != j))
1259                                         BIO_puts(io,"\n");
1260                                 }
1261                         BIO_puts(io,"\n");
1262                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1263                         if (p != NULL)
1264                                 {
1265                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1266                                 j=i=0;
1267                                 while (*p)
1268                                         {
1269                                         if (*p == ':')
1270                                                 {
1271                                                 BIO_write(io,space,26-j);
1272                                                 i++;
1273                                                 j=0;
1274                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1275                                                 }
1276                                         else
1277                                                 {
1278                                                 BIO_write(io,p,1);
1279                                                 j++;
1280                                                 }
1281                                         p++;
1282                                         }
1283                                 BIO_puts(io,"\n");
1284                                 }
1285                         BIO_printf(io,((con->hit)
1286                                 ?"---\nReused, "
1287                                 :"---\nNew, "));
1288                         c=SSL_get_current_cipher(con);
1289                         BIO_printf(io,"%s, Cipher is %s\n",
1290                                 SSL_CIPHER_get_version(c),
1291                                 SSL_CIPHER_get_name(c));
1292                         SSL_SESSION_print(io,SSL_get_session(con));
1293                         BIO_printf(io,"---\n");
1294                         print_stats(io,SSL_get_SSL_CTX(con));
1295                         BIO_printf(io,"---\n");
1296                         peer=SSL_get_peer_certificate(con);
1297                         if (peer != NULL)
1298                                 {
1299                                 BIO_printf(io,"Client certificate\n");
1300                                 X509_print(io,peer);
1301                                 PEM_write_bio_X509(io,peer);
1302                                 }
1303                         else
1304                                 BIO_puts(io,"no client certificate available\n");
1305                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1306                         break;
1307                         }
1308                 else if ((www == 2) && (strncmp("GET /",buf,5) == 0))
1309                         {
1310                         BIO *file;
1311                         char *p,*e;
1312                         static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1313
1314                         /* skip the '/' */
1315                         p= &(buf[5]);
1316                         dot=0;
1317                         for (e=p; *e != '\0'; e++)
1318                                 {
1319                                 if (e[0] == ' ') break;
1320                                 if (    (e[0] == '.') &&
1321                                         (strncmp(&(e[-1]),"/../",4) == 0))
1322                                         dot=1;
1323                                 }
1324                         
1325
1326                         if (*e == '\0')
1327                                 {
1328                                 BIO_puts(io,text);
1329                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1330                                 break;
1331                                 }
1332                         *e='\0';
1333
1334                         if (dot)
1335                                 {
1336                                 BIO_puts(io,text);
1337                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1338                                 break;
1339                                 }
1340
1341                         if (*p == '/')
1342                                 {
1343                                 BIO_puts(io,text);
1344                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1345                                 break;
1346                                 }
1347
1348                         /* append if a directory lookup */
1349                         if (e[-1] == '/')
1350                                 strcat(p,"index.html");
1351
1352                         /* if a directory, do the index thang */
1353                         if (stat(p,&st_buf) < 0)
1354                                 {
1355                                 BIO_puts(io,text);
1356                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1357                                 ERR_print_errors(io);
1358                                 break;
1359                                 }
1360                         if (S_ISDIR(st_buf.st_mode))
1361                                 {
1362                                 strcat(p,"/index.html");
1363                                 }
1364
1365                         if ((file=BIO_new_file(p,"r")) == NULL)
1366                                 {
1367                                 BIO_puts(io,text);
1368                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1369                                 ERR_print_errors(io);
1370                                 break;
1371                                 }
1372
1373                         if (!s_quiet)
1374                                 BIO_printf(bio_err,"FILE:%s\n",p);
1375
1376                         i=strlen(p);
1377                         if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1378                                 ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1379                                 ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1380                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1381                         else
1382                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1383                         /* send the file */
1384                         total_bytes=0;
1385                         for (;;)
1386                                 {
1387                                 i=BIO_read(file,buf,bufsize);
1388                                 if (i <= 0) break;
1389
1390 #ifdef RENEG
1391                                 total_bytes+=i;
1392                                 fprintf(stderr,"%d\n",i);
1393                                 if (total_bytes > 3*1024)
1394                                         {
1395                                         total_bytes=0;
1396                                         fprintf(stderr,"RENEGOTIATE\n");
1397                                         SSL_renegotiate(con);
1398                                         }
1399 #endif
1400
1401                                 for (j=0; j<i; )
1402                                         {
1403 #ifdef RENEG
1404 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1405 #endif
1406                                         k=BIO_write(io,&(buf[j]),i-j);
1407                                         if (k <= 0)
1408                                                 {
1409                                                 if (!BIO_should_retry(io))
1410                                                         goto write_error;
1411                                                 else
1412                                                         {
1413                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1414                                                         }
1415                                                 }
1416                                         else
1417                                                 {
1418                                                 j+=k;
1419                                                 }
1420                                         }
1421                                 }
1422 write_error:
1423                         BIO_free(file);
1424                         break;
1425                         }
1426                 }
1427
1428         for (;;)
1429                 {
1430                 i=(int)BIO_flush(io);
1431                 if (i <= 0)
1432                         {
1433                         if (!BIO_should_retry(io))
1434                                 break;
1435                         }
1436                 else
1437                         break;
1438                 }
1439 end:
1440 #if 1
1441         /* make sure we re-use sessions */
1442         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1443 #else
1444         /* This kills performace */
1445 /*      SSL_shutdown(con); A shutdown gets sent in the
1446  *      BIO_free_all(io) procession */
1447 #endif
1448
1449 err:
1450
1451         if (ret >= 0)
1452                 BIO_printf(bio_s_out,"ACCEPT\n");
1453
1454         if (buf != NULL) Free(buf);
1455         if (io != NULL) BIO_free_all(io);
1456 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1457         return(ret);
1458         }
1459
1460 #ifndef NO_RSA
1461 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1462         {
1463         static RSA *rsa_tmp=NULL;
1464
1465         if (rsa_tmp == NULL)
1466                 {
1467                 if (!s_quiet)
1468                         {
1469                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1470                         (void)BIO_flush(bio_err);
1471                         }
1472                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1473                 if (!s_quiet)
1474                         {
1475                         BIO_printf(bio_err,"\n");
1476                         (void)BIO_flush(bio_err);
1477                         }
1478                 }
1479         return(rsa_tmp);
1480         }
1481 #endif