5b079182e00dcc957b4dd2786edb008a92a388a3
[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 /* With IPv6, it looks like Digital has mixed up the proper order of
60    recursive header file inclusion, resulting in the compiler complaining
61    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
62    is needed to have fileno() declared correctly...  So let's define u_int */
63 #if defined(VMS) && defined(__DECC) && !defined(__U_INT)
64 #define __U_INT
65 typedef unsigned int u_int;
66 #endif
67
68 #include <stdio.h>
69 #include <stdlib.h>
70 #include <string.h>
71 #include <sys/types.h>
72 #include <sys/stat.h>
73 #ifdef NO_STDIO
74 #define APPS_WIN16
75 #endif
76 #include <openssl/lhash.h>
77 #include <openssl/bn.h>
78 #define USE_SOCKETS
79 #include "apps.h"
80 #include <openssl/err.h>
81 #include <openssl/pem.h>
82 #include <openssl/x509.h>
83 #include <openssl/ssl.h>
84 #include "s_apps.h"
85
86 #if (defined(VMS) && __VMS_VER < 70000000)
87 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
88 #undef FIONBIO
89 #endif
90
91 #if defined(NO_RSA) && !defined(NO_SSL2)
92 #define NO_SSL2
93 #endif
94
95 #ifndef NO_RSA
96 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
97 #endif
98 static int sv_body(char *hostname, int s, unsigned char *context);
99 static int www_body(char *hostname, int s, unsigned char *context);
100 static void close_accept_socket(void );
101 static void sv_usage(void);
102 static int init_ssl_connection(SSL *s);
103 static void print_stats(BIO *bp,SSL_CTX *ctx);
104 #ifndef NO_DH
105 static DH *load_dh_param(void );
106 static DH *get_dh512(void);
107 #endif
108 /* static void s_server_init(void);*/
109
110 #ifndef S_ISDIR
111 # if defined(_S_IFMT) && defined(_S_IFDIR)
112 #  define S_ISDIR(a)    (((a) & _S_IFMT) == _S_IFDIR)
113 # else
114 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
115 # endif
116 #endif
117
118 #ifndef NO_DH
119 static unsigned char dh512_p[]={
120         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
121         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
122         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
123         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
124         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
125         0x47,0x74,0xE8,0x33,
126         };
127 static unsigned char dh512_g[]={
128         0x02,
129         };
130
131 static DH *get_dh512(void)
132         {
133         DH *dh=NULL;
134
135         if ((dh=DH_new()) == NULL) return(NULL);
136         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
137         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
138         if ((dh->p == NULL) || (dh->g == NULL))
139                 return(NULL);
140         return(dh);
141         }
142 #endif
143
144 /* static int load_CA(SSL_CTX *ctx, char *file);*/
145
146 #undef BUFSIZZ
147 #define BUFSIZZ 16*1024
148 static int bufsize=32;
149 static int accept_socket= -1;
150
151 #define TEST_CERT       "server.pem"
152 #undef PROG
153 #define PROG            s_server_main
154
155 #define DH_PARAM        "server.pem"
156
157 extern int verify_depth;
158
159 static char *cipher=NULL;
160 static int s_server_verify=SSL_VERIFY_NONE;
161 static int s_server_session_id_context = 1; /* anything will do */
162 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
163 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
164 #ifdef FIONBIO
165 static int s_nbio=0;
166 #endif
167 static int s_nbio_test=0;
168 static SSL_CTX *ctx=NULL;
169 static int www=0;
170
171 static BIO *bio_s_out=NULL;
172 static int s_debug=0;
173 static int s_quiet=0;
174
175 #if 0
176 static void s_server_init(void)
177         {
178         cipher=NULL;
179         s_server_verify=SSL_VERIFY_NONE;
180         s_dcert_file=NULL;
181         s_dkey_file=NULL;
182         s_cert_file=TEST_CERT;
183         s_key_file=NULL;
184 #ifdef FIONBIO
185         s_nbio=0;
186 #endif
187         s_nbio_test=0;
188         ctx=NULL;
189         www=0;
190
191         bio_s_out=NULL;
192         s_debug=0;
193         s_quiet=0;
194         }
195 #endif
196
197 static void sv_usage(void)
198         {
199         BIO_printf(bio_err,"usage: s_server [args ...]\n");
200         BIO_printf(bio_err,"\n");
201         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
202         BIO_printf(bio_err," -context arg  - set session ID context\n");
203         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
204         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
205         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
206         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
207         BIO_printf(bio_err," -key arg      - RSA file to use, PEM format assumed, in cert file if\n");
208         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
209         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
210         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
211 #ifdef FIONBIO
212         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
213 #endif
214         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
215         BIO_printf(bio_err," -debug        - Print more output\n");
216         BIO_printf(bio_err," -state        - Print the SSL states\n");
217         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
218         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
219         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
220         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
221         BIO_printf(bio_err," -quiet        - No server output\n");
222         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
223         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
224         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
225         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
226         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
227         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
228         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
229 #ifndef NO_DH
230         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
231 #endif
232         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatability\n");
233         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
234         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
235         }
236
237 static int local_argc=0;
238 static char **local_argv;
239 static int hack=0;
240
241 #ifdef CHARSET_EBCDIC
242 static int ebcdic_new(BIO *bi);
243 static int ebcdic_free(BIO *a);
244 static int ebcdic_read(BIO *b, char *out, int outl);
245 static int ebcdic_write(BIO *b, char *in, int inl);
246 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr);
247 static int ebcdic_gets(BIO *bp, char *buf, int size);
248 static int ebcdic_puts(BIO *bp, char *str);
249
250 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
251 static BIO_METHOD methods_ebcdic=
252         {
253         BIO_TYPE_EBCDIC_FILTER,
254         "EBCDIC/ASCII filter",
255         ebcdic_write,
256         ebcdic_read,
257         ebcdic_puts,
258         ebcdic_gets,
259         ebcdic_ctrl,
260         ebcdic_new,
261         ebcdic_free,
262         };
263
264 typedef struct
265 {
266         size_t  alloced;
267         char    buff[1];
268 } EBCDIC_OUTBUFF;
269
270 BIO_METHOD *BIO_f_ebcdic_filter()
271 {
272         return(&methods_ebcdic);
273 }
274
275 static int ebcdic_new(BIO *bi)
276 {
277         EBCDIC_OUTBUFF *wbuf;
278
279         wbuf = (EBCDIC_OUTBUFF *)Malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
280         wbuf->alloced = 1024;
281         wbuf->buff[0] = '\0';
282
283         bi->ptr=(char *)wbuf;
284         bi->init=1;
285         bi->flags=0;
286         return(1);
287 }
288
289 static int ebcdic_free(BIO *a)
290 {
291         if (a == NULL) return(0);
292         if (a->ptr != NULL)
293                 Free(a->ptr);
294         a->ptr=NULL;
295         a->init=0;
296         a->flags=0;
297         return(1);
298 }
299         
300 static int ebcdic_read(BIO *b, char *out, int outl)
301 {
302         int ret=0;
303
304         if (out == NULL || outl == 0) return(0);
305         if (b->next_bio == NULL) return(0);
306
307         ret=BIO_read(b->next_bio,out,outl);
308         if (ret > 0)
309                 ascii2ebcdic(out,out,ret);
310         return(ret);
311 }
312
313 static int ebcdic_write(BIO *b, char *in, int inl)
314 {
315         EBCDIC_OUTBUFF *wbuf;
316         int ret=0;
317         int num;
318         unsigned char n;
319
320         if ((in == NULL) || (inl <= 0)) return(0);
321         if (b->next_bio == NULL) return(0);
322
323         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
324
325         if (inl > (num = wbuf->alloced))
326         {
327                 num = num + num;  /* double the size */
328                 if (num < inl)
329                         num = inl;
330                 Free((char*)wbuf);
331                 wbuf=(EBCDIC_OUTBUFF *)Malloc(sizeof(EBCDIC_OUTBUFF) + num);
332
333                 wbuf->alloced = num;
334                 wbuf->buff[0] = '\0';
335
336                 b->ptr=(char *)wbuf;
337         }
338
339         ebcdic2ascii(wbuf->buff, in, inl);
340
341         ret=BIO_write(b->next_bio, wbuf->buff, inl);
342
343         return(ret);
344 }
345
346 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr)
347 {
348         long ret;
349
350         if (b->next_bio == NULL) return(0);
351         switch (cmd)
352         {
353         case BIO_CTRL_DUP:
354                 ret=0L;
355                 break;
356         default:
357                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
358                 break;
359         }
360         return(ret);
361 }
362
363 static int ebcdic_gets(BIO *bp, char *buf, int size)
364 {
365         int i, ret;
366         if (bp->next_bio == NULL) return(0);
367 /*      return(BIO_gets(bp->next_bio,buf,size));*/
368         for (i=0; i<size-1; ++i)
369         {
370                 ret = ebcdic_read(bp,&buf[i],1);
371                 if (ret <= 0)
372                         break;
373                 else if (buf[i] == '\n')
374                 {
375                         ++i;
376                         break;
377                 }
378         }
379         if (i < size)
380                 buf[i] = '\0';
381         return (ret < 0 && i == 0) ? ret : i;
382 }
383
384 static int ebcdic_puts(BIO *bp, char *str)
385 {
386         if (bp->next_bio == NULL) return(0);
387         return ebcdic_write(bp, str, strlen(str));
388 }
389 #endif
390
391 int MAIN(int argc, char *argv[])
392         {
393         short port=PORT;
394         char *CApath=NULL,*CAfile=NULL;
395         char *context = NULL;
396         int badop=0,bugs=0;
397         int ret=1;
398         int off=0;
399         int no_tmp_rsa=0,no_dhe=0,nocert=0;
400         int state=0;
401         SSL_METHOD *meth=NULL;
402 #ifndef NO_DH
403         DH *dh=NULL;
404 #endif
405
406 #if !defined(NO_SSL2) && !defined(NO_SSL3)
407         meth=SSLv23_server_method();
408 #elif !defined(NO_SSL3)
409         meth=SSLv3_server_method();
410 #elif !defined(NO_SSL2)
411         meth=SSLv2_server_method();
412 #endif
413
414         local_argc=argc;
415         local_argv=argv;
416
417         apps_startup();
418         s_quiet=0;
419         s_debug=0;
420
421         if (bio_err == NULL)
422                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
423
424         verify_depth=0;
425 #ifdef FIONBIO
426         s_nbio=0;
427 #endif
428         s_nbio_test=0;
429
430         argc--;
431         argv++;
432
433         while (argc >= 1)
434                 {
435                 if      ((strcmp(*argv,"-port") == 0) ||
436                          (strcmp(*argv,"-accept") == 0))
437                         {
438                         if (--argc < 1) goto bad;
439                         if (!extract_port(*(++argv),&port))
440                                 goto bad;
441                         }
442                 else if (strcmp(*argv,"-verify") == 0)
443                         {
444                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
445                         if (--argc < 1) goto bad;
446                         verify_depth=atoi(*(++argv));
447                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
448                         }
449                 else if (strcmp(*argv,"-Verify") == 0)
450                         {
451                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
452                                 SSL_VERIFY_CLIENT_ONCE;
453                         if (--argc < 1) goto bad;
454                         verify_depth=atoi(*(++argv));
455                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
456                         }
457                 else if (strcmp(*argv,"-context") == 0)
458                         {
459                         if (--argc < 1) goto bad;
460                         context= *(++argv);
461                         }
462                 else if (strcmp(*argv,"-cert") == 0)
463                         {
464                         if (--argc < 1) goto bad;
465                         s_cert_file= *(++argv);
466                         }
467                 else if (strcmp(*argv,"-key") == 0)
468                         {
469                         if (--argc < 1) goto bad;
470                         s_key_file= *(++argv);
471                         }
472                 else if (strcmp(*argv,"-dcert") == 0)
473                         {
474                         if (--argc < 1) goto bad;
475                         s_dcert_file= *(++argv);
476                         }
477                 else if (strcmp(*argv,"-dkey") == 0)
478                         {
479                         if (--argc < 1) goto bad;
480                         s_dkey_file= *(++argv);
481                         }
482                 else if (strcmp(*argv,"-nocert") == 0)
483                         {
484                         nocert=1;
485                         }
486                 else if (strcmp(*argv,"-CApath") == 0)
487                         {
488                         if (--argc < 1) goto bad;
489                         CApath= *(++argv);
490                         }
491                 else if (strcmp(*argv,"-cipher") == 0)
492                         {
493                         if (--argc < 1) goto bad;
494                         cipher= *(++argv);
495                         }
496                 else if (strcmp(*argv,"-CAfile") == 0)
497                         {
498                         if (--argc < 1) goto bad;
499                         CAfile= *(++argv);
500                         }
501 #ifdef FIONBIO  
502                 else if (strcmp(*argv,"-nbio") == 0)
503                         { s_nbio=1; }
504 #endif
505                 else if (strcmp(*argv,"-nbio_test") == 0)
506                         {
507 #ifdef FIONBIO  
508                         s_nbio=1;
509 #endif
510                         s_nbio_test=1;
511                         }
512                 else if (strcmp(*argv,"-debug") == 0)
513                         { s_debug=1; }
514                 else if (strcmp(*argv,"-hack") == 0)
515                         { hack=1; }
516                 else if (strcmp(*argv,"-state") == 0)
517                         { state=1; }
518                 else if (strcmp(*argv,"-quiet") == 0)
519                         { s_quiet=1; }
520                 else if (strcmp(*argv,"-bugs") == 0)
521                         { bugs=1; }
522                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
523                         { no_tmp_rsa=1; }
524                 else if (strcmp(*argv,"-no_dhe") == 0)
525                         { no_dhe=1; }
526                 else if (strcmp(*argv,"-www") == 0)
527                         { www=1; }
528                 else if (strcmp(*argv,"-WWW") == 0)
529                         { www=2; }
530                 else if (strcmp(*argv,"-no_ssl2") == 0)
531                         { off|=SSL_OP_NO_SSLv2; }
532                 else if (strcmp(*argv,"-no_ssl3") == 0)
533                         { off|=SSL_OP_NO_SSLv3; }
534                 else if (strcmp(*argv,"-no_tls1") == 0)
535                         { off|=SSL_OP_NO_TLSv1; }
536 #ifndef NO_SSL2
537                 else if (strcmp(*argv,"-ssl2") == 0)
538                         { meth=SSLv2_server_method(); }
539 #endif
540 #ifndef NO_SSL3
541                 else if (strcmp(*argv,"-ssl3") == 0)
542                         { meth=SSLv3_server_method(); }
543 #endif
544 #ifndef NO_TLS1
545                 else if (strcmp(*argv,"-tls1") == 0)
546                         { meth=TLSv1_server_method(); }
547 #endif
548                 else
549                         {
550                         BIO_printf(bio_err,"unknown option %s\n",*argv);
551                         badop=1;
552                         break;
553                         }
554                 argc--;
555                 argv++;
556                 }
557         if (badop)
558                 {
559 bad:
560                 sv_usage();
561                 goto end;
562                 }
563
564         if (bio_s_out == NULL)
565                 {
566                 if (s_quiet && !s_debug)
567                         {
568                         bio_s_out=BIO_new(BIO_s_null());
569                         }
570                 else
571                         {
572                         if (bio_s_out == NULL)
573                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
574                         }
575                 }
576
577 #if !defined(NO_RSA) || !defined(NO_DSA)
578         if (nocert)
579 #endif
580                 {
581                 s_cert_file=NULL;
582                 s_key_file=NULL;
583                 s_dcert_file=NULL;
584                 s_dkey_file=NULL;
585                 }
586
587         SSL_load_error_strings();
588         SSLeay_add_ssl_algorithms();
589
590         ctx=SSL_CTX_new(meth);
591         if (ctx == NULL)
592                 {
593                 ERR_print_errors(bio_err);
594                 goto end;
595                 }
596
597         SSL_CTX_set_quiet_shutdown(ctx,1);
598         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
599         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
600         SSL_CTX_set_options(ctx,off);
601         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NON_EXPORT_FIRST);
602
603         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
604
605         SSL_CTX_sess_set_cache_size(ctx,128);
606
607 #if 0
608         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
609 #endif
610
611 #if 0
612         if (s_cert_file == NULL)
613                 {
614                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
615                 goto end;
616                 }
617 #endif
618
619         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
620                 (!SSL_CTX_set_default_verify_paths(ctx)))
621                 {
622                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
623                 ERR_print_errors(bio_err);
624                 /* goto end; */
625                 }
626
627 #ifndef NO_DH
628         if (!no_dhe)
629                 {
630                 /* EAY EAY EAY evil hack */
631                 dh=load_dh_param();
632                 if (dh != NULL)
633                         {
634                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
635                         }
636                 else
637                         {
638                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
639                         dh=get_dh512();
640                         }
641                 (void)BIO_flush(bio_s_out);
642
643                 SSL_CTX_set_tmp_dh(ctx,dh);
644                 DH_free(dh);
645                 }
646 #endif
647         
648         if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
649                 goto end;
650         if (s_dcert_file != NULL)
651                 {
652                 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
653                         goto end;
654                 }
655
656 #ifndef NO_RSA
657 #if 1
658         SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
659 #else
660         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
661                 {
662                 RSA *rsa;
663
664                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
665                 BIO_flush(bio_s_out);
666
667                 rsa=RSA_generate_key(512,RSA_F4,NULL);
668
669                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
670                         {
671                         ERR_print_errors(bio_err);
672                         goto end;
673                         }
674                 RSA_free(rsa);
675                 BIO_printf(bio_s_out,"\n");
676                 }
677 #endif
678 #endif
679
680         if (cipher != NULL)
681                 SSL_CTX_set_cipher_list(ctx,cipher);
682         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
683         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
684                 sizeof s_server_session_id_context);
685
686         SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
687
688         BIO_printf(bio_s_out,"ACCEPT\n");
689         if (www)
690                 do_server(port,&accept_socket,www_body, context);
691         else
692                 do_server(port,&accept_socket,sv_body, context);
693         print_stats(bio_s_out,ctx);
694         ret=0;
695 end:
696         if (ctx != NULL) SSL_CTX_free(ctx);
697         if (bio_s_out != NULL)
698                 {
699                 BIO_free(bio_s_out);
700                 bio_s_out=NULL;
701                 }
702         EXIT(ret);
703         }
704
705 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
706         {
707         BIO_printf(bio,"%4ld items in the session cache\n",
708                 SSL_CTX_sess_number(ssl_ctx));
709         BIO_printf(bio,"%4d client connects (SSL_connect())\n",
710                 SSL_CTX_sess_connect(ssl_ctx));
711         BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
712                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
713         BIO_printf(bio,"%4d client connects that finished\n",
714                 SSL_CTX_sess_connect_good(ssl_ctx));
715         BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
716                 SSL_CTX_sess_accept(ssl_ctx));
717         BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
718                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
719         BIO_printf(bio,"%4d server accepts that finished\n",
720                 SSL_CTX_sess_accept_good(ssl_ctx));
721         BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
722         BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
723         BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
724         BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
725         BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
726                 SSL_CTX_sess_cache_full(ssl_ctx),
727                 SSL_CTX_sess_get_cache_size(ssl_ctx));
728         }
729
730 static int sv_body(char *hostname, int s, unsigned char *context)
731         {
732         char *buf=NULL;
733         fd_set readfds;
734         int ret=1,width;
735         int k,i;
736         unsigned long l;
737         SSL *con=NULL;
738         BIO *sbio;
739
740         if ((buf=Malloc(bufsize)) == NULL)
741                 {
742                 BIO_printf(bio_err,"out of memory\n");
743                 goto err;
744                 }
745 #ifdef FIONBIO  
746         if (s_nbio)
747                 {
748                 unsigned long sl=1;
749
750                 if (!s_quiet)
751                         BIO_printf(bio_err,"turning on non blocking io\n");
752                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
753                         ERR_print_errors(bio_err);
754                 }
755 #endif
756
757         if (con == NULL) {
758                 con=(SSL *)SSL_new(ctx);
759                 if(context)
760                       SSL_set_session_id_context(con, context,
761                                                  strlen((char *)context));
762         }
763         SSL_clear(con);
764
765         sbio=BIO_new_socket(s,BIO_NOCLOSE);
766         if (s_nbio_test)
767                 {
768                 BIO *test;
769
770                 test=BIO_new(BIO_f_nbio_test());
771                 sbio=BIO_push(test,sbio);
772                 }
773         SSL_set_bio(con,sbio,sbio);
774         SSL_set_accept_state(con);
775         /* SSL_set_fd(con,s); */
776
777         if (s_debug)
778                 {
779                 con->debug=1;
780                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
781                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
782                 }
783
784         width=s+1;
785         for (;;)
786                 {
787                 FD_ZERO(&readfds);
788 #ifndef WINDOWS
789                 FD_SET(fileno(stdin),&readfds);
790 #endif
791                 FD_SET(s,&readfds);
792                 /* Note: under VMS with SOCKETSHR the second parameter is
793                  * currently of type (int *) whereas under other systems
794                  * it is (void *) if you don't have a cast it will choke
795                  * the compiler: if you do have a cast then you can either
796                  * go for (int *) or (void *).
797                  */
798                 i=select(width,(void *)&readfds,NULL,NULL,NULL);
799                 if (i <= 0) continue;
800                 if (FD_ISSET(fileno(stdin),&readfds))
801                         {
802                         i=read(fileno(stdin),buf,bufsize);
803                         if (!s_quiet)
804                                 {
805                                 if ((i <= 0) || (buf[0] == 'Q'))
806                                         {
807                                         BIO_printf(bio_s_out,"DONE\n");
808                                         SHUTDOWN(s);
809                                         close_accept_socket();
810                                         ret= -11;
811                                         goto err;
812                                         }
813                                 if ((i <= 0) || (buf[0] == 'q'))
814                                         {
815                                         BIO_printf(bio_s_out,"DONE\n");
816                                         SHUTDOWN(s);
817         /*                              close_accept_socket();
818                                         ret= -11;*/
819                                         goto err;
820                                         }
821                                 if ((buf[0] == 'r') && 
822                                         ((buf[1] == '\n') || (buf[1] == '\r')))
823                                         {
824                                         SSL_renegotiate(con);
825                                         i=SSL_do_handshake(con);
826                                         printf("SSL_do_handshake -> %d\n",i);
827                                         i=0; /*13; */
828                                         continue;
829                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
830                                         }
831                                 if ((buf[0] == 'R') &&
832                                         ((buf[1] == '\n') || (buf[1] == '\r')))
833                                         {
834                                         SSL_set_verify(con,
835                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
836                                         SSL_renegotiate(con);
837                                         i=SSL_do_handshake(con);
838                                         printf("SSL_do_handshake -> %d\n",i);
839                                         i=0; /* 13; */
840                                         continue;
841                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
842                                         }
843                                 if (buf[0] == 'P')
844                                         {
845                                         static char *str="Lets print some clear text\n";
846                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
847                                         }
848                                 if (buf[0] == 'S')
849                                         {
850                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
851                                         }
852                                 }
853 #ifdef CHARSET_EBCDIC
854                         ebcdic2ascii(buf,buf,i);
855 #endif
856                         l=k=0;
857                         for (;;)
858                                 {
859                                 /* should do a select for the write */
860 #ifdef RENEG
861 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
862 #endif
863                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
864                                 switch (SSL_get_error(con,k))
865                                         {
866                                 case SSL_ERROR_NONE:
867                                         break;
868                                 case SSL_ERROR_WANT_WRITE:
869                                 case SSL_ERROR_WANT_READ:
870                                 case SSL_ERROR_WANT_X509_LOOKUP:
871                                         BIO_printf(bio_s_out,"Write BLOCK\n");
872                                         break;
873                                 case SSL_ERROR_SYSCALL:
874                                 case SSL_ERROR_SSL:
875                                         BIO_printf(bio_s_out,"ERROR\n");
876                                         ERR_print_errors(bio_err);
877                                         ret=1;
878                                         goto err;
879                                         /* break; */
880                                 case SSL_ERROR_ZERO_RETURN:
881                                         BIO_printf(bio_s_out,"DONE\n");
882                                         ret=1;
883                                         goto err;
884                                         }
885                                 l+=k;
886                                 i-=k;
887                                 if (i <= 0) break;
888                                 }
889                         }
890                 if (FD_ISSET(s,&readfds))
891                         {
892                         if (!SSL_is_init_finished(con))
893                                 {
894                                 i=init_ssl_connection(con);
895                                 
896                                 if (i < 0)
897                                         {
898                                         ret=0;
899                                         goto err;
900                                         }
901                                 else if (i == 0)
902                                         {
903                                         ret=1;
904                                         goto err;
905                                         }
906                                 }
907                         else
908                                 {
909 again:  
910                                 i=SSL_read(con,(char *)buf,bufsize);
911                                 switch (SSL_get_error(con,i))
912                                         {
913                                 case SSL_ERROR_NONE:
914 #ifdef CHARSET_EBCDIC
915                                         ascii2ebcdic(buf,buf,i);
916 #endif
917                                         write(fileno(stdout),buf,
918                                                 (unsigned int)i);
919                                         if (SSL_pending(con)) goto again;
920                                         break;
921                                 case SSL_ERROR_WANT_WRITE:
922                                 case SSL_ERROR_WANT_READ:
923                                 case SSL_ERROR_WANT_X509_LOOKUP:
924                                         BIO_printf(bio_s_out,"Read BLOCK\n");
925                                         break;
926                                 case SSL_ERROR_SYSCALL:
927                                 case SSL_ERROR_SSL:
928                                         BIO_printf(bio_s_out,"ERROR\n");
929                                         ERR_print_errors(bio_err);
930                                         ret=1;
931                                         goto err;
932                                 case SSL_ERROR_ZERO_RETURN:
933                                         BIO_printf(bio_s_out,"DONE\n");
934                                         ret=1;
935                                         goto err;
936                                         }
937                                 }
938                         }
939                 }
940 err:
941         BIO_printf(bio_s_out,"shutting down SSL\n");
942 #if 1
943         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
944 #else
945         SSL_shutdown(con);
946 #endif
947         if (con != NULL) SSL_free(con);
948         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
949         if (buf != NULL)
950                 {
951                 memset(buf,0,bufsize);
952                 Free(buf);
953                 }
954         if (ret >= 0)
955                 BIO_printf(bio_s_out,"ACCEPT\n");
956         return(ret);
957         }
958
959 static void close_accept_socket(void)
960         {
961         BIO_printf(bio_err,"shutdown accept socket\n");
962         if (accept_socket >= 0)
963                 {
964                 SHUTDOWN2(accept_socket);
965                 }
966         }
967
968 static int init_ssl_connection(SSL *con)
969         {
970         int i;
971         const char *str;
972         X509 *peer;
973         long verify_error;
974         MS_STATIC char buf[BUFSIZ];
975
976         if ((i=SSL_accept(con)) <= 0)
977                 {
978                 if (BIO_sock_should_retry(i))
979                         {
980                         BIO_printf(bio_s_out,"DELAY\n");
981                         return(1);
982                         }
983
984                 BIO_printf(bio_err,"ERROR\n");
985                 verify_error=SSL_get_verify_result(con);
986                 if (verify_error != X509_V_OK)
987                         {
988                         BIO_printf(bio_err,"verify error:%s\n",
989                                 X509_verify_cert_error_string(verify_error));
990                         }
991                 else
992                         ERR_print_errors(bio_err);
993                 return(0);
994                 }
995
996         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
997
998         peer=SSL_get_peer_certificate(con);
999         if (peer != NULL)
1000                 {
1001                 BIO_printf(bio_s_out,"Client certificate\n");
1002                 PEM_write_bio_X509(bio_s_out,peer);
1003                 X509_NAME_oneline(X509_get_subject_name(peer),buf,BUFSIZ);
1004                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1005                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,BUFSIZ);
1006                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1007                 X509_free(peer);
1008                 }
1009
1010         if (SSL_get_shared_ciphers(con,buf,BUFSIZ) != NULL)
1011                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1012         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1013         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1014         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1015         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1016                 TLS1_FLAGS_TLS_PADDING_BUG)
1017                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1018
1019         return(1);
1020         }
1021
1022 #ifndef NO_DH
1023 static DH *load_dh_param(void)
1024         {
1025         DH *ret=NULL;
1026         BIO *bio;
1027
1028         if ((bio=BIO_new_file(DH_PARAM,"r")) == NULL)
1029                 goto err;
1030         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1031 err:
1032         if (bio != NULL) BIO_free(bio);
1033         return(ret);
1034         }
1035 #endif
1036
1037 #if 0
1038 static int load_CA(SSL_CTX *ctx, char *file)
1039         {
1040         FILE *in;
1041         X509 *x=NULL;
1042
1043         if ((in=fopen(file,"r")) == NULL)
1044                 return(0);
1045
1046         for (;;)
1047                 {
1048                 if (PEM_read_X509(in,&x,NULL) == NULL)
1049                         break;
1050                 SSL_CTX_add_client_CA(ctx,x);
1051                 }
1052         if (x != NULL) X509_free(x);
1053         fclose(in);
1054         return(1);
1055         }
1056 #endif
1057
1058 static int www_body(char *hostname, int s, unsigned char *context)
1059         {
1060         char *buf=NULL;
1061         int ret=1;
1062         int i,j,k,blank,dot;
1063         struct stat st_buf;
1064         SSL *con;
1065         SSL_CIPHER *c;
1066         BIO *io,*ssl_bio,*sbio;
1067         long total_bytes;
1068
1069         buf=Malloc(bufsize);
1070         if (buf == NULL) return(0);
1071         io=BIO_new(BIO_f_buffer());
1072         ssl_bio=BIO_new(BIO_f_ssl());
1073         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1074
1075 #ifdef FIONBIO  
1076         if (s_nbio)
1077                 {
1078                 unsigned long sl=1;
1079
1080                 if (!s_quiet)
1081                         BIO_printf(bio_err,"turning on non blocking io\n");
1082                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1083                         ERR_print_errors(bio_err);
1084                 }
1085 #endif
1086
1087         /* lets make the output buffer a reasonable size */
1088         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1089
1090         if ((con=(SSL *)SSL_new(ctx)) == NULL) goto err;
1091         if(context) SSL_set_session_id_context(con, context,
1092                                                strlen((char *)context));
1093
1094         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1095         if (s_nbio_test)
1096                 {
1097                 BIO *test;
1098
1099                 test=BIO_new(BIO_f_nbio_test());
1100                 sbio=BIO_push(test,sbio);
1101                 }
1102         SSL_set_bio(con,sbio,sbio);
1103         SSL_set_accept_state(con);
1104
1105         /* SSL_set_fd(con,s); */
1106         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1107         BIO_push(io,ssl_bio);
1108 #ifdef CHARSET_EBCDIC
1109         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1110 #endif
1111
1112         if (s_debug)
1113                 {
1114                 con->debug=1;
1115                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1116                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1117                 }
1118
1119         blank=0;
1120         for (;;)
1121                 {
1122                 if (hack)
1123                         {
1124                         i=SSL_accept(con);
1125
1126                         switch (SSL_get_error(con,i))
1127                                 {
1128                         case SSL_ERROR_NONE:
1129                                 break;
1130                         case SSL_ERROR_WANT_WRITE:
1131                         case SSL_ERROR_WANT_READ:
1132                         case SSL_ERROR_WANT_X509_LOOKUP:
1133                                 continue;
1134                         case SSL_ERROR_SYSCALL:
1135                         case SSL_ERROR_SSL:
1136                         case SSL_ERROR_ZERO_RETURN:
1137                                 ret=1;
1138                                 goto err;
1139                                 /* break; */
1140                                 }
1141
1142                         SSL_renegotiate(con);
1143                         SSL_write(con,NULL,0);
1144                         }
1145
1146                 i=BIO_gets(io,buf,bufsize-1);
1147                 if (i < 0) /* error */
1148                         {
1149                         if (!BIO_should_retry(io))
1150                                 {
1151                                 if (!s_quiet)
1152                                         ERR_print_errors(bio_err);
1153                                 goto err;
1154                                 }
1155                         else
1156                                 {
1157                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1158 #ifndef MSDOS
1159                                 sleep(1);
1160 #endif
1161                                 continue;
1162                                 }
1163                         }
1164                 else if (i == 0) /* end of input */
1165                         {
1166                         ret=1;
1167                         goto end;
1168                         }
1169
1170                 /* else we have data */
1171                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1172                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1173                         {
1174                         char *p;
1175                         X509 *peer;
1176                         STACK_OF(SSL_CIPHER) *sk;
1177                         static char *space="                          ";
1178
1179                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1180                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1181                         BIO_puts(io,"<pre>\n");
1182 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1183                         BIO_puts(io,"\n");
1184                         for (i=0; i<local_argc; i++)
1185                                 {
1186                                 BIO_puts(io,local_argv[i]);
1187                                 BIO_write(io," ",1);
1188                                 }
1189                         BIO_puts(io,"\n");
1190
1191                         /* The following is evil and should not really
1192                          * be done */
1193                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1194                         sk=SSL_get_ciphers(con);
1195                         j=sk_SSL_CIPHER_num(sk);
1196                         for (i=0; i<j; i++)
1197                                 {
1198                                 c=sk_SSL_CIPHER_value(sk,i);
1199                                 BIO_printf(io,"%-11s:%-25s",
1200                                         SSL_CIPHER_get_version(c),
1201                                         SSL_CIPHER_get_name(c));
1202                                 if ((((i+1)%2) == 0) && (i+1 != j))
1203                                         BIO_puts(io,"\n");
1204                                 }
1205                         BIO_puts(io,"\n");
1206                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1207                         if (p != NULL)
1208                                 {
1209                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1210                                 j=i=0;
1211                                 while (*p)
1212                                         {
1213                                         if (*p == ':')
1214                                                 {
1215                                                 BIO_write(io,space,26-j);
1216                                                 i++;
1217                                                 j=0;
1218                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1219                                                 }
1220                                         else
1221                                                 {
1222                                                 BIO_write(io,p,1);
1223                                                 j++;
1224                                                 }
1225                                         p++;
1226                                         }
1227                                 BIO_puts(io,"\n");
1228                                 }
1229                         BIO_printf(io,((con->hit)
1230                                 ?"---\nReused, "
1231                                 :"---\nNew, "));
1232                         c=SSL_get_current_cipher(con);
1233                         BIO_printf(io,"%s, Cipher is %s\n",
1234                                 SSL_CIPHER_get_version(c),
1235                                 SSL_CIPHER_get_name(c));
1236                         SSL_SESSION_print(io,SSL_get_session(con));
1237                         BIO_printf(io,"---\n");
1238                         print_stats(io,SSL_get_SSL_CTX(con));
1239                         BIO_printf(io,"---\n");
1240                         peer=SSL_get_peer_certificate(con);
1241                         if (peer != NULL)
1242                                 {
1243                                 BIO_printf(io,"Client certificate\n");
1244                                 X509_print(io,peer);
1245                                 PEM_write_bio_X509(io,peer);
1246                                 }
1247                         else
1248                                 BIO_puts(io,"no client certificate available\n");
1249                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1250                         break;
1251                         }
1252                 else if ((www == 2) && (strncmp("GET /",buf,5) == 0))
1253                         {
1254                         BIO *file;
1255                         char *p,*e;
1256                         static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1257
1258                         /* skip the '/' */
1259                         p= &(buf[5]);
1260                         dot=0;
1261                         for (e=p; *e != '\0'; e++)
1262                                 {
1263                                 if (e[0] == ' ') break;
1264                                 if (    (e[0] == '.') &&
1265                                         (strncmp(&(e[-1]),"/../",4) == 0))
1266                                         dot=1;
1267                                 }
1268                         
1269
1270                         if (*e == '\0')
1271                                 {
1272                                 BIO_puts(io,text);
1273                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1274                                 break;
1275                                 }
1276                         *e='\0';
1277
1278                         if (dot)
1279                                 {
1280                                 BIO_puts(io,text);
1281                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1282                                 break;
1283                                 }
1284
1285                         if (*p == '/')
1286                                 {
1287                                 BIO_puts(io,text);
1288                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1289                                 break;
1290                                 }
1291
1292                         /* append if a directory lookup */
1293                         if (e[-1] == '/')
1294                                 strcat(p,"index.html");
1295
1296                         /* if a directory, do the index thang */
1297                         if (stat(p,&st_buf) < 0)
1298                                 {
1299                                 BIO_puts(io,text);
1300                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1301                                 ERR_print_errors(io);
1302                                 break;
1303                                 }
1304                         if (S_ISDIR(st_buf.st_mode))
1305                                 {
1306                                 strcat(p,"/index.html");
1307                                 }
1308
1309                         if ((file=BIO_new_file(p,"r")) == NULL)
1310                                 {
1311                                 BIO_puts(io,text);
1312                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1313                                 ERR_print_errors(io);
1314                                 break;
1315                                 }
1316
1317                         if (!s_quiet)
1318                                 BIO_printf(bio_err,"FILE:%s\n",p);
1319
1320                         i=strlen(p);
1321                         if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1322                                 ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1323                                 ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1324                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1325                         else
1326                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1327                         /* send the file */
1328                         total_bytes=0;
1329                         for (;;)
1330                                 {
1331                                 i=BIO_read(file,buf,bufsize);
1332                                 if (i <= 0) break;
1333
1334 #ifdef RENEG
1335                                 total_bytes+=i;
1336                                 fprintf(stderr,"%d\n",i);
1337                                 if (total_bytes > 3*1024)
1338                                         {
1339                                         total_bytes=0;
1340                                         fprintf(stderr,"RENEGOTIATE\n");
1341                                         SSL_renegotiate(con);
1342                                         }
1343 #endif
1344
1345                                 for (j=0; j<i; )
1346                                         {
1347 #ifdef RENEG
1348 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1349 #endif
1350                                         k=BIO_write(io,&(buf[j]),i-j);
1351                                         if (k <= 0)
1352                                                 {
1353                                                 if (!BIO_should_retry(io))
1354                                                         goto write_error;
1355                                                 else
1356                                                         {
1357                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1358                                                         }
1359                                                 }
1360                                         else
1361                                                 {
1362                                                 j+=k;
1363                                                 }
1364                                         }
1365                                 }
1366 write_error:
1367                         BIO_free(file);
1368                         break;
1369                         }
1370                 }
1371
1372         for (;;)
1373                 {
1374                 i=(int)BIO_flush(io);
1375                 if (i <= 0)
1376                         {
1377                         if (!BIO_should_retry(io))
1378                                 break;
1379                         }
1380                 else
1381                         break;
1382                 }
1383 end:
1384 #if 1
1385         /* make sure we re-use sessions */
1386         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1387 #else
1388         /* This kills performace */
1389 /*      SSL_shutdown(con); A shutdown gets sent in the
1390  *      BIO_free_all(io) procession */
1391 #endif
1392
1393 err:
1394
1395         if (ret >= 0)
1396                 BIO_printf(bio_s_out,"ACCEPT\n");
1397
1398         if (buf != NULL) Free(buf);
1399         if (io != NULL) BIO_free_all(io);
1400 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1401         return(ret);
1402         }
1403
1404 #ifndef NO_RSA
1405 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1406         {
1407         static RSA *rsa_tmp=NULL;
1408
1409         if (rsa_tmp == NULL)
1410                 {
1411                 if (!s_quiet)
1412                         {
1413                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1414                         (void)BIO_flush(bio_err);
1415                         }
1416                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1417                 if (!s_quiet)
1418                         {
1419                         BIO_printf(bio_err,"\n");
1420                         (void)BIO_flush(bio_err);
1421                         }
1422                 }
1423         return(rsa_tmp);
1424         }
1425 #endif