ac86a8ab4dd31b97f6b909c86763bbd98ef4f7ec
[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 #ifndef NO_RSA
98 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
99 #endif
100 static int sv_body(char *hostname, int s, unsigned char *context);
101 static int www_body(char *hostname, int s, unsigned char *context);
102 static void close_accept_socket(void );
103 static void sv_usage(void);
104 static int init_ssl_connection(SSL *s);
105 static void print_stats(BIO *bp,SSL_CTX *ctx);
106 #ifndef NO_DH
107 static DH *load_dh_param(char *dhfile);
108 static DH *get_dh512(void);
109 #endif
110 #ifdef MONOLITH
111 static void s_server_init(void);
112 #endif
113
114 #ifndef S_ISDIR
115 # if defined(_S_IFMT) && defined(_S_IFDIR)
116 #  define S_ISDIR(a)    (((a) & _S_IFMT) == _S_IFDIR)
117 # else
118 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
119 # endif
120 #endif
121
122 #ifndef NO_DH
123 static unsigned char dh512_p[]={
124         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
125         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
126         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
127         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
128         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
129         0x47,0x74,0xE8,0x33,
130         };
131 static unsigned char dh512_g[]={
132         0x02,
133         };
134
135 static DH *get_dh512(void)
136         {
137         DH *dh=NULL;
138
139         if ((dh=DH_new()) == NULL) return(NULL);
140         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
141         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
142         if ((dh->p == NULL) || (dh->g == NULL))
143                 return(NULL);
144         return(dh);
145         }
146 #endif
147
148 /* static int load_CA(SSL_CTX *ctx, char *file);*/
149
150 #undef BUFSIZZ
151 #define BUFSIZZ 16*1024
152 static int bufsize=BUFSIZZ;
153 static int accept_socket= -1;
154
155 #define TEST_CERT       "server.pem"
156 #undef PROG
157 #define PROG            s_server_main
158
159 extern int verify_depth;
160
161 static char *cipher=NULL;
162 static int s_server_verify=SSL_VERIFY_NONE;
163 static int s_server_session_id_context = 1; /* anything will do */
164 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
165 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
166 #ifdef FIONBIO
167 static int s_nbio=0;
168 #endif
169 static int s_nbio_test=0;
170 int s_crlf=0;
171 static SSL_CTX *ctx=NULL;
172 static int www=0;
173
174 static BIO *bio_s_out=NULL;
175 static int s_debug=0;
176 static int s_quiet=0;
177
178 static int hack=0;
179
180 #ifdef MONOLITH
181 static void s_server_init(void)
182         {
183         accept_socket=-1;
184         cipher=NULL;
185         s_server_verify=SSL_VERIFY_NONE;
186         s_dcert_file=NULL;
187         s_dkey_file=NULL;
188         s_cert_file=TEST_CERT;
189         s_key_file=NULL;
190 #ifdef FIONBIO
191         s_nbio=0;
192 #endif
193         s_nbio_test=0;
194         ctx=NULL;
195         www=0;
196
197         bio_s_out=NULL;
198         s_debug=0;
199         s_quiet=0;
200         hack=0;
201         }
202 #endif
203
204 static void sv_usage(void)
205         {
206         BIO_printf(bio_err,"usage: s_server [args ...]\n");
207         BIO_printf(bio_err,"\n");
208         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
209         BIO_printf(bio_err," -context arg  - set session ID context\n");
210         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
211         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
212         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
213         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
214         BIO_printf(bio_err," -key arg      - Private Key file to use, PEM format assumed, in cert file if\n");
215         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
216         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
217         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
218         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
219         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
220 #ifdef FIONBIO
221         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
222 #endif
223         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
224         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
225         BIO_printf(bio_err," -debug        - Print more output\n");
226         BIO_printf(bio_err," -state        - Print the SSL states\n");
227         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
228         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
229         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
230         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
231         BIO_printf(bio_err," -quiet        - No server output\n");
232         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
233         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
234         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
235         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
236         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
237         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
238         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
239 #ifndef NO_DH
240         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
241 #endif
242         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatability\n");
243         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
244         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
245         }
246
247 static int local_argc=0;
248 static char **local_argv;
249
250 #ifdef CHARSET_EBCDIC
251 static int ebcdic_new(BIO *bi);
252 static int ebcdic_free(BIO *a);
253 static int ebcdic_read(BIO *b, char *out, int outl);
254 static int ebcdic_write(BIO *b, char *in, int inl);
255 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr);
256 static int ebcdic_gets(BIO *bp, char *buf, int size);
257 static int ebcdic_puts(BIO *bp, char *str);
258
259 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
260 static BIO_METHOD methods_ebcdic=
261         {
262         BIO_TYPE_EBCDIC_FILTER,
263         "EBCDIC/ASCII filter",
264         ebcdic_write,
265         ebcdic_read,
266         ebcdic_puts,
267         ebcdic_gets,
268         ebcdic_ctrl,
269         ebcdic_new,
270         ebcdic_free,
271         };
272
273 typedef struct
274 {
275         size_t  alloced;
276         char    buff[1];
277 } EBCDIC_OUTBUFF;
278
279 BIO_METHOD *BIO_f_ebcdic_filter()
280 {
281         return(&methods_ebcdic);
282 }
283
284 static int ebcdic_new(BIO *bi)
285 {
286         EBCDIC_OUTBUFF *wbuf;
287
288         wbuf = (EBCDIC_OUTBUFF *)Malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
289         wbuf->alloced = 1024;
290         wbuf->buff[0] = '\0';
291
292         bi->ptr=(char *)wbuf;
293         bi->init=1;
294         bi->flags=0;
295         return(1);
296 }
297
298 static int ebcdic_free(BIO *a)
299 {
300         if (a == NULL) return(0);
301         if (a->ptr != NULL)
302                 Free(a->ptr);
303         a->ptr=NULL;
304         a->init=0;
305         a->flags=0;
306         return(1);
307 }
308         
309 static int ebcdic_read(BIO *b, char *out, int outl)
310 {
311         int ret=0;
312
313         if (out == NULL || outl == 0) return(0);
314         if (b->next_bio == NULL) return(0);
315
316         ret=BIO_read(b->next_bio,out,outl);
317         if (ret > 0)
318                 ascii2ebcdic(out,out,ret);
319         return(ret);
320 }
321
322 static int ebcdic_write(BIO *b, char *in, int inl)
323 {
324         EBCDIC_OUTBUFF *wbuf;
325         int ret=0;
326         int num;
327         unsigned char n;
328
329         if ((in == NULL) || (inl <= 0)) return(0);
330         if (b->next_bio == NULL) return(0);
331
332         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
333
334         if (inl > (num = wbuf->alloced))
335         {
336                 num = num + num;  /* double the size */
337                 if (num < inl)
338                         num = inl;
339                 Free(wbuf);
340                 wbuf=(EBCDIC_OUTBUFF *)Malloc(sizeof(EBCDIC_OUTBUFF) + num);
341
342                 wbuf->alloced = num;
343                 wbuf->buff[0] = '\0';
344
345                 b->ptr=(char *)wbuf;
346         }
347
348         ebcdic2ascii(wbuf->buff, in, inl);
349
350         ret=BIO_write(b->next_bio, wbuf->buff, inl);
351
352         return(ret);
353 }
354
355 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr)
356 {
357         long ret;
358
359         if (b->next_bio == NULL) return(0);
360         switch (cmd)
361         {
362         case BIO_CTRL_DUP:
363                 ret=0L;
364                 break;
365         default:
366                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
367                 break;
368         }
369         return(ret);
370 }
371
372 static int ebcdic_gets(BIO *bp, char *buf, int size)
373 {
374         int i, ret;
375         if (bp->next_bio == NULL) return(0);
376 /*      return(BIO_gets(bp->next_bio,buf,size));*/
377         for (i=0; i<size-1; ++i)
378         {
379                 ret = ebcdic_read(bp,&buf[i],1);
380                 if (ret <= 0)
381                         break;
382                 else if (buf[i] == '\n')
383                 {
384                         ++i;
385                         break;
386                 }
387         }
388         if (i < size)
389                 buf[i] = '\0';
390         return (ret < 0 && i == 0) ? ret : i;
391 }
392
393 static int ebcdic_puts(BIO *bp, char *str)
394 {
395         if (bp->next_bio == NULL) return(0);
396         return ebcdic_write(bp, str, strlen(str));
397 }
398 #endif
399
400 int MAIN(int argc, char *argv[])
401         {
402         short port=PORT;
403         char *CApath=NULL,*CAfile=NULL;
404         char *context = NULL;
405         char *dhfile = NULL;
406         int badop=0,bugs=0;
407         int ret=1;
408         int off=0;
409         int no_tmp_rsa=0,no_dhe=0,nocert=0;
410         int state=0;
411         SSL_METHOD *meth=NULL;
412 #ifndef NO_DH
413         DH *dh=NULL;
414 #endif
415
416 #if !defined(NO_SSL2) && !defined(NO_SSL3)
417         meth=SSLv23_server_method();
418 #elif !defined(NO_SSL3)
419         meth=SSLv3_server_method();
420 #elif !defined(NO_SSL2)
421         meth=SSLv2_server_method();
422 #endif
423
424         local_argc=argc;
425         local_argv=argv;
426
427         apps_startup();
428 #ifdef MONOLITH
429         s_server_init();
430 #endif
431
432         if (bio_err == NULL)
433                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
434
435         verify_depth=0;
436 #ifdef FIONBIO
437         s_nbio=0;
438 #endif
439         s_nbio_test=0;
440
441         argc--;
442         argv++;
443
444         while (argc >= 1)
445                 {
446                 if      ((strcmp(*argv,"-port") == 0) ||
447                          (strcmp(*argv,"-accept") == 0))
448                         {
449                         if (--argc < 1) goto bad;
450                         if (!extract_port(*(++argv),&port))
451                                 goto bad;
452                         }
453                 else if (strcmp(*argv,"-verify") == 0)
454                         {
455                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
456                         if (--argc < 1) goto bad;
457                         verify_depth=atoi(*(++argv));
458                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
459                         }
460                 else if (strcmp(*argv,"-Verify") == 0)
461                         {
462                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
463                                 SSL_VERIFY_CLIENT_ONCE;
464                         if (--argc < 1) goto bad;
465                         verify_depth=atoi(*(++argv));
466                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
467                         }
468                 else if (strcmp(*argv,"-context") == 0)
469                         {
470                         if (--argc < 1) goto bad;
471                         context= *(++argv);
472                         }
473                 else if (strcmp(*argv,"-cert") == 0)
474                         {
475                         if (--argc < 1) goto bad;
476                         s_cert_file= *(++argv);
477                         }
478                 else if (strcmp(*argv,"-key") == 0)
479                         {
480                         if (--argc < 1) goto bad;
481                         s_key_file= *(++argv);
482                         }
483                 else if (strcmp(*argv,"-dhparam") == 0)
484                         {
485                         if (--argc < 1) goto bad;
486                         dhfile = *(++argv);
487                         }
488                 else if (strcmp(*argv,"-dcert") == 0)
489                         {
490                         if (--argc < 1) goto bad;
491                         s_dcert_file= *(++argv);
492                         }
493                 else if (strcmp(*argv,"-dkey") == 0)
494                         {
495                         if (--argc < 1) goto bad;
496                         s_dkey_file= *(++argv);
497                         }
498                 else if (strcmp(*argv,"-nocert") == 0)
499                         {
500                         nocert=1;
501                         }
502                 else if (strcmp(*argv,"-CApath") == 0)
503                         {
504                         if (--argc < 1) goto bad;
505                         CApath= *(++argv);
506                         }
507                 else if (strcmp(*argv,"-cipher") == 0)
508                         {
509                         if (--argc < 1) goto bad;
510                         cipher= *(++argv);
511                         }
512                 else if (strcmp(*argv,"-CAfile") == 0)
513                         {
514                         if (--argc < 1) goto bad;
515                         CAfile= *(++argv);
516                         }
517 #ifdef FIONBIO  
518                 else if (strcmp(*argv,"-nbio") == 0)
519                         { s_nbio=1; }
520 #endif
521                 else if (strcmp(*argv,"-nbio_test") == 0)
522                         {
523 #ifdef FIONBIO  
524                         s_nbio=1;
525 #endif
526                         s_nbio_test=1;
527                         }
528                 else if (strcmp(*argv,"-debug") == 0)
529                         { s_debug=1; }
530                 else if (strcmp(*argv,"-hack") == 0)
531                         { hack=1; }
532                 else if (strcmp(*argv,"-state") == 0)
533                         { state=1; }
534                 else if (strcmp(*argv,"-crlf") == 0)
535                         { s_crlf=1; }
536                 else if (strcmp(*argv,"-quiet") == 0)
537                         { s_quiet=1; }
538                 else if (strcmp(*argv,"-bugs") == 0)
539                         { bugs=1; }
540                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
541                         { no_tmp_rsa=1; }
542                 else if (strcmp(*argv,"-no_dhe") == 0)
543                         { no_dhe=1; }
544                 else if (strcmp(*argv,"-www") == 0)
545                         { www=1; }
546                 else if (strcmp(*argv,"-WWW") == 0)
547                         { www=2; }
548                 else if (strcmp(*argv,"-no_ssl2") == 0)
549                         { off|=SSL_OP_NO_SSLv2; }
550                 else if (strcmp(*argv,"-no_ssl3") == 0)
551                         { off|=SSL_OP_NO_SSLv3; }
552                 else if (strcmp(*argv,"-no_tls1") == 0)
553                         { off|=SSL_OP_NO_TLSv1; }
554 #ifndef NO_SSL2
555                 else if (strcmp(*argv,"-ssl2") == 0)
556                         { meth=SSLv2_server_method(); }
557 #endif
558 #ifndef NO_SSL3
559                 else if (strcmp(*argv,"-ssl3") == 0)
560                         { meth=SSLv3_server_method(); }
561 #endif
562 #ifndef NO_TLS1
563                 else if (strcmp(*argv,"-tls1") == 0)
564                         { meth=TLSv1_server_method(); }
565 #endif
566                 else
567                         {
568                         BIO_printf(bio_err,"unknown option %s\n",*argv);
569                         badop=1;
570                         break;
571                         }
572                 argc--;
573                 argv++;
574                 }
575         if (badop)
576                 {
577 bad:
578                 sv_usage();
579                 goto end;
580                 }
581
582         app_RAND_load_file(NULL, bio_err, 0);
583
584         if (bio_s_out == NULL)
585                 {
586                 if (s_quiet && !s_debug)
587                         {
588                         bio_s_out=BIO_new(BIO_s_null());
589                         }
590                 else
591                         {
592                         if (bio_s_out == NULL)
593                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
594                         }
595                 }
596
597 #if !defined(NO_RSA) || !defined(NO_DSA)
598         if (nocert)
599 #endif
600                 {
601                 s_cert_file=NULL;
602                 s_key_file=NULL;
603                 s_dcert_file=NULL;
604                 s_dkey_file=NULL;
605                 }
606
607         SSL_load_error_strings();
608         SSLeay_add_ssl_algorithms();
609
610         ctx=SSL_CTX_new(meth);
611         if (ctx == NULL)
612                 {
613                 ERR_print_errors(bio_err);
614                 goto end;
615                 }
616
617         SSL_CTX_set_quiet_shutdown(ctx,1);
618         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
619         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
620         SSL_CTX_set_options(ctx,off);
621         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NON_EXPORT_FIRST);
622
623         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
624
625         SSL_CTX_sess_set_cache_size(ctx,128);
626
627 #if 0
628         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
629 #endif
630
631 #if 0
632         if (s_cert_file == NULL)
633                 {
634                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
635                 goto end;
636                 }
637 #endif
638
639         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
640                 (!SSL_CTX_set_default_verify_paths(ctx)))
641                 {
642                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
643                 ERR_print_errors(bio_err);
644                 /* goto end; */
645                 }
646
647 #ifndef NO_DH
648         if (!no_dhe)
649                 {
650                 dh=load_dh_param(dhfile ? dhfile : s_cert_file);
651                 if (dh != NULL)
652                         {
653                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
654                         }
655                 else
656                         {
657                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
658                         dh=get_dh512();
659                         }
660                 (void)BIO_flush(bio_s_out);
661
662                 SSL_CTX_set_tmp_dh(ctx,dh);
663                 DH_free(dh);
664                 }
665 #endif
666         
667         if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
668                 goto end;
669         if (s_dcert_file != NULL)
670                 {
671                 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
672                         goto end;
673                 }
674
675 #ifndef NO_RSA
676 #if 1
677         SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
678 #else
679         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
680                 {
681                 RSA *rsa;
682
683                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
684                 BIO_flush(bio_s_out);
685
686                 rsa=RSA_generate_key(512,RSA_F4,NULL);
687
688                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
689                         {
690                         ERR_print_errors(bio_err);
691                         goto end;
692                         }
693                 RSA_free(rsa);
694                 BIO_printf(bio_s_out,"\n");
695                 }
696 #endif
697 #endif
698
699         if (cipher != NULL)
700                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
701                 BIO_printf(bio_err,"error seting cipher list\n");
702                 ERR_print_errors(bio_err);
703                 goto end;
704         }
705         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
706         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
707                 sizeof s_server_session_id_context);
708
709         if (CAfile != NULL)
710             SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
711
712         BIO_printf(bio_s_out,"ACCEPT\n");
713         if (www)
714                 do_server(port,&accept_socket,www_body, context);
715         else
716                 do_server(port,&accept_socket,sv_body, context);
717         print_stats(bio_s_out,ctx);
718         ret=0;
719 end:
720         if (ctx != NULL) SSL_CTX_free(ctx);
721         if (bio_s_out != NULL)
722                 {
723                 BIO_free(bio_s_out);
724                 bio_s_out=NULL;
725                 }
726         EXIT(ret);
727         }
728
729 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
730         {
731         BIO_printf(bio,"%4ld items in the session cache\n",
732                 SSL_CTX_sess_number(ssl_ctx));
733         BIO_printf(bio,"%4d client connects (SSL_connect())\n",
734                 SSL_CTX_sess_connect(ssl_ctx));
735         BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
736                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
737         BIO_printf(bio,"%4d client connects that finished\n",
738                 SSL_CTX_sess_connect_good(ssl_ctx));
739         BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
740                 SSL_CTX_sess_accept(ssl_ctx));
741         BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
742                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
743         BIO_printf(bio,"%4d server accepts that finished\n",
744                 SSL_CTX_sess_accept_good(ssl_ctx));
745         BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
746         BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
747         BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
748         BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
749         BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
750                 SSL_CTX_sess_cache_full(ssl_ctx),
751                 SSL_CTX_sess_get_cache_size(ssl_ctx));
752         }
753
754 static int sv_body(char *hostname, int s, unsigned char *context)
755         {
756         char *buf=NULL;
757         fd_set readfds;
758         int ret=1,width;
759         int k,i;
760         unsigned long l;
761         SSL *con=NULL;
762         BIO *sbio;
763 #ifdef WINDOWS
764         struct timeval tv;
765 #endif
766
767         if ((buf=Malloc(bufsize)) == NULL)
768                 {
769                 BIO_printf(bio_err,"out of memory\n");
770                 goto err;
771                 }
772 #ifdef FIONBIO  
773         if (s_nbio)
774                 {
775                 unsigned long sl=1;
776
777                 if (!s_quiet)
778                         BIO_printf(bio_err,"turning on non blocking io\n");
779                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
780                         ERR_print_errors(bio_err);
781                 }
782 #endif
783
784         if (con == NULL) {
785                 con=(SSL *)SSL_new(ctx);
786                 if(context)
787                       SSL_set_session_id_context(con, context,
788                                                  strlen((char *)context));
789         }
790         SSL_clear(con);
791
792         sbio=BIO_new_socket(s,BIO_NOCLOSE);
793         if (s_nbio_test)
794                 {
795                 BIO *test;
796
797                 test=BIO_new(BIO_f_nbio_test());
798                 sbio=BIO_push(test,sbio);
799                 }
800         SSL_set_bio(con,sbio,sbio);
801         SSL_set_accept_state(con);
802         /* SSL_set_fd(con,s); */
803
804         if (s_debug)
805                 {
806                 con->debug=1;
807                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
808                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
809                 }
810
811         width=s+1;
812         for (;;)
813                 {
814                 FD_ZERO(&readfds);
815 #ifndef WINDOWS
816                 FD_SET(fileno(stdin),&readfds);
817 #endif
818                 FD_SET(s,&readfds);
819                 /* Note: under VMS with SOCKETSHR the second parameter is
820                  * currently of type (int *) whereas under other systems
821                  * it is (void *) if you don't have a cast it will choke
822                  * the compiler: if you do have a cast then you can either
823                  * go for (int *) or (void *).
824                  */
825 #ifdef WINDOWS
826                 /* Under Windows we can't select on stdin: only
827                  * on sockets. As a workaround we timeout the select every
828                  * second and check for any keypress. In a proper Windows
829                  * application we wouldn't do this because it is inefficient.
830                  */
831                 tv.tv_sec = 1;
832                 tv.tv_usec = 0;
833                 i=select(width,(void *)&readfds,NULL,NULL,&tv);
834                 if((i < 0) || (!i && !_kbhit() ) )continue;
835                 if(_kbhit())
836 #else
837                 i=select(width,(void *)&readfds,NULL,NULL,NULL);
838                 if (i <= 0) continue;
839                 if (FD_ISSET(fileno(stdin),&readfds))
840 #endif
841                         {
842                         if (s_crlf)
843                                 {
844                                 int j, lf_num;
845
846                                 i=read(fileno(stdin), buf, bufsize/2);
847                                 lf_num = 0;
848                                 /* both loops are skipped when i <= 0 */
849                                 for (j = 0; j < i; j++)
850                                         if (buf[j] == '\n')
851                                                 lf_num++;
852                                 for (j = i-1; j >= 0; j--)
853                                         {
854                                         buf[j+lf_num] = buf[j];
855                                         if (buf[j] == '\n')
856                                                 {
857                                                 lf_num--;
858                                                 i++;
859                                                 buf[j+lf_num] = '\r';
860                                                 }
861                                         }
862                                 assert(lf_num == 0);
863                                 }
864                         else
865                                 i=read(fileno(stdin),buf,bufsize);
866                         if (!s_quiet)
867                                 {
868                                 if ((i <= 0) || (buf[0] == 'Q'))
869                                         {
870                                         BIO_printf(bio_s_out,"DONE\n");
871                                         SHUTDOWN(s);
872                                         close_accept_socket();
873                                         ret= -11;
874                                         goto err;
875                                         }
876                                 if ((i <= 0) || (buf[0] == 'q'))
877                                         {
878                                         BIO_printf(bio_s_out,"DONE\n");
879                                         SHUTDOWN(s);
880         /*                              close_accept_socket();
881                                         ret= -11;*/
882                                         goto err;
883                                         }
884                                 if ((buf[0] == 'r') && 
885                                         ((buf[1] == '\n') || (buf[1] == '\r')))
886                                         {
887                                         SSL_renegotiate(con);
888                                         i=SSL_do_handshake(con);
889                                         printf("SSL_do_handshake -> %d\n",i);
890                                         i=0; /*13; */
891                                         continue;
892                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
893                                         }
894                                 if ((buf[0] == 'R') &&
895                                         ((buf[1] == '\n') || (buf[1] == '\r')))
896                                         {
897                                         SSL_set_verify(con,
898                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
899                                         SSL_renegotiate(con);
900                                         i=SSL_do_handshake(con);
901                                         printf("SSL_do_handshake -> %d\n",i);
902                                         i=0; /* 13; */
903                                         continue;
904                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
905                                         }
906                                 if (buf[0] == 'P')
907                                         {
908                                         static char *str="Lets print some clear text\n";
909                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
910                                         }
911                                 if (buf[0] == 'S')
912                                         {
913                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
914                                         }
915                                 }
916 #ifdef CHARSET_EBCDIC
917                         ebcdic2ascii(buf,buf,i);
918 #endif
919                         l=k=0;
920                         for (;;)
921                                 {
922                                 /* should do a select for the write */
923 #ifdef RENEG
924 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
925 #endif
926                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
927                                 switch (SSL_get_error(con,k))
928                                         {
929                                 case SSL_ERROR_NONE:
930                                         break;
931                                 case SSL_ERROR_WANT_WRITE:
932                                 case SSL_ERROR_WANT_READ:
933                                 case SSL_ERROR_WANT_X509_LOOKUP:
934                                         BIO_printf(bio_s_out,"Write BLOCK\n");
935                                         break;
936                                 case SSL_ERROR_SYSCALL:
937                                 case SSL_ERROR_SSL:
938                                         BIO_printf(bio_s_out,"ERROR\n");
939                                         ERR_print_errors(bio_err);
940                                         ret=1;
941                                         goto err;
942                                         /* break; */
943                                 case SSL_ERROR_ZERO_RETURN:
944                                         BIO_printf(bio_s_out,"DONE\n");
945                                         ret=1;
946                                         goto err;
947                                         }
948                                 l+=k;
949                                 i-=k;
950                                 if (i <= 0) break;
951                                 }
952                         }
953                 if (FD_ISSET(s,&readfds))
954                         {
955                         if (!SSL_is_init_finished(con))
956                                 {
957                                 i=init_ssl_connection(con);
958                                 
959                                 if (i < 0)
960                                         {
961                                         ret=0;
962                                         goto err;
963                                         }
964                                 else if (i == 0)
965                                         {
966                                         ret=1;
967                                         goto err;
968                                         }
969                                 }
970                         else
971                                 {
972 again:  
973                                 i=SSL_read(con,(char *)buf,bufsize);
974                                 switch (SSL_get_error(con,i))
975                                         {
976                                 case SSL_ERROR_NONE:
977 #ifdef CHARSET_EBCDIC
978                                         ascii2ebcdic(buf,buf,i);
979 #endif
980                                         write(fileno(stdout),buf,
981                                                 (unsigned int)i);
982                                         if (SSL_pending(con)) goto again;
983                                         break;
984                                 case SSL_ERROR_WANT_WRITE:
985                                 case SSL_ERROR_WANT_READ:
986                                 case SSL_ERROR_WANT_X509_LOOKUP:
987                                         BIO_printf(bio_s_out,"Read BLOCK\n");
988                                         break;
989                                 case SSL_ERROR_SYSCALL:
990                                 case SSL_ERROR_SSL:
991                                         BIO_printf(bio_s_out,"ERROR\n");
992                                         ERR_print_errors(bio_err);
993                                         ret=1;
994                                         goto err;
995                                 case SSL_ERROR_ZERO_RETURN:
996                                         BIO_printf(bio_s_out,"DONE\n");
997                                         ret=1;
998                                         goto err;
999                                         }
1000                                 }
1001                         }
1002                 }
1003 err:
1004         BIO_printf(bio_s_out,"shutting down SSL\n");
1005 #if 1
1006         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1007 #else
1008         SSL_shutdown(con);
1009 #endif
1010         if (con != NULL) SSL_free(con);
1011         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1012         if (buf != NULL)
1013                 {
1014                 memset(buf,0,bufsize);
1015                 Free(buf);
1016                 }
1017         if (ret >= 0)
1018                 BIO_printf(bio_s_out,"ACCEPT\n");
1019         return(ret);
1020         }
1021
1022 static void close_accept_socket(void)
1023         {
1024         BIO_printf(bio_err,"shutdown accept socket\n");
1025         if (accept_socket >= 0)
1026                 {
1027                 SHUTDOWN2(accept_socket);
1028                 }
1029         }
1030
1031 static int init_ssl_connection(SSL *con)
1032         {
1033         int i;
1034         const char *str;
1035         X509 *peer;
1036         long verify_error;
1037         MS_STATIC char buf[BUFSIZ];
1038
1039         if ((i=SSL_accept(con)) <= 0)
1040                 {
1041                 if (BIO_sock_should_retry(i))
1042                         {
1043                         BIO_printf(bio_s_out,"DELAY\n");
1044                         return(1);
1045                         }
1046
1047                 BIO_printf(bio_err,"ERROR\n");
1048                 verify_error=SSL_get_verify_result(con);
1049                 if (verify_error != X509_V_OK)
1050                         {
1051                         BIO_printf(bio_err,"verify error:%s\n",
1052                                 X509_verify_cert_error_string(verify_error));
1053                         }
1054                 else
1055                         ERR_print_errors(bio_err);
1056                 return(0);
1057                 }
1058
1059         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1060
1061         peer=SSL_get_peer_certificate(con);
1062         if (peer != NULL)
1063                 {
1064                 BIO_printf(bio_s_out,"Client certificate\n");
1065                 PEM_write_bio_X509(bio_s_out,peer);
1066                 X509_NAME_oneline(X509_get_subject_name(peer),buf,BUFSIZ);
1067                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1068                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,BUFSIZ);
1069                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1070                 X509_free(peer);
1071                 }
1072
1073         if (SSL_get_shared_ciphers(con,buf,BUFSIZ) != NULL)
1074                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1075         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1076         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1077         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1078         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1079                 TLS1_FLAGS_TLS_PADDING_BUG)
1080                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1081
1082         return(1);
1083         }
1084
1085 #ifndef NO_DH
1086 static DH *load_dh_param(char *dhfile)
1087         {
1088         DH *ret=NULL;
1089         BIO *bio;
1090
1091         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
1092                 goto err;
1093         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1094 err:
1095         if (bio != NULL) BIO_free(bio);
1096         return(ret);
1097         }
1098 #endif
1099
1100 #if 0
1101 static int load_CA(SSL_CTX *ctx, char *file)
1102         {
1103         FILE *in;
1104         X509 *x=NULL;
1105
1106         if ((in=fopen(file,"r")) == NULL)
1107                 return(0);
1108
1109         for (;;)
1110                 {
1111                 if (PEM_read_X509(in,&x,NULL) == NULL)
1112                         break;
1113                 SSL_CTX_add_client_CA(ctx,x);
1114                 }
1115         if (x != NULL) X509_free(x);
1116         fclose(in);
1117         return(1);
1118         }
1119 #endif
1120
1121 static int www_body(char *hostname, int s, unsigned char *context)
1122         {
1123         char *buf=NULL;
1124         int ret=1;
1125         int i,j,k,blank,dot;
1126         struct stat st_buf;
1127         SSL *con;
1128         SSL_CIPHER *c;
1129         BIO *io,*ssl_bio,*sbio;
1130         long total_bytes;
1131
1132         buf=Malloc(bufsize);
1133         if (buf == NULL) return(0);
1134         io=BIO_new(BIO_f_buffer());
1135         ssl_bio=BIO_new(BIO_f_ssl());
1136         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1137
1138 #ifdef FIONBIO  
1139         if (s_nbio)
1140                 {
1141                 unsigned long sl=1;
1142
1143                 if (!s_quiet)
1144                         BIO_printf(bio_err,"turning on non blocking io\n");
1145                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1146                         ERR_print_errors(bio_err);
1147                 }
1148 #endif
1149
1150         /* lets make the output buffer a reasonable size */
1151         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1152
1153         if ((con=(SSL *)SSL_new(ctx)) == NULL) goto err;
1154         if(context) SSL_set_session_id_context(con, context,
1155                                                strlen((char *)context));
1156
1157         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1158         if (s_nbio_test)
1159                 {
1160                 BIO *test;
1161
1162                 test=BIO_new(BIO_f_nbio_test());
1163                 sbio=BIO_push(test,sbio);
1164                 }
1165         SSL_set_bio(con,sbio,sbio);
1166         SSL_set_accept_state(con);
1167
1168         /* SSL_set_fd(con,s); */
1169         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1170         BIO_push(io,ssl_bio);
1171 #ifdef CHARSET_EBCDIC
1172         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1173 #endif
1174
1175         if (s_debug)
1176                 {
1177                 con->debug=1;
1178                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1179                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1180                 }
1181
1182         blank=0;
1183         for (;;)
1184                 {
1185                 if (hack)
1186                         {
1187                         i=SSL_accept(con);
1188
1189                         switch (SSL_get_error(con,i))
1190                                 {
1191                         case SSL_ERROR_NONE:
1192                                 break;
1193                         case SSL_ERROR_WANT_WRITE:
1194                         case SSL_ERROR_WANT_READ:
1195                         case SSL_ERROR_WANT_X509_LOOKUP:
1196                                 continue;
1197                         case SSL_ERROR_SYSCALL:
1198                         case SSL_ERROR_SSL:
1199                         case SSL_ERROR_ZERO_RETURN:
1200                                 ret=1;
1201                                 goto err;
1202                                 /* break; */
1203                                 }
1204
1205                         SSL_renegotiate(con);
1206                         SSL_write(con,NULL,0);
1207                         }
1208
1209                 i=BIO_gets(io,buf,bufsize-1);
1210                 if (i < 0) /* error */
1211                         {
1212                         if (!BIO_should_retry(io))
1213                                 {
1214                                 if (!s_quiet)
1215                                         ERR_print_errors(bio_err);
1216                                 goto err;
1217                                 }
1218                         else
1219                                 {
1220                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1221 #ifndef MSDOS
1222                                 sleep(1);
1223 #endif
1224                                 continue;
1225                                 }
1226                         }
1227                 else if (i == 0) /* end of input */
1228                         {
1229                         ret=1;
1230                         goto end;
1231                         }
1232
1233                 /* else we have data */
1234                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1235                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1236                         {
1237                         char *p;
1238                         X509 *peer;
1239                         STACK_OF(SSL_CIPHER) *sk;
1240                         static char *space="                          ";
1241
1242                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1243                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1244                         BIO_puts(io,"<pre>\n");
1245 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1246                         BIO_puts(io,"\n");
1247                         for (i=0; i<local_argc; i++)
1248                                 {
1249                                 BIO_puts(io,local_argv[i]);
1250                                 BIO_write(io," ",1);
1251                                 }
1252                         BIO_puts(io,"\n");
1253
1254                         /* The following is evil and should not really
1255                          * be done */
1256                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1257                         sk=SSL_get_ciphers(con);
1258                         j=sk_SSL_CIPHER_num(sk);
1259                         for (i=0; i<j; i++)
1260                                 {
1261                                 c=sk_SSL_CIPHER_value(sk,i);
1262                                 BIO_printf(io,"%-11s:%-25s",
1263                                         SSL_CIPHER_get_version(c),
1264                                         SSL_CIPHER_get_name(c));
1265                                 if ((((i+1)%2) == 0) && (i+1 != j))
1266                                         BIO_puts(io,"\n");
1267                                 }
1268                         BIO_puts(io,"\n");
1269                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1270                         if (p != NULL)
1271                                 {
1272                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1273                                 j=i=0;
1274                                 while (*p)
1275                                         {
1276                                         if (*p == ':')
1277                                                 {
1278                                                 BIO_write(io,space,26-j);
1279                                                 i++;
1280                                                 j=0;
1281                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1282                                                 }
1283                                         else
1284                                                 {
1285                                                 BIO_write(io,p,1);
1286                                                 j++;
1287                                                 }
1288                                         p++;
1289                                         }
1290                                 BIO_puts(io,"\n");
1291                                 }
1292                         BIO_printf(io,((con->hit)
1293                                 ?"---\nReused, "
1294                                 :"---\nNew, "));
1295                         c=SSL_get_current_cipher(con);
1296                         BIO_printf(io,"%s, Cipher is %s\n",
1297                                 SSL_CIPHER_get_version(c),
1298                                 SSL_CIPHER_get_name(c));
1299                         SSL_SESSION_print(io,SSL_get_session(con));
1300                         BIO_printf(io,"---\n");
1301                         print_stats(io,SSL_get_SSL_CTX(con));
1302                         BIO_printf(io,"---\n");
1303                         peer=SSL_get_peer_certificate(con);
1304                         if (peer != NULL)
1305                                 {
1306                                 BIO_printf(io,"Client certificate\n");
1307                                 X509_print(io,peer);
1308                                 PEM_write_bio_X509(io,peer);
1309                                 }
1310                         else
1311                                 BIO_puts(io,"no client certificate available\n");
1312                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1313                         break;
1314                         }
1315                 else if ((www == 2) && (strncmp("GET /",buf,5) == 0))
1316                         {
1317                         BIO *file;
1318                         char *p,*e;
1319                         static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1320
1321                         /* skip the '/' */
1322                         p= &(buf[5]);
1323                         dot=0;
1324                         for (e=p; *e != '\0'; e++)
1325                                 {
1326                                 if (e[0] == ' ') break;
1327                                 if (    (e[0] == '.') &&
1328                                         (strncmp(&(e[-1]),"/../",4) == 0))
1329                                         dot=1;
1330                                 }
1331                         
1332
1333                         if (*e == '\0')
1334                                 {
1335                                 BIO_puts(io,text);
1336                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1337                                 break;
1338                                 }
1339                         *e='\0';
1340
1341                         if (dot)
1342                                 {
1343                                 BIO_puts(io,text);
1344                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1345                                 break;
1346                                 }
1347
1348                         if (*p == '/')
1349                                 {
1350                                 BIO_puts(io,text);
1351                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1352                                 break;
1353                                 }
1354
1355                         /* append if a directory lookup */
1356                         if (e[-1] == '/')
1357                                 strcat(p,"index.html");
1358
1359                         /* if a directory, do the index thang */
1360                         if (stat(p,&st_buf) < 0)
1361                                 {
1362                                 BIO_puts(io,text);
1363                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1364                                 ERR_print_errors(io);
1365                                 break;
1366                                 }
1367                         if (S_ISDIR(st_buf.st_mode))
1368                                 {
1369                                 strcat(p,"/index.html");
1370                                 }
1371
1372                         if ((file=BIO_new_file(p,"r")) == NULL)
1373                                 {
1374                                 BIO_puts(io,text);
1375                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1376                                 ERR_print_errors(io);
1377                                 break;
1378                                 }
1379
1380                         if (!s_quiet)
1381                                 BIO_printf(bio_err,"FILE:%s\n",p);
1382
1383                         i=strlen(p);
1384                         if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1385                                 ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1386                                 ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1387                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1388                         else
1389                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1390                         /* send the file */
1391                         total_bytes=0;
1392                         for (;;)
1393                                 {
1394                                 i=BIO_read(file,buf,bufsize);
1395                                 if (i <= 0) break;
1396
1397 #ifdef RENEG
1398                                 total_bytes+=i;
1399                                 fprintf(stderr,"%d\n",i);
1400                                 if (total_bytes > 3*1024)
1401                                         {
1402                                         total_bytes=0;
1403                                         fprintf(stderr,"RENEGOTIATE\n");
1404                                         SSL_renegotiate(con);
1405                                         }
1406 #endif
1407
1408                                 for (j=0; j<i; )
1409                                         {
1410 #ifdef RENEG
1411 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1412 #endif
1413                                         k=BIO_write(io,&(buf[j]),i-j);
1414                                         if (k <= 0)
1415                                                 {
1416                                                 if (!BIO_should_retry(io))
1417                                                         goto write_error;
1418                                                 else
1419                                                         {
1420                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1421                                                         }
1422                                                 }
1423                                         else
1424                                                 {
1425                                                 j+=k;
1426                                                 }
1427                                         }
1428                                 }
1429 write_error:
1430                         BIO_free(file);
1431                         break;
1432                         }
1433                 }
1434
1435         for (;;)
1436                 {
1437                 i=(int)BIO_flush(io);
1438                 if (i <= 0)
1439                         {
1440                         if (!BIO_should_retry(io))
1441                                 break;
1442                         }
1443                 else
1444                         break;
1445                 }
1446 end:
1447 #if 1
1448         /* make sure we re-use sessions */
1449         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1450 #else
1451         /* This kills performace */
1452 /*      SSL_shutdown(con); A shutdown gets sent in the
1453  *      BIO_free_all(io) procession */
1454 #endif
1455
1456 err:
1457
1458         if (ret >= 0)
1459                 BIO_printf(bio_s_out,"ACCEPT\n");
1460
1461         if (buf != NULL) Free(buf);
1462         if (io != NULL) BIO_free_all(io);
1463 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1464         return(ret);
1465         }
1466
1467 #ifndef NO_RSA
1468 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1469         {
1470         static RSA *rsa_tmp=NULL;
1471
1472         if (rsa_tmp == NULL)
1473                 {
1474                 if (!s_quiet)
1475                         {
1476                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1477                         (void)BIO_flush(bio_err);
1478                         }
1479                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1480                 if (!s_quiet)
1481                         {
1482                         BIO_printf(bio_err,"\n");
1483                         (void)BIO_flush(bio_err);
1484                         }
1485                 }
1486         return(rsa_tmp);
1487         }
1488 #endif