This adds command-line support to s_server for controlling the generation
[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 #include <openssl/e_os2.h>
66 #ifdef OPENSSL_NO_STDIO
67 #define APPS_WIN16
68 #endif
69
70 /* With IPv6, it looks like Digital has mixed up the proper order of
71    recursive header file inclusion, resulting in the compiler complaining
72    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
73    is needed to have fileno() declared correctly...  So let's define u_int */
74 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
75 #define __U_INT
76 typedef unsigned int u_int;
77 #endif
78
79 #include <openssl/lhash.h>
80 #include <openssl/bn.h>
81 #define USE_SOCKETS
82 #include "apps.h"
83 #include <openssl/err.h>
84 #include <openssl/pem.h>
85 #include <openssl/x509.h>
86 #include <openssl/ssl.h>
87 #include <openssl/engine.h>
88 #include "s_apps.h"
89
90 #ifdef OPENSSL_SYS_WINDOWS
91 #include <conio.h>
92 #endif
93
94 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
95 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
96 #undef FIONBIO
97 #endif
98
99 #ifndef OPENSSL_NO_RSA
100 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
101 #endif
102 static int sv_body(char *hostname, int s, unsigned char *context);
103 static int www_body(char *hostname, int s, unsigned char *context);
104 static void close_accept_socket(void );
105 static void sv_usage(void);
106 static int init_ssl_connection(SSL *s);
107 static void print_stats(BIO *bp,SSL_CTX *ctx);
108 static int generate_session_id(const SSL *ssl, unsigned char *id,
109                                 unsigned int *id_len);
110 #ifndef OPENSSL_NO_DH
111 static DH *load_dh_param(char *dhfile);
112 static DH *get_dh512(void);
113 #endif
114 #ifdef MONOLITH
115 static void s_server_init(void);
116 #endif
117
118 #ifndef S_ISDIR
119 # if defined(_S_IFMT) && defined(_S_IFDIR)
120 #  define S_ISDIR(a)    (((a) & _S_IFMT) == _S_IFDIR)
121 # else
122 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
123 # endif
124 #endif
125
126 #ifndef OPENSSL_NO_DH
127 static unsigned char dh512_p[]={
128         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
129         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
130         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
131         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
132         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
133         0x47,0x74,0xE8,0x33,
134         };
135 static unsigned char dh512_g[]={
136         0x02,
137         };
138
139 static DH *get_dh512(void)
140         {
141         DH *dh=NULL;
142
143         if ((dh=DH_new()) == NULL) return(NULL);
144         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
145         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
146         if ((dh->p == NULL) || (dh->g == NULL))
147                 return(NULL);
148         return(dh);
149         }
150 #endif
151
152 /* static int load_CA(SSL_CTX *ctx, char *file);*/
153
154 #undef BUFSIZZ
155 #define BUFSIZZ 16*1024
156 static int bufsize=BUFSIZZ;
157 static int accept_socket= -1;
158
159 #define TEST_CERT       "server.pem"
160 #undef PROG
161 #define PROG            s_server_main
162
163 extern int verify_depth;
164
165 static char *cipher=NULL;
166 static int s_server_verify=SSL_VERIFY_NONE;
167 static int s_server_session_id_context = 1; /* anything will do */
168 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
169 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
170 #ifdef FIONBIO
171 static int s_nbio=0;
172 #endif
173 static int s_nbio_test=0;
174 int s_crlf=0;
175 static SSL_CTX *ctx=NULL;
176 static int www=0;
177
178 static BIO *bio_s_out=NULL;
179 static int s_debug=0;
180 static int s_quiet=0;
181
182 static int hack=0;
183 static char *engine_id=NULL;
184 static const char *session_id_prefix=NULL;
185
186 #ifdef MONOLITH
187 static void s_server_init(void)
188         {
189         accept_socket=-1;
190         cipher=NULL;
191         s_server_verify=SSL_VERIFY_NONE;
192         s_dcert_file=NULL;
193         s_dkey_file=NULL;
194         s_cert_file=TEST_CERT;
195         s_key_file=NULL;
196 #ifdef FIONBIO
197         s_nbio=0;
198 #endif
199         s_nbio_test=0;
200         ctx=NULL;
201         www=0;
202
203         bio_s_out=NULL;
204         s_debug=0;
205         s_quiet=0;
206         hack=0;
207         engine_id=NULL;
208         }
209 #endif
210
211 static void sv_usage(void)
212         {
213         BIO_printf(bio_err,"usage: s_server [args ...]\n");
214         BIO_printf(bio_err,"\n");
215         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
216         BIO_printf(bio_err," -context arg  - set session ID context\n");
217         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
218         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
219         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
220         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
221         BIO_printf(bio_err," -key arg      - Private Key file to use, PEM format assumed, in cert file if\n");
222         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
223         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
224         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
225         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
226         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
227 #ifdef FIONBIO
228         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
229 #endif
230         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
231         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
232         BIO_printf(bio_err," -debug        - Print more output\n");
233         BIO_printf(bio_err," -state        - Print the SSL states\n");
234         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
235         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
236         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
237         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
238         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
239         BIO_printf(bio_err," -quiet        - No server output\n");
240         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
241         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
242         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
243         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
244         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
245         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
246         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
247 #ifndef OPENSSL_NO_DH
248         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
249 #endif
250         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
251         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
252         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
253         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
254         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
255         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
256         }
257
258 static int local_argc=0;
259 static char **local_argv;
260
261 #ifdef CHARSET_EBCDIC
262 static int ebcdic_new(BIO *bi);
263 static int ebcdic_free(BIO *a);
264 static int ebcdic_read(BIO *b, char *out, int outl);
265 static int ebcdic_write(BIO *b, char *in, int inl);
266 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr);
267 static int ebcdic_gets(BIO *bp, char *buf, int size);
268 static int ebcdic_puts(BIO *bp, char *str);
269
270 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
271 static BIO_METHOD methods_ebcdic=
272         {
273         BIO_TYPE_EBCDIC_FILTER,
274         "EBCDIC/ASCII filter",
275         ebcdic_write,
276         ebcdic_read,
277         ebcdic_puts,
278         ebcdic_gets,
279         ebcdic_ctrl,
280         ebcdic_new,
281         ebcdic_free,
282         };
283
284 typedef struct
285 {
286         size_t  alloced;
287         char    buff[1];
288 } EBCDIC_OUTBUFF;
289
290 BIO_METHOD *BIO_f_ebcdic_filter()
291 {
292         return(&methods_ebcdic);
293 }
294
295 static int ebcdic_new(BIO *bi)
296 {
297         EBCDIC_OUTBUFF *wbuf;
298
299         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
300         wbuf->alloced = 1024;
301         wbuf->buff[0] = '\0';
302
303         bi->ptr=(char *)wbuf;
304         bi->init=1;
305         bi->flags=0;
306         return(1);
307 }
308
309 static int ebcdic_free(BIO *a)
310 {
311         if (a == NULL) return(0);
312         if (a->ptr != NULL)
313                 OPENSSL_free(a->ptr);
314         a->ptr=NULL;
315         a->init=0;
316         a->flags=0;
317         return(1);
318 }
319         
320 static int ebcdic_read(BIO *b, char *out, int outl)
321 {
322         int ret=0;
323
324         if (out == NULL || outl == 0) return(0);
325         if (b->next_bio == NULL) return(0);
326
327         ret=BIO_read(b->next_bio,out,outl);
328         if (ret > 0)
329                 ascii2ebcdic(out,out,ret);
330         return(ret);
331 }
332
333 static int ebcdic_write(BIO *b, char *in, int inl)
334 {
335         EBCDIC_OUTBUFF *wbuf;
336         int ret=0;
337         int num;
338         unsigned char n;
339
340         if ((in == NULL) || (inl <= 0)) return(0);
341         if (b->next_bio == NULL) return(0);
342
343         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
344
345         if (inl > (num = wbuf->alloced))
346         {
347                 num = num + num;  /* double the size */
348                 if (num < inl)
349                         num = inl;
350                 OPENSSL_free(wbuf);
351                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
352
353                 wbuf->alloced = num;
354                 wbuf->buff[0] = '\0';
355
356                 b->ptr=(char *)wbuf;
357         }
358
359         ebcdic2ascii(wbuf->buff, in, inl);
360
361         ret=BIO_write(b->next_bio, wbuf->buff, inl);
362
363         return(ret);
364 }
365
366 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr)
367 {
368         long ret;
369
370         if (b->next_bio == NULL) return(0);
371         switch (cmd)
372         {
373         case BIO_CTRL_DUP:
374                 ret=0L;
375                 break;
376         default:
377                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
378                 break;
379         }
380         return(ret);
381 }
382
383 static int ebcdic_gets(BIO *bp, char *buf, int size)
384 {
385         int i, ret;
386         if (bp->next_bio == NULL) return(0);
387 /*      return(BIO_gets(bp->next_bio,buf,size));*/
388         for (i=0; i<size-1; ++i)
389         {
390                 ret = ebcdic_read(bp,&buf[i],1);
391                 if (ret <= 0)
392                         break;
393                 else if (buf[i] == '\n')
394                 {
395                         ++i;
396                         break;
397                 }
398         }
399         if (i < size)
400                 buf[i] = '\0';
401         return (ret < 0 && i == 0) ? ret : i;
402 }
403
404 static int ebcdic_puts(BIO *bp, char *str)
405 {
406         if (bp->next_bio == NULL) return(0);
407         return ebcdic_write(bp, str, strlen(str));
408 }
409 #endif
410
411 int MAIN(int, char **);
412
413 int MAIN(int argc, char *argv[])
414         {
415         short port=PORT;
416         char *CApath=NULL,*CAfile=NULL;
417         char *context = NULL;
418         char *dhfile = NULL;
419         int badop=0,bugs=0;
420         int ret=1;
421         int off=0;
422         int no_tmp_rsa=0,no_dhe=0,nocert=0;
423         int state=0;
424         SSL_METHOD *meth=NULL;
425         ENGINE *e=NULL;
426         char *inrand=NULL;
427
428 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
429         meth=SSLv23_server_method();
430 #elif !defined(OPENSSL_NO_SSL3)
431         meth=SSLv3_server_method();
432 #elif !defined(OPENSSL_NO_SSL2)
433         meth=SSLv2_server_method();
434 #endif
435
436         local_argc=argc;
437         local_argv=argv;
438
439         apps_startup();
440 #ifdef MONOLITH
441         s_server_init();
442 #endif
443
444         if (bio_err == NULL)
445                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
446
447         verify_depth=0;
448 #ifdef FIONBIO
449         s_nbio=0;
450 #endif
451         s_nbio_test=0;
452
453         argc--;
454         argv++;
455
456         while (argc >= 1)
457                 {
458                 if      ((strcmp(*argv,"-port") == 0) ||
459                          (strcmp(*argv,"-accept") == 0))
460                         {
461                         if (--argc < 1) goto bad;
462                         if (!extract_port(*(++argv),&port))
463                                 goto bad;
464                         }
465                 else if (strcmp(*argv,"-verify") == 0)
466                         {
467                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
468                         if (--argc < 1) goto bad;
469                         verify_depth=atoi(*(++argv));
470                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
471                         }
472                 else if (strcmp(*argv,"-Verify") == 0)
473                         {
474                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
475                                 SSL_VERIFY_CLIENT_ONCE;
476                         if (--argc < 1) goto bad;
477                         verify_depth=atoi(*(++argv));
478                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
479                         }
480                 else if (strcmp(*argv,"-context") == 0)
481                         {
482                         if (--argc < 1) goto bad;
483                         context= *(++argv);
484                         }
485                 else if (strcmp(*argv,"-cert") == 0)
486                         {
487                         if (--argc < 1) goto bad;
488                         s_cert_file= *(++argv);
489                         }
490                 else if (strcmp(*argv,"-key") == 0)
491                         {
492                         if (--argc < 1) goto bad;
493                         s_key_file= *(++argv);
494                         }
495                 else if (strcmp(*argv,"-dhparam") == 0)
496                         {
497                         if (--argc < 1) goto bad;
498                         dhfile = *(++argv);
499                         }
500                 else if (strcmp(*argv,"-dcert") == 0)
501                         {
502                         if (--argc < 1) goto bad;
503                         s_dcert_file= *(++argv);
504                         }
505                 else if (strcmp(*argv,"-dkey") == 0)
506                         {
507                         if (--argc < 1) goto bad;
508                         s_dkey_file= *(++argv);
509                         }
510                 else if (strcmp(*argv,"-nocert") == 0)
511                         {
512                         nocert=1;
513                         }
514                 else if (strcmp(*argv,"-CApath") == 0)
515                         {
516                         if (--argc < 1) goto bad;
517                         CApath= *(++argv);
518                         }
519                 else if (strcmp(*argv,"-serverpref") == 0)
520                         { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
521                 else if (strcmp(*argv,"-cipher") == 0)
522                         {
523                         if (--argc < 1) goto bad;
524                         cipher= *(++argv);
525                         }
526                 else if (strcmp(*argv,"-CAfile") == 0)
527                         {
528                         if (--argc < 1) goto bad;
529                         CAfile= *(++argv);
530                         }
531 #ifdef FIONBIO  
532                 else if (strcmp(*argv,"-nbio") == 0)
533                         { s_nbio=1; }
534 #endif
535                 else if (strcmp(*argv,"-nbio_test") == 0)
536                         {
537 #ifdef FIONBIO  
538                         s_nbio=1;
539 #endif
540                         s_nbio_test=1;
541                         }
542                 else if (strcmp(*argv,"-debug") == 0)
543                         { s_debug=1; }
544                 else if (strcmp(*argv,"-hack") == 0)
545                         { hack=1; }
546                 else if (strcmp(*argv,"-state") == 0)
547                         { state=1; }
548                 else if (strcmp(*argv,"-crlf") == 0)
549                         { s_crlf=1; }
550                 else if (strcmp(*argv,"-quiet") == 0)
551                         { s_quiet=1; }
552                 else if (strcmp(*argv,"-bugs") == 0)
553                         { bugs=1; }
554                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
555                         { no_tmp_rsa=1; }
556                 else if (strcmp(*argv,"-no_dhe") == 0)
557                         { no_dhe=1; }
558                 else if (strcmp(*argv,"-www") == 0)
559                         { www=1; }
560                 else if (strcmp(*argv,"-WWW") == 0)
561                         { www=2; }
562                 else if (strcmp(*argv,"-no_ssl2") == 0)
563                         { off|=SSL_OP_NO_SSLv2; }
564                 else if (strcmp(*argv,"-no_ssl3") == 0)
565                         { off|=SSL_OP_NO_SSLv3; }
566                 else if (strcmp(*argv,"-no_tls1") == 0)
567                         { off|=SSL_OP_NO_TLSv1; }
568 #ifndef OPENSSL_NO_SSL2
569                 else if (strcmp(*argv,"-ssl2") == 0)
570                         { meth=SSLv2_server_method(); }
571 #endif
572 #ifndef OPENSSL_NO_SSL3
573                 else if (strcmp(*argv,"-ssl3") == 0)
574                         { meth=SSLv3_server_method(); }
575 #endif
576 #ifndef OPENSSL_NO_TLS1
577                 else if (strcmp(*argv,"-tls1") == 0)
578                         { meth=TLSv1_server_method(); }
579 #endif
580                 else if (strcmp(*argv, "-id_prefix") == 0)
581                         {
582                         if (--argc < 1) goto bad;
583                         session_id_prefix = *(++argv);
584                         }
585                 else if (strcmp(*argv,"-engine") == 0)
586                         {
587                         if (--argc < 1) goto bad;
588                         engine_id= *(++argv);
589                         }
590                 else if (strcmp(*argv,"-rand") == 0)
591                         {
592                         if (--argc < 1) goto bad;
593                         inrand= *(++argv);
594                         }
595                 else
596                         {
597                         BIO_printf(bio_err,"unknown option %s\n",*argv);
598                         badop=1;
599                         break;
600                         }
601                 argc--;
602                 argv++;
603                 }
604         if (badop)
605                 {
606 bad:
607                 sv_usage();
608                 goto end;
609                 }
610
611         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
612                 && !RAND_status())
613                 {
614                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
615                 }
616         if (inrand != NULL)
617                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
618                         app_RAND_load_files(inrand));
619
620         if (bio_s_out == NULL)
621                 {
622                 if (s_quiet && !s_debug)
623                         {
624                         bio_s_out=BIO_new(BIO_s_null());
625                         }
626                 else
627                         {
628                         if (bio_s_out == NULL)
629                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
630                         }
631                 }
632
633 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA)
634         if (nocert)
635 #endif
636                 {
637                 s_cert_file=NULL;
638                 s_key_file=NULL;
639                 s_dcert_file=NULL;
640                 s_dkey_file=NULL;
641                 }
642
643         SSL_load_error_strings();
644         OpenSSL_add_ssl_algorithms();
645
646         if (engine_id != NULL)
647                 {
648                 if((e = ENGINE_by_id(engine_id)) == NULL)
649                         {
650                         BIO_printf(bio_err,"invalid engine\n");
651                         ERR_print_errors(bio_err);
652                         goto end;
653                         }
654                 if (s_debug)
655                         {
656                         ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM,
657                                 0, bio_err, 0);
658                         }
659                 if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
660                         {
661                         BIO_printf(bio_err,"can't use that engine\n");
662                         ERR_print_errors(bio_err);
663                         goto end;
664                         }
665                 BIO_printf(bio_err,"engine \"%s\" set.\n", engine_id);
666                 ENGINE_free(e);
667                 }
668
669         ctx=SSL_CTX_new(meth);
670         if (ctx == NULL)
671                 {
672                 ERR_print_errors(bio_err);
673                 goto end;
674                 }
675         if (session_id_prefix)
676                 {
677                 if(strlen(session_id_prefix) >= 32)
678                         BIO_printf(bio_err,
679 "warning: id_prefix is too long, only one new session will be possible\n");
680                 else if(strlen(session_id_prefix) >= 16)
681                         BIO_printf(bio_err,
682 "warning: id_prefix is too long if you use SSLv2\n");
683                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
684                         {
685                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
686                         ERR_print_errors(bio_err);
687                         goto end;
688                         }
689                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
690                 }
691         SSL_CTX_set_quiet_shutdown(ctx,1);
692         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
693         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
694         SSL_CTX_set_options(ctx,off);
695         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NON_EXPORT_FIRST);
696
697         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
698
699         SSL_CTX_sess_set_cache_size(ctx,128);
700
701 #if 0
702         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
703 #endif
704
705 #if 0
706         if (s_cert_file == NULL)
707                 {
708                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
709                 goto end;
710                 }
711 #endif
712
713         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
714                 (!SSL_CTX_set_default_verify_paths(ctx)))
715                 {
716                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
717                 ERR_print_errors(bio_err);
718                 /* goto end; */
719                 }
720
721 #ifndef OPENSSL_NO_DH
722         if (!no_dhe)
723                 {
724                 DH *dh=NULL;
725
726                 if (dhfile)
727                         dh = load_dh_param(dhfile);
728                 else if (s_cert_file)
729                         dh = load_dh_param(s_cert_file);
730
731                 if (dh != NULL)
732                         {
733                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
734                         }
735                 else
736                         {
737                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
738                         dh=get_dh512();
739                         }
740                 (void)BIO_flush(bio_s_out);
741
742                 SSL_CTX_set_tmp_dh(ctx,dh);
743                 DH_free(dh);
744                 }
745 #endif
746         
747         if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
748                 goto end;
749         if (s_dcert_file != NULL)
750                 {
751                 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
752                         goto end;
753                 }
754
755 #ifndef OPENSSL_NO_RSA
756 #if 1
757         if (!no_tmp_rsa)
758                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
759 #else
760         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
761                 {
762                 RSA *rsa;
763
764                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
765                 BIO_flush(bio_s_out);
766
767                 rsa=RSA_generate_key(512,RSA_F4,NULL);
768
769                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
770                         {
771                         ERR_print_errors(bio_err);
772                         goto end;
773                         }
774                 RSA_free(rsa);
775                 BIO_printf(bio_s_out,"\n");
776                 }
777 #endif
778 #endif
779
780         if (cipher != NULL)
781                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
782                 BIO_printf(bio_err,"error setting cipher list\n");
783                 ERR_print_errors(bio_err);
784                 goto end;
785         }
786         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
787         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
788                 sizeof s_server_session_id_context);
789
790         if (CAfile != NULL)
791             SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
792
793         BIO_printf(bio_s_out,"ACCEPT\n");
794         if (www)
795                 do_server(port,&accept_socket,www_body, context);
796         else
797                 do_server(port,&accept_socket,sv_body, context);
798         print_stats(bio_s_out,ctx);
799         ret=0;
800 end:
801         if (ctx != NULL) SSL_CTX_free(ctx);
802         if (bio_s_out != NULL)
803                 {
804                 BIO_free(bio_s_out);
805                 bio_s_out=NULL;
806                 }
807         EXIT(ret);
808         }
809
810 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
811         {
812         BIO_printf(bio,"%4ld items in the session cache\n",
813                 SSL_CTX_sess_number(ssl_ctx));
814         BIO_printf(bio,"%4d client connects (SSL_connect())\n",
815                 SSL_CTX_sess_connect(ssl_ctx));
816         BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
817                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
818         BIO_printf(bio,"%4d client connects that finished\n",
819                 SSL_CTX_sess_connect_good(ssl_ctx));
820         BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
821                 SSL_CTX_sess_accept(ssl_ctx));
822         BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
823                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
824         BIO_printf(bio,"%4d server accepts that finished\n",
825                 SSL_CTX_sess_accept_good(ssl_ctx));
826         BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
827         BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
828         BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
829         BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
830         BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
831                 SSL_CTX_sess_cache_full(ssl_ctx),
832                 SSL_CTX_sess_get_cache_size(ssl_ctx));
833         }
834
835 static int sv_body(char *hostname, int s, unsigned char *context)
836         {
837         char *buf=NULL;
838         fd_set readfds;
839         int ret=1,width;
840         int k,i;
841         unsigned long l;
842         SSL *con=NULL;
843         BIO *sbio;
844 #ifdef OPENSSL_SYS_WINDOWS
845         struct timeval tv;
846 #endif
847
848         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
849                 {
850                 BIO_printf(bio_err,"out of memory\n");
851                 goto err;
852                 }
853 #ifdef FIONBIO  
854         if (s_nbio)
855                 {
856                 unsigned long sl=1;
857
858                 if (!s_quiet)
859                         BIO_printf(bio_err,"turning on non blocking io\n");
860                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
861                         ERR_print_errors(bio_err);
862                 }
863 #endif
864
865         if (con == NULL) {
866                 con=SSL_new(ctx);
867 #ifndef OPENSSL_NO_KRB5
868                 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
869                         {
870                         kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC);
871                         kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB);
872                         }
873 #endif  /* OPENSSL_NO_KRB5 */
874                 if(context)
875                       SSL_set_session_id_context(con, context,
876                                                  strlen((char *)context));
877         }
878         SSL_clear(con);
879
880         sbio=BIO_new_socket(s,BIO_NOCLOSE);
881         if (s_nbio_test)
882                 {
883                 BIO *test;
884
885                 test=BIO_new(BIO_f_nbio_test());
886                 sbio=BIO_push(test,sbio);
887                 }
888         SSL_set_bio(con,sbio,sbio);
889         SSL_set_accept_state(con);
890         /* SSL_set_fd(con,s); */
891
892         if (s_debug)
893                 {
894                 con->debug=1;
895                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
896                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
897                 }
898
899         width=s+1;
900         for (;;)
901                 {
902                 int read_from_terminal;
903                 int read_from_sslcon;
904
905                 read_from_terminal = 0;
906                 read_from_sslcon = SSL_pending(con);
907
908                 if (!read_from_sslcon)
909                         {
910                         FD_ZERO(&readfds);
911 #ifndef OPENSSL_SYS_WINDOWS
912                         FD_SET(fileno(stdin),&readfds);
913 #endif
914                         FD_SET(s,&readfds);
915                         /* Note: under VMS with SOCKETSHR the second parameter is
916                          * currently of type (int *) whereas under other systems
917                          * it is (void *) if you don't have a cast it will choke
918                          * the compiler: if you do have a cast then you can either
919                          * go for (int *) or (void *).
920                          */
921 #ifdef OPENSSL_SYS_WINDOWS
922                         /* Under Windows we can't select on stdin: only
923                          * on sockets. As a workaround we timeout the select every
924                          * second and check for any keypress. In a proper Windows
925                          * application we wouldn't do this because it is inefficient.
926                          */
927                         tv.tv_sec = 1;
928                         tv.tv_usec = 0;
929                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
930                         if((i < 0) || (!i && !_kbhit() ) )continue;
931                         if(_kbhit())
932                                 read_from_terminal = 1;
933 #else
934                         i=select(width,(void *)&readfds,NULL,NULL,NULL);
935                         if (i <= 0) continue;
936                         if (FD_ISSET(fileno(stdin),&readfds))
937                                 read_from_terminal = 1;
938 #endif
939                         if (FD_ISSET(s,&readfds))
940                                 read_from_sslcon = 1;
941                         }
942                 if (read_from_terminal)
943                         {
944                         if (s_crlf)
945                                 {
946                                 int j, lf_num;
947
948                                 i=read(fileno(stdin), buf, bufsize/2);
949                                 lf_num = 0;
950                                 /* both loops are skipped when i <= 0 */
951                                 for (j = 0; j < i; j++)
952                                         if (buf[j] == '\n')
953                                                 lf_num++;
954                                 for (j = i-1; j >= 0; j--)
955                                         {
956                                         buf[j+lf_num] = buf[j];
957                                         if (buf[j] == '\n')
958                                                 {
959                                                 lf_num--;
960                                                 i++;
961                                                 buf[j+lf_num] = '\r';
962                                                 }
963                                         }
964                                 assert(lf_num == 0);
965                                 }
966                         else
967                                 i=read(fileno(stdin),buf,bufsize);
968                         if (!s_quiet)
969                                 {
970                                 if ((i <= 0) || (buf[0] == 'Q'))
971                                         {
972                                         BIO_printf(bio_s_out,"DONE\n");
973                                         SHUTDOWN(s);
974                                         close_accept_socket();
975                                         ret= -11;
976                                         goto err;
977                                         }
978                                 if ((i <= 0) || (buf[0] == 'q'))
979                                         {
980                                         BIO_printf(bio_s_out,"DONE\n");
981                                         SHUTDOWN(s);
982         /*                              close_accept_socket();
983                                         ret= -11;*/
984                                         goto err;
985                                         }
986                                 if ((buf[0] == 'r') && 
987                                         ((buf[1] == '\n') || (buf[1] == '\r')))
988                                         {
989                                         SSL_renegotiate(con);
990                                         i=SSL_do_handshake(con);
991                                         printf("SSL_do_handshake -> %d\n",i);
992                                         i=0; /*13; */
993                                         continue;
994                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
995                                         }
996                                 if ((buf[0] == 'R') &&
997                                         ((buf[1] == '\n') || (buf[1] == '\r')))
998                                         {
999                                         SSL_set_verify(con,
1000                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
1001                                         SSL_renegotiate(con);
1002                                         i=SSL_do_handshake(con);
1003                                         printf("SSL_do_handshake -> %d\n",i);
1004                                         i=0; /* 13; */
1005                                         continue;
1006                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
1007                                         }
1008                                 if (buf[0] == 'P')
1009                                         {
1010                                         static char *str="Lets print some clear text\n";
1011                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
1012                                         }
1013                                 if (buf[0] == 'S')
1014                                         {
1015                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
1016                                         }
1017                                 }
1018 #ifdef CHARSET_EBCDIC
1019                         ebcdic2ascii(buf,buf,i);
1020 #endif
1021                         l=k=0;
1022                         for (;;)
1023                                 {
1024                                 /* should do a select for the write */
1025 #ifdef RENEG
1026 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
1027 #endif
1028                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
1029                                 switch (SSL_get_error(con,k))
1030                                         {
1031                                 case SSL_ERROR_NONE:
1032                                         break;
1033                                 case SSL_ERROR_WANT_WRITE:
1034                                 case SSL_ERROR_WANT_READ:
1035                                 case SSL_ERROR_WANT_X509_LOOKUP:
1036                                         BIO_printf(bio_s_out,"Write BLOCK\n");
1037                                         break;
1038                                 case SSL_ERROR_SYSCALL:
1039                                 case SSL_ERROR_SSL:
1040                                         BIO_printf(bio_s_out,"ERROR\n");
1041                                         ERR_print_errors(bio_err);
1042                                         ret=1;
1043                                         goto err;
1044                                         /* break; */
1045                                 case SSL_ERROR_ZERO_RETURN:
1046                                         BIO_printf(bio_s_out,"DONE\n");
1047                                         ret=1;
1048                                         goto err;
1049                                         }
1050                                 l+=k;
1051                                 i-=k;
1052                                 if (i <= 0) break;
1053                                 }
1054                         }
1055                 if (read_from_sslcon)
1056                         {
1057                         if (!SSL_is_init_finished(con))
1058                                 {
1059                                 i=init_ssl_connection(con);
1060                                 
1061                                 if (i < 0)
1062                                         {
1063                                         ret=0;
1064                                         goto err;
1065                                         }
1066                                 else if (i == 0)
1067                                         {
1068                                         ret=1;
1069                                         goto err;
1070                                         }
1071                                 }
1072                         else
1073                                 {
1074 again:  
1075                                 i=SSL_read(con,(char *)buf,bufsize);
1076                                 switch (SSL_get_error(con,i))
1077                                         {
1078                                 case SSL_ERROR_NONE:
1079 #ifdef CHARSET_EBCDIC
1080                                         ascii2ebcdic(buf,buf,i);
1081 #endif
1082                                         write(fileno(stdout),buf,
1083                                                 (unsigned int)i);
1084                                         if (SSL_pending(con)) goto again;
1085                                         break;
1086                                 case SSL_ERROR_WANT_WRITE:
1087                                 case SSL_ERROR_WANT_READ:
1088                                 case SSL_ERROR_WANT_X509_LOOKUP:
1089                                         BIO_printf(bio_s_out,"Read BLOCK\n");
1090                                         break;
1091                                 case SSL_ERROR_SYSCALL:
1092                                 case SSL_ERROR_SSL:
1093                                         BIO_printf(bio_s_out,"ERROR\n");
1094                                         ERR_print_errors(bio_err);
1095                                         ret=1;
1096                                         goto err;
1097                                 case SSL_ERROR_ZERO_RETURN:
1098                                         BIO_printf(bio_s_out,"DONE\n");
1099                                         ret=1;
1100                                         goto err;
1101                                         }
1102                                 }
1103                         }
1104                 }
1105 err:
1106         BIO_printf(bio_s_out,"shutting down SSL\n");
1107 #if 1
1108         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1109 #else
1110         SSL_shutdown(con);
1111 #endif
1112         if (con != NULL) SSL_free(con);
1113         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1114         if (buf != NULL)
1115                 {
1116                 memset(buf,0,bufsize);
1117                 OPENSSL_free(buf);
1118                 }
1119         if (ret >= 0)
1120                 BIO_printf(bio_s_out,"ACCEPT\n");
1121         return(ret);
1122         }
1123
1124 static void close_accept_socket(void)
1125         {
1126         BIO_printf(bio_err,"shutdown accept socket\n");
1127         if (accept_socket >= 0)
1128                 {
1129                 SHUTDOWN2(accept_socket);
1130                 }
1131         }
1132
1133 static int init_ssl_connection(SSL *con)
1134         {
1135         int i;
1136         const char *str;
1137         X509 *peer;
1138         long verify_error;
1139         MS_STATIC char buf[BUFSIZ];
1140
1141         if ((i=SSL_accept(con)) <= 0)
1142                 {
1143                 if (BIO_sock_should_retry(i))
1144                         {
1145                         BIO_printf(bio_s_out,"DELAY\n");
1146                         return(1);
1147                         }
1148
1149                 BIO_printf(bio_err,"ERROR\n");
1150                 verify_error=SSL_get_verify_result(con);
1151                 if (verify_error != X509_V_OK)
1152                         {
1153                         BIO_printf(bio_err,"verify error:%s\n",
1154                                 X509_verify_cert_error_string(verify_error));
1155                         }
1156                 else
1157                         ERR_print_errors(bio_err);
1158                 return(0);
1159                 }
1160
1161         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1162
1163         peer=SSL_get_peer_certificate(con);
1164         if (peer != NULL)
1165                 {
1166                 BIO_printf(bio_s_out,"Client certificate\n");
1167                 PEM_write_bio_X509(bio_s_out,peer);
1168                 X509_NAME_oneline(X509_get_subject_name(peer),buf,BUFSIZ);
1169                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1170                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,BUFSIZ);
1171                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1172                 X509_free(peer);
1173                 }
1174
1175         if (SSL_get_shared_ciphers(con,buf,BUFSIZ) != NULL)
1176                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1177         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1178         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1179         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1180         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1181                 TLS1_FLAGS_TLS_PADDING_BUG)
1182                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1183
1184         return(1);
1185         }
1186
1187 #ifndef OPENSSL_NO_DH
1188 static DH *load_dh_param(char *dhfile)
1189         {
1190         DH *ret=NULL;
1191         BIO *bio;
1192
1193         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
1194                 goto err;
1195         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1196 err:
1197         if (bio != NULL) BIO_free(bio);
1198         return(ret);
1199         }
1200 #endif
1201
1202 #if 0
1203 static int load_CA(SSL_CTX *ctx, char *file)
1204         {
1205         FILE *in;
1206         X509 *x=NULL;
1207
1208         if ((in=fopen(file,"r")) == NULL)
1209                 return(0);
1210
1211         for (;;)
1212                 {
1213                 if (PEM_read_X509(in,&x,NULL) == NULL)
1214                         break;
1215                 SSL_CTX_add_client_CA(ctx,x);
1216                 }
1217         if (x != NULL) X509_free(x);
1218         fclose(in);
1219         return(1);
1220         }
1221 #endif
1222
1223 static int www_body(char *hostname, int s, unsigned char *context)
1224         {
1225         char *buf=NULL;
1226         int ret=1;
1227         int i,j,k,blank,dot;
1228         struct stat st_buf;
1229         SSL *con;
1230         SSL_CIPHER *c;
1231         BIO *io,*ssl_bio,*sbio;
1232         long total_bytes;
1233
1234         buf=OPENSSL_malloc(bufsize);
1235         if (buf == NULL) return(0);
1236         io=BIO_new(BIO_f_buffer());
1237         ssl_bio=BIO_new(BIO_f_ssl());
1238         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1239
1240 #ifdef FIONBIO  
1241         if (s_nbio)
1242                 {
1243                 unsigned long sl=1;
1244
1245                 if (!s_quiet)
1246                         BIO_printf(bio_err,"turning on non blocking io\n");
1247                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1248                         ERR_print_errors(bio_err);
1249                 }
1250 #endif
1251
1252         /* lets make the output buffer a reasonable size */
1253         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1254
1255         if ((con=SSL_new(ctx)) == NULL) goto err;
1256         if(context) SSL_set_session_id_context(con, context,
1257                                                strlen((char *)context));
1258
1259         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1260         if (s_nbio_test)
1261                 {
1262                 BIO *test;
1263
1264                 test=BIO_new(BIO_f_nbio_test());
1265                 sbio=BIO_push(test,sbio);
1266                 }
1267         SSL_set_bio(con,sbio,sbio);
1268         SSL_set_accept_state(con);
1269
1270         /* SSL_set_fd(con,s); */
1271         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1272         BIO_push(io,ssl_bio);
1273 #ifdef CHARSET_EBCDIC
1274         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1275 #endif
1276
1277         if (s_debug)
1278                 {
1279                 con->debug=1;
1280                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1281                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1282                 }
1283
1284         blank=0;
1285         for (;;)
1286                 {
1287                 if (hack)
1288                         {
1289                         i=SSL_accept(con);
1290
1291                         switch (SSL_get_error(con,i))
1292                                 {
1293                         case SSL_ERROR_NONE:
1294                                 break;
1295                         case SSL_ERROR_WANT_WRITE:
1296                         case SSL_ERROR_WANT_READ:
1297                         case SSL_ERROR_WANT_X509_LOOKUP:
1298                                 continue;
1299                         case SSL_ERROR_SYSCALL:
1300                         case SSL_ERROR_SSL:
1301                         case SSL_ERROR_ZERO_RETURN:
1302                                 ret=1;
1303                                 goto err;
1304                                 /* break; */
1305                                 }
1306
1307                         SSL_renegotiate(con);
1308                         SSL_write(con,NULL,0);
1309                         }
1310
1311                 i=BIO_gets(io,buf,bufsize-1);
1312                 if (i < 0) /* error */
1313                         {
1314                         if (!BIO_should_retry(io))
1315                                 {
1316                                 if (!s_quiet)
1317                                         ERR_print_errors(bio_err);
1318                                 goto err;
1319                                 }
1320                         else
1321                                 {
1322                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1323 #ifndef OPENSSL_SYS_MSDOS
1324                                 sleep(1);
1325 #endif
1326                                 continue;
1327                                 }
1328                         }
1329                 else if (i == 0) /* end of input */
1330                         {
1331                         ret=1;
1332                         goto end;
1333                         }
1334
1335                 /* else we have data */
1336                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1337                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1338                         {
1339                         char *p;
1340                         X509 *peer;
1341                         STACK_OF(SSL_CIPHER) *sk;
1342                         static char *space="                          ";
1343
1344                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1345                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1346                         BIO_puts(io,"<pre>\n");
1347 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1348                         BIO_puts(io,"\n");
1349                         for (i=0; i<local_argc; i++)
1350                                 {
1351                                 BIO_puts(io,local_argv[i]);
1352                                 BIO_write(io," ",1);
1353                                 }
1354                         BIO_puts(io,"\n");
1355
1356                         /* The following is evil and should not really
1357                          * be done */
1358                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1359                         sk=SSL_get_ciphers(con);
1360                         j=sk_SSL_CIPHER_num(sk);
1361                         for (i=0; i<j; i++)
1362                                 {
1363                                 c=sk_SSL_CIPHER_value(sk,i);
1364                                 BIO_printf(io,"%-11s:%-25s",
1365                                         SSL_CIPHER_get_version(c),
1366                                         SSL_CIPHER_get_name(c));
1367                                 if ((((i+1)%2) == 0) && (i+1 != j))
1368                                         BIO_puts(io,"\n");
1369                                 }
1370                         BIO_puts(io,"\n");
1371                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1372                         if (p != NULL)
1373                                 {
1374                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1375                                 j=i=0;
1376                                 while (*p)
1377                                         {
1378                                         if (*p == ':')
1379                                                 {
1380                                                 BIO_write(io,space,26-j);
1381                                                 i++;
1382                                                 j=0;
1383                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1384                                                 }
1385                                         else
1386                                                 {
1387                                                 BIO_write(io,p,1);
1388                                                 j++;
1389                                                 }
1390                                         p++;
1391                                         }
1392                                 BIO_puts(io,"\n");
1393                                 }
1394                         BIO_printf(io,((con->hit)
1395                                 ?"---\nReused, "
1396                                 :"---\nNew, "));
1397                         c=SSL_get_current_cipher(con);
1398                         BIO_printf(io,"%s, Cipher is %s\n",
1399                                 SSL_CIPHER_get_version(c),
1400                                 SSL_CIPHER_get_name(c));
1401                         SSL_SESSION_print(io,SSL_get_session(con));
1402                         BIO_printf(io,"---\n");
1403                         print_stats(io,SSL_get_SSL_CTX(con));
1404                         BIO_printf(io,"---\n");
1405                         peer=SSL_get_peer_certificate(con);
1406                         if (peer != NULL)
1407                                 {
1408                                 BIO_printf(io,"Client certificate\n");
1409                                 X509_print(io,peer);
1410                                 PEM_write_bio_X509(io,peer);
1411                                 }
1412                         else
1413                                 BIO_puts(io,"no client certificate available\n");
1414                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1415                         break;
1416                         }
1417                 else if ((www == 2) && (strncmp("GET /",buf,5) == 0))
1418                         {
1419                         BIO *file;
1420                         char *p,*e;
1421                         static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1422
1423                         /* skip the '/' */
1424                         p= &(buf[5]);
1425                         dot=0;
1426                         for (e=p; *e != '\0'; e++)
1427                                 {
1428                                 if (e[0] == ' ') break;
1429                                 if (    (e[0] == '.') &&
1430                                         (strncmp(&(e[-1]),"/../",4) == 0))
1431                                         dot=1;
1432                                 }
1433                         
1434
1435                         if (*e == '\0')
1436                                 {
1437                                 BIO_puts(io,text);
1438                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1439                                 break;
1440                                 }
1441                         *e='\0';
1442
1443                         if (dot)
1444                                 {
1445                                 BIO_puts(io,text);
1446                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1447                                 break;
1448                                 }
1449
1450                         if (*p == '/')
1451                                 {
1452                                 BIO_puts(io,text);
1453                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1454                                 break;
1455                                 }
1456
1457                         /* append if a directory lookup */
1458                         if (e[-1] == '/')
1459                                 strcat(p,"index.html");
1460
1461                         /* if a directory, do the index thang */
1462                         if (stat(p,&st_buf) < 0)
1463                                 {
1464                                 BIO_puts(io,text);
1465                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1466                                 ERR_print_errors(io);
1467                                 break;
1468                                 }
1469                         if (S_ISDIR(st_buf.st_mode))
1470                                 {
1471                                 strcat(p,"/index.html");
1472                                 }
1473
1474                         if ((file=BIO_new_file(p,"r")) == NULL)
1475                                 {
1476                                 BIO_puts(io,text);
1477                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1478                                 ERR_print_errors(io);
1479                                 break;
1480                                 }
1481
1482                         if (!s_quiet)
1483                                 BIO_printf(bio_err,"FILE:%s\n",p);
1484
1485                         i=strlen(p);
1486                         if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1487                                 ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1488                                 ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1489                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1490                         else
1491                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1492                         /* send the file */
1493                         total_bytes=0;
1494                         for (;;)
1495                                 {
1496                                 i=BIO_read(file,buf,bufsize);
1497                                 if (i <= 0) break;
1498
1499 #ifdef RENEG
1500                                 total_bytes+=i;
1501                                 fprintf(stderr,"%d\n",i);
1502                                 if (total_bytes > 3*1024)
1503                                         {
1504                                         total_bytes=0;
1505                                         fprintf(stderr,"RENEGOTIATE\n");
1506                                         SSL_renegotiate(con);
1507                                         }
1508 #endif
1509
1510                                 for (j=0; j<i; )
1511                                         {
1512 #ifdef RENEG
1513 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1514 #endif
1515                                         k=BIO_write(io,&(buf[j]),i-j);
1516                                         if (k <= 0)
1517                                                 {
1518                                                 if (!BIO_should_retry(io))
1519                                                         goto write_error;
1520                                                 else
1521                                                         {
1522                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1523                                                         }
1524                                                 }
1525                                         else
1526                                                 {
1527                                                 j+=k;
1528                                                 }
1529                                         }
1530                                 }
1531 write_error:
1532                         BIO_free(file);
1533                         break;
1534                         }
1535                 }
1536
1537         for (;;)
1538                 {
1539                 i=(int)BIO_flush(io);
1540                 if (i <= 0)
1541                         {
1542                         if (!BIO_should_retry(io))
1543                                 break;
1544                         }
1545                 else
1546                         break;
1547                 }
1548 end:
1549 #if 1
1550         /* make sure we re-use sessions */
1551         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1552 #else
1553         /* This kills performance */
1554 /*      SSL_shutdown(con); A shutdown gets sent in the
1555  *      BIO_free_all(io) procession */
1556 #endif
1557
1558 err:
1559
1560         if (ret >= 0)
1561                 BIO_printf(bio_s_out,"ACCEPT\n");
1562
1563         if (buf != NULL) OPENSSL_free(buf);
1564         if (io != NULL) BIO_free_all(io);
1565 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1566         return(ret);
1567         }
1568
1569 #ifndef OPENSSL_NO_RSA
1570 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1571         {
1572         static RSA *rsa_tmp=NULL;
1573
1574         if (rsa_tmp == NULL)
1575                 {
1576                 if (!s_quiet)
1577                         {
1578                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1579                         (void)BIO_flush(bio_err);
1580                         }
1581                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1582                 if (!s_quiet)
1583                         {
1584                         BIO_printf(bio_err,"\n");
1585                         (void)BIO_flush(bio_err);
1586                         }
1587                 }
1588         return(rsa_tmp);
1589         }
1590 #endif
1591
1592 #define MAX_SESSION_ID_ATTEMPTS 10
1593 static int generate_session_id(const SSL *ssl, unsigned char *id,
1594                                 unsigned int *id_len)
1595         {
1596         unsigned int count = 0;
1597         do      {
1598                 RAND_pseudo_bytes(id, *id_len);
1599                 /* Prefix the session_id with the required prefix. NB: If our
1600                  * prefix is too long, clip it - but there will be worse effects
1601                  * anyway, eg. the server could only possibly create 1 session
1602                  * ID (ie. the prefix!) so all future session negotiations will
1603                  * fail due to conflicts. */
1604                 memcpy(id, session_id_prefix,
1605                         (strlen(session_id_prefix) < *id_len) ?
1606                         strlen(session_id_prefix) : *id_len);
1607                 }
1608         while(SSL_CTX_has_matching_session_id(ssl->ctx, id, *id_len) &&
1609                 (++count < MAX_SESSION_ID_ATTEMPTS));
1610         if(count >= MAX_SESSION_ID_ATTEMPTS)
1611                 return 0;
1612         return 1;
1613         }