3828d79e7d6ce5670e26fbf45f566e0668f09bdf
[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 OPENSSL_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(OPENSSL_SYS_VMS_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 <openssl/engine.h>
87 #include "s_apps.h"
88
89 #ifdef OPENSSL_SYS_WINDOWS
90 #include <conio.h>
91 #endif
92
93 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
94 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
95 #undef FIONBIO
96 #endif
97
98 #ifndef OPENSSL_NO_RSA
99 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
100 #endif
101 static int sv_body(char *hostname, int s, unsigned char *context);
102 static int www_body(char *hostname, int s, unsigned char *context);
103 static void close_accept_socket(void );
104 static void sv_usage(void);
105 static int init_ssl_connection(SSL *s);
106 static void print_stats(BIO *bp,SSL_CTX *ctx);
107 #ifndef OPENSSL_NO_DH
108 static DH *load_dh_param(char *dhfile);
109 static DH *get_dh512(void);
110 #endif
111 #ifdef MONOLITH
112 static void s_server_init(void);
113 #endif
114
115 #ifndef S_ISDIR
116 # if defined(_S_IFMT) && defined(_S_IFDIR)
117 #  define S_ISDIR(a)    (((a) & _S_IFMT) == _S_IFDIR)
118 # else
119 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
120 # endif
121 #endif
122
123 #ifndef OPENSSL_NO_DH
124 static unsigned char dh512_p[]={
125         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
126         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
127         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
128         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
129         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
130         0x47,0x74,0xE8,0x33,
131         };
132 static unsigned char dh512_g[]={
133         0x02,
134         };
135
136 static DH *get_dh512(void)
137         {
138         DH *dh=NULL;
139
140         if ((dh=DH_new()) == NULL) return(NULL);
141         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
142         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
143         if ((dh->p == NULL) || (dh->g == NULL))
144                 return(NULL);
145         return(dh);
146         }
147 #endif
148
149 /* static int load_CA(SSL_CTX *ctx, char *file);*/
150
151 #undef BUFSIZZ
152 #define BUFSIZZ 16*1024
153 static int bufsize=BUFSIZZ;
154 static int accept_socket= -1;
155
156 #define TEST_CERT       "server.pem"
157 #undef PROG
158 #define PROG            s_server_main
159
160 extern int verify_depth;
161
162 static char *cipher=NULL;
163 static int s_server_verify=SSL_VERIFY_NONE;
164 static int s_server_session_id_context = 1; /* anything will do */
165 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
166 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
167 #ifdef FIONBIO
168 static int s_nbio=0;
169 #endif
170 static int s_nbio_test=0;
171 int s_crlf=0;
172 static SSL_CTX *ctx=NULL;
173 static int www=0;
174
175 static BIO *bio_s_out=NULL;
176 static int s_debug=0;
177 static int s_quiet=0;
178
179 static int hack=0;
180 static char *engine_id=NULL;
181
182 #ifdef MONOLITH
183 static void s_server_init(void)
184         {
185         accept_socket=-1;
186         cipher=NULL;
187         s_server_verify=SSL_VERIFY_NONE;
188         s_dcert_file=NULL;
189         s_dkey_file=NULL;
190         s_cert_file=TEST_CERT;
191         s_key_file=NULL;
192 #ifdef FIONBIO
193         s_nbio=0;
194 #endif
195         s_nbio_test=0;
196         ctx=NULL;
197         www=0;
198
199         bio_s_out=NULL;
200         s_debug=0;
201         s_quiet=0;
202         hack=0;
203         engine_id=NULL;
204         }
205 #endif
206
207 static void sv_usage(void)
208         {
209         BIO_printf(bio_err,"usage: s_server [args ...]\n");
210         BIO_printf(bio_err,"\n");
211         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
212         BIO_printf(bio_err," -context arg  - set session ID context\n");
213         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
214         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
215         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
216         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
217         BIO_printf(bio_err," -key arg      - Private Key file to use, PEM format assumed, in cert file if\n");
218         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
219         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
220         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
221         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
222         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
223 #ifdef FIONBIO
224         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
225 #endif
226         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
227         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
228         BIO_printf(bio_err," -debug        - Print more output\n");
229         BIO_printf(bio_err," -state        - Print the SSL states\n");
230         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
231         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
232         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
233         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
234         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
235         BIO_printf(bio_err," -quiet        - No server output\n");
236         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
237         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
238         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
239         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
240         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
241         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
242         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
243 #ifndef OPENSSL_NO_DH
244         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
245 #endif
246         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
247         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
248         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
249         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
250         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
251         }
252
253 static int local_argc=0;
254 static char **local_argv;
255
256 #ifdef CHARSET_EBCDIC
257 static int ebcdic_new(BIO *bi);
258 static int ebcdic_free(BIO *a);
259 static int ebcdic_read(BIO *b, char *out, int outl);
260 static int ebcdic_write(BIO *b, char *in, int inl);
261 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr);
262 static int ebcdic_gets(BIO *bp, char *buf, int size);
263 static int ebcdic_puts(BIO *bp, char *str);
264
265 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
266 static BIO_METHOD methods_ebcdic=
267         {
268         BIO_TYPE_EBCDIC_FILTER,
269         "EBCDIC/ASCII filter",
270         ebcdic_write,
271         ebcdic_read,
272         ebcdic_puts,
273         ebcdic_gets,
274         ebcdic_ctrl,
275         ebcdic_new,
276         ebcdic_free,
277         };
278
279 typedef struct
280 {
281         size_t  alloced;
282         char    buff[1];
283 } EBCDIC_OUTBUFF;
284
285 BIO_METHOD *BIO_f_ebcdic_filter()
286 {
287         return(&methods_ebcdic);
288 }
289
290 static int ebcdic_new(BIO *bi)
291 {
292         EBCDIC_OUTBUFF *wbuf;
293
294         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
295         wbuf->alloced = 1024;
296         wbuf->buff[0] = '\0';
297
298         bi->ptr=(char *)wbuf;
299         bi->init=1;
300         bi->flags=0;
301         return(1);
302 }
303
304 static int ebcdic_free(BIO *a)
305 {
306         if (a == NULL) return(0);
307         if (a->ptr != NULL)
308                 OPENSSL_free(a->ptr);
309         a->ptr=NULL;
310         a->init=0;
311         a->flags=0;
312         return(1);
313 }
314         
315 static int ebcdic_read(BIO *b, char *out, int outl)
316 {
317         int ret=0;
318
319         if (out == NULL || outl == 0) return(0);
320         if (b->next_bio == NULL) return(0);
321
322         ret=BIO_read(b->next_bio,out,outl);
323         if (ret > 0)
324                 ascii2ebcdic(out,out,ret);
325         return(ret);
326 }
327
328 static int ebcdic_write(BIO *b, char *in, int inl)
329 {
330         EBCDIC_OUTBUFF *wbuf;
331         int ret=0;
332         int num;
333         unsigned char n;
334
335         if ((in == NULL) || (inl <= 0)) return(0);
336         if (b->next_bio == NULL) return(0);
337
338         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
339
340         if (inl > (num = wbuf->alloced))
341         {
342                 num = num + num;  /* double the size */
343                 if (num < inl)
344                         num = inl;
345                 OPENSSL_free(wbuf);
346                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
347
348                 wbuf->alloced = num;
349                 wbuf->buff[0] = '\0';
350
351                 b->ptr=(char *)wbuf;
352         }
353
354         ebcdic2ascii(wbuf->buff, in, inl);
355
356         ret=BIO_write(b->next_bio, wbuf->buff, inl);
357
358         return(ret);
359 }
360
361 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr)
362 {
363         long ret;
364
365         if (b->next_bio == NULL) return(0);
366         switch (cmd)
367         {
368         case BIO_CTRL_DUP:
369                 ret=0L;
370                 break;
371         default:
372                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
373                 break;
374         }
375         return(ret);
376 }
377
378 static int ebcdic_gets(BIO *bp, char *buf, int size)
379 {
380         int i, ret;
381         if (bp->next_bio == NULL) return(0);
382 /*      return(BIO_gets(bp->next_bio,buf,size));*/
383         for (i=0; i<size-1; ++i)
384         {
385                 ret = ebcdic_read(bp,&buf[i],1);
386                 if (ret <= 0)
387                         break;
388                 else if (buf[i] == '\n')
389                 {
390                         ++i;
391                         break;
392                 }
393         }
394         if (i < size)
395                 buf[i] = '\0';
396         return (ret < 0 && i == 0) ? ret : i;
397 }
398
399 static int ebcdic_puts(BIO *bp, char *str)
400 {
401         if (bp->next_bio == NULL) return(0);
402         return ebcdic_write(bp, str, strlen(str));
403 }
404 #endif
405
406 int MAIN(int, char **);
407
408 int MAIN(int argc, char *argv[])
409         {
410         short port=PORT;
411         char *CApath=NULL,*CAfile=NULL;
412         char *context = NULL;
413         char *dhfile = NULL;
414         int badop=0,bugs=0;
415         int ret=1;
416         int off=0;
417         int no_tmp_rsa=0,no_dhe=0,nocert=0;
418         int state=0;
419         SSL_METHOD *meth=NULL;
420         ENGINE *e=NULL;
421         char *inrand=NULL;
422
423 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
424         meth=SSLv23_server_method();
425 #elif !defined(OPENSSL_NO_SSL3)
426         meth=SSLv3_server_method();
427 #elif !defined(OPENSSL_NO_SSL2)
428         meth=SSLv2_server_method();
429 #endif
430
431         local_argc=argc;
432         local_argv=argv;
433
434         apps_startup();
435 #ifdef MONOLITH
436         s_server_init();
437 #endif
438
439         if (bio_err == NULL)
440                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
441
442         verify_depth=0;
443 #ifdef FIONBIO
444         s_nbio=0;
445 #endif
446         s_nbio_test=0;
447
448         argc--;
449         argv++;
450
451         while (argc >= 1)
452                 {
453                 if      ((strcmp(*argv,"-port") == 0) ||
454                          (strcmp(*argv,"-accept") == 0))
455                         {
456                         if (--argc < 1) goto bad;
457                         if (!extract_port(*(++argv),&port))
458                                 goto bad;
459                         }
460                 else if (strcmp(*argv,"-verify") == 0)
461                         {
462                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
463                         if (--argc < 1) goto bad;
464                         verify_depth=atoi(*(++argv));
465                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
466                         }
467                 else if (strcmp(*argv,"-Verify") == 0)
468                         {
469                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
470                                 SSL_VERIFY_CLIENT_ONCE;
471                         if (--argc < 1) goto bad;
472                         verify_depth=atoi(*(++argv));
473                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
474                         }
475                 else if (strcmp(*argv,"-context") == 0)
476                         {
477                         if (--argc < 1) goto bad;
478                         context= *(++argv);
479                         }
480                 else if (strcmp(*argv,"-cert") == 0)
481                         {
482                         if (--argc < 1) goto bad;
483                         s_cert_file= *(++argv);
484                         }
485                 else if (strcmp(*argv,"-key") == 0)
486                         {
487                         if (--argc < 1) goto bad;
488                         s_key_file= *(++argv);
489                         }
490                 else if (strcmp(*argv,"-dhparam") == 0)
491                         {
492                         if (--argc < 1) goto bad;
493                         dhfile = *(++argv);
494                         }
495                 else if (strcmp(*argv,"-dcert") == 0)
496                         {
497                         if (--argc < 1) goto bad;
498                         s_dcert_file= *(++argv);
499                         }
500                 else if (strcmp(*argv,"-dkey") == 0)
501                         {
502                         if (--argc < 1) goto bad;
503                         s_dkey_file= *(++argv);
504                         }
505                 else if (strcmp(*argv,"-nocert") == 0)
506                         {
507                         nocert=1;
508                         }
509                 else if (strcmp(*argv,"-CApath") == 0)
510                         {
511                         if (--argc < 1) goto bad;
512                         CApath= *(++argv);
513                         }
514                 else if (strcmp(*argv,"-serverpref") == 0)
515                         { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
516                 else if (strcmp(*argv,"-cipher") == 0)
517                         {
518                         if (--argc < 1) goto bad;
519                         cipher= *(++argv);
520                         }
521                 else if (strcmp(*argv,"-CAfile") == 0)
522                         {
523                         if (--argc < 1) goto bad;
524                         CAfile= *(++argv);
525                         }
526 #ifdef FIONBIO  
527                 else if (strcmp(*argv,"-nbio") == 0)
528                         { s_nbio=1; }
529 #endif
530                 else if (strcmp(*argv,"-nbio_test") == 0)
531                         {
532 #ifdef FIONBIO  
533                         s_nbio=1;
534 #endif
535                         s_nbio_test=1;
536                         }
537                 else if (strcmp(*argv,"-debug") == 0)
538                         { s_debug=1; }
539                 else if (strcmp(*argv,"-hack") == 0)
540                         { hack=1; }
541                 else if (strcmp(*argv,"-state") == 0)
542                         { state=1; }
543                 else if (strcmp(*argv,"-crlf") == 0)
544                         { s_crlf=1; }
545                 else if (strcmp(*argv,"-quiet") == 0)
546                         { s_quiet=1; }
547                 else if (strcmp(*argv,"-bugs") == 0)
548                         { bugs=1; }
549                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
550                         { no_tmp_rsa=1; }
551                 else if (strcmp(*argv,"-no_dhe") == 0)
552                         { no_dhe=1; }
553                 else if (strcmp(*argv,"-www") == 0)
554                         { www=1; }
555                 else if (strcmp(*argv,"-WWW") == 0)
556                         { www=2; }
557                 else if (strcmp(*argv,"-no_ssl2") == 0)
558                         { off|=SSL_OP_NO_SSLv2; }
559                 else if (strcmp(*argv,"-no_ssl3") == 0)
560                         { off|=SSL_OP_NO_SSLv3; }
561                 else if (strcmp(*argv,"-no_tls1") == 0)
562                         { off|=SSL_OP_NO_TLSv1; }
563 #ifndef OPENSSL_NO_SSL2
564                 else if (strcmp(*argv,"-ssl2") == 0)
565                         { meth=SSLv2_server_method(); }
566 #endif
567 #ifndef OPENSSL_NO_SSL3
568                 else if (strcmp(*argv,"-ssl3") == 0)
569                         { meth=SSLv3_server_method(); }
570 #endif
571 #ifndef OPENSSL_NO_TLS1
572                 else if (strcmp(*argv,"-tls1") == 0)
573                         { meth=TLSv1_server_method(); }
574 #endif
575                 else if (strcmp(*argv,"-engine") == 0)
576                         {
577                         if (--argc < 1) goto bad;
578                         engine_id= *(++argv);
579                         }
580                 else if (strcmp(*argv,"-rand") == 0)
581                         {
582                         if (--argc < 1) goto bad;
583                         inrand= *(++argv);
584                         }
585                 else
586                         {
587                         BIO_printf(bio_err,"unknown option %s\n",*argv);
588                         badop=1;
589                         break;
590                         }
591                 argc--;
592                 argv++;
593                 }
594         if (badop)
595                 {
596 bad:
597                 sv_usage();
598                 goto end;
599                 }
600
601         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
602                 && !RAND_status())
603                 {
604                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
605                 }
606         if (inrand != NULL)
607                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
608                         app_RAND_load_files(inrand));
609
610         if (bio_s_out == NULL)
611                 {
612                 if (s_quiet && !s_debug)
613                         {
614                         bio_s_out=BIO_new(BIO_s_null());
615                         }
616                 else
617                         {
618                         if (bio_s_out == NULL)
619                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
620                         }
621                 }
622
623 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA)
624         if (nocert)
625 #endif
626                 {
627                 s_cert_file=NULL;
628                 s_key_file=NULL;
629                 s_dcert_file=NULL;
630                 s_dkey_file=NULL;
631                 }
632
633         SSL_load_error_strings();
634         OpenSSL_add_ssl_algorithms();
635
636         if (engine_id != NULL)
637                 {
638                 if((e = ENGINE_by_id(engine_id)) == NULL)
639                         {
640                         BIO_printf(bio_err,"invalid engine\n");
641                         ERR_print_errors(bio_err);
642                         goto end;
643                         }
644                 if (s_debug)
645                         {
646                         ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM,
647                                 0, bio_err, 0);
648                         }
649                 if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
650                         {
651                         BIO_printf(bio_err,"can't use that engine\n");
652                         ERR_print_errors(bio_err);
653                         goto end;
654                         }
655                 BIO_printf(bio_err,"engine \"%s\" set.\n", engine_id);
656                 ENGINE_free(e);
657                 }
658
659         ctx=SSL_CTX_new(meth);
660         if (ctx == NULL)
661                 {
662                 ERR_print_errors(bio_err);
663                 goto end;
664                 }
665
666         SSL_CTX_set_quiet_shutdown(ctx,1);
667         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
668         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
669         SSL_CTX_set_options(ctx,off);
670         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NON_EXPORT_FIRST);
671
672         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
673
674         SSL_CTX_sess_set_cache_size(ctx,128);
675
676 #if 0
677         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
678 #endif
679
680 #if 0
681         if (s_cert_file == NULL)
682                 {
683                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
684                 goto end;
685                 }
686 #endif
687
688         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
689                 (!SSL_CTX_set_default_verify_paths(ctx)))
690                 {
691                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
692                 ERR_print_errors(bio_err);
693                 /* goto end; */
694                 }
695
696 #ifndef OPENSSL_NO_DH
697         if (!no_dhe)
698                 {
699                 DH *dh=NULL;
700
701                 if (dhfile)
702                         dh = load_dh_param(dhfile);
703                 else if (s_cert_file)
704                         dh = load_dh_param(s_cert_file);
705
706                 if (dh != NULL)
707                         {
708                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
709                         }
710                 else
711                         {
712                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
713                         dh=get_dh512();
714                         }
715                 (void)BIO_flush(bio_s_out);
716
717                 SSL_CTX_set_tmp_dh(ctx,dh);
718                 DH_free(dh);
719                 }
720 #endif
721         
722         if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
723                 goto end;
724         if (s_dcert_file != NULL)
725                 {
726                 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
727                         goto end;
728                 }
729
730 #ifndef OPENSSL_NO_RSA
731 #if 1
732         SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
733 #else
734         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
735                 {
736                 RSA *rsa;
737
738                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
739                 BIO_flush(bio_s_out);
740
741                 rsa=RSA_generate_key(512,RSA_F4,NULL);
742
743                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
744                         {
745                         ERR_print_errors(bio_err);
746                         goto end;
747                         }
748                 RSA_free(rsa);
749                 BIO_printf(bio_s_out,"\n");
750                 }
751 #endif
752 #endif
753
754         if (cipher != NULL)
755                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
756                 BIO_printf(bio_err,"error setting cipher list\n");
757                 ERR_print_errors(bio_err);
758                 goto end;
759         }
760         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
761         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
762                 sizeof s_server_session_id_context);
763
764         if (CAfile != NULL)
765             SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
766
767         BIO_printf(bio_s_out,"ACCEPT\n");
768         if (www)
769                 do_server(port,&accept_socket,www_body, context);
770         else
771                 do_server(port,&accept_socket,sv_body, context);
772         print_stats(bio_s_out,ctx);
773         ret=0;
774 end:
775         if (ctx != NULL) SSL_CTX_free(ctx);
776         if (bio_s_out != NULL)
777                 {
778                 BIO_free(bio_s_out);
779                 bio_s_out=NULL;
780                 }
781         EXIT(ret);
782         }
783
784 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
785         {
786         BIO_printf(bio,"%4ld items in the session cache\n",
787                 SSL_CTX_sess_number(ssl_ctx));
788         BIO_printf(bio,"%4d client connects (SSL_connect())\n",
789                 SSL_CTX_sess_connect(ssl_ctx));
790         BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
791                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
792         BIO_printf(bio,"%4d client connects that finished\n",
793                 SSL_CTX_sess_connect_good(ssl_ctx));
794         BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
795                 SSL_CTX_sess_accept(ssl_ctx));
796         BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
797                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
798         BIO_printf(bio,"%4d server accepts that finished\n",
799                 SSL_CTX_sess_accept_good(ssl_ctx));
800         BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
801         BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
802         BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
803         BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
804         BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
805                 SSL_CTX_sess_cache_full(ssl_ctx),
806                 SSL_CTX_sess_get_cache_size(ssl_ctx));
807         }
808
809 static int sv_body(char *hostname, int s, unsigned char *context)
810         {
811         char *buf=NULL;
812         fd_set readfds;
813         int ret=1,width;
814         int k,i;
815         unsigned long l;
816         SSL *con=NULL;
817         BIO *sbio;
818 #ifdef OPENSSL_SYS_WINDOWS
819         struct timeval tv;
820 #endif
821
822         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
823                 {
824                 BIO_printf(bio_err,"out of memory\n");
825                 goto err;
826                 }
827 #ifdef FIONBIO  
828         if (s_nbio)
829                 {
830                 unsigned long sl=1;
831
832                 if (!s_quiet)
833                         BIO_printf(bio_err,"turning on non blocking io\n");
834                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
835                         ERR_print_errors(bio_err);
836                 }
837 #endif
838
839         if (con == NULL) {
840                 con=SSL_new(ctx);
841 #ifndef OPENSSL_NO_KRB5
842                 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
843                         {
844                         kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC);
845                         kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB);
846                         }
847 #endif  /* OPENSSL_NO_KRB5 */
848                 if(context)
849                       SSL_set_session_id_context(con, context,
850                                                  strlen((char *)context));
851         }
852         SSL_clear(con);
853
854         sbio=BIO_new_socket(s,BIO_NOCLOSE);
855         if (s_nbio_test)
856                 {
857                 BIO *test;
858
859                 test=BIO_new(BIO_f_nbio_test());
860                 sbio=BIO_push(test,sbio);
861                 }
862         SSL_set_bio(con,sbio,sbio);
863         SSL_set_accept_state(con);
864         /* SSL_set_fd(con,s); */
865
866         if (s_debug)
867                 {
868                 con->debug=1;
869                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
870                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
871                 }
872
873         width=s+1;
874         for (;;)
875                 {
876                 int read_from_terminal;
877                 int read_from_sslcon;
878
879                 read_from_terminal = 0;
880                 read_from_sslcon = SSL_pending(con);
881
882                 if (!read_from_sslcon)
883                         {
884                         FD_ZERO(&readfds);
885 #ifndef OPENSSL_SYS_WINDOWS
886                         FD_SET(fileno(stdin),&readfds);
887 #endif
888                         FD_SET(s,&readfds);
889                         /* Note: under VMS with SOCKETSHR the second parameter is
890                          * currently of type (int *) whereas under other systems
891                          * it is (void *) if you don't have a cast it will choke
892                          * the compiler: if you do have a cast then you can either
893                          * go for (int *) or (void *).
894                          */
895 #ifdef OPENSSL_SYS_WINDOWS
896                         /* Under Windows we can't select on stdin: only
897                          * on sockets. As a workaround we timeout the select every
898                          * second and check for any keypress. In a proper Windows
899                          * application we wouldn't do this because it is inefficient.
900                          */
901                         tv.tv_sec = 1;
902                         tv.tv_usec = 0;
903                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
904                         if((i < 0) || (!i && !_kbhit() ) )continue;
905                         if(_kbhit())
906                                 read_from_terminal = 1;
907 #else
908                         i=select(width,(void *)&readfds,NULL,NULL,NULL);
909                         if (i <= 0) continue;
910                         if (FD_ISSET(fileno(stdin),&readfds))
911                                 read_from_terminal = 1;
912 #endif
913                         if (FD_ISSET(s,&readfds))
914                                 read_from_sslcon = 1;
915                         }
916                 if (read_from_terminal)
917                         {
918                         if (s_crlf)
919                                 {
920                                 int j, lf_num;
921
922                                 i=read(fileno(stdin), buf, bufsize/2);
923                                 lf_num = 0;
924                                 /* both loops are skipped when i <= 0 */
925                                 for (j = 0; j < i; j++)
926                                         if (buf[j] == '\n')
927                                                 lf_num++;
928                                 for (j = i-1; j >= 0; j--)
929                                         {
930                                         buf[j+lf_num] = buf[j];
931                                         if (buf[j] == '\n')
932                                                 {
933                                                 lf_num--;
934                                                 i++;
935                                                 buf[j+lf_num] = '\r';
936                                                 }
937                                         }
938                                 assert(lf_num == 0);
939                                 }
940                         else
941                                 i=read(fileno(stdin),buf,bufsize);
942                         if (!s_quiet)
943                                 {
944                                 if ((i <= 0) || (buf[0] == 'Q'))
945                                         {
946                                         BIO_printf(bio_s_out,"DONE\n");
947                                         SHUTDOWN(s);
948                                         close_accept_socket();
949                                         ret= -11;
950                                         goto err;
951                                         }
952                                 if ((i <= 0) || (buf[0] == 'q'))
953                                         {
954                                         BIO_printf(bio_s_out,"DONE\n");
955                                         SHUTDOWN(s);
956         /*                              close_accept_socket();
957                                         ret= -11;*/
958                                         goto err;
959                                         }
960                                 if ((buf[0] == 'r') && 
961                                         ((buf[1] == '\n') || (buf[1] == '\r')))
962                                         {
963                                         SSL_renegotiate(con);
964                                         i=SSL_do_handshake(con);
965                                         printf("SSL_do_handshake -> %d\n",i);
966                                         i=0; /*13; */
967                                         continue;
968                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
969                                         }
970                                 if ((buf[0] == 'R') &&
971                                         ((buf[1] == '\n') || (buf[1] == '\r')))
972                                         {
973                                         SSL_set_verify(con,
974                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
975                                         SSL_renegotiate(con);
976                                         i=SSL_do_handshake(con);
977                                         printf("SSL_do_handshake -> %d\n",i);
978                                         i=0; /* 13; */
979                                         continue;
980                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
981                                         }
982                                 if (buf[0] == 'P')
983                                         {
984                                         static char *str="Lets print some clear text\n";
985                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
986                                         }
987                                 if (buf[0] == 'S')
988                                         {
989                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
990                                         }
991                                 }
992 #ifdef CHARSET_EBCDIC
993                         ebcdic2ascii(buf,buf,i);
994 #endif
995                         l=k=0;
996                         for (;;)
997                                 {
998                                 /* should do a select for the write */
999 #ifdef RENEG
1000 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
1001 #endif
1002                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
1003                                 switch (SSL_get_error(con,k))
1004                                         {
1005                                 case SSL_ERROR_NONE:
1006                                         break;
1007                                 case SSL_ERROR_WANT_WRITE:
1008                                 case SSL_ERROR_WANT_READ:
1009                                 case SSL_ERROR_WANT_X509_LOOKUP:
1010                                         BIO_printf(bio_s_out,"Write BLOCK\n");
1011                                         break;
1012                                 case SSL_ERROR_SYSCALL:
1013                                 case SSL_ERROR_SSL:
1014                                         BIO_printf(bio_s_out,"ERROR\n");
1015                                         ERR_print_errors(bio_err);
1016                                         ret=1;
1017                                         goto err;
1018                                         /* break; */
1019                                 case SSL_ERROR_ZERO_RETURN:
1020                                         BIO_printf(bio_s_out,"DONE\n");
1021                                         ret=1;
1022                                         goto err;
1023                                         }
1024                                 l+=k;
1025                                 i-=k;
1026                                 if (i <= 0) break;
1027                                 }
1028                         }
1029                 if (read_from_sslcon)
1030                         {
1031                         if (!SSL_is_init_finished(con))
1032                                 {
1033                                 i=init_ssl_connection(con);
1034                                 
1035                                 if (i < 0)
1036                                         {
1037                                         ret=0;
1038                                         goto err;
1039                                         }
1040                                 else if (i == 0)
1041                                         {
1042                                         ret=1;
1043                                         goto err;
1044                                         }
1045                                 }
1046                         else
1047                                 {
1048 again:  
1049                                 i=SSL_read(con,(char *)buf,bufsize);
1050                                 switch (SSL_get_error(con,i))
1051                                         {
1052                                 case SSL_ERROR_NONE:
1053 #ifdef CHARSET_EBCDIC
1054                                         ascii2ebcdic(buf,buf,i);
1055 #endif
1056                                         write(fileno(stdout),buf,
1057                                                 (unsigned int)i);
1058                                         if (SSL_pending(con)) goto again;
1059                                         break;
1060                                 case SSL_ERROR_WANT_WRITE:
1061                                 case SSL_ERROR_WANT_READ:
1062                                 case SSL_ERROR_WANT_X509_LOOKUP:
1063                                         BIO_printf(bio_s_out,"Read BLOCK\n");
1064                                         break;
1065                                 case SSL_ERROR_SYSCALL:
1066                                 case SSL_ERROR_SSL:
1067                                         BIO_printf(bio_s_out,"ERROR\n");
1068                                         ERR_print_errors(bio_err);
1069                                         ret=1;
1070                                         goto err;
1071                                 case SSL_ERROR_ZERO_RETURN:
1072                                         BIO_printf(bio_s_out,"DONE\n");
1073                                         ret=1;
1074                                         goto err;
1075                                         }
1076                                 }
1077                         }
1078                 }
1079 err:
1080         BIO_printf(bio_s_out,"shutting down SSL\n");
1081 #if 1
1082         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1083 #else
1084         SSL_shutdown(con);
1085 #endif
1086         if (con != NULL) SSL_free(con);
1087         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1088         if (buf != NULL)
1089                 {
1090                 memset(buf,0,bufsize);
1091                 OPENSSL_free(buf);
1092                 }
1093         if (ret >= 0)
1094                 BIO_printf(bio_s_out,"ACCEPT\n");
1095         return(ret);
1096         }
1097
1098 static void close_accept_socket(void)
1099         {
1100         BIO_printf(bio_err,"shutdown accept socket\n");
1101         if (accept_socket >= 0)
1102                 {
1103                 SHUTDOWN2(accept_socket);
1104                 }
1105         }
1106
1107 static int init_ssl_connection(SSL *con)
1108         {
1109         int i;
1110         const char *str;
1111         X509 *peer;
1112         long verify_error;
1113         MS_STATIC char buf[BUFSIZ];
1114
1115         if ((i=SSL_accept(con)) <= 0)
1116                 {
1117                 if (BIO_sock_should_retry(i))
1118                         {
1119                         BIO_printf(bio_s_out,"DELAY\n");
1120                         return(1);
1121                         }
1122
1123                 BIO_printf(bio_err,"ERROR\n");
1124                 verify_error=SSL_get_verify_result(con);
1125                 if (verify_error != X509_V_OK)
1126                         {
1127                         BIO_printf(bio_err,"verify error:%s\n",
1128                                 X509_verify_cert_error_string(verify_error));
1129                         }
1130                 else
1131                         ERR_print_errors(bio_err);
1132                 return(0);
1133                 }
1134
1135         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1136
1137         peer=SSL_get_peer_certificate(con);
1138         if (peer != NULL)
1139                 {
1140                 BIO_printf(bio_s_out,"Client certificate\n");
1141                 PEM_write_bio_X509(bio_s_out,peer);
1142                 X509_NAME_oneline(X509_get_subject_name(peer),buf,BUFSIZ);
1143                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1144                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,BUFSIZ);
1145                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1146                 X509_free(peer);
1147                 }
1148
1149         if (SSL_get_shared_ciphers(con,buf,BUFSIZ) != NULL)
1150                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1151         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1152         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1153         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1154         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1155                 TLS1_FLAGS_TLS_PADDING_BUG)
1156                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1157
1158         return(1);
1159         }
1160
1161 #ifndef OPENSSL_NO_DH
1162 static DH *load_dh_param(char *dhfile)
1163         {
1164         DH *ret=NULL;
1165         BIO *bio;
1166
1167         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
1168                 goto err;
1169         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1170 err:
1171         if (bio != NULL) BIO_free(bio);
1172         return(ret);
1173         }
1174 #endif
1175
1176 #if 0
1177 static int load_CA(SSL_CTX *ctx, char *file)
1178         {
1179         FILE *in;
1180         X509 *x=NULL;
1181
1182         if ((in=fopen(file,"r")) == NULL)
1183                 return(0);
1184
1185         for (;;)
1186                 {
1187                 if (PEM_read_X509(in,&x,NULL) == NULL)
1188                         break;
1189                 SSL_CTX_add_client_CA(ctx,x);
1190                 }
1191         if (x != NULL) X509_free(x);
1192         fclose(in);
1193         return(1);
1194         }
1195 #endif
1196
1197 static int www_body(char *hostname, int s, unsigned char *context)
1198         {
1199         char *buf=NULL;
1200         int ret=1;
1201         int i,j,k,blank,dot;
1202         struct stat st_buf;
1203         SSL *con;
1204         SSL_CIPHER *c;
1205         BIO *io,*ssl_bio,*sbio;
1206         long total_bytes;
1207
1208         buf=OPENSSL_malloc(bufsize);
1209         if (buf == NULL) return(0);
1210         io=BIO_new(BIO_f_buffer());
1211         ssl_bio=BIO_new(BIO_f_ssl());
1212         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1213
1214 #ifdef FIONBIO  
1215         if (s_nbio)
1216                 {
1217                 unsigned long sl=1;
1218
1219                 if (!s_quiet)
1220                         BIO_printf(bio_err,"turning on non blocking io\n");
1221                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1222                         ERR_print_errors(bio_err);
1223                 }
1224 #endif
1225
1226         /* lets make the output buffer a reasonable size */
1227         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1228
1229         if ((con=SSL_new(ctx)) == NULL) goto err;
1230         if(context) SSL_set_session_id_context(con, context,
1231                                                strlen((char *)context));
1232
1233         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1234         if (s_nbio_test)
1235                 {
1236                 BIO *test;
1237
1238                 test=BIO_new(BIO_f_nbio_test());
1239                 sbio=BIO_push(test,sbio);
1240                 }
1241         SSL_set_bio(con,sbio,sbio);
1242         SSL_set_accept_state(con);
1243
1244         /* SSL_set_fd(con,s); */
1245         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1246         BIO_push(io,ssl_bio);
1247 #ifdef CHARSET_EBCDIC
1248         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1249 #endif
1250
1251         if (s_debug)
1252                 {
1253                 con->debug=1;
1254                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1255                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1256                 }
1257
1258         blank=0;
1259         for (;;)
1260                 {
1261                 if (hack)
1262                         {
1263                         i=SSL_accept(con);
1264
1265                         switch (SSL_get_error(con,i))
1266                                 {
1267                         case SSL_ERROR_NONE:
1268                                 break;
1269                         case SSL_ERROR_WANT_WRITE:
1270                         case SSL_ERROR_WANT_READ:
1271                         case SSL_ERROR_WANT_X509_LOOKUP:
1272                                 continue;
1273                         case SSL_ERROR_SYSCALL:
1274                         case SSL_ERROR_SSL:
1275                         case SSL_ERROR_ZERO_RETURN:
1276                                 ret=1;
1277                                 goto err;
1278                                 /* break; */
1279                                 }
1280
1281                         SSL_renegotiate(con);
1282                         SSL_write(con,NULL,0);
1283                         }
1284
1285                 i=BIO_gets(io,buf,bufsize-1);
1286                 if (i < 0) /* error */
1287                         {
1288                         if (!BIO_should_retry(io))
1289                                 {
1290                                 if (!s_quiet)
1291                                         ERR_print_errors(bio_err);
1292                                 goto err;
1293                                 }
1294                         else
1295                                 {
1296                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1297 #ifndef OPENSSL_SYS_MSDOS
1298                                 sleep(1);
1299 #endif
1300                                 continue;
1301                                 }
1302                         }
1303                 else if (i == 0) /* end of input */
1304                         {
1305                         ret=1;
1306                         goto end;
1307                         }
1308
1309                 /* else we have data */
1310                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1311                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1312                         {
1313                         char *p;
1314                         X509 *peer;
1315                         STACK_OF(SSL_CIPHER) *sk;
1316                         static char *space="                          ";
1317
1318                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1319                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1320                         BIO_puts(io,"<pre>\n");
1321 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1322                         BIO_puts(io,"\n");
1323                         for (i=0; i<local_argc; i++)
1324                                 {
1325                                 BIO_puts(io,local_argv[i]);
1326                                 BIO_write(io," ",1);
1327                                 }
1328                         BIO_puts(io,"\n");
1329
1330                         /* The following is evil and should not really
1331                          * be done */
1332                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1333                         sk=SSL_get_ciphers(con);
1334                         j=sk_SSL_CIPHER_num(sk);
1335                         for (i=0; i<j; i++)
1336                                 {
1337                                 c=sk_SSL_CIPHER_value(sk,i);
1338                                 BIO_printf(io,"%-11s:%-25s",
1339                                         SSL_CIPHER_get_version(c),
1340                                         SSL_CIPHER_get_name(c));
1341                                 if ((((i+1)%2) == 0) && (i+1 != j))
1342                                         BIO_puts(io,"\n");
1343                                 }
1344                         BIO_puts(io,"\n");
1345                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1346                         if (p != NULL)
1347                                 {
1348                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1349                                 j=i=0;
1350                                 while (*p)
1351                                         {
1352                                         if (*p == ':')
1353                                                 {
1354                                                 BIO_write(io,space,26-j);
1355                                                 i++;
1356                                                 j=0;
1357                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1358                                                 }
1359                                         else
1360                                                 {
1361                                                 BIO_write(io,p,1);
1362                                                 j++;
1363                                                 }
1364                                         p++;
1365                                         }
1366                                 BIO_puts(io,"\n");
1367                                 }
1368                         BIO_printf(io,((con->hit)
1369                                 ?"---\nReused, "
1370                                 :"---\nNew, "));
1371                         c=SSL_get_current_cipher(con);
1372                         BIO_printf(io,"%s, Cipher is %s\n",
1373                                 SSL_CIPHER_get_version(c),
1374                                 SSL_CIPHER_get_name(c));
1375                         SSL_SESSION_print(io,SSL_get_session(con));
1376                         BIO_printf(io,"---\n");
1377                         print_stats(io,SSL_get_SSL_CTX(con));
1378                         BIO_printf(io,"---\n");
1379                         peer=SSL_get_peer_certificate(con);
1380                         if (peer != NULL)
1381                                 {
1382                                 BIO_printf(io,"Client certificate\n");
1383                                 X509_print(io,peer);
1384                                 PEM_write_bio_X509(io,peer);
1385                                 }
1386                         else
1387                                 BIO_puts(io,"no client certificate available\n");
1388                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1389                         break;
1390                         }
1391                 else if ((www == 2) && (strncmp("GET /",buf,5) == 0))
1392                         {
1393                         BIO *file;
1394                         char *p,*e;
1395                         static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1396
1397                         /* skip the '/' */
1398                         p= &(buf[5]);
1399                         dot=0;
1400                         for (e=p; *e != '\0'; e++)
1401                                 {
1402                                 if (e[0] == ' ') break;
1403                                 if (    (e[0] == '.') &&
1404                                         (strncmp(&(e[-1]),"/../",4) == 0))
1405                                         dot=1;
1406                                 }
1407                         
1408
1409                         if (*e == '\0')
1410                                 {
1411                                 BIO_puts(io,text);
1412                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1413                                 break;
1414                                 }
1415                         *e='\0';
1416
1417                         if (dot)
1418                                 {
1419                                 BIO_puts(io,text);
1420                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1421                                 break;
1422                                 }
1423
1424                         if (*p == '/')
1425                                 {
1426                                 BIO_puts(io,text);
1427                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1428                                 break;
1429                                 }
1430
1431                         /* append if a directory lookup */
1432                         if (e[-1] == '/')
1433                                 strcat(p,"index.html");
1434
1435                         /* if a directory, do the index thang */
1436                         if (stat(p,&st_buf) < 0)
1437                                 {
1438                                 BIO_puts(io,text);
1439                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1440                                 ERR_print_errors(io);
1441                                 break;
1442                                 }
1443                         if (S_ISDIR(st_buf.st_mode))
1444                                 {
1445                                 strcat(p,"/index.html");
1446                                 }
1447
1448                         if ((file=BIO_new_file(p,"r")) == NULL)
1449                                 {
1450                                 BIO_puts(io,text);
1451                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1452                                 ERR_print_errors(io);
1453                                 break;
1454                                 }
1455
1456                         if (!s_quiet)
1457                                 BIO_printf(bio_err,"FILE:%s\n",p);
1458
1459                         i=strlen(p);
1460                         if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1461                                 ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1462                                 ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1463                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1464                         else
1465                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1466                         /* send the file */
1467                         total_bytes=0;
1468                         for (;;)
1469                                 {
1470                                 i=BIO_read(file,buf,bufsize);
1471                                 if (i <= 0) break;
1472
1473 #ifdef RENEG
1474                                 total_bytes+=i;
1475                                 fprintf(stderr,"%d\n",i);
1476                                 if (total_bytes > 3*1024)
1477                                         {
1478                                         total_bytes=0;
1479                                         fprintf(stderr,"RENEGOTIATE\n");
1480                                         SSL_renegotiate(con);
1481                                         }
1482 #endif
1483
1484                                 for (j=0; j<i; )
1485                                         {
1486 #ifdef RENEG
1487 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1488 #endif
1489                                         k=BIO_write(io,&(buf[j]),i-j);
1490                                         if (k <= 0)
1491                                                 {
1492                                                 if (!BIO_should_retry(io))
1493                                                         goto write_error;
1494                                                 else
1495                                                         {
1496                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1497                                                         }
1498                                                 }
1499                                         else
1500                                                 {
1501                                                 j+=k;
1502                                                 }
1503                                         }
1504                                 }
1505 write_error:
1506                         BIO_free(file);
1507                         break;
1508                         }
1509                 }
1510
1511         for (;;)
1512                 {
1513                 i=(int)BIO_flush(io);
1514                 if (i <= 0)
1515                         {
1516                         if (!BIO_should_retry(io))
1517                                 break;
1518                         }
1519                 else
1520                         break;
1521                 }
1522 end:
1523 #if 1
1524         /* make sure we re-use sessions */
1525         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1526 #else
1527         /* This kills performance */
1528 /*      SSL_shutdown(con); A shutdown gets sent in the
1529  *      BIO_free_all(io) procession */
1530 #endif
1531
1532 err:
1533
1534         if (ret >= 0)
1535                 BIO_printf(bio_s_out,"ACCEPT\n");
1536
1537         if (buf != NULL) OPENSSL_free(buf);
1538         if (io != NULL) BIO_free_all(io);
1539 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1540         return(ret);
1541         }
1542
1543 #ifndef OPENSSL_NO_RSA
1544 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1545         {
1546         static RSA *rsa_tmp=NULL;
1547
1548         if (rsa_tmp == NULL)
1549                 {
1550                 if (!s_quiet)
1551                         {
1552                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1553                         (void)BIO_flush(bio_err);
1554                         }
1555                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1556                 if (!s_quiet)
1557                         {
1558                         BIO_printf(bio_err,"\n");
1559                         (void)BIO_flush(bio_err);
1560                         }
1561                 }
1562         return(rsa_tmp);
1563         }
1564 #endif