21c4cac90c34034080cca774a7b258fcd70772e6
[openssl.git] / apps / s_client.c
1 /* apps/s_client.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 <stdio.h>
60 #include <stdlib.h>
61 #include <string.h>
62 #define USE_SOCKETS
63 #ifdef NO_STDIO
64 #define APPS_WIN16
65 #endif
66 #include "apps.h"
67 #include "x509.h"
68 #include "ssl.h"
69 #include "err.h"
70 #include "pem.h"
71 #include "s_apps.h"
72
73 #undef PROG
74 #define PROG    s_client_main
75
76 /*#define SSL_HOST_NAME "www.netscape.com" */
77 /*#define SSL_HOST_NAME "193.118.187.102" */
78 #define SSL_HOST_NAME   "localhost"
79
80 /*#define TEST_CERT "client.pem" */ /* no default cert. */
81
82 #undef BUFSIZZ
83 #define BUFSIZZ 1024*8
84
85 extern int verify_depth;
86 extern int verify_error;
87
88 #ifdef FIONBIO
89 static int c_nbio=0;
90 #endif
91 static int c_Pause=0;
92 static int c_debug=0;
93 static int c_showcerts=0;
94
95 #ifndef NOPROTO
96 static void sc_usage(void);
97 static void print_stuff(BIO *berr,SSL *con,int full);
98 #else
99 static void sc_usage();
100 static void print_stuff();
101 #endif
102
103 static BIO *bio_c_out=NULL;
104 static int c_quiet=0;
105
106 static void sc_usage()
107         {
108         BIO_printf(bio_err,"usage: s_client args\n");
109         BIO_printf(bio_err,"\n");
110         BIO_printf(bio_err," -host host     - use -connect instead\n");
111         BIO_printf(bio_err," -port port     - use -connect instead\n");
112         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
113
114         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
115         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
116         BIO_printf(bio_err," -key arg      - Private key file to use, PEM format assumed, in cert file if\n");
117         BIO_printf(bio_err,"                 not specified but cert file is.\n");
118         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
119         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
120         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
121         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
122         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
123         BIO_printf(bio_err," -debug        - extra output\n");
124         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
125         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
126 #ifdef FIONBIO
127         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
128 #endif
129         BIO_printf(bio_err," -quiet        - no s_client output\n");
130         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
131         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
132         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
133         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
134         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
135         BIO_printf(bio_err," -cipher       - prefered cipher to use, use the 'openssl ciphers'\n");
136         BIO_printf(bio_err,"                 command to see what is available\n");
137
138         }
139
140 int MAIN(argc, argv)
141 int argc;
142 char **argv;
143         {
144         int off=0;
145         SSL *con=NULL,*con2=NULL;
146         int s,k,width,state=0;
147         char *cbuf=NULL,*sbuf=NULL;
148         int cbuf_len,cbuf_off;
149         int sbuf_len,sbuf_off;
150         fd_set readfds,writefds;
151         short port=PORT;
152         int full_log=1;
153         char *host=SSL_HOST_NAME;
154         char *cert_file=NULL,*key_file=NULL;
155         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
156         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
157         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
158         SSL_CTX *ctx=NULL;
159         int ret=1,in_init=1,i,nbio_test=0;
160         SSL_METHOD *meth=NULL;
161         BIO *sbio;
162         /*static struct timeval timeout={10,0};*/
163
164 #if !defined(NO_SSL2) && !defined(NO_SSL3)
165         meth=SSLv23_client_method();
166 #elif !defined(NO_SSL3)
167         meth=SSLv3_client_method();
168 #elif !defined(NO_SSL2)
169         meth=SSLv2_client_method();
170 #endif
171
172         apps_startup();
173         c_Pause=0;
174         c_quiet=0;
175         c_debug=0;
176         c_showcerts=0;
177
178         if (bio_err == NULL)
179                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
180
181         if (    ((cbuf=Malloc(BUFSIZZ)) == NULL) ||
182                 ((sbuf=Malloc(BUFSIZZ)) == NULL))
183                 {
184                 BIO_printf(bio_err,"out of memory\n");
185                 goto end;
186                 }
187
188         verify_depth=0;
189         verify_error=X509_V_OK;
190 #ifdef FIONBIO
191         c_nbio=0;
192 #endif
193
194         argc--;
195         argv++;
196         while (argc >= 1)
197                 {
198                 if      (strcmp(*argv,"-host") == 0)
199                         {
200                         if (--argc < 1) goto bad;
201                         host= *(++argv);
202                         }
203                 else if (strcmp(*argv,"-port") == 0)
204                         {
205                         if (--argc < 1) goto bad;
206                         port=atoi(*(++argv));
207                         if (port == 0) goto bad;
208                         }
209                 else if (strcmp(*argv,"-connect") == 0)
210                         {
211                         if (--argc < 1) goto bad;
212                         if (!extract_host_port(*(++argv),&host,NULL,&port))
213                                 goto bad;
214                         }
215                 else if (strcmp(*argv,"-verify") == 0)
216                         {
217                         verify=SSL_VERIFY_PEER;
218                         if (--argc < 1) goto bad;
219                         verify_depth=atoi(*(++argv));
220                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
221                         }
222                 else if (strcmp(*argv,"-cert") == 0)
223                         {
224                         if (--argc < 1) goto bad;
225                         cert_file= *(++argv);
226                         }
227                 else if (strcmp(*argv,"-quiet") == 0)
228                         c_quiet=1;
229                 else if (strcmp(*argv,"-pause") == 0)
230                         c_Pause=1;
231                 else if (strcmp(*argv,"-debug") == 0)
232                         c_debug=1;
233                 else if (strcmp(*argv,"-showcerts") == 0)
234                         c_showcerts=1;
235                 else if (strcmp(*argv,"-nbio_test") == 0)
236                         nbio_test=1;
237                 else if (strcmp(*argv,"-state") == 0)
238                         state=1;
239 #ifndef NO_SSL2
240                 else if (strcmp(*argv,"-ssl2") == 0)
241                         meth=SSLv2_client_method();
242 #endif
243 #ifndef NO_SSL3
244                 else if (strcmp(*argv,"-ssl3") == 0)
245                         meth=SSLv3_client_method();
246 #endif
247 #ifndef NO_TLS1
248                 else if (strcmp(*argv,"-tls1") == 0)
249                         meth=TLSv1_client_method();
250 #endif
251                 else if (strcmp(*argv,"-bugs") == 0)
252                         bugs=1;
253                 else if (strcmp(*argv,"-key") == 0)
254                         {
255                         if (--argc < 1) goto bad;
256                         key_file= *(++argv);
257                         }
258                 else if (strcmp(*argv,"-reconnect") == 0)
259                         {
260                         reconnect=5;
261                         }
262                 else if (strcmp(*argv,"-CApath") == 0)
263                         {
264                         if (--argc < 1) goto bad;
265                         CApath= *(++argv);
266                         }
267                 else if (strcmp(*argv,"-CAfile") == 0)
268                         {
269                         if (--argc < 1) goto bad;
270                         CAfile= *(++argv);
271                         }
272                 else if (strcmp(*argv,"-no_tls1") == 0)
273                         off|=SSL_OP_NO_TLSv1;
274                 else if (strcmp(*argv,"-no_ssl3") == 0)
275                         off|=SSL_OP_NO_SSLv3;
276                 else if (strcmp(*argv,"-no_ssl2") == 0)
277                         off|=SSL_OP_NO_SSLv2;
278                 else if (strcmp(*argv,"-cipher") == 0)
279                         {
280                         if (--argc < 1) goto bad;
281                         cipher= *(++argv);
282                         }
283 #ifdef FIONBIO
284                 else if (strcmp(*argv,"-nbio") == 0)
285                         { c_nbio=1; }
286 #endif
287                 else
288                         {
289                         BIO_printf(bio_err,"unknown option %s\n",*argv);
290                         badop=1;
291                         break;
292                         }
293                 argc--;
294                 argv++;
295                 }
296         if (badop)
297                 {
298 bad:
299                 sc_usage();
300                 goto end;
301                 }
302
303         if (bio_c_out == NULL)
304                 {
305                 if (c_quiet)
306                         {
307                         bio_c_out=BIO_new(BIO_s_null());
308                         }
309                 else
310                         {
311                         if (bio_c_out == NULL)
312                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
313                         }
314                 }
315
316         SSLeay_add_ssl_algorithms();
317         ctx=SSL_CTX_new(meth);
318         if (ctx == NULL)
319                 {
320                 ERR_print_errors(bio_err);
321                 goto end;
322                 }
323
324         if (bugs)
325                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
326         else
327                 SSL_CTX_set_options(ctx,off);
328
329         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
330         if (cipher != NULL)
331                 SSL_CTX_set_cipher_list(ctx,cipher);
332 #if 0
333         else
334                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
335 #endif
336
337         SSL_CTX_set_verify(ctx,verify,verify_callback);
338         if (!set_cert_stuff(ctx,cert_file,key_file))
339                 goto end;
340
341         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
342                 (!SSL_CTX_set_default_verify_paths(ctx)))
343                 {
344                 /* BIO_printf(bio_err,"error seting default verify locations\n"); */
345                 ERR_print_errors(bio_err);
346                 /* goto end; */
347                 }
348
349         SSL_load_error_strings();
350
351         con=(SSL *)SSL_new(ctx);
352 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
353
354 re_start:
355
356         if (init_client(&s,host,port) == 0)
357                 {
358                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
359                 SHUTDOWN(s);
360                 goto end;
361                 }
362         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
363
364 #ifdef FIONBIO
365         if (c_nbio)
366                 {
367                 unsigned long l=1;
368                 BIO_printf(bio_c_out,"turning on non blocking io\n");
369                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
370                         {
371                         ERR_print_errors(bio_err);
372                         goto end;
373                         }
374                 }
375 #endif                                              
376         if (c_Pause & 0x01) con->debug=1;
377         sbio=BIO_new_socket(s,BIO_NOCLOSE);
378
379         if (nbio_test)
380                 {
381                 BIO *test;
382
383                 test=BIO_new(BIO_f_nbio_test());
384                 sbio=BIO_push(test,sbio);
385                 }
386
387         if (c_debug)
388                 {
389                 con->debug=1;
390                 BIO_set_callback(sbio,bio_dump_cb);
391                 BIO_set_callback_arg(sbio,bio_c_out);
392                 }
393
394         SSL_set_bio(con,sbio,sbio);
395         SSL_set_connect_state(con);
396
397         /* ok, lets connect */
398         width=SSL_get_fd(con)+1;
399
400         read_tty=1;
401         write_tty=0;
402         tty_on=0;
403         read_ssl=1;
404         write_ssl=1;
405         
406         cbuf_len=0;
407         cbuf_off=0;
408         sbuf_len=0;
409         sbuf_off=0;
410
411         for (;;)
412                 {
413                 FD_ZERO(&readfds);
414                 FD_ZERO(&writefds);
415
416                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
417                         {
418                         in_init=1;
419                         tty_on=0;
420                         }
421                 else
422                         {
423                         tty_on=1;
424                         if (in_init)
425                                 {
426                                 in_init=0;
427                                 print_stuff(bio_c_out,con,full_log);
428                                 if (full_log > 0) full_log--;
429
430                                 if (reconnect)
431                                         {
432                                         reconnect--;
433                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
434                                         SSL_shutdown(con);
435                                         SSL_set_connect_state(con);
436                                         SHUTDOWN(SSL_get_fd(con));
437                                         goto re_start;
438                                         }
439                                 }
440                         }
441
442                 ssl_pending = read_ssl && SSL_pending(con);
443
444                 if (!ssl_pending)
445                         {
446 #ifndef WINDOWS
447                         if (tty_on)
448                                 {
449                                 if (read_tty)  FD_SET(fileno(stdin),&readfds);
450                                 if (write_tty) FD_SET(fileno(stdout),&writefds);
451                                 }
452 #endif
453                         if (read_ssl)
454                                 FD_SET(SSL_get_fd(con),&readfds);
455                         if (write_ssl)
456                                 FD_SET(SSL_get_fd(con),&writefds);
457
458 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
459                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
460
461                         i=select(width,&readfds,&writefds,NULL,NULL);
462                         if ( i < 0)
463                                 {
464                                 BIO_printf(bio_err,"bad select %d\n",
465                                 get_last_socket_error());
466                                 goto shut;
467                                 /* goto end; */
468                                 }
469                         }
470
471                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
472                         {
473                         k=SSL_write(con,&(cbuf[cbuf_off]),
474                                 (unsigned int)cbuf_len);
475                         switch (SSL_get_error(con,k))
476                                 {
477                         case SSL_ERROR_NONE:
478                                 cbuf_off+=k;
479                                 cbuf_len-=k;
480                                 if (k <= 0) goto end;
481                                 /* we have done a  write(con,NULL,0); */
482                                 if (cbuf_len <= 0)
483                                         {
484                                         read_tty=1;
485                                         write_ssl=0;
486                                         }
487                                 else /* if (cbuf_len > 0) */
488                                         {
489                                         read_tty=0;
490                                         write_ssl=1;
491                                         }
492                                 break;
493                         case SSL_ERROR_WANT_WRITE:
494                                 BIO_printf(bio_c_out,"write W BLOCK\n");
495                                 write_ssl=1;
496                                 read_tty=0;
497                                 break;
498                         case SSL_ERROR_WANT_READ:
499                                 BIO_printf(bio_c_out,"write R BLOCK\n");
500                                 write_tty=0;
501                                 read_ssl=1;
502                                 write_ssl=0;
503                                 break;
504                         case SSL_ERROR_WANT_X509_LOOKUP:
505                                 BIO_printf(bio_c_out,"write X BLOCK\n");
506                                 break;
507                         case SSL_ERROR_ZERO_RETURN:
508                                 if (cbuf_len != 0)
509                                         {
510                                         BIO_printf(bio_c_out,"shutdown\n");
511                                         goto shut;
512                                         }
513                                 else
514                                         {
515                                         read_tty=1;
516                                         write_ssl=0;
517                                         break;
518                                         }
519                                 
520                         case SSL_ERROR_SYSCALL:
521                                 if ((k != 0) || (cbuf_len != 0))
522                                         {
523                                         BIO_printf(bio_err,"write:errno=%d\n",
524                                                 get_last_socket_error());
525                                         goto shut;
526                                         }
527                                 else
528                                         {
529                                         read_tty=1;
530                                         write_ssl=0;
531                                         }
532                                 break;
533                         case SSL_ERROR_SSL:
534                                 ERR_print_errors(bio_err);
535                                 goto shut;
536                                 }
537                         }
538 #ifndef WINDOWS
539                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
540                         {
541                         i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
542
543                         if (i <= 0)
544                                 {
545                                 BIO_printf(bio_c_out,"DONE\n");
546                                 goto shut;
547                                 /* goto end; */
548                                 }
549
550                         sbuf_len-=i;;
551                         sbuf_off+=i;
552                         if (sbuf_len <= 0)
553                                 {
554                                 read_ssl=1;
555                                 write_tty=0;
556                                 }
557                         }
558 #endif
559                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
560                         {
561 #ifdef RENEG
562 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
563 #endif
564 #if 1
565                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
566 #else
567 /* Demo for pending and peek :-) */
568                         k=SSL_read(con,sbuf,16);
569 { char zbuf[10240]; 
570 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
571 }
572 #endif
573
574                         switch (SSL_get_error(con,k))
575                                 {
576                         case SSL_ERROR_NONE:
577                                 if (k <= 0)
578                                         goto end;
579                                 sbuf_off=0;
580                                 sbuf_len=k;
581
582                                 read_ssl=0;
583                                 write_tty=1;
584                                 break;
585                         case SSL_ERROR_WANT_WRITE:
586                                 BIO_printf(bio_c_out,"read W BLOCK\n");
587                                 write_ssl=1;
588                                 read_tty=0;
589                                 break;
590                         case SSL_ERROR_WANT_READ:
591                                 BIO_printf(bio_c_out,"read R BLOCK\n");
592                                 write_tty=0;
593                                 read_ssl=1;
594                                 if ((read_tty == 0) && (write_ssl == 0))
595                                         write_ssl=1;
596                                 break;
597                         case SSL_ERROR_WANT_X509_LOOKUP:
598                                 BIO_printf(bio_c_out,"read X BLOCK\n");
599                                 break;
600                         case SSL_ERROR_SYSCALL:
601                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
602                                 goto shut;
603                         case SSL_ERROR_ZERO_RETURN:
604                                 BIO_printf(bio_c_out,"closed\n");
605                                 goto shut;
606                         case SSL_ERROR_SSL:
607                                 ERR_print_errors(bio_err);
608                                 goto shut;
609                                 /* break; */
610                                 }
611                         }
612
613 #ifndef WINDOWS
614                 else if (FD_ISSET(fileno(stdin),&readfds))
615                         {
616                         i=read(fileno(stdin),cbuf,BUFSIZZ);
617
618                         if ((!c_quiet) && ((i <= 0) || (cbuf[0] == 'Q')))
619                                 {
620                                 BIO_printf(bio_err,"DONE\n");
621                                 goto shut;
622                                 }
623
624                         if ((!c_quiet) && (cbuf[0] == 'R'))
625                                 {
626                                 BIO_printf(bio_err,"RENEGOTIATING\n");
627                                 SSL_renegotiate(con);
628                                 cbuf_len=0;
629                                 }
630                         else
631                                 {
632                                 cbuf_len=i;
633                                 cbuf_off=0;
634                                 }
635
636                         write_ssl=1;
637                         read_tty=0;
638                         }
639 #endif
640                 }
641 shut:
642         SSL_shutdown(con);
643         SHUTDOWN(SSL_get_fd(con));
644         ret=0;
645 end:
646         if (con != NULL) SSL_free(con);
647         if (con2 != NULL) SSL_free(con2);
648         if (ctx != NULL) SSL_CTX_free(ctx);
649         if (cbuf != NULL) { memset(cbuf,0,BUFSIZZ); Free(cbuf); }
650         if (sbuf != NULL) { memset(sbuf,0,BUFSIZZ); Free(sbuf); }
651         if (bio_c_out != NULL)
652                 {
653                 BIO_free(bio_c_out);
654                 bio_c_out=NULL;
655                 }
656         EXIT(ret);
657         }
658
659
660 static void print_stuff(bio,s,full)
661 BIO *bio;
662 SSL *s;
663 int full;
664         {
665         X509 *peer=NULL;
666         char *p;
667         static char *space="                ";
668         char buf[BUFSIZ];
669         STACK_OF(X509) *sk;
670         STACK_OF(X509_NAME) *sk2;
671         SSL_CIPHER *c;
672         X509_NAME *xn;
673         int j,i;
674
675         if (full)
676                 {
677                 sk=SSL_get_peer_cert_chain(s);
678                 if (sk != NULL)
679                         {
680                         BIO_printf(bio,"---\nCertificate chain\n");
681                         for (i=0; i<sk_X509_num(sk); i++)
682                                 {
683                                 X509_NAME_oneline(X509_get_subject_name(
684                                         sk_X509_value(sk,i)),buf,BUFSIZ);
685                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
686                                 X509_NAME_oneline(X509_get_issuer_name(
687                                         sk_X509_value(sk,i)),buf,BUFSIZ);
688                                 BIO_printf(bio,"   i:%s\n",buf);
689                                 if (c_showcerts)
690                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
691                                 }
692                         }
693
694                 BIO_printf(bio,"---\n");
695                 peer=SSL_get_peer_certificate(s);
696                 if (peer != NULL)
697                         {
698                         BIO_printf(bio,"Server certificate\n");
699                         if (!c_showcerts) /* Redundant if we showed the whole chain */
700                                 PEM_write_bio_X509(bio,peer);
701                         X509_NAME_oneline(X509_get_subject_name(peer),
702                                 buf,BUFSIZ);
703                         BIO_printf(bio,"subject=%s\n",buf);
704                         X509_NAME_oneline(X509_get_issuer_name(peer),
705                                 buf,BUFSIZ);
706                         BIO_printf(bio,"issuer=%s\n",buf);
707                         }
708                 else
709                         BIO_printf(bio,"no peer certificate available\n");
710
711                 sk2=SSL_get_client_CA_list(s);
712                 if ((sk != NULL) && (sk_X509_NAME_num(sk2) > 0))
713                         {
714                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
715                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
716                                 {
717                                 xn=sk_X509_NAME_value(sk2,i);
718                                 X509_NAME_oneline(xn,buf,sizeof(buf));
719                                 BIO_write(bio,buf,strlen(buf));
720                                 BIO_write(bio,"\n",1);
721                                 }
722                         }
723                 else
724                         {
725                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
726                         }
727                 p=SSL_get_shared_ciphers(s,buf,BUFSIZ);
728                 if (p != NULL)
729                         {
730                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
731                         j=i=0;
732                         while (*p)
733                                 {
734                                 if (*p == ':')
735                                         {
736                                         BIO_write(bio,space,15-j%25);
737                                         i++;
738                                         j=0;
739                                         BIO_write(bio,((i%3)?" ":"\n"),1);
740                                         }
741                                 else
742                                         {
743                                         BIO_write(bio,p,1);
744                                         j++;
745                                         }
746                                 p++;
747                                 }
748                         BIO_write(bio,"\n",1);
749                         }
750
751                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
752                         BIO_number_read(SSL_get_rbio(s)),
753                         BIO_number_written(SSL_get_wbio(s)));
754                 }
755         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
756         c=SSL_get_current_cipher(s);
757         BIO_printf(bio,"%s, Cipher is %s\n",
758                 SSL_CIPHER_get_version(c),
759                 SSL_CIPHER_get_name(c));
760         if (peer != NULL) {
761                 EVP_PKEY *pktmp;
762                 pktmp = X509_get_pubkey(peer);
763                 BIO_printf(bio,"Server public key is %d bit\n",
764                                                          EVP_PKEY_bits(pktmp));
765                 EVP_PKEY_free(pktmp);
766         }
767         SSL_SESSION_print(bio,SSL_get_session(s));
768         BIO_printf(bio,"---\n");
769         if (peer != NULL)
770                 X509_free(peer);
771         }
772