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