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d02b48c6 1/* apps/s_client.c */
58964a49 2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6
RE
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
1b1a6e78 59#include <assert.h>
8c197cc5
UM
60#include <stdio.h>
61#include <stdlib.h>
62#include <string.h>
63#ifdef NO_STDIO
64#define APPS_WIN16
65#endif
66
7d7d2cbc
UM
67/* With IPv6, it looks like Digital has mixed up the proper order of
68 recursive header file inclusion, resulting in the compiler complaining
69 that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
70 is needed to have fileno() declared correctly... So let's define u_int */
1e44804e 71#if defined(VMS) && defined(__DECC) && !defined(__U_INT)
7d7d2cbc
UM
72#define __U_INT
73typedef unsigned int u_int;
74#endif
75
d02b48c6 76#define USE_SOCKETS
d02b48c6 77#include "apps.h"
ec577822
BM
78#include <openssl/x509.h>
79#include <openssl/ssl.h>
80#include <openssl/err.h>
81#include <openssl/pem.h>
d02b48c6
RE
82#include "s_apps.h"
83
06f4536a
DSH
84#ifdef WINDOWS
85#include <conio.h>
86#endif
87
88
75e0770d
UM
89#if (defined(VMS) && __VMS_VER < 70000000)
90/* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
7d7d2cbc
UM
91#undef FIONBIO
92#endif
93
d02b48c6
RE
94#undef PROG
95#define PROG s_client_main
96
97/*#define SSL_HOST_NAME "www.netscape.com" */
98/*#define SSL_HOST_NAME "193.118.187.102" */
99#define SSL_HOST_NAME "localhost"
100
101/*#define TEST_CERT "client.pem" */ /* no default cert. */
102
103#undef BUFSIZZ
104#define BUFSIZZ 1024*8
105
106extern int verify_depth;
107extern int verify_error;
108
109#ifdef FIONBIO
110static int c_nbio=0;
111#endif
112static int c_Pause=0;
113static int c_debug=0;
6d02d8e4 114static int c_showcerts=0;
d02b48c6 115
d02b48c6
RE
116static void sc_usage(void);
117static void print_stuff(BIO *berr,SSL *con,int full);
d02b48c6
RE
118static BIO *bio_c_out=NULL;
119static int c_quiet=0;
120
6b691a5c 121static void sc_usage(void)
d02b48c6 122 {
b6cff93d 123 BIO_printf(bio_err,"usage: s_client args\n");
d02b48c6
RE
124 BIO_printf(bio_err,"\n");
125 BIO_printf(bio_err," -host host - use -connect instead\n");
126 BIO_printf(bio_err," -port port - use -connect instead\n");
127 BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
128
129 BIO_printf(bio_err," -verify arg - turn on peer certificate verification\n");
130 BIO_printf(bio_err," -cert arg - certificate file to use, PEM format assumed\n");
131 BIO_printf(bio_err," -key arg - Private key file to use, PEM format assumed, in cert file if\n");
132 BIO_printf(bio_err," not specified but cert file is.\n");
133 BIO_printf(bio_err," -CApath arg - PEM format directory of CA's\n");
134 BIO_printf(bio_err," -CAfile arg - PEM format file of CA's\n");
135 BIO_printf(bio_err," -reconnect - Drop and re-make the connection with the same Session-ID\n");
136 BIO_printf(bio_err," -pause - sleep(1) after each read(2) and write(2) system call\n");
6d02d8e4 137 BIO_printf(bio_err," -showcerts - show all certificates in the chain\n");
d02b48c6
RE
138 BIO_printf(bio_err," -debug - extra output\n");
139 BIO_printf(bio_err," -nbio_test - more ssl protocol testing\n");
140 BIO_printf(bio_err," -state - print the 'ssl' states\n");
141#ifdef FIONBIO
142 BIO_printf(bio_err," -nbio - Run with non-blocking IO\n");
1bdb8633 143#endif
1bdb8633 144 BIO_printf(bio_err," -crlf - convert LF from terminal into CRLF\n");
d02b48c6
RE
145 BIO_printf(bio_err," -quiet - no s_client output\n");
146 BIO_printf(bio_err," -ssl2 - just use SSLv2\n");
147 BIO_printf(bio_err," -ssl3 - just use SSLv3\n");
58964a49
RE
148 BIO_printf(bio_err," -tls1 - just use TLSv1\n");
149 BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
d02b48c6 150 BIO_printf(bio_err," -bugs - Switch on all SSL implementation bug workarounds\n");
e170a5c0 151 BIO_printf(bio_err," -cipher - prefered cipher to use, use the 'openssl ciphers'\n");
dfeab068 152 BIO_printf(bio_err," command to see what is available\n");
d02b48c6
RE
153
154 }
155
6b691a5c 156int MAIN(int argc, char **argv)
d02b48c6 157 {
58964a49 158 int off=0;
d02b48c6
RE
159 SSL *con=NULL,*con2=NULL;
160 int s,k,width,state=0;
161 char *cbuf=NULL,*sbuf=NULL;
162 int cbuf_len,cbuf_off;
163 int sbuf_len,sbuf_off;
164 fd_set readfds,writefds;
165 short port=PORT;
166 int full_log=1;
167 char *host=SSL_HOST_NAME;
168 char *cert_file=NULL,*key_file=NULL;
169 char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
170 int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
1bdb8633 171 int crlf=0;
c7ac31e2 172 int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
d02b48c6
RE
173 SSL_CTX *ctx=NULL;
174 int ret=1,in_init=1,i,nbio_test=0;
c3ed3b6e 175 int prexit = 0;
d02b48c6
RE
176 SSL_METHOD *meth=NULL;
177 BIO *sbio;
06f4536a
DSH
178#ifdef WINDOWS
179 struct timeval tv;
180#endif
d02b48c6
RE
181
182#if !defined(NO_SSL2) && !defined(NO_SSL3)
183 meth=SSLv23_client_method();
184#elif !defined(NO_SSL3)
185 meth=SSLv3_client_method();
186#elif !defined(NO_SSL2)
187 meth=SSLv2_client_method();
188#endif
189
190 apps_startup();
58964a49 191 c_Pause=0;
d02b48c6
RE
192 c_quiet=0;
193 c_debug=0;
6d02d8e4 194 c_showcerts=0;
d02b48c6
RE
195
196 if (bio_err == NULL)
197 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
198
199 if ( ((cbuf=Malloc(BUFSIZZ)) == NULL) ||
200 ((sbuf=Malloc(BUFSIZZ)) == NULL))
201 {
202 BIO_printf(bio_err,"out of memory\n");
203 goto end;
204 }
205
206 verify_depth=0;
207 verify_error=X509_V_OK;
208#ifdef FIONBIO
209 c_nbio=0;
210#endif
211
212 argc--;
213 argv++;
214 while (argc >= 1)
215 {
216 if (strcmp(*argv,"-host") == 0)
217 {
218 if (--argc < 1) goto bad;
219 host= *(++argv);
220 }
221 else if (strcmp(*argv,"-port") == 0)
222 {
223 if (--argc < 1) goto bad;
224 port=atoi(*(++argv));
225 if (port == 0) goto bad;
226 }
227 else if (strcmp(*argv,"-connect") == 0)
228 {
229 if (--argc < 1) goto bad;
230 if (!extract_host_port(*(++argv),&host,NULL,&port))
231 goto bad;
232 }
233 else if (strcmp(*argv,"-verify") == 0)
234 {
235 verify=SSL_VERIFY_PEER;
236 if (--argc < 1) goto bad;
237 verify_depth=atoi(*(++argv));
238 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
239 }
240 else if (strcmp(*argv,"-cert") == 0)
241 {
242 if (--argc < 1) goto bad;
243 cert_file= *(++argv);
244 }
c3ed3b6e
DSH
245 else if (strcmp(*argv,"-prexit") == 0)
246 prexit=1;
1bdb8633
BM
247 else if (strcmp(*argv,"-crlf") == 0)
248 crlf=1;
d02b48c6
RE
249 else if (strcmp(*argv,"-quiet") == 0)
250 c_quiet=1;
251 else if (strcmp(*argv,"-pause") == 0)
252 c_Pause=1;
253 else if (strcmp(*argv,"-debug") == 0)
254 c_debug=1;
6d02d8e4
BM
255 else if (strcmp(*argv,"-showcerts") == 0)
256 c_showcerts=1;
d02b48c6
RE
257 else if (strcmp(*argv,"-nbio_test") == 0)
258 nbio_test=1;
259 else if (strcmp(*argv,"-state") == 0)
260 state=1;
261#ifndef NO_SSL2
262 else if (strcmp(*argv,"-ssl2") == 0)
263 meth=SSLv2_client_method();
264#endif
265#ifndef NO_SSL3
266 else if (strcmp(*argv,"-ssl3") == 0)
267 meth=SSLv3_client_method();
58964a49
RE
268#endif
269#ifndef NO_TLS1
270 else if (strcmp(*argv,"-tls1") == 0)
271 meth=TLSv1_client_method();
d02b48c6
RE
272#endif
273 else if (strcmp(*argv,"-bugs") == 0)
274 bugs=1;
275 else if (strcmp(*argv,"-key") == 0)
276 {
277 if (--argc < 1) goto bad;
278 key_file= *(++argv);
279 }
280 else if (strcmp(*argv,"-reconnect") == 0)
281 {
282 reconnect=5;
283 }
284 else if (strcmp(*argv,"-CApath") == 0)
285 {
286 if (--argc < 1) goto bad;
287 CApath= *(++argv);
288 }
289 else if (strcmp(*argv,"-CAfile") == 0)
290 {
291 if (--argc < 1) goto bad;
292 CAfile= *(++argv);
293 }
58964a49
RE
294 else if (strcmp(*argv,"-no_tls1") == 0)
295 off|=SSL_OP_NO_TLSv1;
296 else if (strcmp(*argv,"-no_ssl3") == 0)
297 off|=SSL_OP_NO_SSLv3;
298 else if (strcmp(*argv,"-no_ssl2") == 0)
299 off|=SSL_OP_NO_SSLv2;
d02b48c6
RE
300 else if (strcmp(*argv,"-cipher") == 0)
301 {
302 if (--argc < 1) goto bad;
303 cipher= *(++argv);
304 }
305#ifdef FIONBIO
306 else if (strcmp(*argv,"-nbio") == 0)
307 { c_nbio=1; }
308#endif
309 else
310 {
311 BIO_printf(bio_err,"unknown option %s\n",*argv);
312 badop=1;
313 break;
314 }
315 argc--;
316 argv++;
317 }
318 if (badop)
319 {
320bad:
321 sc_usage();
322 goto end;
323 }
324
a31011e8
BM
325 app_RAND_load_file(NULL, bio_err, 0);
326
d02b48c6
RE
327 if (bio_c_out == NULL)
328 {
329 if (c_quiet)
330 {
331 bio_c_out=BIO_new(BIO_s_null());
332 }
333 else
334 {
335 if (bio_c_out == NULL)
336 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
337 }
338 }
339
340 SSLeay_add_ssl_algorithms();
fabce041 341 SSL_load_error_strings();
d02b48c6
RE
342 ctx=SSL_CTX_new(meth);
343 if (ctx == NULL)
344 {
345 ERR_print_errors(bio_err);
346 goto end;
347 }
348
58964a49
RE
349 if (bugs)
350 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
351 else
352 SSL_CTX_set_options(ctx,off);
d02b48c6
RE
353
354 if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
355 if (cipher != NULL)
fabce041
DSH
356 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
357 BIO_printf(bio_err,"error seting cipher list\n");
358 ERR_print_errors(bio_err);
359 goto end;
360 }
d02b48c6
RE
361#if 0
362 else
363 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
364#endif
365
366 SSL_CTX_set_verify(ctx,verify,verify_callback);
367 if (!set_cert_stuff(ctx,cert_file,key_file))
368 goto end;
369
370 if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
371 (!SSL_CTX_set_default_verify_paths(ctx)))
372 {
58964a49 373 /* BIO_printf(bio_err,"error seting default verify locations\n"); */
d02b48c6 374 ERR_print_errors(bio_err);
58964a49 375 /* goto end; */
d02b48c6
RE
376 }
377
d02b48c6
RE
378
379 con=(SSL *)SSL_new(ctx);
58964a49 380/* SSL_set_cipher_list(con,"RC4-MD5"); */
d02b48c6
RE
381
382re_start:
383
384 if (init_client(&s,host,port) == 0)
385 {
58964a49 386 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
d02b48c6
RE
387 SHUTDOWN(s);
388 goto end;
389 }
390 BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
391
392#ifdef FIONBIO
393 if (c_nbio)
394 {
395 unsigned long l=1;
396 BIO_printf(bio_c_out,"turning on non blocking io\n");
58964a49
RE
397 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
398 {
399 ERR_print_errors(bio_err);
400 goto end;
401 }
d02b48c6
RE
402 }
403#endif
404 if (c_Pause & 0x01) con->debug=1;
405 sbio=BIO_new_socket(s,BIO_NOCLOSE);
406
407 if (nbio_test)
408 {
409 BIO *test;
410
411 test=BIO_new(BIO_f_nbio_test());
412 sbio=BIO_push(test,sbio);
413 }
414
415 if (c_debug)
416 {
417 con->debug=1;
418 BIO_set_callback(sbio,bio_dump_cb);
419 BIO_set_callback_arg(sbio,bio_c_out);
420 }
421
422 SSL_set_bio(con,sbio,sbio);
423 SSL_set_connect_state(con);
424
425 /* ok, lets connect */
426 width=SSL_get_fd(con)+1;
427
428 read_tty=1;
429 write_tty=0;
430 tty_on=0;
431 read_ssl=1;
432 write_ssl=1;
433
434 cbuf_len=0;
435 cbuf_off=0;
436 sbuf_len=0;
437 sbuf_off=0;
438
439 for (;;)
440 {
441 FD_ZERO(&readfds);
442 FD_ZERO(&writefds);
443
58964a49 444 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
d02b48c6
RE
445 {
446 in_init=1;
447 tty_on=0;
448 }
449 else
450 {
451 tty_on=1;
452 if (in_init)
453 {
454 in_init=0;
455 print_stuff(bio_c_out,con,full_log);
456 if (full_log > 0) full_log--;
457
458 if (reconnect)
459 {
460 reconnect--;
461 BIO_printf(bio_c_out,"drop connection and then reconnect\n");
462 SSL_shutdown(con);
463 SSL_set_connect_state(con);
464 SHUTDOWN(SSL_get_fd(con));
465 goto re_start;
466 }
467 }
468 }
469
c7ac31e2
BM
470 ssl_pending = read_ssl && SSL_pending(con);
471
472 if (!ssl_pending)
d02b48c6 473 {
f0f1b4e4 474#ifndef WINDOWS
c7ac31e2
BM
475 if (tty_on)
476 {
477 if (read_tty) FD_SET(fileno(stdin),&readfds);
478 if (write_tty) FD_SET(fileno(stdout),&writefds);
479 }
c7ac31e2
BM
480 if (read_ssl)
481 FD_SET(SSL_get_fd(con),&readfds);
482 if (write_ssl)
483 FD_SET(SSL_get_fd(con),&writefds);
06f4536a
DSH
484#else
485 if(!tty_on || !write_tty) {
486 if (read_ssl)
487 FD_SET(SSL_get_fd(con),&readfds);
488 if (write_ssl)
489 FD_SET(SSL_get_fd(con),&writefds);
490 }
491#endif
c7ac31e2
BM
492/* printf("mode tty(%d %d%d) ssl(%d%d)\n",
493 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
d02b48c6 494
75e0770d 495 /* Note: under VMS with SOCKETSHR the second parameter
7d7d2cbc
UM
496 * is currently of type (int *) whereas under other
497 * systems it is (void *) if you don't have a cast it
498 * will choke the compiler: if you do have a cast then
499 * you can either go for (int *) or (void *).
500 */
06f4536a
DSH
501#ifdef WINDOWS
502 /* Under Windows we make the assumption that we can
503 * always write to the tty: therefore if we need to
504 * write to the tty we just fall through. Otherwise
505 * we timeout the select every second and see if there
506 * are any keypresses. Note: this is a hack, in a proper
507 * Windows application we wouldn't do this.
508 */
509 if(!write_tty) {
510 if(read_tty) {
511 tv.tv_sec = 1;
512 tv.tv_usec = 0;
513 i=select(width,(void *)&readfds,(void *)&writefds,
514 NULL,&tv);
515 if(!i && (!_kbhit() || !read_tty) ) continue;
516 } else i=select(width,(void *)&readfds,(void *)&writefds,
517 NULL,NULL);
518 }
519#else
7d7d2cbc
UM
520 i=select(width,(void *)&readfds,(void *)&writefds,
521 NULL,NULL);
06f4536a 522#endif
c7ac31e2
BM
523 if ( i < 0)
524 {
525 BIO_printf(bio_err,"bad select %d\n",
58964a49 526 get_last_socket_error());
c7ac31e2
BM
527 goto shut;
528 /* goto end; */
529 }
d02b48c6
RE
530 }
531
c7ac31e2 532 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
d02b48c6
RE
533 {
534 k=SSL_write(con,&(cbuf[cbuf_off]),
535 (unsigned int)cbuf_len);
536 switch (SSL_get_error(con,k))
537 {
538 case SSL_ERROR_NONE:
539 cbuf_off+=k;
540 cbuf_len-=k;
541 if (k <= 0) goto end;
542 /* we have done a write(con,NULL,0); */
543 if (cbuf_len <= 0)
544 {
545 read_tty=1;
546 write_ssl=0;
547 }
548 else /* if (cbuf_len > 0) */
549 {
550 read_tty=0;
551 write_ssl=1;
552 }
553 break;
554 case SSL_ERROR_WANT_WRITE:
555 BIO_printf(bio_c_out,"write W BLOCK\n");
556 write_ssl=1;
557 read_tty=0;
558 break;
559 case SSL_ERROR_WANT_READ:
560 BIO_printf(bio_c_out,"write R BLOCK\n");
561 write_tty=0;
562 read_ssl=1;
563 write_ssl=0;
564 break;
565 case SSL_ERROR_WANT_X509_LOOKUP:
566 BIO_printf(bio_c_out,"write X BLOCK\n");
567 break;
568 case SSL_ERROR_ZERO_RETURN:
569 if (cbuf_len != 0)
570 {
571 BIO_printf(bio_c_out,"shutdown\n");
572 goto shut;
573 }
574 else
575 {
576 read_tty=1;
577 write_ssl=0;
578 break;
579 }
580
581 case SSL_ERROR_SYSCALL:
582 if ((k != 0) || (cbuf_len != 0))
583 {
584 BIO_printf(bio_err,"write:errno=%d\n",
58964a49 585 get_last_socket_error());
d02b48c6
RE
586 goto shut;
587 }
588 else
589 {
590 read_tty=1;
591 write_ssl=0;
592 }
593 break;
594 case SSL_ERROR_SSL:
595 ERR_print_errors(bio_err);
596 goto shut;
597 }
598 }
06f4536a
DSH
599#ifdef WINDOWS
600 /* Assume Windows can always write */
601 else if (!ssl_pending && write_tty)
602#else
c7ac31e2 603 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
06f4536a 604#endif
d02b48c6 605 {
a53955d8
UM
606#ifdef CHARSET_EBCDIC
607 ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
608#endif
d02b48c6
RE
609 i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
610
611 if (i <= 0)
612 {
613 BIO_printf(bio_c_out,"DONE\n");
614 goto shut;
615 /* goto end; */
616 }
617
618 sbuf_len-=i;;
619 sbuf_off+=i;
620 if (sbuf_len <= 0)
621 {
622 read_ssl=1;
623 write_tty=0;
624 }
625 }
c7ac31e2 626 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
d02b48c6 627 {
58964a49
RE
628#ifdef RENEG
629{ static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
630#endif
dfeab068 631#if 1
58964a49 632 k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
dfeab068
RE
633#else
634/* Demo for pending and peek :-) */
635 k=SSL_read(con,sbuf,16);
636{ char zbuf[10240];
637printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
638}
639#endif
d02b48c6
RE
640
641 switch (SSL_get_error(con,k))
642 {
643 case SSL_ERROR_NONE:
644 if (k <= 0)
645 goto end;
646 sbuf_off=0;
647 sbuf_len=k;
648
649 read_ssl=0;
650 write_tty=1;
651 break;
652 case SSL_ERROR_WANT_WRITE:
653 BIO_printf(bio_c_out,"read W BLOCK\n");
654 write_ssl=1;
655 read_tty=0;
656 break;
657 case SSL_ERROR_WANT_READ:
658 BIO_printf(bio_c_out,"read R BLOCK\n");
659 write_tty=0;
660 read_ssl=1;
661 if ((read_tty == 0) && (write_ssl == 0))
662 write_ssl=1;
663 break;
664 case SSL_ERROR_WANT_X509_LOOKUP:
665 BIO_printf(bio_c_out,"read X BLOCK\n");
666 break;
667 case SSL_ERROR_SYSCALL:
58964a49 668 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
d02b48c6
RE
669 goto shut;
670 case SSL_ERROR_ZERO_RETURN:
671 BIO_printf(bio_c_out,"closed\n");
672 goto shut;
673 case SSL_ERROR_SSL:
674 ERR_print_errors(bio_err);
675 goto shut;
dfeab068 676 /* break; */
d02b48c6
RE
677 }
678 }
679
06f4536a
DSH
680#ifdef WINDOWS
681 else if (_kbhit())
682#else
d02b48c6 683 else if (FD_ISSET(fileno(stdin),&readfds))
06f4536a 684#endif
d02b48c6 685 {
1bdb8633
BM
686 if (crlf)
687 {
688 int j, lf_num;
689
690 i=read(fileno(stdin),cbuf,BUFSIZZ/2);
691 lf_num = 0;
692 /* both loops are skipped when i <= 0 */
693 for (j = 0; j < i; j++)
694 if (cbuf[j] == '\n')
695 lf_num++;
696 for (j = i-1; j >= 0; j--)
697 {
698 cbuf[j+lf_num] = cbuf[j];
699 if (cbuf[j] == '\n')
700 {
701 lf_num--;
702 i++;
703 cbuf[j+lf_num] = '\r';
704 }
705 }
706 assert(lf_num == 0);
707 }
708 else
1bdb8633 709 i=read(fileno(stdin),cbuf,BUFSIZZ);
d02b48c6
RE
710
711 if ((!c_quiet) && ((i <= 0) || (cbuf[0] == 'Q')))
712 {
713 BIO_printf(bio_err,"DONE\n");
714 goto shut;
715 }
716
717 if ((!c_quiet) && (cbuf[0] == 'R'))
718 {
3bb307c1 719 BIO_printf(bio_err,"RENEGOTIATING\n");
d02b48c6 720 SSL_renegotiate(con);
3bb307c1 721 cbuf_len=0;
d02b48c6
RE
722 }
723 else
724 {
725 cbuf_len=i;
726 cbuf_off=0;
a53955d8
UM
727#ifdef CHARSET_EBCDIC
728 ebcdic2ascii(cbuf, cbuf, i);
729#endif
d02b48c6
RE
730 }
731
d02b48c6 732 write_ssl=1;
3bb307c1 733 read_tty=0;
d02b48c6 734 }
d02b48c6
RE
735 }
736shut:
737 SSL_shutdown(con);
738 SHUTDOWN(SSL_get_fd(con));
739 ret=0;
740end:
c3ed3b6e 741 if(prexit) print_stuff(bio_c_out,con,1);
d02b48c6
RE
742 if (con != NULL) SSL_free(con);
743 if (con2 != NULL) SSL_free(con2);
744 if (ctx != NULL) SSL_CTX_free(ctx);
745 if (cbuf != NULL) { memset(cbuf,0,BUFSIZZ); Free(cbuf); }
746 if (sbuf != NULL) { memset(sbuf,0,BUFSIZZ); Free(sbuf); }
747 if (bio_c_out != NULL)
748 {
749 BIO_free(bio_c_out);
750 bio_c_out=NULL;
751 }
752 EXIT(ret);
753 }
754
755
6b691a5c 756static void print_stuff(BIO *bio, SSL *s, int full)
d02b48c6 757 {
58964a49 758 X509 *peer=NULL;
d02b48c6
RE
759 char *p;
760 static char *space=" ";
761 char buf[BUFSIZ];
f73e07cf
BL
762 STACK_OF(X509) *sk;
763 STACK_OF(X509_NAME) *sk2;
d02b48c6
RE
764 SSL_CIPHER *c;
765 X509_NAME *xn;
766 int j,i;
767
768 if (full)
769 {
bc2e519a
BM
770 int got_a_chain = 0;
771
d02b48c6
RE
772 sk=SSL_get_peer_cert_chain(s);
773 if (sk != NULL)
774 {
bc2e519a
BM
775 got_a_chain = 1; /* we don't have it for SSL2 (yet) */
776
dfeab068 777 BIO_printf(bio,"---\nCertificate chain\n");
f73e07cf 778 for (i=0; i<sk_X509_num(sk); i++)
d02b48c6 779 {
f73e07cf
BL
780 X509_NAME_oneline(X509_get_subject_name(
781 sk_X509_value(sk,i)),buf,BUFSIZ);
d02b48c6 782 BIO_printf(bio,"%2d s:%s\n",i,buf);
f73e07cf
BL
783 X509_NAME_oneline(X509_get_issuer_name(
784 sk_X509_value(sk,i)),buf,BUFSIZ);
d02b48c6 785 BIO_printf(bio," i:%s\n",buf);
6d02d8e4 786 if (c_showcerts)
f73e07cf 787 PEM_write_bio_X509(bio,sk_X509_value(sk,i));
d02b48c6
RE
788 }
789 }
790
791 BIO_printf(bio,"---\n");
792 peer=SSL_get_peer_certificate(s);
793 if (peer != NULL)
794 {
795 BIO_printf(bio,"Server certificate\n");
bc2e519a 796 if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
6d02d8e4 797 PEM_write_bio_X509(bio,peer);
d02b48c6
RE
798 X509_NAME_oneline(X509_get_subject_name(peer),
799 buf,BUFSIZ);
800 BIO_printf(bio,"subject=%s\n",buf);
801 X509_NAME_oneline(X509_get_issuer_name(peer),
802 buf,BUFSIZ);
803 BIO_printf(bio,"issuer=%s\n",buf);
d02b48c6
RE
804 }
805 else
806 BIO_printf(bio,"no peer certificate available\n");
807
f73e07cf 808 sk2=SSL_get_client_CA_list(s);
d91f8c3c 809 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
d02b48c6
RE
810 {
811 BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
f73e07cf 812 for (i=0; i<sk_X509_NAME_num(sk2); i++)
d02b48c6 813 {
f73e07cf 814 xn=sk_X509_NAME_value(sk2,i);
d02b48c6
RE
815 X509_NAME_oneline(xn,buf,sizeof(buf));
816 BIO_write(bio,buf,strlen(buf));
817 BIO_write(bio,"\n",1);
818 }
819 }
820 else
821 {
822 BIO_printf(bio,"---\nNo client certificate CA names sent\n");
823 }
824 p=SSL_get_shared_ciphers(s,buf,BUFSIZ);
825 if (p != NULL)
826 {
67a47285
BM
827 /* This works only for SSL 2. In later protocol
828 * versions, the client does not know what other
829 * ciphers (in addition to the one to be used
830 * in the current connection) the server supports. */
831
d02b48c6
RE
832 BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
833 j=i=0;
834 while (*p)
835 {
836 if (*p == ':')
837 {
58964a49 838 BIO_write(bio,space,15-j%25);
d02b48c6
RE
839 i++;
840 j=0;
841 BIO_write(bio,((i%3)?" ":"\n"),1);
842 }
843 else
844 {
845 BIO_write(bio,p,1);
846 j++;
847 }
848 p++;
849 }
850 BIO_write(bio,"\n",1);
851 }
852
853 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
854 BIO_number_read(SSL_get_rbio(s)),
855 BIO_number_written(SSL_get_wbio(s)));
856 }
857 BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
858 c=SSL_get_current_cipher(s);
859 BIO_printf(bio,"%s, Cipher is %s\n",
860 SSL_CIPHER_get_version(c),
861 SSL_CIPHER_get_name(c));
a8236c8c
DSH
862 if (peer != NULL) {
863 EVP_PKEY *pktmp;
864 pktmp = X509_get_pubkey(peer);
58964a49 865 BIO_printf(bio,"Server public key is %d bit\n",
a8236c8c
DSH
866 EVP_PKEY_bits(pktmp));
867 EVP_PKEY_free(pktmp);
868 }
d02b48c6
RE
869 SSL_SESSION_print(bio,SSL_get_session(s));
870 BIO_printf(bio,"---\n");
58964a49
RE
871 if (peer != NULL)
872 X509_free(peer);
d02b48c6
RE
873 }
874