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Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
[thirdparty/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 * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
60 *
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
63 * are met:
64 *
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
67 *
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
71 * distribution.
72 *
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77 *
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
82 *
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
86 *
87 * 6. Redistributions of any form whatsoever must retain the following
88 * acknowledgment:
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91 *
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
105 *
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
109 *
110 */
111 /* ====================================================================
112 * Copyright 2005 Nokia. All rights reserved.
113 *
114 * The portions of the attached software ("Contribution") is developed by
115 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
116 * license.
117 *
118 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
119 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
120 * support (see RFC 4279) to OpenSSL.
121 *
122 * No patent licenses or other rights except those expressly stated in
123 * the OpenSSL open source license shall be deemed granted or received
124 * expressly, by implication, estoppel, or otherwise.
125 *
126 * No assurances are provided by Nokia that the Contribution does not
127 * infringe the patent or other intellectual property rights of any third
128 * party or that the license provides you with all the necessary rights
129 * to make use of the Contribution.
130 *
131 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
132 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
133 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
134 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
135 * OTHERWISE.
136 */
137
138 #include <assert.h>
139 #include <ctype.h>
140 #include <stdio.h>
141 #include <stdlib.h>
142 #include <string.h>
143 #include <openssl/e_os2.h>
144 #ifdef OPENSSL_NO_STDIO
145 #define APPS_WIN16
146 #endif
147
148 /* With IPv6, it looks like Digital has mixed up the proper order of
149 recursive header file inclusion, resulting in the compiler complaining
150 that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
151 is needed to have fileno() declared correctly... So let's define u_int */
152 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
153 #define __U_INT
154 typedef unsigned int u_int;
155 #endif
156
157 #define USE_SOCKETS
158 #include "apps.h"
159 #include <openssl/x509.h>
160 #include <openssl/ssl.h>
161 #include <openssl/err.h>
162 #include <openssl/pem.h>
163 #include <openssl/rand.h>
164 #include <openssl/ocsp.h>
165 #include <openssl/bn.h>
166 #ifndef OPENSSL_NO_SRP
167 #include <openssl/srp.h>
168 #endif
169 #include "s_apps.h"
170 #include "timeouts.h"
171
172 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
173 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
174 #undef FIONBIO
175 #endif
176
177 #if defined(OPENSSL_SYS_BEOS_R5)
178 #include <fcntl.h>
179 #endif
180
181 #undef PROG
182 #define PROG s_client_main
183
184 /*#define SSL_HOST_NAME "www.netscape.com" */
185 /*#define SSL_HOST_NAME "193.118.187.102" */
186 #define SSL_HOST_NAME "localhost"
187
188 /*#define TEST_CERT "client.pem" */ /* no default cert. */
189
190 #undef BUFSIZZ
191 #define BUFSIZZ 1024*8
192
193 extern int verify_depth;
194 extern int verify_error;
195 extern int verify_return_error;
196
197 #ifdef FIONBIO
198 static int c_nbio=0;
199 #endif
200 static int c_Pause=0;
201 static int c_debug=0;
202 #ifndef OPENSSL_NO_TLSEXT
203 static int c_tlsextdebug=0;
204 static int c_status_req=0;
205 #endif
206 static int c_msg=0;
207 static int c_showcerts=0;
208
209 static char *keymatexportlabel=NULL;
210 static int keymatexportlen=20;
211
212 static void sc_usage(void);
213 static void print_stuff(BIO *berr,SSL *con,int full);
214 #ifndef OPENSSL_NO_TLSEXT
215 static int ocsp_resp_cb(SSL *s, void *arg);
216 #endif
217 static BIO *bio_c_out=NULL;
218 static int c_quiet=0;
219 static int c_ign_eof=0;
220
221 #ifndef OPENSSL_NO_PSK
222 /* Default PSK identity and key */
223 static char *psk_identity="Client_identity";
224 /*char *psk_key=NULL; by default PSK is not used */
225
226 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
227 unsigned int max_identity_len, unsigned char *psk,
228 unsigned int max_psk_len)
229 {
230 unsigned int psk_len = 0;
231 int ret;
232 BIGNUM *bn=NULL;
233
234 if (c_debug)
235 BIO_printf(bio_c_out, "psk_client_cb\n");
236 if (!hint)
237 {
238 /* no ServerKeyExchange message*/
239 if (c_debug)
240 BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n");
241 }
242 else if (c_debug)
243 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
244
245 /* lookup PSK identity and PSK key based on the given identity hint here */
246 ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
247 if (ret < 0 || (unsigned int)ret > max_identity_len)
248 goto out_err;
249 if (c_debug)
250 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret);
251 ret=BN_hex2bn(&bn, psk_key);
252 if (!ret)
253 {
254 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
255 if (bn)
256 BN_free(bn);
257 return 0;
258 }
259
260 if ((unsigned int)BN_num_bytes(bn) > max_psk_len)
261 {
262 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
263 max_psk_len, BN_num_bytes(bn));
264 BN_free(bn);
265 return 0;
266 }
267
268 psk_len=BN_bn2bin(bn, psk);
269 BN_free(bn);
270 if (psk_len == 0)
271 goto out_err;
272
273 if (c_debug)
274 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
275
276 return psk_len;
277 out_err:
278 if (c_debug)
279 BIO_printf(bio_err, "Error in PSK client callback\n");
280 return 0;
281 }
282 #endif
283
284 static void sc_usage(void)
285 {
286 BIO_printf(bio_err,"usage: s_client args\n");
287 BIO_printf(bio_err,"\n");
288 BIO_printf(bio_err," -host host - use -connect instead\n");
289 BIO_printf(bio_err," -port port - use -connect instead\n");
290 BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
291
292 BIO_printf(bio_err," -verify arg - turn on peer certificate verification\n");
293 BIO_printf(bio_err," -cert arg - certificate file to use, PEM format assumed\n");
294 BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
295 BIO_printf(bio_err," -key arg - Private key file to use, in cert file if\n");
296 BIO_printf(bio_err," not specified but cert file is.\n");
297 BIO_printf(bio_err," -keyform arg - key format (PEM or DER) PEM default\n");
298 BIO_printf(bio_err," -pass arg - private key file pass phrase source\n");
299 BIO_printf(bio_err," -CApath arg - PEM format directory of CA's\n");
300 BIO_printf(bio_err," -CAfile arg - PEM format file of CA's\n");
301 BIO_printf(bio_err," -reconnect - Drop and re-make the connection with the same Session-ID\n");
302 BIO_printf(bio_err," -pause - sleep(1) after each read(2) and write(2) system call\n");
303 BIO_printf(bio_err," -showcerts - show all certificates in the chain\n");
304 BIO_printf(bio_err," -debug - extra output\n");
305 #ifdef WATT32
306 BIO_printf(bio_err," -wdebug - WATT-32 tcp debugging\n");
307 #endif
308 BIO_printf(bio_err," -msg - Show protocol messages\n");
309 BIO_printf(bio_err," -nbio_test - more ssl protocol testing\n");
310 BIO_printf(bio_err," -state - print the 'ssl' states\n");
311 #ifdef FIONBIO
312 BIO_printf(bio_err," -nbio - Run with non-blocking IO\n");
313 #endif
314 BIO_printf(bio_err," -crlf - convert LF from terminal into CRLF\n");
315 BIO_printf(bio_err," -quiet - no s_client output\n");
316 BIO_printf(bio_err," -ign_eof - ignore input eof (default when -quiet)\n");
317 BIO_printf(bio_err," -no_ign_eof - don't ignore input eof\n");
318 #ifndef OPENSSL_NO_PSK
319 BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
320 BIO_printf(bio_err," -psk arg - PSK in hex (without 0x)\n");
321 # ifndef OPENSSL_NO_JPAKE
322 BIO_printf(bio_err," -jpake arg - JPAKE secret to use\n");
323 # endif
324 #endif
325 #ifndef OPENSSL_NO_SRP
326 BIO_printf(bio_err," -srpuser user - SRP authentification for 'user'\n");
327 BIO_printf(bio_err," -srppass arg - password for 'user'\n");
328 BIO_printf(bio_err," -srp_lateuser - SRP username into second ClientHello message\n");
329 BIO_printf(bio_err," -srp_moregroups - Tolerate other than the known g N values.\n");
330 BIO_printf(bio_err," -srp_strength int - minimal mength in bits for N (default %d).\n",SRP_MINIMAL_N);
331 #endif
332 BIO_printf(bio_err," -ssl2 - just use SSLv2\n");
333 BIO_printf(bio_err," -ssl3 - just use SSLv3\n");
334 BIO_printf(bio_err," -tls1_2 - just use TLSv1.2\n");
335 BIO_printf(bio_err," -tls1_1 - just use TLSv1.1\n");
336 BIO_printf(bio_err," -tls1 - just use TLSv1\n");
337 BIO_printf(bio_err," -dtls1 - just use DTLSv1\n");
338 BIO_printf(bio_err," -mtu - set the link layer MTU\n");
339 BIO_printf(bio_err," -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
340 BIO_printf(bio_err," -bugs - Switch on all SSL implementation bug workarounds\n");
341 BIO_printf(bio_err," -serverpref - Use server's cipher preferences (only SSLv2)\n");
342 BIO_printf(bio_err," -cipher - preferred cipher to use, use the 'openssl ciphers'\n");
343 BIO_printf(bio_err," command to see what is available\n");
344 BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
345 BIO_printf(bio_err," for those protocols that support it, where\n");
346 BIO_printf(bio_err," 'prot' defines which one to assume. Currently,\n");
347 BIO_printf(bio_err," only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
348 BIO_printf(bio_err," are supported.\n");
349 #ifndef OPENSSL_NO_ENGINE
350 BIO_printf(bio_err," -engine id - Initialise and use the specified engine\n");
351 #endif
352 BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
353 BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
354 BIO_printf(bio_err," -sess_in arg - file to read SSL session from\n");
355 #ifndef OPENSSL_NO_TLSEXT
356 BIO_printf(bio_err," -servername host - Set TLS extension servername in ClientHello\n");
357 BIO_printf(bio_err," -tlsextdebug - hex dump of all TLS extensions received\n");
358 BIO_printf(bio_err," -status - request certificate status from server\n");
359 BIO_printf(bio_err," -no_ticket - disable use of RFC4507bis session tickets\n");
360 # ifndef OPENSSL_NO_NEXTPROTONEG
361 BIO_printf(bio_err," -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n");
362 # endif
363 #endif
364 BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
365 BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list");
366 BIO_printf(bio_err," -keymatexport label - Export keying material using label\n");
367 BIO_printf(bio_err," -keymatexportlen len - Export len bytes of keying material (default 20)\n");
368 }
369
370 #ifndef OPENSSL_NO_TLSEXT
371
372 /* This is a context that we pass to callbacks */
373 typedef struct tlsextctx_st {
374 BIO * biodebug;
375 int ack;
376 } tlsextctx;
377
378
379 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
380 {
381 tlsextctx * p = (tlsextctx *) arg;
382 const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
383 if (SSL_get_servername_type(s) != -1)
384 p->ack = !SSL_session_reused(s) && hn != NULL;
385 else
386 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
387
388 return SSL_TLSEXT_ERR_OK;
389 }
390
391 #ifndef OPENSSL_NO_SRP
392
393 /* This is a context that we pass to all callbacks */
394 typedef struct srp_arg_st
395 {
396 char *srppassin;
397 char *srplogin;
398 int msg; /* copy from c_msg */
399 int debug; /* copy from c_debug */
400 int amp; /* allow more groups */
401 int strength /* minimal size for N */ ;
402 } SRP_ARG;
403
404 #define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
405
406 static int srp_Verify_N_and_g(const BIGNUM *N, const BIGNUM *g)
407 {
408 BN_CTX *bn_ctx = BN_CTX_new();
409 BIGNUM *p = BN_new();
410 BIGNUM *r = BN_new();
411 int ret =
412 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
413 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
414 p != NULL && BN_rshift1(p, N) &&
415
416 /* p = (N-1)/2 */
417 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
418 r != NULL &&
419
420 /* verify g^((N-1)/2) == -1 (mod N) */
421 BN_mod_exp(r, g, p, N, bn_ctx) &&
422 BN_add_word(r, 1) &&
423 BN_cmp(r, N) == 0;
424
425 if(r)
426 BN_free(r);
427 if(p)
428 BN_free(p);
429 if(bn_ctx)
430 BN_CTX_free(bn_ctx);
431 return ret;
432 }
433
434 /* This callback is used here for two purposes:
435 - extended debugging
436 - making some primality tests for unknown groups
437 The callback is only called for a non default group.
438
439 An application does not need the call back at all if
440 only the stanard groups are used. In real life situations,
441 client and server already share well known groups,
442 thus there is no need to verify them.
443 Furthermore, in case that a server actually proposes a group that
444 is not one of those defined in RFC 5054, it is more appropriate
445 to add the group to a static list and then compare since
446 primality tests are rather cpu consuming.
447 */
448
449 static int MS_CALLBACK ssl_srp_verify_param_cb(SSL *s, void *arg)
450 {
451 SRP_ARG *srp_arg = (SRP_ARG *)arg;
452 BIGNUM *N = NULL, *g = NULL;
453 if (!(N = SSL_get_srp_N(s)) || !(g = SSL_get_srp_g(s)))
454 return 0;
455 if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1)
456 {
457 BIO_printf(bio_err, "SRP parameters:\n");
458 BIO_printf(bio_err,"\tN="); BN_print(bio_err,N);
459 BIO_printf(bio_err,"\n\tg="); BN_print(bio_err,g);
460 BIO_printf(bio_err,"\n");
461 }
462
463 if (SRP_check_known_gN_param(g,N))
464 return 1;
465
466 if (srp_arg->amp == 1)
467 {
468 if (srp_arg->debug)
469 BIO_printf(bio_err, "SRP param N and g are not known params, going to check deeper.\n");
470
471 /* The srp_moregroups is a real debugging feature.
472 Implementors should rather add the value to the known ones.
473 The minimal size has already been tested.
474 */
475 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N,g))
476 return 1;
477 }
478 BIO_printf(bio_err, "SRP param N and g rejected.\n");
479 return 0;
480 }
481
482 #define PWD_STRLEN 1024
483
484 static char * MS_CALLBACK ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
485 {
486 SRP_ARG *srp_arg = (SRP_ARG *)arg;
487 char *pass = (char *)OPENSSL_malloc(PWD_STRLEN+1);
488 PW_CB_DATA cb_tmp;
489 int l;
490
491 cb_tmp.password = (char *)srp_arg->srppassin;
492 cb_tmp.prompt_info = "SRP user";
493 if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp))<0)
494 {
495 BIO_printf (bio_err, "Can't read Password\n");
496 OPENSSL_free(pass);
497 return NULL;
498 }
499 *(pass+l)= '\0';
500
501 return pass;
502 }
503
504 #endif
505 char *srtp_profiles = NULL;
506
507 # ifndef OPENSSL_NO_NEXTPROTONEG
508 /* This the context that we pass to next_proto_cb */
509 typedef struct tlsextnextprotoctx_st {
510 unsigned char *data;
511 unsigned short len;
512 int status;
513 } tlsextnextprotoctx;
514
515 static tlsextnextprotoctx next_proto;
516
517 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg)
518 {
519 tlsextnextprotoctx *ctx = arg;
520
521 if (!c_quiet)
522 {
523 /* We can assume that |in| is syntactically valid. */
524 unsigned i;
525 BIO_printf(bio_c_out, "Protocols advertised by server: ");
526 for (i = 0; i < inlen; )
527 {
528 if (i)
529 BIO_write(bio_c_out, ", ", 2);
530 BIO_write(bio_c_out, &in[i + 1], in[i]);
531 i += in[i] + 1;
532 }
533 BIO_write(bio_c_out, "\n", 1);
534 }
535
536 ctx->status = SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
537 return SSL_TLSEXT_ERR_OK;
538 }
539 # endif /* ndef OPENSSL_NO_NEXTPROTONEG */
540 #endif
541
542 enum
543 {
544 PROTO_OFF = 0,
545 PROTO_SMTP,
546 PROTO_POP3,
547 PROTO_IMAP,
548 PROTO_FTP,
549 PROTO_XMPP
550 };
551
552 int MAIN(int, char **);
553
554 int MAIN(int argc, char **argv)
555 {
556 unsigned int off=0, clr=0;
557 SSL *con=NULL;
558 #ifndef OPENSSL_NO_KRB5
559 KSSL_CTX *kctx;
560 #endif
561 int s,k,width,state=0;
562 char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
563 int cbuf_len,cbuf_off;
564 int sbuf_len,sbuf_off;
565 fd_set readfds,writefds;
566 short port=PORT;
567 int full_log=1;
568 char *host=SSL_HOST_NAME;
569 char *cert_file=NULL,*key_file=NULL;
570 int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
571 char *passarg = NULL, *pass = NULL;
572 X509 *cert = NULL;
573 EVP_PKEY *key = NULL;
574 char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
575 int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
576 int crlf=0;
577 int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
578 SSL_CTX *ctx=NULL;
579 int ret=1,in_init=1,i,nbio_test=0;
580 int starttls_proto = PROTO_OFF;
581 int prexit = 0;
582 X509_VERIFY_PARAM *vpm = NULL;
583 int badarg = 0;
584 const SSL_METHOD *meth=NULL;
585 int socket_type=SOCK_STREAM;
586 BIO *sbio;
587 char *inrand=NULL;
588 int mbuf_len=0;
589 struct timeval timeout, *timeoutp;
590 #ifndef OPENSSL_NO_ENGINE
591 char *engine_id=NULL;
592 char *ssl_client_engine_id=NULL;
593 ENGINE *ssl_client_engine=NULL;
594 #endif
595 ENGINE *e=NULL;
596 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
597 struct timeval tv;
598 #if defined(OPENSSL_SYS_BEOS_R5)
599 int stdin_set = 0;
600 #endif
601 #endif
602 #ifndef OPENSSL_NO_TLSEXT
603 char *servername = NULL;
604 tlsextctx tlsextcbp =
605 {NULL,0};
606 # ifndef OPENSSL_NO_NEXTPROTONEG
607 const char *next_proto_neg_in = NULL;
608 # endif
609 #endif
610 char *sess_in = NULL;
611 char *sess_out = NULL;
612 struct sockaddr peer;
613 int peerlen = sizeof(peer);
614 int enable_timeouts = 0 ;
615 long socket_mtu = 0;
616 #ifndef OPENSSL_NO_JPAKE
617 char *jpake_secret = NULL;
618 #endif
619 #ifndef OPENSSL_NO_SRP
620 char * srppass = NULL;
621 int srp_lateuser = 0;
622 SRP_ARG srp_arg = {NULL,NULL,0,0,0,1024};
623 #endif
624
625 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
626 meth=SSLv23_client_method();
627 #elif !defined(OPENSSL_NO_SSL3)
628 meth=SSLv3_client_method();
629 #elif !defined(OPENSSL_NO_SSL2)
630 meth=SSLv2_client_method();
631 #endif
632
633 apps_startup();
634 c_Pause=0;
635 c_quiet=0;
636 c_ign_eof=0;
637 c_debug=0;
638 c_msg=0;
639 c_showcerts=0;
640
641 if (bio_err == NULL)
642 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
643
644 if (!load_config(bio_err, NULL))
645 goto end;
646
647 if ( ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
648 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
649 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
650 {
651 BIO_printf(bio_err,"out of memory\n");
652 goto end;
653 }
654
655 verify_depth=0;
656 verify_error=X509_V_OK;
657 #ifdef FIONBIO
658 c_nbio=0;
659 #endif
660
661 argc--;
662 argv++;
663 while (argc >= 1)
664 {
665 if (strcmp(*argv,"-host") == 0)
666 {
667 if (--argc < 1) goto bad;
668 host= *(++argv);
669 }
670 else if (strcmp(*argv,"-port") == 0)
671 {
672 if (--argc < 1) goto bad;
673 port=atoi(*(++argv));
674 if (port == 0) goto bad;
675 }
676 else if (strcmp(*argv,"-connect") == 0)
677 {
678 if (--argc < 1) goto bad;
679 if (!extract_host_port(*(++argv),&host,NULL,&port))
680 goto bad;
681 }
682 else if (strcmp(*argv,"-verify") == 0)
683 {
684 verify=SSL_VERIFY_PEER;
685 if (--argc < 1) goto bad;
686 verify_depth=atoi(*(++argv));
687 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
688 }
689 else if (strcmp(*argv,"-cert") == 0)
690 {
691 if (--argc < 1) goto bad;
692 cert_file= *(++argv);
693 }
694 else if (strcmp(*argv,"-sess_out") == 0)
695 {
696 if (--argc < 1) goto bad;
697 sess_out = *(++argv);
698 }
699 else if (strcmp(*argv,"-sess_in") == 0)
700 {
701 if (--argc < 1) goto bad;
702 sess_in = *(++argv);
703 }
704 else if (strcmp(*argv,"-certform") == 0)
705 {
706 if (--argc < 1) goto bad;
707 cert_format = str2fmt(*(++argv));
708 }
709 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
710 {
711 if (badarg)
712 goto bad;
713 continue;
714 }
715 else if (strcmp(*argv,"-verify_return_error") == 0)
716 verify_return_error = 1;
717 else if (strcmp(*argv,"-prexit") == 0)
718 prexit=1;
719 else if (strcmp(*argv,"-crlf") == 0)
720 crlf=1;
721 else if (strcmp(*argv,"-quiet") == 0)
722 {
723 c_quiet=1;
724 c_ign_eof=1;
725 }
726 else if (strcmp(*argv,"-ign_eof") == 0)
727 c_ign_eof=1;
728 else if (strcmp(*argv,"-no_ign_eof") == 0)
729 c_ign_eof=0;
730 else if (strcmp(*argv,"-pause") == 0)
731 c_Pause=1;
732 else if (strcmp(*argv,"-debug") == 0)
733 c_debug=1;
734 #ifndef OPENSSL_NO_TLSEXT
735 else if (strcmp(*argv,"-tlsextdebug") == 0)
736 c_tlsextdebug=1;
737 else if (strcmp(*argv,"-status") == 0)
738 c_status_req=1;
739 #endif
740 #ifdef WATT32
741 else if (strcmp(*argv,"-wdebug") == 0)
742 dbug_init();
743 #endif
744 else if (strcmp(*argv,"-msg") == 0)
745 c_msg=1;
746 else if (strcmp(*argv,"-showcerts") == 0)
747 c_showcerts=1;
748 else if (strcmp(*argv,"-nbio_test") == 0)
749 nbio_test=1;
750 else if (strcmp(*argv,"-state") == 0)
751 state=1;
752 #ifndef OPENSSL_NO_PSK
753 else if (strcmp(*argv,"-psk_identity") == 0)
754 {
755 if (--argc < 1) goto bad;
756 psk_identity=*(++argv);
757 }
758 else if (strcmp(*argv,"-psk") == 0)
759 {
760 size_t j;
761
762 if (--argc < 1) goto bad;
763 psk_key=*(++argv);
764 for (j = 0; j < strlen(psk_key); j++)
765 {
766 if (isxdigit((unsigned char)psk_key[j]))
767 continue;
768 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
769 goto bad;
770 }
771 }
772 #endif
773 #ifndef OPENSSL_NO_SRP
774 else if (strcmp(*argv,"-srpuser") == 0)
775 {
776 if (--argc < 1) goto bad;
777 srp_arg.srplogin= *(++argv);
778 meth=TLSv1_client_method();
779 }
780 else if (strcmp(*argv,"-srppass") == 0)
781 {
782 if (--argc < 1) goto bad;
783 srppass= *(++argv);
784 meth=TLSv1_client_method();
785 }
786 else if (strcmp(*argv,"-srp_strength") == 0)
787 {
788 if (--argc < 1) goto bad;
789 srp_arg.strength=atoi(*(++argv));
790 BIO_printf(bio_err,"SRP minimal length for N is %d\n",srp_arg.strength);
791 meth=TLSv1_client_method();
792 }
793 else if (strcmp(*argv,"-srp_lateuser") == 0)
794 {
795 srp_lateuser= 1;
796 meth=TLSv1_client_method();
797 }
798 else if (strcmp(*argv,"-srp_moregroups") == 0)
799 {
800 srp_arg.amp=1;
801 meth=TLSv1_client_method();
802 }
803 #endif
804 #ifndef OPENSSL_NO_SSL2
805 else if (strcmp(*argv,"-ssl2") == 0)
806 meth=SSLv2_client_method();
807 #endif
808 #ifndef OPENSSL_NO_SSL3
809 else if (strcmp(*argv,"-ssl3") == 0)
810 meth=SSLv3_client_method();
811 #endif
812 #ifndef OPENSSL_NO_TLS1
813 else if (strcmp(*argv,"-tls1_2") == 0)
814 meth=TLSv1_2_client_method();
815 else if (strcmp(*argv,"-tls1_1") == 0)
816 meth=TLSv1_1_client_method();
817 else if (strcmp(*argv,"-tls1") == 0)
818 meth=TLSv1_client_method();
819 #endif
820 #ifndef OPENSSL_NO_DTLS1
821 else if (strcmp(*argv,"-dtls1") == 0)
822 {
823 meth=DTLSv1_client_method();
824 socket_type=SOCK_DGRAM;
825 }
826 else if (strcmp(*argv,"-timeout") == 0)
827 enable_timeouts=1;
828 else if (strcmp(*argv,"-mtu") == 0)
829 {
830 if (--argc < 1) goto bad;
831 socket_mtu = atol(*(++argv));
832 }
833 #endif
834 else if (strcmp(*argv,"-bugs") == 0)
835 bugs=1;
836 else if (strcmp(*argv,"-keyform") == 0)
837 {
838 if (--argc < 1) goto bad;
839 key_format = str2fmt(*(++argv));
840 }
841 else if (strcmp(*argv,"-pass") == 0)
842 {
843 if (--argc < 1) goto bad;
844 passarg = *(++argv);
845 }
846 else if (strcmp(*argv,"-key") == 0)
847 {
848 if (--argc < 1) goto bad;
849 key_file= *(++argv);
850 }
851 else if (strcmp(*argv,"-reconnect") == 0)
852 {
853 reconnect=5;
854 }
855 else if (strcmp(*argv,"-CApath") == 0)
856 {
857 if (--argc < 1) goto bad;
858 CApath= *(++argv);
859 }
860 else if (strcmp(*argv,"-CAfile") == 0)
861 {
862 if (--argc < 1) goto bad;
863 CAfile= *(++argv);
864 }
865 else if (strcmp(*argv,"-no_tls1_2") == 0)
866 off|=SSL_OP_NO_TLSv1_2;
867 else if (strcmp(*argv,"-no_tls1_1") == 0)
868 off|=SSL_OP_NO_TLSv1_1;
869 else if (strcmp(*argv,"-no_tls1") == 0)
870 off|=SSL_OP_NO_TLSv1;
871 else if (strcmp(*argv,"-no_ssl3") == 0)
872 off|=SSL_OP_NO_SSLv3;
873 else if (strcmp(*argv,"-no_ssl2") == 0)
874 off|=SSL_OP_NO_SSLv2;
875 else if (strcmp(*argv,"-no_comp") == 0)
876 { off|=SSL_OP_NO_COMPRESSION; }
877 #ifndef OPENSSL_NO_TLSEXT
878 else if (strcmp(*argv,"-no_ticket") == 0)
879 { off|=SSL_OP_NO_TICKET; }
880 # ifndef OPENSSL_NO_NEXTPROTONEG
881 else if (strcmp(*argv,"-nextprotoneg") == 0)
882 {
883 if (--argc < 1) goto bad;
884 next_proto_neg_in = *(++argv);
885 }
886 # endif
887 #endif
888 else if (strcmp(*argv,"-serverpref") == 0)
889 off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
890 else if (strcmp(*argv,"-legacy_renegotiation") == 0)
891 off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
892 else if (strcmp(*argv,"-legacy_server_connect") == 0)
893 { off|=SSL_OP_LEGACY_SERVER_CONNECT; }
894 else if (strcmp(*argv,"-no_legacy_server_connect") == 0)
895 { clr|=SSL_OP_LEGACY_SERVER_CONNECT; }
896 else if (strcmp(*argv,"-cipher") == 0)
897 {
898 if (--argc < 1) goto bad;
899 cipher= *(++argv);
900 }
901 #ifdef FIONBIO
902 else if (strcmp(*argv,"-nbio") == 0)
903 { c_nbio=1; }
904 #endif
905 else if (strcmp(*argv,"-starttls") == 0)
906 {
907 if (--argc < 1) goto bad;
908 ++argv;
909 if (strcmp(*argv,"smtp") == 0)
910 starttls_proto = PROTO_SMTP;
911 else if (strcmp(*argv,"pop3") == 0)
912 starttls_proto = PROTO_POP3;
913 else if (strcmp(*argv,"imap") == 0)
914 starttls_proto = PROTO_IMAP;
915 else if (strcmp(*argv,"ftp") == 0)
916 starttls_proto = PROTO_FTP;
917 else if (strcmp(*argv, "xmpp") == 0)
918 starttls_proto = PROTO_XMPP;
919 else
920 goto bad;
921 }
922 #ifndef OPENSSL_NO_ENGINE
923 else if (strcmp(*argv,"-engine") == 0)
924 {
925 if (--argc < 1) goto bad;
926 engine_id = *(++argv);
927 }
928 else if (strcmp(*argv,"-ssl_client_engine") == 0)
929 {
930 if (--argc < 1) goto bad;
931 ssl_client_engine_id = *(++argv);
932 }
933 #endif
934 else if (strcmp(*argv,"-rand") == 0)
935 {
936 if (--argc < 1) goto bad;
937 inrand= *(++argv);
938 }
939 #ifndef OPENSSL_NO_TLSEXT
940 else if (strcmp(*argv,"-servername") == 0)
941 {
942 if (--argc < 1) goto bad;
943 servername= *(++argv);
944 /* meth=TLSv1_client_method(); */
945 }
946 #endif
947 #ifndef OPENSSL_NO_JPAKE
948 else if (strcmp(*argv,"-jpake") == 0)
949 {
950 if (--argc < 1) goto bad;
951 jpake_secret = *++argv;
952 }
953 #endif
954 else if (strcmp(*argv,"-use_srtp") == 0)
955 {
956 if (--argc < 1) goto bad;
957 srtp_profiles = *(++argv);
958 }
959 else if (strcmp(*argv,"-keymatexport") == 0)
960 {
961 if (--argc < 1) goto bad;
962 keymatexportlabel= *(++argv);
963 }
964 else if (strcmp(*argv,"-keymatexportlen") == 0)
965 {
966 if (--argc < 1) goto bad;
967 keymatexportlen=atoi(*(++argv));
968 if (keymatexportlen == 0) goto bad;
969 }
970 else
971 {
972 BIO_printf(bio_err,"unknown option %s\n",*argv);
973 badop=1;
974 break;
975 }
976 argc--;
977 argv++;
978 }
979 if (badop)
980 {
981 bad:
982 sc_usage();
983 goto end;
984 }
985
986 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
987 if (jpake_secret)
988 {
989 if (psk_key)
990 {
991 BIO_printf(bio_err,
992 "Can't use JPAKE and PSK together\n");
993 goto end;
994 }
995 psk_identity = "JPAKE";
996 }
997
998 if (cipher)
999 {
1000 BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
1001 goto end;
1002 }
1003 cipher = "PSK";
1004 #endif
1005
1006 OpenSSL_add_ssl_algorithms();
1007 SSL_load_error_strings();
1008
1009 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1010 next_proto.status = -1;
1011 if (next_proto_neg_in)
1012 {
1013 next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
1014 if (next_proto.data == NULL)
1015 {
1016 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1017 goto end;
1018 }
1019 }
1020 else
1021 next_proto.data = NULL;
1022 #endif
1023
1024 #ifndef OPENSSL_NO_ENGINE
1025 e = setup_engine(bio_err, engine_id, 1);
1026 if (ssl_client_engine_id)
1027 {
1028 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
1029 if (!ssl_client_engine)
1030 {
1031 BIO_printf(bio_err,
1032 "Error getting client auth engine\n");
1033 goto end;
1034 }
1035 }
1036
1037 #endif
1038 if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
1039 {
1040 BIO_printf(bio_err, "Error getting password\n");
1041 goto end;
1042 }
1043
1044 if (key_file == NULL)
1045 key_file = cert_file;
1046
1047
1048 if (key_file)
1049
1050 {
1051
1052 key = load_key(bio_err, key_file, key_format, 0, pass, e,
1053 "client certificate private key file");
1054 if (!key)
1055 {
1056 ERR_print_errors(bio_err);
1057 goto end;
1058 }
1059
1060 }
1061
1062 if (cert_file)
1063
1064 {
1065 cert = load_cert(bio_err,cert_file,cert_format,
1066 NULL, e, "client certificate file");
1067
1068 if (!cert)
1069 {
1070 ERR_print_errors(bio_err);
1071 goto end;
1072 }
1073 }
1074
1075 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1076 && !RAND_status())
1077 {
1078 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1079 }
1080 if (inrand != NULL)
1081 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1082 app_RAND_load_files(inrand));
1083
1084 if (bio_c_out == NULL)
1085 {
1086 if (c_quiet && !c_debug && !c_msg)
1087 {
1088 bio_c_out=BIO_new(BIO_s_null());
1089 }
1090 else
1091 {
1092 if (bio_c_out == NULL)
1093 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1094 }
1095 }
1096
1097 #ifndef OPENSSL_NO_SRP
1098 if(!app_passwd(bio_err, srppass, NULL, &srp_arg.srppassin, NULL))
1099 {
1100 BIO_printf(bio_err, "Error getting password\n");
1101 goto end;
1102 }
1103 #endif
1104
1105 ctx=SSL_CTX_new(meth);
1106 if (ctx == NULL)
1107 {
1108 ERR_print_errors(bio_err);
1109 goto end;
1110 }
1111
1112 if (vpm)
1113 SSL_CTX_set1_param(ctx, vpm);
1114
1115 #ifndef OPENSSL_NO_ENGINE
1116 if (ssl_client_engine)
1117 {
1118 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine))
1119 {
1120 BIO_puts(bio_err, "Error setting client auth engine\n");
1121 ERR_print_errors(bio_err);
1122 ENGINE_free(ssl_client_engine);
1123 goto end;
1124 }
1125 ENGINE_free(ssl_client_engine);
1126 }
1127 #endif
1128
1129 #ifndef OPENSSL_NO_PSK
1130 #ifdef OPENSSL_NO_JPAKE
1131 if (psk_key != NULL)
1132 #else
1133 if (psk_key != NULL || jpake_secret)
1134 #endif
1135 {
1136 if (c_debug)
1137 BIO_printf(bio_c_out, "PSK key given or JPAKE in use, setting client callback\n");
1138 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1139 }
1140 if (srtp_profiles != NULL)
1141 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1142 #endif
1143 if (bugs)
1144 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
1145 else
1146 SSL_CTX_set_options(ctx,off);
1147
1148 if (clr)
1149 SSL_CTX_clear_options(ctx, clr);
1150 /* DTLS: partial reads end up discarding unread UDP bytes :-(
1151 * Setting read ahead solves this problem.
1152 */
1153 if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1154
1155 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1156 if (next_proto.data)
1157 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1158 #endif
1159
1160 if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1161 if (cipher != NULL)
1162 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
1163 BIO_printf(bio_err,"error setting cipher list\n");
1164 ERR_print_errors(bio_err);
1165 goto end;
1166 }
1167 #if 0
1168 else
1169 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
1170 #endif
1171
1172 SSL_CTX_set_verify(ctx,verify,verify_callback);
1173 if (!set_cert_key_stuff(ctx,cert,key))
1174 goto end;
1175
1176 if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1177 (!SSL_CTX_set_default_verify_paths(ctx)))
1178 {
1179 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
1180 ERR_print_errors(bio_err);
1181 /* goto end; */
1182 }
1183
1184 #ifndef OPENSSL_NO_TLSEXT
1185 if (servername != NULL)
1186 {
1187 tlsextcbp.biodebug = bio_err;
1188 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1189 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1190 }
1191 #ifndef OPENSSL_NO_SRP
1192 if (srp_arg.srplogin)
1193 {
1194 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin))
1195 {
1196 BIO_printf(bio_err,"Unable to set SRP username\n");
1197 goto end;
1198 }
1199 srp_arg.msg = c_msg;
1200 srp_arg.debug = c_debug ;
1201 SSL_CTX_set_srp_cb_arg(ctx,&srp_arg);
1202 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1203 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1204 if (c_msg || c_debug || srp_arg.amp == 0)
1205 SSL_CTX_set_srp_verify_param_callback(ctx, ssl_srp_verify_param_cb);
1206 }
1207
1208 #endif
1209 #endif
1210
1211 con=SSL_new(ctx);
1212 if (sess_in)
1213 {
1214 SSL_SESSION *sess;
1215 BIO *stmp = BIO_new_file(sess_in, "r");
1216 if (!stmp)
1217 {
1218 BIO_printf(bio_err, "Can't open session file %s\n",
1219 sess_in);
1220 ERR_print_errors(bio_err);
1221 goto end;
1222 }
1223 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1224 BIO_free(stmp);
1225 if (!sess)
1226 {
1227 BIO_printf(bio_err, "Can't open session file %s\n",
1228 sess_in);
1229 ERR_print_errors(bio_err);
1230 goto end;
1231 }
1232 SSL_set_session(con, sess);
1233 SSL_SESSION_free(sess);
1234 }
1235 #ifndef OPENSSL_NO_TLSEXT
1236 if (servername != NULL)
1237 {
1238 if (!SSL_set_tlsext_host_name(con,servername))
1239 {
1240 BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
1241 ERR_print_errors(bio_err);
1242 goto end;
1243 }
1244 }
1245 #endif
1246 #ifndef OPENSSL_NO_KRB5
1247 if (con && (kctx = kssl_ctx_new()) != NULL)
1248 {
1249 SSL_set0_kssl_ctx(con, kctx);
1250 kssl_ctx_setstring(kctx, KSSL_SERVER, host);
1251 }
1252 #endif /* OPENSSL_NO_KRB5 */
1253 /* SSL_set_cipher_list(con,"RC4-MD5"); */
1254 #if 0
1255 #ifdef TLSEXT_TYPE_opaque_prf_input
1256 SSL_set_tlsext_opaque_prf_input(con, "Test client", 11);
1257 #endif
1258 #endif
1259
1260 re_start:
1261
1262 if (init_client(&s,host,port,socket_type) == 0)
1263 {
1264 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
1265 SHUTDOWN(s);
1266 goto end;
1267 }
1268 BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
1269
1270 #ifdef FIONBIO
1271 if (c_nbio)
1272 {
1273 unsigned long l=1;
1274 BIO_printf(bio_c_out,"turning on non blocking io\n");
1275 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
1276 {
1277 ERR_print_errors(bio_err);
1278 goto end;
1279 }
1280 }
1281 #endif
1282 if (c_Pause & 0x01) SSL_set_debug(con, 1);
1283
1284 if ( SSL_version(con) == DTLS1_VERSION)
1285 {
1286
1287 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
1288 if (getsockname(s, &peer, (void *)&peerlen) < 0)
1289 {
1290 BIO_printf(bio_err, "getsockname:errno=%d\n",
1291 get_last_socket_error());
1292 SHUTDOWN(s);
1293 goto end;
1294 }
1295
1296 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
1297
1298 if (enable_timeouts)
1299 {
1300 timeout.tv_sec = 0;
1301 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1302 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1303
1304 timeout.tv_sec = 0;
1305 timeout.tv_usec = DGRAM_SND_TIMEOUT;
1306 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1307 }
1308
1309 if (socket_mtu > 28)
1310 {
1311 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1312 SSL_set_mtu(con, socket_mtu - 28);
1313 }
1314 else
1315 /* want to do MTU discovery */
1316 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1317 }
1318 else
1319 sbio=BIO_new_socket(s,BIO_NOCLOSE);
1320
1321 if (nbio_test)
1322 {
1323 BIO *test;
1324
1325 test=BIO_new(BIO_f_nbio_test());
1326 sbio=BIO_push(test,sbio);
1327 }
1328
1329 if (c_debug)
1330 {
1331 SSL_set_debug(con, 1);
1332 BIO_set_callback(sbio,bio_dump_callback);
1333 BIO_set_callback_arg(sbio,(char *)bio_c_out);
1334 }
1335 if (c_msg)
1336 {
1337 SSL_set_msg_callback(con, msg_cb);
1338 SSL_set_msg_callback_arg(con, bio_c_out);
1339 }
1340 #ifndef OPENSSL_NO_TLSEXT
1341 if (c_tlsextdebug)
1342 {
1343 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1344 SSL_set_tlsext_debug_arg(con, bio_c_out);
1345 }
1346 if (c_status_req)
1347 {
1348 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
1349 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
1350 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
1351 #if 0
1352 {
1353 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
1354 OCSP_RESPID *id = OCSP_RESPID_new();
1355 id->value.byKey = ASN1_OCTET_STRING_new();
1356 id->type = V_OCSP_RESPID_KEY;
1357 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
1358 sk_OCSP_RESPID_push(ids, id);
1359 SSL_set_tlsext_status_ids(con, ids);
1360 }
1361 #endif
1362 }
1363 #endif
1364 #ifndef OPENSSL_NO_JPAKE
1365 if (jpake_secret)
1366 jpake_client_auth(bio_c_out, sbio, jpake_secret);
1367 #endif
1368
1369 SSL_set_bio(con,sbio,sbio);
1370 SSL_set_connect_state(con);
1371
1372 /* ok, lets connect */
1373 width=SSL_get_fd(con)+1;
1374
1375 read_tty=1;
1376 write_tty=0;
1377 tty_on=0;
1378 read_ssl=1;
1379 write_ssl=1;
1380
1381 cbuf_len=0;
1382 cbuf_off=0;
1383 sbuf_len=0;
1384 sbuf_off=0;
1385
1386 /* This is an ugly hack that does a lot of assumptions */
1387 /* We do have to handle multi-line responses which may come
1388 in a single packet or not. We therefore have to use
1389 BIO_gets() which does need a buffering BIO. So during
1390 the initial chitchat we do push a buffering BIO into the
1391 chain that is removed again later on to not disturb the
1392 rest of the s_client operation. */
1393 if (starttls_proto == PROTO_SMTP)
1394 {
1395 int foundit=0;
1396 BIO *fbio = BIO_new(BIO_f_buffer());
1397 BIO_push(fbio, sbio);
1398 /* wait for multi-line response to end from SMTP */
1399 do
1400 {
1401 mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1402 }
1403 while (mbuf_len>3 && mbuf[3]=='-');
1404 /* STARTTLS command requires EHLO... */
1405 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
1406 (void)BIO_flush(fbio);
1407 /* wait for multi-line response to end EHLO SMTP response */
1408 do
1409 {
1410 mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1411 if (strstr(mbuf,"STARTTLS"))
1412 foundit=1;
1413 }
1414 while (mbuf_len>3 && mbuf[3]=='-');
1415 (void)BIO_flush(fbio);
1416 BIO_pop(fbio);
1417 BIO_free(fbio);
1418 if (!foundit)
1419 BIO_printf(bio_err,
1420 "didn't found starttls in server response,"
1421 " try anyway...\n");
1422 BIO_printf(sbio,"STARTTLS\r\n");
1423 BIO_read(sbio,sbuf,BUFSIZZ);
1424 }
1425 else if (starttls_proto == PROTO_POP3)
1426 {
1427 BIO_read(sbio,mbuf,BUFSIZZ);
1428 BIO_printf(sbio,"STLS\r\n");
1429 BIO_read(sbio,sbuf,BUFSIZZ);
1430 }
1431 else if (starttls_proto == PROTO_IMAP)
1432 {
1433 int foundit=0;
1434 BIO *fbio = BIO_new(BIO_f_buffer());
1435 BIO_push(fbio, sbio);
1436 BIO_gets(fbio,mbuf,BUFSIZZ);
1437 /* STARTTLS command requires CAPABILITY... */
1438 BIO_printf(fbio,". CAPABILITY\r\n");
1439 (void)BIO_flush(fbio);
1440 /* wait for multi-line CAPABILITY response */
1441 do
1442 {
1443 mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1444 if (strstr(mbuf,"STARTTLS"))
1445 foundit=1;
1446 }
1447 while (mbuf_len>3 && mbuf[0]!='.');
1448 (void)BIO_flush(fbio);
1449 BIO_pop(fbio);
1450 BIO_free(fbio);
1451 if (!foundit)
1452 BIO_printf(bio_err,
1453 "didn't found STARTTLS in server response,"
1454 " try anyway...\n");
1455 BIO_printf(sbio,". STARTTLS\r\n");
1456 BIO_read(sbio,sbuf,BUFSIZZ);
1457 }
1458 else if (starttls_proto == PROTO_FTP)
1459 {
1460 BIO *fbio = BIO_new(BIO_f_buffer());
1461 BIO_push(fbio, sbio);
1462 /* wait for multi-line response to end from FTP */
1463 do
1464 {
1465 mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1466 }
1467 while (mbuf_len>3 && mbuf[3]=='-');
1468 (void)BIO_flush(fbio);
1469 BIO_pop(fbio);
1470 BIO_free(fbio);
1471 BIO_printf(sbio,"AUTH TLS\r\n");
1472 BIO_read(sbio,sbuf,BUFSIZZ);
1473 }
1474 if (starttls_proto == PROTO_XMPP)
1475 {
1476 int seen = 0;
1477 BIO_printf(sbio,"<stream:stream "
1478 "xmlns:stream='http://etherx.jabber.org/streams' "
1479 "xmlns='jabber:client' to='%s' version='1.0'>", host);
1480 seen = BIO_read(sbio,mbuf,BUFSIZZ);
1481 mbuf[seen] = 0;
1482 while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'"))
1483 {
1484 if (strstr(mbuf, "/stream:features>"))
1485 goto shut;
1486 seen = BIO_read(sbio,mbuf,BUFSIZZ);
1487 mbuf[seen] = 0;
1488 }
1489 BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
1490 seen = BIO_read(sbio,sbuf,BUFSIZZ);
1491 sbuf[seen] = 0;
1492 if (!strstr(sbuf, "<proceed"))
1493 goto shut;
1494 mbuf[0] = 0;
1495 }
1496
1497 for (;;)
1498 {
1499 FD_ZERO(&readfds);
1500 FD_ZERO(&writefds);
1501
1502 if ((SSL_version(con) == DTLS1_VERSION) &&
1503 DTLSv1_get_timeout(con, &timeout))
1504 timeoutp = &timeout;
1505 else
1506 timeoutp = NULL;
1507
1508 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1509 {
1510 in_init=1;
1511 tty_on=0;
1512 }
1513 else
1514 {
1515 tty_on=1;
1516 if (in_init)
1517 {
1518 in_init=0;
1519 #if 0 /* This test doesn't really work as intended (needs to be fixed) */
1520 #ifndef OPENSSL_NO_TLSEXT
1521 if (servername != NULL && !SSL_session_reused(con))
1522 {
1523 BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
1524 }
1525 #endif
1526 #endif
1527 if (sess_out)
1528 {
1529 BIO *stmp = BIO_new_file(sess_out, "w");
1530 if (stmp)
1531 {
1532 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1533 BIO_free(stmp);
1534 }
1535 else
1536 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1537 }
1538 print_stuff(bio_c_out,con,full_log);
1539 if (full_log > 0) full_log--;
1540
1541 if (starttls_proto)
1542 {
1543 BIO_printf(bio_err,"%s",mbuf);
1544 /* We don't need to know any more */
1545 starttls_proto = PROTO_OFF;
1546 }
1547
1548 if (reconnect)
1549 {
1550 reconnect--;
1551 BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1552 SSL_shutdown(con);
1553 SSL_set_connect_state(con);
1554 SHUTDOWN(SSL_get_fd(con));
1555 goto re_start;
1556 }
1557 }
1558 }
1559
1560 ssl_pending = read_ssl && SSL_pending(con);
1561
1562 if (!ssl_pending)
1563 {
1564 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
1565 if (tty_on)
1566 {
1567 if (read_tty) openssl_fdset(fileno(stdin),&readfds);
1568 if (write_tty) openssl_fdset(fileno(stdout),&writefds);
1569 }
1570 if (read_ssl)
1571 openssl_fdset(SSL_get_fd(con),&readfds);
1572 if (write_ssl)
1573 openssl_fdset(SSL_get_fd(con),&writefds);
1574 #else
1575 if(!tty_on || !write_tty) {
1576 if (read_ssl)
1577 openssl_fdset(SSL_get_fd(con),&readfds);
1578 if (write_ssl)
1579 openssl_fdset(SSL_get_fd(con),&writefds);
1580 }
1581 #endif
1582 /* printf("mode tty(%d %d%d) ssl(%d%d)\n",
1583 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1584
1585 /* Note: under VMS with SOCKETSHR the second parameter
1586 * is currently of type (int *) whereas under other
1587 * systems it is (void *) if you don't have a cast it
1588 * will choke the compiler: if you do have a cast then
1589 * you can either go for (int *) or (void *).
1590 */
1591 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1592 /* Under Windows/DOS we make the assumption that we can
1593 * always write to the tty: therefore if we need to
1594 * write to the tty we just fall through. Otherwise
1595 * we timeout the select every second and see if there
1596 * are any keypresses. Note: this is a hack, in a proper
1597 * Windows application we wouldn't do this.
1598 */
1599 i=0;
1600 if(!write_tty) {
1601 if(read_tty) {
1602 tv.tv_sec = 1;
1603 tv.tv_usec = 0;
1604 i=select(width,(void *)&readfds,(void *)&writefds,
1605 NULL,&tv);
1606 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1607 if(!i && (!_kbhit() || !read_tty) ) continue;
1608 #else
1609 if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1610 #endif
1611 } else i=select(width,(void *)&readfds,(void *)&writefds,
1612 NULL,timeoutp);
1613 }
1614 #elif defined(OPENSSL_SYS_NETWARE)
1615 if(!write_tty) {
1616 if(read_tty) {
1617 tv.tv_sec = 1;
1618 tv.tv_usec = 0;
1619 i=select(width,(void *)&readfds,(void *)&writefds,
1620 NULL,&tv);
1621 } else i=select(width,(void *)&readfds,(void *)&writefds,
1622 NULL,timeoutp);
1623 }
1624 #elif defined(OPENSSL_SYS_BEOS_R5)
1625 /* Under BeOS-R5 the situation is similar to DOS */
1626 i=0;
1627 stdin_set = 0;
1628 (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1629 if(!write_tty) {
1630 if(read_tty) {
1631 tv.tv_sec = 1;
1632 tv.tv_usec = 0;
1633 i=select(width,(void *)&readfds,(void *)&writefds,
1634 NULL,&tv);
1635 if (read(fileno(stdin), sbuf, 0) >= 0)
1636 stdin_set = 1;
1637 if (!i && (stdin_set != 1 || !read_tty))
1638 continue;
1639 } else i=select(width,(void *)&readfds,(void *)&writefds,
1640 NULL,timeoutp);
1641 }
1642 (void)fcntl(fileno(stdin), F_SETFL, 0);
1643 #else
1644 i=select(width,(void *)&readfds,(void *)&writefds,
1645 NULL,timeoutp);
1646 #endif
1647 if ( i < 0)
1648 {
1649 BIO_printf(bio_err,"bad select %d\n",
1650 get_last_socket_error());
1651 goto shut;
1652 /* goto end; */
1653 }
1654 }
1655
1656 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
1657 {
1658 BIO_printf(bio_err,"TIMEOUT occured\n");
1659 }
1660
1661 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1662 {
1663 k=SSL_write(con,&(cbuf[cbuf_off]),
1664 (unsigned int)cbuf_len);
1665 switch (SSL_get_error(con,k))
1666 {
1667 case SSL_ERROR_NONE:
1668 cbuf_off+=k;
1669 cbuf_len-=k;
1670 if (k <= 0) goto end;
1671 /* we have done a write(con,NULL,0); */
1672 if (cbuf_len <= 0)
1673 {
1674 read_tty=1;
1675 write_ssl=0;
1676 }
1677 else /* if (cbuf_len > 0) */
1678 {
1679 read_tty=0;
1680 write_ssl=1;
1681 }
1682 break;
1683 case SSL_ERROR_WANT_WRITE:
1684 BIO_printf(bio_c_out,"write W BLOCK\n");
1685 write_ssl=1;
1686 read_tty=0;
1687 break;
1688 case SSL_ERROR_WANT_READ:
1689 BIO_printf(bio_c_out,"write R BLOCK\n");
1690 write_tty=0;
1691 read_ssl=1;
1692 write_ssl=0;
1693 break;
1694 case SSL_ERROR_WANT_X509_LOOKUP:
1695 BIO_printf(bio_c_out,"write X BLOCK\n");
1696 break;
1697 case SSL_ERROR_ZERO_RETURN:
1698 if (cbuf_len != 0)
1699 {
1700 BIO_printf(bio_c_out,"shutdown\n");
1701 ret = 0;
1702 goto shut;
1703 }
1704 else
1705 {
1706 read_tty=1;
1707 write_ssl=0;
1708 break;
1709 }
1710
1711 case SSL_ERROR_SYSCALL:
1712 if ((k != 0) || (cbuf_len != 0))
1713 {
1714 BIO_printf(bio_err,"write:errno=%d\n",
1715 get_last_socket_error());
1716 goto shut;
1717 }
1718 else
1719 {
1720 read_tty=1;
1721 write_ssl=0;
1722 }
1723 break;
1724 case SSL_ERROR_SSL:
1725 ERR_print_errors(bio_err);
1726 goto shut;
1727 }
1728 }
1729 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1730 /* Assume Windows/DOS/BeOS can always write */
1731 else if (!ssl_pending && write_tty)
1732 #else
1733 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1734 #endif
1735 {
1736 #ifdef CHARSET_EBCDIC
1737 ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1738 #endif
1739 i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
1740
1741 if (i <= 0)
1742 {
1743 BIO_printf(bio_c_out,"DONE\n");
1744 ret = 0;
1745 goto shut;
1746 /* goto end; */
1747 }
1748
1749 sbuf_len-=i;;
1750 sbuf_off+=i;
1751 if (sbuf_len <= 0)
1752 {
1753 read_ssl=1;
1754 write_tty=0;
1755 }
1756 }
1757 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1758 {
1759 #ifdef RENEG
1760 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1761 #endif
1762 #if 1
1763 k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1764 #else
1765 /* Demo for pending and peek :-) */
1766 k=SSL_read(con,sbuf,16);
1767 { char zbuf[10240];
1768 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1769 }
1770 #endif
1771
1772 switch (SSL_get_error(con,k))
1773 {
1774 case SSL_ERROR_NONE:
1775 if (k <= 0)
1776 goto end;
1777 sbuf_off=0;
1778 sbuf_len=k;
1779
1780 read_ssl=0;
1781 write_tty=1;
1782 break;
1783 case SSL_ERROR_WANT_WRITE:
1784 BIO_printf(bio_c_out,"read W BLOCK\n");
1785 write_ssl=1;
1786 read_tty=0;
1787 break;
1788 case SSL_ERROR_WANT_READ:
1789 BIO_printf(bio_c_out,"read R BLOCK\n");
1790 write_tty=0;
1791 read_ssl=1;
1792 if ((read_tty == 0) && (write_ssl == 0))
1793 write_ssl=1;
1794 break;
1795 case SSL_ERROR_WANT_X509_LOOKUP:
1796 BIO_printf(bio_c_out,"read X BLOCK\n");
1797 break;
1798 case SSL_ERROR_SYSCALL:
1799 ret=get_last_socket_error();
1800 BIO_printf(bio_err,"read:errno=%d\n",ret);
1801 goto shut;
1802 case SSL_ERROR_ZERO_RETURN:
1803 BIO_printf(bio_c_out,"closed\n");
1804 ret=0;
1805 goto shut;
1806 case SSL_ERROR_SSL:
1807 ERR_print_errors(bio_err);
1808 goto shut;
1809 /* break; */
1810 }
1811 }
1812
1813 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1814 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1815 else if (_kbhit())
1816 #else
1817 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1818 #endif
1819 #elif defined (OPENSSL_SYS_NETWARE)
1820 else if (_kbhit())
1821 #elif defined(OPENSSL_SYS_BEOS_R5)
1822 else if (stdin_set)
1823 #else
1824 else if (FD_ISSET(fileno(stdin),&readfds))
1825 #endif
1826 {
1827 if (crlf)
1828 {
1829 int j, lf_num;
1830
1831 i=raw_read_stdin(cbuf,BUFSIZZ/2);
1832 lf_num = 0;
1833 /* both loops are skipped when i <= 0 */
1834 for (j = 0; j < i; j++)
1835 if (cbuf[j] == '\n')
1836 lf_num++;
1837 for (j = i-1; j >= 0; j--)
1838 {
1839 cbuf[j+lf_num] = cbuf[j];
1840 if (cbuf[j] == '\n')
1841 {
1842 lf_num--;
1843 i++;
1844 cbuf[j+lf_num] = '\r';
1845 }
1846 }
1847 assert(lf_num == 0);
1848 }
1849 else
1850 i=raw_read_stdin(cbuf,BUFSIZZ);
1851
1852 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1853 {
1854 BIO_printf(bio_err,"DONE\n");
1855 ret=0;
1856 goto shut;
1857 }
1858
1859 if ((!c_ign_eof) && (cbuf[0] == 'R'))
1860 {
1861 BIO_printf(bio_err,"RENEGOTIATING\n");
1862 SSL_renegotiate(con);
1863 cbuf_len=0;
1864 }
1865 #ifndef OPENSSL_NO_HEARTBEATS
1866 else if ((!c_ign_eof) && (cbuf[0] == 'B'))
1867 {
1868 BIO_printf(bio_err,"HEARTBEATING\n");
1869 SSL_heartbeat(con);
1870 cbuf_len=0;
1871 }
1872 #endif
1873 else
1874 {
1875 cbuf_len=i;
1876 cbuf_off=0;
1877 #ifdef CHARSET_EBCDIC
1878 ebcdic2ascii(cbuf, cbuf, i);
1879 #endif
1880 }
1881
1882 write_ssl=1;
1883 read_tty=0;
1884 }
1885 }
1886
1887 ret=0;
1888 shut:
1889 if (in_init)
1890 print_stuff(bio_c_out,con,full_log);
1891 SSL_shutdown(con);
1892 SHUTDOWN(SSL_get_fd(con));
1893 end:
1894 if (con != NULL)
1895 {
1896 if (prexit != 0)
1897 print_stuff(bio_c_out,con,1);
1898 SSL_free(con);
1899 }
1900 if (ctx != NULL) SSL_CTX_free(ctx);
1901 if (cert)
1902 X509_free(cert);
1903 if (key)
1904 EVP_PKEY_free(key);
1905 if (pass)
1906 OPENSSL_free(pass);
1907 if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1908 if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1909 if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1910 if (bio_c_out != NULL)
1911 {
1912 BIO_free(bio_c_out);
1913 bio_c_out=NULL;
1914 }
1915 apps_shutdown();
1916 OPENSSL_EXIT(ret);
1917 }
1918
1919
1920 static void print_stuff(BIO *bio, SSL *s, int full)
1921 {
1922 X509 *peer=NULL;
1923 char *p;
1924 static const char *space=" ";
1925 char buf[BUFSIZ];
1926 STACK_OF(X509) *sk;
1927 STACK_OF(X509_NAME) *sk2;
1928 const SSL_CIPHER *c;
1929 X509_NAME *xn;
1930 int j,i;
1931 #ifndef OPENSSL_NO_COMP
1932 const COMP_METHOD *comp, *expansion;
1933 #endif
1934 unsigned char *exportedkeymat;
1935
1936 if (full)
1937 {
1938 int got_a_chain = 0;
1939
1940 sk=SSL_get_peer_cert_chain(s);
1941 if (sk != NULL)
1942 {
1943 got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1944
1945 BIO_printf(bio,"---\nCertificate chain\n");
1946 for (i=0; i<sk_X509_num(sk); i++)
1947 {
1948 X509_NAME_oneline(X509_get_subject_name(
1949 sk_X509_value(sk,i)),buf,sizeof buf);
1950 BIO_printf(bio,"%2d s:%s\n",i,buf);
1951 X509_NAME_oneline(X509_get_issuer_name(
1952 sk_X509_value(sk,i)),buf,sizeof buf);
1953 BIO_printf(bio," i:%s\n",buf);
1954 if (c_showcerts)
1955 PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1956 }
1957 }
1958
1959 BIO_printf(bio,"---\n");
1960 peer=SSL_get_peer_certificate(s);
1961 if (peer != NULL)
1962 {
1963 BIO_printf(bio,"Server certificate\n");
1964 if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1965 PEM_write_bio_X509(bio,peer);
1966 X509_NAME_oneline(X509_get_subject_name(peer),
1967 buf,sizeof buf);
1968 BIO_printf(bio,"subject=%s\n",buf);
1969 X509_NAME_oneline(X509_get_issuer_name(peer),
1970 buf,sizeof buf);
1971 BIO_printf(bio,"issuer=%s\n",buf);
1972 }
1973 else
1974 BIO_printf(bio,"no peer certificate available\n");
1975
1976 sk2=SSL_get_client_CA_list(s);
1977 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1978 {
1979 BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1980 for (i=0; i<sk_X509_NAME_num(sk2); i++)
1981 {
1982 xn=sk_X509_NAME_value(sk2,i);
1983 X509_NAME_oneline(xn,buf,sizeof(buf));
1984 BIO_write(bio,buf,strlen(buf));
1985 BIO_write(bio,"\n",1);
1986 }
1987 }
1988 else
1989 {
1990 BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1991 }
1992 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1993 if (p != NULL)
1994 {
1995 /* This works only for SSL 2. In later protocol
1996 * versions, the client does not know what other
1997 * ciphers (in addition to the one to be used
1998 * in the current connection) the server supports. */
1999
2000 BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
2001 j=i=0;
2002 while (*p)
2003 {
2004 if (*p == ':')
2005 {
2006 BIO_write(bio,space,15-j%25);
2007 i++;
2008 j=0;
2009 BIO_write(bio,((i%3)?" ":"\n"),1);
2010 }
2011 else
2012 {
2013 BIO_write(bio,p,1);
2014 j++;
2015 }
2016 p++;
2017 }
2018 BIO_write(bio,"\n",1);
2019 }
2020
2021 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
2022 BIO_number_read(SSL_get_rbio(s)),
2023 BIO_number_written(SSL_get_wbio(s)));
2024 }
2025 BIO_printf(bio,(SSL_cache_hit(s)?"---\nReused, ":"---\nNew, "));
2026 c=SSL_get_current_cipher(s);
2027 BIO_printf(bio,"%s, Cipher is %s\n",
2028 SSL_CIPHER_get_version(c),
2029 SSL_CIPHER_get_name(c));
2030 if (peer != NULL) {
2031 EVP_PKEY *pktmp;
2032 pktmp = X509_get_pubkey(peer);
2033 BIO_printf(bio,"Server public key is %d bit\n",
2034 EVP_PKEY_bits(pktmp));
2035 EVP_PKEY_free(pktmp);
2036 }
2037 BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
2038 SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
2039 #ifndef OPENSSL_NO_COMP
2040 comp=SSL_get_current_compression(s);
2041 expansion=SSL_get_current_expansion(s);
2042 BIO_printf(bio,"Compression: %s\n",
2043 comp ? SSL_COMP_get_name(comp) : "NONE");
2044 BIO_printf(bio,"Expansion: %s\n",
2045 expansion ? SSL_COMP_get_name(expansion) : "NONE");
2046 #endif
2047
2048 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2049 if (next_proto.status != -1) {
2050 const unsigned char *proto;
2051 unsigned int proto_len;
2052 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
2053 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
2054 BIO_write(bio, proto, proto_len);
2055 BIO_write(bio, "\n", 1);
2056 }
2057 #endif
2058
2059 #if 1
2060 {
2061 /* Print out local port of connection: useful for debugging */
2062 int sock;
2063 struct sockaddr_in ladd;
2064 socklen_t ladd_size = sizeof(ladd);
2065 sock = SSL_get_fd(s);
2066 getsockname(sock, (struct sockaddr *)&ladd, &ladd_size);
2067 BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port));
2068 }
2069 #endif
2070
2071 {
2072 SRTP_PROTECTION_PROFILE *srtp_profile=SSL_get_selected_srtp_profile(s);
2073
2074 if(srtp_profile)
2075 BIO_printf(bio,"SRTP Extension negotiated, profile=%s\n",
2076 srtp_profile->name);
2077 }
2078
2079 SSL_SESSION_print(bio,SSL_get_session(s));
2080 if (keymatexportlabel != NULL) {
2081 BIO_printf(bio, "Keying material exporter:\n");
2082 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
2083 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
2084 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2085 if (exportedkeymat != NULL) {
2086 i = SSL_export_keying_material(s, exportedkeymat,
2087 keymatexportlen,
2088 keymatexportlabel,
2089 strlen(keymatexportlabel),
2090 NULL, 0, 0);
2091 if (i != keymatexportlen) {
2092 BIO_printf(bio,
2093 " Error: return value %i\n", i);
2094 } else {
2095 BIO_printf(bio, " Keying material: ");
2096 for (i=0; i<keymatexportlen; i++)
2097 BIO_printf(bio, "%02X",
2098 exportedkeymat[i]);
2099 BIO_printf(bio, "\n");
2100 }
2101 OPENSSL_free(exportedkeymat);
2102 }
2103 }
2104 BIO_printf(bio,"---\n");
2105 if (peer != NULL)
2106 X509_free(peer);
2107 /* flush, or debugging output gets mixed with http response */
2108 (void)BIO_flush(bio);
2109 }
2110
2111 #ifndef OPENSSL_NO_TLSEXT
2112
2113 static int ocsp_resp_cb(SSL *s, void *arg)
2114 {
2115 const unsigned char *p;
2116 int len;
2117 OCSP_RESPONSE *rsp;
2118 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
2119 BIO_puts(arg, "OCSP response: ");
2120 if (!p)
2121 {
2122 BIO_puts(arg, "no response sent\n");
2123 return 1;
2124 }
2125 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
2126 if (!rsp)
2127 {
2128 BIO_puts(arg, "response parse error\n");
2129 BIO_dump_indent(arg, (char *)p, len, 4);
2130 return 0;
2131 }
2132 BIO_puts(arg, "\n======================================\n");
2133 OCSP_RESPONSE_print(arg, rsp, 0);
2134 BIO_puts(arg, "======================================\n");
2135 OCSP_RESPONSE_free(rsp);
2136 return 1;
2137 }
2138
2139 #endif
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