GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/openssl/s_client.c Lines: 0 871 0.0 %
Date: 2016-12-06 Branches: 0 582 0.0 %

Line Branch Exec Source
1
/* $OpenBSD: s_client.c,v 1.28 2016/06/21 03:56:43 bcook Exp $ */
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 <sys/types.h>
139
#include <sys/socket.h>
140
141
#include <netinet/in.h>
142
143
#include <assert.h>
144
#include <ctype.h>
145
#include <limits.h>
146
#include <netdb.h>
147
#include <stdio.h>
148
#include <stdlib.h>
149
#include <string.h>
150
#include <unistd.h>
151
#include <poll.h>
152
153
#include "apps.h"
154
155
#include <openssl/bn.h>
156
#include <openssl/err.h>
157
#include <openssl/ocsp.h>
158
#include <openssl/pem.h>
159
#include <openssl/ssl.h>
160
#include <openssl/x509.h>
161
162
#include "s_apps.h"
163
#include "timeouts.h"
164
165
/*#define SSL_HOST_NAME	"www.netscape.com" */
166
/*#define SSL_HOST_NAME	"193.118.187.102" */
167
#define SSL_HOST_NAME	"localhost"
168
169
 /*#define TEST_CERT "client.pem" *//* no default cert. */
170
171
#define BUFSIZZ 1024*8
172
173
static int c_nbio = 0;
174
static int c_Pause = 0;
175
static int c_debug = 0;
176
static int c_tlsextdebug = 0;
177
static int c_status_req = 0;
178
static int c_msg = 0;
179
static int c_showcerts = 0;
180
181
static char *keymatexportlabel = NULL;
182
static int keymatexportlen = 20;
183
184
static void sc_usage(void);
185
static void print_stuff(BIO * berr, SSL * con, int full);
186
static int ocsp_resp_cb(SSL * s, void *arg);
187
static BIO *bio_c_out = NULL;
188
static int c_quiet = 0;
189
static int c_ign_eof = 0;
190
191
192
static void
193
sc_usage(void)
194
{
195
	BIO_printf(bio_err, "usage: s_client args\n");
196
	BIO_printf(bio_err, "\n");
197
	BIO_printf(bio_err, " -4            - Force IPv4\n");
198
	BIO_printf(bio_err, " -6            - Force IPv6\n");
199
	BIO_printf(bio_err, " -host host     - use -connect instead\n");
200
	BIO_printf(bio_err, " -port port     - use -connect instead\n");
201
	BIO_printf(bio_err, " -connect host:port - who to connect to (default is %s:%s)\n", SSL_HOST_NAME, PORT_STR);
202
	BIO_printf(bio_err, " -proxy host:port - connect to http proxy\n");
203
204
	BIO_printf(bio_err, " -verify arg   - turn on peer certificate verification\n");
205
	BIO_printf(bio_err, " -cert arg     - certificate file to use, PEM format assumed\n");
206
	BIO_printf(bio_err, " -certform arg - certificate format (PEM or DER) PEM default\n");
207
	BIO_printf(bio_err, " -key arg      - Private key file to use, in cert file if\n");
208
	BIO_printf(bio_err, "                 not specified but cert file is.\n");
209
	BIO_printf(bio_err, " -keyform arg  - key format (PEM or DER) PEM default\n");
210
	BIO_printf(bio_err, " -pass arg     - private key file pass phrase source\n");
211
	BIO_printf(bio_err, " -CApath arg   - PEM format directory of CA's\n");
212
	BIO_printf(bio_err, " -CAfile arg   - PEM format file of CA's\n");
213
	BIO_printf(bio_err, " -reconnect    - Drop and re-make the connection with the same Session-ID\n");
214
	BIO_printf(bio_err, " -pause        - sleep(1) after each read(2) and write(2) system call\n");
215
	BIO_printf(bio_err, " -showcerts    - show all certificates in the chain\n");
216
	BIO_printf(bio_err, " -debug        - extra output\n");
217
	BIO_printf(bio_err, " -msg          - Show protocol messages\n");
218
	BIO_printf(bio_err, " -nbio_test    - more ssl protocol testing\n");
219
	BIO_printf(bio_err, " -state        - print the 'ssl' states\n");
220
	BIO_printf(bio_err, " -nbio         - Run with non-blocking IO\n");
221
	BIO_printf(bio_err, " -crlf         - convert LF from terminal into CRLF\n");
222
	BIO_printf(bio_err, " -quiet        - no s_client output\n");
223
	BIO_printf(bio_err, " -ign_eof      - ignore input eof (default when -quiet)\n");
224
	BIO_printf(bio_err, " -no_ign_eof   - don't ignore input eof\n");
225
	BIO_printf(bio_err, " -tls1_2       - just use TLSv1.2\n");
226
	BIO_printf(bio_err, " -tls1_1       - just use TLSv1.1\n");
227
	BIO_printf(bio_err, " -tls1         - just use TLSv1\n");
228
	BIO_printf(bio_err, " -dtls1        - just use DTLSv1\n");
229
	BIO_printf(bio_err, " -mtu          - set the link layer MTU\n");
230
	BIO_printf(bio_err, " -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
231
	BIO_printf(bio_err, " -bugs         - Switch on all SSL implementation bug workarounds\n");
232
	BIO_printf(bio_err, " -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
233
	BIO_printf(bio_err, "                 command to see what is available\n");
234
	BIO_printf(bio_err, " -starttls prot - use the STARTTLS command before starting TLS\n");
235
	BIO_printf(bio_err, "                 for those protocols that support it, where\n");
236
	BIO_printf(bio_err, "                 'prot' defines which one to assume.  Currently,\n");
237
	BIO_printf(bio_err, "                 only \"smtp\", \"lmtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
238
	BIO_printf(bio_err, "                 are supported.\n");
239
	BIO_printf(bio_err, " -xmpphost host - connect to this virtual host on the xmpp server\n");
240
	BIO_printf(bio_err, " -sess_out arg - file to write SSL session to\n");
241
	BIO_printf(bio_err, " -sess_in arg  - file to read SSL session from\n");
242
	BIO_printf(bio_err, " -servername host  - Set TLS extension servername in ClientHello\n");
243
	BIO_printf(bio_err, " -tlsextdebug      - hex dump of all TLS extensions received\n");
244
	BIO_printf(bio_err, " -status           - request certificate status from server\n");
245
	BIO_printf(bio_err, " -no_ticket        - disable use of RFC4507bis session tickets\n");
246
	BIO_printf(bio_err, " -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n");
247
	BIO_printf(bio_err, " -alpn arg         - enable ALPN extension, considering named protocols supported (comma-separated list)\n");
248
#ifndef OPENSSL_NO_SRTP
249
	BIO_printf(bio_err, " -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
250
#endif
251
	BIO_printf(bio_err, " -keymatexport label   - Export keying material using label\n");
252
	BIO_printf(bio_err, " -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
253
}
254
255
256
/* This is a context that we pass to callbacks */
257
typedef struct tlsextctx_st {
258
	BIO *biodebug;
259
	int ack;
260
} tlsextctx;
261
262
263
static int
264
ssl_servername_cb(SSL * s, int *ad, void *arg)
265
{
266
	tlsextctx *p = (tlsextctx *) arg;
267
	const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
268
	if (SSL_get_servername_type(s) != -1)
269
		p->ack = !SSL_session_reused(s) && hn != NULL;
270
	else
271
		BIO_printf(bio_err, "Can't use SSL_get_servername\n");
272
273
	return SSL_TLSEXT_ERR_OK;
274
}
275
276
#ifndef OPENSSL_NO_SRTP
277
char *srtp_profiles = NULL;
278
#endif
279
280
/* This the context that we pass to next_proto_cb */
281
typedef struct tlsextnextprotoctx_st {
282
	unsigned char *data;
283
	unsigned short len;
284
	int status;
285
} tlsextnextprotoctx;
286
287
static tlsextnextprotoctx next_proto;
288
289
static int
290
next_proto_cb(SSL * s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg)
291
{
292
	tlsextnextprotoctx *ctx = arg;
293
294
	if (!c_quiet) {
295
		/* We can assume that |in| is syntactically valid. */
296
		unsigned i;
297
		BIO_printf(bio_c_out, "Protocols advertised by server: ");
298
		for (i = 0; i < inlen;) {
299
			if (i)
300
				BIO_write(bio_c_out, ", ", 2);
301
			BIO_write(bio_c_out, &in[i + 1], in[i]);
302
			i += in[i] + 1;
303
		}
304
		BIO_write(bio_c_out, "\n", 1);
305
	}
306
	ctx->status = SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
307
	return SSL_TLSEXT_ERR_OK;
308
}
309
310
enum {
311
	PROTO_OFF = 0,
312
	PROTO_SMTP,
313
	PROTO_LMTP,
314
	PROTO_POP3,
315
	PROTO_IMAP,
316
	PROTO_FTP,
317
	PROTO_XMPP
318
};
319
320
int
321
s_client_main(int argc, char **argv)
322
{
323
	unsigned int off = 0, clr = 0;
324
	SSL *con = NULL;
325
	int s, k, state = 0, af = AF_UNSPEC;
326
	char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL;
327
	int cbuf_len, cbuf_off;
328
	int sbuf_len, sbuf_off;
329
	char *port = PORT_STR;
330
	int full_log = 1;
331
	char *host = SSL_HOST_NAME;
332
	char *xmpphost = NULL;
333
	char *proxy = NULL, *connect = NULL;
334
	char *cert_file = NULL, *key_file = NULL;
335
	int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
336
	char *passarg = NULL, *pass = NULL;
337
	X509 *cert = NULL;
338
	EVP_PKEY *key = NULL;
339
	char *CApath = NULL, *CAfile = NULL, *cipher = NULL;
340
	int reconnect = 0, badop = 0, verify = SSL_VERIFY_NONE, bugs = 0;
341
	int crlf = 0;
342
	int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
343
	SSL_CTX *ctx = NULL;
344
	int ret = 1, in_init = 1, i, nbio_test = 0;
345
	int starttls_proto = PROTO_OFF;
346
	int prexit = 0;
347
	X509_VERIFY_PARAM *vpm = NULL;
348
	int badarg = 0;
349
	const SSL_METHOD *meth = NULL;
350
	int socket_type = SOCK_STREAM;
351
	BIO *sbio;
352
	int mbuf_len = 0;
353
	struct timeval timeout;
354
	const char *errstr = NULL;
355
	char *servername = NULL;
356
	tlsextctx tlsextcbp =
357
	{NULL, 0};
358
	const char *next_proto_neg_in = NULL;
359
	const char *alpn_in = NULL;
360
	char *sess_in = NULL;
361
	char *sess_out = NULL;
362
	struct sockaddr peer;
363
	int peerlen = sizeof(peer);
364
	int enable_timeouts = 0;
365
	long socket_mtu = 0;
366
367
	if (single_execution) {
368
		if (pledge("stdio inet dns rpath wpath cpath tty", NULL) == -1) {
369
			perror("pledge");
370
			exit(1);
371
		}
372
	}
373
374
	meth = SSLv23_client_method();
375
376
	c_Pause = 0;
377
	c_quiet = 0;
378
	c_ign_eof = 0;
379
	c_debug = 0;
380
	c_msg = 0;
381
	c_showcerts = 0;
382
383
	if (((cbuf = malloc(BUFSIZZ)) == NULL) ||
384
	    ((sbuf = malloc(BUFSIZZ)) == NULL) ||
385
	    ((mbuf = malloc(BUFSIZZ + 1)) == NULL)) {	/* NUL byte */
386
		BIO_printf(bio_err, "out of memory\n");
387
		goto end;
388
	}
389
	verify_depth = 0;
390
	c_nbio = 0;
391
392
	argc--;
393
	argv++;
394
	while (argc >= 1) {
395
		if (strcmp(*argv, "-host") == 0) {
396
			if (--argc < 1)
397
				goto bad;
398
			host = *(++argv);
399
		} else if (strcmp(*argv, "-port") == 0) {
400
			if (--argc < 1)
401
				goto bad;
402
			port = *(++argv);
403
			if (port == NULL || *port == '\0')
404
				goto bad;
405
		} else if (strcmp(*argv, "-connect") == 0) {
406
			if (--argc < 1)
407
				goto bad;
408
			connect = *(++argv);
409
		} else if (strcmp(*argv, "-proxy") == 0) {
410
			if (--argc < 1)
411
				goto bad;
412
			proxy = *(++argv);
413
		} else if (strcmp(*argv,"-xmpphost") == 0) {
414
			if (--argc < 1)
415
				goto bad;
416
			xmpphost= *(++argv);
417
		} else if (strcmp(*argv, "-verify") == 0) {
418
			verify = SSL_VERIFY_PEER;
419
			if (--argc < 1)
420
				goto bad;
421
			verify_depth = strtonum(*(++argv), 0, INT_MAX, &errstr);
422
			if (errstr)
423
				goto bad;
424
			BIO_printf(bio_err, "verify depth is %d\n", verify_depth);
425
		} else if (strcmp(*argv, "-cert") == 0) {
426
			if (--argc < 1)
427
				goto bad;
428
			cert_file = *(++argv);
429
		} else if (strcmp(*argv, "-sess_out") == 0) {
430
			if (--argc < 1)
431
				goto bad;
432
			sess_out = *(++argv);
433
		} else if (strcmp(*argv, "-sess_in") == 0) {
434
			if (--argc < 1)
435
				goto bad;
436
			sess_in = *(++argv);
437
		} else if (strcmp(*argv, "-certform") == 0) {
438
			if (--argc < 1)
439
				goto bad;
440
			cert_format = str2fmt(*(++argv));
441
		} else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) {
442
			if (badarg)
443
				goto bad;
444
			continue;
445
		} else if (strcmp(*argv, "-verify_return_error") == 0)
446
			verify_return_error = 1;
447
		else if (strcmp(*argv, "-prexit") == 0)
448
			prexit = 1;
449
		else if (strcmp(*argv, "-crlf") == 0)
450
			crlf = 1;
451
		else if (strcmp(*argv, "-quiet") == 0) {
452
			c_quiet = 1;
453
			c_ign_eof = 1;
454
		} else if (strcmp(*argv, "-ign_eof") == 0)
455
			c_ign_eof = 1;
456
		else if (strcmp(*argv, "-no_ign_eof") == 0)
457
			c_ign_eof = 0;
458
		else if (strcmp(*argv, "-pause") == 0)
459
			c_Pause = 1;
460
		else if (strcmp(*argv, "-debug") == 0)
461
			c_debug = 1;
462
		else if (strcmp(*argv, "-tlsextdebug") == 0)
463
			c_tlsextdebug = 1;
464
		else if (strcmp(*argv, "-status") == 0)
465
			c_status_req = 1;
466
		else if (strcmp(*argv, "-msg") == 0)
467
			c_msg = 1;
468
		else if (strcmp(*argv, "-showcerts") == 0)
469
			c_showcerts = 1;
470
		else if (strcmp(*argv, "-nbio_test") == 0)
471
			nbio_test = 1;
472
		else if (strcmp(*argv, "-state") == 0)
473
			state = 1;
474
		else if (strcmp(*argv, "-tls1_2") == 0)
475
			meth = TLSv1_2_client_method();
476
		else if (strcmp(*argv, "-tls1_1") == 0)
477
			meth = TLSv1_1_client_method();
478
		else if (strcmp(*argv, "-tls1") == 0)
479
			meth = TLSv1_client_method();
480
#ifndef OPENSSL_NO_DTLS1
481
		else if (strcmp(*argv, "-dtls1") == 0) {
482
			meth = DTLSv1_client_method();
483
			socket_type = SOCK_DGRAM;
484
		} else if (strcmp(*argv, "-timeout") == 0)
485
			enable_timeouts = 1;
486
		else if (strcmp(*argv, "-mtu") == 0) {
487
			if (--argc < 1)
488
				goto bad;
489
			socket_mtu = strtonum(*(++argv), 0, LONG_MAX, &errstr);
490
			if (errstr)
491
				goto bad;
492
		}
493
#endif
494
		else if (strcmp(*argv, "-bugs") == 0)
495
			bugs = 1;
496
		else if (strcmp(*argv, "-keyform") == 0) {
497
			if (--argc < 1)
498
				goto bad;
499
			key_format = str2fmt(*(++argv));
500
		} else if (strcmp(*argv, "-pass") == 0) {
501
			if (--argc < 1)
502
				goto bad;
503
			passarg = *(++argv);
504
		} else if (strcmp(*argv, "-key") == 0) {
505
			if (--argc < 1)
506
				goto bad;
507
			key_file = *(++argv);
508
		} else if (strcmp(*argv, "-reconnect") == 0) {
509
			reconnect = 5;
510
		} else if (strcmp(*argv, "-CApath") == 0) {
511
			if (--argc < 1)
512
				goto bad;
513
			CApath = *(++argv);
514
		} else if (strcmp(*argv, "-CAfile") == 0) {
515
			if (--argc < 1)
516
				goto bad;
517
			CAfile = *(++argv);
518
		} else if (strcmp(*argv, "-no_tls1_2") == 0)
519
			off |= SSL_OP_NO_TLSv1_2;
520
		else if (strcmp(*argv, "-no_tls1_1") == 0)
521
			off |= SSL_OP_NO_TLSv1_1;
522
		else if (strcmp(*argv, "-no_tls1") == 0)
523
			off |= SSL_OP_NO_TLSv1;
524
		else if (strcmp(*argv, "-no_ssl3") == 0)
525
			off |= SSL_OP_NO_SSLv3;
526
		else if (strcmp(*argv, "-no_ssl2") == 0)
527
			off |= SSL_OP_NO_SSLv2;
528
		else if (strcmp(*argv, "-no_comp") == 0) {
529
			off |= SSL_OP_NO_COMPRESSION;
530
		}
531
		else if (strcmp(*argv, "-no_ticket") == 0) {
532
			off |= SSL_OP_NO_TICKET;
533
		}
534
		else if (strcmp(*argv, "-nextprotoneg") == 0) {
535
			if (--argc < 1)
536
				goto bad;
537
			next_proto_neg_in = *(++argv);
538
		}
539
		else if (strcmp(*argv, "-alpn") == 0) {
540
			if (--argc < 1)
541
				goto bad;
542
			alpn_in = *(++argv);
543
		} else if (strcmp(*argv, "-serverpref") == 0)
544
			off |= SSL_OP_CIPHER_SERVER_PREFERENCE;
545
		else if (strcmp(*argv, "-legacy_renegotiation") == 0)
546
			; /* no-op */
547
		else if (strcmp(*argv, "-legacy_server_connect") == 0) {
548
			off |= SSL_OP_LEGACY_SERVER_CONNECT;
549
		} else if (strcmp(*argv, "-no_legacy_server_connect") == 0) {
550
			clr |= SSL_OP_LEGACY_SERVER_CONNECT;
551
		} else if (strcmp(*argv, "-cipher") == 0) {
552
			if (--argc < 1)
553
				goto bad;
554
			cipher = *(++argv);
555
		}
556
		else if (strcmp(*argv, "-nbio") == 0) {
557
			c_nbio = 1;
558
		}
559
		else if (strcmp(*argv, "-starttls") == 0) {
560
			if (--argc < 1)
561
				goto bad;
562
			++argv;
563
			if (strcmp(*argv, "smtp") == 0)
564
				starttls_proto = PROTO_SMTP;
565
			else if (strcmp(*argv, "lmtp") == 0)
566
				starttls_proto = PROTO_LMTP;
567
			else if (strcmp(*argv, "pop3") == 0)
568
				starttls_proto = PROTO_POP3;
569
			else if (strcmp(*argv, "imap") == 0)
570
				starttls_proto = PROTO_IMAP;
571
			else if (strcmp(*argv, "ftp") == 0)
572
				starttls_proto = PROTO_FTP;
573
			else if (strcmp(*argv, "xmpp") == 0)
574
				starttls_proto = PROTO_XMPP;
575
			else
576
				goto bad;
577
		}
578
		else if (strcmp(*argv, "-4") == 0) {
579
			af = AF_INET;
580
		} else if (strcmp(*argv, "-6") == 0) {
581
			af = AF_INET6;
582
		}
583
		else if (strcmp(*argv, "-servername") == 0) {
584
			if (--argc < 1)
585
				goto bad;
586
			servername = *(++argv);
587
			/* meth=TLSv1_client_method(); */
588
		}
589
#ifndef OPENSSL_NO_SRTP
590
		else if (strcmp(*argv, "-use_srtp") == 0) {
591
			if (--argc < 1)
592
				goto bad;
593
			srtp_profiles = *(++argv);
594
		}
595
#endif
596
		else if (strcmp(*argv, "-keymatexport") == 0) {
597
			if (--argc < 1)
598
				goto bad;
599
			keymatexportlabel = *(++argv);
600
		} else if (strcmp(*argv, "-keymatexportlen") == 0) {
601
			if (--argc < 1)
602
				goto bad;
603
			keymatexportlen = strtonum(*(++argv), 1, INT_MAX, &errstr);
604
			if (errstr)
605
				goto bad;
606
		} else {
607
			BIO_printf(bio_err, "unknown option %s\n", *argv);
608
			badop = 1;
609
			break;
610
		}
611
		argc--;
612
		argv++;
613
	}
614
	if (proxy != NULL) {
615
		if (!extract_host_port(proxy, &host, NULL, &port))
616
			goto bad;
617
		if (connect == NULL)
618
			connect = SSL_HOST_NAME;
619
	} else if (connect != NULL) {
620
		if (!extract_host_port(connect, &host, NULL, &port))
621
			goto bad;
622
	}
623
	if (badop) {
624
bad:
625
		if (errstr)
626
			BIO_printf(bio_err, "invalid argument %s: %s\n",
627
			    *argv, errstr);
628
		else
629
			sc_usage();
630
		goto end;
631
	}
632
633
	next_proto.status = -1;
634
	if (next_proto_neg_in) {
635
		next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
636
		if (next_proto.data == NULL) {
637
			BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
638
			goto end;
639
		}
640
	} else
641
		next_proto.data = NULL;
642
643
	if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
644
		BIO_printf(bio_err, "Error getting password\n");
645
		goto end;
646
	}
647
	if (key_file == NULL)
648
		key_file = cert_file;
649
650
651
	if (key_file) {
652
653
		key = load_key(bio_err, key_file, key_format, 0, pass,
654
		    "client certificate private key file");
655
		if (!key) {
656
			ERR_print_errors(bio_err);
657
			goto end;
658
		}
659
	}
660
	if (cert_file) {
661
		cert = load_cert(bio_err, cert_file, cert_format,
662
		    NULL, "client certificate file");
663
664
		if (!cert) {
665
			ERR_print_errors(bio_err);
666
			goto end;
667
		}
668
	}
669
	if (bio_c_out == NULL) {
670
		if (c_quiet && !c_debug && !c_msg) {
671
			bio_c_out = BIO_new(BIO_s_null());
672
		} else {
673
			if (bio_c_out == NULL)
674
				bio_c_out = BIO_new_fp(stdout, BIO_NOCLOSE);
675
		}
676
	}
677
678
	ctx = SSL_CTX_new(meth);
679
	if (ctx == NULL) {
680
		ERR_print_errors(bio_err);
681
		goto end;
682
	}
683
	if (vpm)
684
		SSL_CTX_set1_param(ctx, vpm);
685
686
#ifndef OPENSSL_NO_SRTP
687
	if (srtp_profiles != NULL)
688
		SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
689
#endif
690
	if (bugs)
691
		SSL_CTX_set_options(ctx, SSL_OP_ALL | off);
692
	else
693
		SSL_CTX_set_options(ctx, off);
694
695
	if (clr)
696
		SSL_CTX_clear_options(ctx, clr);
697
	/*
698
	 * DTLS: partial reads end up discarding unread UDP bytes :-( Setting
699
	 * read ahead solves this problem.
700
	 */
701
	if (socket_type == SOCK_DGRAM)
702
		SSL_CTX_set_read_ahead(ctx, 1);
703
704
	if (next_proto.data)
705
		SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
706
	if (alpn_in) {
707
		unsigned short alpn_len;
708
		unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
709
710
		if (alpn == NULL) {
711
			BIO_printf(bio_err, "Error parsing -alpn argument\n");
712
			goto end;
713
		}
714
		SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len);
715
		free(alpn);
716
	}
717
718
	if (state)
719
		SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
720
	if (cipher != NULL)
721
		if (!SSL_CTX_set_cipher_list(ctx, cipher)) {
722
			BIO_printf(bio_err, "error setting cipher list\n");
723
			ERR_print_errors(bio_err);
724
			goto end;
725
		}
726
727
	SSL_CTX_set_verify(ctx, verify, verify_callback);
728
	if (!set_cert_key_stuff(ctx, cert, key))
729
		goto end;
730
731
	if ((CAfile || CApath)
732
	    && !SSL_CTX_load_verify_locations(ctx, CAfile, CApath))
733
		ERR_print_errors(bio_err);
734
735
	if (!SSL_CTX_set_default_verify_paths(ctx))
736
		ERR_print_errors(bio_err);
737
738
	if (servername != NULL) {
739
		tlsextcbp.biodebug = bio_err;
740
		SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
741
		SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
742
	}
743
744
	con = SSL_new(ctx);
745
	if (sess_in) {
746
		SSL_SESSION *sess;
747
		BIO *stmp = BIO_new_file(sess_in, "r");
748
		if (!stmp) {
749
			BIO_printf(bio_err, "Can't open session file %s\n",
750
			    sess_in);
751
			ERR_print_errors(bio_err);
752
			goto end;
753
		}
754
		sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
755
		BIO_free(stmp);
756
		if (!sess) {
757
			BIO_printf(bio_err, "Can't open session file %s\n",
758
			    sess_in);
759
			ERR_print_errors(bio_err);
760
			goto end;
761
		}
762
		SSL_set_session(con, sess);
763
		SSL_SESSION_free(sess);
764
	}
765
	if (servername != NULL) {
766
		if (!SSL_set_tlsext_host_name(con, servername)) {
767
			BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
768
			ERR_print_errors(bio_err);
769
			goto end;
770
		}
771
	}
772
/*	SSL_set_cipher_list(con,"RC4-MD5"); */
773
774
re_start:
775
776
	if (init_client(&s, host, port, socket_type, af) == 0) {
777
		BIO_printf(bio_err, "connect:errno=%d\n", errno);
778
		goto end;
779
	}
780
	BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s);
781
782
	if (c_nbio) {
783
		if (!c_quiet)
784
			BIO_printf(bio_c_out, "turning on non blocking io\n");
785
		if (!BIO_socket_nbio(s, 1)) {
786
			ERR_print_errors(bio_err);
787
			goto end;
788
		}
789
	}
790
	if (c_Pause & 0x01)
791
		SSL_set_debug(con, 1);
792
793
	if (SSL_version(con) == DTLS1_VERSION) {
794
795
		sbio = BIO_new_dgram(s, BIO_NOCLOSE);
796
		if (getsockname(s, &peer, (void *) &peerlen) < 0) {
797
			BIO_printf(bio_err, "getsockname:errno=%d\n",
798
			    errno);
799
			shutdown(s, SHUT_RD);
800
			close(s);
801
			goto end;
802
		}
803
		(void) BIO_ctrl_set_connected(sbio, 1, &peer);
804
805
		if (enable_timeouts) {
806
			timeout.tv_sec = 0;
807
			timeout.tv_usec = DGRAM_RCV_TIMEOUT;
808
			BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
809
810
			timeout.tv_sec = 0;
811
			timeout.tv_usec = DGRAM_SND_TIMEOUT;
812
			BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
813
		}
814
		if (socket_mtu > 28) {
815
			SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
816
			SSL_set_mtu(con, socket_mtu - 28);
817
		} else
818
			/* want to do MTU discovery */
819
			BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
820
	} else
821
		sbio = BIO_new_socket(s, BIO_NOCLOSE);
822
823
	if (nbio_test) {
824
		BIO *test;
825
826
		test = BIO_new(BIO_f_nbio_test());
827
		sbio = BIO_push(test, sbio);
828
	}
829
	if (c_debug) {
830
		SSL_set_debug(con, 1);
831
		BIO_set_callback(sbio, bio_dump_callback);
832
		BIO_set_callback_arg(sbio, (char *) bio_c_out);
833
	}
834
	if (c_msg) {
835
		SSL_set_msg_callback(con, msg_cb);
836
		SSL_set_msg_callback_arg(con, bio_c_out);
837
	}
838
	if (c_tlsextdebug) {
839
		SSL_set_tlsext_debug_callback(con, tlsext_cb);
840
		SSL_set_tlsext_debug_arg(con, bio_c_out);
841
	}
842
	if (c_status_req) {
843
		SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
844
		SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
845
		SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
846
	}
847
848
	SSL_set_bio(con, sbio, sbio);
849
	SSL_set_connect_state(con);
850
851
	/* ok, lets connect */
852
	read_tty = 1;
853
	write_tty = 0;
854
	tty_on = 0;
855
	read_ssl = 1;
856
	write_ssl = 1;
857
858
	cbuf_len = 0;
859
	cbuf_off = 0;
860
	sbuf_len = 0;
861
	sbuf_off = 0;
862
863
	/* This is an ugly hack that does a lot of assumptions */
864
	/*
865
	 * We do have to handle multi-line responses which may come in a
866
	 * single packet or not. We therefore have to use BIO_gets() which
867
	 * does need a buffering BIO. So during the initial chitchat we do
868
	 * push a buffering BIO into the chain that is removed again later on
869
	 * to not disturb the rest of the s_client operation.
870
	 */
871
	if (starttls_proto == PROTO_SMTP || starttls_proto == PROTO_LMTP) {
872
		int foundit = 0;
873
		BIO *fbio = BIO_new(BIO_f_buffer());
874
		BIO_push(fbio, sbio);
875
		/* wait for multi-line response to end from SMTP */
876
		do {
877
			mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
878
		}
879
		while (mbuf_len > 3 && mbuf[3] == '-');
880
		/* STARTTLS command requires EHLO... */
881
		BIO_printf(fbio, "%cHLO openssl.client.net\r\n",
882
			   starttls_proto == PROTO_SMTP ? 'E' : 'L');
883
		(void) BIO_flush(fbio);
884
		/* wait for multi-line response to end EHLO SMTP response */
885
		do {
886
			mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
887
			if (strstr(mbuf, "STARTTLS"))
888
				foundit = 1;
889
		}
890
		while (mbuf_len > 3 && mbuf[3] == '-');
891
		(void) BIO_flush(fbio);
892
		BIO_pop(fbio);
893
		BIO_free(fbio);
894
		if (!foundit)
895
			BIO_printf(bio_err,
896
			    "didn't found starttls in server response,"
897
			    " try anyway...\n");
898
		BIO_printf(sbio, "STARTTLS\r\n");
899
		BIO_read(sbio, sbuf, BUFSIZZ);
900
	} else if (starttls_proto == PROTO_POP3) {
901
		mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
902
		if (mbuf_len == -1) {
903
			BIO_printf(bio_err, "BIO_read failed\n");
904
			goto end;
905
		}
906
		BIO_printf(sbio, "STLS\r\n");
907
		BIO_read(sbio, sbuf, BUFSIZZ);
908
	} else if (starttls_proto == PROTO_IMAP) {
909
		int foundit = 0;
910
		BIO *fbio = BIO_new(BIO_f_buffer());
911
		BIO_push(fbio, sbio);
912
		BIO_gets(fbio, mbuf, BUFSIZZ);
913
		/* STARTTLS command requires CAPABILITY... */
914
		BIO_printf(fbio, ". CAPABILITY\r\n");
915
		(void) BIO_flush(fbio);
916
		/* wait for multi-line CAPABILITY response */
917
		do {
918
			mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
919
			if (strstr(mbuf, "STARTTLS"))
920
				foundit = 1;
921
		}
922
		while (mbuf_len > 3 && mbuf[0] != '.');
923
		(void) BIO_flush(fbio);
924
		BIO_pop(fbio);
925
		BIO_free(fbio);
926
		if (!foundit)
927
			BIO_printf(bio_err,
928
			    "didn't found STARTTLS in server response,"
929
			    " try anyway...\n");
930
		BIO_printf(sbio, ". STARTTLS\r\n");
931
		BIO_read(sbio, sbuf, BUFSIZZ);
932
	} else if (starttls_proto == PROTO_FTP) {
933
		BIO *fbio = BIO_new(BIO_f_buffer());
934
		BIO_push(fbio, sbio);
935
		/* wait for multi-line response to end from FTP */
936
		do {
937
			mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
938
		}
939
		while (mbuf_len > 3 && mbuf[3] == '-');
940
		(void) BIO_flush(fbio);
941
		BIO_pop(fbio);
942
		BIO_free(fbio);
943
		BIO_printf(sbio, "AUTH TLS\r\n");
944
		BIO_read(sbio, sbuf, BUFSIZZ);
945
	} else if (starttls_proto == PROTO_XMPP) {
946
		int seen = 0;
947
		BIO_printf(sbio, "<stream:stream "
948
		    "xmlns:stream='http://etherx.jabber.org/streams' "
949
		    "xmlns='jabber:client' to='%s' version='1.0'>", xmpphost ? xmpphost : host);
950
		seen = BIO_read(sbio, mbuf, BUFSIZZ);
951
952
		if (seen <= 0)
953
			goto shut;
954
955
		mbuf[seen] = 0;
956
		while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'") &&
957
		       !strstr(mbuf, "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\"")) {
958
			seen = BIO_read(sbio, mbuf, BUFSIZZ);
959
960
			if (seen <= 0)
961
				goto shut;
962
963
			mbuf[seen] = 0;
964
		}
965
		BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
966
		seen = BIO_read(sbio, sbuf, BUFSIZZ);
967
		sbuf[seen] = 0;
968
		if (!strstr(sbuf, "<proceed"))
969
			goto shut;
970
		mbuf[0] = 0;
971
	} else if (proxy != NULL) {
972
		BIO_printf(sbio, "CONNECT %s HTTP/1.0\r\n\r\n", connect);
973
		mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
974
		if (mbuf_len == -1) {
975
			BIO_printf(bio_err, "BIO_read failed\n");
976
			goto end;
977
		}
978
	}
979
	for (;;) {
980
		struct pollfd pfd[3];	/* stdin, stdout, socket */
981
		int ptimeout = -1;
982
983
		if ((SSL_version(con) == DTLS1_VERSION) &&
984
		    DTLSv1_get_timeout(con, &timeout))
985
			ptimeout = timeout.tv_sec * 1000 + timeout.tv_usec / 1000;
986
987
		if (SSL_in_init(con) && !SSL_total_renegotiations(con)) {
988
			in_init = 1;
989
			tty_on = 0;
990
		} else {
991
			tty_on = 1;
992
			if (in_init) {
993
				in_init = 0;
994
				if (sess_out) {
995
					BIO *stmp = BIO_new_file(sess_out, "w");
996
					if (stmp) {
997
						PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
998
						BIO_free(stmp);
999
					} else
1000
						BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1001
				}
1002
				print_stuff(bio_c_out, con, full_log);
1003
				if (full_log > 0)
1004
					full_log--;
1005
1006
				if (starttls_proto) {
1007
					BIO_write(bio_err, mbuf, mbuf_len);
1008
					/* We don't need to know any more */
1009
					starttls_proto = PROTO_OFF;
1010
				}
1011
				if (reconnect) {
1012
					reconnect--;
1013
					BIO_printf(bio_c_out, "drop connection and then reconnect\n");
1014
					SSL_shutdown(con);
1015
					SSL_set_connect_state(con);
1016
					shutdown(SSL_get_fd(con), SHUT_RD);
1017
					close(SSL_get_fd(con));
1018
					goto re_start;
1019
				}
1020
			}
1021
		}
1022
1023
		ssl_pending = read_ssl && SSL_pending(con);
1024
1025
		pfd[0].fd = -1;
1026
		pfd[1].fd = -1;
1027
		if (!ssl_pending) {
1028
			if (tty_on) {
1029
				if (read_tty) {
1030
					pfd[0].fd = fileno(stdin);
1031
					pfd[0].events = POLLIN;
1032
				}
1033
				if (write_tty) {
1034
					pfd[1].fd = fileno(stdout);
1035
					pfd[1].events = POLLOUT;
1036
				}
1037
			}
1038
1039
			pfd[2].fd = SSL_get_fd(con);
1040
			pfd[2].events = 0;
1041
			if (read_ssl)
1042
				pfd[2].events |= POLLIN;
1043
			if (write_ssl)
1044
				pfd[2].events |= POLLOUT;
1045
1046
/*			printf("mode tty(%d %d%d) ssl(%d%d)\n",
1047
				tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1048
1049
			i = poll(pfd, 3, ptimeout);
1050
			if (i < 0) {
1051
				BIO_printf(bio_err, "bad select %d\n",
1052
				    errno);
1053
				goto shut;
1054
				/* goto end; */
1055
			}
1056
		}
1057
		if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0) {
1058
			BIO_printf(bio_err, "TIMEOUT occured\n");
1059
		}
1060
		if (!ssl_pending && (pfd[2].revents & (POLLOUT|POLLERR|POLLNVAL))) {
1061
			if (pfd[2].revents & (POLLERR|POLLNVAL)) {
1062
				BIO_printf(bio_err, "poll error");
1063
				goto shut;
1064
			}
1065
			k = SSL_write(con, &(cbuf[cbuf_off]),
1066
			    (unsigned int) cbuf_len);
1067
			switch (SSL_get_error(con, k)) {
1068
			case SSL_ERROR_NONE:
1069
				cbuf_off += k;
1070
				cbuf_len -= k;
1071
				if (k <= 0)
1072
					goto end;
1073
				/* we have done a  write(con,NULL,0); */
1074
				if (cbuf_len <= 0) {
1075
					read_tty = 1;
1076
					write_ssl = 0;
1077
				} else {	/* if (cbuf_len > 0) */
1078
					read_tty = 0;
1079
					write_ssl = 1;
1080
				}
1081
				break;
1082
			case SSL_ERROR_WANT_WRITE:
1083
				BIO_printf(bio_c_out, "write W BLOCK\n");
1084
				write_ssl = 1;
1085
				read_tty = 0;
1086
				break;
1087
			case SSL_ERROR_WANT_READ:
1088
				BIO_printf(bio_c_out, "write R BLOCK\n");
1089
				write_tty = 0;
1090
				read_ssl = 1;
1091
				write_ssl = 0;
1092
				break;
1093
			case SSL_ERROR_WANT_X509_LOOKUP:
1094
				BIO_printf(bio_c_out, "write X BLOCK\n");
1095
				break;
1096
			case SSL_ERROR_ZERO_RETURN:
1097
				if (cbuf_len != 0) {
1098
					BIO_printf(bio_c_out, "shutdown\n");
1099
					ret = 0;
1100
					goto shut;
1101
				} else {
1102
					read_tty = 1;
1103
					write_ssl = 0;
1104
					break;
1105
				}
1106
1107
			case SSL_ERROR_SYSCALL:
1108
				if ((k != 0) || (cbuf_len != 0)) {
1109
					BIO_printf(bio_err, "write:errno=%d\n",
1110
					    errno);
1111
					goto shut;
1112
				} else {
1113
					read_tty = 1;
1114
					write_ssl = 0;
1115
				}
1116
				break;
1117
			case SSL_ERROR_SSL:
1118
				ERR_print_errors(bio_err);
1119
				goto shut;
1120
			}
1121
		} else if (!ssl_pending &&
1122
		    (pfd[1].revents & (POLLOUT|POLLERR|POLLNVAL))) {
1123
			if (pfd[1].revents & (POLLERR|POLLNVAL)) {
1124
				BIO_printf(bio_err, "poll error");
1125
				goto shut;
1126
			}
1127
			i = write(fileno(stdout), &(sbuf[sbuf_off]), sbuf_len);
1128
1129
			if (i <= 0) {
1130
				BIO_printf(bio_c_out, "DONE\n");
1131
				ret = 0;
1132
				goto shut;
1133
				/* goto end; */
1134
			}
1135
			sbuf_len -= i;
1136
			sbuf_off += i;
1137
			if (sbuf_len <= 0) {
1138
				read_ssl = 1;
1139
				write_tty = 0;
1140
			}
1141
		} else if (ssl_pending || (pfd[2].revents & (POLLIN|POLLHUP))) {
1142
#ifdef RENEG
1143
			{
1144
				static int iiii;
1145
				if (++iiii == 52) {
1146
					SSL_renegotiate(con);
1147
					iiii = 0;
1148
				}
1149
			}
1150
#endif
1151
			k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
1152
1153
			switch (SSL_get_error(con, k)) {
1154
			case SSL_ERROR_NONE:
1155
				if (k <= 0)
1156
					goto end;
1157
				sbuf_off = 0;
1158
				sbuf_len = k;
1159
1160
				read_ssl = 0;
1161
				write_tty = 1;
1162
				break;
1163
			case SSL_ERROR_WANT_WRITE:
1164
				BIO_printf(bio_c_out, "read W BLOCK\n");
1165
				write_ssl = 1;
1166
				read_tty = 0;
1167
				break;
1168
			case SSL_ERROR_WANT_READ:
1169
				BIO_printf(bio_c_out, "read R BLOCK\n");
1170
				write_tty = 0;
1171
				read_ssl = 1;
1172
				if ((read_tty == 0) && (write_ssl == 0))
1173
					write_ssl = 1;
1174
				break;
1175
			case SSL_ERROR_WANT_X509_LOOKUP:
1176
				BIO_printf(bio_c_out, "read X BLOCK\n");
1177
				break;
1178
			case SSL_ERROR_SYSCALL:
1179
				ret = errno;
1180
				BIO_printf(bio_err, "read:errno=%d\n", ret);
1181
				goto shut;
1182
			case SSL_ERROR_ZERO_RETURN:
1183
				BIO_printf(bio_c_out, "closed\n");
1184
				ret = 0;
1185
				goto shut;
1186
			case SSL_ERROR_SSL:
1187
				ERR_print_errors(bio_err);
1188
				goto shut;
1189
				/* break; */
1190
			}
1191
		} else if (pfd[0].revents) {
1192
			if (pfd[0].revents & (POLLERR|POLLNVAL)) {
1193
				BIO_printf(bio_err, "poll error");
1194
				goto shut;
1195
			}
1196
			if (crlf) {
1197
				int j, lf_num;
1198
1199
				i = read(fileno(stdin), cbuf, BUFSIZZ / 2);
1200
				lf_num = 0;
1201
				/* both loops are skipped when i <= 0 */
1202
				for (j = 0; j < i; j++)
1203
					if (cbuf[j] == '\n')
1204
						lf_num++;
1205
				for (j = i - 1; j >= 0; j--) {
1206
					cbuf[j + lf_num] = cbuf[j];
1207
					if (cbuf[j] == '\n') {
1208
						lf_num--;
1209
						i++;
1210
						cbuf[j + lf_num] = '\r';
1211
					}
1212
				}
1213
				assert(lf_num == 0);
1214
			} else
1215
				i = read(fileno(stdin), cbuf, BUFSIZZ);
1216
1217
			if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q'))) {
1218
				BIO_printf(bio_err, "DONE\n");
1219
				ret = 0;
1220
				goto shut;
1221
			}
1222
			if ((!c_ign_eof) && (cbuf[0] == 'R')) {
1223
				BIO_printf(bio_err, "RENEGOTIATING\n");
1224
				SSL_renegotiate(con);
1225
				cbuf_len = 0;
1226
			} else {
1227
				cbuf_len = i;
1228
				cbuf_off = 0;
1229
			}
1230
1231
			write_ssl = 1;
1232
			read_tty = 0;
1233
		}
1234
	}
1235
1236
	ret = 0;
1237
shut:
1238
	if (in_init)
1239
		print_stuff(bio_c_out, con, full_log);
1240
	SSL_shutdown(con);
1241
	shutdown(SSL_get_fd(con), SHUT_RD);
1242
	close(SSL_get_fd(con));
1243
end:
1244
	if (con != NULL) {
1245
		if (prexit != 0)
1246
			print_stuff(bio_c_out, con, 1);
1247
		SSL_free(con);
1248
	}
1249
	free(next_proto.data);
1250
	if (ctx != NULL)
1251
		SSL_CTX_free(ctx);
1252
	if (cert)
1253
		X509_free(cert);
1254
	if (key)
1255
		EVP_PKEY_free(key);
1256
	free(pass);
1257
	if (vpm)
1258
		X509_VERIFY_PARAM_free(vpm);
1259
	if (cbuf != NULL) {
1260
		explicit_bzero(cbuf, BUFSIZZ);
1261
		free(cbuf);
1262
	}
1263
	if (sbuf != NULL) {
1264
		explicit_bzero(sbuf, BUFSIZZ);
1265
		free(sbuf);
1266
	}
1267
	if (mbuf != NULL) {
1268
		explicit_bzero(mbuf, BUFSIZZ);
1269
		free(mbuf);
1270
	}
1271
	if (bio_c_out != NULL) {
1272
		BIO_free(bio_c_out);
1273
		bio_c_out = NULL;
1274
	}
1275
1276
	return (ret);
1277
}
1278
1279
1280
static void
1281
print_stuff(BIO * bio, SSL * s, int full)
1282
{
1283
	X509 *peer = NULL;
1284
	char *p;
1285
	static const char *space = "                ";
1286
	char buf[BUFSIZ];
1287
	STACK_OF(X509) * sk;
1288
	STACK_OF(X509_NAME) * sk2;
1289
	const SSL_CIPHER *c;
1290
	X509_NAME *xn;
1291
	int j, i;
1292
	unsigned char *exportedkeymat;
1293
1294
	if (full) {
1295
		int got_a_chain = 0;
1296
1297
		sk = SSL_get_peer_cert_chain(s);
1298
		if (sk != NULL) {
1299
			got_a_chain = 1;	/* we don't have it for SSL2
1300
						 * (yet) */
1301
1302
			BIO_printf(bio, "---\nCertificate chain\n");
1303
			for (i = 0; i < sk_X509_num(sk); i++) {
1304
				X509_NAME_oneline(X509_get_subject_name(
1305
					sk_X509_value(sk, i)), buf, sizeof buf);
1306
				BIO_printf(bio, "%2d s:%s\n", i, buf);
1307
				X509_NAME_oneline(X509_get_issuer_name(
1308
					sk_X509_value(sk, i)), buf, sizeof buf);
1309
				BIO_printf(bio, "   i:%s\n", buf);
1310
				if (c_showcerts)
1311
					PEM_write_bio_X509(bio, sk_X509_value(sk, i));
1312
			}
1313
		}
1314
		BIO_printf(bio, "---\n");
1315
		peer = SSL_get_peer_certificate(s);
1316
		if (peer != NULL) {
1317
			BIO_printf(bio, "Server certificate\n");
1318
			if (!(c_showcerts && got_a_chain))	/* Redundant if we
1319
								 * showed the whole
1320
								 * chain */
1321
				PEM_write_bio_X509(bio, peer);
1322
			X509_NAME_oneline(X509_get_subject_name(peer),
1323
			    buf, sizeof buf);
1324
			BIO_printf(bio, "subject=%s\n", buf);
1325
			X509_NAME_oneline(X509_get_issuer_name(peer),
1326
			    buf, sizeof buf);
1327
			BIO_printf(bio, "issuer=%s\n", buf);
1328
		} else
1329
			BIO_printf(bio, "no peer certificate available\n");
1330
1331
		sk2 = SSL_get_client_CA_list(s);
1332
		if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0)) {
1333
			BIO_printf(bio, "---\nAcceptable client certificate CA names\n");
1334
			for (i = 0; i < sk_X509_NAME_num(sk2); i++) {
1335
				xn = sk_X509_NAME_value(sk2, i);
1336
				X509_NAME_oneline(xn, buf, sizeof(buf));
1337
				BIO_write(bio, buf, strlen(buf));
1338
				BIO_write(bio, "\n", 1);
1339
			}
1340
		} else {
1341
			BIO_printf(bio, "---\nNo client certificate CA names sent\n");
1342
		}
1343
		p = SSL_get_shared_ciphers(s, buf, sizeof buf);
1344
		if (p != NULL) {
1345
			/*
1346
			 * This works only for SSL 2.  In later protocol
1347
			 * versions, the client does not know what other
1348
			 * ciphers (in addition to the one to be used in the
1349
			 * current connection) the server supports.
1350
			 */
1351
1352
			BIO_printf(bio, "---\nCiphers common between both SSL endpoints:\n");
1353
			j = i = 0;
1354
			while (*p) {
1355
				if (*p == ':') {
1356
					BIO_write(bio, space, 15 - j % 25);
1357
					i++;
1358
					j = 0;
1359
					BIO_write(bio, ((i % 3) ? " " : "\n"), 1);
1360
				} else {
1361
					BIO_write(bio, p, 1);
1362
					j++;
1363
				}
1364
				p++;
1365
			}
1366
			BIO_write(bio, "\n", 1);
1367
		}
1368
		BIO_printf(bio, "---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1369
		    BIO_number_read(SSL_get_rbio(s)),
1370
		    BIO_number_written(SSL_get_wbio(s)));
1371
	}
1372
	BIO_printf(bio, (SSL_cache_hit(s) ? "---\nReused, " : "---\nNew, "));
1373
	c = SSL_get_current_cipher(s);
1374
	BIO_printf(bio, "%s, Cipher is %s\n",
1375
	    SSL_CIPHER_get_version(c),
1376
	    SSL_CIPHER_get_name(c));
1377
	if (peer != NULL) {
1378
		EVP_PKEY *pktmp;
1379
		pktmp = X509_get_pubkey(peer);
1380
		BIO_printf(bio, "Server public key is %d bit\n",
1381
		    EVP_PKEY_bits(pktmp));
1382
		EVP_PKEY_free(pktmp);
1383
	}
1384
	BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
1385
	    SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
1386
1387
	/* Compression is not supported and will always be none. */
1388
	BIO_printf(bio, "Compression: NONE\n");
1389
	BIO_printf(bio, "Expansion: NONE\n");
1390
1391
#ifdef SSL_DEBUG
1392
	{
1393
		/* Print out local port of connection: useful for debugging */
1394
		int sock;
1395
		struct sockaddr_in ladd;
1396
		socklen_t ladd_size = sizeof(ladd);
1397
		sock = SSL_get_fd(s);
1398
		getsockname(sock, (struct sockaddr *) & ladd, &ladd_size);
1399
		BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port));
1400
	}
1401
#endif
1402
1403
	if (next_proto.status != -1) {
1404
		const unsigned char *proto;
1405
		unsigned int proto_len;
1406
		SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
1407
		BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
1408
		BIO_write(bio, proto, proto_len);
1409
		BIO_write(bio, "\n", 1);
1410
	}
1411
	{
1412
		const unsigned char *proto;
1413
		unsigned int proto_len;
1414
		SSL_get0_alpn_selected(s, &proto, &proto_len);
1415
		if (proto_len > 0) {
1416
			BIO_printf(bio, "ALPN protocol: ");
1417
			BIO_write(bio, proto, proto_len);
1418
			BIO_write(bio, "\n", 1);
1419
		} else
1420
			BIO_printf(bio, "No ALPN negotiated\n");
1421
	}
1422
1423
#ifndef OPENSSL_NO_SRTP
1424
	{
1425
		SRTP_PROTECTION_PROFILE *srtp_profile = SSL_get_selected_srtp_profile(s);
1426
1427
		if (srtp_profile)
1428
			BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
1429
			    srtp_profile->name);
1430
	}
1431
#endif
1432
1433
	SSL_SESSION_print(bio, SSL_get_session(s));
1434
	if (keymatexportlabel != NULL) {
1435
		BIO_printf(bio, "Keying material exporter:\n");
1436
		BIO_printf(bio, "    Label: '%s'\n", keymatexportlabel);
1437
		BIO_printf(bio, "    Length: %i bytes\n", keymatexportlen);
1438
		exportedkeymat = malloc(keymatexportlen);
1439
		if (exportedkeymat != NULL) {
1440
			if (!SSL_export_keying_material(s, exportedkeymat,
1441
				keymatexportlen,
1442
				keymatexportlabel,
1443
				strlen(keymatexportlabel),
1444
				NULL, 0, 0)) {
1445
				BIO_printf(bio, "    Error\n");
1446
			} else {
1447
				BIO_printf(bio, "    Keying material: ");
1448
				for (i = 0; i < keymatexportlen; i++)
1449
					BIO_printf(bio, "%02X",
1450
					    exportedkeymat[i]);
1451
				BIO_printf(bio, "\n");
1452
			}
1453
			free(exportedkeymat);
1454
		}
1455
	}
1456
	BIO_printf(bio, "---\n");
1457
	if (peer != NULL)
1458
		X509_free(peer);
1459
	/* flush, or debugging output gets mixed with http response */
1460
	(void) BIO_flush(bio);
1461
}
1462
1463
1464
static int
1465
ocsp_resp_cb(SSL * s, void *arg)
1466
{
1467
	const unsigned char *p;
1468
	int len;
1469
	OCSP_RESPONSE *rsp;
1470
	len = SSL_get_tlsext_status_ocsp_resp(s, &p);
1471
	BIO_puts(arg, "OCSP response: ");
1472
	if (!p) {
1473
		BIO_puts(arg, "no response sent\n");
1474
		return 1;
1475
	}
1476
	rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
1477
	if (!rsp) {
1478
		BIO_puts(arg, "response parse error\n");
1479
		BIO_dump_indent(arg, (char *) p, len, 4);
1480
		return 0;
1481
	}
1482
	BIO_puts(arg, "\n======================================\n");
1483
	OCSP_RESPONSE_print(arg, rsp, 0);
1484
	BIO_puts(arg, "======================================\n");
1485
	OCSP_RESPONSE_free(rsp);
1486
	return 1;
1487
}
1488