eae12871abb273e69d60e489a358c739af5f849b
[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 "s_apps.h"
165 #include "timeouts.h"
166
167 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
168 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
169 #undef FIONBIO
170 #endif
171
172 #if defined(OPENSSL_SYS_BEOS_R5)
173 #include <fcntl.h>
174 #endif
175
176 #undef PROG
177 #define PROG    s_client_main
178
179 /*#define SSL_HOST_NAME "www.netscape.com" */
180 /*#define SSL_HOST_NAME "193.118.187.102" */
181 #define SSL_HOST_NAME   "localhost"
182
183 /*#define TEST_CERT "client.pem" */ /* no default cert. */
184
185 #undef BUFSIZZ
186 #define BUFSIZZ 1024*8
187
188 extern int verify_depth;
189 extern int verify_error;
190 extern int verify_return_error;
191
192 #ifdef FIONBIO
193 static int c_nbio=0;
194 #endif
195 static int c_Pause=0;
196 static int c_debug=0;
197 #ifndef OPENSSL_NO_TLSEXT
198 static int c_tlsextdebug=0;
199 #endif
200 static int c_msg=0;
201 static int c_showcerts=0;
202
203 static void sc_usage(void);
204 static void print_stuff(BIO *berr,SSL *con,int full);
205 static BIO *bio_c_out=NULL;
206 static int c_quiet=0;
207 static int c_ign_eof=0;
208
209 #ifndef OPENSSL_NO_PSK
210 /* Default PSK identity and key */
211 static char *psk_identity="Client_identity";
212 static char *psk_key=NULL; /* by default PSK is not used */
213
214 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
215         unsigned int max_identity_len, unsigned char *psk,
216         unsigned int max_psk_len)
217         {
218         unsigned int psk_len = 0;
219         int ret;
220         BIGNUM *bn=NULL;
221
222         if (c_debug)
223                 BIO_printf(bio_c_out, "psk_client_cb\n");
224         if (!hint)
225                 {
226                 /* no ServerKeyExchange message*/
227                 if (c_debug)
228                         BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n");
229                 }
230         else if (c_debug)
231                 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
232
233         /* lookup PSK identity and PSK key based on the given identity hint here */
234         ret = BIO_snprintf(identity, max_identity_len, psk_identity);
235         if (ret < 0 || (unsigned int)ret > max_identity_len)
236                 goto out_err;
237         if (c_debug)
238                 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret);
239         ret=BN_hex2bn(&bn, psk_key);
240         if (!ret)
241                 {
242                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
243                 if (bn)
244                         BN_free(bn);
245                 return 0;
246                 }
247
248         if ((unsigned int)BN_num_bytes(bn) > max_psk_len)
249                 {
250                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
251                         max_psk_len, BN_num_bytes(bn));
252                 BN_free(bn);
253                 return 0;
254                 }
255
256         psk_len=BN_bn2bin(bn, psk);
257         BN_free(bn);
258         if (psk_len == 0)
259                 goto out_err;
260
261         if (c_debug)
262                 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
263
264         return psk_len;
265  out_err:
266         if (c_debug)
267                 BIO_printf(bio_err, "Error in PSK client callback\n");
268         return 0;
269         }
270 #endif
271
272 static void sc_usage(void)
273         {
274         BIO_printf(bio_err,"usage: s_client args\n");
275         BIO_printf(bio_err,"\n");
276         BIO_printf(bio_err," -host host     - use -connect instead\n");
277         BIO_printf(bio_err," -port port     - use -connect instead\n");
278         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
279
280         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
281         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
282         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
283         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
284         BIO_printf(bio_err,"                 not specified but cert file is.\n");
285         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
286         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
287         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
288         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
289         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
290         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
291         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
292         BIO_printf(bio_err," -debug        - extra output\n");
293 #ifdef WATT32
294         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
295 #endif
296         BIO_printf(bio_err," -msg          - Show protocol messages\n");
297         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
298         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
299 #ifdef FIONBIO
300         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
301 #endif
302         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
303         BIO_printf(bio_err," -quiet        - no s_client output\n");
304         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
305 #ifndef OPENSSL_NO_PSK
306         BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
307         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
308 #endif
309         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
310         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
311         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
312         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");    
313         BIO_printf(bio_err," -mtu          - set the MTU\n");
314         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
315         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
316         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
317         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
318         BIO_printf(bio_err,"                 command to see what is available\n");
319         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
320         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
321         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
322         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", and \"ftp\" are supported.\n");
323 #ifndef OPENSSL_NO_ENGINE
324         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
325 #endif
326         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
327         BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
328         BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
329 #ifndef OPENSSL_NO_TLSEXT
330         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
331         BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
332         BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
333 #endif
334         }
335
336 #ifndef OPENSSL_NO_TLSEXT
337
338 /* This is a context that we pass to callbacks */
339 typedef struct tlsextctx_st {
340    BIO * biodebug;
341    int ack;
342 } tlsextctx;
343
344
345 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
346         {
347         tlsextctx * p = (tlsextctx *) arg;
348         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
349         if (SSL_get_servername_type(s) != -1) 
350                 p->ack = !SSL_session_reused(s) && hn != NULL;
351         else 
352                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
353         
354         return SSL_TLSEXT_ERR_OK;
355         }
356 #endif
357
358 enum
359 {
360         PROTO_OFF       = 0,
361         PROTO_SMTP,
362         PROTO_POP3,
363         PROTO_IMAP,
364         PROTO_FTP
365 };
366
367 int MAIN(int, char **);
368
369 int MAIN(int argc, char **argv)
370         {
371         int off=0;
372         SSL *con=NULL;
373         X509_STORE *store = NULL;
374         int s,k,width,state=0;
375         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
376         int cbuf_len,cbuf_off;
377         int sbuf_len,sbuf_off;
378         fd_set readfds,writefds;
379         short port=PORT;
380         int full_log=1;
381         char *host=SSL_HOST_NAME;
382         char *cert_file=NULL,*key_file=NULL;
383         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
384         char *passarg = NULL, *pass = NULL;
385         X509 *cert = NULL;
386         EVP_PKEY *key = NULL;
387         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
388         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
389         int crlf=0;
390         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
391         SSL_CTX *ctx=NULL;
392         int ret=1,in_init=1,i,nbio_test=0;
393         int starttls_proto = PROTO_OFF;
394         int prexit = 0, vflags = 0;
395         const SSL_METHOD *meth=NULL;
396         int socket_type=SOCK_STREAM;
397         BIO *sbio;
398         char *inrand=NULL;
399         int mbuf_len=0;
400 #ifndef OPENSSL_NO_ENGINE
401         char *engine_id=NULL;
402         ENGINE *e=NULL;
403 #endif
404 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
405         struct timeval tv;
406 #if defined(OPENSSL_SYS_BEOS_R5)
407         int stdin_set = 0;
408 #endif
409 #endif
410
411 #ifndef OPENSSL_NO_TLSEXT
412         char *servername = NULL; 
413         tlsextctx tlsextcbp = 
414         {NULL,0};
415 #endif
416         char *sess_in = NULL;
417         char *sess_out = NULL;
418         struct sockaddr peer;
419         int peerlen = sizeof(peer);
420         int enable_timeouts = 0 ;
421         long socket_mtu = 0;
422
423 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
424         meth=SSLv23_client_method();
425 #elif !defined(OPENSSL_NO_SSL3)
426         meth=SSLv3_client_method();
427 #elif !defined(OPENSSL_NO_SSL2)
428         meth=SSLv2_client_method();
429 #endif
430
431         apps_startup();
432         c_Pause=0;
433         c_quiet=0;
434         c_ign_eof=0;
435         c_debug=0;
436         c_msg=0;
437         c_showcerts=0;
438
439         if (bio_err == NULL)
440                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
441
442         if (!load_config(bio_err, NULL))
443                 goto end;
444
445         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
446                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
447                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
448                 {
449                 BIO_printf(bio_err,"out of memory\n");
450                 goto end;
451                 }
452
453         verify_depth=0;
454         verify_error=X509_V_OK;
455 #ifdef FIONBIO
456         c_nbio=0;
457 #endif
458
459         argc--;
460         argv++;
461         while (argc >= 1)
462                 {
463                 if      (strcmp(*argv,"-host") == 0)
464                         {
465                         if (--argc < 1) goto bad;
466                         host= *(++argv);
467                         }
468                 else if (strcmp(*argv,"-port") == 0)
469                         {
470                         if (--argc < 1) goto bad;
471                         port=atoi(*(++argv));
472                         if (port == 0) goto bad;
473                         }
474                 else if (strcmp(*argv,"-connect") == 0)
475                         {
476                         if (--argc < 1) goto bad;
477                         if (!extract_host_port(*(++argv),&host,NULL,&port))
478                                 goto bad;
479                         }
480                 else if (strcmp(*argv,"-verify") == 0)
481                         {
482                         verify=SSL_VERIFY_PEER;
483                         if (--argc < 1) goto bad;
484                         verify_depth=atoi(*(++argv));
485                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
486                         }
487                 else if (strcmp(*argv,"-cert") == 0)
488                         {
489                         if (--argc < 1) goto bad;
490                         cert_file= *(++argv);
491                         }
492                 else if (strcmp(*argv,"-sess_out") == 0)
493                         {
494                         if (--argc < 1) goto bad;
495                         sess_out = *(++argv);
496                         }
497                 else if (strcmp(*argv,"-sess_in") == 0)
498                         {
499                         if (--argc < 1) goto bad;
500                         sess_in = *(++argv);
501                         }
502                 else if (strcmp(*argv,"-certform") == 0)
503                         {
504                         if (--argc < 1) goto bad;
505                         cert_format = str2fmt(*(++argv));
506                         }
507                 else if (strcmp(*argv,"-crl_check") == 0)
508                         vflags |= X509_V_FLAG_CRL_CHECK;
509                 else if (strcmp(*argv,"-crl_check_all") == 0)
510                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
511                 else if (strcmp(*argv,"-verify_return_error") == 0)
512                         verify_return_error = 1;
513                 else if (strcmp(*argv,"-prexit") == 0)
514                         prexit=1;
515                 else if (strcmp(*argv,"-crlf") == 0)
516                         crlf=1;
517                 else if (strcmp(*argv,"-quiet") == 0)
518                         {
519                         c_quiet=1;
520                         c_ign_eof=1;
521                         }
522                 else if (strcmp(*argv,"-ign_eof") == 0)
523                         c_ign_eof=1;
524                 else if (strcmp(*argv,"-pause") == 0)
525                         c_Pause=1;
526                 else if (strcmp(*argv,"-debug") == 0)
527                         c_debug=1;
528 #ifndef OPENSSL_NO_TLSEXT
529                 else if (strcmp(*argv,"-tlsextdebug") == 0)
530                         c_tlsextdebug=1;
531 #endif
532 #ifdef WATT32
533                 else if (strcmp(*argv,"-wdebug") == 0)
534                         dbug_init();
535 #endif
536                 else if (strcmp(*argv,"-msg") == 0)
537                         c_msg=1;
538                 else if (strcmp(*argv,"-showcerts") == 0)
539                         c_showcerts=1;
540                 else if (strcmp(*argv,"-nbio_test") == 0)
541                         nbio_test=1;
542                 else if (strcmp(*argv,"-state") == 0)
543                         state=1;
544 #ifndef OPENSSL_NO_PSK
545                 else if (strcmp(*argv,"-psk_identity") == 0)
546                         {
547                         if (--argc < 1) goto bad;
548                         psk_identity=*(++argv);
549                         }
550                 else if (strcmp(*argv,"-psk") == 0)
551                         {
552                         size_t j;
553
554                         if (--argc < 1) goto bad;
555                         psk_key=*(++argv);
556                         for (j = 0; j < strlen(psk_key); j++)
557                                 {
558                                 if (isxdigit((int)psk_key[j]))
559                                         continue;
560                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
561                                 goto bad;
562                                 }
563                         }
564 #endif
565 #ifndef OPENSSL_NO_SSL2
566                 else if (strcmp(*argv,"-ssl2") == 0)
567                         meth=SSLv2_client_method();
568 #endif
569 #ifndef OPENSSL_NO_SSL3
570                 else if (strcmp(*argv,"-ssl3") == 0)
571                         meth=SSLv3_client_method();
572 #endif
573 #ifndef OPENSSL_NO_TLS1
574                 else if (strcmp(*argv,"-tls1") == 0)
575                         meth=TLSv1_client_method();
576 #endif
577 #ifndef OPENSSL_NO_DTLS1
578                 else if (strcmp(*argv,"-dtls1") == 0)
579                         {
580                         meth=DTLSv1_client_method();
581                         socket_type=SOCK_DGRAM;
582                         }
583                 else if (strcmp(*argv,"-timeout") == 0)
584                         enable_timeouts=1;
585                 else if (strcmp(*argv,"-mtu") == 0)
586                         {
587                         if (--argc < 1) goto bad;
588                         socket_mtu = atol(*(++argv));
589                         }
590 #endif
591                 else if (strcmp(*argv,"-bugs") == 0)
592                         bugs=1;
593                 else if (strcmp(*argv,"-keyform") == 0)
594                         {
595                         if (--argc < 1) goto bad;
596                         key_format = str2fmt(*(++argv));
597                         }
598                 else if (strcmp(*argv,"-pass") == 0)
599                         {
600                         if (--argc < 1) goto bad;
601                         passarg = *(++argv);
602                         }
603                 else if (strcmp(*argv,"-key") == 0)
604                         {
605                         if (--argc < 1) goto bad;
606                         key_file= *(++argv);
607                         }
608                 else if (strcmp(*argv,"-reconnect") == 0)
609                         {
610                         reconnect=5;
611                         }
612                 else if (strcmp(*argv,"-CApath") == 0)
613                         {
614                         if (--argc < 1) goto bad;
615                         CApath= *(++argv);
616                         }
617                 else if (strcmp(*argv,"-CAfile") == 0)
618                         {
619                         if (--argc < 1) goto bad;
620                         CAfile= *(++argv);
621                         }
622                 else if (strcmp(*argv,"-no_tls1") == 0)
623                         off|=SSL_OP_NO_TLSv1;
624                 else if (strcmp(*argv,"-no_ssl3") == 0)
625                         off|=SSL_OP_NO_SSLv3;
626                 else if (strcmp(*argv,"-no_ssl2") == 0)
627                         off|=SSL_OP_NO_SSLv2;
628                 else if (strcmp(*argv,"-no_comp") == 0)
629                         { off|=SSL_OP_NO_COMPRESSION; }
630 #ifndef OPENSSL_NO_TLSEXT
631                 else if (strcmp(*argv,"-no_ticket") == 0)
632                         { off|=SSL_OP_NO_TICKET; }
633 #endif
634                 else if (strcmp(*argv,"-serverpref") == 0)
635                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
636                 else if (strcmp(*argv,"-cipher") == 0)
637                         {
638                         if (--argc < 1) goto bad;
639                         cipher= *(++argv);
640                         }
641 #ifdef FIONBIO
642                 else if (strcmp(*argv,"-nbio") == 0)
643                         { c_nbio=1; }
644 #endif
645                 else if (strcmp(*argv,"-starttls") == 0)
646                         {
647                         if (--argc < 1) goto bad;
648                         ++argv;
649                         if (strcmp(*argv,"smtp") == 0)
650                                 starttls_proto = PROTO_SMTP;
651                         else if (strcmp(*argv,"pop3") == 0)
652                                 starttls_proto = PROTO_POP3;
653                         else if (strcmp(*argv,"imap") == 0)
654                                 starttls_proto = PROTO_IMAP;
655                         else if (strcmp(*argv,"ftp") == 0)
656                                 starttls_proto = PROTO_FTP;
657                         else
658                                 goto bad;
659                         }
660 #ifndef OPENSSL_NO_ENGINE
661                 else if (strcmp(*argv,"-engine") == 0)
662                         {
663                         if (--argc < 1) goto bad;
664                         engine_id = *(++argv);
665                         }
666 #endif
667                 else if (strcmp(*argv,"-rand") == 0)
668                         {
669                         if (--argc < 1) goto bad;
670                         inrand= *(++argv);
671                         }
672 #ifndef OPENSSL_NO_TLSEXT
673                 else if (strcmp(*argv,"-servername") == 0)
674                         {
675                         if (--argc < 1) goto bad;
676                         servername= *(++argv);
677                         /* meth=TLSv1_client_method(); */
678                         }
679 #endif
680                 else
681                         {
682                         BIO_printf(bio_err,"unknown option %s\n",*argv);
683                         badop=1;
684                         break;
685                         }
686                 argc--;
687                 argv++;
688                 }
689         if (badop)
690                 {
691 bad:
692                 sc_usage();
693                 goto end;
694                 }
695
696         OpenSSL_add_ssl_algorithms();
697         SSL_load_error_strings();
698
699 #ifndef OPENSSL_NO_ENGINE
700         e = setup_engine(bio_err, engine_id, 1);
701 #endif
702         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
703                 {
704                 BIO_printf(bio_err, "Error getting password\n");
705                 goto end;
706                 }
707
708         if (key_file == NULL)
709                 key_file = cert_file;
710
711
712         if (key_file)
713
714                 {
715
716                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
717                                "client certificate private key file");
718                 if (!key)
719                         {
720                         ERR_print_errors(bio_err);
721                         goto end;
722                         }
723
724                 }
725
726         if (cert_file)
727
728                 {
729                 cert = load_cert(bio_err,cert_file,cert_format,
730                                 NULL, e, "client certificate file");
731
732                 if (!cert)
733                         {
734                         ERR_print_errors(bio_err);
735                         goto end;
736                         }
737                 }
738
739         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
740                 && !RAND_status())
741                 {
742                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
743                 }
744         if (inrand != NULL)
745                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
746                         app_RAND_load_files(inrand));
747
748         if (bio_c_out == NULL)
749                 {
750                 if (c_quiet && !c_debug && !c_msg)
751                         {
752                         bio_c_out=BIO_new(BIO_s_null());
753                         }
754                 else
755                         {
756                         if (bio_c_out == NULL)
757                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
758                         }
759                 }
760
761         ctx=SSL_CTX_new(meth);
762         if (ctx == NULL)
763                 {
764                 ERR_print_errors(bio_err);
765                 goto end;
766                 }
767
768 #ifndef OPENSSL_NO_PSK
769         if (psk_key != NULL)
770                 {
771                 if (c_debug)
772                         BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
773                 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
774                 }
775 #endif
776         if (bugs)
777                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
778         else
779                 SSL_CTX_set_options(ctx,off);
780         /* DTLS: partial reads end up discarding unread UDP bytes :-( 
781          * Setting read ahead solves this problem.
782          */
783         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
784
785         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
786         if (cipher != NULL)
787                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
788                 BIO_printf(bio_err,"error setting cipher list\n");
789                 ERR_print_errors(bio_err);
790                 goto end;
791         }
792 #if 0
793         else
794                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
795 #endif
796
797         SSL_CTX_set_verify(ctx,verify,verify_callback);
798         if (!set_cert_key_stuff(ctx,cert,key))
799                 goto end;
800
801         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
802                 (!SSL_CTX_set_default_verify_paths(ctx)))
803                 {
804                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
805                 ERR_print_errors(bio_err);
806                 /* goto end; */
807                 }
808
809         store = SSL_CTX_get_cert_store(ctx);
810         X509_STORE_set_flags(store, vflags);
811 #ifndef OPENSSL_NO_TLSEXT
812         if (servername != NULL)
813                 {
814                 tlsextcbp.biodebug = bio_err;
815                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
816                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
817                 }
818 #endif
819
820         con=SSL_new(ctx);
821         if (sess_in)
822                 {
823                 SSL_SESSION *sess;
824                 BIO *stmp = BIO_new_file(sess_in, "r");
825                 if (!stmp)
826                         {
827                         BIO_printf(bio_err, "Can't open session file %s\n",
828                                                 sess_in);
829                         ERR_print_errors(bio_err);
830                         goto end;
831                         }
832                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
833                 BIO_free(stmp);
834                 if (!sess)
835                         {
836                         BIO_printf(bio_err, "Can't open session file %s\n",
837                                                 sess_in);
838                         ERR_print_errors(bio_err);
839                         goto end;
840                         }
841                 SSL_set_session(con, sess);
842                 SSL_SESSION_free(sess);
843                 }
844 #ifndef OPENSSL_NO_TLSEXT
845         if (servername != NULL)
846                 {
847                 if (!SSL_set_tlsext_host_name(con,servername))
848                         {
849                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
850                         ERR_print_errors(bio_err);
851                         goto end;
852                         }
853                 }
854 #endif
855 #ifndef OPENSSL_NO_KRB5
856         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
857                 {
858                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
859                 }
860 #endif  /* OPENSSL_NO_KRB5  */
861 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
862 #if 0
863 #ifdef TLSEXT_TYPE_opaque_prf_input
864         SSL_set_tlsext_opaque_prf_input(con, "Test client", 1);
865 #endif
866 #endif
867
868 re_start:
869
870         if (init_client(&s,host,port,socket_type) == 0)
871                 {
872                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
873                 SHUTDOWN(s);
874                 goto end;
875                 }
876         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
877
878 #ifdef FIONBIO
879         if (c_nbio)
880                 {
881                 unsigned long l=1;
882                 BIO_printf(bio_c_out,"turning on non blocking io\n");
883                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
884                         {
885                         ERR_print_errors(bio_err);
886                         goto end;
887                         }
888                 }
889 #endif                                              
890         if (c_Pause & 0x01) con->debug=1;
891
892         if ( SSL_version(con) == DTLS1_VERSION)
893                 {
894                 struct timeval timeout;
895
896                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
897                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
898                         {
899                         BIO_printf(bio_err, "getsockname:errno=%d\n",
900                                 get_last_socket_error());
901                         SHUTDOWN(s);
902                         goto end;
903                         }
904
905                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
906
907                 if (enable_timeouts)
908                         {
909                         timeout.tv_sec = 0;
910                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
911                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
912                         
913                         timeout.tv_sec = 0;
914                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
915                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
916                         }
917
918                 if (socket_mtu > 0)
919                         {
920                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
921                         SSL_set_mtu(con, socket_mtu);
922                         }
923                 else
924                         /* want to do MTU discovery */
925                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
926                 }
927         else
928                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
929
930
931
932         if (nbio_test)
933                 {
934                 BIO *test;
935
936                 test=BIO_new(BIO_f_nbio_test());
937                 sbio=BIO_push(test,sbio);
938                 }
939
940         if (c_debug)
941                 {
942                 con->debug=1;
943                 BIO_set_callback(sbio,bio_dump_callback);
944                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
945                 }
946         if (c_msg)
947                 {
948                 SSL_set_msg_callback(con, msg_cb);
949                 SSL_set_msg_callback_arg(con, bio_c_out);
950                 }
951 #ifndef OPENSSL_NO_TLSEXT
952         if (c_tlsextdebug)
953                 {
954                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
955                 SSL_set_tlsext_debug_arg(con, bio_c_out);
956                 }
957 #endif
958
959         SSL_set_bio(con,sbio,sbio);
960         SSL_set_connect_state(con);
961
962         /* ok, lets connect */
963         width=SSL_get_fd(con)+1;
964
965         read_tty=1;
966         write_tty=0;
967         tty_on=0;
968         read_ssl=1;
969         write_ssl=1;
970         
971         cbuf_len=0;
972         cbuf_off=0;
973         sbuf_len=0;
974         sbuf_off=0;
975
976         /* This is an ugly hack that does a lot of assumptions */
977         /* We do have to handle multi-line responses which may come
978            in a single packet or not. We therefore have to use
979            BIO_gets() which does need a buffering BIO. So during
980            the initial chitchat we do push a buffering BIO into the
981            chain that is removed again later on to not disturb the
982            rest of the s_client operation. */
983         if (starttls_proto == PROTO_SMTP)
984                 {
985                 int foundit=0;
986                 BIO *fbio = BIO_new(BIO_f_buffer());
987                 BIO_push(fbio, sbio);
988                 /* wait for multi-line response to end from SMTP */
989                 do
990                         {
991                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
992                         }
993                 while (mbuf_len>3 && mbuf[3]=='-');
994                 /* STARTTLS command requires EHLO... */
995                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
996                 (void)BIO_flush(fbio);
997                 /* wait for multi-line response to end EHLO SMTP response */
998                 do
999                         {
1000                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1001                         if (strstr(mbuf,"STARTTLS"))
1002                                 foundit=1;
1003                         }
1004                 while (mbuf_len>3 && mbuf[3]=='-');
1005                 (void)BIO_flush(fbio);
1006                 BIO_pop(fbio);
1007                 BIO_free(fbio);
1008                 if (!foundit)
1009                         BIO_printf(bio_err,
1010                                    "didn't found starttls in server response,"
1011                                    " try anyway...\n");
1012                 BIO_printf(sbio,"STARTTLS\r\n");
1013                 BIO_read(sbio,sbuf,BUFSIZZ);
1014                 }
1015         else if (starttls_proto == PROTO_POP3)
1016                 {
1017                 BIO_read(sbio,mbuf,BUFSIZZ);
1018                 BIO_printf(sbio,"STLS\r\n");
1019                 BIO_read(sbio,sbuf,BUFSIZZ);
1020                 }
1021         else if (starttls_proto == PROTO_IMAP)
1022                 {
1023                 int foundit=0;
1024                 BIO *fbio = BIO_new(BIO_f_buffer());
1025                 BIO_push(fbio, sbio);
1026                 BIO_gets(fbio,mbuf,BUFSIZZ);
1027                 /* STARTTLS command requires CAPABILITY... */
1028                 BIO_printf(fbio,". CAPABILITY\r\n");
1029                 (void)BIO_flush(fbio);
1030                 /* wait for multi-line CAPABILITY response */
1031                 do
1032                         {
1033                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1034                         if (strstr(mbuf,"STARTTLS"))
1035                                 foundit=1;
1036                         }
1037                 while (mbuf_len>3 && mbuf[0]!='.');
1038                 (void)BIO_flush(fbio);
1039                 BIO_pop(fbio);
1040                 BIO_free(fbio);
1041                 if (!foundit)
1042                         BIO_printf(bio_err,
1043                                    "didn't found STARTTLS in server response,"
1044                                    " try anyway...\n");
1045                 BIO_printf(sbio,". STARTTLS\r\n");
1046                 BIO_read(sbio,sbuf,BUFSIZZ);
1047                 }
1048         else if (starttls_proto == PROTO_FTP)
1049                 {
1050                 BIO *fbio = BIO_new(BIO_f_buffer());
1051                 BIO_push(fbio, sbio);
1052                 /* wait for multi-line response to end from FTP */
1053                 do
1054                         {
1055                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1056                         }
1057                 while (mbuf_len>3 && mbuf[3]=='-');
1058                 (void)BIO_flush(fbio);
1059                 BIO_pop(fbio);
1060                 BIO_free(fbio);
1061                 BIO_printf(sbio,"AUTH TLS\r\n");
1062                 BIO_read(sbio,sbuf,BUFSIZZ);
1063                 }
1064
1065         for (;;)
1066                 {
1067                 FD_ZERO(&readfds);
1068                 FD_ZERO(&writefds);
1069
1070                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1071                         {
1072                         in_init=1;
1073                         tty_on=0;
1074                         }
1075                 else
1076                         {
1077                         tty_on=1;
1078                         if (in_init)
1079                                 {
1080                                 in_init=0;
1081 #if 0 /* This test doesn't really work as intended (needs to be fixed) */
1082 #ifndef OPENSSL_NO_TLSEXT
1083                                 if (servername != NULL && !SSL_session_reused(con))
1084                                         {
1085                                         BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
1086                                         }
1087 #endif
1088 #endif
1089                                 if (sess_out)
1090                                         {
1091                                         BIO *stmp = BIO_new_file(sess_out, "w");
1092                                         if (stmp)
1093                                                 {
1094                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1095                                                 BIO_free(stmp);
1096                                                 }
1097                                         else 
1098                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1099                                         }
1100                                 print_stuff(bio_c_out,con,full_log);
1101                                 if (full_log > 0) full_log--;
1102
1103                                 if (starttls_proto)
1104                                         {
1105                                         BIO_printf(bio_err,"%s",mbuf);
1106                                         /* We don't need to know any more */
1107                                         starttls_proto = PROTO_OFF;
1108                                         }
1109
1110                                 if (reconnect)
1111                                         {
1112                                         reconnect--;
1113                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1114                                         SSL_shutdown(con);
1115                                         SSL_set_connect_state(con);
1116                                         SHUTDOWN(SSL_get_fd(con));
1117                                         goto re_start;
1118                                         }
1119                                 }
1120                         }
1121
1122                 ssl_pending = read_ssl && SSL_pending(con);
1123
1124                 if (!ssl_pending)
1125                         {
1126 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
1127                         if (tty_on)
1128                                 {
1129                                 if (read_tty)  openssl_fdset(fileno(stdin),&readfds);
1130                                 if (write_tty) openssl_fdset(fileno(stdout),&writefds);
1131                                 }
1132                         if (read_ssl)
1133                                 openssl_fdset(SSL_get_fd(con),&readfds);
1134                         if (write_ssl)
1135                                 openssl_fdset(SSL_get_fd(con),&writefds);
1136 #else
1137                         if(!tty_on || !write_tty) {
1138                                 if (read_ssl)
1139                                         openssl_fdset(SSL_get_fd(con),&readfds);
1140                                 if (write_ssl)
1141                                         openssl_fdset(SSL_get_fd(con),&writefds);
1142                         }
1143 #endif
1144 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1145                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1146
1147                         /* Note: under VMS with SOCKETSHR the second parameter
1148                          * is currently of type (int *) whereas under other
1149                          * systems it is (void *) if you don't have a cast it
1150                          * will choke the compiler: if you do have a cast then
1151                          * you can either go for (int *) or (void *).
1152                          */
1153 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1154                         /* Under Windows/DOS we make the assumption that we can
1155                          * always write to the tty: therefore if we need to
1156                          * write to the tty we just fall through. Otherwise
1157                          * we timeout the select every second and see if there
1158                          * are any keypresses. Note: this is a hack, in a proper
1159                          * Windows application we wouldn't do this.
1160                          */
1161                         i=0;
1162                         if(!write_tty) {
1163                                 if(read_tty) {
1164                                         tv.tv_sec = 1;
1165                                         tv.tv_usec = 0;
1166                                         i=select(width,(void *)&readfds,(void *)&writefds,
1167                                                  NULL,&tv);
1168 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1169                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1170 #else
1171                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1172 #endif
1173                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1174                                          NULL,NULL);
1175                         }
1176 #elif defined(OPENSSL_SYS_NETWARE)
1177                         if(!write_tty) {
1178                                 if(read_tty) {
1179                                         tv.tv_sec = 1;
1180                                         tv.tv_usec = 0;
1181                                         i=select(width,(void *)&readfds,(void *)&writefds,
1182                                                 NULL,&tv);
1183                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1184                                         NULL,NULL);
1185                         }
1186 #elif defined(OPENSSL_SYS_BEOS_R5)
1187                         /* Under BeOS-R5 the situation is similar to DOS */
1188                         i=0;
1189                         stdin_set = 0;
1190                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1191                         if(!write_tty) {
1192                                 if(read_tty) {
1193                                         tv.tv_sec = 1;
1194                                         tv.tv_usec = 0;
1195                                         i=select(width,(void *)&readfds,(void *)&writefds,
1196                                                  NULL,&tv);
1197                                         if (read(fileno(stdin), sbuf, 0) >= 0)
1198                                                 stdin_set = 1;
1199                                         if (!i && (stdin_set != 1 || !read_tty))
1200                                                 continue;
1201                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1202                                          NULL,NULL);
1203                         }
1204                         (void)fcntl(fileno(stdin), F_SETFL, 0);
1205 #else
1206                         i=select(width,(void *)&readfds,(void *)&writefds,
1207                                  NULL,NULL);
1208 #endif
1209                         if ( i < 0)
1210                                 {
1211                                 BIO_printf(bio_err,"bad select %d\n",
1212                                 get_last_socket_error());
1213                                 goto shut;
1214                                 /* goto end; */
1215                                 }
1216                         }
1217
1218                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1219                         {
1220                         k=SSL_write(con,&(cbuf[cbuf_off]),
1221                                 (unsigned int)cbuf_len);
1222                         switch (SSL_get_error(con,k))
1223                                 {
1224                         case SSL_ERROR_NONE:
1225                                 cbuf_off+=k;
1226                                 cbuf_len-=k;
1227                                 if (k <= 0) goto end;
1228                                 /* we have done a  write(con,NULL,0); */
1229                                 if (cbuf_len <= 0)
1230                                         {
1231                                         read_tty=1;
1232                                         write_ssl=0;
1233                                         }
1234                                 else /* if (cbuf_len > 0) */
1235                                         {
1236                                         read_tty=0;
1237                                         write_ssl=1;
1238                                         }
1239                                 break;
1240                         case SSL_ERROR_WANT_WRITE:
1241                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1242                                 write_ssl=1;
1243                                 read_tty=0;
1244                                 break;
1245                         case SSL_ERROR_WANT_READ:
1246                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1247                                 write_tty=0;
1248                                 read_ssl=1;
1249                                 write_ssl=0;
1250                                 break;
1251                         case SSL_ERROR_WANT_X509_LOOKUP:
1252                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1253                                 break;
1254                         case SSL_ERROR_ZERO_RETURN:
1255                                 if (cbuf_len != 0)
1256                                         {
1257                                         BIO_printf(bio_c_out,"shutdown\n");
1258                                         goto shut;
1259                                         }
1260                                 else
1261                                         {
1262                                         read_tty=1;
1263                                         write_ssl=0;
1264                                         break;
1265                                         }
1266                                 
1267                         case SSL_ERROR_SYSCALL:
1268                                 if ((k != 0) || (cbuf_len != 0))
1269                                         {
1270                                         BIO_printf(bio_err,"write:errno=%d\n",
1271                                                 get_last_socket_error());
1272                                         goto shut;
1273                                         }
1274                                 else
1275                                         {
1276                                         read_tty=1;
1277                                         write_ssl=0;
1278                                         }
1279                                 break;
1280                         case SSL_ERROR_SSL:
1281                                 ERR_print_errors(bio_err);
1282                                 goto shut;
1283                                 }
1284                         }
1285 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1286                 /* Assume Windows/DOS/BeOS can always write */
1287                 else if (!ssl_pending && write_tty)
1288 #else
1289                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1290 #endif
1291                         {
1292 #ifdef CHARSET_EBCDIC
1293                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1294 #endif
1295                         i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
1296
1297                         if (i <= 0)
1298                                 {
1299                                 BIO_printf(bio_c_out,"DONE\n");
1300                                 goto shut;
1301                                 /* goto end; */
1302                                 }
1303
1304                         sbuf_len-=i;;
1305                         sbuf_off+=i;
1306                         if (sbuf_len <= 0)
1307                                 {
1308                                 read_ssl=1;
1309                                 write_tty=0;
1310                                 }
1311                         }
1312                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1313                         {
1314 #ifdef RENEG
1315 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1316 #endif
1317 #if 1
1318                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1319 #else
1320 /* Demo for pending and peek :-) */
1321                         k=SSL_read(con,sbuf,16);
1322 { char zbuf[10240]; 
1323 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1324 }
1325 #endif
1326
1327                         switch (SSL_get_error(con,k))
1328                                 {
1329                         case SSL_ERROR_NONE:
1330                                 if (k <= 0)
1331                                         goto end;
1332                                 sbuf_off=0;
1333                                 sbuf_len=k;
1334
1335                                 read_ssl=0;
1336                                 write_tty=1;
1337                                 break;
1338                         case SSL_ERROR_WANT_WRITE:
1339                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1340                                 write_ssl=1;
1341                                 read_tty=0;
1342                                 break;
1343                         case SSL_ERROR_WANT_READ:
1344                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1345                                 write_tty=0;
1346                                 read_ssl=1;
1347                                 if ((read_tty == 0) && (write_ssl == 0))
1348                                         write_ssl=1;
1349                                 break;
1350                         case SSL_ERROR_WANT_X509_LOOKUP:
1351                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1352                                 break;
1353                         case SSL_ERROR_SYSCALL:
1354                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
1355                                 goto shut;
1356                         case SSL_ERROR_ZERO_RETURN:
1357                                 BIO_printf(bio_c_out,"closed\n");
1358                                 goto shut;
1359                         case SSL_ERROR_SSL:
1360                                 ERR_print_errors(bio_err);
1361                                 goto shut;
1362                                 /* break; */
1363                                 }
1364                         }
1365
1366 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1367 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1368                 else if (_kbhit())
1369 #else
1370                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1371 #endif
1372 #elif defined (OPENSSL_SYS_NETWARE)
1373                 else if (_kbhit())
1374 #elif defined(OPENSSL_SYS_BEOS_R5)
1375                 else if (stdin_set)
1376 #else
1377                 else if (FD_ISSET(fileno(stdin),&readfds))
1378 #endif
1379                         {
1380                         if (crlf)
1381                                 {
1382                                 int j, lf_num;
1383
1384                                 i=raw_read_stdin(cbuf,BUFSIZZ/2);
1385                                 lf_num = 0;
1386                                 /* both loops are skipped when i <= 0 */
1387                                 for (j = 0; j < i; j++)
1388                                         if (cbuf[j] == '\n')
1389                                                 lf_num++;
1390                                 for (j = i-1; j >= 0; j--)
1391                                         {
1392                                         cbuf[j+lf_num] = cbuf[j];
1393                                         if (cbuf[j] == '\n')
1394                                                 {
1395                                                 lf_num--;
1396                                                 i++;
1397                                                 cbuf[j+lf_num] = '\r';
1398                                                 }
1399                                         }
1400                                 assert(lf_num == 0);
1401                                 }
1402                         else
1403                                 i=raw_read_stdin(cbuf,BUFSIZZ);
1404
1405                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1406                                 {
1407                                 BIO_printf(bio_err,"DONE\n");
1408                                 goto shut;
1409                                 }
1410
1411                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1412                                 {
1413                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1414                                 SSL_renegotiate(con);
1415                                 cbuf_len=0;
1416                                 }
1417                         else
1418                                 {
1419                                 cbuf_len=i;
1420                                 cbuf_off=0;
1421 #ifdef CHARSET_EBCDIC
1422                                 ebcdic2ascii(cbuf, cbuf, i);
1423 #endif
1424                                 }
1425
1426                         write_ssl=1;
1427                         read_tty=0;
1428                         }
1429                 }
1430 shut:
1431         if (in_init)
1432                 print_stuff(bio_c_out,con,full_log);
1433         SSL_shutdown(con);
1434         SHUTDOWN(SSL_get_fd(con));
1435         ret=0;
1436 end:
1437         if (con != NULL)
1438                 {
1439                 if (prexit != 0)
1440                         print_stuff(bio_c_out,con,1);
1441                 SSL_free(con);
1442                 }
1443         if (ctx != NULL) SSL_CTX_free(ctx);
1444         if (cert)
1445                 X509_free(cert);
1446         if (key)
1447                 EVP_PKEY_free(key);
1448         if (pass)
1449                 OPENSSL_free(pass);
1450         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1451         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1452         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1453         if (bio_c_out != NULL)
1454                 {
1455                 BIO_free(bio_c_out);
1456                 bio_c_out=NULL;
1457                 }
1458         apps_shutdown();
1459         OPENSSL_EXIT(ret);
1460         }
1461
1462
1463 static void print_stuff(BIO *bio, SSL *s, int full)
1464         {
1465         X509 *peer=NULL;
1466         char *p;
1467         static const char *space="                ";
1468         char buf[BUFSIZ];
1469         STACK_OF(X509) *sk;
1470         STACK_OF(X509_NAME) *sk2;
1471         SSL_CIPHER *c;
1472         X509_NAME *xn;
1473         int j,i;
1474 #ifndef OPENSSL_NO_COMP
1475         const COMP_METHOD *comp, *expansion;
1476 #endif
1477
1478         if (full)
1479                 {
1480                 int got_a_chain = 0;
1481
1482                 sk=SSL_get_peer_cert_chain(s);
1483                 if (sk != NULL)
1484                         {
1485                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1486
1487                         BIO_printf(bio,"---\nCertificate chain\n");
1488                         for (i=0; i<sk_X509_num(sk); i++)
1489                                 {
1490                                 X509_NAME_oneline(X509_get_subject_name(
1491                                         sk_X509_value(sk,i)),buf,sizeof buf);
1492                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1493                                 X509_NAME_oneline(X509_get_issuer_name(
1494                                         sk_X509_value(sk,i)),buf,sizeof buf);
1495                                 BIO_printf(bio,"   i:%s\n",buf);
1496                                 if (c_showcerts)
1497                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1498                                 }
1499                         }
1500
1501                 BIO_printf(bio,"---\n");
1502                 peer=SSL_get_peer_certificate(s);
1503                 if (peer != NULL)
1504                         {
1505                         BIO_printf(bio,"Server certificate\n");
1506                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1507                                 PEM_write_bio_X509(bio,peer);
1508                         X509_NAME_oneline(X509_get_subject_name(peer),
1509                                 buf,sizeof buf);
1510                         BIO_printf(bio,"subject=%s\n",buf);
1511                         X509_NAME_oneline(X509_get_issuer_name(peer),
1512                                 buf,sizeof buf);
1513                         BIO_printf(bio,"issuer=%s\n",buf);
1514                         }
1515                 else
1516                         BIO_printf(bio,"no peer certificate available\n");
1517
1518                 sk2=SSL_get_client_CA_list(s);
1519                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1520                         {
1521                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1522                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1523                                 {
1524                                 xn=sk_X509_NAME_value(sk2,i);
1525                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1526                                 BIO_write(bio,buf,strlen(buf));
1527                                 BIO_write(bio,"\n",1);
1528                                 }
1529                         }
1530                 else
1531                         {
1532                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1533                         }
1534                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1535                 if (p != NULL)
1536                         {
1537                         /* This works only for SSL 2.  In later protocol
1538                          * versions, the client does not know what other
1539                          * ciphers (in addition to the one to be used
1540                          * in the current connection) the server supports. */
1541
1542                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1543                         j=i=0;
1544                         while (*p)
1545                                 {
1546                                 if (*p == ':')
1547                                         {
1548                                         BIO_write(bio,space,15-j%25);
1549                                         i++;
1550                                         j=0;
1551                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1552                                         }
1553                                 else
1554                                         {
1555                                         BIO_write(bio,p,1);
1556                                         j++;
1557                                         }
1558                                 p++;
1559                                 }
1560                         BIO_write(bio,"\n",1);
1561                         }
1562
1563                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1564                         BIO_number_read(SSL_get_rbio(s)),
1565                         BIO_number_written(SSL_get_wbio(s)));
1566                 }
1567         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1568         c=SSL_get_current_cipher(s);
1569         BIO_printf(bio,"%s, Cipher is %s\n",
1570                 SSL_CIPHER_get_version(c),
1571                 SSL_CIPHER_get_name(c));
1572         if (peer != NULL) {
1573                 EVP_PKEY *pktmp;
1574                 pktmp = X509_get_pubkey(peer);
1575                 BIO_printf(bio,"Server public key is %d bit\n",
1576                                                          EVP_PKEY_bits(pktmp));
1577                 EVP_PKEY_free(pktmp);
1578         }
1579 #ifndef OPENSSL_NO_COMP
1580         comp=SSL_get_current_compression(s);
1581         expansion=SSL_get_current_expansion(s);
1582         BIO_printf(bio,"Compression: %s\n",
1583                 comp ? SSL_COMP_get_name(comp) : "NONE");
1584         BIO_printf(bio,"Expansion: %s\n",
1585                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1586 #endif
1587         SSL_SESSION_print(bio,SSL_get_session(s));
1588         BIO_printf(bio,"---\n");
1589         if (peer != NULL)
1590                 X509_free(peer);
1591         /* flush, or debugging output gets mixed with http response */
1592         (void)BIO_flush(bio);
1593         }
1594