xref: /freebsd/crypto/openssl/apps/s_client.c (revision 190cef3d52236565eb22e18b33e9e865ec634aa3)
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) 1998-2018 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 /*
149  * With IPv6, it looks like Digital has mixed up the proper order of
150  * recursive header file inclusion, resulting in the compiler complaining
151  * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
152  * needed to have fileno() declared correctly...  So let's define u_int
153  */
154 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
155 # define __U_INT
156 typedef unsigned int u_int;
157 #endif
158 
159 #define USE_SOCKETS
160 #include "apps.h"
161 #include <openssl/x509.h>
162 #include <openssl/ssl.h>
163 #include <openssl/err.h>
164 #include <openssl/pem.h>
165 #include <openssl/rand.h>
166 #include <openssl/ocsp.h>
167 #include <openssl/bn.h>
168 #ifndef OPENSSL_NO_SRP
169 # include <openssl/srp.h>
170 #endif
171 #include "s_apps.h"
172 #include "timeouts.h"
173 
174 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
175 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
176 # undef FIONBIO
177 #endif
178 
179 #if defined(OPENSSL_SYS_BEOS_R5)
180 # include <fcntl.h>
181 #endif
182 
183 #undef PROG
184 #define PROG    s_client_main
185 
186 /*
187  * #define SSL_HOST_NAME "www.netscape.com"
188  */
189 /*
190  * #define SSL_HOST_NAME "193.118.187.102"
191  */
192 #define SSL_HOST_NAME   "localhost"
193 
194 /* no default cert. */
195 /*
196  * #define TEST_CERT "client.pem"
197  */
198 
199 #undef BUFSIZZ
200 #define BUFSIZZ 1024*8
201 
202 extern int verify_depth;
203 extern int verify_error;
204 extern int verify_return_error;
205 extern int verify_quiet;
206 
207 #ifdef FIONBIO
208 static int c_nbio = 0;
209 #endif
210 static int c_Pause = 0;
211 static int c_debug = 0;
212 #ifndef OPENSSL_NO_TLSEXT
213 static int c_tlsextdebug = 0;
214 static int c_status_req = 0;
215 #endif
216 static int c_msg = 0;
217 static int c_showcerts = 0;
218 
219 static char *keymatexportlabel = NULL;
220 static int keymatexportlen = 20;
221 
222 static void sc_usage(void);
223 static void print_stuff(BIO *berr, SSL *con, int full);
224 #ifndef OPENSSL_NO_TLSEXT
225 static int ocsp_resp_cb(SSL *s, void *arg);
226 #endif
227 static BIO *bio_c_out = NULL;
228 static BIO *bio_c_msg = NULL;
229 static int c_quiet = 0;
230 static int c_ign_eof = 0;
231 static int c_brief = 0;
232 
233 #ifndef OPENSSL_NO_PSK
234 /* Default PSK identity and key */
235 static char *psk_identity = "Client_identity";
236 /*
237  * char *psk_key=NULL; by default PSK is not used
238  */
239 
240 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
241                                   unsigned int max_identity_len,
242                                   unsigned char *psk,
243                                   unsigned int max_psk_len)
244 {
245     int ret;
246     long key_len;
247     unsigned char *key;
248 
249     if (c_debug)
250         BIO_printf(bio_c_out, "psk_client_cb\n");
251     if (!hint) {
252         /* no ServerKeyExchange message */
253         if (c_debug)
254             BIO_printf(bio_c_out,
255                        "NULL received PSK identity hint, continuing anyway\n");
256     } else if (c_debug)
257         BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
258 
259     /*
260      * lookup PSK identity and PSK key based on the given identity hint here
261      */
262     ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
263     if (ret < 0 || (unsigned int)ret > max_identity_len)
264         goto out_err;
265     if (c_debug)
266         BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity,
267                    ret);
268 
269     /* convert the PSK key to binary */
270     key = string_to_hex(psk_key, &key_len);
271     if (key == NULL) {
272         BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
273                    psk_key);
274         return 0;
275     }
276     if ((unsigned long)key_len > (unsigned long)max_psk_len) {
277         BIO_printf(bio_err,
278                    "psk buffer of callback is too small (%d) for key (%ld)\n",
279                    max_psk_len, key_len);
280         OPENSSL_free(key);
281         return 0;
282     }
283 
284     memcpy(psk, key, key_len);
285     OPENSSL_free(key);
286 
287     if (c_debug)
288         BIO_printf(bio_c_out, "created PSK len=%ld\n", key_len);
289 
290     return key_len;
291  out_err:
292     if (c_debug)
293         BIO_printf(bio_err, "Error in PSK client callback\n");
294     return 0;
295 }
296 #endif
297 
298 static void sc_usage(void)
299 {
300     BIO_printf(bio_err, "usage: s_client args\n");
301     BIO_printf(bio_err, "\n");
302     BIO_printf(bio_err, " -host host     - use -connect instead\n");
303     BIO_printf(bio_err, " -port port     - use -connect instead\n");
304     BIO_printf(bio_err,
305                " -connect host:port - who to connect to (default is %s:%s)\n",
306                SSL_HOST_NAME, PORT_STR);
307     BIO_printf(bio_err,
308                " -verify_hostname host - check peer certificate matches \"host\"\n");
309     BIO_printf(bio_err,
310                " -verify_email email - check peer certificate matches \"email\"\n");
311     BIO_printf(bio_err,
312                " -verify_ip ipaddr - check peer certificate matches \"ipaddr\"\n");
313 
314     BIO_printf(bio_err,
315                " -verify arg   - turn on peer certificate verification\n");
316     BIO_printf(bio_err,
317                " -verify_return_error - return verification errors\n");
318     BIO_printf(bio_err,
319                " -cert arg     - certificate file to use, PEM format assumed\n");
320     BIO_printf(bio_err,
321                " -certform arg - certificate format (PEM or DER) PEM default\n");
322     BIO_printf(bio_err,
323                " -key arg      - Private key file to use, in cert file if\n");
324     BIO_printf(bio_err, "                 not specified but cert file is.\n");
325     BIO_printf(bio_err,
326                " -keyform arg  - key format (PEM or DER) PEM default\n");
327     BIO_printf(bio_err,
328                " -pass arg     - private key file pass phrase source\n");
329     BIO_printf(bio_err, " -CApath arg   - PEM format directory of CA's\n");
330     BIO_printf(bio_err, " -CAfile arg   - PEM format file of CA's\n");
331     BIO_printf(bio_err,
332                " -no_alt_chains - only ever use the first certificate chain found\n");
333     BIO_printf(bio_err,
334                " -reconnect    - Drop and re-make the connection with the same Session-ID\n");
335     BIO_printf(bio_err,
336                " -pause        - sleep(1) after each read(2) and write(2) system call\n");
337     BIO_printf(bio_err,
338                " -prexit       - print session information even on connection failure\n");
339     BIO_printf(bio_err,
340                " -showcerts    - Show all certificates sent by the server\n");
341     BIO_printf(bio_err, " -debug        - extra output\n");
342 #ifdef WATT32
343     BIO_printf(bio_err, " -wdebug       - WATT-32 tcp debugging\n");
344 #endif
345     BIO_printf(bio_err, " -msg          - Show protocol messages\n");
346     BIO_printf(bio_err, " -nbio_test    - more ssl protocol testing\n");
347     BIO_printf(bio_err, " -state        - print the 'ssl' states\n");
348 #ifdef FIONBIO
349     BIO_printf(bio_err, " -nbio         - Run with non-blocking IO\n");
350 #endif
351     BIO_printf(bio_err,
352                " -crlf         - convert LF from terminal into CRLF\n");
353     BIO_printf(bio_err, " -quiet        - no s_client output\n");
354     BIO_printf(bio_err,
355                " -ign_eof      - ignore input eof (default when -quiet)\n");
356     BIO_printf(bio_err, " -no_ign_eof   - don't ignore input eof\n");
357 #ifndef OPENSSL_NO_PSK
358     BIO_printf(bio_err, " -psk_identity arg - PSK identity\n");
359     BIO_printf(bio_err, " -psk arg      - PSK in hex (without 0x)\n");
360 # ifndef OPENSSL_NO_JPAKE
361     BIO_printf(bio_err, " -jpake arg    - JPAKE secret to use\n");
362 # endif
363 #endif
364 #ifndef OPENSSL_NO_SRP
365     BIO_printf(bio_err,
366                " -srpuser user     - SRP authentification for 'user'\n");
367     BIO_printf(bio_err, " -srppass arg      - password for 'user'\n");
368     BIO_printf(bio_err,
369                " -srp_lateuser     - SRP username into second ClientHello message\n");
370     BIO_printf(bio_err,
371                " -srp_moregroups   - Tolerate other than the known g N values.\n");
372     BIO_printf(bio_err,
373                " -srp_strength int - minimal length in bits for N (default %d).\n",
374                SRP_MINIMAL_N);
375 #endif
376     BIO_printf(bio_err, " -ssl2         - just use SSLv2\n");
377 #ifndef OPENSSL_NO_SSL3_METHOD
378     BIO_printf(bio_err, " -ssl3         - just use SSLv3\n");
379 #endif
380     BIO_printf(bio_err, " -tls1_2       - just use TLSv1.2\n");
381     BIO_printf(bio_err, " -tls1_1       - just use TLSv1.1\n");
382     BIO_printf(bio_err, " -tls1         - just use TLSv1\n");
383     BIO_printf(bio_err, " -dtls1        - just use DTLSv1\n");
384     BIO_printf(bio_err, " -fallback_scsv - send TLS_FALLBACK_SCSV\n");
385     BIO_printf(bio_err, " -mtu          - set the link layer MTU\n");
386     BIO_printf(bio_err,
387                " -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
388     BIO_printf(bio_err,
389                " -bugs         - Switch on all SSL implementation bug workarounds\n");
390     BIO_printf(bio_err,
391                " -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
392     BIO_printf(bio_err,
393                "                 command to see what is available\n");
394     BIO_printf(bio_err,
395                " -starttls prot - use the STARTTLS command before starting TLS\n");
396     BIO_printf(bio_err,
397                "                 for those protocols that support it, where\n");
398     BIO_printf(bio_err,
399                "                 'prot' defines which one to assume.  Currently,\n");
400     BIO_printf(bio_err,
401                "                 only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
402     BIO_printf(bio_err, "                 are supported.\n");
403 #ifndef OPENSSL_NO_ENGINE
404     BIO_printf(bio_err,
405                " -engine id    - Initialise and use the specified engine\n");
406 #endif
407     BIO_printf(bio_err, " -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR,
408                LIST_SEPARATOR_CHAR);
409     BIO_printf(bio_err, " -sess_out arg - file to write SSL session to\n");
410     BIO_printf(bio_err, " -sess_in arg  - file to read SSL session from\n");
411 #ifndef OPENSSL_NO_TLSEXT
412     BIO_printf(bio_err,
413                " -servername host  - Set TLS extension servername in ClientHello\n");
414     BIO_printf(bio_err,
415                " -tlsextdebug      - hex dump of all TLS extensions received\n");
416     BIO_printf(bio_err,
417                " -status           - request certificate status from server\n");
418     BIO_printf(bio_err,
419                " -no_ticket        - disable use of RFC4507bis session tickets\n");
420     BIO_printf(bio_err,
421                " -serverinfo types - send empty ClientHello extensions (comma-separated numbers)\n");
422     BIO_printf(bio_err,
423                " -curves arg       - Elliptic curves to advertise (colon-separated list)\n");
424     BIO_printf(bio_err,
425                " -sigalgs arg      - Signature algorithms to support (colon-separated list)\n");
426     BIO_printf(bio_err,
427                " -client_sigalgs arg - Signature algorithms to support for client\n");
428     BIO_printf(bio_err,
429                "                       certificate authentication (colon-separated list)\n");
430 #endif
431 #ifndef OPENSSL_NO_NEXTPROTONEG
432     BIO_printf(bio_err,
433                " -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n");
434 #endif
435     BIO_printf(bio_err,
436                " -alpn arg         - enable ALPN extension, considering named protocols supported (comma-separated list)\n");
437     BIO_printf(bio_err,
438                " -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
439 #ifndef OPENSSL_NO_SRTP
440     BIO_printf(bio_err,
441                " -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
442 #endif
443     BIO_printf(bio_err,
444                " -keymatexport label   - Export keying material using label\n");
445     BIO_printf(bio_err,
446                " -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
447 }
448 
449 #ifndef OPENSSL_NO_TLSEXT
450 
451 /* This is a context that we pass to callbacks */
452 typedef struct tlsextctx_st {
453     BIO *biodebug;
454     int ack;
455 } tlsextctx;
456 
457 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
458 {
459     tlsextctx *p = (tlsextctx *) arg;
460     const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
461     if (SSL_get_servername_type(s) != -1)
462         p->ack = !SSL_session_reused(s) && hn != NULL;
463     else
464         BIO_printf(bio_err, "Can't use SSL_get_servername\n");
465 
466     return SSL_TLSEXT_ERR_OK;
467 }
468 
469 # ifndef OPENSSL_NO_SRP
470 
471 /* This is a context that we pass to all callbacks */
472 typedef struct srp_arg_st {
473     char *srppassin;
474     char *srplogin;
475     int msg;                    /* copy from c_msg */
476     int debug;                  /* copy from c_debug */
477     int amp;                    /* allow more groups */
478     int strength /* minimal size for N */ ;
479 } SRP_ARG;
480 
481 #  define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
482 
483 static int srp_Verify_N_and_g(BIGNUM *N, BIGNUM *g)
484 {
485     BN_CTX *bn_ctx = BN_CTX_new();
486     BIGNUM *p = BN_new();
487     BIGNUM *r = BN_new();
488     int ret =
489         g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
490         BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
491         p != NULL && BN_rshift1(p, N) &&
492         /* p = (N-1)/2 */
493         BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
494         r != NULL &&
495         /* verify g^((N-1)/2) == -1 (mod N) */
496         BN_mod_exp(r, g, p, N, bn_ctx) &&
497         BN_add_word(r, 1) && BN_cmp(r, N) == 0;
498 
499     if (r)
500         BN_free(r);
501     if (p)
502         BN_free(p);
503     if (bn_ctx)
504         BN_CTX_free(bn_ctx);
505     return ret;
506 }
507 
508 /*-
509  * This callback is used here for two purposes:
510  * - extended debugging
511  * - making some primality tests for unknown groups
512  * The callback is only called for a non default group.
513  *
514  * An application does not need the call back at all if
515  * only the stanard groups are used.  In real life situations,
516  * client and server already share well known groups,
517  * thus there is no need to verify them.
518  * Furthermore, in case that a server actually proposes a group that
519  * is not one of those defined in RFC 5054, it is more appropriate
520  * to add the group to a static list and then compare since
521  * primality tests are rather cpu consuming.
522  */
523 
524 static int MS_CALLBACK ssl_srp_verify_param_cb(SSL *s, void *arg)
525 {
526     SRP_ARG *srp_arg = (SRP_ARG *)arg;
527     BIGNUM *N = NULL, *g = NULL;
528     if (!(N = SSL_get_srp_N(s)) || !(g = SSL_get_srp_g(s)))
529         return 0;
530     if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1) {
531         BIO_printf(bio_err, "SRP parameters:\n");
532         BIO_printf(bio_err, "\tN=");
533         BN_print(bio_err, N);
534         BIO_printf(bio_err, "\n\tg=");
535         BN_print(bio_err, g);
536         BIO_printf(bio_err, "\n");
537     }
538 
539     if (SRP_check_known_gN_param(g, N))
540         return 1;
541 
542     if (srp_arg->amp == 1) {
543         if (srp_arg->debug)
544             BIO_printf(bio_err,
545                        "SRP param N and g are not known params, going to check deeper.\n");
546 
547         /*
548          * The srp_moregroups is a real debugging feature. Implementors
549          * should rather add the value to the known ones. The minimal size
550          * has already been tested.
551          */
552         if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N, g))
553             return 1;
554     }
555     BIO_printf(bio_err, "SRP param N and g rejected.\n");
556     return 0;
557 }
558 
559 #  define PWD_STRLEN 1024
560 
561 static char *MS_CALLBACK ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
562 {
563     SRP_ARG *srp_arg = (SRP_ARG *)arg;
564     char *pass = (char *)OPENSSL_malloc(PWD_STRLEN + 1);
565     PW_CB_DATA cb_tmp;
566     int l;
567 
568     if (!pass) {
569         BIO_printf(bio_err, "Malloc failure\n");
570         return NULL;
571     }
572 
573     cb_tmp.password = (char *)srp_arg->srppassin;
574     cb_tmp.prompt_info = "SRP user";
575     if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp)) < 0) {
576         BIO_printf(bio_err, "Can't read Password\n");
577         OPENSSL_free(pass);
578         return NULL;
579     }
580     *(pass + l) = '\0';
581 
582     return pass;
583 }
584 
585 # endif
586 # ifndef OPENSSL_NO_SRTP
587 char *srtp_profiles = NULL;
588 # endif
589 
590 # ifndef OPENSSL_NO_NEXTPROTONEG
591 /* This the context that we pass to next_proto_cb */
592 typedef struct tlsextnextprotoctx_st {
593     unsigned char *data;
594     unsigned short len;
595     int status;
596 } tlsextnextprotoctx;
597 
598 static tlsextnextprotoctx next_proto;
599 
600 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen,
601                          const unsigned char *in, unsigned int inlen,
602                          void *arg)
603 {
604     tlsextnextprotoctx *ctx = arg;
605 
606     if (!c_quiet) {
607         /* We can assume that |in| is syntactically valid. */
608         unsigned i;
609         BIO_printf(bio_c_out, "Protocols advertised by server: ");
610         for (i = 0; i < inlen;) {
611             if (i)
612                 BIO_write(bio_c_out, ", ", 2);
613             BIO_write(bio_c_out, &in[i + 1], in[i]);
614             i += in[i] + 1;
615         }
616         BIO_write(bio_c_out, "\n", 1);
617     }
618 
619     ctx->status =
620         SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
621     return SSL_TLSEXT_ERR_OK;
622 }
623 # endif                         /* ndef OPENSSL_NO_NEXTPROTONEG */
624 
625 static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
626                                    const unsigned char *in, size_t inlen,
627                                    int *al, void *arg)
628 {
629     char pem_name[100];
630     unsigned char ext_buf[4 + 65536];
631 
632     /* Reconstruct the type/len fields prior to extension data */
633     inlen &= 0xffff; /* for formal memcpy correctness */
634     ext_buf[0] = (unsigned char)(ext_type >> 8);
635     ext_buf[1] = (unsigned char)(ext_type);
636     ext_buf[2] = (unsigned char)(inlen >> 8);
637     ext_buf[3] = (unsigned char)(inlen);
638     memcpy(ext_buf + 4, in, inlen);
639 
640     BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d",
641                  ext_type);
642     PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen);
643     return 1;
644 }
645 
646 #endif
647 
648 enum {
649     PROTO_OFF = 0,
650     PROTO_SMTP,
651     PROTO_POP3,
652     PROTO_IMAP,
653     PROTO_FTP,
654     PROTO_XMPP
655 };
656 
657 int MAIN(int, char **);
658 
659 int MAIN(int argc, char **argv)
660 {
661     int build_chain = 0;
662     SSL *con = NULL;
663 #ifndef OPENSSL_NO_KRB5
664     KSSL_CTX *kctx;
665 #endif
666     int s, k, width, state = 0;
667     char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL;
668     int cbuf_len, cbuf_off;
669     int sbuf_len, sbuf_off;
670     fd_set readfds, writefds;
671     short port = PORT;
672     int full_log = 1;
673     char *host = SSL_HOST_NAME;
674     char *cert_file = NULL, *key_file = NULL, *chain_file = NULL;
675     int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
676     char *passarg = NULL, *pass = NULL;
677     X509 *cert = NULL;
678     EVP_PKEY *key = NULL;
679     STACK_OF(X509) *chain = NULL;
680     char *CApath = NULL, *CAfile = NULL;
681     char *chCApath = NULL, *chCAfile = NULL;
682     char *vfyCApath = NULL, *vfyCAfile = NULL;
683     int reconnect = 0, badop = 0, verify = SSL_VERIFY_NONE;
684     int crlf = 0;
685     int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
686     SSL_CTX *ctx = NULL;
687     int ret = 1, in_init = 1, i, nbio_test = 0;
688     int starttls_proto = PROTO_OFF;
689     int prexit = 0;
690     X509_VERIFY_PARAM *vpm = NULL;
691     int badarg = 0;
692     const SSL_METHOD *meth = NULL;
693     int socket_type = SOCK_STREAM;
694     BIO *sbio;
695     char *inrand = NULL;
696     int mbuf_len = 0;
697     struct timeval timeout, *timeoutp;
698     char *engine_id = NULL;
699     ENGINE *e = NULL;
700 #ifndef OPENSSL_NO_ENGINE
701     char *ssl_client_engine_id = NULL;
702     ENGINE *ssl_client_engine = NULL;
703 #endif
704 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
705     struct timeval tv;
706 # if defined(OPENSSL_SYS_BEOS_R5)
707     int stdin_set = 0;
708 # endif
709 #endif
710 #ifndef OPENSSL_NO_TLSEXT
711     char *servername = NULL;
712     tlsextctx tlsextcbp = { NULL, 0 };
713 # ifndef OPENSSL_NO_NEXTPROTONEG
714     const char *next_proto_neg_in = NULL;
715 # endif
716     const char *alpn_in = NULL;
717 # define MAX_SI_TYPES 100
718     unsigned short serverinfo_types[MAX_SI_TYPES];
719     int serverinfo_types_count = 0;
720 #endif
721     char *sess_in = NULL;
722     char *sess_out = NULL;
723     struct sockaddr peer;
724     int peerlen = sizeof(peer);
725     int fallback_scsv = 0;
726     int enable_timeouts = 0;
727     long socket_mtu = 0;
728 #ifndef OPENSSL_NO_JPAKE
729     static char *jpake_secret = NULL;
730 # define no_jpake !jpake_secret
731 #else
732 # define no_jpake 1
733 #endif
734 #ifndef OPENSSL_NO_SRP
735     char *srppass = NULL;
736     int srp_lateuser = 0;
737     SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 };
738 #endif
739     SSL_EXCERT *exc = NULL;
740 
741     SSL_CONF_CTX *cctx = NULL;
742     STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
743 
744     char *crl_file = NULL;
745     int crl_format = FORMAT_PEM;
746     int crl_download = 0;
747     STACK_OF(X509_CRL) *crls = NULL;
748     int prot_opt = 0, no_prot_opt = 0;
749 
750     meth = SSLv23_client_method();
751 
752     apps_startup();
753     c_Pause = 0;
754     c_quiet = 0;
755     c_ign_eof = 0;
756     c_debug = 0;
757     c_msg = 0;
758     c_showcerts = 0;
759 
760     if (bio_err == NULL)
761         bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
762 
763     if (!load_config(bio_err, NULL))
764         goto end;
765 
766     cctx = SSL_CONF_CTX_new();
767     if (!cctx)
768         goto end;
769     SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT);
770     SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CMDLINE);
771 
772     if (((cbuf = OPENSSL_malloc(BUFSIZZ)) == NULL) ||
773         ((sbuf = OPENSSL_malloc(BUFSIZZ)) == NULL) ||
774         ((mbuf = OPENSSL_malloc(BUFSIZZ)) == NULL)) {
775         BIO_printf(bio_err, "out of memory\n");
776         goto end;
777     }
778 
779     verify_depth = 0;
780     verify_error = X509_V_OK;
781 #ifdef FIONBIO
782     c_nbio = 0;
783 #endif
784 
785     argc--;
786     argv++;
787     while (argc >= 1) {
788         if (strcmp(*argv, "-host") == 0) {
789             if (--argc < 1)
790                 goto bad;
791             host = *(++argv);
792         } else if (strcmp(*argv, "-port") == 0) {
793             if (--argc < 1)
794                 goto bad;
795             port = atoi(*(++argv));
796             if (port == 0)
797                 goto bad;
798         } else if (strcmp(*argv, "-connect") == 0) {
799             if (--argc < 1)
800                 goto bad;
801             if (!extract_host_port(*(++argv), &host, NULL, &port))
802                 goto bad;
803         } else if (strcmp(*argv, "-verify") == 0) {
804             verify = SSL_VERIFY_PEER;
805             if (--argc < 1)
806                 goto bad;
807             verify_depth = atoi(*(++argv));
808             if (!c_quiet)
809                 BIO_printf(bio_err, "verify depth is %d\n", verify_depth);
810         } else if (strcmp(*argv, "-cert") == 0) {
811             if (--argc < 1)
812                 goto bad;
813             cert_file = *(++argv);
814         } else if (strcmp(*argv, "-CRL") == 0) {
815             if (--argc < 1)
816                 goto bad;
817             crl_file = *(++argv);
818         } else if (strcmp(*argv, "-crl_download") == 0)
819             crl_download = 1;
820         else if (strcmp(*argv, "-sess_out") == 0) {
821             if (--argc < 1)
822                 goto bad;
823             sess_out = *(++argv);
824         } else if (strcmp(*argv, "-sess_in") == 0) {
825             if (--argc < 1)
826                 goto bad;
827             sess_in = *(++argv);
828         } else if (strcmp(*argv, "-certform") == 0) {
829             if (--argc < 1)
830                 goto bad;
831             cert_format = str2fmt(*(++argv));
832         } else if (strcmp(*argv, "-CRLform") == 0) {
833             if (--argc < 1)
834                 goto bad;
835             crl_format = str2fmt(*(++argv));
836         } else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) {
837             if (badarg)
838                 goto bad;
839             continue;
840         } else if (strcmp(*argv, "-verify_return_error") == 0)
841             verify_return_error = 1;
842         else if (strcmp(*argv, "-verify_quiet") == 0)
843             verify_quiet = 1;
844         else if (strcmp(*argv, "-brief") == 0) {
845             c_brief = 1;
846             verify_quiet = 1;
847             c_quiet = 1;
848         } else if (args_excert(&argv, &argc, &badarg, bio_err, &exc)) {
849             if (badarg)
850                 goto bad;
851             continue;
852         } else if (args_ssl(&argv, &argc, cctx, &badarg, bio_err, &ssl_args,
853                             &no_prot_opt)) {
854             if (badarg)
855                 goto bad;
856             continue;
857         } else if (strcmp(*argv, "-prexit") == 0)
858             prexit = 1;
859         else if (strcmp(*argv, "-crlf") == 0)
860             crlf = 1;
861         else if (strcmp(*argv, "-quiet") == 0) {
862             c_quiet = 1;
863             c_ign_eof = 1;
864         } else if (strcmp(*argv, "-ign_eof") == 0)
865             c_ign_eof = 1;
866         else if (strcmp(*argv, "-no_ign_eof") == 0)
867             c_ign_eof = 0;
868         else if (strcmp(*argv, "-pause") == 0)
869             c_Pause = 1;
870         else if (strcmp(*argv, "-debug") == 0)
871             c_debug = 1;
872 #ifndef OPENSSL_NO_TLSEXT
873         else if (strcmp(*argv, "-tlsextdebug") == 0)
874             c_tlsextdebug = 1;
875         else if (strcmp(*argv, "-status") == 0)
876             c_status_req = 1;
877 #endif
878 #ifdef WATT32
879         else if (strcmp(*argv, "-wdebug") == 0)
880             dbug_init();
881 #endif
882         else if (strcmp(*argv, "-msg") == 0)
883             c_msg = 1;
884         else if (strcmp(*argv, "-msgfile") == 0) {
885             if (--argc < 1)
886                 goto bad;
887             bio_c_msg = BIO_new_file(*(++argv), "w");
888         }
889 #ifndef OPENSSL_NO_SSL_TRACE
890         else if (strcmp(*argv, "-trace") == 0)
891             c_msg = 2;
892 #endif
893         else if (strcmp(*argv, "-showcerts") == 0)
894             c_showcerts = 1;
895         else if (strcmp(*argv, "-nbio_test") == 0)
896             nbio_test = 1;
897         else if (strcmp(*argv, "-state") == 0)
898             state = 1;
899 #ifndef OPENSSL_NO_PSK
900         else if (strcmp(*argv, "-psk_identity") == 0) {
901             if (--argc < 1)
902                 goto bad;
903             psk_identity = *(++argv);
904         } else if (strcmp(*argv, "-psk") == 0) {
905             size_t j;
906 
907             if (--argc < 1)
908                 goto bad;
909             psk_key = *(++argv);
910             for (j = 0; j < strlen(psk_key); j++) {
911                 if (isxdigit((unsigned char)psk_key[j]))
912                     continue;
913                 BIO_printf(bio_err, "Not a hex number '%s'\n", *argv);
914                 goto bad;
915             }
916         }
917 #endif
918 #ifndef OPENSSL_NO_SRP
919         else if (strcmp(*argv, "-srpuser") == 0) {
920             if (--argc < 1)
921                 goto bad;
922             srp_arg.srplogin = *(++argv);
923             meth = TLSv1_client_method();
924         } else if (strcmp(*argv, "-srppass") == 0) {
925             if (--argc < 1)
926                 goto bad;
927             srppass = *(++argv);
928             meth = TLSv1_client_method();
929         } else if (strcmp(*argv, "-srp_strength") == 0) {
930             if (--argc < 1)
931                 goto bad;
932             srp_arg.strength = atoi(*(++argv));
933             BIO_printf(bio_err, "SRP minimal length for N is %d\n",
934                        srp_arg.strength);
935             meth = TLSv1_client_method();
936         } else if (strcmp(*argv, "-srp_lateuser") == 0) {
937             srp_lateuser = 1;
938             meth = TLSv1_client_method();
939         } else if (strcmp(*argv, "-srp_moregroups") == 0) {
940             srp_arg.amp = 1;
941             meth = TLSv1_client_method();
942         }
943 #endif
944 #ifndef OPENSSL_NO_SSL2
945         else if (strcmp(*argv, "-ssl2") == 0) {
946             meth = SSLv2_client_method();
947             prot_opt++;
948         }
949 #endif
950 #ifndef OPENSSL_NO_SSL3_METHOD
951         else if (strcmp(*argv, "-ssl3") == 0) {
952             meth = SSLv3_client_method();
953             prot_opt++;
954         }
955 #endif
956 #ifndef OPENSSL_NO_TLS1
957         else if (strcmp(*argv, "-tls1_2") == 0) {
958             meth = TLSv1_2_client_method();
959             prot_opt++;
960         } else if (strcmp(*argv, "-tls1_1") == 0) {
961             meth = TLSv1_1_client_method();
962             prot_opt++;
963         } else if (strcmp(*argv, "-tls1") == 0) {
964             meth = TLSv1_client_method();
965             prot_opt++;
966         }
967 #endif
968 #ifndef OPENSSL_NO_DTLS1
969         else if (strcmp(*argv, "-dtls") == 0) {
970             meth = DTLS_client_method();
971             socket_type = SOCK_DGRAM;
972             prot_opt++;
973         } else if (strcmp(*argv, "-dtls1") == 0) {
974             meth = DTLSv1_client_method();
975             socket_type = SOCK_DGRAM;
976             prot_opt++;
977         } else if (strcmp(*argv, "-dtls1_2") == 0) {
978             meth = DTLSv1_2_client_method();
979             socket_type = SOCK_DGRAM;
980             prot_opt++;
981         } else if (strcmp(*argv, "-timeout") == 0)
982             enable_timeouts = 1;
983         else if (strcmp(*argv, "-mtu") == 0) {
984             if (--argc < 1)
985                 goto bad;
986             socket_mtu = atol(*(++argv));
987         }
988 #endif
989         else if (strcmp(*argv, "-fallback_scsv") == 0) {
990             fallback_scsv = 1;
991         } else if (strcmp(*argv, "-keyform") == 0) {
992             if (--argc < 1)
993                 goto bad;
994             key_format = str2fmt(*(++argv));
995         } else if (strcmp(*argv, "-pass") == 0) {
996             if (--argc < 1)
997                 goto bad;
998             passarg = *(++argv);
999         } else if (strcmp(*argv, "-cert_chain") == 0) {
1000             if (--argc < 1)
1001                 goto bad;
1002             chain_file = *(++argv);
1003         } else if (strcmp(*argv, "-key") == 0) {
1004             if (--argc < 1)
1005                 goto bad;
1006             key_file = *(++argv);
1007         } else if (strcmp(*argv, "-reconnect") == 0) {
1008             reconnect = 5;
1009         } else if (strcmp(*argv, "-CApath") == 0) {
1010             if (--argc < 1)
1011                 goto bad;
1012             CApath = *(++argv);
1013         } else if (strcmp(*argv, "-chainCApath") == 0) {
1014             if (--argc < 1)
1015                 goto bad;
1016             chCApath = *(++argv);
1017         } else if (strcmp(*argv, "-verifyCApath") == 0) {
1018             if (--argc < 1)
1019                 goto bad;
1020             vfyCApath = *(++argv);
1021         } else if (strcmp(*argv, "-build_chain") == 0)
1022             build_chain = 1;
1023         else if (strcmp(*argv, "-CAfile") == 0) {
1024             if (--argc < 1)
1025                 goto bad;
1026             CAfile = *(++argv);
1027         } else if (strcmp(*argv, "-chainCAfile") == 0) {
1028             if (--argc < 1)
1029                 goto bad;
1030             chCAfile = *(++argv);
1031         } else if (strcmp(*argv, "-verifyCAfile") == 0) {
1032             if (--argc < 1)
1033                 goto bad;
1034             vfyCAfile = *(++argv);
1035         }
1036 #ifndef OPENSSL_NO_TLSEXT
1037 # ifndef OPENSSL_NO_NEXTPROTONEG
1038         else if (strcmp(*argv, "-nextprotoneg") == 0) {
1039             if (--argc < 1)
1040                 goto bad;
1041             next_proto_neg_in = *(++argv);
1042         }
1043 # endif
1044         else if (strcmp(*argv, "-alpn") == 0) {
1045             if (--argc < 1)
1046                 goto bad;
1047             alpn_in = *(++argv);
1048         } else if (strcmp(*argv, "-serverinfo") == 0) {
1049             char *c;
1050             int start = 0;
1051             int len;
1052 
1053             if (--argc < 1)
1054                 goto bad;
1055             c = *(++argv);
1056             serverinfo_types_count = 0;
1057             len = strlen(c);
1058             for (i = 0; i <= len; ++i) {
1059                 if (i == len || c[i] == ',') {
1060                     serverinfo_types[serverinfo_types_count]
1061                         = atoi(c + start);
1062                     serverinfo_types_count++;
1063                     start = i + 1;
1064                 }
1065                 if (serverinfo_types_count == MAX_SI_TYPES)
1066                     break;
1067             }
1068         }
1069 #endif
1070 #ifdef FIONBIO
1071         else if (strcmp(*argv, "-nbio") == 0) {
1072             c_nbio = 1;
1073         }
1074 #endif
1075         else if (strcmp(*argv, "-starttls") == 0) {
1076             if (--argc < 1)
1077                 goto bad;
1078             ++argv;
1079             if (strcmp(*argv, "smtp") == 0)
1080                 starttls_proto = PROTO_SMTP;
1081             else if (strcmp(*argv, "pop3") == 0)
1082                 starttls_proto = PROTO_POP3;
1083             else if (strcmp(*argv, "imap") == 0)
1084                 starttls_proto = PROTO_IMAP;
1085             else if (strcmp(*argv, "ftp") == 0)
1086                 starttls_proto = PROTO_FTP;
1087             else if (strcmp(*argv, "xmpp") == 0)
1088                 starttls_proto = PROTO_XMPP;
1089             else
1090                 goto bad;
1091         }
1092 #ifndef OPENSSL_NO_ENGINE
1093         else if (strcmp(*argv, "-engine") == 0) {
1094             if (--argc < 1)
1095                 goto bad;
1096             engine_id = *(++argv);
1097         } else if (strcmp(*argv, "-ssl_client_engine") == 0) {
1098             if (--argc < 1)
1099                 goto bad;
1100             ssl_client_engine_id = *(++argv);
1101         }
1102 #endif
1103         else if (strcmp(*argv, "-rand") == 0) {
1104             if (--argc < 1)
1105                 goto bad;
1106             inrand = *(++argv);
1107         }
1108 #ifndef OPENSSL_NO_TLSEXT
1109         else if (strcmp(*argv, "-servername") == 0) {
1110             if (--argc < 1)
1111                 goto bad;
1112             servername = *(++argv);
1113             /* meth=TLSv1_client_method(); */
1114         }
1115 #endif
1116 #ifndef OPENSSL_NO_JPAKE
1117         else if (strcmp(*argv, "-jpake") == 0) {
1118             if (--argc < 1)
1119                 goto bad;
1120             jpake_secret = *++argv;
1121         }
1122 #endif
1123 #ifndef OPENSSL_NO_SRTP
1124         else if (strcmp(*argv, "-use_srtp") == 0) {
1125             if (--argc < 1)
1126                 goto bad;
1127             srtp_profiles = *(++argv);
1128         }
1129 #endif
1130         else if (strcmp(*argv, "-keymatexport") == 0) {
1131             if (--argc < 1)
1132                 goto bad;
1133             keymatexportlabel = *(++argv);
1134         } else if (strcmp(*argv, "-keymatexportlen") == 0) {
1135             if (--argc < 1)
1136                 goto bad;
1137             keymatexportlen = atoi(*(++argv));
1138             if (keymatexportlen == 0)
1139                 goto bad;
1140         } else {
1141             BIO_printf(bio_err, "unknown option %s\n", *argv);
1142             badop = 1;
1143             break;
1144         }
1145         argc--;
1146         argv++;
1147     }
1148     if (badop) {
1149  bad:
1150         sc_usage();
1151         goto end;
1152     }
1153 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1154     if (jpake_secret) {
1155         if (psk_key) {
1156             BIO_printf(bio_err, "Can't use JPAKE and PSK together\n");
1157             goto end;
1158         }
1159         psk_identity = "JPAKE";
1160     }
1161 #endif
1162 
1163     if (prot_opt > 1) {
1164         BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
1165         goto end;
1166     }
1167 
1168     if (prot_opt == 1 && no_prot_opt) {
1169         BIO_printf(bio_err, "Cannot supply both a protocol flag and "
1170                             "\"-no_<prot>\"\n");
1171         goto end;
1172     }
1173 
1174     OpenSSL_add_ssl_algorithms();
1175     SSL_load_error_strings();
1176 
1177 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1178     next_proto.status = -1;
1179     if (next_proto_neg_in) {
1180         next_proto.data =
1181             next_protos_parse(&next_proto.len, next_proto_neg_in);
1182         if (next_proto.data == NULL) {
1183             BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1184             goto end;
1185         }
1186     } else
1187         next_proto.data = NULL;
1188 #endif
1189 
1190     e = setup_engine(bio_err, engine_id, 1);
1191 #ifndef OPENSSL_NO_ENGINE
1192     if (ssl_client_engine_id) {
1193         ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
1194         if (!ssl_client_engine) {
1195             BIO_printf(bio_err, "Error getting client auth engine\n");
1196             goto end;
1197         }
1198     }
1199 #endif
1200     if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
1201         BIO_printf(bio_err, "Error getting password\n");
1202         goto end;
1203     }
1204 
1205     if (key_file == NULL)
1206         key_file = cert_file;
1207 
1208     if (key_file) {
1209 
1210         key = load_key(bio_err, key_file, key_format, 0, pass, e,
1211                        "client certificate private key file");
1212         if (!key) {
1213             ERR_print_errors(bio_err);
1214             goto end;
1215         }
1216 
1217     }
1218 
1219     if (cert_file) {
1220         cert = load_cert(bio_err, cert_file, cert_format,
1221                          NULL, e, "client certificate file");
1222 
1223         if (!cert) {
1224             ERR_print_errors(bio_err);
1225             goto end;
1226         }
1227     }
1228 
1229     if (chain_file) {
1230         chain = load_certs(bio_err, chain_file, FORMAT_PEM,
1231                            NULL, e, "client certificate chain");
1232         if (!chain)
1233             goto end;
1234     }
1235 
1236     if (crl_file) {
1237         X509_CRL *crl;
1238         crl = load_crl(crl_file, crl_format);
1239         if (!crl) {
1240             BIO_puts(bio_err, "Error loading CRL\n");
1241             ERR_print_errors(bio_err);
1242             goto end;
1243         }
1244         crls = sk_X509_CRL_new_null();
1245         if (!crls || !sk_X509_CRL_push(crls, crl)) {
1246             BIO_puts(bio_err, "Error adding CRL\n");
1247             ERR_print_errors(bio_err);
1248             X509_CRL_free(crl);
1249             goto end;
1250         }
1251     }
1252 
1253     if (!load_excert(&exc, bio_err))
1254         goto end;
1255 
1256     if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1257         && !RAND_status()) {
1258         BIO_printf(bio_err,
1259                    "warning, not much extra random data, consider using the -rand option\n");
1260     }
1261     if (inrand != NULL)
1262         BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
1263                    app_RAND_load_files(inrand));
1264 
1265     if (bio_c_out == NULL) {
1266         if (c_quiet && !c_debug) {
1267             bio_c_out = BIO_new(BIO_s_null());
1268             if (c_msg && !bio_c_msg)
1269                 bio_c_msg = BIO_new_fp(stdout, BIO_NOCLOSE);
1270         } else {
1271             if (bio_c_out == NULL)
1272                 bio_c_out = BIO_new_fp(stdout, BIO_NOCLOSE);
1273         }
1274     }
1275 #ifndef OPENSSL_NO_SRP
1276     if (!app_passwd(bio_err, srppass, NULL, &srp_arg.srppassin, NULL)) {
1277         BIO_printf(bio_err, "Error getting password\n");
1278         goto end;
1279     }
1280 #endif
1281 
1282     ctx = SSL_CTX_new(meth);
1283     if (ctx == NULL) {
1284         ERR_print_errors(bio_err);
1285         goto end;
1286     }
1287 
1288     if (vpm)
1289         SSL_CTX_set1_param(ctx, vpm);
1290 
1291     if (!args_ssl_call(ctx, bio_err, cctx, ssl_args, 1, no_jpake)) {
1292         ERR_print_errors(bio_err);
1293         goto end;
1294     }
1295 
1296     if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1297                          crls, crl_download)) {
1298         BIO_printf(bio_err, "Error loading store locations\n");
1299         ERR_print_errors(bio_err);
1300         goto end;
1301     }
1302 #ifndef OPENSSL_NO_ENGINE
1303     if (ssl_client_engine) {
1304         if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
1305             BIO_puts(bio_err, "Error setting client auth engine\n");
1306             ERR_print_errors(bio_err);
1307             ENGINE_free(ssl_client_engine);
1308             goto end;
1309         }
1310         ENGINE_free(ssl_client_engine);
1311     }
1312 #endif
1313 
1314 #ifndef OPENSSL_NO_PSK
1315 # ifdef OPENSSL_NO_JPAKE
1316     if (psk_key != NULL)
1317 # else
1318     if (psk_key != NULL || jpake_secret)
1319 # endif
1320     {
1321         if (c_debug)
1322             BIO_printf(bio_c_out,
1323                        "PSK key given or JPAKE in use, setting client callback\n");
1324         SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1325     }
1326 #endif
1327 #ifndef OPENSSL_NO_SRTP
1328     if (srtp_profiles != NULL)
1329         SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1330 #endif
1331     if (exc)
1332         ssl_ctx_set_excert(ctx, exc);
1333 
1334 #if !defined(OPENSSL_NO_TLSEXT)
1335 # if !defined(OPENSSL_NO_NEXTPROTONEG)
1336     if (next_proto.data)
1337         SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1338 # endif
1339     if (alpn_in) {
1340         unsigned short alpn_len;
1341         unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
1342 
1343         if (alpn == NULL) {
1344             BIO_printf(bio_err, "Error parsing -alpn argument\n");
1345             goto end;
1346         }
1347         SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len);
1348         OPENSSL_free(alpn);
1349     }
1350 #endif
1351 #ifndef OPENSSL_NO_TLSEXT
1352     for (i = 0; i < serverinfo_types_count; i++) {
1353         SSL_CTX_add_client_custom_ext(ctx,
1354                                       serverinfo_types[i],
1355                                       NULL, NULL, NULL,
1356                                       serverinfo_cli_parse_cb, NULL);
1357     }
1358 #endif
1359 
1360     if (state)
1361         SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1362 #if 0
1363     else
1364         SSL_CTX_set_cipher_list(ctx, getenv("SSL_CIPHER"));
1365 #endif
1366 
1367     SSL_CTX_set_verify(ctx, verify, verify_callback);
1368 
1369     if ((CAfile || CApath)
1370         && !SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) {
1371         ERR_print_errors(bio_err);
1372     }
1373     if (!SSL_CTX_set_default_verify_paths(ctx)) {
1374         ERR_print_errors(bio_err);
1375     }
1376 
1377     ssl_ctx_add_crls(ctx, crls, crl_download);
1378     if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain))
1379         goto end;
1380 
1381 #ifndef OPENSSL_NO_TLSEXT
1382     if (servername != NULL) {
1383         tlsextcbp.biodebug = bio_err;
1384         SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1385         SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1386     }
1387 # ifndef OPENSSL_NO_SRP
1388     if (srp_arg.srplogin) {
1389         if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) {
1390             BIO_printf(bio_err, "Unable to set SRP username\n");
1391             goto end;
1392         }
1393         srp_arg.msg = c_msg;
1394         srp_arg.debug = c_debug;
1395         SSL_CTX_set_srp_cb_arg(ctx, &srp_arg);
1396         SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1397         SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1398         if (c_msg || c_debug || srp_arg.amp == 0)
1399             SSL_CTX_set_srp_verify_param_callback(ctx,
1400                                                   ssl_srp_verify_param_cb);
1401     }
1402 # endif
1403 #endif
1404 
1405     con = SSL_new(ctx);
1406     if (sess_in) {
1407         SSL_SESSION *sess;
1408         BIO *stmp = BIO_new_file(sess_in, "r");
1409         if (!stmp) {
1410             BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1411             ERR_print_errors(bio_err);
1412             goto end;
1413         }
1414         sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1415         BIO_free(stmp);
1416         if (!sess) {
1417             BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1418             ERR_print_errors(bio_err);
1419             goto end;
1420         }
1421         SSL_set_session(con, sess);
1422         SSL_SESSION_free(sess);
1423     }
1424 
1425     if (fallback_scsv)
1426         SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
1427 
1428 #ifndef OPENSSL_NO_TLSEXT
1429     if (servername != NULL) {
1430         if (!SSL_set_tlsext_host_name(con, servername)) {
1431             BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
1432             ERR_print_errors(bio_err);
1433             goto end;
1434         }
1435     }
1436 #endif
1437 #ifndef OPENSSL_NO_KRB5
1438     if (con && (kctx = kssl_ctx_new()) != NULL) {
1439         SSL_set0_kssl_ctx(con, kctx);
1440         kssl_ctx_setstring(kctx, KSSL_SERVER, host);
1441     }
1442 #endif                          /* OPENSSL_NO_KRB5 */
1443 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
1444 #if 0
1445 # ifdef TLSEXT_TYPE_opaque_prf_input
1446     SSL_set_tlsext_opaque_prf_input(con, "Test client", 11);
1447 # endif
1448 #endif
1449 
1450  re_start:
1451 
1452     if (init_client(&s, host, port, socket_type) == 0) {
1453         BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error());
1454         SHUTDOWN(s);
1455         goto end;
1456     }
1457     BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s);
1458 
1459 #ifdef FIONBIO
1460     if (c_nbio) {
1461         unsigned long l = 1;
1462         BIO_printf(bio_c_out, "turning on non blocking io\n");
1463         if (BIO_socket_ioctl(s, FIONBIO, &l) < 0) {
1464             ERR_print_errors(bio_err);
1465             goto end;
1466         }
1467     }
1468 #endif
1469     if (c_Pause & 0x01)
1470         SSL_set_debug(con, 1);
1471 
1472     if (socket_type == SOCK_DGRAM) {
1473 
1474         sbio = BIO_new_dgram(s, BIO_NOCLOSE);
1475         if (getsockname(s, &peer, (void *)&peerlen) < 0) {
1476             BIO_printf(bio_err, "getsockname:errno=%d\n",
1477                        get_last_socket_error());
1478             SHUTDOWN(s);
1479             goto end;
1480         }
1481 
1482         (void)BIO_ctrl_set_connected(sbio, 1, &peer);
1483 
1484         if (enable_timeouts) {
1485             timeout.tv_sec = 0;
1486             timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1487             BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1488 
1489             timeout.tv_sec = 0;
1490             timeout.tv_usec = DGRAM_SND_TIMEOUT;
1491             BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1492         }
1493 
1494         if (socket_mtu) {
1495             if (socket_mtu < DTLS_get_link_min_mtu(con)) {
1496                 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
1497                            DTLS_get_link_min_mtu(con));
1498                 BIO_free(sbio);
1499                 goto shut;
1500             }
1501             SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1502             if (!DTLS_set_link_mtu(con, socket_mtu)) {
1503                 BIO_printf(bio_err, "Failed to set MTU\n");
1504                 BIO_free(sbio);
1505                 goto shut;
1506             }
1507         } else
1508             /* want to do MTU discovery */
1509             BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1510     } else
1511         sbio = BIO_new_socket(s, BIO_NOCLOSE);
1512 
1513     if (nbio_test) {
1514         BIO *test;
1515 
1516         test = BIO_new(BIO_f_nbio_test());
1517         sbio = BIO_push(test, sbio);
1518     }
1519 
1520     if (c_debug) {
1521         SSL_set_debug(con, 1);
1522         BIO_set_callback(sbio, bio_dump_callback);
1523         BIO_set_callback_arg(sbio, (char *)bio_c_out);
1524     }
1525     if (c_msg) {
1526 #ifndef OPENSSL_NO_SSL_TRACE
1527         if (c_msg == 2)
1528             SSL_set_msg_callback(con, SSL_trace);
1529         else
1530 #endif
1531             SSL_set_msg_callback(con, msg_cb);
1532         SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
1533     }
1534 #ifndef OPENSSL_NO_TLSEXT
1535     if (c_tlsextdebug) {
1536         SSL_set_tlsext_debug_callback(con, tlsext_cb);
1537         SSL_set_tlsext_debug_arg(con, bio_c_out);
1538     }
1539     if (c_status_req) {
1540         SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
1541         SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
1542         SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
1543 # if 0
1544         {
1545             STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
1546             OCSP_RESPID *id = OCSP_RESPID_new();
1547             id->value.byKey = ASN1_OCTET_STRING_new();
1548             id->type = V_OCSP_RESPID_KEY;
1549             ASN1_STRING_set(id->value.byKey, "Hello World", -1);
1550             sk_OCSP_RESPID_push(ids, id);
1551             SSL_set_tlsext_status_ids(con, ids);
1552         }
1553 # endif
1554     }
1555 #endif
1556 #ifndef OPENSSL_NO_JPAKE
1557     if (jpake_secret)
1558         jpake_client_auth(bio_c_out, sbio, jpake_secret);
1559 #endif
1560 
1561     SSL_set_bio(con, sbio, sbio);
1562     SSL_set_connect_state(con);
1563 
1564     /* ok, lets connect */
1565     if (fileno_stdin() > SSL_get_fd(con))
1566         width = fileno_stdin() + 1;
1567     else
1568         width = SSL_get_fd(con) + 1;
1569 
1570     read_tty = 1;
1571     write_tty = 0;
1572     tty_on = 0;
1573     read_ssl = 1;
1574     write_ssl = 1;
1575 
1576     cbuf_len = 0;
1577     cbuf_off = 0;
1578     sbuf_len = 0;
1579     sbuf_off = 0;
1580 
1581     /* This is an ugly hack that does a lot of assumptions */
1582     /*
1583      * We do have to handle multi-line responses which may come in a single
1584      * packet or not. We therefore have to use BIO_gets() which does need a
1585      * buffering BIO. So during the initial chitchat we do push a buffering
1586      * BIO into the chain that is removed again later on to not disturb the
1587      * rest of the s_client operation.
1588      */
1589     if (starttls_proto == PROTO_SMTP) {
1590         int foundit = 0;
1591         BIO *fbio = BIO_new(BIO_f_buffer());
1592         BIO_push(fbio, sbio);
1593         /* wait for multi-line response to end from SMTP */
1594         do {
1595             mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
1596         }
1597         while (mbuf_len > 3 && mbuf[3] == '-');
1598         /* STARTTLS command requires EHLO... */
1599         BIO_printf(fbio, "EHLO openssl.client.net\r\n");
1600         (void)BIO_flush(fbio);
1601         /* wait for multi-line response to end EHLO SMTP response */
1602         do {
1603             mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
1604             if (strstr(mbuf, "STARTTLS"))
1605                 foundit = 1;
1606         }
1607         while (mbuf_len > 3 && mbuf[3] == '-');
1608         (void)BIO_flush(fbio);
1609         BIO_pop(fbio);
1610         BIO_free(fbio);
1611         if (!foundit)
1612             BIO_printf(bio_err,
1613                        "didn't found starttls in server response,"
1614                        " try anyway...\n");
1615         BIO_printf(sbio, "STARTTLS\r\n");
1616         BIO_read(sbio, sbuf, BUFSIZZ);
1617     } else if (starttls_proto == PROTO_POP3) {
1618         BIO_read(sbio, mbuf, BUFSIZZ);
1619         BIO_printf(sbio, "STLS\r\n");
1620         BIO_read(sbio, sbuf, BUFSIZZ);
1621     } else if (starttls_proto == PROTO_IMAP) {
1622         int foundit = 0;
1623         BIO *fbio = BIO_new(BIO_f_buffer());
1624         BIO_push(fbio, sbio);
1625         BIO_gets(fbio, mbuf, BUFSIZZ);
1626         /* STARTTLS command requires CAPABILITY... */
1627         BIO_printf(fbio, ". CAPABILITY\r\n");
1628         (void)BIO_flush(fbio);
1629         /* wait for multi-line CAPABILITY response */
1630         do {
1631             mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
1632             if (strstr(mbuf, "STARTTLS"))
1633                 foundit = 1;
1634         }
1635         while (mbuf_len > 3 && mbuf[0] != '.');
1636         (void)BIO_flush(fbio);
1637         BIO_pop(fbio);
1638         BIO_free(fbio);
1639         if (!foundit)
1640             BIO_printf(bio_err,
1641                        "didn't found STARTTLS in server response,"
1642                        " try anyway...\n");
1643         BIO_printf(sbio, ". STARTTLS\r\n");
1644         BIO_read(sbio, sbuf, BUFSIZZ);
1645     } else if (starttls_proto == PROTO_FTP) {
1646         BIO *fbio = BIO_new(BIO_f_buffer());
1647         BIO_push(fbio, sbio);
1648         /* wait for multi-line response to end from FTP */
1649         do {
1650             mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
1651         }
1652         while (mbuf_len > 3 && mbuf[3] == '-');
1653         (void)BIO_flush(fbio);
1654         BIO_pop(fbio);
1655         BIO_free(fbio);
1656         BIO_printf(sbio, "AUTH TLS\r\n");
1657         BIO_read(sbio, sbuf, BUFSIZZ);
1658     }
1659     if (starttls_proto == PROTO_XMPP) {
1660         int seen = 0;
1661         BIO_printf(sbio, "<stream:stream "
1662                    "xmlns:stream='http://etherx.jabber.org/streams' "
1663                    "xmlns='jabber:client' to='%s' version='1.0'>", host);
1664         seen = BIO_read(sbio, mbuf, BUFSIZZ);
1665         mbuf[seen] = 0;
1666         while (!strstr
1667                (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")) {
1668             if (strstr(mbuf, "/stream:features>"))
1669                 goto shut;
1670             seen = BIO_read(sbio, mbuf, BUFSIZZ);
1671             if (seen <= 0)
1672                 goto shut;
1673             mbuf[seen] = 0;
1674         }
1675         BIO_printf(sbio,
1676                    "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
1677         seen = BIO_read(sbio, sbuf, BUFSIZZ);
1678         sbuf[seen] = 0;
1679         if (!strstr(sbuf, "<proceed"))
1680             goto shut;
1681         mbuf[0] = 0;
1682     }
1683 
1684     for (;;) {
1685         FD_ZERO(&readfds);
1686         FD_ZERO(&writefds);
1687 
1688         if ((SSL_version(con) == DTLS1_VERSION) &&
1689             DTLSv1_get_timeout(con, &timeout))
1690             timeoutp = &timeout;
1691         else
1692             timeoutp = NULL;
1693 
1694         if (SSL_in_init(con) && !SSL_total_renegotiations(con)) {
1695             in_init = 1;
1696             tty_on = 0;
1697         } else {
1698             tty_on = 1;
1699             if (in_init) {
1700                 in_init = 0;
1701 #if 0                           /* This test doesn't really work as intended
1702                                  * (needs to be fixed) */
1703 # ifndef OPENSSL_NO_TLSEXT
1704                 if (servername != NULL && !SSL_session_reused(con)) {
1705                     BIO_printf(bio_c_out,
1706                                "Server did %sacknowledge servername extension.\n",
1707                                tlsextcbp.ack ? "" : "not ");
1708                 }
1709 # endif
1710 #endif
1711                 if (sess_out) {
1712                     BIO *stmp = BIO_new_file(sess_out, "w");
1713                     if (stmp) {
1714                         PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1715                         BIO_free(stmp);
1716                     } else
1717                         BIO_printf(bio_err, "Error writing session file %s\n",
1718                                    sess_out);
1719                 }
1720                 if (c_brief) {
1721                     BIO_puts(bio_err, "CONNECTION ESTABLISHED\n");
1722                     print_ssl_summary(bio_err, con);
1723                 }
1724 
1725                 print_stuff(bio_c_out, con, full_log);
1726                 if (full_log > 0)
1727                     full_log--;
1728 
1729                 if (starttls_proto) {
1730                     BIO_printf(bio_err, "%s", mbuf);
1731                     /* We don't need to know any more */
1732                     starttls_proto = PROTO_OFF;
1733                 }
1734 
1735                 if (reconnect) {
1736                     reconnect--;
1737                     BIO_printf(bio_c_out,
1738                                "drop connection and then reconnect\n");
1739                     SSL_shutdown(con);
1740                     SSL_set_connect_state(con);
1741                     SHUTDOWN(SSL_get_fd(con));
1742                     goto re_start;
1743                 }
1744             }
1745         }
1746 
1747         ssl_pending = read_ssl && SSL_pending(con);
1748 
1749         if (!ssl_pending) {
1750 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
1751             if (tty_on) {
1752                 if (read_tty)
1753                     openssl_fdset(fileno_stdin(), &readfds);
1754 #if !defined(OPENSSL_SYS_VMS)
1755                 if (write_tty)
1756                     openssl_fdset(fileno_stdout(), &writefds);
1757 #endif
1758             }
1759             if (read_ssl)
1760                 openssl_fdset(SSL_get_fd(con), &readfds);
1761             if (write_ssl)
1762                 openssl_fdset(SSL_get_fd(con), &writefds);
1763 #else
1764             if (!tty_on || !write_tty) {
1765                 if (read_ssl)
1766                     openssl_fdset(SSL_get_fd(con), &readfds);
1767                 if (write_ssl)
1768                     openssl_fdset(SSL_get_fd(con), &writefds);
1769             }
1770 #endif
1771 /*-         printf("mode tty(%d %d%d) ssl(%d%d)\n",
1772                     tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1773 
1774             /*
1775              * Note: under VMS with SOCKETSHR the second parameter is
1776              * currently of type (int *) whereas under other systems it is
1777              * (void *) if you don't have a cast it will choke the compiler:
1778              * if you do have a cast then you can either go for (int *) or
1779              * (void *).
1780              */
1781 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1782             /*
1783              * Under Windows/DOS we make the assumption that we can always
1784              * write to the tty: therefore if we need to write to the tty we
1785              * just fall through. Otherwise we timeout the select every
1786              * second and see if there are any keypresses. Note: this is a
1787              * hack, in a proper Windows application we wouldn't do this.
1788              */
1789             i = 0;
1790             if (!write_tty) {
1791                 if (read_tty) {
1792                     tv.tv_sec = 1;
1793                     tv.tv_usec = 0;
1794                     i = select(width, (void *)&readfds, (void *)&writefds,
1795                                NULL, &tv);
1796 # if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1797                     if (!i && (!_kbhit() || !read_tty))
1798                         continue;
1799 # else
1800                     if (!i && (!((_kbhit())
1801                                  || (WAIT_OBJECT_0 ==
1802                                      WaitForSingleObject(GetStdHandle
1803                                                          (STD_INPUT_HANDLE),
1804                                                          0)))
1805                                || !read_tty))
1806                         continue;
1807 # endif
1808                 } else
1809                     i = select(width, (void *)&readfds, (void *)&writefds,
1810                                NULL, timeoutp);
1811             }
1812 #elif defined(OPENSSL_SYS_NETWARE)
1813             if (!write_tty) {
1814                 if (read_tty) {
1815                     tv.tv_sec = 1;
1816                     tv.tv_usec = 0;
1817                     i = select(width, (void *)&readfds, (void *)&writefds,
1818                                NULL, &tv);
1819                 } else
1820                     i = select(width, (void *)&readfds, (void *)&writefds,
1821                                NULL, timeoutp);
1822             }
1823 #elif defined(OPENSSL_SYS_BEOS_R5)
1824             /* Under BeOS-R5 the situation is similar to DOS */
1825             i = 0;
1826             stdin_set = 0;
1827             (void)fcntl(fileno_stdin(), F_SETFL, O_NONBLOCK);
1828             if (!write_tty) {
1829                 if (read_tty) {
1830                     tv.tv_sec = 1;
1831                     tv.tv_usec = 0;
1832                     i = select(width, (void *)&readfds, (void *)&writefds,
1833                                NULL, &tv);
1834                     if (read(fileno_stdin(), sbuf, 0) >= 0)
1835                         stdin_set = 1;
1836                     if (!i && (stdin_set != 1 || !read_tty))
1837                         continue;
1838                 } else
1839                     i = select(width, (void *)&readfds, (void *)&writefds,
1840                                NULL, timeoutp);
1841             }
1842             (void)fcntl(fileno_stdin(), F_SETFL, 0);
1843 #else
1844             i = select(width, (void *)&readfds, (void *)&writefds,
1845                        NULL, timeoutp);
1846 #endif
1847             if (i < 0) {
1848                 BIO_printf(bio_err, "bad select %d\n",
1849                            get_last_socket_error());
1850                 goto shut;
1851                 /* goto end; */
1852             }
1853         }
1854 
1855         if ((SSL_version(con) == DTLS1_VERSION)
1856             && DTLSv1_handle_timeout(con) > 0) {
1857             BIO_printf(bio_err, "TIMEOUT occured\n");
1858         }
1859 
1860         if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) {
1861             k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len);
1862             switch (SSL_get_error(con, k)) {
1863             case SSL_ERROR_NONE:
1864                 cbuf_off += k;
1865                 cbuf_len -= k;
1866                 if (k <= 0)
1867                     goto end;
1868                 /* we have done a  write(con,NULL,0); */
1869                 if (cbuf_len <= 0) {
1870                     read_tty = 1;
1871                     write_ssl = 0;
1872                 } else {        /* if (cbuf_len > 0) */
1873 
1874                     read_tty = 0;
1875                     write_ssl = 1;
1876                 }
1877                 break;
1878             case SSL_ERROR_WANT_WRITE:
1879                 BIO_printf(bio_c_out, "write W BLOCK\n");
1880                 write_ssl = 1;
1881                 read_tty = 0;
1882                 break;
1883             case SSL_ERROR_WANT_READ:
1884                 BIO_printf(bio_c_out, "write R BLOCK\n");
1885                 write_tty = 0;
1886                 read_ssl = 1;
1887                 write_ssl = 0;
1888                 break;
1889             case SSL_ERROR_WANT_X509_LOOKUP:
1890                 BIO_printf(bio_c_out, "write X BLOCK\n");
1891                 break;
1892             case SSL_ERROR_ZERO_RETURN:
1893                 if (cbuf_len != 0) {
1894                     BIO_printf(bio_c_out, "shutdown\n");
1895                     ret = 0;
1896                     goto shut;
1897                 } else {
1898                     read_tty = 1;
1899                     write_ssl = 0;
1900                     break;
1901                 }
1902 
1903             case SSL_ERROR_SYSCALL:
1904                 if ((k != 0) || (cbuf_len != 0)) {
1905                     BIO_printf(bio_err, "write:errno=%d\n",
1906                                get_last_socket_error());
1907                     goto shut;
1908                 } else {
1909                     read_tty = 1;
1910                     write_ssl = 0;
1911                 }
1912                 break;
1913             case SSL_ERROR_SSL:
1914                 ERR_print_errors(bio_err);
1915                 goto shut;
1916             }
1917         }
1918 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5) || defined(OPENSSL_SYS_VMS)
1919         /* Assume Windows/DOS/BeOS can always write */
1920         else if (!ssl_pending && write_tty)
1921 #else
1922         else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds))
1923 #endif
1924         {
1925 #ifdef CHARSET_EBCDIC
1926             ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len);
1927 #endif
1928             i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len);
1929 
1930             if (i <= 0) {
1931                 BIO_printf(bio_c_out, "DONE\n");
1932                 ret = 0;
1933                 goto shut;
1934                 /* goto end; */
1935             }
1936 
1937             sbuf_len -= i;;
1938             sbuf_off += i;
1939             if (sbuf_len <= 0) {
1940                 read_ssl = 1;
1941                 write_tty = 0;
1942             }
1943         } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) {
1944 #ifdef RENEG
1945             {
1946                 static int iiii;
1947                 if (++iiii == 52) {
1948                     SSL_renegotiate(con);
1949                     iiii = 0;
1950                 }
1951             }
1952 #endif
1953 #if 1
1954             k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
1955 #else
1956 /* Demo for pending and peek :-) */
1957             k = SSL_read(con, sbuf, 16);
1958             {
1959                 char zbuf[10240];
1960                 printf("read=%d pending=%d peek=%d\n", k, SSL_pending(con),
1961                        SSL_peek(con, zbuf, 10240));
1962             }
1963 #endif
1964 
1965             switch (SSL_get_error(con, k)) {
1966             case SSL_ERROR_NONE:
1967                 if (k <= 0)
1968                     goto end;
1969                 sbuf_off = 0;
1970                 sbuf_len = k;
1971 
1972                 read_ssl = 0;
1973                 write_tty = 1;
1974                 break;
1975             case SSL_ERROR_WANT_WRITE:
1976                 BIO_printf(bio_c_out, "read W BLOCK\n");
1977                 write_ssl = 1;
1978                 read_tty = 0;
1979                 break;
1980             case SSL_ERROR_WANT_READ:
1981                 BIO_printf(bio_c_out, "read R BLOCK\n");
1982                 write_tty = 0;
1983                 read_ssl = 1;
1984                 if ((read_tty == 0) && (write_ssl == 0))
1985                     write_ssl = 1;
1986                 break;
1987             case SSL_ERROR_WANT_X509_LOOKUP:
1988                 BIO_printf(bio_c_out, "read X BLOCK\n");
1989                 break;
1990             case SSL_ERROR_SYSCALL:
1991                 ret = get_last_socket_error();
1992                 if (c_brief)
1993                     BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
1994                 else
1995                     BIO_printf(bio_err, "read:errno=%d\n", ret);
1996                 goto shut;
1997             case SSL_ERROR_ZERO_RETURN:
1998                 BIO_printf(bio_c_out, "closed\n");
1999                 ret = 0;
2000                 goto shut;
2001             case SSL_ERROR_SSL:
2002                 ERR_print_errors(bio_err);
2003                 goto shut;
2004                 /* break; */
2005             }
2006         }
2007 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2008 # if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
2009         else if (_kbhit())
2010 # else
2011         else if ((_kbhit())
2012                  || (WAIT_OBJECT_0 ==
2013                      WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
2014 # endif
2015 #elif defined (OPENSSL_SYS_NETWARE)
2016         else if (_kbhit())
2017 #elif defined(OPENSSL_SYS_BEOS_R5)
2018         else if (stdin_set)
2019 #else
2020         else if (FD_ISSET(fileno_stdin(), &readfds))
2021 #endif
2022         {
2023             if (crlf) {
2024                 int j, lf_num;
2025 
2026                 i = raw_read_stdin(cbuf, BUFSIZZ / 2);
2027                 lf_num = 0;
2028                 /* both loops are skipped when i <= 0 */
2029                 for (j = 0; j < i; j++)
2030                     if (cbuf[j] == '\n')
2031                         lf_num++;
2032                 for (j = i - 1; j >= 0; j--) {
2033                     cbuf[j + lf_num] = cbuf[j];
2034                     if (cbuf[j] == '\n') {
2035                         lf_num--;
2036                         i++;
2037                         cbuf[j + lf_num] = '\r';
2038                     }
2039                 }
2040                 assert(lf_num == 0);
2041             } else
2042                 i = raw_read_stdin(cbuf, BUFSIZZ);
2043 
2044             if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q'))) {
2045                 BIO_printf(bio_err, "DONE\n");
2046                 ret = 0;
2047                 goto shut;
2048             }
2049 
2050             if ((!c_ign_eof) && (cbuf[0] == 'R')) {
2051                 BIO_printf(bio_err, "RENEGOTIATING\n");
2052                 SSL_renegotiate(con);
2053                 cbuf_len = 0;
2054             }
2055 #ifndef OPENSSL_NO_HEARTBEATS
2056             else if ((!c_ign_eof) && (cbuf[0] == 'B')) {
2057                 BIO_printf(bio_err, "HEARTBEATING\n");
2058                 SSL_heartbeat(con);
2059                 cbuf_len = 0;
2060             }
2061 #endif
2062             else {
2063                 cbuf_len = i;
2064                 cbuf_off = 0;
2065 #ifdef CHARSET_EBCDIC
2066                 ebcdic2ascii(cbuf, cbuf, i);
2067 #endif
2068             }
2069 
2070             write_ssl = 1;
2071             read_tty = 0;
2072         }
2073     }
2074 
2075     ret = 0;
2076  shut:
2077     if (in_init)
2078         print_stuff(bio_c_out, con, full_log);
2079     SSL_shutdown(con);
2080     SHUTDOWN(SSL_get_fd(con));
2081  end:
2082     if (con != NULL) {
2083         if (prexit != 0)
2084             print_stuff(bio_c_out, con, 1);
2085         SSL_free(con);
2086     }
2087 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2088     if (next_proto.data)
2089         OPENSSL_free(next_proto.data);
2090 #endif
2091     if (ctx != NULL)
2092         SSL_CTX_free(ctx);
2093     if (cert)
2094         X509_free(cert);
2095     if (crls)
2096         sk_X509_CRL_pop_free(crls, X509_CRL_free);
2097     if (key)
2098         EVP_PKEY_free(key);
2099     if (chain)
2100         sk_X509_pop_free(chain, X509_free);
2101     if (pass)
2102         OPENSSL_free(pass);
2103 #ifndef OPENSSL_NO_SRP
2104     OPENSSL_free(srp_arg.srppassin);
2105 #endif
2106     if (vpm)
2107         X509_VERIFY_PARAM_free(vpm);
2108     ssl_excert_free(exc);
2109     if (ssl_args)
2110         sk_OPENSSL_STRING_free(ssl_args);
2111     if (cctx)
2112         SSL_CONF_CTX_free(cctx);
2113 #ifndef OPENSSL_NO_JPAKE
2114     if (jpake_secret && psk_key)
2115         OPENSSL_free(psk_key);
2116 #endif
2117     if (cbuf != NULL) {
2118         OPENSSL_cleanse(cbuf, BUFSIZZ);
2119         OPENSSL_free(cbuf);
2120     }
2121     if (sbuf != NULL) {
2122         OPENSSL_cleanse(sbuf, BUFSIZZ);
2123         OPENSSL_free(sbuf);
2124     }
2125     if (mbuf != NULL) {
2126         OPENSSL_cleanse(mbuf, BUFSIZZ);
2127         OPENSSL_free(mbuf);
2128     }
2129     release_engine(e);
2130     if (bio_c_out != NULL) {
2131         BIO_free(bio_c_out);
2132         bio_c_out = NULL;
2133     }
2134     if (bio_c_msg != NULL) {
2135         BIO_free(bio_c_msg);
2136         bio_c_msg = NULL;
2137     }
2138     SSL_COMP_free_compression_methods();
2139     apps_shutdown();
2140     OPENSSL_EXIT(ret);
2141 }
2142 
2143 static void print_stuff(BIO *bio, SSL *s, int full)
2144 {
2145     X509 *peer = NULL;
2146     char *p;
2147     static const char *space = "                ";
2148     char buf[BUFSIZ];
2149     STACK_OF(X509) *sk;
2150     STACK_OF(X509_NAME) *sk2;
2151     const SSL_CIPHER *c;
2152     X509_NAME *xn;
2153     int j, i;
2154 #ifndef OPENSSL_NO_COMP
2155     const COMP_METHOD *comp, *expansion;
2156 #endif
2157     unsigned char *exportedkeymat;
2158 
2159     if (full) {
2160         int got_a_chain = 0;
2161 
2162         sk = SSL_get_peer_cert_chain(s);
2163         if (sk != NULL) {
2164             got_a_chain = 1;    /* we don't have it for SSL2 (yet) */
2165 
2166             BIO_printf(bio, "---\nCertificate chain\n");
2167             for (i = 0; i < sk_X509_num(sk); i++) {
2168                 X509_NAME_oneline(X509_get_subject_name(sk_X509_value(sk, i)),
2169                                   buf, sizeof(buf));
2170                 BIO_printf(bio, "%2d s:%s\n", i, buf);
2171                 X509_NAME_oneline(X509_get_issuer_name(sk_X509_value(sk, i)),
2172                                   buf, sizeof(buf));
2173                 BIO_printf(bio, "   i:%s\n", buf);
2174                 if (c_showcerts)
2175                     PEM_write_bio_X509(bio, sk_X509_value(sk, i));
2176             }
2177         }
2178 
2179         BIO_printf(bio, "---\n");
2180         peer = SSL_get_peer_certificate(s);
2181         if (peer != NULL) {
2182             BIO_printf(bio, "Server certificate\n");
2183 
2184             /* Redundant if we showed the whole chain */
2185             if (!(c_showcerts && got_a_chain))
2186                 PEM_write_bio_X509(bio, peer);
2187             X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof(buf));
2188             BIO_printf(bio, "subject=%s\n", buf);
2189             X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof(buf));
2190             BIO_printf(bio, "issuer=%s\n", buf);
2191         } else
2192             BIO_printf(bio, "no peer certificate available\n");
2193 
2194         sk2 = SSL_get_client_CA_list(s);
2195         if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0)) {
2196             BIO_printf(bio, "---\nAcceptable client certificate CA names\n");
2197             for (i = 0; i < sk_X509_NAME_num(sk2); i++) {
2198                 xn = sk_X509_NAME_value(sk2, i);
2199                 X509_NAME_oneline(xn, buf, sizeof(buf));
2200                 BIO_write(bio, buf, strlen(buf));
2201                 BIO_write(bio, "\n", 1);
2202             }
2203         } else {
2204             BIO_printf(bio, "---\nNo client certificate CA names sent\n");
2205         }
2206         p = SSL_get_shared_ciphers(s, buf, sizeof(buf));
2207         if (p != NULL) {
2208             /*
2209              * This works only for SSL 2.  In later protocol versions, the
2210              * client does not know what other ciphers (in addition to the
2211              * one to be used in the current connection) the server supports.
2212              */
2213 
2214             BIO_printf(bio,
2215                        "---\nCiphers common between both SSL endpoints:\n");
2216             j = i = 0;
2217             while (*p) {
2218                 if (*p == ':') {
2219                     BIO_write(bio, space, 15 - j % 25);
2220                     i++;
2221                     j = 0;
2222                     BIO_write(bio, ((i % 3) ? " " : "\n"), 1);
2223                 } else {
2224                     BIO_write(bio, p, 1);
2225                     j++;
2226                 }
2227                 p++;
2228             }
2229             BIO_write(bio, "\n", 1);
2230         }
2231 
2232         ssl_print_sigalgs(bio, s);
2233         ssl_print_tmp_key(bio, s);
2234 
2235         BIO_printf(bio,
2236                    "---\nSSL handshake has read %ld bytes and written %ld bytes\n",
2237                    BIO_number_read(SSL_get_rbio(s)),
2238                    BIO_number_written(SSL_get_wbio(s)));
2239     }
2240     BIO_printf(bio, (SSL_cache_hit(s) ? "---\nReused, " : "---\nNew, "));
2241     c = SSL_get_current_cipher(s);
2242     BIO_printf(bio, "%s, Cipher is %s\n",
2243                SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
2244     if (peer != NULL) {
2245         EVP_PKEY *pktmp;
2246         pktmp = X509_get_pubkey(peer);
2247         BIO_printf(bio, "Server public key is %d bit\n",
2248                    EVP_PKEY_bits(pktmp));
2249         EVP_PKEY_free(pktmp);
2250     }
2251     BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
2252                SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
2253 #ifndef OPENSSL_NO_COMP
2254     comp = SSL_get_current_compression(s);
2255     expansion = SSL_get_current_expansion(s);
2256     BIO_printf(bio, "Compression: %s\n",
2257                comp ? SSL_COMP_get_name(comp) : "NONE");
2258     BIO_printf(bio, "Expansion: %s\n",
2259                expansion ? SSL_COMP_get_name(expansion) : "NONE");
2260 #endif
2261 
2262 #ifdef SSL_DEBUG
2263     {
2264         /* Print out local port of connection: useful for debugging */
2265         int sock;
2266         struct sockaddr_in ladd;
2267         socklen_t ladd_size = sizeof(ladd);
2268         sock = SSL_get_fd(s);
2269         getsockname(sock, (struct sockaddr *)&ladd, &ladd_size);
2270         BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port));
2271     }
2272 #endif
2273 
2274 #if !defined(OPENSSL_NO_TLSEXT)
2275 # if !defined(OPENSSL_NO_NEXTPROTONEG)
2276     if (next_proto.status != -1) {
2277         const unsigned char *proto;
2278         unsigned int proto_len;
2279         SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
2280         BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
2281         BIO_write(bio, proto, proto_len);
2282         BIO_write(bio, "\n", 1);
2283     }
2284 # endif
2285     {
2286         const unsigned char *proto;
2287         unsigned int proto_len;
2288         SSL_get0_alpn_selected(s, &proto, &proto_len);
2289         if (proto_len > 0) {
2290             BIO_printf(bio, "ALPN protocol: ");
2291             BIO_write(bio, proto, proto_len);
2292             BIO_write(bio, "\n", 1);
2293         } else
2294             BIO_printf(bio, "No ALPN negotiated\n");
2295     }
2296 #endif
2297 
2298 #ifndef OPENSSL_NO_SRTP
2299     {
2300         SRTP_PROTECTION_PROFILE *srtp_profile =
2301             SSL_get_selected_srtp_profile(s);
2302 
2303         if (srtp_profile)
2304             BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
2305                        srtp_profile->name);
2306     }
2307 #endif
2308 
2309     SSL_SESSION_print(bio, SSL_get_session(s));
2310     if (keymatexportlabel != NULL) {
2311         BIO_printf(bio, "Keying material exporter:\n");
2312         BIO_printf(bio, "    Label: '%s'\n", keymatexportlabel);
2313         BIO_printf(bio, "    Length: %i bytes\n", keymatexportlen);
2314         exportedkeymat = OPENSSL_malloc(keymatexportlen);
2315         if (exportedkeymat != NULL) {
2316             if (!SSL_export_keying_material(s, exportedkeymat,
2317                                             keymatexportlen,
2318                                             keymatexportlabel,
2319                                             strlen(keymatexportlabel),
2320                                             NULL, 0, 0)) {
2321                 BIO_printf(bio, "    Error\n");
2322             } else {
2323                 BIO_printf(bio, "    Keying material: ");
2324                 for (i = 0; i < keymatexportlen; i++)
2325                     BIO_printf(bio, "%02X", exportedkeymat[i]);
2326                 BIO_printf(bio, "\n");
2327             }
2328             OPENSSL_free(exportedkeymat);
2329         }
2330     }
2331     BIO_printf(bio, "---\n");
2332     if (peer != NULL)
2333         X509_free(peer);
2334     /* flush, or debugging output gets mixed with http response */
2335     (void)BIO_flush(bio);
2336 }
2337 
2338 #ifndef OPENSSL_NO_TLSEXT
2339 
2340 static int ocsp_resp_cb(SSL *s, void *arg)
2341 {
2342     const unsigned char *p;
2343     int len;
2344     OCSP_RESPONSE *rsp;
2345     len = SSL_get_tlsext_status_ocsp_resp(s, &p);
2346     BIO_puts(arg, "OCSP response: ");
2347     if (!p) {
2348         BIO_puts(arg, "no response sent\n");
2349         return 1;
2350     }
2351     rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
2352     if (!rsp) {
2353         BIO_puts(arg, "response parse error\n");
2354         BIO_dump_indent(arg, (char *)p, len, 4);
2355         return 0;
2356     }
2357     BIO_puts(arg, "\n======================================\n");
2358     OCSP_RESPONSE_print(arg, rsp, 0);
2359     BIO_puts(arg, "======================================\n");
2360     OCSP_RESPONSE_free(rsp);
2361     return 1;
2362 }
2363 
2364 #endif
2365