apps/s_client.c

   1 /* apps/s_client.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111 /* ====================================================================
 112  * Copyright 2005 Nokia. All rights reserved.
 113  *
 114  * The portions of the attached software ("Contribution") is developed by
 115  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
 116  * license.
 117  *
 118  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
 119  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
 120  * support (see RFC 4279) to OpenSSL.
 121  *
 122  * No patent licenses or other rights except those expressly stated in
 123  * the OpenSSL open source license shall be deemed granted or received
 124  * expressly, by implication, estoppel, or otherwise.
 125  *
 126  * No assurances are provided by Nokia that the Contribution does not
 127  * infringe the patent or other intellectual property rights of any third
 128  * party or that the license provides you with all the necessary rights
 129  * to make use of the Contribution.
 130  *
 131  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
 132  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
 133  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
 134  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
 135  * OTHERWISE.
 136  */
 137
 138 #include <assert.h>
 139 #include <ctype.h>
 140 #include <stdio.h>
 141 #include <stdlib.h>
 142 #include <string.h>
 143 #include <openssl/e_os2.h>
 144 #ifdef OPENSSL_NO_STDIO
 145 #define APPS_WIN16
 146 #endif
 147
 148 /* With IPv6, it looks like Digital has mixed up the proper order of
 149    recursive header file inclusion, resulting in the compiler complaining
 150    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 151    is needed to have fileno() declared correctly...  So let's define u_int */
 152 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 153 #define __U_INT
 154 typedef unsigned int u_int;
 155 #endif
 156
 157 #define USE_SOCKETS
 158 #include "apps.h"
 159 #include <openssl/x509.h>
 160 #include <openssl/ssl.h>
 161 #include <openssl/err.h>
 162 #include <openssl/pem.h>
 163 #include <openssl/rand.h>
 164 #include <openssl/ocsp.h>
 165 #include <openssl/bn.h>
 166 #ifndef OPENSSL_NO_SRP
 167 #include <openssl/srp.h>
 168 #endif
 169 #include "s_apps.h"
 170 #include "timeouts.h"
 171
 172 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 173 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 174 #undef FIONBIO
 175 #endif
 176
 177 #if defined(OPENSSL_SYS_BEOS_R5)
 178 #include <fcntl.h>
 179 #endif
 180
 181 #undef PROG
 182 #define PROG    s_client_main
 183
 184 /*#define SSL_HOST_NAME "www.netscape.com" */
 185 /*#define SSL_HOST_NAME "193.118.187.102" */
 186 #define SSL_HOST_NAME   "localhost"
 187
 188 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 189
 190 #undef BUFSIZZ
 191 #define BUFSIZZ 1024*8
 192
 193 extern int verify_depth;
 194 extern int verify_error;
 195 extern int verify_return_error;
 196 extern int verify_quiet;
 197
 198 #ifdef FIONBIO
 199 static int c_nbio=0;
 200 #endif
 201 static int c_Pause=0;
 202 static int c_debug=0;
 203 #ifndef OPENSSL_NO_TLSEXT
 204 static int c_tlsextdebug=0;
 205 static int c_status_req=0;
 206 #endif
 207 static int c_msg=0;
 208 static int c_showcerts=0;
 209
 210 static char *keymatexportlabel=NULL;
 211 static int keymatexportlen=20;
 212
 213 static void sc_usage(void);
 214 static void print_stuff(BIO *berr,SSL *con,int full);
 215 #ifndef OPENSSL_NO_TLSEXT
 216 static int ocsp_resp_cb(SSL *s, void *arg);
 217 static int c_auth = 0;
 218 static int c_auth_require_reneg = 0;
 219 #endif
 220 static BIO *bio_c_out=NULL;
 221 static BIO *bio_c_msg=NULL;
 222 static int c_quiet=0;
 223 static int c_ign_eof=0;
 224 static int c_brief=0;
 225
 226 #ifndef OPENSSL_NO_TLSEXT
 227
 228 static unsigned char *generated_supp_data = NULL;
 229
 230 static const unsigned char *most_recent_supplemental_data = NULL;
 231 static size_t most_recent_supplemental_data_length = 0;
 232
 233 static int server_provided_server_authz = 0;
 234 static int server_provided_client_authz = 0;
 235
 236 static const unsigned char auth_ext_data[]={TLSEXT_AUTHZDATAFORMAT_dtcp};
 237
 238 static int suppdata_cb(SSL *s, unsigned short supp_data_type,
 239                        const unsigned char *in,
 240                        unsigned short inlen, int *al,
 241                        void *arg);
 242
 243 static int auth_suppdata_generate_cb(SSL *s, unsigned short supp_data_type,
 244                                      const unsigned char **out,
 245                                      unsigned short *outlen, int *al, void *arg);
 246
 247 static int authz_tlsext_generate_cb(SSL *s, unsigned short ext_type,
 248                                     const unsigned char **out, unsigned short *outlen,
 249                                     int *al, void *arg);
 250
 251 static int authz_tlsext_cb(SSL *s, unsigned short ext_type,
 252                            const unsigned char *in,
 253                            unsigned short inlen, int *al,
 254                            void *arg);
 255 #endif
 256
 257 #ifndef OPENSSL_NO_PSK
 258 /* Default PSK identity and key */
 259 static char *psk_identity="Client_identity";
 260 /*char *psk_key=NULL;  by default PSK is not used */
 261
 262 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
 263         unsigned int max_identity_len, unsigned char *psk,
 264         unsigned int max_psk_len)
 265         {
 266         unsigned int psk_len = 0;
 267         int ret;
 268         BIGNUM *bn=NULL;
 269
 270         if (c_debug)
 271                 BIO_printf(bio_c_out, "psk_client_cb\n");
 272         if (!hint)
 273                 {
 274                 /* no ServerKeyExchange message*/
 275                 if (c_debug)
 276                         BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n");
 277                 }
 278         else if (c_debug)
 279                 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
 280
 281         /* lookup PSK identity and PSK key based on the given identity hint here */
 282         ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
 283         if (ret < 0 || (unsigned int)ret > max_identity_len)
 284                 goto out_err;
 285         if (c_debug)
 286                 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret);
 287         ret=BN_hex2bn(&bn, psk_key);
 288         if (!ret)
 289                 {
 290                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 291                 if (bn)
 292                         BN_free(bn);
 293                 return 0;
 294                 }
 295
 296         if ((unsigned int)BN_num_bytes(bn) > max_psk_len)
 297                 {
 298                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 299                         max_psk_len, BN_num_bytes(bn));
 300                 BN_free(bn);
 301                 return 0;
 302                 }
 303
 304         psk_len=BN_bn2bin(bn, psk);
 305         BN_free(bn);
 306         if (psk_len == 0)
 307                 goto out_err;
 308
 309         if (c_debug)
 310                 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
 311
 312         return psk_len;
 313  out_err:
 314         if (c_debug)
 315                 BIO_printf(bio_err, "Error in PSK client callback\n");
 316         return 0;
 317         }
 318 #endif
 319
 320 static void sc_usage(void)
 321         {
 322         BIO_printf(bio_err,"usage: s_client args\n");
 323         BIO_printf(bio_err,"\n");
 324         BIO_printf(bio_err," -host host     - use -connect instead\n");
 325         BIO_printf(bio_err," -port port     - use -connect instead\n");
 326         BIO_printf(bio_err," -connect host:port - connect over TCP/IP (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 327         BIO_printf(bio_err," -unix path    - connect over unix domain sockets\n");
 328         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 329         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 330         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 331         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 332         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 333         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 334         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 335         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 336         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 337         BIO_printf(bio_err," -trusted_first - Use local CA's first when building trust chain\n");
 338         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 339         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 340         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\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," -crlf         - convert LF from terminal into CRLF\n");
 352         BIO_printf(bio_err," -quiet        - no s_client output\n");
 353         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 354         BIO_printf(bio_err," -no_ign_eof   - don't ignore input eof\n");
 355 #ifndef OPENSSL_NO_PSK
 356         BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
 357         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 358 # ifndef OPENSSL_NO_JPAKE
 359         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
 360 # endif
 361 #endif
 362 #ifndef OPENSSL_NO_SRP
 363         BIO_printf(bio_err," -srpuser user     - SRP authentification for 'user'\n");
 364         BIO_printf(bio_err," -srppass arg      - password for 'user'\n");
 365         BIO_printf(bio_err," -srp_lateuser     - SRP username into second ClientHello message\n");
 366         BIO_printf(bio_err," -srp_moregroups   - Tolerate other than the known g N values.\n");
 367         BIO_printf(bio_err," -srp_strength int - minimal mength in bits for N (default %d).\n",SRP_MINIMAL_N);
 368 #endif
 369         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 370         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 371         BIO_printf(bio_err," -tls1_2       - just use TLSv1.2\n");
 372         BIO_printf(bio_err," -tls1_1       - just use TLSv1.1\n");
 373         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 374         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 375         BIO_printf(bio_err," -mtu          - set the link layer MTU\n");
 376         BIO_printf(bio_err," -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 377         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 378         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 379         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 380         BIO_printf(bio_err,"                 command to see what is available\n");
 381         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 382         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 383         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 384         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
 385         BIO_printf(bio_err,"                 are supported.\n");
 386         BIO_printf(bio_err," -xmpphost host - When used with \"-starttls xmpp\" specifies the virtual host.\n");
 387 #ifndef OPENSSL_NO_ENGINE
 388         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 389 #endif
 390         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 391         BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
 392         BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
 393 #ifndef OPENSSL_NO_TLSEXT
 394         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 395         BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
 396         BIO_printf(bio_err," -status           - request certificate status from server\n");
 397         BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
 398         BIO_printf(bio_err," -serverinfo types - send empty ClientHello extensions (comma-separated numbers)\n");
 399         BIO_printf(bio_err," -auth               - send and receive RFC 5878 TLS auth extensions and supplemental data\n");
 400         BIO_printf(bio_err," -auth_require_reneg - Do not send TLS auth extensions until renegotiation\n");
 401 # ifndef OPENSSL_NO_NEXTPROTONEG
 402         BIO_printf(bio_err," -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n");
 403 # endif
 404         BIO_printf(bio_err," -alpn arg         - enable ALPN extension, considering named protocols supported (comma-separated list)\n");
 405 #endif
 406         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
 407         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
 408         BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
 409         BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
 410         }
 411
 412 #ifndef OPENSSL_NO_TLSEXT
 413
 414 /* This is a context that we pass to callbacks */
 415 typedef struct tlsextctx_st {
 416    BIO * biodebug;
 417    int ack;
 418 } tlsextctx;
 419
 420
 421 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 422         {
 423         tlsextctx * p = (tlsextctx *) arg;
 424         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 425         if (SSL_get_servername_type(s) != -1)
 426                 p->ack = !SSL_session_reused(s) && hn != NULL;
 427         else
 428                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 429
 430         return SSL_TLSEXT_ERR_OK;
 431         }
 432
 433 #ifndef OPENSSL_NO_SRP
 434
 435 /* This is a context that we pass to all callbacks */
 436 typedef struct srp_arg_st
 437         {
 438         char *srppassin;
 439         char *srplogin;
 440         int msg;   /* copy from c_msg */
 441         int debug; /* copy from c_debug */
 442         int amp;   /* allow more groups */
 443         int strength /* minimal size for N */ ;
 444         } SRP_ARG;
 445
 446 #define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
 447
 448 static int srp_Verify_N_and_g(const BIGNUM *N, const BIGNUM *g)
 449         {
 450         BN_CTX *bn_ctx = BN_CTX_new();
 451         BIGNUM *p = BN_new();
 452         BIGNUM *r = BN_new();
 453         int ret =
 454                 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
 455                 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
 456                 p != NULL && BN_rshift1(p, N) &&
 457
 458                 /* p = (N-1)/2 */
 459                 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
 460                 r != NULL &&
 461
 462                 /* verify g^((N-1)/2) == -1 (mod N) */
 463                 BN_mod_exp(r, g, p, N, bn_ctx) &&
 464                 BN_add_word(r, 1) &&
 465                 BN_cmp(r, N) == 0;
 466
 467         if(r)
 468                 BN_free(r);
 469         if(p)
 470                 BN_free(p);
 471         if(bn_ctx)
 472                 BN_CTX_free(bn_ctx);
 473         return ret;
 474         }
 475
 476 /* This callback is used here for two purposes:
 477    - extended debugging
 478    - making some primality tests for unknown groups
 479    The callback is only called for a non default group.
 480
 481    An application does not need the call back at all if
 482    only the stanard groups are used.  In real life situations,
 483    client and server already share well known groups,
 484    thus there is no need to verify them.
 485    Furthermore, in case that a server actually proposes a group that
 486    is not one of those defined in RFC 5054, it is more appropriate
 487    to add the group to a static list and then compare since
 488    primality tests are rather cpu consuming.
 489 */
 490
 491 static int MS_CALLBACK ssl_srp_verify_param_cb(SSL *s, void *arg)
 492         {
 493         SRP_ARG *srp_arg = (SRP_ARG *)arg;
 494         BIGNUM *N = NULL, *g = NULL;
 495         if (!(N = SSL_get_srp_N(s)) || !(g = SSL_get_srp_g(s)))
 496                 return 0;
 497         if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1)
 498                 {
 499                 BIO_printf(bio_err, "SRP parameters:\n");
 500                 BIO_printf(bio_err,"\tN="); BN_print(bio_err,N);
 501                 BIO_printf(bio_err,"\n\tg="); BN_print(bio_err,g);
 502                 BIO_printf(bio_err,"\n");
 503                 }
 504
 505         if (SRP_check_known_gN_param(g,N))
 506                 return 1;
 507
 508         if (srp_arg->amp == 1)
 509                 {
 510                 if (srp_arg->debug)
 511                         BIO_printf(bio_err, "SRP param N and g are not known params, going to check deeper.\n");
 512
 513 /* The srp_moregroups is a real debugging feature.
 514    Implementors should rather add the value to the known ones.
 515    The minimal size has already been tested.
 516 */
 517                 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N,g))
 518                         return 1;
 519                 }
 520         BIO_printf(bio_err, "SRP param N and g rejected.\n");
 521         return 0;
 522         }
 523
 524 #define PWD_STRLEN 1024
 525
 526 static char * MS_CALLBACK ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
 527         {
 528         SRP_ARG *srp_arg = (SRP_ARG *)arg;
 529         char *pass = (char *)OPENSSL_malloc(PWD_STRLEN+1);
 530         PW_CB_DATA cb_tmp;
 531         int l;
 532
 533         cb_tmp.password = (char *)srp_arg->srppassin;
 534         cb_tmp.prompt_info = "SRP user";
 535         if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp))<0)
 536                 {
 537                 BIO_printf (bio_err, "Can't read Password\n");
 538                 OPENSSL_free(pass);
 539                 return NULL;
 540                 }
 541         *(pass+l)= '\0';
 542
 543         return pass;
 544         }
 545
 546 #endif
 547         char *srtp_profiles = NULL;
 548
 549 # ifndef OPENSSL_NO_NEXTPROTONEG
 550 /* This the context that we pass to next_proto_cb */
 551 typedef struct tlsextnextprotoctx_st {
 552         unsigned char *data;
 553         unsigned short len;
 554         int status;
 555 } tlsextnextprotoctx;
 556
 557 static tlsextnextprotoctx next_proto;
 558
 559 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg)
 560         {
 561         tlsextnextprotoctx *ctx = arg;
 562
 563         if (!c_quiet)
 564                 {
 565                 /* We can assume that |in| is syntactically valid. */
 566                 unsigned i;
 567                 BIO_printf(bio_c_out, "Protocols advertised by server: ");
 568                 for (i = 0; i < inlen; )
 569                         {
 570                         if (i)
 571                                 BIO_write(bio_c_out, ", ", 2);
 572                         BIO_write(bio_c_out, &in[i + 1], in[i]);
 573                         i += in[i] + 1;
 574                         }
 575                 BIO_write(bio_c_out, "\n", 1);
 576                 }
 577
 578         ctx->status = SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
 579         return SSL_TLSEXT_ERR_OK;
 580         }
 581 # endif  /* ndef OPENSSL_NO_NEXTPROTONEG */
 582
 583 static int serverinfo_cli_cb(SSL* s, unsigned short ext_type,
 584                              const unsigned char* in, unsigned short inlen,
 585                              int* al, void* arg)
 586         {
 587         char pem_name[100];
 588         unsigned char ext_buf[4 + 65536];
 589
 590         /* Reconstruct the type/len fields prior to extension data */
 591         ext_buf[0] = ext_type >> 8;
 592         ext_buf[1] = ext_type & 0xFF;
 593         ext_buf[2] = inlen >> 8;
 594         ext_buf[3] = inlen & 0xFF;
 595         memcpy(ext_buf+4, in, inlen);
 596
 597         BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d",
 598                      ext_type);
 599         PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen);
 600         return 1;
 601         }
 602
 603 #endif
 604
 605 enum
 606 {
 607         PROTO_OFF       = 0,
 608         PROTO_SMTP,
 609         PROTO_POP3,
 610         PROTO_IMAP,
 611         PROTO_FTP,
 612         PROTO_XMPP
 613 };
 614
 615 int MAIN(int, char **);
 616
 617 int MAIN(int argc, char **argv)
 618         {
 619         int build_chain = 0;
 620         SSL *con=NULL;
 621 #ifndef OPENSSL_NO_KRB5
 622         KSSL_CTX *kctx;
 623 #endif
 624         int s,k,width,state=0;
 625         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 626         int cbuf_len,cbuf_off;
 627         int sbuf_len,sbuf_off;
 628         fd_set readfds,writefds;
 629         short port=PORT;
 630         int full_log=1;
 631         char *host=SSL_HOST_NAME;
 632         const char *unix_path = NULL;
 633         char *xmpphost = NULL;
 634         char *cert_file=NULL,*key_file=NULL,*chain_file=NULL;
 635         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 636         char *passarg = NULL, *pass = NULL;
 637         X509 *cert = NULL;
 638         EVP_PKEY *key = NULL;
 639         STACK_OF(X509) *chain = NULL;
 640         char *CApath=NULL,*CAfile=NULL;
 641         char *chCApath=NULL,*chCAfile=NULL;
 642         char *vfyCApath=NULL,*vfyCAfile=NULL;
 643         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE;
 644         int crlf=0;
 645         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 646         SSL_CTX *ctx=NULL;
 647         int ret=1,in_init=1,i,nbio_test=0;
 648         int starttls_proto = PROTO_OFF;
 649         int prexit = 0;
 650         X509_VERIFY_PARAM *vpm = NULL;
 651         int badarg = 0;
 652         const SSL_METHOD *meth=NULL;
 653         int socket_type=SOCK_STREAM;
 654         BIO *sbio;
 655         char *inrand=NULL;
 656         int mbuf_len=0;
 657         struct timeval timeout, *timeoutp;
 658 #ifndef OPENSSL_NO_ENGINE
 659         char *engine_id=NULL;
 660         char *ssl_client_engine_id=NULL;
 661         ENGINE *ssl_client_engine=NULL;
 662 #endif
 663         ENGINE *e=NULL;
 664 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
 665         struct timeval tv;
 666 #if defined(OPENSSL_SYS_BEOS_R5)
 667         int stdin_set = 0;
 668 #endif
 669 #endif
 670 #ifndef OPENSSL_NO_TLSEXT
 671         char *servername = NULL;
 672         tlsextctx tlsextcbp =
 673         {NULL,0};
 674 # ifndef OPENSSL_NO_NEXTPROTONEG
 675         const char *next_proto_neg_in = NULL;
 676 # endif
 677         const char *alpn_in = NULL;
 678 # define MAX_SI_TYPES 100
 679         unsigned short serverinfo_types[MAX_SI_TYPES];
 680         int serverinfo_types_count = 0;
 681 #endif
 682         char *sess_in = NULL;
 683         char *sess_out = NULL;
 684         struct sockaddr peer;
 685         int peerlen = sizeof(peer);
 686         int enable_timeouts = 0 ;
 687         long socket_mtu = 0;
 688 #ifndef OPENSSL_NO_JPAKE
 689 static char *jpake_secret = NULL;
 690 #define no_jpake !jpake_secret
 691 #else
 692 #define no_jpake 1
 693 #endif
 694 #ifndef OPENSSL_NO_SRP
 695         char * srppass = NULL;
 696         int srp_lateuser = 0;
 697         SRP_ARG srp_arg = {NULL,NULL,0,0,0,1024};
 698 #endif
 699         SSL_EXCERT *exc = NULL;
 700
 701         SSL_CONF_CTX *cctx = NULL;
 702         STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
 703
 704         char *crl_file = NULL;
 705         int crl_format = FORMAT_PEM;
 706         int crl_download = 0;
 707         STACK_OF(X509_CRL) *crls = NULL;
 708         int sdebug = 0;
 709
 710         meth=SSLv23_client_method();
 711
 712         apps_startup();
 713         c_Pause=0;
 714         c_quiet=0;
 715         c_ign_eof=0;
 716         c_debug=0;
 717         c_msg=0;
 718         c_showcerts=0;
 719
 720         if (bio_err == NULL)
 721                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 722
 723         if (!load_config(bio_err, NULL))
 724                 goto end;
 725         cctx = SSL_CONF_CTX_new();
 726         if (!cctx)
 727                 goto end;
 728         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT);
 729         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CMDLINE);
 730
 731         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 732                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 733                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 734                 {
 735                 BIO_printf(bio_err,"out of memory\n");
 736                 goto end;
 737                 }
 738
 739         verify_depth=0;
 740         verify_error=X509_V_OK;
 741 #ifdef FIONBIO
 742         c_nbio=0;
 743 #endif
 744
 745         argc--;
 746         argv++;
 747         while (argc >= 1)
 748                 {
 749                 if      (strcmp(*argv,"-host") == 0)
 750                         {
 751                         if (--argc < 1) goto bad;
 752                         host= *(++argv);
 753                         }
 754                 else if (strcmp(*argv,"-port") == 0)
 755                         {
 756                         if (--argc < 1) goto bad;
 757                         port=atoi(*(++argv));
 758                         if (port == 0) goto bad;
 759                         }
 760                 else if (strcmp(*argv,"-connect") == 0)
 761                         {
 762                         if (--argc < 1) goto bad;
 763                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 764                                 goto bad;
 765                         }
 766                 else if (strcmp(*argv,"-unix") == 0)
 767                         {
 768                         if (--argc < 1) goto bad;
 769                         unix_path = *(++argv);
 770                         }
 771                 else if (strcmp(*argv,"-xmpphost") == 0)
 772                         {
 773                         if (--argc < 1) goto bad;
 774                         xmpphost= *(++argv);
 775                         }
 776                 else if (strcmp(*argv,"-verify") == 0)
 777                         {
 778                         verify=SSL_VERIFY_PEER;
 779                         if (--argc < 1) goto bad;
 780                         verify_depth=atoi(*(++argv));
 781                         if (!c_quiet)
 782                                 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 783                         }
 784                 else if (strcmp(*argv,"-cert") == 0)
 785                         {
 786                         if (--argc < 1) goto bad;
 787                         cert_file= *(++argv);
 788                         }
 789                 else if (strcmp(*argv,"-CRL") == 0)
 790                         {
 791                         if (--argc < 1) goto bad;
 792                         crl_file= *(++argv);
 793                         }
 794                 else if (strcmp(*argv,"-crl_download") == 0)
 795                         crl_download = 1;
 796                 else if (strcmp(*argv,"-sess_out") == 0)
 797                         {
 798                         if (--argc < 1) goto bad;
 799                         sess_out = *(++argv);
 800                         }
 801                 else if (strcmp(*argv,"-sess_in") == 0)
 802                         {
 803                         if (--argc < 1) goto bad;
 804                         sess_in = *(++argv);
 805                         }
 806                 else if (strcmp(*argv,"-certform") == 0)
 807                         {
 808                         if (--argc < 1) goto bad;
 809                         cert_format = str2fmt(*(++argv));
 810                         }
 811                 else if (strcmp(*argv,"-CRLform") == 0)
 812                         {
 813                         if (--argc < 1) goto bad;
 814                         crl_format = str2fmt(*(++argv));
 815                         }
 816                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
 817                         {
 818                         if (badarg)
 819                                 goto bad;
 820                         continue;
 821                         }
 822                 else if (strcmp(*argv,"-verify_return_error") == 0)
 823                         verify_return_error = 1;
 824                 else if (strcmp(*argv,"-verify_quiet") == 0)
 825                         verify_quiet = 1;
 826                 else if (strcmp(*argv,"-brief") == 0)
 827                         {
 828                         c_brief = 1;
 829                         verify_quiet = 1;
 830                         c_quiet = 1;
 831                         }
 832                 else if (args_excert(&argv, &argc, &badarg, bio_err, &exc))
 833                         {
 834                         if (badarg)
 835                                 goto bad;
 836                         continue;
 837                         }
 838                 else if (args_ssl(&argv, &argc, cctx, &badarg, bio_err, &ssl_args))
 839                         {
 840                         if (badarg)
 841                                 goto bad;
 842                         continue;
 843                         }
 844                 else if (strcmp(*argv,"-prexit") == 0)
 845                         prexit=1;
 846                 else if (strcmp(*argv,"-crlf") == 0)
 847                         crlf=1;
 848                 else if (strcmp(*argv,"-quiet") == 0)
 849                         {
 850                         c_quiet=1;
 851                         c_ign_eof=1;
 852                         }
 853                 else if (strcmp(*argv,"-ign_eof") == 0)
 854                         c_ign_eof=1;
 855                 else if (strcmp(*argv,"-no_ign_eof") == 0)
 856                         c_ign_eof=0;
 857                 else if (strcmp(*argv,"-pause") == 0)
 858                         c_Pause=1;
 859                 else if (strcmp(*argv,"-debug") == 0)
 860                         c_debug=1;
 861 #ifndef OPENSSL_NO_TLSEXT
 862                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 863                         c_tlsextdebug=1;
 864                 else if (strcmp(*argv,"-status") == 0)
 865                         c_status_req=1;
 866                 else if (strcmp(*argv,"-auth") == 0)
 867                         c_auth = 1;
 868                 else if (strcmp(*argv,"-auth_require_reneg") == 0)
 869                         c_auth_require_reneg = 1;
 870 #endif
 871 #ifdef WATT32
 872                 else if (strcmp(*argv,"-wdebug") == 0)
 873                         dbug_init();
 874 #endif
 875                 else if (strcmp(*argv,"-msg") == 0)
 876                         c_msg=1;
 877                 else if (strcmp(*argv,"-msgfile") == 0)
 878                         {
 879                         if (--argc < 1) goto bad;
 880                         bio_c_msg = BIO_new_file(*(++argv), "w");
 881                         }
 882 #ifndef OPENSSL_NO_SSL_TRACE
 883                 else if (strcmp(*argv,"-trace") == 0)
 884                         c_msg=2;
 885 #endif
 886                 else if (strcmp(*argv,"-security_debug") == 0)
 887                         { sdebug=1; }
 888                 else if (strcmp(*argv,"-security_debug_verbose") == 0)
 889                         { sdebug=2; }
 890                 else if (strcmp(*argv,"-showcerts") == 0)
 891                         c_showcerts=1;
 892                 else if (strcmp(*argv,"-nbio_test") == 0)
 893                         nbio_test=1;
 894                 else if (strcmp(*argv,"-state") == 0)
 895                         state=1;
 896 #ifndef OPENSSL_NO_PSK
 897                 else if (strcmp(*argv,"-psk_identity") == 0)
 898                         {
 899                         if (--argc < 1) goto bad;
 900                         psk_identity=*(++argv);
 901                         }
 902                 else if (strcmp(*argv,"-psk") == 0)
 903                         {
 904                         size_t j;
 905
 906                         if (--argc < 1) goto bad;
 907                         psk_key=*(++argv);
 908                         for (j = 0; j < strlen(psk_key); j++)
 909                                 {
 910                                 if (isxdigit((unsigned char)psk_key[j]))
 911                                         continue;
 912                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
 913                                 goto bad;
 914                                 }
 915                         }
 916 #endif
 917 #ifndef OPENSSL_NO_SRP
 918                 else if (strcmp(*argv,"-srpuser") == 0)
 919                         {
 920                         if (--argc < 1) goto bad;
 921                         srp_arg.srplogin= *(++argv);
 922                         meth=TLSv1_client_method();
 923                         }
 924                 else if (strcmp(*argv,"-srppass") == 0)
 925                         {
 926                         if (--argc < 1) goto bad;
 927                         srppass= *(++argv);
 928                         meth=TLSv1_client_method();
 929                         }
 930                 else if (strcmp(*argv,"-srp_strength") == 0)
 931                         {
 932                         if (--argc < 1) goto bad;
 933                         srp_arg.strength=atoi(*(++argv));
 934                         BIO_printf(bio_err,"SRP minimal length for N is %d\n",srp_arg.strength);
 935                         meth=TLSv1_client_method();
 936                         }
 937                 else if (strcmp(*argv,"-srp_lateuser") == 0)
 938                         {
 939                         srp_lateuser= 1;
 940                         meth=TLSv1_client_method();
 941                         }
 942                 else if (strcmp(*argv,"-srp_moregroups") == 0)
 943                         {
 944                         srp_arg.amp=1;
 945                         meth=TLSv1_client_method();
 946                         }
 947 #endif
 948 #ifndef OPENSSL_NO_SSL2
 949                 else if (strcmp(*argv,"-ssl2") == 0)
 950                         meth=SSLv2_client_method();
 951 #endif
 952 #ifndef OPENSSL_NO_SSL3
 953                 else if (strcmp(*argv,"-ssl3") == 0)
 954                         meth=SSLv3_client_method();
 955 #endif
 956 #ifndef OPENSSL_NO_TLS1
 957                 else if (strcmp(*argv,"-tls1_2") == 0)
 958                         meth=TLSv1_2_client_method();
 959                 else if (strcmp(*argv,"-tls1_1") == 0)
 960                         meth=TLSv1_1_client_method();
 961                 else if (strcmp(*argv,"-tls1") == 0)
 962                         meth=TLSv1_client_method();
 963 #endif
 964 #ifndef OPENSSL_NO_DTLS1
 965                 else if (strcmp(*argv,"-dtls") == 0)
 966                         {
 967                         meth=DTLS_client_method();
 968                         socket_type=SOCK_DGRAM;
 969                         }
 970                 else if (strcmp(*argv,"-dtls1") == 0)
 971                         {
 972                         meth=DTLSv1_client_method();
 973                         socket_type=SOCK_DGRAM;
 974                         }
 975                 else if (strcmp(*argv,"-dtls1_2") == 0)
 976                         {
 977                         meth=DTLSv1_2_client_method();
 978                         socket_type=SOCK_DGRAM;
 979                         }
 980                 else if (strcmp(*argv,"-timeout") == 0)
 981                         enable_timeouts=1;
 982                 else if (strcmp(*argv,"-mtu") == 0)
 983                         {
 984                         if (--argc < 1) goto bad;
 985                         socket_mtu = atol(*(++argv));
 986                         }
 987 #endif
 988                 else if (strcmp(*argv,"-keyform") == 0)
 989                         {
 990                         if (--argc < 1) goto bad;
 991                         key_format = str2fmt(*(++argv));
 992                         }
 993                 else if (strcmp(*argv,"-pass") == 0)
 994                         {
 995                         if (--argc < 1) goto bad;
 996                         passarg = *(++argv);
 997                         }
 998                 else if (strcmp(*argv,"-cert_chain") == 0)
 999                         {
1000                         if (--argc < 1) goto bad;
1001                         chain_file= *(++argv);
1002                         }
1003                 else if (strcmp(*argv,"-key") == 0)
1004                         {
1005                         if (--argc < 1) goto bad;
1006                         key_file= *(++argv);
1007                         }
1008                 else if (strcmp(*argv,"-reconnect") == 0)
1009                         {
1010                         reconnect=5;
1011                         }
1012                 else if (strcmp(*argv,"-CApath") == 0)
1013                         {
1014                         if (--argc < 1) goto bad;
1015                         CApath= *(++argv);
1016                         }
1017                 else if (strcmp(*argv,"-chainCApath") == 0)
1018                         {
1019                         if (--argc < 1) goto bad;
1020                         chCApath= *(++argv);
1021                         }
1022                 else if (strcmp(*argv,"-verifyCApath") == 0)
1023                         {
1024                         if (--argc < 1) goto bad;
1025                         vfyCApath= *(++argv);
1026                         }
1027                 else if (strcmp(*argv,"-build_chain") == 0)
1028                         build_chain = 1;
1029                 else if (strcmp(*argv,"-CAfile") == 0)
1030                         {
1031                         if (--argc < 1) goto bad;
1032                         CAfile= *(++argv);
1033                         }
1034                 else if (strcmp(*argv,"-chainCAfile") == 0)
1035                         {
1036                         if (--argc < 1) goto bad;
1037                         chCAfile= *(++argv);
1038                         }
1039                 else if (strcmp(*argv,"-verifyCAfile") == 0)
1040                         {
1041                         if (--argc < 1) goto bad;
1042                         vfyCAfile= *(++argv);
1043                         }
1044 #ifndef OPENSSL_NO_TLSEXT
1045 # ifndef OPENSSL_NO_NEXTPROTONEG
1046                 else if (strcmp(*argv,"-nextprotoneg") == 0)
1047                         {
1048                         if (--argc < 1) goto bad;
1049                         next_proto_neg_in = *(++argv);
1050                         }
1051 # endif
1052                 else if (strcmp(*argv,"-alpn") == 0)
1053                         {
1054                         if (--argc < 1) goto bad;
1055                         alpn_in = *(++argv);
1056                         }
1057                 else if (strcmp(*argv,"-serverinfo") == 0)
1058                         {
1059                         char *c;
1060                         int start = 0;
1061                         int len;
1062
1063                         if (--argc < 1) goto bad;
1064                         c = *(++argv);
1065                         serverinfo_types_count = 0;
1066                         len = strlen(c);
1067                         for (i = 0; i <= len; ++i)
1068                                 {
1069                                 if (i == len || c[i] == ',')
1070                                         {
1071                                         serverinfo_types[serverinfo_types_count]
1072                                             = atoi(c+start);
1073                                         serverinfo_types_count++;
1074                                         start = i+1;
1075                                         }
1076                                 if (serverinfo_types_count == MAX_SI_TYPES)
1077                                         break;
1078                                 }
1079                         }
1080 #endif
1081 #ifdef FIONBIO
1082                 else if (strcmp(*argv,"-nbio") == 0)
1083                         { c_nbio=1; }
1084 #endif
1085                 else if (strcmp(*argv,"-starttls") == 0)
1086                         {
1087                         if (--argc < 1) goto bad;
1088                         ++argv;
1089                         if (strcmp(*argv,"smtp") == 0)
1090                                 starttls_proto = PROTO_SMTP;
1091                         else if (strcmp(*argv,"pop3") == 0)
1092                                 starttls_proto = PROTO_POP3;
1093                         else if (strcmp(*argv,"imap") == 0)
1094                                 starttls_proto = PROTO_IMAP;
1095                         else if (strcmp(*argv,"ftp") == 0)
1096                                 starttls_proto = PROTO_FTP;
1097                         else if (strcmp(*argv, "xmpp") == 0)
1098                                 starttls_proto = PROTO_XMPP;
1099                         else
1100                                 goto bad;
1101                         }
1102 #ifndef OPENSSL_NO_ENGINE
1103                 else if (strcmp(*argv,"-engine") == 0)
1104                         {
1105                         if (--argc < 1) goto bad;
1106                         engine_id = *(++argv);
1107                         }
1108                 else if (strcmp(*argv,"-ssl_client_engine") == 0)
1109                         {
1110                         if (--argc < 1) goto bad;
1111                         ssl_client_engine_id = *(++argv);
1112                         }
1113 #endif
1114                 else if (strcmp(*argv,"-rand") == 0)
1115                         {
1116                         if (--argc < 1) goto bad;
1117                         inrand= *(++argv);
1118                         }
1119 #ifndef OPENSSL_NO_TLSEXT
1120                 else if (strcmp(*argv,"-servername") == 0)
1121                         {
1122                         if (--argc < 1) goto bad;
1123                         servername= *(++argv);
1124                         /* meth=TLSv1_client_method(); */
1125                         }
1126 #endif
1127 #ifndef OPENSSL_NO_JPAKE
1128                 else if (strcmp(*argv,"-jpake") == 0)
1129                         {
1130                         if (--argc < 1) goto bad;
1131                         jpake_secret = *++argv;
1132                         }
1133 #endif
1134                 else if (strcmp(*argv,"-use_srtp") == 0)
1135                         {
1136                         if (--argc < 1) goto bad;
1137                         srtp_profiles = *(++argv);
1138                         }
1139                 else if (strcmp(*argv,"-keymatexport") == 0)
1140                         {
1141                         if (--argc < 1) goto bad;
1142                         keymatexportlabel= *(++argv);
1143                         }
1144                 else if (strcmp(*argv,"-keymatexportlen") == 0)
1145                         {
1146                         if (--argc < 1) goto bad;
1147                         keymatexportlen=atoi(*(++argv));
1148                         if (keymatexportlen == 0) goto bad;
1149                         }
1150                 else
1151                         {
1152                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1153                         badop=1;
1154                         break;
1155                         }
1156                 argc--;
1157                 argv++;
1158                 }
1159         if (badop)
1160                 {
1161 bad:
1162                 sc_usage();
1163                 goto end;
1164                 }
1165
1166         if (unix_path && (socket_type != SOCK_STREAM))
1167                 {
1168                 BIO_printf(bio_err, "Can't use unix sockets and datagrams together\n");
1169                         goto end;
1170                 }
1171 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1172         if (jpake_secret)
1173                 {
1174                 if (psk_key)
1175                         {
1176                         BIO_printf(bio_err,
1177                                    "Can't use JPAKE and PSK together\n");
1178                         goto end;
1179                         }
1180                 psk_identity = "JPAKE";
1181                 }
1182 #endif
1183
1184         OpenSSL_add_ssl_algorithms();
1185         SSL_load_error_strings();
1186
1187 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1188         next_proto.status = -1;
1189         if (next_proto_neg_in)
1190                 {
1191                 next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
1192                 if (next_proto.data == NULL)
1193                         {
1194                         BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1195                         goto end;
1196                         }
1197                 }
1198         else
1199                 next_proto.data = NULL;
1200 #endif
1201
1202 #ifndef OPENSSL_NO_ENGINE
1203         e = setup_engine(bio_err, engine_id, 1);
1204         if (ssl_client_engine_id)
1205                 {
1206                 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
1207                 if (!ssl_client_engine)
1208                         {
1209                         BIO_printf(bio_err,
1210                                         "Error getting client auth engine\n");
1211                         goto end;
1212                         }
1213                 }
1214
1215 #endif
1216         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
1217                 {
1218                 BIO_printf(bio_err, "Error getting password\n");
1219                 goto end;
1220                 }
1221
1222         if (key_file == NULL)
1223                 key_file = cert_file;
1224
1225
1226         if (key_file)
1227
1228                 {
1229
1230                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
1231                                "client certificate private key file");
1232                 if (!key)
1233                         {
1234                         ERR_print_errors(bio_err);
1235                         goto end;
1236                         }
1237
1238                 }
1239
1240         if (cert_file)
1241
1242                 {
1243                 cert = load_cert(bio_err,cert_file,cert_format,
1244                                 NULL, e, "client certificate file");
1245
1246                 if (!cert)
1247                         {
1248                         ERR_print_errors(bio_err);
1249                         goto end;
1250                         }
1251                 }
1252
1253         if (chain_file)
1254                 {
1255                 chain = load_certs(bio_err, chain_file,FORMAT_PEM,
1256                                         NULL, e, "client certificate chain");
1257                 if (!chain)
1258                         goto end;
1259                 }
1260
1261         if (crl_file)
1262                 {
1263                 X509_CRL *crl;
1264                 crl = load_crl(crl_file, crl_format);
1265                 if (!crl)
1266                         {
1267                         BIO_puts(bio_err, "Error loading CRL\n");
1268                         ERR_print_errors(bio_err);
1269                         goto end;
1270                         }
1271                 crls = sk_X509_CRL_new_null();
1272                 if (!crls || !sk_X509_CRL_push(crls, crl))
1273                         {
1274                         BIO_puts(bio_err, "Error adding CRL\n");
1275                         ERR_print_errors(bio_err);
1276                         X509_CRL_free(crl);
1277                         goto end;
1278                         }
1279                 }
1280
1281         if (!load_excert(&exc, bio_err))
1282                 goto end;
1283
1284         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1285                 && !RAND_status())
1286                 {
1287                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1288                 }
1289         if (inrand != NULL)
1290                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1291                         app_RAND_load_files(inrand));
1292
1293         if (bio_c_out == NULL)
1294                 {
1295                 if (c_quiet && !c_debug)
1296                         {
1297                         bio_c_out=BIO_new(BIO_s_null());
1298                         if (c_msg && !bio_c_msg)
1299                                 bio_c_msg=BIO_new_fp(stdout,BIO_NOCLOSE);
1300                         }
1301                 else
1302                         {
1303                         if (bio_c_out == NULL)
1304                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1305                         }
1306                 }
1307
1308 #ifndef OPENSSL_NO_SRP
1309         if(!app_passwd(bio_err, srppass, NULL, &srp_arg.srppassin, NULL))
1310                 {
1311                 BIO_printf(bio_err, "Error getting password\n");
1312                 goto end;
1313                 }
1314 #endif
1315
1316         ctx=SSL_CTX_new(meth);
1317         if (ctx == NULL)
1318                 {
1319                 ERR_print_errors(bio_err);
1320                 goto end;
1321                 }
1322
1323         if (sdebug)
1324                 ssl_ctx_security_debug(ctx, bio_err, sdebug);
1325
1326         if (vpm)
1327                 SSL_CTX_set1_param(ctx, vpm);
1328
1329         if (!args_ssl_call(ctx, bio_err, cctx, ssl_args, 1, no_jpake))
1330                 {
1331                 ERR_print_errors(bio_err);
1332                 goto end;
1333                 }
1334
1335         if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1336                                                 crls, crl_download))
1337                 {
1338                 BIO_printf(bio_err, "Error loading store locations\n");
1339                 ERR_print_errors(bio_err);
1340                 goto end;
1341                 }
1342
1343 #ifndef OPENSSL_NO_ENGINE
1344         if (ssl_client_engine)
1345                 {
1346                 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine))
1347                         {
1348                         BIO_puts(bio_err, "Error setting client auth engine\n");
1349                         ERR_print_errors(bio_err);
1350                         ENGINE_free(ssl_client_engine);
1351                         goto end;
1352                         }
1353                 ENGINE_free(ssl_client_engine);
1354                 }
1355 #endif
1356
1357 #ifndef OPENSSL_NO_PSK
1358 #ifdef OPENSSL_NO_JPAKE
1359         if (psk_key != NULL)
1360 #else
1361         if (psk_key != NULL || jpake_secret)
1362 #endif
1363                 {
1364                 if (c_debug)
1365                         BIO_printf(bio_c_out, "PSK key given or JPAKE in use, setting client callback\n");
1366                 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1367                 }
1368         if (srtp_profiles != NULL)
1369                 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1370 #endif
1371         if (exc) ssl_ctx_set_excert(ctx, exc);
1372         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1373          * Setting read ahead solves this problem.
1374          */
1375         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1376
1377 #if !defined(OPENSSL_NO_TLSEXT)
1378 # if !defined(OPENSSL_NO_NEXTPROTONEG)
1379         if (next_proto.data)
1380                 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1381 # endif
1382         if (alpn_in)
1383                 {
1384                 unsigned short alpn_len;
1385                 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
1386
1387                 if (alpn == NULL)
1388                         {
1389                         BIO_printf(bio_err, "Error parsing -alpn argument\n");
1390                         goto end;
1391                         }
1392                 SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len);
1393                 OPENSSL_free(alpn);
1394                 }
1395 #endif
1396 #ifndef OPENSSL_NO_TLSEXT
1397                 if (serverinfo_types_count)
1398                         {
1399                         for (i = 0; i < serverinfo_types_count; i++)
1400                                 {
1401                                 SSL_CTX_set_custom_cli_ext(ctx,
1402                                                            serverinfo_types[i],
1403                                                            NULL,
1404                                                            serverinfo_cli_cb,
1405                                                            NULL);
1406                                 }
1407                         }
1408 #endif
1409
1410         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1411 #if 0
1412         else
1413                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
1414 #endif
1415
1416         SSL_CTX_set_verify(ctx,verify,verify_callback);
1417
1418         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1419                 (!SSL_CTX_set_default_verify_paths(ctx)))
1420                 {
1421                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
1422                 ERR_print_errors(bio_err);
1423                 /* goto end; */
1424                 }
1425
1426         ssl_ctx_add_crls(ctx, crls, crl_download);
1427
1428         if (!set_cert_key_stuff(ctx,cert,key,chain,build_chain))
1429                 goto end;
1430
1431 #ifndef OPENSSL_NO_TLSEXT
1432         if (servername != NULL)
1433                 {
1434                 tlsextcbp.biodebug = bio_err;
1435                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1436                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1437                 }
1438 #ifndef OPENSSL_NO_SRP
1439         if (srp_arg.srplogin)
1440                 {
1441                 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin))
1442                         {
1443                         BIO_printf(bio_err,"Unable to set SRP username\n");
1444                         goto end;
1445                         }
1446                 srp_arg.msg = c_msg;
1447                 srp_arg.debug = c_debug ;
1448                 SSL_CTX_set_srp_cb_arg(ctx,&srp_arg);
1449                 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1450                 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1451                 if (c_msg || c_debug || srp_arg.amp == 0)
1452                         SSL_CTX_set_srp_verify_param_callback(ctx, ssl_srp_verify_param_cb);
1453                 }
1454
1455 #endif
1456         if (c_auth)
1457                 {
1458                 SSL_CTX_set_custom_cli_ext(ctx, TLSEXT_TYPE_client_authz, authz_tlsext_generate_cb, authz_tlsext_cb, bio_err);
1459                 SSL_CTX_set_custom_cli_ext(ctx, TLSEXT_TYPE_server_authz, authz_tlsext_generate_cb, authz_tlsext_cb, bio_err);
1460                 SSL_CTX_set_cli_supp_data(ctx, TLSEXT_SUPPLEMENTALDATATYPE_authz_data, suppdata_cb, auth_suppdata_generate_cb, bio_err);
1461                 }
1462 #endif
1463
1464         con=SSL_new(ctx);
1465         if (sess_in)
1466                 {
1467                 SSL_SESSION *sess;
1468                 BIO *stmp = BIO_new_file(sess_in, "r");
1469                 if (!stmp)
1470                         {
1471                         BIO_printf(bio_err, "Can't open session file %s\n",
1472                                                 sess_in);
1473                         ERR_print_errors(bio_err);
1474                         goto end;
1475                         }
1476                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1477                 BIO_free(stmp);
1478                 if (!sess)
1479                         {
1480                         BIO_printf(bio_err, "Can't open session file %s\n",
1481                                                 sess_in);
1482                         ERR_print_errors(bio_err);
1483                         goto end;
1484                         }
1485                 SSL_set_session(con, sess);
1486                 SSL_SESSION_free(sess);
1487                 }
1488 #ifndef OPENSSL_NO_TLSEXT
1489         if (servername != NULL)
1490                 {
1491                 if (!SSL_set_tlsext_host_name(con,servername))
1492                         {
1493                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
1494                         ERR_print_errors(bio_err);
1495                         goto end;
1496                         }
1497                 }
1498 #endif
1499 #ifndef OPENSSL_NO_KRB5
1500         if (con  &&  (kctx = kssl_ctx_new()) != NULL)
1501                 {
1502                 SSL_set0_kssl_ctx(con, kctx);
1503                 kssl_ctx_setstring(kctx, KSSL_SERVER, host);
1504                 }
1505 #endif  /* OPENSSL_NO_KRB5  */
1506 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
1507 #if 0
1508 #ifdef TLSEXT_TYPE_opaque_prf_input
1509         SSL_set_tlsext_opaque_prf_input(con, "Test client", 11);
1510 #endif
1511 #endif
1512
1513 re_start:
1514 #ifdef NO_SYS_UN_H
1515         if (init_client(&s,host,port,socket_type) == 0)
1516 #else
1517         if ((!unix_path && (init_client(&s,host,port,socket_type) == 0)) ||
1518                         (unix_path && (init_client_unix(&s,unix_path) == 0)))
1519 #endif
1520                 {
1521                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
1522                 SHUTDOWN(s);
1523                 goto end;
1524                 }
1525         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
1526
1527 #ifdef FIONBIO
1528         if (c_nbio)
1529                 {
1530                 unsigned long l=1;
1531                 BIO_printf(bio_c_out,"turning on non blocking io\n");
1532                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
1533                         {
1534                         ERR_print_errors(bio_err);
1535                         goto end;
1536                         }
1537                 }
1538 #endif
1539         if (c_Pause & 0x01) SSL_set_debug(con, 1);
1540
1541         if (socket_type == SOCK_DGRAM)
1542                 {
1543
1544                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
1545                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
1546                         {
1547                         BIO_printf(bio_err, "getsockname:errno=%d\n",
1548                                 get_last_socket_error());
1549                         SHUTDOWN(s);
1550                         goto end;
1551                         }
1552
1553                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
1554
1555                 if (enable_timeouts)
1556                         {
1557                         timeout.tv_sec = 0;
1558                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1559                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1560
1561                         timeout.tv_sec = 0;
1562                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
1563                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1564                         }
1565
1566                 if (socket_mtu > 28)
1567                         {
1568                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1569                         SSL_set_mtu(con, socket_mtu - 28);
1570                         }
1571                 else
1572                         /* want to do MTU discovery */
1573                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1574                 }
1575         else
1576                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
1577
1578         if (nbio_test)
1579                 {
1580                 BIO *test;
1581
1582                 test=BIO_new(BIO_f_nbio_test());
1583                 sbio=BIO_push(test,sbio);
1584                 }
1585
1586         if (c_debug)
1587                 {
1588                 SSL_set_debug(con, 1);
1589                 BIO_set_callback(sbio,bio_dump_callback);
1590                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
1591                 }
1592         if (c_msg)
1593                 {
1594 #ifndef OPENSSL_NO_SSL_TRACE
1595                 if (c_msg == 2)
1596                         SSL_set_msg_callback(con, SSL_trace);
1597                 else
1598 #endif
1599                         SSL_set_msg_callback(con, msg_cb);
1600                 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
1601                 }
1602 #ifndef OPENSSL_NO_TLSEXT
1603         if (c_tlsextdebug)
1604                 {
1605                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1606                 SSL_set_tlsext_debug_arg(con, bio_c_out);
1607                 }
1608         if (c_status_req)
1609                 {
1610                 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
1611                 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
1612                 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
1613 #if 0
1614 {
1615 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
1616 OCSP_RESPID *id = OCSP_RESPID_new();
1617 id->value.byKey = ASN1_OCTET_STRING_new();
1618 id->type = V_OCSP_RESPID_KEY;
1619 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
1620 sk_OCSP_RESPID_push(ids, id);
1621 SSL_set_tlsext_status_ids(con, ids);
1622 }
1623 #endif
1624                 }
1625 #endif
1626 #ifndef OPENSSL_NO_JPAKE
1627         if (jpake_secret)
1628                 jpake_client_auth(bio_c_out, sbio, jpake_secret);
1629 #endif
1630
1631         SSL_set_bio(con,sbio,sbio);
1632         SSL_set_connect_state(con);
1633
1634         /* ok, lets connect */
1635         width=SSL_get_fd(con)+1;
1636
1637         read_tty=1;
1638         write_tty=0;
1639         tty_on=0;
1640         read_ssl=1;
1641         write_ssl=1;
1642
1643         cbuf_len=0;
1644         cbuf_off=0;
1645         sbuf_len=0;
1646         sbuf_off=0;
1647
1648         /* This is an ugly hack that does a lot of assumptions */
1649         /* We do have to handle multi-line responses which may come
1650            in a single packet or not. We therefore have to use
1651            BIO_gets() which does need a buffering BIO. So during
1652            the initial chitchat we do push a buffering BIO into the
1653            chain that is removed again later on to not disturb the
1654            rest of the s_client operation. */
1655         if (starttls_proto == PROTO_SMTP)
1656                 {
1657                 int foundit=0;
1658                 BIO *fbio = BIO_new(BIO_f_buffer());
1659                 BIO_push(fbio, sbio);
1660                 /* wait for multi-line response to end from SMTP */
1661                 do
1662                         {
1663                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1664                         }
1665                 while (mbuf_len>3 && mbuf[3]=='-');
1666                 /* STARTTLS command requires EHLO... */
1667                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
1668                 (void)BIO_flush(fbio);
1669                 /* wait for multi-line response to end EHLO SMTP response */
1670                 do
1671                         {
1672                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1673                         if (strstr(mbuf,"STARTTLS"))
1674                                 foundit=1;
1675                         }
1676                 while (mbuf_len>3 && mbuf[3]=='-');
1677                 (void)BIO_flush(fbio);
1678                 BIO_pop(fbio);
1679                 BIO_free(fbio);
1680                 if (!foundit)
1681                         BIO_printf(bio_err,
1682                                    "didn't found starttls in server response,"
1683                                    " try anyway...\n");
1684                 BIO_printf(sbio,"STARTTLS\r\n");
1685                 BIO_read(sbio,sbuf,BUFSIZZ);
1686                 }
1687         else if (starttls_proto == PROTO_POP3)
1688                 {
1689                 BIO_read(sbio,mbuf,BUFSIZZ);
1690                 BIO_printf(sbio,"STLS\r\n");
1691                 BIO_read(sbio,sbuf,BUFSIZZ);
1692                 }
1693         else if (starttls_proto == PROTO_IMAP)
1694                 {
1695                 int foundit=0;
1696                 BIO *fbio = BIO_new(BIO_f_buffer());
1697                 BIO_push(fbio, sbio);
1698                 BIO_gets(fbio,mbuf,BUFSIZZ);
1699                 /* STARTTLS command requires CAPABILITY... */
1700                 BIO_printf(fbio,". CAPABILITY\r\n");
1701                 (void)BIO_flush(fbio);
1702                 /* wait for multi-line CAPABILITY response */
1703                 do
1704                         {
1705                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1706                         if (strstr(mbuf,"STARTTLS"))
1707                                 foundit=1;
1708                         }
1709                 while (mbuf_len>3 && mbuf[0]!='.');
1710                 (void)BIO_flush(fbio);
1711                 BIO_pop(fbio);
1712                 BIO_free(fbio);
1713                 if (!foundit)
1714                         BIO_printf(bio_err,
1715                                    "didn't found STARTTLS in server response,"
1716                                    " try anyway...\n");
1717                 BIO_printf(sbio,". STARTTLS\r\n");
1718                 BIO_read(sbio,sbuf,BUFSIZZ);
1719                 }
1720         else if (starttls_proto == PROTO_FTP)
1721                 {
1722                 BIO *fbio = BIO_new(BIO_f_buffer());
1723                 BIO_push(fbio, sbio);
1724                 /* wait for multi-line response to end from FTP */
1725                 do
1726                         {
1727                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1728                         }
1729                 while (mbuf_len>3 && mbuf[3]=='-');
1730                 (void)BIO_flush(fbio);
1731                 BIO_pop(fbio);
1732                 BIO_free(fbio);
1733                 BIO_printf(sbio,"AUTH TLS\r\n");
1734                 BIO_read(sbio,sbuf,BUFSIZZ);
1735                 }
1736         if (starttls_proto == PROTO_XMPP)
1737                 {
1738                 int seen = 0;
1739                 BIO_printf(sbio,"<stream:stream "
1740                     "xmlns:stream='http://etherx.jabber.org/streams' "
1741                     "xmlns='jabber:client' to='%s' version='1.0'>", xmpphost ?
1742                            xmpphost : host);
1743                 seen = BIO_read(sbio,mbuf,BUFSIZZ);
1744                 mbuf[seen] = 0;
1745                 while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'") &&
1746                                 !strstr(mbuf, "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\""))
1747                         {
1748                         seen = BIO_read(sbio,mbuf,BUFSIZZ);
1749
1750                         if (seen <= 0)
1751                                 goto shut;
1752
1753                         mbuf[seen] = 0;
1754                         }
1755                 BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
1756                 seen = BIO_read(sbio,sbuf,BUFSIZZ);
1757                 sbuf[seen] = 0;
1758                 if (!strstr(sbuf, "<proceed"))
1759                         goto shut;
1760                 mbuf[0] = 0;
1761                 }
1762
1763         for (;;)
1764                 {
1765                 FD_ZERO(&readfds);
1766                 FD_ZERO(&writefds);
1767
1768                 if ((SSL_version(con) == DTLS1_VERSION) &&
1769                         DTLSv1_get_timeout(con, &timeout))
1770                         timeoutp = &timeout;
1771                 else
1772                         timeoutp = NULL;
1773
1774                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1775                         {
1776                         in_init=1;
1777                         tty_on=0;
1778                         }
1779                 else
1780                         {
1781                         tty_on=1;
1782                         if (in_init)
1783                                 {
1784                                 in_init=0;
1785 #if 0 /* This test doesn't really work as intended (needs to be fixed) */
1786 #ifndef OPENSSL_NO_TLSEXT
1787                                 if (servername != NULL && !SSL_session_reused(con))
1788                                         {
1789                                         BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
1790                                         }
1791 #endif
1792 #endif
1793                                 if (sess_out)
1794                                         {
1795                                         BIO *stmp = BIO_new_file(sess_out, "w");
1796                                         if (stmp)
1797                                                 {
1798                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1799                                                 BIO_free(stmp);
1800                                                 }
1801                                         else
1802                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1803                                         }
1804                                 if (c_brief)
1805                                         {
1806                                         BIO_puts(bio_err,
1807                                                 "CONNECTION ESTABLISHED\n");
1808                                         print_ssl_summary(bio_err, con);
1809                                         }
1810                                 /*handshake is complete - free the generated supp data allocated in the callback */
1811                                 if (generated_supp_data)
1812                                         {
1813                                         OPENSSL_free(generated_supp_data);
1814                                         generated_supp_data = NULL;
1815                                         }
1816
1817                                 print_stuff(bio_c_out,con,full_log);
1818                                 if (full_log > 0) full_log--;
1819
1820                                 if (starttls_proto)
1821                                         {
1822                                         BIO_printf(bio_err,"%s",mbuf);
1823                                         /* We don't need to know any more */
1824                                         starttls_proto = PROTO_OFF;
1825                                         }
1826
1827                                 if (reconnect)
1828                                         {
1829                                         reconnect--;
1830                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1831                                         SSL_shutdown(con);
1832                                         SSL_set_connect_state(con);
1833                                         SHUTDOWN(SSL_get_fd(con));
1834                                         goto re_start;
1835                                         }
1836                                 }
1837                         }
1838
1839                 ssl_pending = read_ssl && SSL_pending(con);
1840
1841                 if (!ssl_pending)
1842                         {
1843 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
1844                         if (tty_on)
1845                                 {
1846                                 if (read_tty)  openssl_fdset(fileno(stdin),&readfds);
1847                                 if (write_tty) openssl_fdset(fileno(stdout),&writefds);
1848                                 }
1849                         if (read_ssl)
1850                                 openssl_fdset(SSL_get_fd(con),&readfds);
1851                         if (write_ssl)
1852                                 openssl_fdset(SSL_get_fd(con),&writefds);
1853 #else
1854                         if(!tty_on || !write_tty) {
1855                                 if (read_ssl)
1856                                         openssl_fdset(SSL_get_fd(con),&readfds);
1857                                 if (write_ssl)
1858                                         openssl_fdset(SSL_get_fd(con),&writefds);
1859                         }
1860 #endif
1861 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1862                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1863
1864                         /* Note: under VMS with SOCKETSHR the second parameter
1865                          * is currently of type (int *) whereas under other
1866                          * systems it is (void *) if you don't have a cast it
1867                          * will choke the compiler: if you do have a cast then
1868                          * you can either go for (int *) or (void *).
1869                          */
1870 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1871                         /* Under Windows/DOS we make the assumption that we can
1872                          * always write to the tty: therefore if we need to
1873                          * write to the tty we just fall through. Otherwise
1874                          * we timeout the select every second and see if there
1875                          * are any keypresses. Note: this is a hack, in a proper
1876                          * Windows application we wouldn't do this.
1877                          */
1878                         i=0;
1879                         if(!write_tty) {
1880                                 if(read_tty) {
1881                                         tv.tv_sec = 1;
1882                                         tv.tv_usec = 0;
1883                                         i=select(width,(void *)&readfds,(void *)&writefds,
1884                                                  NULL,&tv);
1885 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1886                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1887 #else
1888                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1889 #endif
1890                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1891                                          NULL,timeoutp);
1892                         }
1893 #elif defined(OPENSSL_SYS_NETWARE)
1894                         if(!write_tty) {
1895                                 if(read_tty) {
1896                                         tv.tv_sec = 1;
1897                                         tv.tv_usec = 0;
1898                                         i=select(width,(void *)&readfds,(void *)&writefds,
1899                                                 NULL,&tv);
1900                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1901                                         NULL,timeoutp);
1902                         }
1903 #elif defined(OPENSSL_SYS_BEOS_R5)
1904                         /* Under BeOS-R5 the situation is similar to DOS */
1905                         i=0;
1906                         stdin_set = 0;
1907                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1908                         if(!write_tty) {
1909                                 if(read_tty) {
1910                                         tv.tv_sec = 1;
1911                                         tv.tv_usec = 0;
1912                                         i=select(width,(void *)&readfds,(void *)&writefds,
1913                                                  NULL,&tv);
1914                                         if (read(fileno(stdin), sbuf, 0) >= 0)
1915                                                 stdin_set = 1;
1916                                         if (!i && (stdin_set != 1 || !read_tty))
1917                                                 continue;
1918                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1919                                          NULL,timeoutp);
1920                         }
1921                         (void)fcntl(fileno(stdin), F_SETFL, 0);
1922 #else
1923                         i=select(width,(void *)&readfds,(void *)&writefds,
1924                                  NULL,timeoutp);
1925 #endif
1926                         if ( i < 0)
1927                                 {
1928                                 BIO_printf(bio_err,"bad select %d\n",
1929                                 get_last_socket_error());
1930                                 goto shut;
1931                                 /* goto end; */
1932                                 }
1933                         }
1934
1935                 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
1936                         {
1937                         BIO_printf(bio_err,"TIMEOUT occurred\n");
1938                         }
1939
1940                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1941                         {
1942                         k=SSL_write(con,&(cbuf[cbuf_off]),
1943                                 (unsigned int)cbuf_len);
1944                         switch (SSL_get_error(con,k))
1945                                 {
1946                         case SSL_ERROR_NONE:
1947                                 cbuf_off+=k;
1948                                 cbuf_len-=k;
1949                                 if (k <= 0) goto end;
1950                                 /* we have done a  write(con,NULL,0); */
1951                                 if (cbuf_len <= 0)
1952                                         {
1953                                         read_tty=1;
1954                                         write_ssl=0;
1955                                         }
1956                                 else /* if (cbuf_len > 0) */
1957                                         {
1958                                         read_tty=0;
1959                                         write_ssl=1;
1960                                         }
1961                                 break;
1962                         case SSL_ERROR_WANT_WRITE:
1963                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1964                                 write_ssl=1;
1965                                 read_tty=0;
1966                                 break;
1967                         case SSL_ERROR_WANT_READ:
1968                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1969                                 write_tty=0;
1970                                 read_ssl=1;
1971                                 write_ssl=0;
1972                                 break;
1973                         case SSL_ERROR_WANT_X509_LOOKUP:
1974                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1975                                 break;
1976                         case SSL_ERROR_ZERO_RETURN:
1977                                 if (cbuf_len != 0)
1978                                         {
1979                                         BIO_printf(bio_c_out,"shutdown\n");
1980                                         ret = 0;
1981                                         goto shut;
1982                                         }
1983                                 else
1984                                         {
1985                                         read_tty=1;
1986                                         write_ssl=0;
1987                                         break;
1988                                         }
1989
1990                         case SSL_ERROR_SYSCALL:
1991                                 if ((k != 0) || (cbuf_len != 0))
1992                                         {
1993                                         BIO_printf(bio_err,"write:errno=%d\n",
1994                                                 get_last_socket_error());
1995                                         goto shut;
1996                                         }
1997                                 else
1998                                         {
1999                                         read_tty=1;
2000                                         write_ssl=0;
2001                                         }
2002                                 break;
2003                         case SSL_ERROR_SSL:
2004                                 ERR_print_errors(bio_err);
2005                                 goto shut;
2006                                 }
2007                         }
2008 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
2009                 /* Assume Windows/DOS/BeOS can always write */
2010                 else if (!ssl_pending && write_tty)
2011 #else
2012                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
2013 #endif
2014                         {
2015 #ifdef CHARSET_EBCDIC
2016                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
2017 #endif
2018                         i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
2019
2020                         if (i <= 0)
2021                                 {
2022                                 BIO_printf(bio_c_out,"DONE\n");
2023                                 ret = 0;
2024                                 goto shut;
2025                                 /* goto end; */
2026                                 }
2027
2028                         sbuf_len-=i;;
2029                         sbuf_off+=i;
2030                         if (sbuf_len <= 0)
2031                                 {
2032                                 read_ssl=1;
2033                                 write_tty=0;
2034                                 }
2035                         }
2036                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
2037                         {
2038 #ifdef RENEG
2039 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
2040 #endif
2041 #if 1
2042                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
2043 #else
2044 /* Demo for pending and peek :-) */
2045                         k=SSL_read(con,sbuf,16);
2046 { char zbuf[10240];
2047 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
2048 }
2049 #endif
2050
2051                         switch (SSL_get_error(con,k))
2052                                 {
2053                         case SSL_ERROR_NONE:
2054                                 if (k <= 0)
2055                                         goto end;
2056                                 sbuf_off=0;
2057                                 sbuf_len=k;
2058
2059                                 read_ssl=0;
2060                                 write_tty=1;
2061                                 break;
2062                         case SSL_ERROR_WANT_WRITE:
2063                                 BIO_printf(bio_c_out,"read W BLOCK\n");
2064                                 write_ssl=1;
2065                                 read_tty=0;
2066                                 break;
2067                         case SSL_ERROR_WANT_READ:
2068                                 BIO_printf(bio_c_out,"read R BLOCK\n");
2069                                 write_tty=0;
2070                                 read_ssl=1;
2071                                 if ((read_tty == 0) && (write_ssl == 0))
2072                                         write_ssl=1;
2073                                 break;
2074                         case SSL_ERROR_WANT_X509_LOOKUP:
2075                                 BIO_printf(bio_c_out,"read X BLOCK\n");
2076                                 break;
2077                         case SSL_ERROR_SYSCALL:
2078                                 ret=get_last_socket_error();
2079                                 if (c_brief)
2080                                         BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
2081                                 else
2082                                         BIO_printf(bio_err,"read:errno=%d\n",ret);
2083                                 goto shut;
2084                         case SSL_ERROR_ZERO_RETURN:
2085                                 BIO_printf(bio_c_out,"closed\n");
2086                                 ret=0;
2087                                 goto shut;
2088                         case SSL_ERROR_SSL:
2089                                 ERR_print_errors(bio_err);
2090                                 goto shut;
2091                                 /* break; */
2092                                 }
2093                         }
2094
2095 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2096 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
2097                 else if (_kbhit())
2098 #else
2099                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
2100 #endif
2101 #elif defined (OPENSSL_SYS_NETWARE)
2102                 else if (_kbhit())
2103 #elif defined(OPENSSL_SYS_BEOS_R5)
2104                 else if (stdin_set)
2105 #else
2106                 else if (FD_ISSET(fileno(stdin),&readfds))
2107 #endif
2108                         {
2109                         if (crlf)
2110                                 {
2111                                 int j, lf_num;
2112
2113                                 i=raw_read_stdin(cbuf,BUFSIZZ/2);
2114                                 lf_num = 0;
2115                                 /* both loops are skipped when i <= 0 */
2116                                 for (j = 0; j < i; j++)
2117                                         if (cbuf[j] == '\n')
2118                                                 lf_num++;
2119                                 for (j = i-1; j >= 0; j--)
2120                                         {
2121                                         cbuf[j+lf_num] = cbuf[j];
2122                                         if (cbuf[j] == '\n')
2123                                                 {
2124                                                 lf_num--;
2125                                                 i++;
2126                                                 cbuf[j+lf_num] = '\r';
2127                                                 }
2128                                         }
2129                                 assert(lf_num == 0);
2130                                 }
2131                         else
2132                                 i=raw_read_stdin(cbuf,BUFSIZZ);
2133
2134                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
2135                                 {
2136                                 BIO_printf(bio_err,"DONE\n");
2137                                 ret=0;
2138                                 goto shut;
2139                                 }
2140
2141                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
2142                                 {
2143                                 BIO_printf(bio_err,"RENEGOTIATING\n");
2144                                 SSL_renegotiate(con);
2145                                 cbuf_len=0;
2146                                 }
2147 #ifndef OPENSSL_NO_HEARTBEATS
2148                         else if ((!c_ign_eof) && (cbuf[0] == 'B'))
2149                                 {
2150                                 BIO_printf(bio_err,"HEARTBEATING\n");
2151                                 SSL_heartbeat(con);
2152                                 cbuf_len=0;
2153                                 }
2154 #endif
2155                         else
2156                                 {
2157                                 cbuf_len=i;
2158                                 cbuf_off=0;
2159 #ifdef CHARSET_EBCDIC
2160                                 ebcdic2ascii(cbuf, cbuf, i);
2161 #endif
2162                                 }
2163
2164                         write_ssl=1;
2165                         read_tty=0;
2166                         }
2167                 }
2168
2169         ret=0;
2170 shut:
2171         if (in_init)
2172                 print_stuff(bio_c_out,con,full_log);
2173         SSL_shutdown(con);
2174         SHUTDOWN(SSL_get_fd(con));
2175 end:
2176         if (con != NULL)
2177                 {
2178                 if (prexit != 0)
2179                         print_stuff(bio_c_out,con,1);
2180                 SSL_free(con);
2181                 }
2182 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2183         if (next_proto.data)
2184                 OPENSSL_free(next_proto.data);
2185 #endif
2186         if (ctx != NULL) SSL_CTX_free(ctx);
2187         if (cert)
2188                 X509_free(cert);
2189         if (crls)
2190                 sk_X509_CRL_pop_free(crls, X509_CRL_free);
2191         if (key)
2192                 EVP_PKEY_free(key);
2193         if (chain)
2194                 sk_X509_pop_free(chain, X509_free);
2195         if (pass)
2196                 OPENSSL_free(pass);
2197         if (vpm)
2198                 X509_VERIFY_PARAM_free(vpm);
2199         ssl_excert_free(exc);
2200         if (ssl_args)
2201                 sk_OPENSSL_STRING_free(ssl_args);
2202         if (cctx)
2203                 SSL_CONF_CTX_free(cctx);
2204 #ifndef OPENSSL_NO_JPAKE
2205         if (jpake_secret && psk_key)
2206                 OPENSSL_free(psk_key);
2207 #endif
2208         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
2209         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
2210         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
2211         if (bio_c_out != NULL)
2212                 {
2213                 BIO_free(bio_c_out);
2214                 bio_c_out=NULL;
2215                 }
2216         if (bio_c_msg != NULL)
2217                 {
2218                 BIO_free(bio_c_msg);
2219                 bio_c_msg=NULL;
2220                 }
2221         apps_shutdown();
2222         OPENSSL_EXIT(ret);
2223         }
2224
2225
2226 static void print_stuff(BIO *bio, SSL *s, int full)
2227         {
2228         X509 *peer=NULL;
2229         char *p;
2230         static const char *space="                ";
2231         char buf[BUFSIZ];
2232         STACK_OF(X509) *sk;
2233         STACK_OF(X509_NAME) *sk2;
2234         const SSL_CIPHER *c;
2235         X509_NAME *xn;
2236         int j,i;
2237 #ifndef OPENSSL_NO_COMP
2238         const COMP_METHOD *comp, *expansion;
2239 #endif
2240         unsigned char *exportedkeymat;
2241
2242         if (full)
2243                 {
2244                 int got_a_chain = 0;
2245
2246                 sk=SSL_get_peer_cert_chain(s);
2247                 if (sk != NULL)
2248                         {
2249                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
2250
2251                         BIO_printf(bio,"---\nCertificate chain\n");
2252                         for (i=0; i<sk_X509_num(sk); i++)
2253                                 {
2254                                 X509_NAME_oneline(X509_get_subject_name(
2255                                         sk_X509_value(sk,i)),buf,sizeof buf);
2256                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
2257                                 X509_NAME_oneline(X509_get_issuer_name(
2258                                         sk_X509_value(sk,i)),buf,sizeof buf);
2259                                 BIO_printf(bio,"   i:%s\n",buf);
2260                                 if (c_showcerts)
2261                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
2262                                 }
2263                         }
2264
2265                 BIO_printf(bio,"---\n");
2266                 peer=SSL_get_peer_certificate(s);
2267                 if (peer != NULL)
2268                         {
2269                         BIO_printf(bio,"Server certificate\n");
2270                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
2271                                 PEM_write_bio_X509(bio,peer);
2272                         X509_NAME_oneline(X509_get_subject_name(peer),
2273                                 buf,sizeof buf);
2274                         BIO_printf(bio,"subject=%s\n",buf);
2275                         X509_NAME_oneline(X509_get_issuer_name(peer),
2276                                 buf,sizeof buf);
2277                         BIO_printf(bio,"issuer=%s\n",buf);
2278                         }
2279                 else
2280                         BIO_printf(bio,"no peer certificate available\n");
2281
2282                 sk2=SSL_get_client_CA_list(s);
2283                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
2284                         {
2285                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
2286                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
2287                                 {
2288                                 xn=sk_X509_NAME_value(sk2,i);
2289                                 X509_NAME_oneline(xn,buf,sizeof(buf));
2290                                 BIO_write(bio,buf,strlen(buf));
2291                                 BIO_write(bio,"\n",1);
2292                                 }
2293                         }
2294                 else
2295                         {
2296                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
2297                         }
2298                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
2299                 if (p != NULL)
2300                         {
2301                         /* This works only for SSL 2.  In later protocol
2302                          * versions, the client does not know what other
2303                          * ciphers (in addition to the one to be used
2304                          * in the current connection) the server supports. */
2305
2306                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
2307                         j=i=0;
2308                         while (*p)
2309                                 {
2310                                 if (*p == ':')
2311                                         {
2312                                         BIO_write(bio,space,15-j%25);
2313                                         i++;
2314                                         j=0;
2315                                         BIO_write(bio,((i%3)?" ":"\n"),1);
2316                                         }
2317                                 else
2318                                         {
2319                                         BIO_write(bio,p,1);
2320                                         j++;
2321                                         }
2322                                 p++;
2323                                 }
2324                         BIO_write(bio,"\n",1);
2325                         }
2326
2327                 ssl_print_sigalgs(bio, s);
2328                 ssl_print_tmp_key(bio, s);
2329
2330                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
2331                         BIO_number_read(SSL_get_rbio(s)),
2332                         BIO_number_written(SSL_get_wbio(s)));
2333                 }
2334         BIO_printf(bio,(SSL_cache_hit(s)?"---\nReused, ":"---\nNew, "));
2335         c=SSL_get_current_cipher(s);
2336         BIO_printf(bio,"%s, Cipher is %s\n",
2337                 SSL_CIPHER_get_version(c),
2338                 SSL_CIPHER_get_name(c));
2339         if (peer != NULL) {
2340                 EVP_PKEY *pktmp;
2341                 pktmp = X509_get_pubkey(peer);
2342                 BIO_printf(bio,"Server public key is %d bit\n",
2343                                                          EVP_PKEY_bits(pktmp));
2344                 EVP_PKEY_free(pktmp);
2345         }
2346         BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
2347                         SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
2348 #ifndef OPENSSL_NO_COMP
2349         comp=SSL_get_current_compression(s);
2350         expansion=SSL_get_current_expansion(s);
2351         BIO_printf(bio,"Compression: %s\n",
2352                 comp ? SSL_COMP_get_name(comp) : "NONE");
2353         BIO_printf(bio,"Expansion: %s\n",
2354                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
2355 #endif
2356
2357 #ifdef SSL_DEBUG
2358         {
2359         /* Print out local port of connection: useful for debugging */
2360         int sock;
2361         struct sockaddr_in ladd;
2362         socklen_t ladd_size = sizeof(ladd);
2363         sock = SSL_get_fd(s);
2364         getsockname(sock, (struct sockaddr *)&ladd, &ladd_size);
2365         BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port));
2366         }
2367 #endif
2368
2369 #if !defined(OPENSSL_NO_TLSEXT)
2370 # if !defined(OPENSSL_NO_NEXTPROTONEG)
2371         if (next_proto.status != -1) {
2372                 const unsigned char *proto;
2373                 unsigned int proto_len;
2374                 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
2375                 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
2376                 BIO_write(bio, proto, proto_len);
2377                 BIO_write(bio, "\n", 1);
2378         }
2379 # endif
2380         {
2381                 const unsigned char *proto;
2382                 unsigned int proto_len;
2383                 SSL_get0_alpn_selected(s, &proto, &proto_len);
2384                 if (proto_len > 0)
2385                         {
2386                         BIO_printf(bio, "ALPN protocol: ");
2387                         BIO_write(bio, proto, proto_len);
2388                         BIO_write(bio, "\n", 1);
2389                         }
2390                 else
2391                         BIO_printf(bio, "No ALPN negotiated\n");
2392         }
2393 #endif
2394
2395         {
2396         SRTP_PROTECTION_PROFILE *srtp_profile=SSL_get_selected_srtp_profile(s);
2397
2398         if(srtp_profile)
2399                 BIO_printf(bio,"SRTP Extension negotiated, profile=%s\n",
2400                            srtp_profile->name);
2401         }
2402
2403         SSL_SESSION_print(bio,SSL_get_session(s));
2404         if (keymatexportlabel != NULL)
2405                 {
2406                 BIO_printf(bio, "Keying material exporter:\n");
2407                 BIO_printf(bio, "    Label: '%s'\n", keymatexportlabel);
2408                 BIO_printf(bio, "    Length: %i bytes\n", keymatexportlen);
2409                 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2410                 if (exportedkeymat != NULL)
2411                         {
2412                         if (!SSL_export_keying_material(s, exportedkeymat,
2413                                                         keymatexportlen,
2414                                                         keymatexportlabel,
2415                                                         strlen(keymatexportlabel),
2416                                                         NULL, 0, 0))
2417                                 {
2418                                 BIO_printf(bio, "    Error\n");
2419                                 }
2420                         else
2421                                 {
2422                                 BIO_printf(bio, "    Keying material: ");
2423                                 for (i=0; i<keymatexportlen; i++)
2424                                         BIO_printf(bio, "%02X",
2425                                                    exportedkeymat[i]);
2426                                 BIO_printf(bio, "\n");
2427                                 }
2428                         OPENSSL_free(exportedkeymat);
2429                         }
2430                 }
2431         BIO_printf(bio,"---\n");
2432         if (peer != NULL)
2433                 X509_free(peer);
2434         /* flush, or debugging output gets mixed with http response */
2435         (void)BIO_flush(bio);
2436         }
2437
2438 #ifndef OPENSSL_NO_TLSEXT
2439
2440 static int ocsp_resp_cb(SSL *s, void *arg)
2441         {
2442         const unsigned char *p;
2443         int len;
2444         OCSP_RESPONSE *rsp;
2445         len = SSL_get_tlsext_status_ocsp_resp(s, &p);
2446         BIO_puts(arg, "OCSP response: ");
2447         if (!p)
2448                 {
2449                 BIO_puts(arg, "no response sent\n");
2450                 return 1;
2451                 }
2452         rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
2453         if (!rsp)
2454                 {
2455                 BIO_puts(arg, "response parse error\n");
2456                 BIO_dump_indent(arg, (char *)p, len, 4);
2457                 return 0;
2458                 }
2459         BIO_puts(arg, "\n======================================\n");
2460         OCSP_RESPONSE_print(arg, rsp, 0);
2461         BIO_puts(arg, "======================================\n");
2462         OCSP_RESPONSE_free(rsp);
2463         return 1;
2464         }
2465
2466 static int authz_tlsext_cb(SSL *s, unsigned short ext_type,
2467                            const unsigned char *in,
2468                            unsigned short inlen, int *al,
2469                            void *arg)
2470         {
2471         if (TLSEXT_TYPE_server_authz == ext_type)
2472                 server_provided_server_authz
2473                   = (memchr(in, TLSEXT_AUTHZDATAFORMAT_dtcp, inlen) != NULL);
2474
2475         if (TLSEXT_TYPE_client_authz == ext_type)
2476                 server_provided_client_authz
2477                   = (memchr(in, TLSEXT_AUTHZDATAFORMAT_dtcp, inlen) != NULL);
2478
2479         return 1;
2480         }
2481
2482 static int authz_tlsext_generate_cb(SSL *s, unsigned short ext_type,
2483                                     const unsigned char **out, unsigned short *outlen,
2484                                     int *al, void *arg)
2485         {
2486         if (c_auth)
2487                 {
2488                 /*if auth_require_reneg flag is set, only send extensions if
2489                   renegotiation has occurred */
2490                 if (!c_auth_require_reneg || (c_auth_require_reneg && SSL_num_renegotiations(s)))
2491                         {
2492                         *out = auth_ext_data;
2493                         *outlen = 1;
2494                         return 1;
2495                         }
2496                 }
2497         /* no auth extension to send */
2498         return -1;
2499         }
2500
2501 static int suppdata_cb(SSL *s, unsigned short supp_data_type,
2502                        const unsigned char *in,
2503                        unsigned short inlen, int *al,
2504                        void *arg)
2505         {
2506         if (supp_data_type == TLSEXT_SUPPLEMENTALDATATYPE_authz_data)
2507                 {
2508                 most_recent_supplemental_data = in;
2509                 most_recent_supplemental_data_length = inlen;
2510                 }
2511         return 1;
2512         }
2513
2514 static int auth_suppdata_generate_cb(SSL *s, unsigned short supp_data_type,
2515                                      const unsigned char **out,
2516                                      unsigned short *outlen, int *al, void *arg)
2517         {
2518         if (c_auth && server_provided_client_authz && server_provided_server_authz)
2519                 {
2520                 /*if auth_require_reneg flag is set, only send supplemental data if
2521                   renegotiation has occurred */
2522                 if (!c_auth_require_reneg
2523                     || (c_auth_require_reneg && SSL_num_renegotiations(s)))
2524                         {
2525                         generated_supp_data = OPENSSL_malloc(10);
2526                         memcpy(generated_supp_data, "5432154321", 10);
2527                         *out = generated_supp_data;
2528                         *outlen = 10;
2529                         return 1;
2530                         }
2531                 }
2532         /* no supplemental data to send */
2533         return -1;
2534         }
2535
2536 #endif