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 #include "s_apps.h"
 167 #include "timeouts.h"
 168
 169 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 170 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 171 #undef FIONBIO
 172 #endif
 173
 174 #if defined(OPENSSL_SYS_BEOS_R5)
 175 #include <fcntl.h>
 176 #endif
 177
 178 #undef PROG
 179 #define PROG    s_client_main
 180
 181 /*#define SSL_HOST_NAME "www.netscape.com" */
 182 /*#define SSL_HOST_NAME "193.118.187.102" */
 183 #define SSL_HOST_NAME   "localhost"
 184
 185 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 186
 187 #undef BUFSIZZ
 188 #define BUFSIZZ 1024*8
 189
 190 extern int verify_depth;
 191 extern int verify_error;
 192 extern int verify_return_error;
 193
 194 #ifdef FIONBIO
 195 static int c_nbio=0;
 196 #endif
 197 static int c_Pause=0;
 198 static int c_debug=0;
 199 #ifndef OPENSSL_NO_TLSEXT
 200 static int c_tlsextdebug=0;
 201 static int c_status_req=0;
 202 #endif
 203 static int c_msg=0;
 204 static int c_showcerts=0;
 205
 206 static void sc_usage(void);
 207 static void print_stuff(BIO *berr,SSL *con,int full);
 208 #ifndef OPENSSL_NO_TLSEXT
 209 static int ocsp_resp_cb(SSL *s, void *arg);
 210 #endif
 211 static BIO *bio_c_out=NULL;
 212 static int c_quiet=0;
 213 static int c_ign_eof=0;
 214
 215 #ifndef OPENSSL_NO_PSK
 216 /* Default PSK identity and key */
 217 static char *psk_identity="Client_identity";
 218 static char *psk_key=NULL; /* by default PSK is not used */
 219
 220 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
 221         unsigned int max_identity_len, unsigned char *psk,
 222         unsigned int max_psk_len)
 223         {
 224         unsigned int psk_len = 0;
 225         int ret;
 226         BIGNUM *bn=NULL;
 227
 228         if (c_debug)
 229                 BIO_printf(bio_c_out, "psk_client_cb\n");
 230         if (!hint)
 231                 {
 232                 /* no ServerKeyExchange message*/
 233                 if (c_debug)
 234                         BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n");
 235                 }
 236         else if (c_debug)
 237                 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
 238
 239         /* lookup PSK identity and PSK key based on the given identity hint here */
 240         ret = BIO_snprintf(identity, max_identity_len, psk_identity);
 241         if (ret < 0 || (unsigned int)ret > max_identity_len)
 242                 goto out_err;
 243         if (c_debug)
 244                 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret);
 245         ret=BN_hex2bn(&bn, psk_key);
 246         if (!ret)
 247                 {
 248                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 249                 if (bn)
 250                         BN_free(bn);
 251                 return 0;
 252                 }
 253
 254         if ((unsigned int)BN_num_bytes(bn) > max_psk_len)
 255                 {
 256                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 257                         max_psk_len, BN_num_bytes(bn));
 258                 BN_free(bn);
 259                 return 0;
 260                 }
 261
 262         psk_len=BN_bn2bin(bn, psk);
 263         BN_free(bn);
 264         if (psk_len == 0)
 265                 goto out_err;
 266
 267         if (c_debug)
 268                 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
 269
 270         return psk_len;
 271  out_err:
 272         if (c_debug)
 273                 BIO_printf(bio_err, "Error in PSK client callback\n");
 274         return 0;
 275         }
 276 #endif
 277
 278 static void sc_usage(void)
 279         {
 280         BIO_printf(bio_err,"usage: s_client args\n");
 281         BIO_printf(bio_err,"\n");
 282         BIO_printf(bio_err," -host host     - use -connect instead\n");
 283         BIO_printf(bio_err," -port port     - use -connect instead\n");
 284         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 285
 286         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 287         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 288         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 289         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 290         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 291         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 292         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 293         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 294         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 295         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 296         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 297         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 298         BIO_printf(bio_err," -debug        - extra output\n");
 299 #ifdef WATT32
 300         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 301 #endif
 302         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 303         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 304         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 305 #ifdef FIONBIO
 306         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 307 #endif
 308         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 309         BIO_printf(bio_err," -quiet        - no s_client output\n");
 310         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 311         BIO_printf(bio_err," -no_ign_eof   - don't ignore input eof\n");
 312 #ifndef OPENSSL_NO_PSK
 313         BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
 314         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 315 #endif
 316         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 317         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 318         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 319         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 320         BIO_printf(bio_err," -mtu          - set the MTU\n");
 321         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 322         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 323         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 324         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 325         BIO_printf(bio_err,"                 command to see what is available\n");
 326         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 327         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 328         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 329         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
 330         BIO_printf(bio_err,"                 are supported.\n");
 331 #ifndef OPENSSL_NO_ENGINE
 332         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 333 #endif
 334         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 335         BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
 336         BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
 337 #ifndef OPENSSL_NO_TLSEXT
 338         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 339         BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
 340         BIO_printf(bio_err," -status           - request certificate status from server\n");
 341         BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
 342 #endif
 343         }
 344
 345 #ifndef OPENSSL_NO_TLSEXT
 346
 347 /* This is a context that we pass to callbacks */
 348 typedef struct tlsextctx_st {
 349    BIO * biodebug;
 350    int ack;
 351 } tlsextctx;
 352
 353
 354 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 355         {
 356         tlsextctx * p = (tlsextctx *) arg;
 357         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 358         if (SSL_get_servername_type(s) != -1)
 359                 p->ack = !SSL_session_reused(s) && hn != NULL;
 360         else
 361                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 362
 363         return SSL_TLSEXT_ERR_OK;
 364         }
 365 #endif
 366
 367 enum
 368 {
 369         PROTO_OFF       = 0,
 370         PROTO_SMTP,
 371         PROTO_POP3,
 372         PROTO_IMAP,
 373         PROTO_FTP,
 374         PROTO_XMPP
 375 };
 376
 377 int MAIN(int, char **);
 378
 379 int MAIN(int argc, char **argv)
 380         {
 381         int off=0;
 382         SSL *con=NULL;
 383         X509_STORE *store = NULL;
 384         int s,k,width,state=0;
 385         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 386         int cbuf_len,cbuf_off;
 387         int sbuf_len,sbuf_off;
 388         fd_set readfds,writefds;
 389         short port=PORT;
 390         int full_log=1;
 391         char *host=SSL_HOST_NAME;
 392         char *cert_file=NULL,*key_file=NULL;
 393         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 394         char *passarg = NULL, *pass = NULL;
 395         X509 *cert = NULL;
 396         EVP_PKEY *key = NULL;
 397         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 398         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 399         int crlf=0;
 400         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 401         SSL_CTX *ctx=NULL;
 402         int ret=1,in_init=1,i,nbio_test=0;
 403         int starttls_proto = PROTO_OFF;
 404         int prexit = 0, vflags = 0;
 405         const SSL_METHOD *meth=NULL;
 406         int socket_type=SOCK_STREAM;
 407         BIO *sbio;
 408         char *inrand=NULL;
 409         int mbuf_len=0;
 410 #ifndef OPENSSL_NO_ENGINE
 411         char *engine_id=NULL;
 412         char *ssl_client_engine_id=NULL;
 413         ENGINE *e=NULL, *ssl_client_engine=NULL;
 414 #endif
 415 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
 416         struct timeval tv;
 417 #if defined(OPENSSL_SYS_BEOS_R5)
 418         int stdin_set = 0;
 419 #endif
 420 #endif
 421
 422 #ifndef OPENSSL_NO_TLSEXT
 423         char *servername = NULL;
 424         tlsextctx tlsextcbp =
 425         {NULL,0};
 426 #endif
 427         char *sess_in = NULL;
 428         char *sess_out = NULL;
 429         struct sockaddr peer;
 430         int peerlen = sizeof(peer);
 431         int enable_timeouts = 0 ;
 432         long socket_mtu = 0;
 433
 434 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 435         meth=SSLv23_client_method();
 436 #elif !defined(OPENSSL_NO_SSL3)
 437         meth=SSLv3_client_method();
 438 #elif !defined(OPENSSL_NO_SSL2)
 439         meth=SSLv2_client_method();
 440 #endif
 441
 442         apps_startup();
 443         c_Pause=0;
 444         c_quiet=0;
 445         c_ign_eof=0;
 446         c_debug=0;
 447         c_msg=0;
 448         c_showcerts=0;
 449
 450         if (bio_err == NULL)
 451                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 452
 453         if (!load_config(bio_err, NULL))
 454                 goto end;
 455
 456         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 457                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 458                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 459                 {
 460                 BIO_printf(bio_err,"out of memory\n");
 461                 goto end;
 462                 }
 463
 464         verify_depth=0;
 465         verify_error=X509_V_OK;
 466 #ifdef FIONBIO
 467         c_nbio=0;
 468 #endif
 469
 470         argc--;
 471         argv++;
 472         while (argc >= 1)
 473                 {
 474                 if      (strcmp(*argv,"-host") == 0)
 475                         {
 476                         if (--argc < 1) goto bad;
 477                         host= *(++argv);
 478                         }
 479                 else if (strcmp(*argv,"-port") == 0)
 480                         {
 481                         if (--argc < 1) goto bad;
 482                         port=atoi(*(++argv));
 483                         if (port == 0) goto bad;
 484                         }
 485                 else if (strcmp(*argv,"-connect") == 0)
 486                         {
 487                         if (--argc < 1) goto bad;
 488                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 489                                 goto bad;
 490                         }
 491                 else if (strcmp(*argv,"-verify") == 0)
 492                         {
 493                         verify=SSL_VERIFY_PEER;
 494                         if (--argc < 1) goto bad;
 495                         verify_depth=atoi(*(++argv));
 496                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 497                         }
 498                 else if (strcmp(*argv,"-cert") == 0)
 499                         {
 500                         if (--argc < 1) goto bad;
 501                         cert_file= *(++argv);
 502                         }
 503                 else if (strcmp(*argv,"-sess_out") == 0)
 504                         {
 505                         if (--argc < 1) goto bad;
 506                         sess_out = *(++argv);
 507                         }
 508                 else if (strcmp(*argv,"-sess_in") == 0)
 509                         {
 510                         if (--argc < 1) goto bad;
 511                         sess_in = *(++argv);
 512                         }
 513                 else if (strcmp(*argv,"-certform") == 0)
 514                         {
 515                         if (--argc < 1) goto bad;
 516                         cert_format = str2fmt(*(++argv));
 517                         }
 518                 else if (strcmp(*argv,"-crl_check") == 0)
 519                         vflags |= X509_V_FLAG_CRL_CHECK;
 520                 else if (strcmp(*argv,"-crl_check_all") == 0)
 521                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 522                 else if (strcmp(*argv,"-verify_return_error") == 0)
 523                         verify_return_error = 1;
 524                 else if (strcmp(*argv,"-prexit") == 0)
 525                         prexit=1;
 526                 else if (strcmp(*argv,"-crlf") == 0)
 527                         crlf=1;
 528                 else if (strcmp(*argv,"-quiet") == 0)
 529                         {
 530                         c_quiet=1;
 531                         c_ign_eof=1;
 532                         }
 533                 else if (strcmp(*argv,"-ign_eof") == 0)
 534                         c_ign_eof=1;
 535                 else if (strcmp(*argv,"-no_ign_eof") == 0)
 536                         c_ign_eof=0;
 537                 else if (strcmp(*argv,"-pause") == 0)
 538                         c_Pause=1;
 539                 else if (strcmp(*argv,"-debug") == 0)
 540                         c_debug=1;
 541 #ifndef OPENSSL_NO_TLSEXT
 542                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 543                         c_tlsextdebug=1;
 544                 else if (strcmp(*argv,"-status") == 0)
 545                         c_status_req=1;
 546 #endif
 547 #ifdef WATT32
 548                 else if (strcmp(*argv,"-wdebug") == 0)
 549                         dbug_init();
 550 #endif
 551                 else if (strcmp(*argv,"-msg") == 0)
 552                         c_msg=1;
 553                 else if (strcmp(*argv,"-showcerts") == 0)
 554                         c_showcerts=1;
 555                 else if (strcmp(*argv,"-nbio_test") == 0)
 556                         nbio_test=1;
 557                 else if (strcmp(*argv,"-state") == 0)
 558                         state=1;
 559 #ifndef OPENSSL_NO_PSK
 560                 else if (strcmp(*argv,"-psk_identity") == 0)
 561                         {
 562                         if (--argc < 1) goto bad;
 563                         psk_identity=*(++argv);
 564                         }
 565                 else if (strcmp(*argv,"-psk") == 0)
 566                         {
 567                         size_t j;
 568
 569                         if (--argc < 1) goto bad;
 570                         psk_key=*(++argv);
 571                         for (j = 0; j < strlen(psk_key); j++)
 572                                 {
 573                                 if (isxdigit((int)psk_key[j]))
 574                                         continue;
 575                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
 576                                 goto bad;
 577                                 }
 578                         }
 579 #endif
 580 #ifndef OPENSSL_NO_SSL2
 581                 else if (strcmp(*argv,"-ssl2") == 0)
 582                         meth=SSLv2_client_method();
 583 #endif
 584 #ifndef OPENSSL_NO_SSL3
 585                 else if (strcmp(*argv,"-ssl3") == 0)
 586                         meth=SSLv3_client_method();
 587 #endif
 588 #ifndef OPENSSL_NO_TLS1
 589                 else if (strcmp(*argv,"-tls1") == 0)
 590                         meth=TLSv1_client_method();
 591 #endif
 592 #ifndef OPENSSL_NO_DTLS1
 593                 else if (strcmp(*argv,"-dtls1") == 0)
 594                         {
 595                         meth=DTLSv1_client_method();
 596                         socket_type=SOCK_DGRAM;
 597                         }
 598                 else if (strcmp(*argv,"-timeout") == 0)
 599                         enable_timeouts=1;
 600                 else if (strcmp(*argv,"-mtu") == 0)
 601                         {
 602                         if (--argc < 1) goto bad;
 603                         socket_mtu = atol(*(++argv));
 604                         }
 605 #endif
 606                 else if (strcmp(*argv,"-bugs") == 0)
 607                         bugs=1;
 608                 else if (strcmp(*argv,"-keyform") == 0)
 609                         {
 610                         if (--argc < 1) goto bad;
 611                         key_format = str2fmt(*(++argv));
 612                         }
 613                 else if (strcmp(*argv,"-pass") == 0)
 614                         {
 615                         if (--argc < 1) goto bad;
 616                         passarg = *(++argv);
 617                         }
 618                 else if (strcmp(*argv,"-key") == 0)
 619                         {
 620                         if (--argc < 1) goto bad;
 621                         key_file= *(++argv);
 622                         }
 623                 else if (strcmp(*argv,"-reconnect") == 0)
 624                         {
 625                         reconnect=5;
 626                         }
 627                 else if (strcmp(*argv,"-CApath") == 0)
 628                         {
 629                         if (--argc < 1) goto bad;
 630                         CApath= *(++argv);
 631                         }
 632                 else if (strcmp(*argv,"-CAfile") == 0)
 633                         {
 634                         if (--argc < 1) goto bad;
 635                         CAfile= *(++argv);
 636                         }
 637                 else if (strcmp(*argv,"-no_tls1") == 0)
 638                         off|=SSL_OP_NO_TLSv1;
 639                 else if (strcmp(*argv,"-no_ssl3") == 0)
 640                         off|=SSL_OP_NO_SSLv3;
 641                 else if (strcmp(*argv,"-no_ssl2") == 0)
 642                         off|=SSL_OP_NO_SSLv2;
 643                 else if (strcmp(*argv,"-no_comp") == 0)
 644                         { off|=SSL_OP_NO_COMPRESSION; }
 645 #ifndef OPENSSL_NO_TLSEXT
 646                 else if (strcmp(*argv,"-no_ticket") == 0)
 647                         { off|=SSL_OP_NO_TICKET; }
 648 #endif
 649                 else if (strcmp(*argv,"-serverpref") == 0)
 650                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 651                 else if (strcmp(*argv,"-cipher") == 0)
 652                         {
 653                         if (--argc < 1) goto bad;
 654                         cipher= *(++argv);
 655                         }
 656 #ifdef FIONBIO
 657                 else if (strcmp(*argv,"-nbio") == 0)
 658                         { c_nbio=1; }
 659 #endif
 660                 else if (strcmp(*argv,"-starttls") == 0)
 661                         {
 662                         if (--argc < 1) goto bad;
 663                         ++argv;
 664                         if (strcmp(*argv,"smtp") == 0)
 665                                 starttls_proto = PROTO_SMTP;
 666                         else if (strcmp(*argv,"pop3") == 0)
 667                                 starttls_proto = PROTO_POP3;
 668                         else if (strcmp(*argv,"imap") == 0)
 669                                 starttls_proto = PROTO_IMAP;
 670                         else if (strcmp(*argv,"ftp") == 0)
 671                                 starttls_proto = PROTO_FTP;
 672                         else if (strcmp(*argv, "xmpp") == 0)
 673                                 starttls_proto = PROTO_XMPP;
 674                         else
 675                                 goto bad;
 676                         }
 677 #ifndef OPENSSL_NO_ENGINE
 678                 else if (strcmp(*argv,"-engine") == 0)
 679                         {
 680                         if (--argc < 1) goto bad;
 681                         engine_id = *(++argv);
 682                         }
 683                 else if (strcmp(*argv,"-ssl_client_engine") == 0)
 684                         {
 685                         if (--argc < 1) goto bad;
 686                         ssl_client_engine_id = *(++argv);
 687                         }
 688 #endif
 689                 else if (strcmp(*argv,"-rand") == 0)
 690                         {
 691                         if (--argc < 1) goto bad;
 692                         inrand= *(++argv);
 693                         }
 694 #ifndef OPENSSL_NO_TLSEXT
 695                 else if (strcmp(*argv,"-servername") == 0)
 696                         {
 697                         if (--argc < 1) goto bad;
 698                         servername= *(++argv);
 699                         /* meth=TLSv1_client_method(); */
 700                         }
 701 #endif
 702                 else
 703                         {
 704                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 705                         badop=1;
 706                         break;
 707                         }
 708                 argc--;
 709                 argv++;
 710                 }
 711         if (badop)
 712                 {
 713 bad:
 714                 sc_usage();
 715                 goto end;
 716                 }
 717
 718         OpenSSL_add_ssl_algorithms();
 719         SSL_load_error_strings();
 720
 721 #ifndef OPENSSL_NO_ENGINE
 722         e = setup_engine(bio_err, engine_id, 1);
 723         if (ssl_client_engine_id)
 724                 {
 725                 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
 726                 if (!ssl_client_engine)
 727                         {
 728                         BIO_printf(bio_err,
 729                                         "Error getting client auth engine\n");
 730                         goto end;
 731                         }
 732                 }
 733
 734 #endif
 735         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
 736                 {
 737                 BIO_printf(bio_err, "Error getting password\n");
 738                 goto end;
 739                 }
 740
 741         if (key_file == NULL)
 742                 key_file = cert_file;
 743
 744
 745         if (key_file)
 746
 747                 {
 748
 749                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
 750                                "client certificate private key file");
 751                 if (!key)
 752                         {
 753                         ERR_print_errors(bio_err);
 754                         goto end;
 755                         }
 756
 757                 }
 758
 759         if (cert_file)
 760
 761                 {
 762                 cert = load_cert(bio_err,cert_file,cert_format,
 763                                 NULL, e, "client certificate file");
 764
 765                 if (!cert)
 766                         {
 767                         ERR_print_errors(bio_err);
 768                         goto end;
 769                         }
 770                 }
 771
 772         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 773                 && !RAND_status())
 774                 {
 775                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 776                 }
 777         if (inrand != NULL)
 778                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 779                         app_RAND_load_files(inrand));
 780
 781         if (bio_c_out == NULL)
 782                 {
 783                 if (c_quiet && !c_debug && !c_msg)
 784                         {
 785                         bio_c_out=BIO_new(BIO_s_null());
 786                         }
 787                 else
 788                         {
 789                         if (bio_c_out == NULL)
 790                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 791                         }
 792                 }
 793
 794         ctx=SSL_CTX_new(meth);
 795         if (ctx == NULL)
 796                 {
 797                 ERR_print_errors(bio_err);
 798                 goto end;
 799                 }
 800
 801 #ifndef OPENSSL_NO_ENGINE
 802         if (ssl_client_engine)
 803                 {
 804                 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine))
 805                         {
 806                         BIO_puts(bio_err, "Error setting client auth engine\n");
 807                         ERR_print_errors(bio_err);
 808                         ENGINE_free(ssl_client_engine);
 809                         goto end;
 810                         }
 811                 ENGINE_free(ssl_client_engine);
 812                 }
 813 #endif
 814
 815 #ifndef OPENSSL_NO_PSK
 816         if (psk_key != NULL)
 817                 {
 818                 if (c_debug)
 819                         BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
 820                 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
 821                 }
 822 #endif
 823         if (bugs)
 824                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 825         else
 826                 SSL_CTX_set_options(ctx,off);
 827         /* DTLS: partial reads end up discarding unread UDP bytes :-(
 828          * Setting read ahead solves this problem.
 829          */
 830         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
 831
 832         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 833         if (cipher != NULL)
 834                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 835                 BIO_printf(bio_err,"error setting cipher list\n");
 836                 ERR_print_errors(bio_err);
 837                 goto end;
 838         }
 839 #if 0
 840         else
 841                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 842 #endif
 843
 844         SSL_CTX_set_verify(ctx,verify,verify_callback);
 845         if (!set_cert_key_stuff(ctx,cert,key))
 846                 goto end;
 847
 848         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 849                 (!SSL_CTX_set_default_verify_paths(ctx)))
 850                 {
 851                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 852                 ERR_print_errors(bio_err);
 853                 /* goto end; */
 854                 }
 855
 856         store = SSL_CTX_get_cert_store(ctx);
 857         X509_STORE_set_flags(store, vflags);
 858 #ifndef OPENSSL_NO_TLSEXT
 859         if (servername != NULL)
 860                 {
 861                 tlsextcbp.biodebug = bio_err;
 862                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
 863                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
 864                 }
 865 #endif
 866
 867         con=SSL_new(ctx);
 868         if (sess_in)
 869                 {
 870                 SSL_SESSION *sess;
 871                 BIO *stmp = BIO_new_file(sess_in, "r");
 872                 if (!stmp)
 873                         {
 874                         BIO_printf(bio_err, "Can't open session file %s\n",
 875                                                 sess_in);
 876                         ERR_print_errors(bio_err);
 877                         goto end;
 878                         }
 879                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
 880                 BIO_free(stmp);
 881                 if (!sess)
 882                         {
 883                         BIO_printf(bio_err, "Can't open session file %s\n",
 884                                                 sess_in);
 885                         ERR_print_errors(bio_err);
 886                         goto end;
 887                         }
 888                 SSL_set_session(con, sess);
 889                 SSL_SESSION_free(sess);
 890                 }
 891 #ifndef OPENSSL_NO_TLSEXT
 892         if (servername != NULL)
 893                 {
 894                 if (!SSL_set_tlsext_host_name(con,servername))
 895                         {
 896                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
 897                         ERR_print_errors(bio_err);
 898                         goto end;
 899                         }
 900                 }
 901 #endif
 902 #ifndef OPENSSL_NO_KRB5
 903         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 904                 {
 905                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 906                 }
 907 #endif  /* OPENSSL_NO_KRB5  */
 908 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 909 #if 0
 910 #ifdef TLSEXT_TYPE_opaque_prf_input
 911         SSL_set_tlsext_opaque_prf_input(con, "Test client", 11);
 912 #endif
 913 #endif
 914
 915 re_start:
 916
 917         if (init_client(&s,host,port,socket_type) == 0)
 918                 {
 919                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 920                 SHUTDOWN(s);
 921                 goto end;
 922                 }
 923         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 924
 925 #ifdef FIONBIO
 926         if (c_nbio)
 927                 {
 928                 unsigned long l=1;
 929                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 930                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 931                         {
 932                         ERR_print_errors(bio_err);
 933                         goto end;
 934                         }
 935                 }
 936 #endif
 937         if (c_Pause & 0x01) con->debug=1;
 938
 939         if ( SSL_version(con) == DTLS1_VERSION)
 940                 {
 941                 struct timeval timeout;
 942
 943                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
 944                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
 945                         {
 946                         BIO_printf(bio_err, "getsockname:errno=%d\n",
 947                                 get_last_socket_error());
 948                         SHUTDOWN(s);
 949                         goto end;
 950                         }
 951
 952                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
 953
 954                 if (enable_timeouts)
 955                         {
 956                         timeout.tv_sec = 0;
 957                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
 958                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
 959
 960                         timeout.tv_sec = 0;
 961                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
 962                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
 963                         }
 964
 965                 if (socket_mtu > 0)
 966                         {
 967                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
 968                         SSL_set_mtu(con, socket_mtu);
 969                         }
 970                 else
 971                         /* want to do MTU discovery */
 972                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
 973                 }
 974         else
 975                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
 976
 977
 978
 979         if (nbio_test)
 980                 {
 981                 BIO *test;
 982
 983                 test=BIO_new(BIO_f_nbio_test());
 984                 sbio=BIO_push(test,sbio);
 985                 }
 986
 987         if (c_debug)
 988                 {
 989                 con->debug=1;
 990                 BIO_set_callback(sbio,bio_dump_callback);
 991                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
 992                 }
 993         if (c_msg)
 994                 {
 995                 SSL_set_msg_callback(con, msg_cb);
 996                 SSL_set_msg_callback_arg(con, bio_c_out);
 997                 }
 998 #ifndef OPENSSL_NO_TLSEXT
 999         if (c_tlsextdebug)
1000                 {
1001                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1002                 SSL_set_tlsext_debug_arg(con, bio_c_out);
1003                 }
1004         if (c_status_req)
1005                 {
1006                 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
1007                 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
1008                 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
1009 #if 0
1010 {
1011 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
1012 OCSP_RESPID *id = OCSP_RESPID_new();
1013 id->value.byKey = ASN1_OCTET_STRING_new();
1014 id->type = V_OCSP_RESPID_KEY;
1015 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
1016 sk_OCSP_RESPID_push(ids, id);
1017 SSL_set_tlsext_status_ids(con, ids);
1018 }
1019 #endif
1020                 }
1021 #endif
1022
1023         SSL_set_bio(con,sbio,sbio);
1024         SSL_set_connect_state(con);
1025
1026         /* ok, lets connect */
1027         width=SSL_get_fd(con)+1;
1028
1029         read_tty=1;
1030         write_tty=0;
1031         tty_on=0;
1032         read_ssl=1;
1033         write_ssl=1;
1034
1035         cbuf_len=0;
1036         cbuf_off=0;
1037         sbuf_len=0;
1038         sbuf_off=0;
1039
1040         /* This is an ugly hack that does a lot of assumptions */
1041         /* We do have to handle multi-line responses which may come
1042            in a single packet or not. We therefore have to use
1043            BIO_gets() which does need a buffering BIO. So during
1044            the initial chitchat we do push a buffering BIO into the
1045            chain that is removed again later on to not disturb the
1046            rest of the s_client operation. */
1047         if (starttls_proto == PROTO_SMTP)
1048                 {
1049                 int foundit=0;
1050                 BIO *fbio = BIO_new(BIO_f_buffer());
1051                 BIO_push(fbio, sbio);
1052                 /* wait for multi-line response to end from SMTP */
1053                 do
1054                         {
1055                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1056                         }
1057                 while (mbuf_len>3 && mbuf[3]=='-');
1058                 /* STARTTLS command requires EHLO... */
1059                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
1060                 (void)BIO_flush(fbio);
1061                 /* wait for multi-line response to end EHLO SMTP response */
1062                 do
1063                         {
1064                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1065                         if (strstr(mbuf,"STARTTLS"))
1066                                 foundit=1;
1067                         }
1068                 while (mbuf_len>3 && mbuf[3]=='-');
1069                 (void)BIO_flush(fbio);
1070                 BIO_pop(fbio);
1071                 BIO_free(fbio);
1072                 if (!foundit)
1073                         BIO_printf(bio_err,
1074                                    "didn't found starttls in server response,"
1075                                    " try anyway...\n");
1076                 BIO_printf(sbio,"STARTTLS\r\n");
1077                 BIO_read(sbio,sbuf,BUFSIZZ);
1078                 }
1079         else if (starttls_proto == PROTO_POP3)
1080                 {
1081                 BIO_read(sbio,mbuf,BUFSIZZ);
1082                 BIO_printf(sbio,"STLS\r\n");
1083                 BIO_read(sbio,sbuf,BUFSIZZ);
1084                 }
1085         else if (starttls_proto == PROTO_IMAP)
1086                 {
1087                 int foundit=0;
1088                 BIO *fbio = BIO_new(BIO_f_buffer());
1089                 BIO_push(fbio, sbio);
1090                 BIO_gets(fbio,mbuf,BUFSIZZ);
1091                 /* STARTTLS command requires CAPABILITY... */
1092                 BIO_printf(fbio,". CAPABILITY\r\n");
1093                 (void)BIO_flush(fbio);
1094                 /* wait for multi-line CAPABILITY response */
1095                 do
1096                         {
1097                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1098                         if (strstr(mbuf,"STARTTLS"))
1099                                 foundit=1;
1100                         }
1101                 while (mbuf_len>3 && mbuf[0]!='.');
1102                 (void)BIO_flush(fbio);
1103                 BIO_pop(fbio);
1104                 BIO_free(fbio);
1105                 if (!foundit)
1106                         BIO_printf(bio_err,
1107                                    "didn't found STARTTLS in server response,"
1108                                    " try anyway...\n");
1109                 BIO_printf(sbio,". STARTTLS\r\n");
1110                 BIO_read(sbio,sbuf,BUFSIZZ);
1111                 }
1112         else if (starttls_proto == PROTO_FTP)
1113                 {
1114                 BIO *fbio = BIO_new(BIO_f_buffer());
1115                 BIO_push(fbio, sbio);
1116                 /* wait for multi-line response to end from FTP */
1117                 do
1118                         {
1119                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1120                         }
1121                 while (mbuf_len>3 && mbuf[3]=='-');
1122                 (void)BIO_flush(fbio);
1123                 BIO_pop(fbio);
1124                 BIO_free(fbio);
1125                 BIO_printf(sbio,"AUTH TLS\r\n");
1126                 BIO_read(sbio,sbuf,BUFSIZZ);
1127                 }
1128         if (starttls_proto == PROTO_XMPP)
1129                 {
1130                 int seen = 0;
1131                 BIO_printf(sbio,"<stream:stream "
1132                     "xmlns:stream='http://etherx.jabber.org/streams' "
1133                     "xmlns='jabber:client' to='%s' version='1.0'>", host);
1134                 seen = BIO_read(sbio,mbuf,BUFSIZZ);
1135                 mbuf[seen] = 0;
1136                 while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'"))
1137                         {
1138                         if (strstr(mbuf, "/stream:features>"))
1139                                 goto shut;
1140                         seen = BIO_read(sbio,mbuf,BUFSIZZ);
1141                         mbuf[seen] = 0;
1142                         }
1143                 BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
1144                 seen = BIO_read(sbio,sbuf,BUFSIZZ);
1145                 sbuf[seen] = 0;
1146                 if (!strstr(sbuf, "<proceed"))
1147                         goto shut;
1148                 mbuf[0] = 0;
1149                 }
1150
1151         for (;;)
1152                 {
1153                 FD_ZERO(&readfds);
1154                 FD_ZERO(&writefds);
1155
1156                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1157                         {
1158                         in_init=1;
1159                         tty_on=0;
1160                         }
1161                 else
1162                         {
1163                         tty_on=1;
1164                         if (in_init)
1165                                 {
1166                                 in_init=0;
1167 #if 0 /* This test doesn't really work as intended (needs to be fixed) */
1168 #ifndef OPENSSL_NO_TLSEXT
1169                                 if (servername != NULL && !SSL_session_reused(con))
1170                                         {
1171                                         BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
1172                                         }
1173 #endif
1174 #endif
1175                                 if (sess_out)
1176                                         {
1177                                         BIO *stmp = BIO_new_file(sess_out, "w");
1178                                         if (stmp)
1179                                                 {
1180                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1181                                                 BIO_free(stmp);
1182                                                 }
1183                                         else
1184                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1185                                         }
1186                                 print_stuff(bio_c_out,con,full_log);
1187                                 if (full_log > 0) full_log--;
1188
1189                                 if (starttls_proto)
1190                                         {
1191                                         BIO_printf(bio_err,"%s",mbuf);
1192                                         /* We don't need to know any more */
1193                                         starttls_proto = PROTO_OFF;
1194                                         }
1195
1196                                 if (reconnect)
1197                                         {
1198                                         reconnect--;
1199                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1200                                         SSL_shutdown(con);
1201                                         SSL_set_connect_state(con);
1202                                         SHUTDOWN(SSL_get_fd(con));
1203                                         goto re_start;
1204                                         }
1205                                 }
1206                         }
1207
1208                 ssl_pending = read_ssl && SSL_pending(con);
1209
1210                 if (!ssl_pending)
1211                         {
1212 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
1213                         if (tty_on)
1214                                 {
1215                                 if (read_tty)  openssl_fdset(fileno(stdin),&readfds);
1216                                 if (write_tty) openssl_fdset(fileno(stdout),&writefds);
1217                                 }
1218                         if (read_ssl)
1219                                 openssl_fdset(SSL_get_fd(con),&readfds);
1220                         if (write_ssl)
1221                                 openssl_fdset(SSL_get_fd(con),&writefds);
1222 #else
1223                         if(!tty_on || !write_tty) {
1224                                 if (read_ssl)
1225                                         openssl_fdset(SSL_get_fd(con),&readfds);
1226                                 if (write_ssl)
1227                                         openssl_fdset(SSL_get_fd(con),&writefds);
1228                         }
1229 #endif
1230 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1231                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1232
1233                         /* Note: under VMS with SOCKETSHR the second parameter
1234                          * is currently of type (int *) whereas under other
1235                          * systems it is (void *) if you don't have a cast it
1236                          * will choke the compiler: if you do have a cast then
1237                          * you can either go for (int *) or (void *).
1238                          */
1239 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1240                         /* Under Windows/DOS we make the assumption that we can
1241                          * always write to the tty: therefore if we need to
1242                          * write to the tty we just fall through. Otherwise
1243                          * we timeout the select every second and see if there
1244                          * are any keypresses. Note: this is a hack, in a proper
1245                          * Windows application we wouldn't do this.
1246                          */
1247                         i=0;
1248                         if(!write_tty) {
1249                                 if(read_tty) {
1250                                         tv.tv_sec = 1;
1251                                         tv.tv_usec = 0;
1252                                         i=select(width,(void *)&readfds,(void *)&writefds,
1253                                                  NULL,&tv);
1254 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1255                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1256 #else
1257                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1258 #endif
1259                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1260                                          NULL,NULL);
1261                         }
1262 #elif defined(OPENSSL_SYS_NETWARE)
1263                         if(!write_tty) {
1264                                 if(read_tty) {
1265                                         tv.tv_sec = 1;
1266                                         tv.tv_usec = 0;
1267                                         i=select(width,(void *)&readfds,(void *)&writefds,
1268                                                 NULL,&tv);
1269                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1270                                         NULL,NULL);
1271                         }
1272 #elif defined(OPENSSL_SYS_BEOS_R5)
1273                         /* Under BeOS-R5 the situation is similar to DOS */
1274                         i=0;
1275                         stdin_set = 0;
1276                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1277                         if(!write_tty) {
1278                                 if(read_tty) {
1279                                         tv.tv_sec = 1;
1280                                         tv.tv_usec = 0;
1281                                         i=select(width,(void *)&readfds,(void *)&writefds,
1282                                                  NULL,&tv);
1283                                         if (read(fileno(stdin), sbuf, 0) >= 0)
1284                                                 stdin_set = 1;
1285                                         if (!i && (stdin_set != 1 || !read_tty))
1286                                                 continue;
1287                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1288                                          NULL,NULL);
1289                         }
1290                         (void)fcntl(fileno(stdin), F_SETFL, 0);
1291 #else
1292                         i=select(width,(void *)&readfds,(void *)&writefds,
1293                                  NULL,NULL);
1294 #endif
1295                         if ( i < 0)
1296                                 {
1297                                 BIO_printf(bio_err,"bad select %d\n",
1298                                 get_last_socket_error());
1299                                 goto shut;
1300                                 /* goto end; */
1301                                 }
1302                         }
1303
1304                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1305                         {
1306                         k=SSL_write(con,&(cbuf[cbuf_off]),
1307                                 (unsigned int)cbuf_len);
1308                         switch (SSL_get_error(con,k))
1309                                 {
1310                         case SSL_ERROR_NONE:
1311                                 cbuf_off+=k;
1312                                 cbuf_len-=k;
1313                                 if (k <= 0) goto end;
1314                                 /* we have done a  write(con,NULL,0); */
1315                                 if (cbuf_len <= 0)
1316                                         {
1317                                         read_tty=1;
1318                                         write_ssl=0;
1319                                         }
1320                                 else /* if (cbuf_len > 0) */
1321                                         {
1322                                         read_tty=0;
1323                                         write_ssl=1;
1324                                         }
1325                                 break;
1326                         case SSL_ERROR_WANT_WRITE:
1327                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1328                                 write_ssl=1;
1329                                 read_tty=0;
1330                                 break;
1331                         case SSL_ERROR_WANT_READ:
1332                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1333                                 write_tty=0;
1334                                 read_ssl=1;
1335                                 write_ssl=0;
1336                                 break;
1337                         case SSL_ERROR_WANT_X509_LOOKUP:
1338                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1339                                 break;
1340                         case SSL_ERROR_ZERO_RETURN:
1341                                 if (cbuf_len != 0)
1342                                         {
1343                                         BIO_printf(bio_c_out,"shutdown\n");
1344                                         ret = 0;
1345                                         goto shut;
1346                                         }
1347                                 else
1348                                         {
1349                                         read_tty=1;
1350                                         write_ssl=0;
1351                                         break;
1352                                         }
1353
1354                         case SSL_ERROR_SYSCALL:
1355                                 if ((k != 0) || (cbuf_len != 0))
1356                                         {
1357                                         BIO_printf(bio_err,"write:errno=%d\n",
1358                                                 get_last_socket_error());
1359                                         goto shut;
1360                                         }
1361                                 else
1362                                         {
1363                                         read_tty=1;
1364                                         write_ssl=0;
1365                                         }
1366                                 break;
1367                         case SSL_ERROR_SSL:
1368                                 ERR_print_errors(bio_err);
1369                                 goto shut;
1370                                 }
1371                         }
1372 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1373                 /* Assume Windows/DOS/BeOS can always write */
1374                 else if (!ssl_pending && write_tty)
1375 #else
1376                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1377 #endif
1378                         {
1379 #ifdef CHARSET_EBCDIC
1380                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1381 #endif
1382                         i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
1383
1384                         if (i <= 0)
1385                                 {
1386                                 BIO_printf(bio_c_out,"DONE\n");
1387                                 ret = 0;
1388                                 goto shut;
1389                                 /* goto end; */
1390                                 }
1391
1392                         sbuf_len-=i;;
1393                         sbuf_off+=i;
1394                         if (sbuf_len <= 0)
1395                                 {
1396                                 read_ssl=1;
1397                                 write_tty=0;
1398                                 }
1399                         }
1400                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1401                         {
1402 #ifdef RENEG
1403 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1404 #endif
1405 #if 1
1406                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1407 #else
1408 /* Demo for pending and peek :-) */
1409                         k=SSL_read(con,sbuf,16);
1410 { char zbuf[10240];
1411 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1412 }
1413 #endif
1414
1415                         switch (SSL_get_error(con,k))
1416                                 {
1417                         case SSL_ERROR_NONE:
1418                                 if (k <= 0)
1419                                         goto end;
1420                                 sbuf_off=0;
1421                                 sbuf_len=k;
1422
1423                                 read_ssl=0;
1424                                 write_tty=1;
1425                                 break;
1426                         case SSL_ERROR_WANT_WRITE:
1427                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1428                                 write_ssl=1;
1429                                 read_tty=0;
1430                                 break;
1431                         case SSL_ERROR_WANT_READ:
1432                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1433                                 write_tty=0;
1434                                 read_ssl=1;
1435                                 if ((read_tty == 0) && (write_ssl == 0))
1436                                         write_ssl=1;
1437                                 break;
1438                         case SSL_ERROR_WANT_X509_LOOKUP:
1439                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1440                                 break;
1441                         case SSL_ERROR_SYSCALL:
1442                                 ret=get_last_socket_error();
1443                                 BIO_printf(bio_err,"read:errno=%d\n",ret);
1444                                 goto shut;
1445                         case SSL_ERROR_ZERO_RETURN:
1446                                 BIO_printf(bio_c_out,"closed\n");
1447                                 ret=0;
1448                                 goto shut;
1449                         case SSL_ERROR_SSL:
1450                                 ERR_print_errors(bio_err);
1451                                 goto shut;
1452                                 /* break; */
1453                                 }
1454                         }
1455
1456 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1457 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1458                 else if (_kbhit())
1459 #else
1460                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1461 #endif
1462 #elif defined (OPENSSL_SYS_NETWARE)
1463                 else if (_kbhit())
1464 #elif defined(OPENSSL_SYS_BEOS_R5)
1465                 else if (stdin_set)
1466 #else
1467                 else if (FD_ISSET(fileno(stdin),&readfds))
1468 #endif
1469                         {
1470                         if (crlf)
1471                                 {
1472                                 int j, lf_num;
1473
1474                                 i=raw_read_stdin(cbuf,BUFSIZZ/2);
1475                                 lf_num = 0;
1476                                 /* both loops are skipped when i <= 0 */
1477                                 for (j = 0; j < i; j++)
1478                                         if (cbuf[j] == '\n')
1479                                                 lf_num++;
1480                                 for (j = i-1; j >= 0; j--)
1481                                         {
1482                                         cbuf[j+lf_num] = cbuf[j];
1483                                         if (cbuf[j] == '\n')
1484                                                 {
1485                                                 lf_num--;
1486                                                 i++;
1487                                                 cbuf[j+lf_num] = '\r';
1488                                                 }
1489                                         }
1490                                 assert(lf_num == 0);
1491                                 }
1492                         else
1493                                 i=raw_read_stdin(cbuf,BUFSIZZ);
1494
1495                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1496                                 {
1497                                 BIO_printf(bio_err,"DONE\n");
1498                                 ret=0;
1499                                 goto shut;
1500                                 }
1501
1502                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1503                                 {
1504                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1505                                 SSL_renegotiate(con);
1506                                 cbuf_len=0;
1507                                 }
1508                         else
1509                                 {
1510                                 cbuf_len=i;
1511                                 cbuf_off=0;
1512 #ifdef CHARSET_EBCDIC
1513                                 ebcdic2ascii(cbuf, cbuf, i);
1514 #endif
1515                                 }
1516
1517                         write_ssl=1;
1518                         read_tty=0;
1519                         }
1520                 }
1521
1522         ret=0;
1523 shut:
1524         if (in_init)
1525                 print_stuff(bio_c_out,con,full_log);
1526         SSL_shutdown(con);
1527         SHUTDOWN(SSL_get_fd(con));
1528 end:
1529         if (con != NULL)
1530                 {
1531                 if (prexit != 0)
1532                         print_stuff(bio_c_out,con,1);
1533                 SSL_free(con);
1534                 }
1535         if (ctx != NULL) SSL_CTX_free(ctx);
1536         if (cert)
1537                 X509_free(cert);
1538         if (key)
1539                 EVP_PKEY_free(key);
1540         if (pass)
1541                 OPENSSL_free(pass);
1542         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1543         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1544         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1545         if (bio_c_out != NULL)
1546                 {
1547                 BIO_free(bio_c_out);
1548                 bio_c_out=NULL;
1549                 }
1550         apps_shutdown();
1551         OPENSSL_EXIT(ret);
1552         }
1553
1554
1555 static void print_stuff(BIO *bio, SSL *s, int full)
1556         {
1557         X509 *peer=NULL;
1558         char *p;
1559         static const char *space="                ";
1560         char buf[BUFSIZ];
1561         STACK_OF(X509) *sk;
1562         STACK_OF(X509_NAME) *sk2;
1563         const SSL_CIPHER *c;
1564         X509_NAME *xn;
1565         int j,i;
1566 #ifndef OPENSSL_NO_COMP
1567         const COMP_METHOD *comp, *expansion;
1568 #endif
1569
1570         if (full)
1571                 {
1572                 int got_a_chain = 0;
1573
1574                 sk=SSL_get_peer_cert_chain(s);
1575                 if (sk != NULL)
1576                         {
1577                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1578
1579                         BIO_printf(bio,"---\nCertificate chain\n");
1580                         for (i=0; i<sk_X509_num(sk); i++)
1581                                 {
1582                                 X509_NAME_oneline(X509_get_subject_name(
1583                                         sk_X509_value(sk,i)),buf,sizeof buf);
1584                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1585                                 X509_NAME_oneline(X509_get_issuer_name(
1586                                         sk_X509_value(sk,i)),buf,sizeof buf);
1587                                 BIO_printf(bio,"   i:%s\n",buf);
1588                                 if (c_showcerts)
1589                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1590                                 }
1591                         }
1592
1593                 BIO_printf(bio,"---\n");
1594                 peer=SSL_get_peer_certificate(s);
1595                 if (peer != NULL)
1596                         {
1597                         BIO_printf(bio,"Server certificate\n");
1598                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1599                                 PEM_write_bio_X509(bio,peer);
1600                         X509_NAME_oneline(X509_get_subject_name(peer),
1601                                 buf,sizeof buf);
1602                         BIO_printf(bio,"subject=%s\n",buf);
1603                         X509_NAME_oneline(X509_get_issuer_name(peer),
1604                                 buf,sizeof buf);
1605                         BIO_printf(bio,"issuer=%s\n",buf);
1606                         }
1607                 else
1608                         BIO_printf(bio,"no peer certificate available\n");
1609
1610                 sk2=SSL_get_client_CA_list(s);
1611                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1612                         {
1613                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1614                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1615                                 {
1616                                 xn=sk_X509_NAME_value(sk2,i);
1617                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1618                                 BIO_write(bio,buf,strlen(buf));
1619                                 BIO_write(bio,"\n",1);
1620                                 }
1621                         }
1622                 else
1623                         {
1624                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1625                         }
1626                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1627                 if (p != NULL)
1628                         {
1629                         /* This works only for SSL 2.  In later protocol
1630                          * versions, the client does not know what other
1631                          * ciphers (in addition to the one to be used
1632                          * in the current connection) the server supports. */
1633
1634                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1635                         j=i=0;
1636                         while (*p)
1637                                 {
1638                                 if (*p == ':')
1639                                         {
1640                                         BIO_write(bio,space,15-j%25);
1641                                         i++;
1642                                         j=0;
1643                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1644                                         }
1645                                 else
1646                                         {
1647                                         BIO_write(bio,p,1);
1648                                         j++;
1649                                         }
1650                                 p++;
1651                                 }
1652                         BIO_write(bio,"\n",1);
1653                         }
1654
1655                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1656                         BIO_number_read(SSL_get_rbio(s)),
1657                         BIO_number_written(SSL_get_wbio(s)));
1658                 }
1659         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1660         c=SSL_get_current_cipher(s);
1661         BIO_printf(bio,"%s, Cipher is %s\n",
1662                 SSL_CIPHER_get_version(c),
1663                 SSL_CIPHER_get_name(c));
1664         if (peer != NULL) {
1665                 EVP_PKEY *pktmp;
1666                 pktmp = X509_get_pubkey(peer);
1667                 BIO_printf(bio,"Server public key is %d bit\n",
1668                                                          EVP_PKEY_bits(pktmp));
1669                 EVP_PKEY_free(pktmp);
1670         }
1671 #ifndef OPENSSL_NO_COMP
1672         comp=SSL_get_current_compression(s);
1673         expansion=SSL_get_current_expansion(s);
1674         BIO_printf(bio,"Compression: %s\n",
1675                 comp ? SSL_COMP_get_name(comp) : "NONE");
1676         BIO_printf(bio,"Expansion: %s\n",
1677                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1678 #endif
1679         SSL_SESSION_print(bio,SSL_get_session(s));
1680         BIO_printf(bio,"---\n");
1681         if (peer != NULL)
1682                 X509_free(peer);
1683         /* flush, or debugging output gets mixed with http response */
1684         (void)BIO_flush(bio);
1685         }
1686
1687 #ifndef OPENSSL_NO_TLSEXT
1688
1689 static int ocsp_resp_cb(SSL *s, void *arg)
1690         {
1691         const unsigned char *p;
1692         int len;
1693         OCSP_RESPONSE *rsp;
1694         len = SSL_get_tlsext_status_ocsp_resp(s, &p);
1695         BIO_puts(arg, "OCSP response: ");
1696         if (!p)
1697                 {
1698                 BIO_puts(arg, "no response sent\n");
1699                 return 1;
1700                 }
1701         rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
1702         if (!rsp)
1703                 {
1704                 BIO_puts(arg, "response parse error\n");
1705                 BIO_dump_indent(arg, (char *)p, len, 4);
1706                 return 0;
1707                 }
1708         BIO_puts(arg, "\n======================================\n");
1709         OCSP_RESPONSE_print(arg, rsp, 0);
1710         BIO_puts(arg, "======================================\n");
1711         OCSP_RESPONSE_free(rsp);
1712         return 1;
1713         }
1714
1715 #endif