apps/s_client.c

   1 /* apps/s_client.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111 /* ====================================================================
 112  * Copyright 2005 Nokia. All rights reserved.
 113  *
 114  * The portions of the attached software ("Contribution") is developed by
 115  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
 116  * license.
 117  *
 118  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
 119  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
 120  * support (see RFC 4279) to OpenSSL.
 121  *
 122  * No patent licenses or other rights except those expressly stated in
 123  * the OpenSSL open source license shall be deemed granted or received
 124  * expressly, by implication, estoppel, or otherwise.
 125  *
 126  * No assurances are provided by Nokia that the Contribution does not
 127  * infringe the patent or other intellectual property rights of any third
 128  * party or that the license provides you with all the necessary rights
 129  * to make use of the Contribution.
 130  *
 131  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
 132  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
 133  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
 134  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
 135  * OTHERWISE.
 136  */
 137
 138 #include <assert.h>
 139 #include <ctype.h>
 140 #include <stdio.h>
 141 #include <stdlib.h>
 142 #include <string.h>
 143 #include <openssl/e_os2.h>
 144 #ifdef OPENSSL_NO_STDIO
 145 #define APPS_WIN16
 146 #endif
 147
 148 /* With IPv6, it looks like Digital has mixed up the proper order of
 149    recursive header file inclusion, resulting in the compiler complaining
 150    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 151    is needed to have fileno() declared correctly...  So let's define u_int */
 152 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 153 #define __U_INT
 154 typedef unsigned int u_int;
 155 #endif
 156
 157 #define USE_SOCKETS
 158 #include "apps.h"
 159 #include <openssl/x509.h>
 160 #include <openssl/ssl.h>
 161 #include <openssl/err.h>
 162 #include <openssl/pem.h>
 163 #include <openssl/rand.h>
 164 #include "s_apps.h"
 165 #include "timeouts.h"
 166
 167 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 168 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 169 #undef FIONBIO
 170 #endif
 171
 172 #if defined(OPENSSL_SYS_BEOS_R5)
 173 #include <fcntl.h>
 174 #endif
 175
 176 #undef PROG
 177 #define PROG    s_client_main
 178
 179 /*#define SSL_HOST_NAME "www.netscape.com" */
 180 /*#define SSL_HOST_NAME "193.118.187.102" */
 181 #define SSL_HOST_NAME   "localhost"
 182
 183 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 184
 185 #undef BUFSIZZ
 186 #define BUFSIZZ 1024*8
 187
 188 extern int verify_depth;
 189 extern int verify_error;
 190 extern int verify_return_error;
 191
 192 #ifdef FIONBIO
 193 static int c_nbio=0;
 194 #endif
 195 static int c_Pause=0;
 196 static int c_debug=0;
 197 #ifndef OPENSSL_NO_TLSEXT
 198 static int c_tlsextdebug=0;
 199 #endif
 200 static int c_msg=0;
 201 static int c_showcerts=0;
 202
 203 static void sc_usage(void);
 204 static void print_stuff(BIO *berr,SSL *con,int full);
 205 static BIO *bio_c_out=NULL;
 206 static int c_quiet=0;
 207 static int c_ign_eof=0;
 208
 209 #ifndef OPENSSL_NO_PSK
 210 /* Default PSK identity and key */
 211 static char *psk_identity="Client_identity";
 212 static char *psk_key=NULL; /* by default PSK is not used */
 213
 214 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
 215         unsigned int max_identity_len, unsigned char *psk,
 216         unsigned int max_psk_len)
 217         {
 218         unsigned int psk_len = 0;
 219         int ret;
 220         BIGNUM *bn=NULL;
 221
 222         if (c_debug)
 223                 BIO_printf(bio_c_out, "psk_client_cb\n");
 224         if (!hint)
 225                 {
 226                 /* no ServerKeyExchange message*/
 227                 if (c_debug)
 228                         BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n");
 229                 }
 230         else if (c_debug)
 231                 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
 232
 233         /* lookup PSK identity and PSK key based on the given identity hint here */
 234         ret = BIO_snprintf(identity, max_identity_len, psk_identity);
 235         if (ret < 0 || (unsigned int)ret > max_identity_len)
 236                 goto out_err;
 237         if (c_debug)
 238                 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret);
 239         ret=BN_hex2bn(&bn, psk_key);
 240         if (!ret)
 241                 {
 242                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 243                 if (bn)
 244                         BN_free(bn);
 245                 return 0;
 246                 }
 247
 248         if ((unsigned int)BN_num_bytes(bn) > max_psk_len)
 249                 {
 250                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 251                         max_psk_len, BN_num_bytes(bn));
 252                 BN_free(bn);
 253                 return 0;
 254                 }
 255
 256         psk_len=BN_bn2bin(bn, psk);
 257         BN_free(bn);
 258         if (psk_len == 0)
 259                 goto out_err;
 260
 261         if (c_debug)
 262                 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
 263
 264         return psk_len;
 265  out_err:
 266         if (c_debug)
 267                 BIO_printf(bio_err, "Error in PSK client callback\n");
 268         return 0;
 269         }
 270 #endif
 271
 272 static void sc_usage(void)
 273         {
 274         BIO_printf(bio_err,"usage: s_client args\n");
 275         BIO_printf(bio_err,"\n");
 276         BIO_printf(bio_err," -host host     - use -connect instead\n");
 277         BIO_printf(bio_err," -port port     - use -connect instead\n");
 278         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 279
 280         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 281         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 282         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 283         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 284         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 285         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 286         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 287         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 288         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 289         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 290         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 291         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 292         BIO_printf(bio_err," -debug        - extra output\n");
 293 #ifdef WATT32
 294         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 295 #endif
 296         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 297         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 298         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 299 #ifdef FIONBIO
 300         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 301 #endif
 302         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 303         BIO_printf(bio_err," -quiet        - no s_client output\n");
 304         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 305 #ifndef OPENSSL_NO_PSK
 306         BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
 307         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 308 #endif
 309         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 310         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 311         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 312         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 313         BIO_printf(bio_err," -mtu          - set the MTU\n");
 314         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 315         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 316         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 317         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 318         BIO_printf(bio_err,"                 command to see what is available\n");
 319         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 320         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 321         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 322         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", and \"ftp\" are supported.\n");
 323 #ifndef OPENSSL_NO_ENGINE
 324         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 325 #endif
 326         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 327 #ifndef OPENSSL_NO_TLSEXT
 328         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 329         BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
 330         BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
 331 #endif
 332         }
 333
 334 #ifndef OPENSSL_NO_TLSEXT
 335
 336 /* This is a context that we pass to callbacks */
 337 typedef struct tlsextctx_st {
 338    BIO * biodebug;
 339    int ack;
 340 } tlsextctx;
 341
 342
 343 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 344         {
 345         tlsextctx * p = (tlsextctx *) arg;
 346         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 347         if (SSL_get_servername_type(s) != -1)
 348                 p->ack = !SSL_session_reused(s) && hn != NULL;
 349         else
 350                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 351
 352         return SSL_TLSEXT_ERR_OK;
 353         }
 354 #endif
 355
 356 enum
 357 {
 358         PROTO_OFF       = 0,
 359         PROTO_SMTP,
 360         PROTO_POP3,
 361         PROTO_IMAP,
 362         PROTO_FTP
 363 };
 364
 365 int MAIN(int, char **);
 366
 367 int MAIN(int argc, char **argv)
 368         {
 369         int off=0;
 370         SSL *con=NULL;
 371         X509_STORE *store = NULL;
 372         int s,k,width,state=0;
 373         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 374         int cbuf_len,cbuf_off;
 375         int sbuf_len,sbuf_off;
 376         fd_set readfds,writefds;
 377         short port=PORT;
 378         int full_log=1;
 379         char *host=SSL_HOST_NAME;
 380         char *cert_file=NULL,*key_file=NULL;
 381         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 382         char *passarg = NULL, *pass = NULL;
 383         X509 *cert = NULL;
 384         EVP_PKEY *key = NULL;
 385         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 386         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 387         int crlf=0;
 388         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 389         SSL_CTX *ctx=NULL;
 390         int ret=1,in_init=1,i,nbio_test=0;
 391         int starttls_proto = PROTO_OFF;
 392         int prexit = 0, vflags = 0;
 393         const SSL_METHOD *meth=NULL;
 394         int socket_type=SOCK_STREAM;
 395         BIO *sbio;
 396         char *inrand=NULL;
 397         int mbuf_len=0;
 398 #ifndef OPENSSL_NO_ENGINE
 399         char *engine_id=NULL;
 400         ENGINE *e=NULL;
 401 #endif
 402 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
 403         struct timeval tv;
 404 #if defined(OPENSSL_SYS_BEOS_R5)
 405         int stdin_set = 0;
 406 #endif
 407 #endif
 408
 409 #ifndef OPENSSL_NO_TLSEXT
 410         char *servername = NULL;
 411         tlsextctx tlsextcbp =
 412         {NULL,0};
 413 #endif
 414         char *sess_in = NULL;
 415         char *sess_out = NULL;
 416         struct sockaddr peer;
 417         int peerlen = sizeof(peer);
 418         int enable_timeouts = 0 ;
 419         long socket_mtu = 0;
 420
 421 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 422         meth=SSLv23_client_method();
 423 #elif !defined(OPENSSL_NO_SSL3)
 424         meth=SSLv3_client_method();
 425 #elif !defined(OPENSSL_NO_SSL2)
 426         meth=SSLv2_client_method();
 427 #endif
 428
 429         apps_startup();
 430         c_Pause=0;
 431         c_quiet=0;
 432         c_ign_eof=0;
 433         c_debug=0;
 434         c_msg=0;
 435         c_showcerts=0;
 436
 437         if (bio_err == NULL)
 438                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 439
 440         if (!load_config(bio_err, NULL))
 441                 goto end;
 442
 443         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 444                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 445                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 446                 {
 447                 BIO_printf(bio_err,"out of memory\n");
 448                 goto end;
 449                 }
 450
 451         verify_depth=0;
 452         verify_error=X509_V_OK;
 453 #ifdef FIONBIO
 454         c_nbio=0;
 455 #endif
 456
 457         argc--;
 458         argv++;
 459         while (argc >= 1)
 460                 {
 461                 if      (strcmp(*argv,"-host") == 0)
 462                         {
 463                         if (--argc < 1) goto bad;
 464                         host= *(++argv);
 465                         }
 466                 else if (strcmp(*argv,"-port") == 0)
 467                         {
 468                         if (--argc < 1) goto bad;
 469                         port=atoi(*(++argv));
 470                         if (port == 0) goto bad;
 471                         }
 472                 else if (strcmp(*argv,"-connect") == 0)
 473                         {
 474                         if (--argc < 1) goto bad;
 475                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 476                                 goto bad;
 477                         }
 478                 else if (strcmp(*argv,"-verify") == 0)
 479                         {
 480                         verify=SSL_VERIFY_PEER;
 481                         if (--argc < 1) goto bad;
 482                         verify_depth=atoi(*(++argv));
 483                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 484                         }
 485                 else if (strcmp(*argv,"-cert") == 0)
 486                         {
 487                         if (--argc < 1) goto bad;
 488                         cert_file= *(++argv);
 489                         }
 490                 else if (strcmp(*argv,"-sess_out") == 0)
 491                         {
 492                         if (--argc < 1) goto bad;
 493                         sess_out = *(++argv);
 494                         }
 495                 else if (strcmp(*argv,"-sess_in") == 0)
 496                         {
 497                         if (--argc < 1) goto bad;
 498                         sess_in = *(++argv);
 499                         }
 500                 else if (strcmp(*argv,"-certform") == 0)
 501                         {
 502                         if (--argc < 1) goto bad;
 503                         cert_format = str2fmt(*(++argv));
 504                         }
 505                 else if (strcmp(*argv,"-crl_check") == 0)
 506                         vflags |= X509_V_FLAG_CRL_CHECK;
 507                 else if (strcmp(*argv,"-crl_check_all") == 0)
 508                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 509                 else if (strcmp(*argv,"-verify_return_error") == 0)
 510                         verify_return_error = 1;
 511                 else if (strcmp(*argv,"-prexit") == 0)
 512                         prexit=1;
 513                 else if (strcmp(*argv,"-crlf") == 0)
 514                         crlf=1;
 515                 else if (strcmp(*argv,"-quiet") == 0)
 516                         {
 517                         c_quiet=1;
 518                         c_ign_eof=1;
 519                         }
 520                 else if (strcmp(*argv,"-ign_eof") == 0)
 521                         c_ign_eof=1;
 522                 else if (strcmp(*argv,"-pause") == 0)
 523                         c_Pause=1;
 524                 else if (strcmp(*argv,"-debug") == 0)
 525                         c_debug=1;
 526 #ifndef OPENSSL_NO_TLSEXT
 527                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 528                         c_tlsextdebug=1;
 529 #endif
 530 #ifdef WATT32
 531                 else if (strcmp(*argv,"-wdebug") == 0)
 532                         dbug_init();
 533 #endif
 534                 else if (strcmp(*argv,"-msg") == 0)
 535                         c_msg=1;
 536                 else if (strcmp(*argv,"-showcerts") == 0)
 537                         c_showcerts=1;
 538                 else if (strcmp(*argv,"-nbio_test") == 0)
 539                         nbio_test=1;
 540                 else if (strcmp(*argv,"-state") == 0)
 541                         state=1;
 542 #ifndef OPENSSL_NO_PSK
 543                 else if (strcmp(*argv,"-psk_identity") == 0)
 544                         {
 545                         if (--argc < 1) goto bad;
 546                         psk_identity=*(++argv);
 547                         }
 548                 else if (strcmp(*argv,"-psk") == 0)
 549                         {
 550                         size_t j;
 551
 552                         if (--argc < 1) goto bad;
 553                         psk_key=*(++argv);
 554                         for (j = 0; j < strlen(psk_key); j++)
 555                                 {
 556                                 if (isxdigit((int)psk_key[j]))
 557                                         continue;
 558                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
 559                                 goto bad;
 560                                 }
 561                         }
 562 #endif
 563 #ifndef OPENSSL_NO_SSL2
 564                 else if (strcmp(*argv,"-ssl2") == 0)
 565                         meth=SSLv2_client_method();
 566 #endif
 567 #ifndef OPENSSL_NO_SSL3
 568                 else if (strcmp(*argv,"-ssl3") == 0)
 569                         meth=SSLv3_client_method();
 570 #endif
 571 #ifndef OPENSSL_NO_TLS1
 572                 else if (strcmp(*argv,"-tls1") == 0)
 573                         meth=TLSv1_client_method();
 574 #endif
 575 #ifndef OPENSSL_NO_DTLS1
 576                 else if (strcmp(*argv,"-dtls1") == 0)
 577                         {
 578                         meth=DTLSv1_client_method();
 579                         socket_type=SOCK_DGRAM;
 580                         }
 581                 else if (strcmp(*argv,"-timeout") == 0)
 582                         enable_timeouts=1;
 583                 else if (strcmp(*argv,"-mtu") == 0)
 584                         {
 585                         if (--argc < 1) goto bad;
 586                         socket_mtu = atol(*(++argv));
 587                         }
 588 #endif
 589                 else if (strcmp(*argv,"-bugs") == 0)
 590                         bugs=1;
 591                 else if (strcmp(*argv,"-keyform") == 0)
 592                         {
 593                         if (--argc < 1) goto bad;
 594                         key_format = str2fmt(*(++argv));
 595                         }
 596                 else if (strcmp(*argv,"-pass") == 0)
 597                         {
 598                         if (--argc < 1) goto bad;
 599                         passarg = *(++argv);
 600                         }
 601                 else if (strcmp(*argv,"-key") == 0)
 602                         {
 603                         if (--argc < 1) goto bad;
 604                         key_file= *(++argv);
 605                         }
 606                 else if (strcmp(*argv,"-reconnect") == 0)
 607                         {
 608                         reconnect=5;
 609                         }
 610                 else if (strcmp(*argv,"-CApath") == 0)
 611                         {
 612                         if (--argc < 1) goto bad;
 613                         CApath= *(++argv);
 614                         }
 615                 else if (strcmp(*argv,"-CAfile") == 0)
 616                         {
 617                         if (--argc < 1) goto bad;
 618                         CAfile= *(++argv);
 619                         }
 620                 else if (strcmp(*argv,"-no_tls1") == 0)
 621                         off|=SSL_OP_NO_TLSv1;
 622                 else if (strcmp(*argv,"-no_ssl3") == 0)
 623                         off|=SSL_OP_NO_SSLv3;
 624                 else if (strcmp(*argv,"-no_ssl2") == 0)
 625                         off|=SSL_OP_NO_SSLv2;
 626                 else if (strcmp(*argv,"-no_comp") == 0)
 627                         { off|=SSL_OP_NO_COMPRESSION; }
 628 #ifndef OPENSSL_NO_TLSEXT
 629                 else if (strcmp(*argv,"-no_ticket") == 0)
 630                         { off|=SSL_OP_NO_TICKET; }
 631 #endif
 632                 else if (strcmp(*argv,"-serverpref") == 0)
 633                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 634                 else if (strcmp(*argv,"-cipher") == 0)
 635                         {
 636                         if (--argc < 1) goto bad;
 637                         cipher= *(++argv);
 638                         }
 639 #ifdef FIONBIO
 640                 else if (strcmp(*argv,"-nbio") == 0)
 641                         { c_nbio=1; }
 642 #endif
 643                 else if (strcmp(*argv,"-starttls") == 0)
 644                         {
 645                         if (--argc < 1) goto bad;
 646                         ++argv;
 647                         if (strcmp(*argv,"smtp") == 0)
 648                                 starttls_proto = PROTO_SMTP;
 649                         else if (strcmp(*argv,"pop3") == 0)
 650                                 starttls_proto = PROTO_POP3;
 651                         else if (strcmp(*argv,"imap") == 0)
 652                                 starttls_proto = PROTO_IMAP;
 653                         else if (strcmp(*argv,"ftp") == 0)
 654                                 starttls_proto = PROTO_FTP;
 655                         else
 656                                 goto bad;
 657                         }
 658 #ifndef OPENSSL_NO_ENGINE
 659                 else if (strcmp(*argv,"-engine") == 0)
 660                         {
 661                         if (--argc < 1) goto bad;
 662                         engine_id = *(++argv);
 663                         }
 664 #endif
 665                 else if (strcmp(*argv,"-rand") == 0)
 666                         {
 667                         if (--argc < 1) goto bad;
 668                         inrand= *(++argv);
 669                         }
 670 #ifndef OPENSSL_NO_TLSEXT
 671                 else if (strcmp(*argv,"-servername") == 0)
 672                         {
 673                         if (--argc < 1) goto bad;
 674                         servername= *(++argv);
 675                         /* meth=TLSv1_client_method(); */
 676                         }
 677 #endif
 678                 else
 679                         {
 680                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 681                         badop=1;
 682                         break;
 683                         }
 684                 argc--;
 685                 argv++;
 686                 }
 687         if (badop)
 688                 {
 689 bad:
 690                 sc_usage();
 691                 goto end;
 692                 }
 693
 694         OpenSSL_add_ssl_algorithms();
 695         SSL_load_error_strings();
 696
 697 #ifndef OPENSSL_NO_ENGINE
 698         e = setup_engine(bio_err, engine_id, 1);
 699 #endif
 700         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
 701                 {
 702                 BIO_printf(bio_err, "Error getting password\n");
 703                 goto end;
 704                 }
 705
 706         if (key_file == NULL)
 707                 key_file = cert_file;
 708
 709
 710         if (key_file)
 711
 712                 {
 713
 714                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
 715                                "client certificate private key file");
 716                 if (!key)
 717                         {
 718                         ERR_print_errors(bio_err);
 719                         goto end;
 720                         }
 721
 722                 }
 723
 724         if (cert_file)
 725
 726                 {
 727                 cert = load_cert(bio_err,cert_file,cert_format,
 728                                 NULL, e, "client certificate file");
 729
 730                 if (!cert)
 731                         {
 732                         ERR_print_errors(bio_err);
 733                         goto end;
 734                         }
 735                 }
 736
 737         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 738                 && !RAND_status())
 739                 {
 740                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 741                 }
 742         if (inrand != NULL)
 743                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 744                         app_RAND_load_files(inrand));
 745
 746         if (bio_c_out == NULL)
 747                 {
 748                 if (c_quiet && !c_debug && !c_msg)
 749                         {
 750                         bio_c_out=BIO_new(BIO_s_null());
 751                         }
 752                 else
 753                         {
 754                         if (bio_c_out == NULL)
 755                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 756                         }
 757                 }
 758
 759         ctx=SSL_CTX_new(meth);
 760         if (ctx == NULL)
 761                 {
 762                 ERR_print_errors(bio_err);
 763                 goto end;
 764                 }
 765
 766 #ifndef OPENSSL_NO_PSK
 767         if (psk_key != NULL)
 768                 {
 769                 if (c_debug)
 770                         BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
 771                 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
 772                 }
 773 #endif
 774         if (bugs)
 775                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 776         else
 777                 SSL_CTX_set_options(ctx,off);
 778         /* DTLS: partial reads end up discarding unread UDP bytes :-(
 779          * Setting read ahead solves this problem.
 780          */
 781         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
 782
 783         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 784         if (cipher != NULL)
 785                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 786                 BIO_printf(bio_err,"error setting cipher list\n");
 787                 ERR_print_errors(bio_err);
 788                 goto end;
 789         }
 790 #if 0
 791         else
 792                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 793 #endif
 794
 795         SSL_CTX_set_verify(ctx,verify,verify_callback);
 796         if (!set_cert_key_stuff(ctx,cert,key))
 797                 goto end;
 798
 799         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 800                 (!SSL_CTX_set_default_verify_paths(ctx)))
 801                 {
 802                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 803                 ERR_print_errors(bio_err);
 804                 /* goto end; */
 805                 }
 806
 807         store = SSL_CTX_get_cert_store(ctx);
 808         X509_STORE_set_flags(store, vflags);
 809 #ifndef OPENSSL_NO_TLSEXT
 810         if (servername != NULL)
 811                 {
 812                 tlsextcbp.biodebug = bio_err;
 813                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
 814                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
 815                 }
 816 #endif
 817
 818         con=SSL_new(ctx);
 819         if (sess_in)
 820                 {
 821                 SSL_SESSION *sess;
 822                 BIO *stmp = BIO_new_file(sess_in, "r");
 823                 if (!stmp)
 824                         {
 825                         BIO_printf(bio_err, "Can't open session file %s\n",
 826                                                 sess_in);
 827                         ERR_print_errors(bio_err);
 828                         goto end;
 829                         }
 830                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
 831                 BIO_free(stmp);
 832                 if (!sess)
 833                         {
 834                         BIO_printf(bio_err, "Can't open session file %s\n",
 835                                                 sess_in);
 836                         ERR_print_errors(bio_err);
 837                         goto end;
 838                         }
 839                 SSL_set_session(con, sess);
 840                 SSL_SESSION_free(sess);
 841                 }
 842 #ifndef OPENSSL_NO_TLSEXT
 843         if (servername != NULL)
 844                 {
 845                 if (!SSL_set_tlsext_host_name(con,servername))
 846                         {
 847                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
 848                         ERR_print_errors(bio_err);
 849                         goto end;
 850                         }
 851                 }
 852 #endif
 853 #ifndef OPENSSL_NO_KRB5
 854         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 855                 {
 856                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 857                 }
 858 #endif  /* OPENSSL_NO_KRB5  */
 859 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 860
 861 re_start:
 862
 863         if (init_client(&s,host,port,socket_type) == 0)
 864                 {
 865                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 866                 SHUTDOWN(s);
 867                 goto end;
 868                 }
 869         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 870
 871 #ifdef FIONBIO
 872         if (c_nbio)
 873                 {
 874                 unsigned long l=1;
 875                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 876                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 877                         {
 878                         ERR_print_errors(bio_err);
 879                         goto end;
 880                         }
 881                 }
 882 #endif
 883         if (c_Pause & 0x01) con->debug=1;
 884
 885         if ( SSL_version(con) == DTLS1_VERSION)
 886                 {
 887                 struct timeval timeout;
 888
 889                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
 890                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
 891                         {
 892                         BIO_printf(bio_err, "getsockname:errno=%d\n",
 893                                 get_last_socket_error());
 894                         SHUTDOWN(s);
 895                         goto end;
 896                         }
 897
 898                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
 899
 900                 if (enable_timeouts)
 901                         {
 902                         timeout.tv_sec = 0;
 903                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
 904                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
 905
 906                         timeout.tv_sec = 0;
 907                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
 908                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
 909                         }
 910
 911                 if (socket_mtu > 0)
 912                         {
 913                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
 914                         SSL_set_mtu(con, socket_mtu);
 915                         }
 916                 else
 917                         /* want to do MTU discovery */
 918                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
 919                 }
 920         else
 921                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
 922
 923
 924
 925         if (nbio_test)
 926                 {
 927                 BIO *test;
 928
 929                 test=BIO_new(BIO_f_nbio_test());
 930                 sbio=BIO_push(test,sbio);
 931                 }
 932
 933         if (c_debug)
 934                 {
 935                 con->debug=1;
 936                 BIO_set_callback(sbio,bio_dump_callback);
 937                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
 938                 }
 939         if (c_msg)
 940                 {
 941                 SSL_set_msg_callback(con, msg_cb);
 942                 SSL_set_msg_callback_arg(con, bio_c_out);
 943                 }
 944 #ifndef OPENSSL_NO_TLSEXT
 945         if (c_tlsextdebug)
 946                 {
 947                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
 948                 SSL_set_tlsext_debug_arg(con, bio_c_out);
 949                 }
 950 #endif
 951
 952         SSL_set_bio(con,sbio,sbio);
 953         SSL_set_connect_state(con);
 954
 955         /* ok, lets connect */
 956         width=SSL_get_fd(con)+1;
 957
 958         read_tty=1;
 959         write_tty=0;
 960         tty_on=0;
 961         read_ssl=1;
 962         write_ssl=1;
 963
 964         cbuf_len=0;
 965         cbuf_off=0;
 966         sbuf_len=0;
 967         sbuf_off=0;
 968
 969         /* This is an ugly hack that does a lot of assumptions */
 970         /* We do have to handle multi-line responses which may come
 971            in a single packet or not. We therefore have to use
 972            BIO_gets() which does need a buffering BIO. So during
 973            the initial chitchat we do push a buffering BIO into the
 974            chain that is removed again later on to not disturb the
 975            rest of the s_client operation. */
 976         if (starttls_proto == PROTO_SMTP)
 977                 {
 978                 int foundit=0;
 979                 BIO *fbio = BIO_new(BIO_f_buffer());
 980                 BIO_push(fbio, sbio);
 981                 /* wait for multi-line response to end from SMTP */
 982                 do
 983                         {
 984                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 985                         }
 986                 while (mbuf_len>3 && mbuf[3]=='-');
 987                 /* STARTTLS command requires EHLO... */
 988                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
 989                 (void)BIO_flush(fbio);
 990                 /* wait for multi-line response to end EHLO SMTP response */
 991                 do
 992                         {
 993                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 994                         if (strstr(mbuf,"STARTTLS"))
 995                                 foundit=1;
 996                         }
 997                 while (mbuf_len>3 && mbuf[3]=='-');
 998                 (void)BIO_flush(fbio);
 999                 BIO_pop(fbio);
1000                 BIO_free(fbio);
1001                 if (!foundit)
1002                         BIO_printf(bio_err,
1003                                    "didn't found starttls in server response,"
1004                                    " try anyway...\n");
1005                 BIO_printf(sbio,"STARTTLS\r\n");
1006                 BIO_read(sbio,sbuf,BUFSIZZ);
1007                 }
1008         else if (starttls_proto == PROTO_POP3)
1009                 {
1010                 BIO_read(sbio,mbuf,BUFSIZZ);
1011                 BIO_printf(sbio,"STLS\r\n");
1012                 BIO_read(sbio,sbuf,BUFSIZZ);
1013                 }
1014         else if (starttls_proto == PROTO_IMAP)
1015                 {
1016                 int foundit=0;
1017                 BIO *fbio = BIO_new(BIO_f_buffer());
1018                 BIO_push(fbio, sbio);
1019                 BIO_gets(fbio,mbuf,BUFSIZZ);
1020                 /* STARTTLS command requires CAPABILITY... */
1021                 BIO_printf(fbio,". CAPABILITY\r\n");
1022                 (void)BIO_flush(fbio);
1023                 /* wait for multi-line CAPABILITY response */
1024                 do
1025                         {
1026                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1027                         if (strstr(mbuf,"STARTTLS"))
1028                                 foundit=1;
1029                         }
1030                 while (mbuf_len>3 && mbuf[0]!='.');
1031                 (void)BIO_flush(fbio);
1032                 BIO_pop(fbio);
1033                 BIO_free(fbio);
1034                 if (!foundit)
1035                         BIO_printf(bio_err,
1036                                    "didn't found STARTTLS in server response,"
1037                                    " try anyway...\n");
1038                 BIO_printf(sbio,". STARTTLS\r\n");
1039                 BIO_read(sbio,sbuf,BUFSIZZ);
1040                 }
1041         else if (starttls_proto == PROTO_FTP)
1042                 {
1043                 BIO *fbio = BIO_new(BIO_f_buffer());
1044                 BIO_push(fbio, sbio);
1045                 /* wait for multi-line response to end from FTP */
1046                 do
1047                         {
1048                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1049                         }
1050                 while (mbuf_len>3 && mbuf[3]=='-');
1051                 (void)BIO_flush(fbio);
1052                 BIO_pop(fbio);
1053                 BIO_free(fbio);
1054                 BIO_printf(sbio,"AUTH TLS\r\n");
1055                 BIO_read(sbio,sbuf,BUFSIZZ);
1056                 }
1057
1058         for (;;)
1059                 {
1060                 FD_ZERO(&readfds);
1061                 FD_ZERO(&writefds);
1062
1063                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1064                         {
1065                         in_init=1;
1066                         tty_on=0;
1067                         }
1068                 else
1069                         {
1070                         tty_on=1;
1071                         if (in_init)
1072                                 {
1073                                 in_init=0;
1074 #ifndef OPENSSL_NO_TLSEXT
1075                                 if (servername != NULL && !SSL_session_reused(con))
1076                                         {
1077                                         BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
1078                                         }
1079 #endif
1080                                 if (sess_out)
1081                                         {
1082                                         BIO *stmp = BIO_new_file(sess_out, "w");
1083                                         if (stmp)
1084                                                 {
1085                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1086                                                 BIO_free(stmp);
1087                                                 }
1088                                         else
1089                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1090                                         }
1091                                 print_stuff(bio_c_out,con,full_log);
1092                                 if (full_log > 0) full_log--;
1093
1094                                 if (starttls_proto)
1095                                         {
1096                                         BIO_printf(bio_err,"%s",mbuf);
1097                                         /* We don't need to know any more */
1098                                         starttls_proto = PROTO_OFF;
1099                                         }
1100
1101                                 if (reconnect)
1102                                         {
1103                                         reconnect--;
1104                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1105                                         SSL_shutdown(con);
1106                                         SSL_set_connect_state(con);
1107                                         SHUTDOWN(SSL_get_fd(con));
1108                                         goto re_start;
1109                                         }
1110                                 }
1111                         }
1112
1113                 ssl_pending = read_ssl && SSL_pending(con);
1114
1115                 if (!ssl_pending)
1116                         {
1117 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
1118                         if (tty_on)
1119                                 {
1120                                 if (read_tty)  openssl_fdset(fileno(stdin),&readfds);
1121                                 if (write_tty) openssl_fdset(fileno(stdout),&writefds);
1122                                 }
1123                         if (read_ssl)
1124                                 openssl_fdset(SSL_get_fd(con),&readfds);
1125                         if (write_ssl)
1126                                 openssl_fdset(SSL_get_fd(con),&writefds);
1127 #else
1128                         if(!tty_on || !write_tty) {
1129                                 if (read_ssl)
1130                                         openssl_fdset(SSL_get_fd(con),&readfds);
1131                                 if (write_ssl)
1132                                         openssl_fdset(SSL_get_fd(con),&writefds);
1133                         }
1134 #endif
1135 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1136                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1137
1138                         /* Note: under VMS with SOCKETSHR the second parameter
1139                          * is currently of type (int *) whereas under other
1140                          * systems it is (void *) if you don't have a cast it
1141                          * will choke the compiler: if you do have a cast then
1142                          * you can either go for (int *) or (void *).
1143                          */
1144 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1145                         /* Under Windows/DOS we make the assumption that we can
1146                          * always write to the tty: therefore if we need to
1147                          * write to the tty we just fall through. Otherwise
1148                          * we timeout the select every second and see if there
1149                          * are any keypresses. Note: this is a hack, in a proper
1150                          * Windows application we wouldn't do this.
1151                          */
1152                         i=0;
1153                         if(!write_tty) {
1154                                 if(read_tty) {
1155                                         tv.tv_sec = 1;
1156                                         tv.tv_usec = 0;
1157                                         i=select(width,(void *)&readfds,(void *)&writefds,
1158                                                  NULL,&tv);
1159 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1160                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1161 #else
1162                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1163 #endif
1164                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1165                                          NULL,NULL);
1166                         }
1167 #elif defined(OPENSSL_SYS_NETWARE)
1168                         if(!write_tty) {
1169                                 if(read_tty) {
1170                                         tv.tv_sec = 1;
1171                                         tv.tv_usec = 0;
1172                                         i=select(width,(void *)&readfds,(void *)&writefds,
1173                                                 NULL,&tv);
1174                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1175                                         NULL,NULL);
1176                         }
1177 #elif defined(OPENSSL_SYS_BEOS_R5)
1178                         /* Under BeOS-R5 the situation is similar to DOS */
1179                         i=0;
1180                         stdin_set = 0;
1181                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1182                         if(!write_tty) {
1183                                 if(read_tty) {
1184                                         tv.tv_sec = 1;
1185                                         tv.tv_usec = 0;
1186                                         i=select(width,(void *)&readfds,(void *)&writefds,
1187                                                  NULL,&tv);
1188                                         if (read(fileno(stdin), sbuf, 0) >= 0)
1189                                                 stdin_set = 1;
1190                                         if (!i && (stdin_set != 1 || !read_tty))
1191                                                 continue;
1192                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1193                                          NULL,NULL);
1194                         }
1195                         (void)fcntl(fileno(stdin), F_SETFL, 0);
1196 #else
1197                         i=select(width,(void *)&readfds,(void *)&writefds,
1198                                  NULL,NULL);
1199 #endif
1200                         if ( i < 0)
1201                                 {
1202                                 BIO_printf(bio_err,"bad select %d\n",
1203                                 get_last_socket_error());
1204                                 goto shut;
1205                                 /* goto end; */
1206                                 }
1207                         }
1208
1209                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1210                         {
1211                         k=SSL_write(con,&(cbuf[cbuf_off]),
1212                                 (unsigned int)cbuf_len);
1213                         switch (SSL_get_error(con,k))
1214                                 {
1215                         case SSL_ERROR_NONE:
1216                                 cbuf_off+=k;
1217                                 cbuf_len-=k;
1218                                 if (k <= 0) goto end;
1219                                 /* we have done a  write(con,NULL,0); */
1220                                 if (cbuf_len <= 0)
1221                                         {
1222                                         read_tty=1;
1223                                         write_ssl=0;
1224                                         }
1225                                 else /* if (cbuf_len > 0) */
1226                                         {
1227                                         read_tty=0;
1228                                         write_ssl=1;
1229                                         }
1230                                 break;
1231                         case SSL_ERROR_WANT_WRITE:
1232                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1233                                 write_ssl=1;
1234                                 read_tty=0;
1235                                 break;
1236                         case SSL_ERROR_WANT_READ:
1237                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1238                                 write_tty=0;
1239                                 read_ssl=1;
1240                                 write_ssl=0;
1241                                 break;
1242                         case SSL_ERROR_WANT_X509_LOOKUP:
1243                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1244                                 break;
1245                         case SSL_ERROR_ZERO_RETURN:
1246                                 if (cbuf_len != 0)
1247                                         {
1248                                         BIO_printf(bio_c_out,"shutdown\n");
1249                                         goto shut;
1250                                         }
1251                                 else
1252                                         {
1253                                         read_tty=1;
1254                                         write_ssl=0;
1255                                         break;
1256                                         }
1257
1258                         case SSL_ERROR_SYSCALL:
1259                                 if ((k != 0) || (cbuf_len != 0))
1260                                         {
1261                                         BIO_printf(bio_err,"write:errno=%d\n",
1262                                                 get_last_socket_error());
1263                                         goto shut;
1264                                         }
1265                                 else
1266                                         {
1267                                         read_tty=1;
1268                                         write_ssl=0;
1269                                         }
1270                                 break;
1271                         case SSL_ERROR_SSL:
1272                                 ERR_print_errors(bio_err);
1273                                 goto shut;
1274                                 }
1275                         }
1276 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1277                 /* Assume Windows/DOS/BeOS can always write */
1278                 else if (!ssl_pending && write_tty)
1279 #else
1280                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1281 #endif
1282                         {
1283 #ifdef CHARSET_EBCDIC
1284                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1285 #endif
1286                         i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
1287
1288                         if (i <= 0)
1289                                 {
1290                                 BIO_printf(bio_c_out,"DONE\n");
1291                                 goto shut;
1292                                 /* goto end; */
1293                                 }
1294
1295                         sbuf_len-=i;;
1296                         sbuf_off+=i;
1297                         if (sbuf_len <= 0)
1298                                 {
1299                                 read_ssl=1;
1300                                 write_tty=0;
1301                                 }
1302                         }
1303                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1304                         {
1305 #ifdef RENEG
1306 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1307 #endif
1308 #if 1
1309                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1310 #else
1311 /* Demo for pending and peek :-) */
1312                         k=SSL_read(con,sbuf,16);
1313 { char zbuf[10240];
1314 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1315 }
1316 #endif
1317
1318                         switch (SSL_get_error(con,k))
1319                                 {
1320                         case SSL_ERROR_NONE:
1321                                 if (k <= 0)
1322                                         goto end;
1323                                 sbuf_off=0;
1324                                 sbuf_len=k;
1325
1326                                 read_ssl=0;
1327                                 write_tty=1;
1328                                 break;
1329                         case SSL_ERROR_WANT_WRITE:
1330                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1331                                 write_ssl=1;
1332                                 read_tty=0;
1333                                 break;
1334                         case SSL_ERROR_WANT_READ:
1335                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1336                                 write_tty=0;
1337                                 read_ssl=1;
1338                                 if ((read_tty == 0) && (write_ssl == 0))
1339                                         write_ssl=1;
1340                                 break;
1341                         case SSL_ERROR_WANT_X509_LOOKUP:
1342                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1343                                 break;
1344                         case SSL_ERROR_SYSCALL:
1345                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
1346                                 goto shut;
1347                         case SSL_ERROR_ZERO_RETURN:
1348                                 BIO_printf(bio_c_out,"closed\n");
1349                                 goto shut;
1350                         case SSL_ERROR_SSL:
1351                                 ERR_print_errors(bio_err);
1352                                 goto shut;
1353                                 /* break; */
1354                                 }
1355                         }
1356
1357 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1358 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1359                 else if (_kbhit())
1360 #else
1361                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1362 #endif
1363 #elif defined (OPENSSL_SYS_NETWARE)
1364                 else if (_kbhit())
1365 #elif defined(OPENSSL_SYS_BEOS_R5)
1366                 else if (stdin_set)
1367 #else
1368                 else if (FD_ISSET(fileno(stdin),&readfds))
1369 #endif
1370                         {
1371                         if (crlf)
1372                                 {
1373                                 int j, lf_num;
1374
1375                                 i=raw_read_stdin(cbuf,BUFSIZZ/2);
1376                                 lf_num = 0;
1377                                 /* both loops are skipped when i <= 0 */
1378                                 for (j = 0; j < i; j++)
1379                                         if (cbuf[j] == '\n')
1380                                                 lf_num++;
1381                                 for (j = i-1; j >= 0; j--)
1382                                         {
1383                                         cbuf[j+lf_num] = cbuf[j];
1384                                         if (cbuf[j] == '\n')
1385                                                 {
1386                                                 lf_num--;
1387                                                 i++;
1388                                                 cbuf[j+lf_num] = '\r';
1389                                                 }
1390                                         }
1391                                 assert(lf_num == 0);
1392                                 }
1393                         else
1394                                 i=raw_read_stdin(cbuf,BUFSIZZ);
1395
1396                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1397                                 {
1398                                 BIO_printf(bio_err,"DONE\n");
1399                                 goto shut;
1400                                 }
1401
1402                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1403                                 {
1404                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1405                                 SSL_renegotiate(con);
1406                                 cbuf_len=0;
1407                                 }
1408                         else
1409                                 {
1410                                 cbuf_len=i;
1411                                 cbuf_off=0;
1412 #ifdef CHARSET_EBCDIC
1413                                 ebcdic2ascii(cbuf, cbuf, i);
1414 #endif
1415                                 }
1416
1417                         write_ssl=1;
1418                         read_tty=0;
1419                         }
1420                 }
1421 shut:
1422         if (in_init)
1423                 print_stuff(bio_c_out,con,full_log);
1424         SSL_shutdown(con);
1425         SHUTDOWN(SSL_get_fd(con));
1426         ret=0;
1427 end:
1428         if (con != NULL)
1429                 {
1430                 if (prexit != 0)
1431                         print_stuff(bio_c_out,con,1);
1432                 SSL_free(con);
1433                 }
1434         if (ctx != NULL) SSL_CTX_free(ctx);
1435         if (cert)
1436                 X509_free(cert);
1437         if (key)
1438                 EVP_PKEY_free(key);
1439         if (pass)
1440                 OPENSSL_free(pass);
1441         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1442         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1443         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1444         if (bio_c_out != NULL)
1445                 {
1446                 BIO_free(bio_c_out);
1447                 bio_c_out=NULL;
1448                 }
1449         apps_shutdown();
1450         OPENSSL_EXIT(ret);
1451         }
1452
1453
1454 static void print_stuff(BIO *bio, SSL *s, int full)
1455         {
1456         X509 *peer=NULL;
1457         char *p;
1458         static const char *space="                ";
1459         char buf[BUFSIZ];
1460         STACK_OF(X509) *sk;
1461         STACK_OF(X509_NAME) *sk2;
1462         SSL_CIPHER *c;
1463         X509_NAME *xn;
1464         int j,i;
1465 #ifndef OPENSSL_NO_COMP
1466         const COMP_METHOD *comp, *expansion;
1467 #endif
1468
1469         if (full)
1470                 {
1471                 int got_a_chain = 0;
1472
1473                 sk=SSL_get_peer_cert_chain(s);
1474                 if (sk != NULL)
1475                         {
1476                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1477
1478                         BIO_printf(bio,"---\nCertificate chain\n");
1479                         for (i=0; i<sk_X509_num(sk); i++)
1480                                 {
1481                                 X509_NAME_oneline(X509_get_subject_name(
1482                                         sk_X509_value(sk,i)),buf,sizeof buf);
1483                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1484                                 X509_NAME_oneline(X509_get_issuer_name(
1485                                         sk_X509_value(sk,i)),buf,sizeof buf);
1486                                 BIO_printf(bio,"   i:%s\n",buf);
1487                                 if (c_showcerts)
1488                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1489                                 }
1490                         }
1491
1492                 BIO_printf(bio,"---\n");
1493                 peer=SSL_get_peer_certificate(s);
1494                 if (peer != NULL)
1495                         {
1496                         BIO_printf(bio,"Server certificate\n");
1497                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1498                                 PEM_write_bio_X509(bio,peer);
1499                         X509_NAME_oneline(X509_get_subject_name(peer),
1500                                 buf,sizeof buf);
1501                         BIO_printf(bio,"subject=%s\n",buf);
1502                         X509_NAME_oneline(X509_get_issuer_name(peer),
1503                                 buf,sizeof buf);
1504                         BIO_printf(bio,"issuer=%s\n",buf);
1505                         }
1506                 else
1507                         BIO_printf(bio,"no peer certificate available\n");
1508
1509                 sk2=SSL_get_client_CA_list(s);
1510                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1511                         {
1512                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1513                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1514                                 {
1515                                 xn=sk_X509_NAME_value(sk2,i);
1516                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1517                                 BIO_write(bio,buf,strlen(buf));
1518                                 BIO_write(bio,"\n",1);
1519                                 }
1520                         }
1521                 else
1522                         {
1523                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1524                         }
1525                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1526                 if (p != NULL)
1527                         {
1528                         /* This works only for SSL 2.  In later protocol
1529                          * versions, the client does not know what other
1530                          * ciphers (in addition to the one to be used
1531                          * in the current connection) the server supports. */
1532
1533                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1534                         j=i=0;
1535                         while (*p)
1536                                 {
1537                                 if (*p == ':')
1538                                         {
1539                                         BIO_write(bio,space,15-j%25);
1540                                         i++;
1541                                         j=0;
1542                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1543                                         }
1544                                 else
1545                                         {
1546                                         BIO_write(bio,p,1);
1547                                         j++;
1548                                         }
1549                                 p++;
1550                                 }
1551                         BIO_write(bio,"\n",1);
1552                         }
1553
1554                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1555                         BIO_number_read(SSL_get_rbio(s)),
1556                         BIO_number_written(SSL_get_wbio(s)));
1557                 }
1558         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1559         c=SSL_get_current_cipher(s);
1560         BIO_printf(bio,"%s, Cipher is %s\n",
1561                 SSL_CIPHER_get_version(c),
1562                 SSL_CIPHER_get_name(c));
1563         if (peer != NULL) {
1564                 EVP_PKEY *pktmp;
1565                 pktmp = X509_get_pubkey(peer);
1566                 BIO_printf(bio,"Server public key is %d bit\n",
1567                                                          EVP_PKEY_bits(pktmp));
1568                 EVP_PKEY_free(pktmp);
1569         }
1570 #ifndef OPENSSL_NO_COMP
1571         comp=SSL_get_current_compression(s);
1572         expansion=SSL_get_current_expansion(s);
1573         BIO_printf(bio,"Compression: %s\n",
1574                 comp ? SSL_COMP_get_name(comp) : "NONE");
1575         BIO_printf(bio,"Expansion: %s\n",
1576                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1577 #endif
1578         SSL_SESSION_print(bio,SSL_get_session(s));
1579         BIO_printf(bio,"---\n");
1580         if (peer != NULL)
1581                 X509_free(peer);
1582         /* flush, or debugging output gets mixed with http response */
1583         (void)BIO_flush(bio);
1584         }
1585