apps/s_client.c

   1 /* apps/s_client.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111 /* ====================================================================
 112  * Copyright 2005 Nokia. All rights reserved.
 113  *
 114  * The portions of the attached software ("Contribution") is developed by
 115  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
 116  * license.
 117  *
 118  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
 119  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
 120  * support (see RFC 4279) to OpenSSL.
 121  *
 122  * No patent licenses or other rights except those expressly stated in
 123  * the OpenSSL open source license shall be deemed granted or received
 124  * expressly, by implication, estoppel, or otherwise.
 125  *
 126  * No assurances are provided by Nokia that the Contribution does not
 127  * infringe the patent or other intellectual property rights of any third
 128  * party or that the license provides you with all the necessary rights
 129  * to make use of the Contribution.
 130  *
 131  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
 132  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
 133  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
 134  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
 135  * OTHERWISE.
 136  */
 137
 138 #include <assert.h>
 139 #include <ctype.h>
 140 #include <stdio.h>
 141 #include <stdlib.h>
 142 #include <string.h>
 143 #include <openssl/e_os2.h>
 144 #ifdef OPENSSL_NO_STDIO
 145 #define APPS_WIN16
 146 #endif
 147
 148 /* With IPv6, it looks like Digital has mixed up the proper order of
 149    recursive header file inclusion, resulting in the compiler complaining
 150    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 151    is needed to have fileno() declared correctly...  So let's define u_int */
 152 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 153 #define __U_INT
 154 typedef unsigned int u_int;
 155 #endif
 156
 157 #define USE_SOCKETS
 158 #include "apps.h"
 159 #include <openssl/x509.h>
 160 #include <openssl/ssl.h>
 161 #include <openssl/err.h>
 162 #include <openssl/pem.h>
 163 #include <openssl/rand.h>
 164 #include "s_apps.h"
 165 #include "timeouts.h"
 166
 167 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 168 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 169 #undef FIONBIO
 170 #endif
 171
 172 #if defined(OPENSSL_SYS_BEOS_R5)
 173 #include <fcntl.h>
 174 #endif
 175
 176 #undef PROG
 177 #define PROG    s_client_main
 178
 179 /*#define SSL_HOST_NAME "www.netscape.com" */
 180 /*#define SSL_HOST_NAME "193.118.187.102" */
 181 #define SSL_HOST_NAME   "localhost"
 182
 183 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 184
 185 #undef BUFSIZZ
 186 #define BUFSIZZ 1024*8
 187
 188 extern int verify_depth;
 189 extern int verify_error;
 190 extern int verify_return_error;
 191
 192 #ifdef FIONBIO
 193 static int c_nbio=0;
 194 #endif
 195 static int c_Pause=0;
 196 static int c_debug=0;
 197 #ifndef OPENSSL_NO_TLSEXT
 198 static int c_tlsextdebug=0;
 199 #endif
 200 static int c_msg=0;
 201 static int c_showcerts=0;
 202
 203 static void sc_usage(void);
 204 static void print_stuff(BIO *berr,SSL *con,int full);
 205 static BIO *bio_c_out=NULL;
 206 static int c_quiet=0;
 207 static int c_ign_eof=0;
 208
 209 #ifndef OPENSSL_NO_PSK
 210 /* Default PSK identity and key */
 211 static char *psk_identity="Client_identity";
 212 static char *psk_key=NULL; /* by default PSK is not used */
 213
 214 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
 215         unsigned int max_identity_len, unsigned char *psk,
 216         unsigned int max_psk_len)
 217         {
 218         unsigned int psk_len = 0;
 219         int ret;
 220         BIGNUM *bn=NULL;
 221
 222         if (c_debug)
 223                 BIO_printf(bio_c_out, "psk_client_cb\n");
 224         if (!hint)
 225                 {
 226                 /* no ServerKeyExchange message*/
 227                 if (c_debug)
 228                         BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n");
 229                 }
 230         else if (c_debug)
 231                 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
 232
 233         /* lookup PSK identity and PSK key based on the given identity hint here */
 234         ret = BIO_snprintf(identity, max_identity_len, psk_identity);
 235         if (ret < 0 || (unsigned int)ret > max_identity_len)
 236                 goto out_err;
 237         if (c_debug)
 238                 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret);
 239         ret=BN_hex2bn(&bn, psk_key);
 240         if (!ret)
 241                 {
 242                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 243                 if (bn)
 244                         BN_free(bn);
 245                 return 0;
 246                 }
 247
 248         if ((unsigned int)BN_num_bytes(bn) > max_psk_len)
 249                 {
 250                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 251                         max_psk_len, BN_num_bytes(bn));
 252                 BN_free(bn);
 253                 return 0;
 254                 }
 255
 256         psk_len=BN_bn2bin(bn, psk);
 257         BN_free(bn);
 258         if (psk_len == 0)
 259                 goto out_err;
 260
 261         if (c_debug)
 262                 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
 263
 264         return psk_len;
 265  out_err:
 266         if (c_debug)
 267                 BIO_printf(bio_err, "Error in PSK client callback\n");
 268         return 0;
 269         }
 270 #endif
 271
 272 static void sc_usage(void)
 273         {
 274         BIO_printf(bio_err,"usage: s_client args\n");
 275         BIO_printf(bio_err,"\n");
 276         BIO_printf(bio_err," -host host     - use -connect instead\n");
 277         BIO_printf(bio_err," -port port     - use -connect instead\n");
 278         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 279
 280         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 281         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 282         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 283         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 284         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 285         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 286         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 287         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 288         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 289         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 290         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 291         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 292         BIO_printf(bio_err," -debug        - extra output\n");
 293 #ifdef WATT32
 294         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 295 #endif
 296         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 297         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 298         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 299 #ifdef FIONBIO
 300         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 301 #endif
 302         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 303         BIO_printf(bio_err," -quiet        - no s_client output\n");
 304         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 305 #ifndef OPENSSL_NO_PSK
 306         BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
 307         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 308 #endif
 309         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 310         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 311         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 312         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 313         BIO_printf(bio_err," -mtu          - set the MTU\n");
 314         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 315         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 316         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 317         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 318         BIO_printf(bio_err,"                 command to see what is available\n");
 319         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 320         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 321         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 322         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", and \"ftp\" are supported.\n");
 323 #ifndef OPENSSL_NO_ENGINE
 324         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 325 #endif
 326         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 327         BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
 328         BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
 329 #ifndef OPENSSL_NO_TLSEXT
 330         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 331         BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
 332         BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
 333 #endif
 334         }
 335
 336 #ifndef OPENSSL_NO_TLSEXT
 337
 338 /* This is a context that we pass to callbacks */
 339 typedef struct tlsextctx_st {
 340    BIO * biodebug;
 341    int ack;
 342 } tlsextctx;
 343
 344
 345 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 346         {
 347         tlsextctx * p = (tlsextctx *) arg;
 348         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 349         if (SSL_get_servername_type(s) != -1)
 350                 p->ack = !SSL_session_reused(s) && hn != NULL;
 351         else
 352                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 353
 354         return SSL_TLSEXT_ERR_OK;
 355         }
 356 #endif
 357
 358 enum
 359 {
 360         PROTO_OFF       = 0,
 361         PROTO_SMTP,
 362         PROTO_POP3,
 363         PROTO_IMAP,
 364         PROTO_FTP
 365 };
 366
 367 int MAIN(int, char **);
 368
 369 int MAIN(int argc, char **argv)
 370         {
 371         int off=0;
 372         SSL *con=NULL;
 373         X509_STORE *store = NULL;
 374         int s,k,width,state=0;
 375         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 376         int cbuf_len,cbuf_off;
 377         int sbuf_len,sbuf_off;
 378         fd_set readfds,writefds;
 379         short port=PORT;
 380         int full_log=1;
 381         char *host=SSL_HOST_NAME;
 382         char *cert_file=NULL,*key_file=NULL;
 383         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 384         char *passarg = NULL, *pass = NULL;
 385         X509 *cert = NULL;
 386         EVP_PKEY *key = NULL;
 387         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 388         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 389         int crlf=0;
 390         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 391         SSL_CTX *ctx=NULL;
 392         int ret=1,in_init=1,i,nbio_test=0;
 393         int starttls_proto = PROTO_OFF;
 394         int prexit = 0, vflags = 0;
 395         const SSL_METHOD *meth=NULL;
 396         int socket_type=SOCK_STREAM;
 397         BIO *sbio;
 398         char *inrand=NULL;
 399         int mbuf_len=0;
 400 #ifndef OPENSSL_NO_ENGINE
 401         char *engine_id=NULL;
 402         ENGINE *e=NULL;
 403 #endif
 404 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
 405         struct timeval tv;
 406 #if defined(OPENSSL_SYS_BEOS_R5)
 407         int stdin_set = 0;
 408 #endif
 409 #endif
 410
 411 #ifndef OPENSSL_NO_TLSEXT
 412         char *servername = NULL;
 413         tlsextctx tlsextcbp =
 414         {NULL,0};
 415 #endif
 416         char *sess_in = NULL;
 417         char *sess_out = NULL;
 418         struct sockaddr peer;
 419         int peerlen = sizeof(peer);
 420         int enable_timeouts = 0 ;
 421         long socket_mtu = 0;
 422
 423 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 424         meth=SSLv23_client_method();
 425 #elif !defined(OPENSSL_NO_SSL3)
 426         meth=SSLv3_client_method();
 427 #elif !defined(OPENSSL_NO_SSL2)
 428         meth=SSLv2_client_method();
 429 #endif
 430
 431         apps_startup();
 432         c_Pause=0;
 433         c_quiet=0;
 434         c_ign_eof=0;
 435         c_debug=0;
 436         c_msg=0;
 437         c_showcerts=0;
 438
 439         if (bio_err == NULL)
 440                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 441
 442         if (!load_config(bio_err, NULL))
 443                 goto end;
 444
 445         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 446                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 447                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 448                 {
 449                 BIO_printf(bio_err,"out of memory\n");
 450                 goto end;
 451                 }
 452
 453         verify_depth=0;
 454         verify_error=X509_V_OK;
 455 #ifdef FIONBIO
 456         c_nbio=0;
 457 #endif
 458
 459         argc--;
 460         argv++;
 461         while (argc >= 1)
 462                 {
 463                 if      (strcmp(*argv,"-host") == 0)
 464                         {
 465                         if (--argc < 1) goto bad;
 466                         host= *(++argv);
 467                         }
 468                 else if (strcmp(*argv,"-port") == 0)
 469                         {
 470                         if (--argc < 1) goto bad;
 471                         port=atoi(*(++argv));
 472                         if (port == 0) goto bad;
 473                         }
 474                 else if (strcmp(*argv,"-connect") == 0)
 475                         {
 476                         if (--argc < 1) goto bad;
 477                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 478                                 goto bad;
 479                         }
 480                 else if (strcmp(*argv,"-verify") == 0)
 481                         {
 482                         verify=SSL_VERIFY_PEER;
 483                         if (--argc < 1) goto bad;
 484                         verify_depth=atoi(*(++argv));
 485                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 486                         }
 487                 else if (strcmp(*argv,"-cert") == 0)
 488                         {
 489                         if (--argc < 1) goto bad;
 490                         cert_file= *(++argv);
 491                         }
 492                 else if (strcmp(*argv,"-sess_out") == 0)
 493                         {
 494                         if (--argc < 1) goto bad;
 495                         sess_out = *(++argv);
 496                         }
 497                 else if (strcmp(*argv,"-sess_in") == 0)
 498                         {
 499                         if (--argc < 1) goto bad;
 500                         sess_in = *(++argv);
 501                         }
 502                 else if (strcmp(*argv,"-certform") == 0)
 503                         {
 504                         if (--argc < 1) goto bad;
 505                         cert_format = str2fmt(*(++argv));
 506                         }
 507                 else if (strcmp(*argv,"-crl_check") == 0)
 508                         vflags |= X509_V_FLAG_CRL_CHECK;
 509                 else if (strcmp(*argv,"-crl_check_all") == 0)
 510                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 511                 else if (strcmp(*argv,"-verify_return_error") == 0)
 512                         verify_return_error = 1;
 513                 else if (strcmp(*argv,"-prexit") == 0)
 514                         prexit=1;
 515                 else if (strcmp(*argv,"-crlf") == 0)
 516                         crlf=1;
 517                 else if (strcmp(*argv,"-quiet") == 0)
 518                         {
 519                         c_quiet=1;
 520                         c_ign_eof=1;
 521                         }
 522                 else if (strcmp(*argv,"-ign_eof") == 0)
 523                         c_ign_eof=1;
 524                 else if (strcmp(*argv,"-pause") == 0)
 525                         c_Pause=1;
 526                 else if (strcmp(*argv,"-debug") == 0)
 527                         c_debug=1;
 528 #ifndef OPENSSL_NO_TLSEXT
 529                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 530                         c_tlsextdebug=1;
 531 #endif
 532 #ifdef WATT32
 533                 else if (strcmp(*argv,"-wdebug") == 0)
 534                         dbug_init();
 535 #endif
 536                 else if (strcmp(*argv,"-msg") == 0)
 537                         c_msg=1;
 538                 else if (strcmp(*argv,"-showcerts") == 0)
 539                         c_showcerts=1;
 540                 else if (strcmp(*argv,"-nbio_test") == 0)
 541                         nbio_test=1;
 542                 else if (strcmp(*argv,"-state") == 0)
 543                         state=1;
 544 #ifndef OPENSSL_NO_PSK
 545                 else if (strcmp(*argv,"-psk_identity") == 0)
 546                         {
 547                         if (--argc < 1) goto bad;
 548                         psk_identity=*(++argv);
 549                         }
 550                 else if (strcmp(*argv,"-psk") == 0)
 551                         {
 552                         size_t j;
 553
 554                         if (--argc < 1) goto bad;
 555                         psk_key=*(++argv);
 556                         for (j = 0; j < strlen(psk_key); j++)
 557                                 {
 558                                 if (isxdigit((int)psk_key[j]))
 559                                         continue;
 560                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
 561                                 goto bad;
 562                                 }
 563                         }
 564 #endif
 565 #ifndef OPENSSL_NO_SSL2
 566                 else if (strcmp(*argv,"-ssl2") == 0)
 567                         meth=SSLv2_client_method();
 568 #endif
 569 #ifndef OPENSSL_NO_SSL3
 570                 else if (strcmp(*argv,"-ssl3") == 0)
 571                         meth=SSLv3_client_method();
 572 #endif
 573 #ifndef OPENSSL_NO_TLS1
 574                 else if (strcmp(*argv,"-tls1") == 0)
 575                         meth=TLSv1_client_method();
 576 #endif
 577 #ifndef OPENSSL_NO_DTLS1
 578                 else if (strcmp(*argv,"-dtls1") == 0)
 579                         {
 580                         meth=DTLSv1_client_method();
 581                         socket_type=SOCK_DGRAM;
 582                         }
 583                 else if (strcmp(*argv,"-timeout") == 0)
 584                         enable_timeouts=1;
 585                 else if (strcmp(*argv,"-mtu") == 0)
 586                         {
 587                         if (--argc < 1) goto bad;
 588                         socket_mtu = atol(*(++argv));
 589                         }
 590 #endif
 591                 else if (strcmp(*argv,"-bugs") == 0)
 592                         bugs=1;
 593                 else if (strcmp(*argv,"-keyform") == 0)
 594                         {
 595                         if (--argc < 1) goto bad;
 596                         key_format = str2fmt(*(++argv));
 597                         }
 598                 else if (strcmp(*argv,"-pass") == 0)
 599                         {
 600                         if (--argc < 1) goto bad;
 601                         passarg = *(++argv);
 602                         }
 603                 else if (strcmp(*argv,"-key") == 0)
 604                         {
 605                         if (--argc < 1) goto bad;
 606                         key_file= *(++argv);
 607                         }
 608                 else if (strcmp(*argv,"-reconnect") == 0)
 609                         {
 610                         reconnect=5;
 611                         }
 612                 else if (strcmp(*argv,"-CApath") == 0)
 613                         {
 614                         if (--argc < 1) goto bad;
 615                         CApath= *(++argv);
 616                         }
 617                 else if (strcmp(*argv,"-CAfile") == 0)
 618                         {
 619                         if (--argc < 1) goto bad;
 620                         CAfile= *(++argv);
 621                         }
 622                 else if (strcmp(*argv,"-no_tls1") == 0)
 623                         off|=SSL_OP_NO_TLSv1;
 624                 else if (strcmp(*argv,"-no_ssl3") == 0)
 625                         off|=SSL_OP_NO_SSLv3;
 626                 else if (strcmp(*argv,"-no_ssl2") == 0)
 627                         off|=SSL_OP_NO_SSLv2;
 628                 else if (strcmp(*argv,"-no_comp") == 0)
 629                         { off|=SSL_OP_NO_COMPRESSION; }
 630 #ifndef OPENSSL_NO_TLSEXT
 631                 else if (strcmp(*argv,"-no_ticket") == 0)
 632                         { off|=SSL_OP_NO_TICKET; }
 633 #endif
 634                 else if (strcmp(*argv,"-serverpref") == 0)
 635                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 636                 else if (strcmp(*argv,"-cipher") == 0)
 637                         {
 638                         if (--argc < 1) goto bad;
 639                         cipher= *(++argv);
 640                         }
 641 #ifdef FIONBIO
 642                 else if (strcmp(*argv,"-nbio") == 0)
 643                         { c_nbio=1; }
 644 #endif
 645                 else if (strcmp(*argv,"-starttls") == 0)
 646                         {
 647                         if (--argc < 1) goto bad;
 648                         ++argv;
 649                         if (strcmp(*argv,"smtp") == 0)
 650                                 starttls_proto = PROTO_SMTP;
 651                         else if (strcmp(*argv,"pop3") == 0)
 652                                 starttls_proto = PROTO_POP3;
 653                         else if (strcmp(*argv,"imap") == 0)
 654                                 starttls_proto = PROTO_IMAP;
 655                         else if (strcmp(*argv,"ftp") == 0)
 656                                 starttls_proto = PROTO_FTP;
 657                         else
 658                                 goto bad;
 659                         }
 660 #ifndef OPENSSL_NO_ENGINE
 661                 else if (strcmp(*argv,"-engine") == 0)
 662                         {
 663                         if (--argc < 1) goto bad;
 664                         engine_id = *(++argv);
 665                         }
 666 #endif
 667                 else if (strcmp(*argv,"-rand") == 0)
 668                         {
 669                         if (--argc < 1) goto bad;
 670                         inrand= *(++argv);
 671                         }
 672 #ifndef OPENSSL_NO_TLSEXT
 673                 else if (strcmp(*argv,"-servername") == 0)
 674                         {
 675                         if (--argc < 1) goto bad;
 676                         servername= *(++argv);
 677                         /* meth=TLSv1_client_method(); */
 678                         }
 679 #endif
 680                 else
 681                         {
 682                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 683                         badop=1;
 684                         break;
 685                         }
 686                 argc--;
 687                 argv++;
 688                 }
 689         if (badop)
 690                 {
 691 bad:
 692                 sc_usage();
 693                 goto end;
 694                 }
 695
 696         OpenSSL_add_ssl_algorithms();
 697         SSL_load_error_strings();
 698
 699 #ifndef OPENSSL_NO_ENGINE
 700         e = setup_engine(bio_err, engine_id, 1);
 701 #endif
 702         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
 703                 {
 704                 BIO_printf(bio_err, "Error getting password\n");
 705                 goto end;
 706                 }
 707
 708         if (key_file == NULL)
 709                 key_file = cert_file;
 710
 711
 712         if (key_file)
 713
 714                 {
 715
 716                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
 717                                "client certificate private key file");
 718                 if (!key)
 719                         {
 720                         ERR_print_errors(bio_err);
 721                         goto end;
 722                         }
 723
 724                 }
 725
 726         if (cert_file)
 727
 728                 {
 729                 cert = load_cert(bio_err,cert_file,cert_format,
 730                                 NULL, e, "client certificate file");
 731
 732                 if (!cert)
 733                         {
 734                         ERR_print_errors(bio_err);
 735                         goto end;
 736                         }
 737                 }
 738
 739         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 740                 && !RAND_status())
 741                 {
 742                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 743                 }
 744         if (inrand != NULL)
 745                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 746                         app_RAND_load_files(inrand));
 747
 748         if (bio_c_out == NULL)
 749                 {
 750                 if (c_quiet && !c_debug && !c_msg)
 751                         {
 752                         bio_c_out=BIO_new(BIO_s_null());
 753                         }
 754                 else
 755                         {
 756                         if (bio_c_out == NULL)
 757                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 758                         }
 759                 }
 760
 761         ctx=SSL_CTX_new(meth);
 762         if (ctx == NULL)
 763                 {
 764                 ERR_print_errors(bio_err);
 765                 goto end;
 766                 }
 767
 768 #ifndef OPENSSL_NO_PSK
 769         if (psk_key != NULL)
 770                 {
 771                 if (c_debug)
 772                         BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
 773                 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
 774                 }
 775 #endif
 776         if (bugs)
 777                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 778         else
 779                 SSL_CTX_set_options(ctx,off);
 780         /* DTLS: partial reads end up discarding unread UDP bytes :-(
 781          * Setting read ahead solves this problem.
 782          */
 783         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
 784
 785         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 786         if (cipher != NULL)
 787                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 788                 BIO_printf(bio_err,"error setting cipher list\n");
 789                 ERR_print_errors(bio_err);
 790                 goto end;
 791         }
 792 #if 0
 793         else
 794                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 795 #endif
 796
 797         SSL_CTX_set_verify(ctx,verify,verify_callback);
 798         if (!set_cert_key_stuff(ctx,cert,key))
 799                 goto end;
 800
 801         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 802                 (!SSL_CTX_set_default_verify_paths(ctx)))
 803                 {
 804                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 805                 ERR_print_errors(bio_err);
 806                 /* goto end; */
 807                 }
 808
 809         store = SSL_CTX_get_cert_store(ctx);
 810         X509_STORE_set_flags(store, vflags);
 811 #ifndef OPENSSL_NO_TLSEXT
 812         if (servername != NULL)
 813                 {
 814                 tlsextcbp.biodebug = bio_err;
 815                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
 816                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
 817                 }
 818 #endif
 819
 820         con=SSL_new(ctx);
 821         if (sess_in)
 822                 {
 823                 SSL_SESSION *sess;
 824                 BIO *stmp = BIO_new_file(sess_in, "r");
 825                 if (!stmp)
 826                         {
 827                         BIO_printf(bio_err, "Can't open session file %s\n",
 828                                                 sess_in);
 829                         ERR_print_errors(bio_err);
 830                         goto end;
 831                         }
 832                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
 833                 BIO_free(stmp);
 834                 if (!sess)
 835                         {
 836                         BIO_printf(bio_err, "Can't open session file %s\n",
 837                                                 sess_in);
 838                         ERR_print_errors(bio_err);
 839                         goto end;
 840                         }
 841                 SSL_set_session(con, sess);
 842                 SSL_SESSION_free(sess);
 843                 }
 844 #ifndef OPENSSL_NO_TLSEXT
 845         if (servername != NULL)
 846                 {
 847                 if (!SSL_set_tlsext_host_name(con,servername))
 848                         {
 849                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
 850                         ERR_print_errors(bio_err);
 851                         goto end;
 852                         }
 853                 }
 854 #endif
 855 #ifndef OPENSSL_NO_KRB5
 856         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 857                 {
 858                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 859                 }
 860 #endif  /* OPENSSL_NO_KRB5  */
 861 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 862
 863 re_start:
 864
 865         if (init_client(&s,host,port,socket_type) == 0)
 866                 {
 867                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 868                 SHUTDOWN(s);
 869                 goto end;
 870                 }
 871         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 872
 873 #ifdef FIONBIO
 874         if (c_nbio)
 875                 {
 876                 unsigned long l=1;
 877                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 878                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 879                         {
 880                         ERR_print_errors(bio_err);
 881                         goto end;
 882                         }
 883                 }
 884 #endif
 885         if (c_Pause & 0x01) con->debug=1;
 886
 887         if ( SSL_version(con) == DTLS1_VERSION)
 888                 {
 889                 struct timeval timeout;
 890
 891                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
 892                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
 893                         {
 894                         BIO_printf(bio_err, "getsockname:errno=%d\n",
 895                                 get_last_socket_error());
 896                         SHUTDOWN(s);
 897                         goto end;
 898                         }
 899
 900                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
 901
 902                 if (enable_timeouts)
 903                         {
 904                         timeout.tv_sec = 0;
 905                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
 906                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
 907
 908                         timeout.tv_sec = 0;
 909                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
 910                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
 911                         }
 912
 913                 if (socket_mtu > 0)
 914                         {
 915                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
 916                         SSL_set_mtu(con, socket_mtu);
 917                         }
 918                 else
 919                         /* want to do MTU discovery */
 920                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
 921                 }
 922         else
 923                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
 924
 925
 926
 927         if (nbio_test)
 928                 {
 929                 BIO *test;
 930
 931                 test=BIO_new(BIO_f_nbio_test());
 932                 sbio=BIO_push(test,sbio);
 933                 }
 934
 935         if (c_debug)
 936                 {
 937                 con->debug=1;
 938                 BIO_set_callback(sbio,bio_dump_callback);
 939                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
 940                 }
 941         if (c_msg)
 942                 {
 943                 SSL_set_msg_callback(con, msg_cb);
 944                 SSL_set_msg_callback_arg(con, bio_c_out);
 945                 }
 946 #ifndef OPENSSL_NO_TLSEXT
 947         if (c_tlsextdebug)
 948                 {
 949                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
 950                 SSL_set_tlsext_debug_arg(con, bio_c_out);
 951                 }
 952 #endif
 953
 954         SSL_set_bio(con,sbio,sbio);
 955         SSL_set_connect_state(con);
 956
 957         /* ok, lets connect */
 958         width=SSL_get_fd(con)+1;
 959
 960         read_tty=1;
 961         write_tty=0;
 962         tty_on=0;
 963         read_ssl=1;
 964         write_ssl=1;
 965
 966         cbuf_len=0;
 967         cbuf_off=0;
 968         sbuf_len=0;
 969         sbuf_off=0;
 970
 971         /* This is an ugly hack that does a lot of assumptions */
 972         /* We do have to handle multi-line responses which may come
 973            in a single packet or not. We therefore have to use
 974            BIO_gets() which does need a buffering BIO. So during
 975            the initial chitchat we do push a buffering BIO into the
 976            chain that is removed again later on to not disturb the
 977            rest of the s_client operation. */
 978         if (starttls_proto == PROTO_SMTP)
 979                 {
 980                 int foundit=0;
 981                 BIO *fbio = BIO_new(BIO_f_buffer());
 982                 BIO_push(fbio, sbio);
 983                 /* wait for multi-line response to end from SMTP */
 984                 do
 985                         {
 986                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 987                         }
 988                 while (mbuf_len>3 && mbuf[3]=='-');
 989                 /* STARTTLS command requires EHLO... */
 990                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
 991                 (void)BIO_flush(fbio);
 992                 /* wait for multi-line response to end EHLO SMTP response */
 993                 do
 994                         {
 995                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 996                         if (strstr(mbuf,"STARTTLS"))
 997                                 foundit=1;
 998                         }
 999                 while (mbuf_len>3 && mbuf[3]=='-');
1000                 (void)BIO_flush(fbio);
1001                 BIO_pop(fbio);
1002                 BIO_free(fbio);
1003                 if (!foundit)
1004                         BIO_printf(bio_err,
1005                                    "didn't found starttls in server response,"
1006                                    " try anyway...\n");
1007                 BIO_printf(sbio,"STARTTLS\r\n");
1008                 BIO_read(sbio,sbuf,BUFSIZZ);
1009                 }
1010         else if (starttls_proto == PROTO_POP3)
1011                 {
1012                 BIO_read(sbio,mbuf,BUFSIZZ);
1013                 BIO_printf(sbio,"STLS\r\n");
1014                 BIO_read(sbio,sbuf,BUFSIZZ);
1015                 }
1016         else if (starttls_proto == PROTO_IMAP)
1017                 {
1018                 int foundit=0;
1019                 BIO *fbio = BIO_new(BIO_f_buffer());
1020                 BIO_push(fbio, sbio);
1021                 BIO_gets(fbio,mbuf,BUFSIZZ);
1022                 /* STARTTLS command requires CAPABILITY... */
1023                 BIO_printf(fbio,". CAPABILITY\r\n");
1024                 (void)BIO_flush(fbio);
1025                 /* wait for multi-line CAPABILITY response */
1026                 do
1027                         {
1028                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1029                         if (strstr(mbuf,"STARTTLS"))
1030                                 foundit=1;
1031                         }
1032                 while (mbuf_len>3 && mbuf[0]!='.');
1033                 (void)BIO_flush(fbio);
1034                 BIO_pop(fbio);
1035                 BIO_free(fbio);
1036                 if (!foundit)
1037                         BIO_printf(bio_err,
1038                                    "didn't found STARTTLS in server response,"
1039                                    " try anyway...\n");
1040                 BIO_printf(sbio,". STARTTLS\r\n");
1041                 BIO_read(sbio,sbuf,BUFSIZZ);
1042                 }
1043         else if (starttls_proto == PROTO_FTP)
1044                 {
1045                 BIO *fbio = BIO_new(BIO_f_buffer());
1046                 BIO_push(fbio, sbio);
1047                 /* wait for multi-line response to end from FTP */
1048                 do
1049                         {
1050                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1051                         }
1052                 while (mbuf_len>3 && mbuf[3]=='-');
1053                 (void)BIO_flush(fbio);
1054                 BIO_pop(fbio);
1055                 BIO_free(fbio);
1056                 BIO_printf(sbio,"AUTH TLS\r\n");
1057                 BIO_read(sbio,sbuf,BUFSIZZ);
1058                 }
1059
1060         for (;;)
1061                 {
1062                 FD_ZERO(&readfds);
1063                 FD_ZERO(&writefds);
1064
1065                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1066                         {
1067                         in_init=1;
1068                         tty_on=0;
1069                         }
1070                 else
1071                         {
1072                         tty_on=1;
1073                         if (in_init)
1074                                 {
1075                                 in_init=0;
1076 #ifndef OPENSSL_NO_TLSEXT
1077                                 if (servername != NULL && !SSL_session_reused(con))
1078                                         {
1079                                         BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
1080                                         }
1081 #endif
1082                                 if (sess_out)
1083                                         {
1084                                         BIO *stmp = BIO_new_file(sess_out, "w");
1085                                         if (stmp)
1086                                                 {
1087                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1088                                                 BIO_free(stmp);
1089                                                 }
1090                                         else
1091                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1092                                         }
1093                                 print_stuff(bio_c_out,con,full_log);
1094                                 if (full_log > 0) full_log--;
1095
1096                                 if (starttls_proto)
1097                                         {
1098                                         BIO_printf(bio_err,"%s",mbuf);
1099                                         /* We don't need to know any more */
1100                                         starttls_proto = PROTO_OFF;
1101                                         }
1102
1103                                 if (reconnect)
1104                                         {
1105                                         reconnect--;
1106                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1107                                         SSL_shutdown(con);
1108                                         SSL_set_connect_state(con);
1109                                         SHUTDOWN(SSL_get_fd(con));
1110                                         goto re_start;
1111                                         }
1112                                 }
1113                         }
1114
1115                 ssl_pending = read_ssl && SSL_pending(con);
1116
1117                 if (!ssl_pending)
1118                         {
1119 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
1120                         if (tty_on)
1121                                 {
1122                                 if (read_tty)  openssl_fdset(fileno(stdin),&readfds);
1123                                 if (write_tty) openssl_fdset(fileno(stdout),&writefds);
1124                                 }
1125                         if (read_ssl)
1126                                 openssl_fdset(SSL_get_fd(con),&readfds);
1127                         if (write_ssl)
1128                                 openssl_fdset(SSL_get_fd(con),&writefds);
1129 #else
1130                         if(!tty_on || !write_tty) {
1131                                 if (read_ssl)
1132                                         openssl_fdset(SSL_get_fd(con),&readfds);
1133                                 if (write_ssl)
1134                                         openssl_fdset(SSL_get_fd(con),&writefds);
1135                         }
1136 #endif
1137 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1138                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1139
1140                         /* Note: under VMS with SOCKETSHR the second parameter
1141                          * is currently of type (int *) whereas under other
1142                          * systems it is (void *) if you don't have a cast it
1143                          * will choke the compiler: if you do have a cast then
1144                          * you can either go for (int *) or (void *).
1145                          */
1146 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1147                         /* Under Windows/DOS we make the assumption that we can
1148                          * always write to the tty: therefore if we need to
1149                          * write to the tty we just fall through. Otherwise
1150                          * we timeout the select every second and see if there
1151                          * are any keypresses. Note: this is a hack, in a proper
1152                          * Windows application we wouldn't do this.
1153                          */
1154                         i=0;
1155                         if(!write_tty) {
1156                                 if(read_tty) {
1157                                         tv.tv_sec = 1;
1158                                         tv.tv_usec = 0;
1159                                         i=select(width,(void *)&readfds,(void *)&writefds,
1160                                                  NULL,&tv);
1161 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1162                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1163 #else
1164                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1165 #endif
1166                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1167                                          NULL,NULL);
1168                         }
1169 #elif defined(OPENSSL_SYS_NETWARE)
1170                         if(!write_tty) {
1171                                 if(read_tty) {
1172                                         tv.tv_sec = 1;
1173                                         tv.tv_usec = 0;
1174                                         i=select(width,(void *)&readfds,(void *)&writefds,
1175                                                 NULL,&tv);
1176                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1177                                         NULL,NULL);
1178                         }
1179 #elif defined(OPENSSL_SYS_BEOS_R5)
1180                         /* Under BeOS-R5 the situation is similar to DOS */
1181                         i=0;
1182                         stdin_set = 0;
1183                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1184                         if(!write_tty) {
1185                                 if(read_tty) {
1186                                         tv.tv_sec = 1;
1187                                         tv.tv_usec = 0;
1188                                         i=select(width,(void *)&readfds,(void *)&writefds,
1189                                                  NULL,&tv);
1190                                         if (read(fileno(stdin), sbuf, 0) >= 0)
1191                                                 stdin_set = 1;
1192                                         if (!i && (stdin_set != 1 || !read_tty))
1193                                                 continue;
1194                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1195                                          NULL,NULL);
1196                         }
1197                         (void)fcntl(fileno(stdin), F_SETFL, 0);
1198 #else
1199                         i=select(width,(void *)&readfds,(void *)&writefds,
1200                                  NULL,NULL);
1201 #endif
1202                         if ( i < 0)
1203                                 {
1204                                 BIO_printf(bio_err,"bad select %d\n",
1205                                 get_last_socket_error());
1206                                 goto shut;
1207                                 /* goto end; */
1208                                 }
1209                         }
1210
1211                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1212                         {
1213                         k=SSL_write(con,&(cbuf[cbuf_off]),
1214                                 (unsigned int)cbuf_len);
1215                         switch (SSL_get_error(con,k))
1216                                 {
1217                         case SSL_ERROR_NONE:
1218                                 cbuf_off+=k;
1219                                 cbuf_len-=k;
1220                                 if (k <= 0) goto end;
1221                                 /* we have done a  write(con,NULL,0); */
1222                                 if (cbuf_len <= 0)
1223                                         {
1224                                         read_tty=1;
1225                                         write_ssl=0;
1226                                         }
1227                                 else /* if (cbuf_len > 0) */
1228                                         {
1229                                         read_tty=0;
1230                                         write_ssl=1;
1231                                         }
1232                                 break;
1233                         case SSL_ERROR_WANT_WRITE:
1234                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1235                                 write_ssl=1;
1236                                 read_tty=0;
1237                                 break;
1238                         case SSL_ERROR_WANT_READ:
1239                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1240                                 write_tty=0;
1241                                 read_ssl=1;
1242                                 write_ssl=0;
1243                                 break;
1244                         case SSL_ERROR_WANT_X509_LOOKUP:
1245                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1246                                 break;
1247                         case SSL_ERROR_ZERO_RETURN:
1248                                 if (cbuf_len != 0)
1249                                         {
1250                                         BIO_printf(bio_c_out,"shutdown\n");
1251                                         goto shut;
1252                                         }
1253                                 else
1254                                         {
1255                                         read_tty=1;
1256                                         write_ssl=0;
1257                                         break;
1258                                         }
1259
1260                         case SSL_ERROR_SYSCALL:
1261                                 if ((k != 0) || (cbuf_len != 0))
1262                                         {
1263                                         BIO_printf(bio_err,"write:errno=%d\n",
1264                                                 get_last_socket_error());
1265                                         goto shut;
1266                                         }
1267                                 else
1268                                         {
1269                                         read_tty=1;
1270                                         write_ssl=0;
1271                                         }
1272                                 break;
1273                         case SSL_ERROR_SSL:
1274                                 ERR_print_errors(bio_err);
1275                                 goto shut;
1276                                 }
1277                         }
1278 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1279                 /* Assume Windows/DOS/BeOS can always write */
1280                 else if (!ssl_pending && write_tty)
1281 #else
1282                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1283 #endif
1284                         {
1285 #ifdef CHARSET_EBCDIC
1286                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1287 #endif
1288                         i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
1289
1290                         if (i <= 0)
1291                                 {
1292                                 BIO_printf(bio_c_out,"DONE\n");
1293                                 goto shut;
1294                                 /* goto end; */
1295                                 }
1296
1297                         sbuf_len-=i;;
1298                         sbuf_off+=i;
1299                         if (sbuf_len <= 0)
1300                                 {
1301                                 read_ssl=1;
1302                                 write_tty=0;
1303                                 }
1304                         }
1305                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1306                         {
1307 #ifdef RENEG
1308 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1309 #endif
1310 #if 1
1311                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1312 #else
1313 /* Demo for pending and peek :-) */
1314                         k=SSL_read(con,sbuf,16);
1315 { char zbuf[10240];
1316 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1317 }
1318 #endif
1319
1320                         switch (SSL_get_error(con,k))
1321                                 {
1322                         case SSL_ERROR_NONE:
1323                                 if (k <= 0)
1324                                         goto end;
1325                                 sbuf_off=0;
1326                                 sbuf_len=k;
1327
1328                                 read_ssl=0;
1329                                 write_tty=1;
1330                                 break;
1331                         case SSL_ERROR_WANT_WRITE:
1332                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1333                                 write_ssl=1;
1334                                 read_tty=0;
1335                                 break;
1336                         case SSL_ERROR_WANT_READ:
1337                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1338                                 write_tty=0;
1339                                 read_ssl=1;
1340                                 if ((read_tty == 0) && (write_ssl == 0))
1341                                         write_ssl=1;
1342                                 break;
1343                         case SSL_ERROR_WANT_X509_LOOKUP:
1344                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1345                                 break;
1346                         case SSL_ERROR_SYSCALL:
1347                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
1348                                 goto shut;
1349                         case SSL_ERROR_ZERO_RETURN:
1350                                 BIO_printf(bio_c_out,"closed\n");
1351                                 goto shut;
1352                         case SSL_ERROR_SSL:
1353                                 ERR_print_errors(bio_err);
1354                                 goto shut;
1355                                 /* break; */
1356                                 }
1357                         }
1358
1359 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1360 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1361                 else if (_kbhit())
1362 #else
1363                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1364 #endif
1365 #elif defined (OPENSSL_SYS_NETWARE)
1366                 else if (_kbhit())
1367 #elif defined(OPENSSL_SYS_BEOS_R5)
1368                 else if (stdin_set)
1369 #else
1370                 else if (FD_ISSET(fileno(stdin),&readfds))
1371 #endif
1372                         {
1373                         if (crlf)
1374                                 {
1375                                 int j, lf_num;
1376
1377                                 i=raw_read_stdin(cbuf,BUFSIZZ/2);
1378                                 lf_num = 0;
1379                                 /* both loops are skipped when i <= 0 */
1380                                 for (j = 0; j < i; j++)
1381                                         if (cbuf[j] == '\n')
1382                                                 lf_num++;
1383                                 for (j = i-1; j >= 0; j--)
1384                                         {
1385                                         cbuf[j+lf_num] = cbuf[j];
1386                                         if (cbuf[j] == '\n')
1387                                                 {
1388                                                 lf_num--;
1389                                                 i++;
1390                                                 cbuf[j+lf_num] = '\r';
1391                                                 }
1392                                         }
1393                                 assert(lf_num == 0);
1394                                 }
1395                         else
1396                                 i=raw_read_stdin(cbuf,BUFSIZZ);
1397
1398                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1399                                 {
1400                                 BIO_printf(bio_err,"DONE\n");
1401                                 goto shut;
1402                                 }
1403
1404                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1405                                 {
1406                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1407                                 SSL_renegotiate(con);
1408                                 cbuf_len=0;
1409                                 }
1410                         else
1411                                 {
1412                                 cbuf_len=i;
1413                                 cbuf_off=0;
1414 #ifdef CHARSET_EBCDIC
1415                                 ebcdic2ascii(cbuf, cbuf, i);
1416 #endif
1417                                 }
1418
1419                         write_ssl=1;
1420                         read_tty=0;
1421                         }
1422                 }
1423 shut:
1424         if (in_init)
1425                 print_stuff(bio_c_out,con,full_log);
1426         SSL_shutdown(con);
1427         SHUTDOWN(SSL_get_fd(con));
1428         ret=0;
1429 end:
1430         if (con != NULL)
1431                 {
1432                 if (prexit != 0)
1433                         print_stuff(bio_c_out,con,1);
1434                 SSL_free(con);
1435                 }
1436         if (ctx != NULL) SSL_CTX_free(ctx);
1437         if (cert)
1438                 X509_free(cert);
1439         if (key)
1440                 EVP_PKEY_free(key);
1441         if (pass)
1442                 OPENSSL_free(pass);
1443         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1444         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1445         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1446         if (bio_c_out != NULL)
1447                 {
1448                 BIO_free(bio_c_out);
1449                 bio_c_out=NULL;
1450                 }
1451         apps_shutdown();
1452         OPENSSL_EXIT(ret);
1453         }
1454
1455
1456 static void print_stuff(BIO *bio, SSL *s, int full)
1457         {
1458         X509 *peer=NULL;
1459         char *p;
1460         static const char *space="                ";
1461         char buf[BUFSIZ];
1462         STACK_OF(X509) *sk;
1463         STACK_OF(X509_NAME) *sk2;
1464         SSL_CIPHER *c;
1465         X509_NAME *xn;
1466         int j,i;
1467 #ifndef OPENSSL_NO_COMP
1468         const COMP_METHOD *comp, *expansion;
1469 #endif
1470
1471         if (full)
1472                 {
1473                 int got_a_chain = 0;
1474
1475                 sk=SSL_get_peer_cert_chain(s);
1476                 if (sk != NULL)
1477                         {
1478                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1479
1480                         BIO_printf(bio,"---\nCertificate chain\n");
1481                         for (i=0; i<sk_X509_num(sk); i++)
1482                                 {
1483                                 X509_NAME_oneline(X509_get_subject_name(
1484                                         sk_X509_value(sk,i)),buf,sizeof buf);
1485                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1486                                 X509_NAME_oneline(X509_get_issuer_name(
1487                                         sk_X509_value(sk,i)),buf,sizeof buf);
1488                                 BIO_printf(bio,"   i:%s\n",buf);
1489                                 if (c_showcerts)
1490                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1491                                 }
1492                         }
1493
1494                 BIO_printf(bio,"---\n");
1495                 peer=SSL_get_peer_certificate(s);
1496                 if (peer != NULL)
1497                         {
1498                         BIO_printf(bio,"Server certificate\n");
1499                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1500                                 PEM_write_bio_X509(bio,peer);
1501                         X509_NAME_oneline(X509_get_subject_name(peer),
1502                                 buf,sizeof buf);
1503                         BIO_printf(bio,"subject=%s\n",buf);
1504                         X509_NAME_oneline(X509_get_issuer_name(peer),
1505                                 buf,sizeof buf);
1506                         BIO_printf(bio,"issuer=%s\n",buf);
1507                         }
1508                 else
1509                         BIO_printf(bio,"no peer certificate available\n");
1510
1511                 sk2=SSL_get_client_CA_list(s);
1512                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1513                         {
1514                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1515                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1516                                 {
1517                                 xn=sk_X509_NAME_value(sk2,i);
1518                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1519                                 BIO_write(bio,buf,strlen(buf));
1520                                 BIO_write(bio,"\n",1);
1521                                 }
1522                         }
1523                 else
1524                         {
1525                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1526                         }
1527                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1528                 if (p != NULL)
1529                         {
1530                         /* This works only for SSL 2.  In later protocol
1531                          * versions, the client does not know what other
1532                          * ciphers (in addition to the one to be used
1533                          * in the current connection) the server supports. */
1534
1535                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1536                         j=i=0;
1537                         while (*p)
1538                                 {
1539                                 if (*p == ':')
1540                                         {
1541                                         BIO_write(bio,space,15-j%25);
1542                                         i++;
1543                                         j=0;
1544                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1545                                         }
1546                                 else
1547                                         {
1548                                         BIO_write(bio,p,1);
1549                                         j++;
1550                                         }
1551                                 p++;
1552                                 }
1553                         BIO_write(bio,"\n",1);
1554                         }
1555
1556                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1557                         BIO_number_read(SSL_get_rbio(s)),
1558                         BIO_number_written(SSL_get_wbio(s)));
1559                 }
1560         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1561         c=SSL_get_current_cipher(s);
1562         BIO_printf(bio,"%s, Cipher is %s\n",
1563                 SSL_CIPHER_get_version(c),
1564                 SSL_CIPHER_get_name(c));
1565         if (peer != NULL) {
1566                 EVP_PKEY *pktmp;
1567                 pktmp = X509_get_pubkey(peer);
1568                 BIO_printf(bio,"Server public key is %d bit\n",
1569                                                          EVP_PKEY_bits(pktmp));
1570                 EVP_PKEY_free(pktmp);
1571         }
1572 #ifndef OPENSSL_NO_COMP
1573         comp=SSL_get_current_compression(s);
1574         expansion=SSL_get_current_expansion(s);
1575         BIO_printf(bio,"Compression: %s\n",
1576                 comp ? SSL_COMP_get_name(comp) : "NONE");
1577         BIO_printf(bio,"Expansion: %s\n",
1578                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1579 #endif
1580         SSL_SESSION_print(bio,SSL_get_session(s));
1581         BIO_printf(bio,"---\n");
1582         if (peer != NULL)
1583                 X509_free(peer);
1584         /* flush, or debugging output gets mixed with http response */
1585         (void)BIO_flush(bio);
1586         }
1587