apps/s_client.c

   1 /* apps/s_client.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111 /* ====================================================================
 112  * Copyright 2005 Nokia. All rights reserved.
 113  *
 114  * The portions of the attached software ("Contribution") is developed by
 115  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
 116  * license.
 117  *
 118  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
 119  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
 120  * support (see RFC 4279) to OpenSSL.
 121  *
 122  * No patent licenses or other rights except those expressly stated in
 123  * the OpenSSL open source license shall be deemed granted or received
 124  * expressly, by implication, estoppel, or otherwise.
 125  *
 126  * No assurances are provided by Nokia that the Contribution does not
 127  * infringe the patent or other intellectual property rights of any third
 128  * party or that the license provides you with all the necessary rights
 129  * to make use of the Contribution.
 130  *
 131  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
 132  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
 133  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
 134  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
 135  * OTHERWISE.
 136  */
 137
 138 #include <assert.h>
 139 #include <ctype.h>
 140 #include <stdio.h>
 141 #include <stdlib.h>
 142 #include <string.h>
 143 #include <openssl/e_os2.h>
 144 #ifdef OPENSSL_NO_STDIO
 145 #define APPS_WIN16
 146 #endif
 147
 148 /* With IPv6, it looks like Digital has mixed up the proper order of
 149    recursive header file inclusion, resulting in the compiler complaining
 150    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 151    is needed to have fileno() declared correctly...  So let's define u_int */
 152 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 153 #define __U_INT
 154 typedef unsigned int u_int;
 155 #endif
 156
 157 #define USE_SOCKETS
 158 #include "apps.h"
 159 #include <openssl/x509.h>
 160 #include <openssl/ssl.h>
 161 #include <openssl/err.h>
 162 #include <openssl/pem.h>
 163 #include <openssl/rand.h>
 164 #include <openssl/ocsp.h>
 165 #include "s_apps.h"
 166 #include "timeouts.h"
 167
 168 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 169 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 170 #undef FIONBIO
 171 #endif
 172
 173 #if defined(OPENSSL_SYS_BEOS_R5)
 174 #include <fcntl.h>
 175 #endif
 176
 177 #undef PROG
 178 #define PROG    s_client_main
 179
 180 /*#define SSL_HOST_NAME "www.netscape.com" */
 181 /*#define SSL_HOST_NAME "193.118.187.102" */
 182 #define SSL_HOST_NAME   "localhost"
 183
 184 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 185
 186 #undef BUFSIZZ
 187 #define BUFSIZZ 1024*8
 188
 189 extern int verify_depth;
 190 extern int verify_error;
 191 extern int verify_return_error;
 192
 193 #ifdef FIONBIO
 194 static int c_nbio=0;
 195 #endif
 196 static int c_Pause=0;
 197 static int c_debug=0;
 198 #ifndef OPENSSL_NO_TLSEXT
 199 static int c_tlsextdebug=0;
 200 static int c_status_req=0;
 201 #endif
 202 static int c_msg=0;
 203 static int c_showcerts=0;
 204
 205 static void sc_usage(void);
 206 static void print_stuff(BIO *berr,SSL *con,int full);
 207 static int ocsp_resp_cb(SSL *s, void *arg);
 208 static BIO *bio_c_out=NULL;
 209 static int c_quiet=0;
 210 static int c_ign_eof=0;
 211
 212 #ifndef OPENSSL_NO_PSK
 213 /* Default PSK identity and key */
 214 static char *psk_identity="Client_identity";
 215 static char *psk_key=NULL; /* by default PSK is not used */
 216
 217 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
 218         unsigned int max_identity_len, unsigned char *psk,
 219         unsigned int max_psk_len)
 220         {
 221         unsigned int psk_len = 0;
 222         int ret;
 223         BIGNUM *bn=NULL;
 224
 225         if (c_debug)
 226                 BIO_printf(bio_c_out, "psk_client_cb\n");
 227         if (!hint)
 228                 {
 229                 /* no ServerKeyExchange message*/
 230                 if (c_debug)
 231                         BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n");
 232                 }
 233         else if (c_debug)
 234                 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
 235
 236         /* lookup PSK identity and PSK key based on the given identity hint here */
 237         ret = BIO_snprintf(identity, max_identity_len, psk_identity);
 238         if (ret < 0 || (unsigned int)ret > max_identity_len)
 239                 goto out_err;
 240         if (c_debug)
 241                 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret);
 242         ret=BN_hex2bn(&bn, psk_key);
 243         if (!ret)
 244                 {
 245                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 246                 if (bn)
 247                         BN_free(bn);
 248                 return 0;
 249                 }
 250
 251         if ((unsigned int)BN_num_bytes(bn) > max_psk_len)
 252                 {
 253                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 254                         max_psk_len, BN_num_bytes(bn));
 255                 BN_free(bn);
 256                 return 0;
 257                 }
 258
 259         psk_len=BN_bn2bin(bn, psk);
 260         BN_free(bn);
 261         if (psk_len == 0)
 262                 goto out_err;
 263
 264         if (c_debug)
 265                 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
 266
 267         return psk_len;
 268  out_err:
 269         if (c_debug)
 270                 BIO_printf(bio_err, "Error in PSK client callback\n");
 271         return 0;
 272         }
 273 #endif
 274
 275 static void sc_usage(void)
 276         {
 277         BIO_printf(bio_err,"usage: s_client args\n");
 278         BIO_printf(bio_err,"\n");
 279         BIO_printf(bio_err," -host host     - use -connect instead\n");
 280         BIO_printf(bio_err," -port port     - use -connect instead\n");
 281         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 282
 283         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 284         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 285         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 286         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 287         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 288         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 289         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 290         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 291         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 292         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 293         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 294         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 295         BIO_printf(bio_err," -debug        - extra output\n");
 296 #ifdef WATT32
 297         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 298 #endif
 299         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 300         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 301         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 302 #ifdef FIONBIO
 303         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 304 #endif
 305         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 306         BIO_printf(bio_err," -quiet        - no s_client output\n");
 307         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 308 #ifndef OPENSSL_NO_PSK
 309         BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
 310         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 311 #endif
 312         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 313         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 314         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 315         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 316         BIO_printf(bio_err," -mtu          - set the MTU\n");
 317         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 318         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 319         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 320         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 321         BIO_printf(bio_err,"                 command to see what is available\n");
 322         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 323         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 324         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 325         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", and \"ftp\" are supported.\n");
 326 #ifndef OPENSSL_NO_ENGINE
 327         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 328 #endif
 329         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 330         BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
 331         BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
 332 #ifndef OPENSSL_NO_TLSEXT
 333         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 334         BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
 335         BIO_printf(bio_err," -status           - request certificate status from server\n");
 336         BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
 337 #endif
 338         }
 339
 340 #ifndef OPENSSL_NO_TLSEXT
 341
 342 /* This is a context that we pass to callbacks */
 343 typedef struct tlsextctx_st {
 344    BIO * biodebug;
 345    int ack;
 346 } tlsextctx;
 347
 348
 349 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 350         {
 351         tlsextctx * p = (tlsextctx *) arg;
 352         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 353         if (SSL_get_servername_type(s) != -1)
 354                 p->ack = !SSL_session_reused(s) && hn != NULL;
 355         else
 356                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 357
 358         return SSL_TLSEXT_ERR_OK;
 359         }
 360 #endif
 361
 362 enum
 363 {
 364         PROTO_OFF       = 0,
 365         PROTO_SMTP,
 366         PROTO_POP3,
 367         PROTO_IMAP,
 368         PROTO_FTP
 369 };
 370
 371 int MAIN(int, char **);
 372
 373 int MAIN(int argc, char **argv)
 374         {
 375         int off=0;
 376         SSL *con=NULL;
 377         X509_STORE *store = NULL;
 378         int s,k,width,state=0;
 379         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 380         int cbuf_len,cbuf_off;
 381         int sbuf_len,sbuf_off;
 382         fd_set readfds,writefds;
 383         short port=PORT;
 384         int full_log=1;
 385         char *host=SSL_HOST_NAME;
 386         char *cert_file=NULL,*key_file=NULL;
 387         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 388         char *passarg = NULL, *pass = NULL;
 389         X509 *cert = NULL;
 390         EVP_PKEY *key = NULL;
 391         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 392         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 393         int crlf=0;
 394         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 395         SSL_CTX *ctx=NULL;
 396         int ret=1,in_init=1,i,nbio_test=0;
 397         int starttls_proto = PROTO_OFF;
 398         int prexit = 0, vflags = 0;
 399         const SSL_METHOD *meth=NULL;
 400         int socket_type=SOCK_STREAM;
 401         BIO *sbio;
 402         char *inrand=NULL;
 403         int mbuf_len=0;
 404 #ifndef OPENSSL_NO_ENGINE
 405         char *engine_id=NULL;
 406         ENGINE *e=NULL;
 407 #endif
 408 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
 409         struct timeval tv;
 410 #if defined(OPENSSL_SYS_BEOS_R5)
 411         int stdin_set = 0;
 412 #endif
 413 #endif
 414
 415 #ifndef OPENSSL_NO_TLSEXT
 416         char *servername = NULL;
 417         tlsextctx tlsextcbp =
 418         {NULL,0};
 419 #endif
 420         char *sess_in = NULL;
 421         char *sess_out = NULL;
 422         struct sockaddr peer;
 423         int peerlen = sizeof(peer);
 424         int enable_timeouts = 0 ;
 425         long socket_mtu = 0;
 426
 427 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 428         meth=SSLv23_client_method();
 429 #elif !defined(OPENSSL_NO_SSL3)
 430         meth=SSLv3_client_method();
 431 #elif !defined(OPENSSL_NO_SSL2)
 432         meth=SSLv2_client_method();
 433 #endif
 434
 435         apps_startup();
 436         c_Pause=0;
 437         c_quiet=0;
 438         c_ign_eof=0;
 439         c_debug=0;
 440         c_msg=0;
 441         c_showcerts=0;
 442
 443         if (bio_err == NULL)
 444                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 445
 446         if (!load_config(bio_err, NULL))
 447                 goto end;
 448
 449         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 450                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 451                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 452                 {
 453                 BIO_printf(bio_err,"out of memory\n");
 454                 goto end;
 455                 }
 456
 457         verify_depth=0;
 458         verify_error=X509_V_OK;
 459 #ifdef FIONBIO
 460         c_nbio=0;
 461 #endif
 462
 463         argc--;
 464         argv++;
 465         while (argc >= 1)
 466                 {
 467                 if      (strcmp(*argv,"-host") == 0)
 468                         {
 469                         if (--argc < 1) goto bad;
 470                         host= *(++argv);
 471                         }
 472                 else if (strcmp(*argv,"-port") == 0)
 473                         {
 474                         if (--argc < 1) goto bad;
 475                         port=atoi(*(++argv));
 476                         if (port == 0) goto bad;
 477                         }
 478                 else if (strcmp(*argv,"-connect") == 0)
 479                         {
 480                         if (--argc < 1) goto bad;
 481                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 482                                 goto bad;
 483                         }
 484                 else if (strcmp(*argv,"-verify") == 0)
 485                         {
 486                         verify=SSL_VERIFY_PEER;
 487                         if (--argc < 1) goto bad;
 488                         verify_depth=atoi(*(++argv));
 489                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 490                         }
 491                 else if (strcmp(*argv,"-cert") == 0)
 492                         {
 493                         if (--argc < 1) goto bad;
 494                         cert_file= *(++argv);
 495                         }
 496                 else if (strcmp(*argv,"-sess_out") == 0)
 497                         {
 498                         if (--argc < 1) goto bad;
 499                         sess_out = *(++argv);
 500                         }
 501                 else if (strcmp(*argv,"-sess_in") == 0)
 502                         {
 503                         if (--argc < 1) goto bad;
 504                         sess_in = *(++argv);
 505                         }
 506                 else if (strcmp(*argv,"-certform") == 0)
 507                         {
 508                         if (--argc < 1) goto bad;
 509                         cert_format = str2fmt(*(++argv));
 510                         }
 511                 else if (strcmp(*argv,"-crl_check") == 0)
 512                         vflags |= X509_V_FLAG_CRL_CHECK;
 513                 else if (strcmp(*argv,"-crl_check_all") == 0)
 514                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 515                 else if (strcmp(*argv,"-verify_return_error") == 0)
 516                         verify_return_error = 1;
 517                 else if (strcmp(*argv,"-prexit") == 0)
 518                         prexit=1;
 519                 else if (strcmp(*argv,"-crlf") == 0)
 520                         crlf=1;
 521                 else if (strcmp(*argv,"-quiet") == 0)
 522                         {
 523                         c_quiet=1;
 524                         c_ign_eof=1;
 525                         }
 526                 else if (strcmp(*argv,"-ign_eof") == 0)
 527                         c_ign_eof=1;
 528                 else if (strcmp(*argv,"-pause") == 0)
 529                         c_Pause=1;
 530                 else if (strcmp(*argv,"-debug") == 0)
 531                         c_debug=1;
 532 #ifndef OPENSSL_NO_TLSEXT
 533                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 534                         c_tlsextdebug=1;
 535                 else if (strcmp(*argv,"-status") == 0)
 536                         c_status_req=1;
 537 #endif
 538 #ifdef WATT32
 539                 else if (strcmp(*argv,"-wdebug") == 0)
 540                         dbug_init();
 541 #endif
 542                 else if (strcmp(*argv,"-msg") == 0)
 543                         c_msg=1;
 544                 else if (strcmp(*argv,"-showcerts") == 0)
 545                         c_showcerts=1;
 546                 else if (strcmp(*argv,"-nbio_test") == 0)
 547                         nbio_test=1;
 548                 else if (strcmp(*argv,"-state") == 0)
 549                         state=1;
 550 #ifndef OPENSSL_NO_PSK
 551                 else if (strcmp(*argv,"-psk_identity") == 0)
 552                         {
 553                         if (--argc < 1) goto bad;
 554                         psk_identity=*(++argv);
 555                         }
 556                 else if (strcmp(*argv,"-psk") == 0)
 557                         {
 558                         size_t j;
 559
 560                         if (--argc < 1) goto bad;
 561                         psk_key=*(++argv);
 562                         for (j = 0; j < strlen(psk_key); j++)
 563                                 {
 564                                 if (isxdigit((int)psk_key[j]))
 565                                         continue;
 566                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
 567                                 goto bad;
 568                                 }
 569                         }
 570 #endif
 571 #ifndef OPENSSL_NO_SSL2
 572                 else if (strcmp(*argv,"-ssl2") == 0)
 573                         meth=SSLv2_client_method();
 574 #endif
 575 #ifndef OPENSSL_NO_SSL3
 576                 else if (strcmp(*argv,"-ssl3") == 0)
 577                         meth=SSLv3_client_method();
 578 #endif
 579 #ifndef OPENSSL_NO_TLS1
 580                 else if (strcmp(*argv,"-tls1") == 0)
 581                         meth=TLSv1_client_method();
 582 #endif
 583 #ifndef OPENSSL_NO_DTLS1
 584                 else if (strcmp(*argv,"-dtls1") == 0)
 585                         {
 586                         meth=DTLSv1_client_method();
 587                         socket_type=SOCK_DGRAM;
 588                         }
 589                 else if (strcmp(*argv,"-timeout") == 0)
 590                         enable_timeouts=1;
 591                 else if (strcmp(*argv,"-mtu") == 0)
 592                         {
 593                         if (--argc < 1) goto bad;
 594                         socket_mtu = atol(*(++argv));
 595                         }
 596 #endif
 597                 else if (strcmp(*argv,"-bugs") == 0)
 598                         bugs=1;
 599                 else if (strcmp(*argv,"-keyform") == 0)
 600                         {
 601                         if (--argc < 1) goto bad;
 602                         key_format = str2fmt(*(++argv));
 603                         }
 604                 else if (strcmp(*argv,"-pass") == 0)
 605                         {
 606                         if (--argc < 1) goto bad;
 607                         passarg = *(++argv);
 608                         }
 609                 else if (strcmp(*argv,"-key") == 0)
 610                         {
 611                         if (--argc < 1) goto bad;
 612                         key_file= *(++argv);
 613                         }
 614                 else if (strcmp(*argv,"-reconnect") == 0)
 615                         {
 616                         reconnect=5;
 617                         }
 618                 else if (strcmp(*argv,"-CApath") == 0)
 619                         {
 620                         if (--argc < 1) goto bad;
 621                         CApath= *(++argv);
 622                         }
 623                 else if (strcmp(*argv,"-CAfile") == 0)
 624                         {
 625                         if (--argc < 1) goto bad;
 626                         CAfile= *(++argv);
 627                         }
 628                 else if (strcmp(*argv,"-no_tls1") == 0)
 629                         off|=SSL_OP_NO_TLSv1;
 630                 else if (strcmp(*argv,"-no_ssl3") == 0)
 631                         off|=SSL_OP_NO_SSLv3;
 632                 else if (strcmp(*argv,"-no_ssl2") == 0)
 633                         off|=SSL_OP_NO_SSLv2;
 634                 else if (strcmp(*argv,"-no_comp") == 0)
 635                         { off|=SSL_OP_NO_COMPRESSION; }
 636 #ifndef OPENSSL_NO_TLSEXT
 637                 else if (strcmp(*argv,"-no_ticket") == 0)
 638                         { off|=SSL_OP_NO_TICKET; }
 639 #endif
 640                 else if (strcmp(*argv,"-serverpref") == 0)
 641                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 642                 else if (strcmp(*argv,"-cipher") == 0)
 643                         {
 644                         if (--argc < 1) goto bad;
 645                         cipher= *(++argv);
 646                         }
 647 #ifdef FIONBIO
 648                 else if (strcmp(*argv,"-nbio") == 0)
 649                         { c_nbio=1; }
 650 #endif
 651                 else if (strcmp(*argv,"-starttls") == 0)
 652                         {
 653                         if (--argc < 1) goto bad;
 654                         ++argv;
 655                         if (strcmp(*argv,"smtp") == 0)
 656                                 starttls_proto = PROTO_SMTP;
 657                         else if (strcmp(*argv,"pop3") == 0)
 658                                 starttls_proto = PROTO_POP3;
 659                         else if (strcmp(*argv,"imap") == 0)
 660                                 starttls_proto = PROTO_IMAP;
 661                         else if (strcmp(*argv,"ftp") == 0)
 662                                 starttls_proto = PROTO_FTP;
 663                         else
 664                                 goto bad;
 665                         }
 666 #ifndef OPENSSL_NO_ENGINE
 667                 else if (strcmp(*argv,"-engine") == 0)
 668                         {
 669                         if (--argc < 1) goto bad;
 670                         engine_id = *(++argv);
 671                         }
 672 #endif
 673                 else if (strcmp(*argv,"-rand") == 0)
 674                         {
 675                         if (--argc < 1) goto bad;
 676                         inrand= *(++argv);
 677                         }
 678 #ifndef OPENSSL_NO_TLSEXT
 679                 else if (strcmp(*argv,"-servername") == 0)
 680                         {
 681                         if (--argc < 1) goto bad;
 682                         servername= *(++argv);
 683                         /* meth=TLSv1_client_method(); */
 684                         }
 685 #endif
 686                 else
 687                         {
 688                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 689                         badop=1;
 690                         break;
 691                         }
 692                 argc--;
 693                 argv++;
 694                 }
 695         if (badop)
 696                 {
 697 bad:
 698                 sc_usage();
 699                 goto end;
 700                 }
 701
 702         OpenSSL_add_ssl_algorithms();
 703         SSL_load_error_strings();
 704
 705 #ifndef OPENSSL_NO_ENGINE
 706         e = setup_engine(bio_err, engine_id, 1);
 707 #endif
 708         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
 709                 {
 710                 BIO_printf(bio_err, "Error getting password\n");
 711                 goto end;
 712                 }
 713
 714         if (key_file == NULL)
 715                 key_file = cert_file;
 716
 717
 718         if (key_file)
 719
 720                 {
 721
 722                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
 723                                "client certificate private key file");
 724                 if (!key)
 725                         {
 726                         ERR_print_errors(bio_err);
 727                         goto end;
 728                         }
 729
 730                 }
 731
 732         if (cert_file)
 733
 734                 {
 735                 cert = load_cert(bio_err,cert_file,cert_format,
 736                                 NULL, e, "client certificate file");
 737
 738                 if (!cert)
 739                         {
 740                         ERR_print_errors(bio_err);
 741                         goto end;
 742                         }
 743                 }
 744
 745         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 746                 && !RAND_status())
 747                 {
 748                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 749                 }
 750         if (inrand != NULL)
 751                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 752                         app_RAND_load_files(inrand));
 753
 754         if (bio_c_out == NULL)
 755                 {
 756                 if (c_quiet && !c_debug && !c_msg)
 757                         {
 758                         bio_c_out=BIO_new(BIO_s_null());
 759                         }
 760                 else
 761                         {
 762                         if (bio_c_out == NULL)
 763                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 764                         }
 765                 }
 766
 767         ctx=SSL_CTX_new(meth);
 768         if (ctx == NULL)
 769                 {
 770                 ERR_print_errors(bio_err);
 771                 goto end;
 772                 }
 773
 774 #ifndef OPENSSL_NO_PSK
 775         if (psk_key != NULL)
 776                 {
 777                 if (c_debug)
 778                         BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
 779                 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
 780                 }
 781 #endif
 782         if (bugs)
 783                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 784         else
 785                 SSL_CTX_set_options(ctx,off);
 786         /* DTLS: partial reads end up discarding unread UDP bytes :-(
 787          * Setting read ahead solves this problem.
 788          */
 789         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
 790
 791         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 792         if (cipher != NULL)
 793                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 794                 BIO_printf(bio_err,"error setting cipher list\n");
 795                 ERR_print_errors(bio_err);
 796                 goto end;
 797         }
 798 #if 0
 799         else
 800                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 801 #endif
 802
 803         SSL_CTX_set_verify(ctx,verify,verify_callback);
 804         if (!set_cert_key_stuff(ctx,cert,key))
 805                 goto end;
 806
 807         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 808                 (!SSL_CTX_set_default_verify_paths(ctx)))
 809                 {
 810                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 811                 ERR_print_errors(bio_err);
 812                 /* goto end; */
 813                 }
 814
 815         store = SSL_CTX_get_cert_store(ctx);
 816         X509_STORE_set_flags(store, vflags);
 817 #ifndef OPENSSL_NO_TLSEXT
 818         if (servername != NULL)
 819                 {
 820                 tlsextcbp.biodebug = bio_err;
 821                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
 822                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
 823                 }
 824 #endif
 825
 826         con=SSL_new(ctx);
 827         if (sess_in)
 828                 {
 829                 SSL_SESSION *sess;
 830                 BIO *stmp = BIO_new_file(sess_in, "r");
 831                 if (!stmp)
 832                         {
 833                         BIO_printf(bio_err, "Can't open session file %s\n",
 834                                                 sess_in);
 835                         ERR_print_errors(bio_err);
 836                         goto end;
 837                         }
 838                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
 839                 BIO_free(stmp);
 840                 if (!sess)
 841                         {
 842                         BIO_printf(bio_err, "Can't open session file %s\n",
 843                                                 sess_in);
 844                         ERR_print_errors(bio_err);
 845                         goto end;
 846                         }
 847                 SSL_set_session(con, sess);
 848                 SSL_SESSION_free(sess);
 849                 }
 850 #ifndef OPENSSL_NO_TLSEXT
 851         if (servername != NULL)
 852                 {
 853                 if (!SSL_set_tlsext_host_name(con,servername))
 854                         {
 855                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
 856                         ERR_print_errors(bio_err);
 857                         goto end;
 858                         }
 859                 }
 860 #endif
 861 #ifndef OPENSSL_NO_KRB5
 862         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 863                 {
 864                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 865                 }
 866 #endif  /* OPENSSL_NO_KRB5  */
 867 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 868 #if 0
 869 #ifdef TLSEXT_TYPE_opaque_prf_input
 870         SSL_set_tlsext_opaque_prf_input(con, "Test client", 11);
 871 #endif
 872 #endif
 873
 874 re_start:
 875
 876         if (init_client(&s,host,port,socket_type) == 0)
 877                 {
 878                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 879                 SHUTDOWN(s);
 880                 goto end;
 881                 }
 882         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 883
 884 #ifdef FIONBIO
 885         if (c_nbio)
 886                 {
 887                 unsigned long l=1;
 888                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 889                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 890                         {
 891                         ERR_print_errors(bio_err);
 892                         goto end;
 893                         }
 894                 }
 895 #endif
 896         if (c_Pause & 0x01) con->debug=1;
 897
 898         if ( SSL_version(con) == DTLS1_VERSION)
 899                 {
 900                 struct timeval timeout;
 901
 902                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
 903                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
 904                         {
 905                         BIO_printf(bio_err, "getsockname:errno=%d\n",
 906                                 get_last_socket_error());
 907                         SHUTDOWN(s);
 908                         goto end;
 909                         }
 910
 911                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
 912
 913                 if (enable_timeouts)
 914                         {
 915                         timeout.tv_sec = 0;
 916                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
 917                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
 918
 919                         timeout.tv_sec = 0;
 920                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
 921                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
 922                         }
 923
 924                 if (socket_mtu > 0)
 925                         {
 926                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
 927                         SSL_set_mtu(con, socket_mtu);
 928                         }
 929                 else
 930                         /* want to do MTU discovery */
 931                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
 932                 }
 933         else
 934                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
 935
 936
 937
 938         if (nbio_test)
 939                 {
 940                 BIO *test;
 941
 942                 test=BIO_new(BIO_f_nbio_test());
 943                 sbio=BIO_push(test,sbio);
 944                 }
 945
 946         if (c_debug)
 947                 {
 948                 con->debug=1;
 949                 BIO_set_callback(sbio,bio_dump_callback);
 950                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
 951                 }
 952         if (c_msg)
 953                 {
 954                 SSL_set_msg_callback(con, msg_cb);
 955                 SSL_set_msg_callback_arg(con, bio_c_out);
 956                 }
 957 #ifndef OPENSSL_NO_TLSEXT
 958         if (c_tlsextdebug)
 959                 {
 960                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
 961                 SSL_set_tlsext_debug_arg(con, bio_c_out);
 962                 }
 963         if (c_status_req)
 964                 {
 965                 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
 966                 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
 967                 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
 968 #if 0
 969 {
 970 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
 971 OCSP_RESPID *id = OCSP_RESPID_new();
 972 id->value.byKey = ASN1_OCTET_STRING_new();
 973 id->type = V_OCSP_RESPID_KEY;
 974 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
 975 sk_OCSP_RESPID_push(ids, id);
 976 SSL_set_tlsext_status_ids(con, ids);
 977 }
 978 #endif
 979                 }
 980 #endif
 981
 982         SSL_set_bio(con,sbio,sbio);
 983         SSL_set_connect_state(con);
 984
 985         /* ok, lets connect */
 986         width=SSL_get_fd(con)+1;
 987
 988         read_tty=1;
 989         write_tty=0;
 990         tty_on=0;
 991         read_ssl=1;
 992         write_ssl=1;
 993
 994         cbuf_len=0;
 995         cbuf_off=0;
 996         sbuf_len=0;
 997         sbuf_off=0;
 998
 999         /* This is an ugly hack that does a lot of assumptions */
1000         /* We do have to handle multi-line responses which may come
1001            in a single packet or not. We therefore have to use
1002            BIO_gets() which does need a buffering BIO. So during
1003            the initial chitchat we do push a buffering BIO into the
1004            chain that is removed again later on to not disturb the
1005            rest of the s_client operation. */
1006         if (starttls_proto == PROTO_SMTP)
1007                 {
1008                 int foundit=0;
1009                 BIO *fbio = BIO_new(BIO_f_buffer());
1010                 BIO_push(fbio, sbio);
1011                 /* wait for multi-line response to end from SMTP */
1012                 do
1013                         {
1014                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1015                         }
1016                 while (mbuf_len>3 && mbuf[3]=='-');
1017                 /* STARTTLS command requires EHLO... */
1018                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
1019                 (void)BIO_flush(fbio);
1020                 /* wait for multi-line response to end EHLO SMTP response */
1021                 do
1022                         {
1023                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1024                         if (strstr(mbuf,"STARTTLS"))
1025                                 foundit=1;
1026                         }
1027                 while (mbuf_len>3 && mbuf[3]=='-');
1028                 (void)BIO_flush(fbio);
1029                 BIO_pop(fbio);
1030                 BIO_free(fbio);
1031                 if (!foundit)
1032                         BIO_printf(bio_err,
1033                                    "didn't found starttls in server response,"
1034                                    " try anyway...\n");
1035                 BIO_printf(sbio,"STARTTLS\r\n");
1036                 BIO_read(sbio,sbuf,BUFSIZZ);
1037                 }
1038         else if (starttls_proto == PROTO_POP3)
1039                 {
1040                 BIO_read(sbio,mbuf,BUFSIZZ);
1041                 BIO_printf(sbio,"STLS\r\n");
1042                 BIO_read(sbio,sbuf,BUFSIZZ);
1043                 }
1044         else if (starttls_proto == PROTO_IMAP)
1045                 {
1046                 int foundit=0;
1047                 BIO *fbio = BIO_new(BIO_f_buffer());
1048                 BIO_push(fbio, sbio);
1049                 BIO_gets(fbio,mbuf,BUFSIZZ);
1050                 /* STARTTLS command requires CAPABILITY... */
1051                 BIO_printf(fbio,". CAPABILITY\r\n");
1052                 (void)BIO_flush(fbio);
1053                 /* wait for multi-line CAPABILITY response */
1054                 do
1055                         {
1056                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1057                         if (strstr(mbuf,"STARTTLS"))
1058                                 foundit=1;
1059                         }
1060                 while (mbuf_len>3 && mbuf[0]!='.');
1061                 (void)BIO_flush(fbio);
1062                 BIO_pop(fbio);
1063                 BIO_free(fbio);
1064                 if (!foundit)
1065                         BIO_printf(bio_err,
1066                                    "didn't found STARTTLS in server response,"
1067                                    " try anyway...\n");
1068                 BIO_printf(sbio,". STARTTLS\r\n");
1069                 BIO_read(sbio,sbuf,BUFSIZZ);
1070                 }
1071         else if (starttls_proto == PROTO_FTP)
1072                 {
1073                 BIO *fbio = BIO_new(BIO_f_buffer());
1074                 BIO_push(fbio, sbio);
1075                 /* wait for multi-line response to end from FTP */
1076                 do
1077                         {
1078                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1079                         }
1080                 while (mbuf_len>3 && mbuf[3]=='-');
1081                 (void)BIO_flush(fbio);
1082                 BIO_pop(fbio);
1083                 BIO_free(fbio);
1084                 BIO_printf(sbio,"AUTH TLS\r\n");
1085                 BIO_read(sbio,sbuf,BUFSIZZ);
1086                 }
1087
1088         for (;;)
1089                 {
1090                 FD_ZERO(&readfds);
1091                 FD_ZERO(&writefds);
1092
1093                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1094                         {
1095                         in_init=1;
1096                         tty_on=0;
1097                         }
1098                 else
1099                         {
1100                         tty_on=1;
1101                         if (in_init)
1102                                 {
1103                                 in_init=0;
1104 #if 0 /* This test doesn't really work as intended (needs to be fixed) */
1105 #ifndef OPENSSL_NO_TLSEXT
1106                                 if (servername != NULL && !SSL_session_reused(con))
1107                                         {
1108                                         BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
1109                                         }
1110 #endif
1111 #endif
1112                                 if (sess_out)
1113                                         {
1114                                         BIO *stmp = BIO_new_file(sess_out, "w");
1115                                         if (stmp)
1116                                                 {
1117                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1118                                                 BIO_free(stmp);
1119                                                 }
1120                                         else
1121                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1122                                         }
1123                                 print_stuff(bio_c_out,con,full_log);
1124                                 if (full_log > 0) full_log--;
1125
1126                                 if (starttls_proto)
1127                                         {
1128                                         BIO_printf(bio_err,"%s",mbuf);
1129                                         /* We don't need to know any more */
1130                                         starttls_proto = PROTO_OFF;
1131                                         }
1132
1133                                 if (reconnect)
1134                                         {
1135                                         reconnect--;
1136                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1137                                         SSL_shutdown(con);
1138                                         SSL_set_connect_state(con);
1139                                         SHUTDOWN(SSL_get_fd(con));
1140                                         goto re_start;
1141                                         }
1142                                 }
1143                         }
1144
1145                 ssl_pending = read_ssl && SSL_pending(con);
1146
1147                 if (!ssl_pending)
1148                         {
1149 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
1150                         if (tty_on)
1151                                 {
1152                                 if (read_tty)  openssl_fdset(fileno(stdin),&readfds);
1153                                 if (write_tty) openssl_fdset(fileno(stdout),&writefds);
1154                                 }
1155                         if (read_ssl)
1156                                 openssl_fdset(SSL_get_fd(con),&readfds);
1157                         if (write_ssl)
1158                                 openssl_fdset(SSL_get_fd(con),&writefds);
1159 #else
1160                         if(!tty_on || !write_tty) {
1161                                 if (read_ssl)
1162                                         openssl_fdset(SSL_get_fd(con),&readfds);
1163                                 if (write_ssl)
1164                                         openssl_fdset(SSL_get_fd(con),&writefds);
1165                         }
1166 #endif
1167 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1168                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1169
1170                         /* Note: under VMS with SOCKETSHR the second parameter
1171                          * is currently of type (int *) whereas under other
1172                          * systems it is (void *) if you don't have a cast it
1173                          * will choke the compiler: if you do have a cast then
1174                          * you can either go for (int *) or (void *).
1175                          */
1176 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1177                         /* Under Windows/DOS we make the assumption that we can
1178                          * always write to the tty: therefore if we need to
1179                          * write to the tty we just fall through. Otherwise
1180                          * we timeout the select every second and see if there
1181                          * are any keypresses. Note: this is a hack, in a proper
1182                          * Windows application we wouldn't do this.
1183                          */
1184                         i=0;
1185                         if(!write_tty) {
1186                                 if(read_tty) {
1187                                         tv.tv_sec = 1;
1188                                         tv.tv_usec = 0;
1189                                         i=select(width,(void *)&readfds,(void *)&writefds,
1190                                                  NULL,&tv);
1191 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1192                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1193 #else
1194                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1195 #endif
1196                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1197                                          NULL,NULL);
1198                         }
1199 #elif defined(OPENSSL_SYS_NETWARE)
1200                         if(!write_tty) {
1201                                 if(read_tty) {
1202                                         tv.tv_sec = 1;
1203                                         tv.tv_usec = 0;
1204                                         i=select(width,(void *)&readfds,(void *)&writefds,
1205                                                 NULL,&tv);
1206                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1207                                         NULL,NULL);
1208                         }
1209 #elif defined(OPENSSL_SYS_BEOS_R5)
1210                         /* Under BeOS-R5 the situation is similar to DOS */
1211                         i=0;
1212                         stdin_set = 0;
1213                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1214                         if(!write_tty) {
1215                                 if(read_tty) {
1216                                         tv.tv_sec = 1;
1217                                         tv.tv_usec = 0;
1218                                         i=select(width,(void *)&readfds,(void *)&writefds,
1219                                                  NULL,&tv);
1220                                         if (read(fileno(stdin), sbuf, 0) >= 0)
1221                                                 stdin_set = 1;
1222                                         if (!i && (stdin_set != 1 || !read_tty))
1223                                                 continue;
1224                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1225                                          NULL,NULL);
1226                         }
1227                         (void)fcntl(fileno(stdin), F_SETFL, 0);
1228 #else
1229                         i=select(width,(void *)&readfds,(void *)&writefds,
1230                                  NULL,NULL);
1231 #endif
1232                         if ( i < 0)
1233                                 {
1234                                 BIO_printf(bio_err,"bad select %d\n",
1235                                 get_last_socket_error());
1236                                 goto shut;
1237                                 /* goto end; */
1238                                 }
1239                         }
1240
1241                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1242                         {
1243                         k=SSL_write(con,&(cbuf[cbuf_off]),
1244                                 (unsigned int)cbuf_len);
1245                         switch (SSL_get_error(con,k))
1246                                 {
1247                         case SSL_ERROR_NONE:
1248                                 cbuf_off+=k;
1249                                 cbuf_len-=k;
1250                                 if (k <= 0) goto end;
1251                                 /* we have done a  write(con,NULL,0); */
1252                                 if (cbuf_len <= 0)
1253                                         {
1254                                         read_tty=1;
1255                                         write_ssl=0;
1256                                         }
1257                                 else /* if (cbuf_len > 0) */
1258                                         {
1259                                         read_tty=0;
1260                                         write_ssl=1;
1261                                         }
1262                                 break;
1263                         case SSL_ERROR_WANT_WRITE:
1264                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1265                                 write_ssl=1;
1266                                 read_tty=0;
1267                                 break;
1268                         case SSL_ERROR_WANT_READ:
1269                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1270                                 write_tty=0;
1271                                 read_ssl=1;
1272                                 write_ssl=0;
1273                                 break;
1274                         case SSL_ERROR_WANT_X509_LOOKUP:
1275                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1276                                 break;
1277                         case SSL_ERROR_ZERO_RETURN:
1278                                 if (cbuf_len != 0)
1279                                         {
1280                                         BIO_printf(bio_c_out,"shutdown\n");
1281                                         goto shut;
1282                                         }
1283                                 else
1284                                         {
1285                                         read_tty=1;
1286                                         write_ssl=0;
1287                                         break;
1288                                         }
1289
1290                         case SSL_ERROR_SYSCALL:
1291                                 if ((k != 0) || (cbuf_len != 0))
1292                                         {
1293                                         BIO_printf(bio_err,"write:errno=%d\n",
1294                                                 get_last_socket_error());
1295                                         goto shut;
1296                                         }
1297                                 else
1298                                         {
1299                                         read_tty=1;
1300                                         write_ssl=0;
1301                                         }
1302                                 break;
1303                         case SSL_ERROR_SSL:
1304                                 ERR_print_errors(bio_err);
1305                                 goto shut;
1306                                 }
1307                         }
1308 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1309                 /* Assume Windows/DOS/BeOS can always write */
1310                 else if (!ssl_pending && write_tty)
1311 #else
1312                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1313 #endif
1314                         {
1315 #ifdef CHARSET_EBCDIC
1316                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1317 #endif
1318                         i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
1319
1320                         if (i <= 0)
1321                                 {
1322                                 BIO_printf(bio_c_out,"DONE\n");
1323                                 goto shut;
1324                                 /* goto end; */
1325                                 }
1326
1327                         sbuf_len-=i;;
1328                         sbuf_off+=i;
1329                         if (sbuf_len <= 0)
1330                                 {
1331                                 read_ssl=1;
1332                                 write_tty=0;
1333                                 }
1334                         }
1335                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1336                         {
1337 #ifdef RENEG
1338 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1339 #endif
1340 #if 1
1341                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1342 #else
1343 /* Demo for pending and peek :-) */
1344                         k=SSL_read(con,sbuf,16);
1345 { char zbuf[10240];
1346 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1347 }
1348 #endif
1349
1350                         switch (SSL_get_error(con,k))
1351                                 {
1352                         case SSL_ERROR_NONE:
1353                                 if (k <= 0)
1354                                         goto end;
1355                                 sbuf_off=0;
1356                                 sbuf_len=k;
1357
1358                                 read_ssl=0;
1359                                 write_tty=1;
1360                                 break;
1361                         case SSL_ERROR_WANT_WRITE:
1362                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1363                                 write_ssl=1;
1364                                 read_tty=0;
1365                                 break;
1366                         case SSL_ERROR_WANT_READ:
1367                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1368                                 write_tty=0;
1369                                 read_ssl=1;
1370                                 if ((read_tty == 0) && (write_ssl == 0))
1371                                         write_ssl=1;
1372                                 break;
1373                         case SSL_ERROR_WANT_X509_LOOKUP:
1374                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1375                                 break;
1376                         case SSL_ERROR_SYSCALL:
1377                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
1378                                 goto shut;
1379                         case SSL_ERROR_ZERO_RETURN:
1380                                 BIO_printf(bio_c_out,"closed\n");
1381                                 goto shut;
1382                         case SSL_ERROR_SSL:
1383                                 ERR_print_errors(bio_err);
1384                                 goto shut;
1385                                 /* break; */
1386                                 }
1387                         }
1388
1389 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1390 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1391                 else if (_kbhit())
1392 #else
1393                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1394 #endif
1395 #elif defined (OPENSSL_SYS_NETWARE)
1396                 else if (_kbhit())
1397 #elif defined(OPENSSL_SYS_BEOS_R5)
1398                 else if (stdin_set)
1399 #else
1400                 else if (FD_ISSET(fileno(stdin),&readfds))
1401 #endif
1402                         {
1403                         if (crlf)
1404                                 {
1405                                 int j, lf_num;
1406
1407                                 i=raw_read_stdin(cbuf,BUFSIZZ/2);
1408                                 lf_num = 0;
1409                                 /* both loops are skipped when i <= 0 */
1410                                 for (j = 0; j < i; j++)
1411                                         if (cbuf[j] == '\n')
1412                                                 lf_num++;
1413                                 for (j = i-1; j >= 0; j--)
1414                                         {
1415                                         cbuf[j+lf_num] = cbuf[j];
1416                                         if (cbuf[j] == '\n')
1417                                                 {
1418                                                 lf_num--;
1419                                                 i++;
1420                                                 cbuf[j+lf_num] = '\r';
1421                                                 }
1422                                         }
1423                                 assert(lf_num == 0);
1424                                 }
1425                         else
1426                                 i=raw_read_stdin(cbuf,BUFSIZZ);
1427
1428                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1429                                 {
1430                                 BIO_printf(bio_err,"DONE\n");
1431                                 goto shut;
1432                                 }
1433
1434                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1435                                 {
1436                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1437                                 SSL_renegotiate(con);
1438                                 cbuf_len=0;
1439                                 }
1440                         else
1441                                 {
1442                                 cbuf_len=i;
1443                                 cbuf_off=0;
1444 #ifdef CHARSET_EBCDIC
1445                                 ebcdic2ascii(cbuf, cbuf, i);
1446 #endif
1447                                 }
1448
1449                         write_ssl=1;
1450                         read_tty=0;
1451                         }
1452                 }
1453 shut:
1454         if (in_init)
1455                 print_stuff(bio_c_out,con,full_log);
1456         SSL_shutdown(con);
1457         SHUTDOWN(SSL_get_fd(con));
1458         ret=0;
1459 end:
1460         if (con != NULL)
1461                 {
1462                 if (prexit != 0)
1463                         print_stuff(bio_c_out,con,1);
1464                 SSL_free(con);
1465                 }
1466         if (ctx != NULL) SSL_CTX_free(ctx);
1467         if (cert)
1468                 X509_free(cert);
1469         if (key)
1470                 EVP_PKEY_free(key);
1471         if (pass)
1472                 OPENSSL_free(pass);
1473         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1474         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1475         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1476         if (bio_c_out != NULL)
1477                 {
1478                 BIO_free(bio_c_out);
1479                 bio_c_out=NULL;
1480                 }
1481         apps_shutdown();
1482         OPENSSL_EXIT(ret);
1483         }
1484
1485
1486 static void print_stuff(BIO *bio, SSL *s, int full)
1487         {
1488         X509 *peer=NULL;
1489         char *p;
1490         static const char *space="                ";
1491         char buf[BUFSIZ];
1492         STACK_OF(X509) *sk;
1493         STACK_OF(X509_NAME) *sk2;
1494         SSL_CIPHER *c;
1495         X509_NAME *xn;
1496         int j,i;
1497 #ifndef OPENSSL_NO_COMP
1498         const COMP_METHOD *comp, *expansion;
1499 #endif
1500
1501         if (full)
1502                 {
1503                 int got_a_chain = 0;
1504
1505                 sk=SSL_get_peer_cert_chain(s);
1506                 if (sk != NULL)
1507                         {
1508                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1509
1510                         BIO_printf(bio,"---\nCertificate chain\n");
1511                         for (i=0; i<sk_X509_num(sk); i++)
1512                                 {
1513                                 X509_NAME_oneline(X509_get_subject_name(
1514                                         sk_X509_value(sk,i)),buf,sizeof buf);
1515                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1516                                 X509_NAME_oneline(X509_get_issuer_name(
1517                                         sk_X509_value(sk,i)),buf,sizeof buf);
1518                                 BIO_printf(bio,"   i:%s\n",buf);
1519                                 if (c_showcerts)
1520                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1521                                 }
1522                         }
1523
1524                 BIO_printf(bio,"---\n");
1525                 peer=SSL_get_peer_certificate(s);
1526                 if (peer != NULL)
1527                         {
1528                         BIO_printf(bio,"Server certificate\n");
1529                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1530                                 PEM_write_bio_X509(bio,peer);
1531                         X509_NAME_oneline(X509_get_subject_name(peer),
1532                                 buf,sizeof buf);
1533                         BIO_printf(bio,"subject=%s\n",buf);
1534                         X509_NAME_oneline(X509_get_issuer_name(peer),
1535                                 buf,sizeof buf);
1536                         BIO_printf(bio,"issuer=%s\n",buf);
1537                         }
1538                 else
1539                         BIO_printf(bio,"no peer certificate available\n");
1540
1541                 sk2=SSL_get_client_CA_list(s);
1542                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1543                         {
1544                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1545                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1546                                 {
1547                                 xn=sk_X509_NAME_value(sk2,i);
1548                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1549                                 BIO_write(bio,buf,strlen(buf));
1550                                 BIO_write(bio,"\n",1);
1551                                 }
1552                         }
1553                 else
1554                         {
1555                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1556                         }
1557                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1558                 if (p != NULL)
1559                         {
1560                         /* This works only for SSL 2.  In later protocol
1561                          * versions, the client does not know what other
1562                          * ciphers (in addition to the one to be used
1563                          * in the current connection) the server supports. */
1564
1565                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1566                         j=i=0;
1567                         while (*p)
1568                                 {
1569                                 if (*p == ':')
1570                                         {
1571                                         BIO_write(bio,space,15-j%25);
1572                                         i++;
1573                                         j=0;
1574                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1575                                         }
1576                                 else
1577                                         {
1578                                         BIO_write(bio,p,1);
1579                                         j++;
1580                                         }
1581                                 p++;
1582                                 }
1583                         BIO_write(bio,"\n",1);
1584                         }
1585
1586                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1587                         BIO_number_read(SSL_get_rbio(s)),
1588                         BIO_number_written(SSL_get_wbio(s)));
1589                 }
1590         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1591         c=SSL_get_current_cipher(s);
1592         BIO_printf(bio,"%s, Cipher is %s\n",
1593                 SSL_CIPHER_get_version(c),
1594                 SSL_CIPHER_get_name(c));
1595         if (peer != NULL) {
1596                 EVP_PKEY *pktmp;
1597                 pktmp = X509_get_pubkey(peer);
1598                 BIO_printf(bio,"Server public key is %d bit\n",
1599                                                          EVP_PKEY_bits(pktmp));
1600                 EVP_PKEY_free(pktmp);
1601         }
1602 #ifndef OPENSSL_NO_COMP
1603         comp=SSL_get_current_compression(s);
1604         expansion=SSL_get_current_expansion(s);
1605         BIO_printf(bio,"Compression: %s\n",
1606                 comp ? SSL_COMP_get_name(comp) : "NONE");
1607         BIO_printf(bio,"Expansion: %s\n",
1608                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1609 #endif
1610         SSL_SESSION_print(bio,SSL_get_session(s));
1611         BIO_printf(bio,"---\n");
1612         if (peer != NULL)
1613                 X509_free(peer);
1614         /* flush, or debugging output gets mixed with http response */
1615         (void)BIO_flush(bio);
1616         }
1617
1618 static int ocsp_resp_cb(SSL *s, void *arg)
1619         {
1620         const unsigned char *p;
1621         int len;
1622         OCSP_RESPONSE *rsp;
1623         len = SSL_get_tlsext_status_ocsp_resp(s, &p);
1624         BIO_puts(arg, "OCSP response: ");
1625         if (!p)
1626                 {
1627                 BIO_puts(arg, "no response sent\n");
1628                 return 1;
1629                 }
1630         rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
1631         if (!rsp)
1632                 {
1633                 BIO_puts(arg, "response parse error\n");
1634                 BIO_dump_indent(arg, (char *)p, len, 4);
1635                 return 0;
1636                 }
1637         BIO_puts(arg, "\n======================================\n");
1638         OCSP_RESPONSE_print(arg, rsp, 0);
1639         BIO_puts(arg, "======================================\n");
1640         OCSP_RESPONSE_free(rsp);
1641         return 1;
1642         }