apps/s_client.c

   1 /* apps/s_client.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111 /* ====================================================================
 112  * Copyright 2005 Nokia. All rights reserved.
 113  *
 114  * The portions of the attached software ("Contribution") is developed by
 115  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
 116  * license.
 117  *
 118  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
 119  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
 120  * support (see RFC 4279) to OpenSSL.
 121  *
 122  * No patent licenses or other rights except those expressly stated in
 123  * the OpenSSL open source license shall be deemed granted or received
 124  * expressly, by implication, estoppel, or otherwise.
 125  *
 126  * No assurances are provided by Nokia that the Contribution does not
 127  * infringe the patent or other intellectual property rights of any third
 128  * party or that the license provides you with all the necessary rights
 129  * to make use of the Contribution.
 130  *
 131  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
 132  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
 133  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
 134  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
 135  * OTHERWISE.
 136  */
 137
 138 #include <assert.h>
 139 #include <ctype.h>
 140 #include <stdio.h>
 141 #include <stdlib.h>
 142 #include <string.h>
 143 #include <openssl/e_os2.h>
 144 #ifdef OPENSSL_NO_STDIO
 145 #define APPS_WIN16
 146 #endif
 147
 148 /* With IPv6, it looks like Digital has mixed up the proper order of
 149    recursive header file inclusion, resulting in the compiler complaining
 150    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 151    is needed to have fileno() declared correctly...  So let's define u_int */
 152 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 153 #define __U_INT
 154 typedef unsigned int u_int;
 155 #endif
 156
 157 #define USE_SOCKETS
 158 #include "apps.h"
 159 #include <openssl/x509.h>
 160 #include <openssl/ssl.h>
 161 #include <openssl/err.h>
 162 #include <openssl/pem.h>
 163 #include <openssl/rand.h>
 164 #include <openssl/ocsp.h>
 165 #include <openssl/bn.h>
 166 #include "s_apps.h"
 167 #include "timeouts.h"
 168
 169 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 170 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 171 #undef FIONBIO
 172 #endif
 173
 174 #if defined(OPENSSL_SYS_BEOS_R5)
 175 #include <fcntl.h>
 176 #endif
 177
 178 #undef PROG
 179 #define PROG    s_client_main
 180
 181 /*#define SSL_HOST_NAME "www.netscape.com" */
 182 /*#define SSL_HOST_NAME "193.118.187.102" */
 183 #define SSL_HOST_NAME   "localhost"
 184
 185 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 186
 187 #undef BUFSIZZ
 188 #define BUFSIZZ 1024*8
 189
 190 extern int verify_depth;
 191 extern int verify_error;
 192 extern int verify_return_error;
 193
 194 #ifdef FIONBIO
 195 static int c_nbio=0;
 196 #endif
 197 static int c_Pause=0;
 198 static int c_debug=0;
 199 #ifndef OPENSSL_NO_TLSEXT
 200 static int c_tlsextdebug=0;
 201 static int c_status_req=0;
 202 #endif
 203 static int c_msg=0;
 204 static int c_showcerts=0;
 205
 206 static void sc_usage(void);
 207 static void print_stuff(BIO *berr,SSL *con,int full);
 208 static int ocsp_resp_cb(SSL *s, void *arg);
 209 static BIO *bio_c_out=NULL;
 210 static int c_quiet=0;
 211 static int c_ign_eof=0;
 212
 213 #ifndef OPENSSL_NO_PSK
 214 /* Default PSK identity and key */
 215 static char *psk_identity="Client_identity";
 216 static char *psk_key=NULL; /* by default PSK is not used */
 217
 218 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
 219         unsigned int max_identity_len, unsigned char *psk,
 220         unsigned int max_psk_len)
 221         {
 222         unsigned int psk_len = 0;
 223         int ret;
 224         BIGNUM *bn=NULL;
 225
 226         if (c_debug)
 227                 BIO_printf(bio_c_out, "psk_client_cb\n");
 228         if (!hint)
 229                 {
 230                 /* no ServerKeyExchange message*/
 231                 if (c_debug)
 232                         BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n");
 233                 }
 234         else if (c_debug)
 235                 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
 236
 237         /* lookup PSK identity and PSK key based on the given identity hint here */
 238         ret = BIO_snprintf(identity, max_identity_len, psk_identity);
 239         if (ret < 0 || (unsigned int)ret > max_identity_len)
 240                 goto out_err;
 241         if (c_debug)
 242                 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret);
 243         ret=BN_hex2bn(&bn, psk_key);
 244         if (!ret)
 245                 {
 246                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 247                 if (bn)
 248                         BN_free(bn);
 249                 return 0;
 250                 }
 251
 252         if ((unsigned int)BN_num_bytes(bn) > max_psk_len)
 253                 {
 254                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 255                         max_psk_len, BN_num_bytes(bn));
 256                 BN_free(bn);
 257                 return 0;
 258                 }
 259
 260         psk_len=BN_bn2bin(bn, psk);
 261         BN_free(bn);
 262         if (psk_len == 0)
 263                 goto out_err;
 264
 265         if (c_debug)
 266                 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
 267
 268         return psk_len;
 269  out_err:
 270         if (c_debug)
 271                 BIO_printf(bio_err, "Error in PSK client callback\n");
 272         return 0;
 273         }
 274 #endif
 275
 276 static void sc_usage(void)
 277         {
 278         BIO_printf(bio_err,"usage: s_client args\n");
 279         BIO_printf(bio_err,"\n");
 280         BIO_printf(bio_err," -host host     - use -connect instead\n");
 281         BIO_printf(bio_err," -port port     - use -connect instead\n");
 282         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 283
 284         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 285         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 286         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 287         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 288         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 289         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 290         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 291         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 292         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 293         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 294         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 295         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 296         BIO_printf(bio_err," -debug        - extra output\n");
 297 #ifdef WATT32
 298         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 299 #endif
 300         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 301         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 302         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 303 #ifdef FIONBIO
 304         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 305 #endif
 306         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 307         BIO_printf(bio_err," -quiet        - no s_client output\n");
 308         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 309 #ifndef OPENSSL_NO_PSK
 310         BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
 311         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 312 #endif
 313         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 314         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 315         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 316         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 317         BIO_printf(bio_err," -mtu          - set the MTU\n");
 318         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 319         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 320         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 321         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 322         BIO_printf(bio_err,"                 command to see what is available\n");
 323         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 324         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 325         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 326         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", and \"ftp\" are supported.\n");
 327 #ifndef OPENSSL_NO_ENGINE
 328         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 329 #endif
 330         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 331         BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
 332         BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
 333 #ifndef OPENSSL_NO_TLSEXT
 334         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 335         BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
 336         BIO_printf(bio_err," -status           - request certificate status from server\n");
 337         BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
 338 #endif
 339         }
 340
 341 #ifndef OPENSSL_NO_TLSEXT
 342
 343 /* This is a context that we pass to callbacks */
 344 typedef struct tlsextctx_st {
 345    BIO * biodebug;
 346    int ack;
 347 } tlsextctx;
 348
 349
 350 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 351         {
 352         tlsextctx * p = (tlsextctx *) arg;
 353         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 354         if (SSL_get_servername_type(s) != -1)
 355                 p->ack = !SSL_session_reused(s) && hn != NULL;
 356         else
 357                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 358
 359         return SSL_TLSEXT_ERR_OK;
 360         }
 361 #endif
 362
 363 enum
 364 {
 365         PROTO_OFF       = 0,
 366         PROTO_SMTP,
 367         PROTO_POP3,
 368         PROTO_IMAP,
 369         PROTO_FTP
 370 };
 371
 372 int MAIN(int, char **);
 373
 374 int MAIN(int argc, char **argv)
 375         {
 376         int off=0;
 377         SSL *con=NULL;
 378         X509_STORE *store = NULL;
 379         int s,k,width,state=0;
 380         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 381         int cbuf_len,cbuf_off;
 382         int sbuf_len,sbuf_off;
 383         fd_set readfds,writefds;
 384         short port=PORT;
 385         int full_log=1;
 386         char *host=SSL_HOST_NAME;
 387         char *cert_file=NULL,*key_file=NULL;
 388         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 389         char *passarg = NULL, *pass = NULL;
 390         X509 *cert = NULL;
 391         EVP_PKEY *key = NULL;
 392         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 393         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 394         int crlf=0;
 395         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 396         SSL_CTX *ctx=NULL;
 397         int ret=1,in_init=1,i,nbio_test=0;
 398         int starttls_proto = PROTO_OFF;
 399         int prexit = 0, vflags = 0;
 400         const SSL_METHOD *meth=NULL;
 401         int socket_type=SOCK_STREAM;
 402         BIO *sbio;
 403         char *inrand=NULL;
 404         int mbuf_len=0;
 405 #ifndef OPENSSL_NO_ENGINE
 406         char *engine_id=NULL;
 407         char *ssl_client_engine_id=NULL;
 408         ENGINE *e=NULL, *ssl_client_engine=NULL;
 409 #endif
 410 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
 411         struct timeval tv;
 412 #if defined(OPENSSL_SYS_BEOS_R5)
 413         int stdin_set = 0;
 414 #endif
 415 #endif
 416
 417 #ifndef OPENSSL_NO_TLSEXT
 418         char *servername = NULL;
 419         tlsextctx tlsextcbp =
 420         {NULL,0};
 421 #endif
 422         char *sess_in = NULL;
 423         char *sess_out = NULL;
 424         struct sockaddr peer;
 425         int peerlen = sizeof(peer);
 426         int enable_timeouts = 0 ;
 427         long socket_mtu = 0;
 428
 429 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 430         meth=SSLv23_client_method();
 431 #elif !defined(OPENSSL_NO_SSL3)
 432         meth=SSLv3_client_method();
 433 #elif !defined(OPENSSL_NO_SSL2)
 434         meth=SSLv2_client_method();
 435 #endif
 436
 437         apps_startup();
 438         c_Pause=0;
 439         c_quiet=0;
 440         c_ign_eof=0;
 441         c_debug=0;
 442         c_msg=0;
 443         c_showcerts=0;
 444
 445         if (bio_err == NULL)
 446                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 447
 448         if (!load_config(bio_err, NULL))
 449                 goto end;
 450
 451         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 452                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 453                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 454                 {
 455                 BIO_printf(bio_err,"out of memory\n");
 456                 goto end;
 457                 }
 458
 459         verify_depth=0;
 460         verify_error=X509_V_OK;
 461 #ifdef FIONBIO
 462         c_nbio=0;
 463 #endif
 464
 465         argc--;
 466         argv++;
 467         while (argc >= 1)
 468                 {
 469                 if      (strcmp(*argv,"-host") == 0)
 470                         {
 471                         if (--argc < 1) goto bad;
 472                         host= *(++argv);
 473                         }
 474                 else if (strcmp(*argv,"-port") == 0)
 475                         {
 476                         if (--argc < 1) goto bad;
 477                         port=atoi(*(++argv));
 478                         if (port == 0) goto bad;
 479                         }
 480                 else if (strcmp(*argv,"-connect") == 0)
 481                         {
 482                         if (--argc < 1) goto bad;
 483                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 484                                 goto bad;
 485                         }
 486                 else if (strcmp(*argv,"-verify") == 0)
 487                         {
 488                         verify=SSL_VERIFY_PEER;
 489                         if (--argc < 1) goto bad;
 490                         verify_depth=atoi(*(++argv));
 491                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 492                         }
 493                 else if (strcmp(*argv,"-cert") == 0)
 494                         {
 495                         if (--argc < 1) goto bad;
 496                         cert_file= *(++argv);
 497                         }
 498                 else if (strcmp(*argv,"-sess_out") == 0)
 499                         {
 500                         if (--argc < 1) goto bad;
 501                         sess_out = *(++argv);
 502                         }
 503                 else if (strcmp(*argv,"-sess_in") == 0)
 504                         {
 505                         if (--argc < 1) goto bad;
 506                         sess_in = *(++argv);
 507                         }
 508                 else if (strcmp(*argv,"-certform") == 0)
 509                         {
 510                         if (--argc < 1) goto bad;
 511                         cert_format = str2fmt(*(++argv));
 512                         }
 513                 else if (strcmp(*argv,"-crl_check") == 0)
 514                         vflags |= X509_V_FLAG_CRL_CHECK;
 515                 else if (strcmp(*argv,"-crl_check_all") == 0)
 516                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 517                 else if (strcmp(*argv,"-verify_return_error") == 0)
 518                         verify_return_error = 1;
 519                 else if (strcmp(*argv,"-prexit") == 0)
 520                         prexit=1;
 521                 else if (strcmp(*argv,"-crlf") == 0)
 522                         crlf=1;
 523                 else if (strcmp(*argv,"-quiet") == 0)
 524                         {
 525                         c_quiet=1;
 526                         c_ign_eof=1;
 527                         }
 528                 else if (strcmp(*argv,"-ign_eof") == 0)
 529                         c_ign_eof=1;
 530                 else if (strcmp(*argv,"-pause") == 0)
 531                         c_Pause=1;
 532                 else if (strcmp(*argv,"-debug") == 0)
 533                         c_debug=1;
 534 #ifndef OPENSSL_NO_TLSEXT
 535                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 536                         c_tlsextdebug=1;
 537                 else if (strcmp(*argv,"-status") == 0)
 538                         c_status_req=1;
 539 #endif
 540 #ifdef WATT32
 541                 else if (strcmp(*argv,"-wdebug") == 0)
 542                         dbug_init();
 543 #endif
 544                 else if (strcmp(*argv,"-msg") == 0)
 545                         c_msg=1;
 546                 else if (strcmp(*argv,"-showcerts") == 0)
 547                         c_showcerts=1;
 548                 else if (strcmp(*argv,"-nbio_test") == 0)
 549                         nbio_test=1;
 550                 else if (strcmp(*argv,"-state") == 0)
 551                         state=1;
 552 #ifndef OPENSSL_NO_PSK
 553                 else if (strcmp(*argv,"-psk_identity") == 0)
 554                         {
 555                         if (--argc < 1) goto bad;
 556                         psk_identity=*(++argv);
 557                         }
 558                 else if (strcmp(*argv,"-psk") == 0)
 559                         {
 560                         size_t j;
 561
 562                         if (--argc < 1) goto bad;
 563                         psk_key=*(++argv);
 564                         for (j = 0; j < strlen(psk_key); j++)
 565                                 {
 566                                 if (isxdigit((int)psk_key[j]))
 567                                         continue;
 568                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
 569                                 goto bad;
 570                                 }
 571                         }
 572 #endif
 573 #ifndef OPENSSL_NO_SSL2
 574                 else if (strcmp(*argv,"-ssl2") == 0)
 575                         meth=SSLv2_client_method();
 576 #endif
 577 #ifndef OPENSSL_NO_SSL3
 578                 else if (strcmp(*argv,"-ssl3") == 0)
 579                         meth=SSLv3_client_method();
 580 #endif
 581 #ifndef OPENSSL_NO_TLS1
 582                 else if (strcmp(*argv,"-tls1") == 0)
 583                         meth=TLSv1_client_method();
 584 #endif
 585 #ifndef OPENSSL_NO_DTLS1
 586                 else if (strcmp(*argv,"-dtls1") == 0)
 587                         {
 588                         meth=DTLSv1_client_method();
 589                         socket_type=SOCK_DGRAM;
 590                         }
 591                 else if (strcmp(*argv,"-timeout") == 0)
 592                         enable_timeouts=1;
 593                 else if (strcmp(*argv,"-mtu") == 0)
 594                         {
 595                         if (--argc < 1) goto bad;
 596                         socket_mtu = atol(*(++argv));
 597                         }
 598 #endif
 599                 else if (strcmp(*argv,"-bugs") == 0)
 600                         bugs=1;
 601                 else if (strcmp(*argv,"-keyform") == 0)
 602                         {
 603                         if (--argc < 1) goto bad;
 604                         key_format = str2fmt(*(++argv));
 605                         }
 606                 else if (strcmp(*argv,"-pass") == 0)
 607                         {
 608                         if (--argc < 1) goto bad;
 609                         passarg = *(++argv);
 610                         }
 611                 else if (strcmp(*argv,"-key") == 0)
 612                         {
 613                         if (--argc < 1) goto bad;
 614                         key_file= *(++argv);
 615                         }
 616                 else if (strcmp(*argv,"-reconnect") == 0)
 617                         {
 618                         reconnect=5;
 619                         }
 620                 else if (strcmp(*argv,"-CApath") == 0)
 621                         {
 622                         if (--argc < 1) goto bad;
 623                         CApath= *(++argv);
 624                         }
 625                 else if (strcmp(*argv,"-CAfile") == 0)
 626                         {
 627                         if (--argc < 1) goto bad;
 628                         CAfile= *(++argv);
 629                         }
 630                 else if (strcmp(*argv,"-no_tls1") == 0)
 631                         off|=SSL_OP_NO_TLSv1;
 632                 else if (strcmp(*argv,"-no_ssl3") == 0)
 633                         off|=SSL_OP_NO_SSLv3;
 634                 else if (strcmp(*argv,"-no_ssl2") == 0)
 635                         off|=SSL_OP_NO_SSLv2;
 636                 else if (strcmp(*argv,"-no_comp") == 0)
 637                         { off|=SSL_OP_NO_COMPRESSION; }
 638 #ifndef OPENSSL_NO_TLSEXT
 639                 else if (strcmp(*argv,"-no_ticket") == 0)
 640                         { off|=SSL_OP_NO_TICKET; }
 641 #endif
 642                 else if (strcmp(*argv,"-serverpref") == 0)
 643                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 644                 else if (strcmp(*argv,"-cipher") == 0)
 645                         {
 646                         if (--argc < 1) goto bad;
 647                         cipher= *(++argv);
 648                         }
 649 #ifdef FIONBIO
 650                 else if (strcmp(*argv,"-nbio") == 0)
 651                         { c_nbio=1; }
 652 #endif
 653                 else if (strcmp(*argv,"-starttls") == 0)
 654                         {
 655                         if (--argc < 1) goto bad;
 656                         ++argv;
 657                         if (strcmp(*argv,"smtp") == 0)
 658                                 starttls_proto = PROTO_SMTP;
 659                         else if (strcmp(*argv,"pop3") == 0)
 660                                 starttls_proto = PROTO_POP3;
 661                         else if (strcmp(*argv,"imap") == 0)
 662                                 starttls_proto = PROTO_IMAP;
 663                         else if (strcmp(*argv,"ftp") == 0)
 664                                 starttls_proto = PROTO_FTP;
 665                         else
 666                                 goto bad;
 667                         }
 668 #ifndef OPENSSL_NO_ENGINE
 669                 else if (strcmp(*argv,"-engine") == 0)
 670                         {
 671                         if (--argc < 1) goto bad;
 672                         engine_id = *(++argv);
 673                         }
 674                 else if (strcmp(*argv,"-ssl_client_engine") == 0)
 675                         {
 676                         if (--argc < 1) goto bad;
 677                         ssl_client_engine_id = *(++argv);
 678                         }
 679 #endif
 680                 else if (strcmp(*argv,"-rand") == 0)
 681                         {
 682                         if (--argc < 1) goto bad;
 683                         inrand= *(++argv);
 684                         }
 685 #ifndef OPENSSL_NO_TLSEXT
 686                 else if (strcmp(*argv,"-servername") == 0)
 687                         {
 688                         if (--argc < 1) goto bad;
 689                         servername= *(++argv);
 690                         /* meth=TLSv1_client_method(); */
 691                         }
 692 #endif
 693                 else
 694                         {
 695                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 696                         badop=1;
 697                         break;
 698                         }
 699                 argc--;
 700                 argv++;
 701                 }
 702         if (badop)
 703                 {
 704 bad:
 705                 sc_usage();
 706                 goto end;
 707                 }
 708
 709         OpenSSL_add_ssl_algorithms();
 710         SSL_load_error_strings();
 711
 712 #ifndef OPENSSL_NO_ENGINE
 713         e = setup_engine(bio_err, engine_id, 1);
 714         if (ssl_client_engine_id)
 715                 {
 716                 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
 717                 if (!ssl_client_engine)
 718                         {
 719                         BIO_printf(bio_err,
 720                                         "Error getting client auth engine\n");
 721                         goto end;
 722                         }
 723                 }
 724
 725 #endif
 726         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
 727                 {
 728                 BIO_printf(bio_err, "Error getting password\n");
 729                 goto end;
 730                 }
 731
 732         if (key_file == NULL)
 733                 key_file = cert_file;
 734
 735
 736         if (key_file)
 737
 738                 {
 739
 740                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
 741                                "client certificate private key file");
 742                 if (!key)
 743                         {
 744                         ERR_print_errors(bio_err);
 745                         goto end;
 746                         }
 747
 748                 }
 749
 750         if (cert_file)
 751
 752                 {
 753                 cert = load_cert(bio_err,cert_file,cert_format,
 754                                 NULL, e, "client certificate file");
 755
 756                 if (!cert)
 757                         {
 758                         ERR_print_errors(bio_err);
 759                         goto end;
 760                         }
 761                 }
 762
 763         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 764                 && !RAND_status())
 765                 {
 766                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 767                 }
 768         if (inrand != NULL)
 769                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 770                         app_RAND_load_files(inrand));
 771
 772         if (bio_c_out == NULL)
 773                 {
 774                 if (c_quiet && !c_debug && !c_msg)
 775                         {
 776                         bio_c_out=BIO_new(BIO_s_null());
 777                         }
 778                 else
 779                         {
 780                         if (bio_c_out == NULL)
 781                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 782                         }
 783                 }
 784
 785         ctx=SSL_CTX_new(meth);
 786         if (ctx == NULL)
 787                 {
 788                 ERR_print_errors(bio_err);
 789                 goto end;
 790                 }
 791
 792 #ifndef OPENSSL_NO_ENGINE
 793         if (ssl_client_engine)
 794                 {
 795                 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine))
 796                         {
 797                         BIO_puts(bio_err, "Error setting client auth engine\n");
 798                         ERR_print_errors(bio_err);
 799                         ENGINE_free(ssl_client_engine);
 800                         goto end;
 801                         }
 802                 ENGINE_free(ssl_client_engine);
 803                 }
 804 #endif
 805
 806 #ifndef OPENSSL_NO_PSK
 807         if (psk_key != NULL)
 808                 {
 809                 if (c_debug)
 810                         BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
 811                 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
 812                 }
 813 #endif
 814         if (bugs)
 815                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 816         else
 817                 SSL_CTX_set_options(ctx,off);
 818         /* DTLS: partial reads end up discarding unread UDP bytes :-(
 819          * Setting read ahead solves this problem.
 820          */
 821         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
 822
 823         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 824         if (cipher != NULL)
 825                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 826                 BIO_printf(bio_err,"error setting cipher list\n");
 827                 ERR_print_errors(bio_err);
 828                 goto end;
 829         }
 830 #if 0
 831         else
 832                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 833 #endif
 834
 835         SSL_CTX_set_verify(ctx,verify,verify_callback);
 836         if (!set_cert_key_stuff(ctx,cert,key))
 837                 goto end;
 838
 839         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 840                 (!SSL_CTX_set_default_verify_paths(ctx)))
 841                 {
 842                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 843                 ERR_print_errors(bio_err);
 844                 /* goto end; */
 845                 }
 846
 847         store = SSL_CTX_get_cert_store(ctx);
 848         X509_STORE_set_flags(store, vflags);
 849 #ifndef OPENSSL_NO_TLSEXT
 850         if (servername != NULL)
 851                 {
 852                 tlsextcbp.biodebug = bio_err;
 853                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
 854                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
 855                 }
 856 #endif
 857
 858         con=SSL_new(ctx);
 859         if (sess_in)
 860                 {
 861                 SSL_SESSION *sess;
 862                 BIO *stmp = BIO_new_file(sess_in, "r");
 863                 if (!stmp)
 864                         {
 865                         BIO_printf(bio_err, "Can't open session file %s\n",
 866                                                 sess_in);
 867                         ERR_print_errors(bio_err);
 868                         goto end;
 869                         }
 870                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
 871                 BIO_free(stmp);
 872                 if (!sess)
 873                         {
 874                         BIO_printf(bio_err, "Can't open session file %s\n",
 875                                                 sess_in);
 876                         ERR_print_errors(bio_err);
 877                         goto end;
 878                         }
 879                 SSL_set_session(con, sess);
 880                 SSL_SESSION_free(sess);
 881                 }
 882 #ifndef OPENSSL_NO_TLSEXT
 883         if (servername != NULL)
 884                 {
 885                 if (!SSL_set_tlsext_host_name(con,servername))
 886                         {
 887                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
 888                         ERR_print_errors(bio_err);
 889                         goto end;
 890                         }
 891                 }
 892 #endif
 893 #ifndef OPENSSL_NO_KRB5
 894         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 895                 {
 896                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 897                 }
 898 #endif  /* OPENSSL_NO_KRB5  */
 899 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 900 #if 0
 901 #ifdef TLSEXT_TYPE_opaque_prf_input
 902         SSL_set_tlsext_opaque_prf_input(con, "Test client", 11);
 903 #endif
 904 #endif
 905
 906 re_start:
 907
 908         if (init_client(&s,host,port,socket_type) == 0)
 909                 {
 910                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 911                 SHUTDOWN(s);
 912                 goto end;
 913                 }
 914         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 915
 916 #ifdef FIONBIO
 917         if (c_nbio)
 918                 {
 919                 unsigned long l=1;
 920                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 921                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 922                         {
 923                         ERR_print_errors(bio_err);
 924                         goto end;
 925                         }
 926                 }
 927 #endif
 928         if (c_Pause & 0x01) con->debug=1;
 929
 930         if ( SSL_version(con) == DTLS1_VERSION)
 931                 {
 932                 struct timeval timeout;
 933
 934                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
 935                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
 936                         {
 937                         BIO_printf(bio_err, "getsockname:errno=%d\n",
 938                                 get_last_socket_error());
 939                         SHUTDOWN(s);
 940                         goto end;
 941                         }
 942
 943                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
 944
 945                 if (enable_timeouts)
 946                         {
 947                         timeout.tv_sec = 0;
 948                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
 949                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
 950
 951                         timeout.tv_sec = 0;
 952                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
 953                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
 954                         }
 955
 956                 if (socket_mtu > 0)
 957                         {
 958                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
 959                         SSL_set_mtu(con, socket_mtu);
 960                         }
 961                 else
 962                         /* want to do MTU discovery */
 963                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
 964                 }
 965         else
 966                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
 967
 968
 969
 970         if (nbio_test)
 971                 {
 972                 BIO *test;
 973
 974                 test=BIO_new(BIO_f_nbio_test());
 975                 sbio=BIO_push(test,sbio);
 976                 }
 977
 978         if (c_debug)
 979                 {
 980                 con->debug=1;
 981                 BIO_set_callback(sbio,bio_dump_callback);
 982                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
 983                 }
 984         if (c_msg)
 985                 {
 986                 SSL_set_msg_callback(con, msg_cb);
 987                 SSL_set_msg_callback_arg(con, bio_c_out);
 988                 }
 989 #ifndef OPENSSL_NO_TLSEXT
 990         if (c_tlsextdebug)
 991                 {
 992                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
 993                 SSL_set_tlsext_debug_arg(con, bio_c_out);
 994                 }
 995         if (c_status_req)
 996                 {
 997                 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
 998                 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
 999                 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
1000 #if 0
1001 {
1002 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
1003 OCSP_RESPID *id = OCSP_RESPID_new();
1004 id->value.byKey = ASN1_OCTET_STRING_new();
1005 id->type = V_OCSP_RESPID_KEY;
1006 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
1007 sk_OCSP_RESPID_push(ids, id);
1008 SSL_set_tlsext_status_ids(con, ids);
1009 }
1010 #endif
1011                 }
1012 #endif
1013
1014         SSL_set_bio(con,sbio,sbio);
1015         SSL_set_connect_state(con);
1016
1017         /* ok, lets connect */
1018         width=SSL_get_fd(con)+1;
1019
1020         read_tty=1;
1021         write_tty=0;
1022         tty_on=0;
1023         read_ssl=1;
1024         write_ssl=1;
1025
1026         cbuf_len=0;
1027         cbuf_off=0;
1028         sbuf_len=0;
1029         sbuf_off=0;
1030
1031         /* This is an ugly hack that does a lot of assumptions */
1032         /* We do have to handle multi-line responses which may come
1033            in a single packet or not. We therefore have to use
1034            BIO_gets() which does need a buffering BIO. So during
1035            the initial chitchat we do push a buffering BIO into the
1036            chain that is removed again later on to not disturb the
1037            rest of the s_client operation. */
1038         if (starttls_proto == PROTO_SMTP)
1039                 {
1040                 int foundit=0;
1041                 BIO *fbio = BIO_new(BIO_f_buffer());
1042                 BIO_push(fbio, sbio);
1043                 /* wait for multi-line response to end from SMTP */
1044                 do
1045                         {
1046                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1047                         }
1048                 while (mbuf_len>3 && mbuf[3]=='-');
1049                 /* STARTTLS command requires EHLO... */
1050                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
1051                 (void)BIO_flush(fbio);
1052                 /* wait for multi-line response to end EHLO SMTP response */
1053                 do
1054                         {
1055                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1056                         if (strstr(mbuf,"STARTTLS"))
1057                                 foundit=1;
1058                         }
1059                 while (mbuf_len>3 && mbuf[3]=='-');
1060                 (void)BIO_flush(fbio);
1061                 BIO_pop(fbio);
1062                 BIO_free(fbio);
1063                 if (!foundit)
1064                         BIO_printf(bio_err,
1065                                    "didn't found starttls in server response,"
1066                                    " try anyway...\n");
1067                 BIO_printf(sbio,"STARTTLS\r\n");
1068                 BIO_read(sbio,sbuf,BUFSIZZ);
1069                 }
1070         else if (starttls_proto == PROTO_POP3)
1071                 {
1072                 BIO_read(sbio,mbuf,BUFSIZZ);
1073                 BIO_printf(sbio,"STLS\r\n");
1074                 BIO_read(sbio,sbuf,BUFSIZZ);
1075                 }
1076         else if (starttls_proto == PROTO_IMAP)
1077                 {
1078                 int foundit=0;
1079                 BIO *fbio = BIO_new(BIO_f_buffer());
1080                 BIO_push(fbio, sbio);
1081                 BIO_gets(fbio,mbuf,BUFSIZZ);
1082                 /* STARTTLS command requires CAPABILITY... */
1083                 BIO_printf(fbio,". CAPABILITY\r\n");
1084                 (void)BIO_flush(fbio);
1085                 /* wait for multi-line CAPABILITY response */
1086                 do
1087                         {
1088                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1089                         if (strstr(mbuf,"STARTTLS"))
1090                                 foundit=1;
1091                         }
1092                 while (mbuf_len>3 && mbuf[0]!='.');
1093                 (void)BIO_flush(fbio);
1094                 BIO_pop(fbio);
1095                 BIO_free(fbio);
1096                 if (!foundit)
1097                         BIO_printf(bio_err,
1098                                    "didn't found STARTTLS in server response,"
1099                                    " try anyway...\n");
1100                 BIO_printf(sbio,". STARTTLS\r\n");
1101                 BIO_read(sbio,sbuf,BUFSIZZ);
1102                 }
1103         else if (starttls_proto == PROTO_FTP)
1104                 {
1105                 BIO *fbio = BIO_new(BIO_f_buffer());
1106                 BIO_push(fbio, sbio);
1107                 /* wait for multi-line response to end from FTP */
1108                 do
1109                         {
1110                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1111                         }
1112                 while (mbuf_len>3 && mbuf[3]=='-');
1113                 (void)BIO_flush(fbio);
1114                 BIO_pop(fbio);
1115                 BIO_free(fbio);
1116                 BIO_printf(sbio,"AUTH TLS\r\n");
1117                 BIO_read(sbio,sbuf,BUFSIZZ);
1118                 }
1119
1120         for (;;)
1121                 {
1122                 FD_ZERO(&readfds);
1123                 FD_ZERO(&writefds);
1124
1125                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1126                         {
1127                         in_init=1;
1128                         tty_on=0;
1129                         }
1130                 else
1131                         {
1132                         tty_on=1;
1133                         if (in_init)
1134                                 {
1135                                 in_init=0;
1136 #if 0 /* This test doesn't really work as intended (needs to be fixed) */
1137 #ifndef OPENSSL_NO_TLSEXT
1138                                 if (servername != NULL && !SSL_session_reused(con))
1139                                         {
1140                                         BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
1141                                         }
1142 #endif
1143 #endif
1144                                 if (sess_out)
1145                                         {
1146                                         BIO *stmp = BIO_new_file(sess_out, "w");
1147                                         if (stmp)
1148                                                 {
1149                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1150                                                 BIO_free(stmp);
1151                                                 }
1152                                         else
1153                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1154                                         }
1155                                 print_stuff(bio_c_out,con,full_log);
1156                                 if (full_log > 0) full_log--;
1157
1158                                 if (starttls_proto)
1159                                         {
1160                                         BIO_printf(bio_err,"%s",mbuf);
1161                                         /* We don't need to know any more */
1162                                         starttls_proto = PROTO_OFF;
1163                                         }
1164
1165                                 if (reconnect)
1166                                         {
1167                                         reconnect--;
1168                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1169                                         SSL_shutdown(con);
1170                                         SSL_set_connect_state(con);
1171                                         SHUTDOWN(SSL_get_fd(con));
1172                                         goto re_start;
1173                                         }
1174                                 }
1175                         }
1176
1177                 ssl_pending = read_ssl && SSL_pending(con);
1178
1179                 if (!ssl_pending)
1180                         {
1181 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
1182                         if (tty_on)
1183                                 {
1184                                 if (read_tty)  openssl_fdset(fileno(stdin),&readfds);
1185                                 if (write_tty) openssl_fdset(fileno(stdout),&writefds);
1186                                 }
1187                         if (read_ssl)
1188                                 openssl_fdset(SSL_get_fd(con),&readfds);
1189                         if (write_ssl)
1190                                 openssl_fdset(SSL_get_fd(con),&writefds);
1191 #else
1192                         if(!tty_on || !write_tty) {
1193                                 if (read_ssl)
1194                                         openssl_fdset(SSL_get_fd(con),&readfds);
1195                                 if (write_ssl)
1196                                         openssl_fdset(SSL_get_fd(con),&writefds);
1197                         }
1198 #endif
1199 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1200                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1201
1202                         /* Note: under VMS with SOCKETSHR the second parameter
1203                          * is currently of type (int *) whereas under other
1204                          * systems it is (void *) if you don't have a cast it
1205                          * will choke the compiler: if you do have a cast then
1206                          * you can either go for (int *) or (void *).
1207                          */
1208 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1209                         /* Under Windows/DOS we make the assumption that we can
1210                          * always write to the tty: therefore if we need to
1211                          * write to the tty we just fall through. Otherwise
1212                          * we timeout the select every second and see if there
1213                          * are any keypresses. Note: this is a hack, in a proper
1214                          * Windows application we wouldn't do this.
1215                          */
1216                         i=0;
1217                         if(!write_tty) {
1218                                 if(read_tty) {
1219                                         tv.tv_sec = 1;
1220                                         tv.tv_usec = 0;
1221                                         i=select(width,(void *)&readfds,(void *)&writefds,
1222                                                  NULL,&tv);
1223 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1224                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1225 #else
1226                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1227 #endif
1228                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1229                                          NULL,NULL);
1230                         }
1231 #elif defined(OPENSSL_SYS_NETWARE)
1232                         if(!write_tty) {
1233                                 if(read_tty) {
1234                                         tv.tv_sec = 1;
1235                                         tv.tv_usec = 0;
1236                                         i=select(width,(void *)&readfds,(void *)&writefds,
1237                                                 NULL,&tv);
1238                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1239                                         NULL,NULL);
1240                         }
1241 #elif defined(OPENSSL_SYS_BEOS_R5)
1242                         /* Under BeOS-R5 the situation is similar to DOS */
1243                         i=0;
1244                         stdin_set = 0;
1245                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1246                         if(!write_tty) {
1247                                 if(read_tty) {
1248                                         tv.tv_sec = 1;
1249                                         tv.tv_usec = 0;
1250                                         i=select(width,(void *)&readfds,(void *)&writefds,
1251                                                  NULL,&tv);
1252                                         if (read(fileno(stdin), sbuf, 0) >= 0)
1253                                                 stdin_set = 1;
1254                                         if (!i && (stdin_set != 1 || !read_tty))
1255                                                 continue;
1256                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1257                                          NULL,NULL);
1258                         }
1259                         (void)fcntl(fileno(stdin), F_SETFL, 0);
1260 #else
1261                         i=select(width,(void *)&readfds,(void *)&writefds,
1262                                  NULL,NULL);
1263 #endif
1264                         if ( i < 0)
1265                                 {
1266                                 BIO_printf(bio_err,"bad select %d\n",
1267                                 get_last_socket_error());
1268                                 goto shut;
1269                                 /* goto end; */
1270                                 }
1271                         }
1272
1273                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1274                         {
1275                         k=SSL_write(con,&(cbuf[cbuf_off]),
1276                                 (unsigned int)cbuf_len);
1277                         switch (SSL_get_error(con,k))
1278                                 {
1279                         case SSL_ERROR_NONE:
1280                                 cbuf_off+=k;
1281                                 cbuf_len-=k;
1282                                 if (k <= 0) goto end;
1283                                 /* we have done a  write(con,NULL,0); */
1284                                 if (cbuf_len <= 0)
1285                                         {
1286                                         read_tty=1;
1287                                         write_ssl=0;
1288                                         }
1289                                 else /* if (cbuf_len > 0) */
1290                                         {
1291                                         read_tty=0;
1292                                         write_ssl=1;
1293                                         }
1294                                 break;
1295                         case SSL_ERROR_WANT_WRITE:
1296                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1297                                 write_ssl=1;
1298                                 read_tty=0;
1299                                 break;
1300                         case SSL_ERROR_WANT_READ:
1301                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1302                                 write_tty=0;
1303                                 read_ssl=1;
1304                                 write_ssl=0;
1305                                 break;
1306                         case SSL_ERROR_WANT_X509_LOOKUP:
1307                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1308                                 break;
1309                         case SSL_ERROR_ZERO_RETURN:
1310                                 if (cbuf_len != 0)
1311                                         {
1312                                         BIO_printf(bio_c_out,"shutdown\n");
1313                                         ret = 0;
1314                                         goto shut;
1315                                         }
1316                                 else
1317                                         {
1318                                         read_tty=1;
1319                                         write_ssl=0;
1320                                         break;
1321                                         }
1322
1323                         case SSL_ERROR_SYSCALL:
1324                                 if ((k != 0) || (cbuf_len != 0))
1325                                         {
1326                                         BIO_printf(bio_err,"write:errno=%d\n",
1327                                                 get_last_socket_error());
1328                                         goto shut;
1329                                         }
1330                                 else
1331                                         {
1332                                         read_tty=1;
1333                                         write_ssl=0;
1334                                         }
1335                                 break;
1336                         case SSL_ERROR_SSL:
1337                                 ERR_print_errors(bio_err);
1338                                 goto shut;
1339                                 }
1340                         }
1341 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1342                 /* Assume Windows/DOS/BeOS can always write */
1343                 else if (!ssl_pending && write_tty)
1344 #else
1345                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1346 #endif
1347                         {
1348 #ifdef CHARSET_EBCDIC
1349                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1350 #endif
1351                         i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
1352
1353                         if (i <= 0)
1354                                 {
1355                                 BIO_printf(bio_c_out,"DONE\n");
1356                                 ret = 0;
1357                                 goto shut;
1358                                 /* goto end; */
1359                                 }
1360
1361                         sbuf_len-=i;;
1362                         sbuf_off+=i;
1363                         if (sbuf_len <= 0)
1364                                 {
1365                                 read_ssl=1;
1366                                 write_tty=0;
1367                                 }
1368                         }
1369                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1370                         {
1371 #ifdef RENEG
1372 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1373 #endif
1374 #if 1
1375                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1376 #else
1377 /* Demo for pending and peek :-) */
1378                         k=SSL_read(con,sbuf,16);
1379 { char zbuf[10240];
1380 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1381 }
1382 #endif
1383
1384                         switch (SSL_get_error(con,k))
1385                                 {
1386                         case SSL_ERROR_NONE:
1387                                 if (k <= 0)
1388                                         goto end;
1389                                 sbuf_off=0;
1390                                 sbuf_len=k;
1391
1392                                 read_ssl=0;
1393                                 write_tty=1;
1394                                 break;
1395                         case SSL_ERROR_WANT_WRITE:
1396                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1397                                 write_ssl=1;
1398                                 read_tty=0;
1399                                 break;
1400                         case SSL_ERROR_WANT_READ:
1401                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1402                                 write_tty=0;
1403                                 read_ssl=1;
1404                                 if ((read_tty == 0) && (write_ssl == 0))
1405                                         write_ssl=1;
1406                                 break;
1407                         case SSL_ERROR_WANT_X509_LOOKUP:
1408                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1409                                 break;
1410                         case SSL_ERROR_SYSCALL:
1411                                 ret=get_last_socket_error();
1412                                 BIO_printf(bio_err,"read:errno=%d\n",ret);
1413                                 goto shut;
1414                         case SSL_ERROR_ZERO_RETURN:
1415                                 BIO_printf(bio_c_out,"closed\n");
1416                                 ret=0;
1417                                 goto shut;
1418                         case SSL_ERROR_SSL:
1419                                 ERR_print_errors(bio_err);
1420                                 goto shut;
1421                                 /* break; */
1422                                 }
1423                         }
1424
1425 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1426 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1427                 else if (_kbhit())
1428 #else
1429                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1430 #endif
1431 #elif defined (OPENSSL_SYS_NETWARE)
1432                 else if (_kbhit())
1433 #elif defined(OPENSSL_SYS_BEOS_R5)
1434                 else if (stdin_set)
1435 #else
1436                 else if (FD_ISSET(fileno(stdin),&readfds))
1437 #endif
1438                         {
1439                         if (crlf)
1440                                 {
1441                                 int j, lf_num;
1442
1443                                 i=raw_read_stdin(cbuf,BUFSIZZ/2);
1444                                 lf_num = 0;
1445                                 /* both loops are skipped when i <= 0 */
1446                                 for (j = 0; j < i; j++)
1447                                         if (cbuf[j] == '\n')
1448                                                 lf_num++;
1449                                 for (j = i-1; j >= 0; j--)
1450                                         {
1451                                         cbuf[j+lf_num] = cbuf[j];
1452                                         if (cbuf[j] == '\n')
1453                                                 {
1454                                                 lf_num--;
1455                                                 i++;
1456                                                 cbuf[j+lf_num] = '\r';
1457                                                 }
1458                                         }
1459                                 assert(lf_num == 0);
1460                                 }
1461                         else
1462                                 i=raw_read_stdin(cbuf,BUFSIZZ);
1463
1464                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1465                                 {
1466                                 BIO_printf(bio_err,"DONE\n");
1467                                 ret=0;
1468                                 goto shut;
1469                                 }
1470
1471                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1472                                 {
1473                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1474                                 SSL_renegotiate(con);
1475                                 cbuf_len=0;
1476                                 }
1477                         else
1478                                 {
1479                                 cbuf_len=i;
1480                                 cbuf_off=0;
1481 #ifdef CHARSET_EBCDIC
1482                                 ebcdic2ascii(cbuf, cbuf, i);
1483 #endif
1484                                 }
1485
1486                         write_ssl=1;
1487                         read_tty=0;
1488                         }
1489                 }
1490
1491         ret=0;
1492 shut:
1493         if (in_init)
1494                 print_stuff(bio_c_out,con,full_log);
1495         SSL_shutdown(con);
1496         SHUTDOWN(SSL_get_fd(con));
1497 end:
1498         if (con != NULL)
1499                 {
1500                 if (prexit != 0)
1501                         print_stuff(bio_c_out,con,1);
1502                 SSL_free(con);
1503                 }
1504         if (ctx != NULL) SSL_CTX_free(ctx);
1505         if (cert)
1506                 X509_free(cert);
1507         if (key)
1508                 EVP_PKEY_free(key);
1509         if (pass)
1510                 OPENSSL_free(pass);
1511         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1512         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1513         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1514         if (bio_c_out != NULL)
1515                 {
1516                 BIO_free(bio_c_out);
1517                 bio_c_out=NULL;
1518                 }
1519         apps_shutdown();
1520         OPENSSL_EXIT(ret);
1521         }
1522
1523
1524 static void print_stuff(BIO *bio, SSL *s, int full)
1525         {
1526         X509 *peer=NULL;
1527         char *p;
1528         static const char *space="                ";
1529         char buf[BUFSIZ];
1530         STACK_OF(X509) *sk;
1531         STACK_OF(X509_NAME) *sk2;
1532         SSL_CIPHER *c;
1533         X509_NAME *xn;
1534         int j,i;
1535 #ifndef OPENSSL_NO_COMP
1536         const COMP_METHOD *comp, *expansion;
1537 #endif
1538
1539         if (full)
1540                 {
1541                 int got_a_chain = 0;
1542
1543                 sk=SSL_get_peer_cert_chain(s);
1544                 if (sk != NULL)
1545                         {
1546                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1547
1548                         BIO_printf(bio,"---\nCertificate chain\n");
1549                         for (i=0; i<sk_X509_num(sk); i++)
1550                                 {
1551                                 X509_NAME_oneline(X509_get_subject_name(
1552                                         sk_X509_value(sk,i)),buf,sizeof buf);
1553                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1554                                 X509_NAME_oneline(X509_get_issuer_name(
1555                                         sk_X509_value(sk,i)),buf,sizeof buf);
1556                                 BIO_printf(bio,"   i:%s\n",buf);
1557                                 if (c_showcerts)
1558                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1559                                 }
1560                         }
1561
1562                 BIO_printf(bio,"---\n");
1563                 peer=SSL_get_peer_certificate(s);
1564                 if (peer != NULL)
1565                         {
1566                         BIO_printf(bio,"Server certificate\n");
1567                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1568                                 PEM_write_bio_X509(bio,peer);
1569                         X509_NAME_oneline(X509_get_subject_name(peer),
1570                                 buf,sizeof buf);
1571                         BIO_printf(bio,"subject=%s\n",buf);
1572                         X509_NAME_oneline(X509_get_issuer_name(peer),
1573                                 buf,sizeof buf);
1574                         BIO_printf(bio,"issuer=%s\n",buf);
1575                         }
1576                 else
1577                         BIO_printf(bio,"no peer certificate available\n");
1578
1579                 sk2=SSL_get_client_CA_list(s);
1580                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1581                         {
1582                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1583                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1584                                 {
1585                                 xn=sk_X509_NAME_value(sk2,i);
1586                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1587                                 BIO_write(bio,buf,strlen(buf));
1588                                 BIO_write(bio,"\n",1);
1589                                 }
1590                         }
1591                 else
1592                         {
1593                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1594                         }
1595                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1596                 if (p != NULL)
1597                         {
1598                         /* This works only for SSL 2.  In later protocol
1599                          * versions, the client does not know what other
1600                          * ciphers (in addition to the one to be used
1601                          * in the current connection) the server supports. */
1602
1603                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1604                         j=i=0;
1605                         while (*p)
1606                                 {
1607                                 if (*p == ':')
1608                                         {
1609                                         BIO_write(bio,space,15-j%25);
1610                                         i++;
1611                                         j=0;
1612                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1613                                         }
1614                                 else
1615                                         {
1616                                         BIO_write(bio,p,1);
1617                                         j++;
1618                                         }
1619                                 p++;
1620                                 }
1621                         BIO_write(bio,"\n",1);
1622                         }
1623
1624                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1625                         BIO_number_read(SSL_get_rbio(s)),
1626                         BIO_number_written(SSL_get_wbio(s)));
1627                 }
1628         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1629         c=SSL_get_current_cipher(s);
1630         BIO_printf(bio,"%s, Cipher is %s\n",
1631                 SSL_CIPHER_get_version(c),
1632                 SSL_CIPHER_get_name(c));
1633         if (peer != NULL) {
1634                 EVP_PKEY *pktmp;
1635                 pktmp = X509_get_pubkey(peer);
1636                 BIO_printf(bio,"Server public key is %d bit\n",
1637                                                          EVP_PKEY_bits(pktmp));
1638                 EVP_PKEY_free(pktmp);
1639         }
1640 #ifndef OPENSSL_NO_COMP
1641         comp=SSL_get_current_compression(s);
1642         expansion=SSL_get_current_expansion(s);
1643         BIO_printf(bio,"Compression: %s\n",
1644                 comp ? SSL_COMP_get_name(comp) : "NONE");
1645         BIO_printf(bio,"Expansion: %s\n",
1646                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1647 #endif
1648         SSL_SESSION_print(bio,SSL_get_session(s));
1649         BIO_printf(bio,"---\n");
1650         if (peer != NULL)
1651                 X509_free(peer);
1652         /* flush, or debugging output gets mixed with http response */
1653         (void)BIO_flush(bio);
1654         }
1655
1656 static int ocsp_resp_cb(SSL *s, void *arg)
1657         {
1658         const unsigned char *p;
1659         int len;
1660         OCSP_RESPONSE *rsp;
1661         len = SSL_get_tlsext_status_ocsp_resp(s, &p);
1662         BIO_puts(arg, "OCSP response: ");
1663         if (!p)
1664                 {
1665                 BIO_puts(arg, "no response sent\n");
1666                 return 1;
1667                 }
1668         rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
1669         if (!rsp)
1670                 {
1671                 BIO_puts(arg, "response parse error\n");
1672                 BIO_dump_indent(arg, (char *)p, len, 4);
1673                 return 0;
1674                 }
1675         BIO_puts(arg, "\n======================================\n");
1676         OCSP_RESPONSE_print(arg, rsp, 0);
1677         BIO_puts(arg, "======================================\n");
1678         OCSP_RESPONSE_free(rsp);
1679         return 1;
1680         }