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) 1998-2001 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 #include <assert.h>
 113 #include <stdio.h>
 114 #include <stdlib.h>
 115 #include <string.h>
 116 #include <openssl/e_os2.h>
 117 #ifdef OPENSSL_NO_STDIO
 118 #define APPS_WIN16
 119 #endif
 120
 121 /* With IPv6, it looks like Digital has mixed up the proper order of
 122    recursive header file inclusion, resulting in the compiler complaining
 123    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 124    is needed to have fileno() declared correctly...  So let's define u_int */
 125 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 126 #define __U_INT
 127 typedef unsigned int u_int;
 128 #endif
 129
 130 #define USE_SOCKETS
 131 #include "apps.h"
 132 #include <openssl/x509.h>
 133 #include <openssl/ssl.h>
 134 #include <openssl/err.h>
 135 #include <openssl/pem.h>
 136 #include <openssl/rand.h>
 137 #include <openssl/ocsp.h>
 138 #include "s_apps.h"
 139 #include "timeouts.h"
 140
 141 #ifdef OPENSSL_SYS_WINCE
 142 /* Windows CE incorrectly defines fileno as returning void*, so to avoid problems below... */
 143 #ifdef fileno
 144 #undef fileno
 145 #endif
 146 #define fileno(a) (int)_fileno(a)
 147 #endif
 148
 149
 150 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 151 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 152 #undef FIONBIO
 153 #endif
 154
 155 #undef PROG
 156 #define PROG    s_client_main
 157
 158 /*#define SSL_HOST_NAME "www.netscape.com" */
 159 /*#define SSL_HOST_NAME "193.118.187.102" */
 160 #define SSL_HOST_NAME   "localhost"
 161
 162 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 163
 164 #undef BUFSIZZ
 165 #define BUFSIZZ 1024*8
 166
 167 extern int verify_depth;
 168 extern int verify_error;
 169
 170 #ifdef FIONBIO
 171 static int c_nbio=0;
 172 #endif
 173 static int c_Pause=0;
 174 static int c_debug=0;
 175 #ifndef OPENSSL_NO_TLSEXT
 176 static int c_tlsextdebug=0;
 177 static int c_status_req=0;
 178 #endif
 179 static int c_msg=0;
 180 static int c_showcerts=0;
 181
 182 static void sc_usage(void);
 183 static void print_stuff(BIO *berr,SSL *con,int full);
 184 #ifndef OPENSSL_NO_TLSEXT
 185 static int ocsp_resp_cb(SSL *s, void *arg);
 186 #endif
 187 static BIO *bio_c_out=NULL;
 188 static int c_quiet=0;
 189 static int c_ign_eof=0;
 190
 191 static void sc_usage(void)
 192         {
 193         BIO_printf(bio_err,"usage: s_client args\n");
 194         BIO_printf(bio_err,"\n");
 195         BIO_printf(bio_err," -host host     - use -connect instead\n");
 196         BIO_printf(bio_err," -port port     - use -connect instead\n");
 197         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 198
 199         BIO_printf(bio_err," -verify depth - turn on peer certificate verification\n");
 200         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 201         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 202         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 203         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 204         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 205         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 206         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 207         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 208         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 209         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 210         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 211         BIO_printf(bio_err," -debug        - extra output\n");
 212 #ifdef WATT32
 213         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 214 #endif
 215         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 216         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 217         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 218 #ifdef FIONBIO
 219         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 220 #endif
 221         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 222         BIO_printf(bio_err," -quiet        - no s_client output\n");
 223         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 224         BIO_printf(bio_err," -no_ign_eof   - don't ignore input eof\n");
 225         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 226         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 227         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 228         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 229         BIO_printf(bio_err," -mtu          - set the MTU\n");
 230         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 231         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 232         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 233         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 234         BIO_printf(bio_err,"                 command to see what is available\n");
 235         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 236         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 237         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 238         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
 239         BIO_printf(bio_err,"                 are supported.\n");
 240 #ifndef OPENSSL_NO_ENGINE
 241         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 242 #endif
 243         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 244         BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
 245         BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
 246 #ifndef OPENSSL_NO_TLSEXT
 247         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 248         BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
 249         BIO_printf(bio_err," -status           - request certificate status from server\n");
 250         BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
 251 #endif
 252         }
 253
 254 #ifndef OPENSSL_NO_TLSEXT
 255
 256 /* This is a context that we pass to callbacks */
 257 typedef struct tlsextctx_st {
 258    BIO * biodebug;
 259    int ack;
 260 } tlsextctx;
 261
 262
 263 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 264         {
 265         tlsextctx * p = (tlsextctx *) arg;
 266         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 267         if (SSL_get_servername_type(s) != -1)
 268                 p->ack = !SSL_session_reused(s) && hn != NULL;
 269         else
 270                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 271
 272         return SSL_TLSEXT_ERR_OK;
 273         }
 274 #endif
 275 enum
 276 {
 277         PROTO_OFF       = 0,
 278         PROTO_SMTP,
 279         PROTO_POP3,
 280         PROTO_IMAP,
 281         PROTO_FTP,
 282         PROTO_XMPP
 283 };
 284
 285 int MAIN(int, char **);
 286
 287 int MAIN(int argc, char **argv)
 288         {
 289         int off=0;
 290         SSL *con=NULL,*con2=NULL;
 291         X509_STORE *store = NULL;
 292         int s,k,width,state=0;
 293         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 294         int cbuf_len,cbuf_off;
 295         int sbuf_len,sbuf_off;
 296         fd_set readfds,writefds;
 297         short port=PORT;
 298         int full_log=1;
 299         char *host=SSL_HOST_NAME;
 300         char *cert_file=NULL,*key_file=NULL;
 301         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 302         char *passarg = NULL, *pass = NULL;
 303         X509 *cert = NULL;
 304         EVP_PKEY *key = NULL;
 305         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 306         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 307         int crlf=0;
 308         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 309         SSL_CTX *ctx=NULL;
 310         int ret=1,in_init=1,i,nbio_test=0;
 311         int starttls_proto = PROTO_OFF;
 312         int prexit = 0, vflags = 0;
 313         SSL_METHOD *meth=NULL;
 314 #ifdef sock_type
 315 #undef sock_type
 316 #endif
 317         int sock_type=SOCK_STREAM;
 318         BIO *sbio;
 319         char *inrand=NULL;
 320         int mbuf_len=0;
 321 #ifndef OPENSSL_NO_ENGINE
 322         char *engine_id=NULL;
 323         char *ssl_client_engine_id=NULL;
 324         ENGINE *e=NULL, *ssl_client_engine=NULL;
 325 #endif
 326 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
 327         struct timeval tv;
 328 #endif
 329
 330 #ifndef OPENSSL_NO_TLSEXT
 331         char *servername = NULL;
 332         tlsextctx tlsextcbp =
 333         {NULL,0};
 334 #endif
 335         char *sess_in = NULL;
 336         char *sess_out = NULL;
 337         struct sockaddr peer;
 338         int peerlen = sizeof(peer);
 339         int enable_timeouts = 0 ;
 340         long mtu = 0;
 341         char *jpake_secret = NULL;
 342
 343 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 344         meth=SSLv23_client_method();
 345 #elif !defined(OPENSSL_NO_SSL3)
 346         meth=SSLv3_client_method();
 347 #elif !defined(OPENSSL_NO_SSL2)
 348         meth=SSLv2_client_method();
 349 #endif
 350
 351         apps_startup();
 352         c_Pause=0;
 353         c_quiet=0;
 354         c_ign_eof=0;
 355         c_debug=0;
 356         c_msg=0;
 357         c_showcerts=0;
 358
 359         if (bio_err == NULL)
 360                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 361
 362         if (!load_config(bio_err, NULL))
 363                 goto end;
 364
 365         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 366                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 367                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 368                 {
 369                 BIO_printf(bio_err,"out of memory\n");
 370                 goto end;
 371                 }
 372
 373         verify_depth=0;
 374         verify_error=X509_V_OK;
 375 #ifdef FIONBIO
 376         c_nbio=0;
 377 #endif
 378
 379         argc--;
 380         argv++;
 381         while (argc >= 1)
 382                 {
 383                 if      (strcmp(*argv,"-host") == 0)
 384                         {
 385                         if (--argc < 1) goto bad;
 386                         host= *(++argv);
 387                         }
 388                 else if (strcmp(*argv,"-port") == 0)
 389                         {
 390                         if (--argc < 1) goto bad;
 391                         port=atoi(*(++argv));
 392                         if (port == 0) goto bad;
 393                         }
 394                 else if (strcmp(*argv,"-connect") == 0)
 395                         {
 396                         if (--argc < 1) goto bad;
 397                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 398                                 goto bad;
 399                         }
 400                 else if (strcmp(*argv,"-verify") == 0)
 401                         {
 402                         verify=SSL_VERIFY_PEER;
 403                         if (--argc < 1) goto bad;
 404                         verify_depth=atoi(*(++argv));
 405                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 406                         }
 407                 else if (strcmp(*argv,"-cert") == 0)
 408                         {
 409                         if (--argc < 1) goto bad;
 410                         cert_file= *(++argv);
 411                         }
 412                 else if (strcmp(*argv,"-sess_out") == 0)
 413                         {
 414                         if (--argc < 1) goto bad;
 415                         sess_out = *(++argv);
 416                         }
 417                 else if (strcmp(*argv,"-sess_in") == 0)
 418                         {
 419                         if (--argc < 1) goto bad;
 420                         sess_in = *(++argv);
 421                         }
 422                 else if (strcmp(*argv,"-certform") == 0)
 423                         {
 424                         if (--argc < 1) goto bad;
 425                         cert_format = str2fmt(*(++argv));
 426                         }
 427                 else if (strcmp(*argv,"-crl_check") == 0)
 428                         vflags |= X509_V_FLAG_CRL_CHECK;
 429                 else if (strcmp(*argv,"-crl_check_all") == 0)
 430                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 431                 else if (strcmp(*argv,"-prexit") == 0)
 432                         prexit=1;
 433                 else if (strcmp(*argv,"-crlf") == 0)
 434                         crlf=1;
 435                 else if (strcmp(*argv,"-quiet") == 0)
 436                         {
 437                         c_quiet=1;
 438                         c_ign_eof=1;
 439                         }
 440                 else if (strcmp(*argv,"-ign_eof") == 0)
 441                         c_ign_eof=1;
 442                 else if (strcmp(*argv,"-no_ign_eof") == 0)
 443                         c_ign_eof=0;
 444                 else if (strcmp(*argv,"-pause") == 0)
 445                         c_Pause=1;
 446                 else if (strcmp(*argv,"-debug") == 0)
 447                         c_debug=1;
 448 #ifndef OPENSSL_NO_TLSEXT
 449                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 450                         c_tlsextdebug=1;
 451                 else if (strcmp(*argv,"-status") == 0)
 452                         c_status_req=1;
 453 #endif
 454 #ifdef WATT32
 455                 else if (strcmp(*argv,"-wdebug") == 0)
 456                         dbug_init();
 457 #endif
 458                 else if (strcmp(*argv,"-msg") == 0)
 459                         c_msg=1;
 460                 else if (strcmp(*argv,"-showcerts") == 0)
 461                         c_showcerts=1;
 462                 else if (strcmp(*argv,"-nbio_test") == 0)
 463                         nbio_test=1;
 464                 else if (strcmp(*argv,"-state") == 0)
 465                         state=1;
 466 #ifndef OPENSSL_NO_SSL2
 467                 else if (strcmp(*argv,"-ssl2") == 0)
 468                         meth=SSLv2_client_method();
 469 #endif
 470 #ifndef OPENSSL_NO_SSL3
 471                 else if (strcmp(*argv,"-ssl3") == 0)
 472                         meth=SSLv3_client_method();
 473 #endif
 474 #ifndef OPENSSL_NO_TLS1
 475                 else if (strcmp(*argv,"-tls1") == 0)
 476                         meth=TLSv1_client_method();
 477 #endif
 478 #ifndef OPENSSL_NO_DTLS1
 479                 else if (strcmp(*argv,"-dtls1") == 0)
 480                         {
 481                         meth=DTLSv1_client_method();
 482                         sock_type=SOCK_DGRAM;
 483                         }
 484                 else if (strcmp(*argv,"-timeout") == 0)
 485                         enable_timeouts=1;
 486                 else if (strcmp(*argv,"-mtu") == 0)
 487                         {
 488                         if (--argc < 1) goto bad;
 489                         mtu = atol(*(++argv));
 490                         }
 491 #endif
 492                 else if (strcmp(*argv,"-bugs") == 0)
 493                         bugs=1;
 494                 else if (strcmp(*argv,"-keyform") == 0)
 495                         {
 496                         if (--argc < 1) goto bad;
 497                         key_format = str2fmt(*(++argv));
 498                         }
 499                 else if (strcmp(*argv,"-pass") == 0)
 500                         {
 501                         if (--argc < 1) goto bad;
 502                         passarg = *(++argv);
 503                         }
 504                 else if (strcmp(*argv,"-key") == 0)
 505                         {
 506                         if (--argc < 1) goto bad;
 507                         key_file= *(++argv);
 508                         }
 509                 else if (strcmp(*argv,"-reconnect") == 0)
 510                         {
 511                         reconnect=5;
 512                         }
 513                 else if (strcmp(*argv,"-CApath") == 0)
 514                         {
 515                         if (--argc < 1) goto bad;
 516                         CApath= *(++argv);
 517                         }
 518                 else if (strcmp(*argv,"-CAfile") == 0)
 519                         {
 520                         if (--argc < 1) goto bad;
 521                         CAfile= *(++argv);
 522                         }
 523                 else if (strcmp(*argv,"-no_tls1") == 0)
 524                         off|=SSL_OP_NO_TLSv1;
 525                 else if (strcmp(*argv,"-no_ssl3") == 0)
 526                         off|=SSL_OP_NO_SSLv3;
 527                 else if (strcmp(*argv,"-no_ssl2") == 0)
 528                         off|=SSL_OP_NO_SSLv2;
 529 #ifndef OPENSSL_NO_TLSEXT
 530                 else if (strcmp(*argv,"-no_ticket") == 0)
 531                         { off|=SSL_OP_NO_TICKET; }
 532 #endif
 533                 else if (strcmp(*argv,"-serverpref") == 0)
 534                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 535                 else if (strcmp(*argv,"-cipher") == 0)
 536                         {
 537                         if (--argc < 1) goto bad;
 538                         cipher= *(++argv);
 539                         }
 540 #ifdef FIONBIO
 541                 else if (strcmp(*argv,"-nbio") == 0)
 542                         { c_nbio=1; }
 543 #endif
 544                 else if (strcmp(*argv,"-starttls") == 0)
 545                         {
 546                         if (--argc < 1) goto bad;
 547                         ++argv;
 548                         if (strcmp(*argv,"smtp") == 0)
 549                                 starttls_proto = PROTO_SMTP;
 550                         else if (strcmp(*argv,"pop3") == 0)
 551                                 starttls_proto = PROTO_POP3;
 552                         else if (strcmp(*argv,"imap") == 0)
 553                                 starttls_proto = PROTO_IMAP;
 554                         else if (strcmp(*argv,"ftp") == 0)
 555                                 starttls_proto = PROTO_FTP;
 556                         else if (strcmp(*argv, "xmpp") == 0)
 557                                 starttls_proto = PROTO_XMPP;
 558                         else
 559                                 goto bad;
 560                         }
 561 #ifndef OPENSSL_NO_ENGINE
 562                 else if (strcmp(*argv,"-engine") == 0)
 563                         {
 564                         if (--argc < 1) goto bad;
 565                         engine_id = *(++argv);
 566                         }
 567                 else if (strcmp(*argv,"-ssl_client_engine") == 0)
 568                         {
 569                         if (--argc < 1) goto bad;
 570                         ssl_client_engine_id = *(++argv);
 571                         }
 572 #endif
 573                 else if (strcmp(*argv,"-rand") == 0)
 574                         {
 575                         if (--argc < 1) goto bad;
 576                         inrand= *(++argv);
 577                         }
 578 #ifndef OPENSSL_NO_TLSEXT
 579                 else if (strcmp(*argv,"-servername") == 0)
 580                         {
 581                         if (--argc < 1) goto bad;
 582                         servername= *(++argv);
 583                         /* meth=TLSv1_client_method(); */
 584                         }
 585 #endif
 586                 else if (strcmp(*argv,"-jpake") == 0)
 587                         {
 588                         if (--argc < 1) goto bad;
 589                         jpake_secret = *++argv;
 590                         }
 591                 else
 592                         {
 593                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 594                         badop=1;
 595                         break;
 596                         }
 597                 argc--;
 598                 argv++;
 599                 }
 600         if (badop)
 601                 {
 602 bad:
 603                 sc_usage();
 604                 goto end;
 605                 }
 606
 607         OpenSSL_add_ssl_algorithms();
 608         SSL_load_error_strings();
 609
 610 #ifndef OPENSSL_NO_ENGINE
 611         e = setup_engine(bio_err, engine_id, 1);
 612         if (ssl_client_engine_id)
 613                 {
 614                 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
 615                 if (!ssl_client_engine)
 616                         {
 617                         BIO_printf(bio_err,
 618                                         "Error getting client auth engine\n");
 619                         goto end;
 620                         }
 621                 }
 622 #endif
 623         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
 624                 {
 625                 BIO_printf(bio_err, "Error getting password\n");
 626                 goto end;
 627                 }
 628
 629         if (key_file == NULL)
 630                 key_file = cert_file;
 631
 632
 633         if (key_file)
 634
 635                 {
 636
 637                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
 638                                "client certificate private key file");
 639                 if (!key)
 640                         {
 641                         ERR_print_errors(bio_err);
 642                         goto end;
 643                         }
 644
 645                 }
 646
 647         if (cert_file)
 648
 649                 {
 650                 cert = load_cert(bio_err,cert_file,cert_format,
 651                                 NULL, e, "client certificate file");
 652
 653                 if (!cert)
 654                         {
 655                         ERR_print_errors(bio_err);
 656                         goto end;
 657                         }
 658                 }
 659
 660         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 661                 && !RAND_status())
 662                 {
 663                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 664                 }
 665         if (inrand != NULL)
 666                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 667                         app_RAND_load_files(inrand));
 668
 669         if (bio_c_out == NULL)
 670                 {
 671                 if (c_quiet && !c_debug && !c_msg)
 672                         {
 673                         bio_c_out=BIO_new(BIO_s_null());
 674                         }
 675                 else
 676                         {
 677                         if (bio_c_out == NULL)
 678                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 679                         }
 680                 }
 681
 682         ctx=SSL_CTX_new(meth);
 683         if (ctx == NULL)
 684                 {
 685                 ERR_print_errors(bio_err);
 686                 goto end;
 687                 }
 688
 689 #ifndef OPENSSL_NO_ENGINE
 690         if (ssl_client_engine)
 691                 {
 692                 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine))
 693                         {
 694                         BIO_puts(bio_err, "Error setting client auth engine\n");
 695                         ERR_print_errors(bio_err);
 696                         ENGINE_free(ssl_client_engine);
 697                         goto end;
 698                         }
 699                 ENGINE_free(ssl_client_engine);
 700                 }
 701 #endif
 702
 703         if (bugs)
 704                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 705         else
 706                 SSL_CTX_set_options(ctx,off);
 707         /* DTLS: partial reads end up discarding unread UDP bytes :-(
 708          * Setting read ahead solves this problem.
 709          */
 710         if (sock_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
 711
 712         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 713         if (cipher != NULL)
 714                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 715                 BIO_printf(bio_err,"error setting cipher list\n");
 716                 ERR_print_errors(bio_err);
 717                 goto end;
 718         }
 719 #if 0
 720         else
 721                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 722 #endif
 723
 724         SSL_CTX_set_verify(ctx,verify,verify_callback);
 725         if (!set_cert_key_stuff(ctx,cert,key))
 726                 goto end;
 727
 728         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 729                 (!SSL_CTX_set_default_verify_paths(ctx)))
 730                 {
 731                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 732                 ERR_print_errors(bio_err);
 733                 /* goto end; */
 734                 }
 735
 736         store = SSL_CTX_get_cert_store(ctx);
 737         X509_STORE_set_flags(store, vflags);
 738 #ifndef OPENSSL_NO_TLSEXT
 739         if (servername != NULL)
 740                 {
 741                 tlsextcbp.biodebug = bio_err;
 742                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
 743                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
 744                 }
 745 #endif
 746
 747         con=SSL_new(ctx);
 748         if (sess_in)
 749                 {
 750                 SSL_SESSION *sess;
 751                 BIO *stmp = BIO_new_file(sess_in, "r");
 752                 if (!stmp)
 753                         {
 754                         BIO_printf(bio_err, "Can't open session file %s\n",
 755                                                 sess_in);
 756                         ERR_print_errors(bio_err);
 757                         goto end;
 758                         }
 759                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
 760                 BIO_free(stmp);
 761                 if (!sess)
 762                         {
 763                         BIO_printf(bio_err, "Can't open session file %s\n",
 764                                                 sess_in);
 765                         ERR_print_errors(bio_err);
 766                         goto end;
 767                         }
 768                 SSL_set_session(con, sess);
 769                 SSL_SESSION_free(sess);
 770                 }
 771 #ifndef OPENSSL_NO_TLSEXT
 772         if (servername != NULL)
 773                 {
 774                 if (!SSL_set_tlsext_host_name(con,servername))
 775                         {
 776                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
 777                         ERR_print_errors(bio_err);
 778                         goto end;
 779                         }
 780                 }
 781 #endif
 782
 783 #ifndef OPENSSL_NO_KRB5
 784         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 785                 {
 786                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 787                 }
 788 #endif  /* OPENSSL_NO_KRB5  */
 789 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 790
 791 re_start:
 792
 793         if (init_client(&s,host,port,sock_type) == 0)
 794                 {
 795                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 796                 SHUTDOWN(s);
 797                 goto end;
 798                 }
 799         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 800
 801 #ifdef FIONBIO
 802         if (c_nbio)
 803                 {
 804                 unsigned long l=1;
 805                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 806                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 807                         {
 808                         ERR_print_errors(bio_err);
 809                         goto end;
 810                         }
 811                 }
 812 #endif
 813         if (c_Pause & 0x01) con->debug=1;
 814
 815         if ( SSL_version(con) == DTLS1_VERSION)
 816                 {
 817                 struct timeval timeout;
 818
 819                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
 820                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
 821                         {
 822                         BIO_printf(bio_err, "getsockname:errno=%d\n",
 823                                 get_last_socket_error());
 824                         SHUTDOWN(s);
 825                         goto end;
 826                         }
 827
 828                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
 829
 830                 if ( enable_timeouts)
 831                         {
 832                         timeout.tv_sec = 0;
 833                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
 834                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
 835
 836                         timeout.tv_sec = 0;
 837                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
 838                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
 839                         }
 840
 841                 if ( mtu > 0)
 842                         {
 843                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
 844                         SSL_set_mtu(con, mtu);
 845                         }
 846                 else
 847                         /* want to do MTU discovery */
 848                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
 849                 }
 850         else
 851                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
 852
 853         if (nbio_test)
 854                 {
 855                 BIO *test;
 856
 857                 test=BIO_new(BIO_f_nbio_test());
 858                 sbio=BIO_push(test,sbio);
 859                 }
 860
 861         if (c_debug)
 862                 {
 863                 con->debug=1;
 864                 BIO_set_callback(sbio,bio_dump_callback);
 865                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
 866                 }
 867         if (c_msg)
 868                 {
 869                 SSL_set_msg_callback(con, msg_cb);
 870                 SSL_set_msg_callback_arg(con, bio_c_out);
 871                 }
 872 #ifndef OPENSSL_NO_TLSEXT
 873         if (c_tlsextdebug)
 874                 {
 875                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
 876                 SSL_set_tlsext_debug_arg(con, bio_c_out);
 877                 }
 878         if (c_status_req)
 879                 {
 880                 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
 881                 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
 882                 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
 883 #if 0
 884 {
 885 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
 886 OCSP_RESPID *id = OCSP_RESPID_new();
 887 id->value.byKey = ASN1_OCTET_STRING_new();
 888 id->type = V_OCSP_RESPID_KEY;
 889 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
 890 sk_OCSP_RESPID_push(ids, id);
 891 SSL_set_tlsext_status_ids(con, ids);
 892 }
 893 #endif
 894                 }
 895 #endif
 896
 897         if (jpake_secret)
 898                 jpake_client_auth(bio_c_out, sbio, jpake_secret);
 899
 900         SSL_set_bio(con,sbio,sbio);
 901         SSL_set_connect_state(con);
 902
 903         /* ok, lets connect */
 904         width=SSL_get_fd(con)+1;
 905
 906         read_tty=1;
 907         write_tty=0;
 908         tty_on=0;
 909         read_ssl=1;
 910         write_ssl=1;
 911
 912         cbuf_len=0;
 913         cbuf_off=0;
 914         sbuf_len=0;
 915         sbuf_off=0;
 916
 917         /* This is an ugly hack that does a lot of assumptions */
 918         /* We do have to handle multi-line responses which may come
 919            in a single packet or not. We therefore have to use
 920            BIO_gets() which does need a buffering BIO. So during
 921            the initial chitchat we do push a buffering BIO into the
 922            chain that is removed again later on to not disturb the
 923            rest of the s_client operation. */
 924         if (starttls_proto == PROTO_SMTP)
 925                 {
 926                 int foundit=0;
 927                 BIO *fbio = BIO_new(BIO_f_buffer());
 928                 BIO_push(fbio, sbio);
 929                 /* wait for multi-line response to end from SMTP */
 930                 do
 931                         {
 932                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 933                         }
 934                 while (mbuf_len>3 && mbuf[3]=='-');
 935                 /* STARTTLS command requires EHLO... */
 936                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
 937                 (void)BIO_flush(fbio);
 938                 /* wait for multi-line response to end EHLO SMTP response */
 939                 do
 940                         {
 941                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 942                         if (strstr(mbuf,"STARTTLS"))
 943                                 foundit=1;
 944                         }
 945                 while (mbuf_len>3 && mbuf[3]=='-');
 946                 (void)BIO_flush(fbio);
 947                 BIO_pop(fbio);
 948                 BIO_free(fbio);
 949                 if (!foundit)
 950                         BIO_printf(bio_err,
 951                                    "didn't found starttls in server response,"
 952                                    " try anyway...\n");
 953                 BIO_printf(sbio,"STARTTLS\r\n");
 954                 BIO_read(sbio,sbuf,BUFSIZZ);
 955                 }
 956         else if (starttls_proto == PROTO_POP3)
 957                 {
 958                 BIO_read(sbio,mbuf,BUFSIZZ);
 959                 BIO_printf(sbio,"STLS\r\n");
 960                 BIO_read(sbio,sbuf,BUFSIZZ);
 961                 }
 962         else if (starttls_proto == PROTO_IMAP)
 963                 {
 964                 int foundit=0;
 965                 BIO *fbio = BIO_new(BIO_f_buffer());
 966                 BIO_push(fbio, sbio);
 967                 BIO_gets(fbio,mbuf,BUFSIZZ);
 968                 /* STARTTLS command requires CAPABILITY... */
 969                 BIO_printf(fbio,". CAPABILITY\r\n");
 970                 (void)BIO_flush(fbio);
 971                 /* wait for multi-line CAPABILITY response */
 972                 do
 973                         {
 974                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 975                         if (strstr(mbuf,"STARTTLS"))
 976                                 foundit=1;
 977                         }
 978                 while (mbuf_len>3 && mbuf[0]!='.');
 979                 (void)BIO_flush(fbio);
 980                 BIO_pop(fbio);
 981                 BIO_free(fbio);
 982                 if (!foundit)
 983                         BIO_printf(bio_err,
 984                                    "didn't found STARTTLS in server response,"
 985                                    " try anyway...\n");
 986                 BIO_printf(sbio,". STARTTLS\r\n");
 987                 BIO_read(sbio,sbuf,BUFSIZZ);
 988                 }
 989         else if (starttls_proto == PROTO_FTP)
 990                 {
 991                 BIO *fbio = BIO_new(BIO_f_buffer());
 992                 BIO_push(fbio, sbio);
 993                 /* wait for multi-line response to end from FTP */
 994                 do
 995                         {
 996                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 997                         }
 998                 while (mbuf_len>3 && mbuf[3]=='-');
 999                 (void)BIO_flush(fbio);
1000                 BIO_pop(fbio);
1001                 BIO_free(fbio);
1002                 BIO_printf(sbio,"AUTH TLS\r\n");
1003                 BIO_read(sbio,sbuf,BUFSIZZ);
1004                 }
1005         if (starttls_proto == PROTO_XMPP)
1006                 {
1007                 int seen = 0;
1008                 BIO_printf(sbio,"<stream:stream "
1009                     "xmlns:stream='http://etherx.jabber.org/streams' "
1010                     "xmlns='jabber:client' to='%s' version='1.0'>", host);
1011                 seen = BIO_read(sbio,mbuf,BUFSIZZ);
1012                 mbuf[seen] = 0;
1013                 while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'"))
1014                         {
1015                         if (strstr(mbuf, "/stream:features>"))
1016                                 goto shut;
1017                         seen = BIO_read(sbio,mbuf,BUFSIZZ);
1018                         mbuf[seen] = 0;
1019                         }
1020                 BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
1021                 seen = BIO_read(sbio,sbuf,BUFSIZZ);
1022                 sbuf[seen] = 0;
1023                 if (!strstr(sbuf, "<proceed"))
1024                         goto shut;
1025                 mbuf[0] = 0;
1026                 }
1027
1028         for (;;)
1029                 {
1030                 FD_ZERO(&readfds);
1031                 FD_ZERO(&writefds);
1032
1033                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1034                         {
1035                         in_init=1;
1036                         tty_on=0;
1037                         }
1038                 else
1039                         {
1040                         tty_on=1;
1041                         if (in_init)
1042                                 {
1043                                 in_init=0;
1044                                 if (sess_out)
1045                                         {
1046                                         BIO *stmp = BIO_new_file(sess_out, "w");
1047                                         if (stmp)
1048                                                 {
1049                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1050                                                 BIO_free(stmp);
1051                                                 }
1052                                         else
1053                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1054                                         }
1055                                 print_stuff(bio_c_out,con,full_log);
1056                                 if (full_log > 0) full_log--;
1057
1058                                 if (starttls_proto)
1059                                         {
1060                                         BIO_printf(bio_err,"%s",mbuf);
1061                                         /* We don't need to know any more */
1062                                         starttls_proto = PROTO_OFF;
1063                                         }
1064
1065                                 if (reconnect)
1066                                         {
1067                                         reconnect--;
1068                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1069                                         SSL_shutdown(con);
1070                                         SSL_set_connect_state(con);
1071                                         SHUTDOWN(SSL_get_fd(con));
1072                                         goto re_start;
1073                                         }
1074                                 }
1075                         }
1076
1077                 ssl_pending = read_ssl && SSL_pending(con);
1078
1079                 if (!ssl_pending)
1080                         {
1081 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)
1082                         if (tty_on)
1083                                 {
1084                                 if (read_tty)  FD_SET(fileno(stdin),&readfds);
1085                                 if (write_tty) FD_SET(fileno(stdout),&writefds);
1086                                 }
1087                         if (read_ssl)
1088                                 FD_SET(SSL_get_fd(con),&readfds);
1089                         if (write_ssl)
1090                                 FD_SET(SSL_get_fd(con),&writefds);
1091 #else
1092                         if(!tty_on || !write_tty) {
1093                                 if (read_ssl)
1094                                         FD_SET(SSL_get_fd(con),&readfds);
1095                                 if (write_ssl)
1096                                         FD_SET(SSL_get_fd(con),&writefds);
1097                         }
1098 #endif
1099 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1100                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1101
1102                         /* Note: under VMS with SOCKETSHR the second parameter
1103                          * is currently of type (int *) whereas under other
1104                          * systems it is (void *) if you don't have a cast it
1105                          * will choke the compiler: if you do have a cast then
1106                          * you can either go for (int *) or (void *).
1107                          */
1108 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1109                         /* Under Windows/DOS we make the assumption that we can
1110                          * always write to the tty: therefore if we need to
1111                          * write to the tty we just fall through. Otherwise
1112                          * we timeout the select every second and see if there
1113                          * are any keypresses. Note: this is a hack, in a proper
1114                          * Windows application we wouldn't do this.
1115                          */
1116                         i=0;
1117                         if(!write_tty) {
1118                                 if(read_tty) {
1119                                         tv.tv_sec = 1;
1120                                         tv.tv_usec = 0;
1121                                         i=select(width,(void *)&readfds,(void *)&writefds,
1122                                                  NULL,&tv);
1123 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1124                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1125 #else
1126                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1127 #endif
1128                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1129                                          NULL,NULL);
1130                         }
1131 #elif defined(OPENSSL_SYS_NETWARE)
1132                         if(!write_tty) {
1133                                 if(read_tty) {
1134                                         tv.tv_sec = 1;
1135                                         tv.tv_usec = 0;
1136                                         i=select(width,(void *)&readfds,(void *)&writefds,
1137                                                 NULL,&tv);
1138                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1139                                         NULL,NULL);
1140                         }
1141 #else
1142                         i=select(width,(void *)&readfds,(void *)&writefds,
1143                                  NULL,NULL);
1144 #endif
1145                         if ( i < 0)
1146                                 {
1147                                 BIO_printf(bio_err,"bad select %d\n",
1148                                 get_last_socket_error());
1149                                 goto shut;
1150                                 /* goto end; */
1151                                 }
1152                         }
1153
1154                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1155                         {
1156                         k=SSL_write(con,&(cbuf[cbuf_off]),
1157                                 (unsigned int)cbuf_len);
1158                         switch (SSL_get_error(con,k))
1159                                 {
1160                         case SSL_ERROR_NONE:
1161                                 cbuf_off+=k;
1162                                 cbuf_len-=k;
1163                                 if (k <= 0) goto end;
1164                                 /* we have done a  write(con,NULL,0); */
1165                                 if (cbuf_len <= 0)
1166                                         {
1167                                         read_tty=1;
1168                                         write_ssl=0;
1169                                         }
1170                                 else /* if (cbuf_len > 0) */
1171                                         {
1172                                         read_tty=0;
1173                                         write_ssl=1;
1174                                         }
1175                                 break;
1176                         case SSL_ERROR_WANT_WRITE:
1177                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1178                                 write_ssl=1;
1179                                 read_tty=0;
1180                                 break;
1181                         case SSL_ERROR_WANT_READ:
1182                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1183                                 write_tty=0;
1184                                 read_ssl=1;
1185                                 write_ssl=0;
1186                                 break;
1187                         case SSL_ERROR_WANT_X509_LOOKUP:
1188                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1189                                 break;
1190                         case SSL_ERROR_ZERO_RETURN:
1191                                 if (cbuf_len != 0)
1192                                         {
1193                                         BIO_printf(bio_c_out,"shutdown\n");
1194                                         goto shut;
1195                                         }
1196                                 else
1197                                         {
1198                                         read_tty=1;
1199                                         write_ssl=0;
1200                                         break;
1201                                         }
1202
1203                         case SSL_ERROR_SYSCALL:
1204                                 if ((k != 0) || (cbuf_len != 0))
1205                                         {
1206                                         BIO_printf(bio_err,"write:errno=%d\n",
1207                                                 get_last_socket_error());
1208                                         goto shut;
1209                                         }
1210                                 else
1211                                         {
1212                                         read_tty=1;
1213                                         write_ssl=0;
1214                                         }
1215                                 break;
1216                         case SSL_ERROR_SSL:
1217                                 ERR_print_errors(bio_err);
1218                                 goto shut;
1219                                 }
1220                         }
1221 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
1222                 /* Assume Windows/DOS can always write */
1223                 else if (!ssl_pending && write_tty)
1224 #else
1225                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1226 #endif
1227                         {
1228 #ifdef CHARSET_EBCDIC
1229                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1230 #endif
1231                         i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
1232
1233                         if (i <= 0)
1234                                 {
1235                                 BIO_printf(bio_c_out,"DONE\n");
1236                                 goto shut;
1237                                 /* goto end; */
1238                                 }
1239
1240                         sbuf_len-=i;;
1241                         sbuf_off+=i;
1242                         if (sbuf_len <= 0)
1243                                 {
1244                                 read_ssl=1;
1245                                 write_tty=0;
1246                                 }
1247                         }
1248                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1249                         {
1250 #ifdef RENEG
1251 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1252 #endif
1253 #if 1
1254                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1255 #else
1256 /* Demo for pending and peek :-) */
1257                         k=SSL_read(con,sbuf,16);
1258 { char zbuf[10240];
1259 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1260 }
1261 #endif
1262
1263                         switch (SSL_get_error(con,k))
1264                                 {
1265                         case SSL_ERROR_NONE:
1266                                 if (k <= 0)
1267                                         goto end;
1268                                 sbuf_off=0;
1269                                 sbuf_len=k;
1270
1271                                 read_ssl=0;
1272                                 write_tty=1;
1273                                 break;
1274                         case SSL_ERROR_WANT_WRITE:
1275                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1276                                 write_ssl=1;
1277                                 read_tty=0;
1278                                 break;
1279                         case SSL_ERROR_WANT_READ:
1280                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1281                                 write_tty=0;
1282                                 read_ssl=1;
1283                                 if ((read_tty == 0) && (write_ssl == 0))
1284                                         write_ssl=1;
1285                                 break;
1286                         case SSL_ERROR_WANT_X509_LOOKUP:
1287                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1288                                 break;
1289                         case SSL_ERROR_SYSCALL:
1290                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
1291                                 goto shut;
1292                         case SSL_ERROR_ZERO_RETURN:
1293                                 BIO_printf(bio_c_out,"closed\n");
1294                                 goto shut;
1295                         case SSL_ERROR_SSL:
1296                                 ERR_print_errors(bio_err);
1297                                 goto shut;
1298                                 /* break; */
1299                                 }
1300                         }
1301
1302 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1303 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1304                 else if (_kbhit())
1305 #else
1306                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1307 #endif
1308 #elif defined (OPENSSL_SYS_NETWARE)
1309         else if (_kbhit())
1310 #else
1311                 else if (FD_ISSET(fileno(stdin),&readfds))
1312 #endif
1313                         {
1314                         if (crlf)
1315                                 {
1316                                 int j, lf_num;
1317
1318                                 i=read(fileno(stdin),cbuf,BUFSIZZ/2);
1319                                 lf_num = 0;
1320                                 /* both loops are skipped when i <= 0 */
1321                                 for (j = 0; j < i; j++)
1322                                         if (cbuf[j] == '\n')
1323                                                 lf_num++;
1324                                 for (j = i-1; j >= 0; j--)
1325                                         {
1326                                         cbuf[j+lf_num] = cbuf[j];
1327                                         if (cbuf[j] == '\n')
1328                                                 {
1329                                                 lf_num--;
1330                                                 i++;
1331                                                 cbuf[j+lf_num] = '\r';
1332                                                 }
1333                                         }
1334                                 assert(lf_num == 0);
1335                                 }
1336                         else
1337                                 i=read(fileno(stdin),cbuf,BUFSIZZ);
1338
1339                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1340                                 {
1341                                 BIO_printf(bio_err,"DONE\n");
1342                                 goto shut;
1343                                 }
1344
1345                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1346                                 {
1347                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1348                                 SSL_renegotiate(con);
1349                                 cbuf_len=0;
1350                                 }
1351                         else
1352                                 {
1353                                 cbuf_len=i;
1354                                 cbuf_off=0;
1355 #ifdef CHARSET_EBCDIC
1356                                 ebcdic2ascii(cbuf, cbuf, i);
1357 #endif
1358                                 }
1359
1360                         write_ssl=1;
1361                         read_tty=0;
1362                         }
1363                 }
1364 shut:
1365         SSL_shutdown(con);
1366         SHUTDOWN(SSL_get_fd(con));
1367         ret=0;
1368 end:
1369         if(prexit) print_stuff(bio_c_out,con,1);
1370         if (con != NULL) SSL_free(con);
1371         if (con2 != NULL) SSL_free(con2);
1372         if (ctx != NULL) SSL_CTX_free(ctx);
1373         if (cert)
1374                 X509_free(cert);
1375         if (key)
1376                 EVP_PKEY_free(key);
1377         if (pass)
1378                 OPENSSL_free(pass);
1379         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1380         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1381         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1382         if (bio_c_out != NULL)
1383                 {
1384                 BIO_free(bio_c_out);
1385                 bio_c_out=NULL;
1386                 }
1387         apps_shutdown();
1388         OPENSSL_EXIT(ret);
1389         }
1390
1391
1392 static void print_stuff(BIO *bio, SSL *s, int full)
1393         {
1394         X509 *peer=NULL;
1395         char *p;
1396         static const char *space="                ";
1397         char buf[BUFSIZ];
1398         STACK_OF(X509) *sk;
1399         STACK_OF(X509_NAME) *sk2;
1400         SSL_CIPHER *c;
1401         X509_NAME *xn;
1402         int j,i;
1403 #ifndef OPENSSL_NO_COMP
1404         const COMP_METHOD *comp, *expansion;
1405 #endif
1406
1407         if (full)
1408                 {
1409                 int got_a_chain = 0;
1410
1411                 sk=SSL_get_peer_cert_chain(s);
1412                 if (sk != NULL)
1413                         {
1414                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1415
1416                         BIO_printf(bio,"---\nCertificate chain\n");
1417                         for (i=0; i<sk_X509_num(sk); i++)
1418                                 {
1419                                 X509_NAME_oneline(X509_get_subject_name(
1420                                         sk_X509_value(sk,i)),buf,sizeof buf);
1421                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1422                                 X509_NAME_oneline(X509_get_issuer_name(
1423                                         sk_X509_value(sk,i)),buf,sizeof buf);
1424                                 BIO_printf(bio,"   i:%s\n",buf);
1425                                 if (c_showcerts)
1426                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1427                                 }
1428                         }
1429
1430                 BIO_printf(bio,"---\n");
1431                 peer=SSL_get_peer_certificate(s);
1432                 if (peer != NULL)
1433                         {
1434                         BIO_printf(bio,"Server certificate\n");
1435                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1436                                 PEM_write_bio_X509(bio,peer);
1437                         X509_NAME_oneline(X509_get_subject_name(peer),
1438                                 buf,sizeof buf);
1439                         BIO_printf(bio,"subject=%s\n",buf);
1440                         X509_NAME_oneline(X509_get_issuer_name(peer),
1441                                 buf,sizeof buf);
1442                         BIO_printf(bio,"issuer=%s\n",buf);
1443                         }
1444                 else
1445                         BIO_printf(bio,"no peer certificate available\n");
1446
1447                 sk2=SSL_get_client_CA_list(s);
1448                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1449                         {
1450                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1451                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1452                                 {
1453                                 xn=sk_X509_NAME_value(sk2,i);
1454                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1455                                 BIO_write(bio,buf,strlen(buf));
1456                                 BIO_write(bio,"\n",1);
1457                                 }
1458                         }
1459                 else
1460                         {
1461                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1462                         }
1463                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1464                 if (p != NULL)
1465                         {
1466                         /* This works only for SSL 2.  In later protocol
1467                          * versions, the client does not know what other
1468                          * ciphers (in addition to the one to be used
1469                          * in the current connection) the server supports. */
1470
1471                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1472                         j=i=0;
1473                         while (*p)
1474                                 {
1475                                 if (*p == ':')
1476                                         {
1477                                         BIO_write(bio,space,15-j%25);
1478                                         i++;
1479                                         j=0;
1480                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1481                                         }
1482                                 else
1483                                         {
1484                                         BIO_write(bio,p,1);
1485                                         j++;
1486                                         }
1487                                 p++;
1488                                 }
1489                         BIO_write(bio,"\n",1);
1490                         }
1491
1492                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1493                         BIO_number_read(SSL_get_rbio(s)),
1494                         BIO_number_written(SSL_get_wbio(s)));
1495                 }
1496         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1497         c=SSL_get_current_cipher(s);
1498         BIO_printf(bio,"%s, Cipher is %s\n",
1499                 SSL_CIPHER_get_version(c),
1500                 SSL_CIPHER_get_name(c));
1501         if (peer != NULL) {
1502                 EVP_PKEY *pktmp;
1503                 pktmp = X509_get_pubkey(peer);
1504                 BIO_printf(bio,"Server public key is %d bit\n",
1505                                                          EVP_PKEY_bits(pktmp));
1506                 EVP_PKEY_free(pktmp);
1507         }
1508 #ifndef OPENSSL_NO_COMP
1509         comp=SSL_get_current_compression(s);
1510         expansion=SSL_get_current_expansion(s);
1511         BIO_printf(bio,"Compression: %s\n",
1512                 comp ? SSL_COMP_get_name(comp) : "NONE");
1513         BIO_printf(bio,"Expansion: %s\n",
1514                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1515 #endif
1516         SSL_SESSION_print(bio,SSL_get_session(s));
1517         BIO_printf(bio,"---\n");
1518         if (peer != NULL)
1519                 X509_free(peer);
1520         /* flush, or debugging output gets mixed with http response */
1521         (void)BIO_flush(bio);
1522         }
1523
1524 #ifndef OPENSSL_NO_TLSEXT
1525
1526 static int ocsp_resp_cb(SSL *s, void *arg)
1527         {
1528         const unsigned char *p;
1529         int len;
1530         OCSP_RESPONSE *rsp;
1531         len = SSL_get_tlsext_status_ocsp_resp(s, &p);
1532         BIO_puts(arg, "OCSP response: ");
1533         if (!p)
1534                 {
1535                 BIO_puts(arg, "no response sent\n");
1536                 return 1;
1537                 }
1538         rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
1539         if (!rsp)
1540                 {
1541                 BIO_puts(arg, "response parse error\n");
1542                 BIO_dump_indent(arg, (char *)p, len, 4);
1543                 return 0;
1544                 }
1545         BIO_puts(arg, "\n======================================\n");
1546         OCSP_RESPONSE_print(arg, rsp, 0);
1547         BIO_puts(arg, "======================================\n");
1548         OCSP_RESPONSE_free(rsp);
1549         return 1;
1550         }
1551 #endif  /* ndef OPENSSL_NO_TLSEXT */