crypto/openssl-0.9/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 "s_apps.h"
 138 #include "timeouts.h"
 139
 140 #ifdef OPENSSL_SYS_WINCE
 141 /* Windows CE incorrectly defines fileno as returning void*, so to avoid problems below... */
 142 #ifdef fileno
 143 #undef fileno
 144 #endif
 145 #define fileno(a) (int)_fileno(a)
 146 #endif
 147
 148
 149 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 150 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 151 #undef FIONBIO
 152 #endif
 153
 154 #undef PROG
 155 #define PROG    s_client_main
 156
 157 /*#define SSL_HOST_NAME "www.netscape.com" */
 158 /*#define SSL_HOST_NAME "193.118.187.102" */
 159 #define SSL_HOST_NAME   "localhost"
 160
 161 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 162
 163 #undef BUFSIZZ
 164 #define BUFSIZZ 1024*8
 165
 166 extern int verify_depth;
 167 extern int verify_error;
 168
 169 #ifdef FIONBIO
 170 static int c_nbio=0;
 171 #endif
 172 static int c_Pause=0;
 173 static int c_debug=0;
 174 #ifndef OPENSSL_NO_TLSEXT
 175 static int c_tlsextdebug=0;
 176 #endif
 177 static int c_msg=0;
 178 static int c_showcerts=0;
 179
 180 static void sc_usage(void);
 181 static void print_stuff(BIO *berr,SSL *con,int full);
 182 static BIO *bio_c_out=NULL;
 183 static int c_quiet=0;
 184 static int c_ign_eof=0;
 185
 186 static void sc_usage(void)
 187         {
 188         BIO_printf(bio_err,"usage: s_client args\n");
 189         BIO_printf(bio_err,"\n");
 190         BIO_printf(bio_err," -host host     - use -connect instead\n");
 191         BIO_printf(bio_err," -port port     - use -connect instead\n");
 192         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 193
 194         BIO_printf(bio_err," -verify depth - turn on peer certificate verification\n");
 195         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 196         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 197         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 198         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 199         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 200         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 201         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 202         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 203         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 204         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 205         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 206         BIO_printf(bio_err," -debug        - extra output\n");
 207 #ifdef WATT32
 208         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 209 #endif
 210         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 211         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 212         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 213 #ifdef FIONBIO
 214         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 215 #endif
 216         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 217         BIO_printf(bio_err," -quiet        - no s_client output\n");
 218         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 219         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 220         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 221         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 222         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 223         BIO_printf(bio_err," -mtu          - set the MTU\n");
 224         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 225         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 226         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 227         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 228         BIO_printf(bio_err,"                 command to see what is available\n");
 229         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 230         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 231         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 232         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", and \"ftp\" are supported.\n");
 233 #ifndef OPENSSL_NO_ENGINE
 234         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 235 #endif
 236         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 237         BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
 238         BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
 239 #ifndef OPENSSL_NO_TLSEXT
 240         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 241         BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
 242         BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
 243 #endif
 244         }
 245
 246 #ifndef OPENSSL_NO_TLSEXT
 247
 248 /* This is a context that we pass to callbacks */
 249 typedef struct tlsextctx_st {
 250    BIO * biodebug;
 251    int ack;
 252 } tlsextctx;
 253
 254
 255 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 256         {
 257         tlsextctx * p = (tlsextctx *) arg;
 258         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 259         if (SSL_get_servername_type(s) != -1)
 260                 p->ack = !SSL_session_reused(s) && hn != NULL;
 261         else
 262                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 263
 264         return SSL_TLSEXT_ERR_OK;
 265         }
 266 #endif
 267 enum
 268 {
 269         PROTO_OFF       = 0,
 270         PROTO_SMTP,
 271         PROTO_POP3,
 272         PROTO_IMAP,
 273         PROTO_FTP
 274 };
 275
 276 int MAIN(int, char **);
 277
 278 int MAIN(int argc, char **argv)
 279         {
 280         int off=0;
 281         SSL *con=NULL,*con2=NULL;
 282         X509_STORE *store = NULL;
 283         int s,k,width,state=0;
 284         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 285         int cbuf_len,cbuf_off;
 286         int sbuf_len,sbuf_off;
 287         fd_set readfds,writefds;
 288         short port=PORT;
 289         int full_log=1;
 290         char *host=SSL_HOST_NAME;
 291         char *cert_file=NULL,*key_file=NULL;
 292         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 293         char *passarg = NULL, *pass = NULL;
 294         X509 *cert = NULL;
 295         EVP_PKEY *key = NULL;
 296         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 297         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 298         int crlf=0;
 299         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 300         SSL_CTX *ctx=NULL;
 301         int ret=1,in_init=1,i,nbio_test=0;
 302         int starttls_proto = PROTO_OFF;
 303         int prexit = 0, vflags = 0;
 304         SSL_METHOD *meth=NULL;
 305 #ifdef sock_type
 306 #undef sock_type
 307 #endif
 308         int sock_type=SOCK_STREAM;
 309         BIO *sbio;
 310         char *inrand=NULL;
 311         int mbuf_len=0;
 312 #ifndef OPENSSL_NO_ENGINE
 313         char *engine_id=NULL;
 314         ENGINE *e=NULL;
 315 #endif
 316 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
 317         struct timeval tv;
 318 #endif
 319
 320 #ifndef OPENSSL_NO_TLSEXT
 321         char *servername = NULL;
 322         tlsextctx tlsextcbp =
 323         {NULL,0};
 324 #endif
 325         char *sess_in = NULL;
 326         char *sess_out = NULL;
 327         struct sockaddr peer;
 328         int peerlen = sizeof(peer);
 329         int enable_timeouts = 0 ;
 330         long mtu = 0;
 331
 332 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 333         meth=SSLv23_client_method();
 334 #elif !defined(OPENSSL_NO_SSL3)
 335         meth=SSLv3_client_method();
 336 #elif !defined(OPENSSL_NO_SSL2)
 337         meth=SSLv2_client_method();
 338 #endif
 339
 340         apps_startup();
 341         c_Pause=0;
 342         c_quiet=0;
 343         c_ign_eof=0;
 344         c_debug=0;
 345         c_msg=0;
 346         c_showcerts=0;
 347
 348         if (bio_err == NULL)
 349                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 350
 351         if (!load_config(bio_err, NULL))
 352                 goto end;
 353
 354         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 355                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 356                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 357                 {
 358                 BIO_printf(bio_err,"out of memory\n");
 359                 goto end;
 360                 }
 361
 362         verify_depth=0;
 363         verify_error=X509_V_OK;
 364 #ifdef FIONBIO
 365         c_nbio=0;
 366 #endif
 367
 368         argc--;
 369         argv++;
 370         while (argc >= 1)
 371                 {
 372                 if      (strcmp(*argv,"-host") == 0)
 373                         {
 374                         if (--argc < 1) goto bad;
 375                         host= *(++argv);
 376                         }
 377                 else if (strcmp(*argv,"-port") == 0)
 378                         {
 379                         if (--argc < 1) goto bad;
 380                         port=atoi(*(++argv));
 381                         if (port == 0) goto bad;
 382                         }
 383                 else if (strcmp(*argv,"-connect") == 0)
 384                         {
 385                         if (--argc < 1) goto bad;
 386                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 387                                 goto bad;
 388                         }
 389                 else if (strcmp(*argv,"-verify") == 0)
 390                         {
 391                         verify=SSL_VERIFY_PEER;
 392                         if (--argc < 1) goto bad;
 393                         verify_depth=atoi(*(++argv));
 394                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 395                         }
 396                 else if (strcmp(*argv,"-cert") == 0)
 397                         {
 398                         if (--argc < 1) goto bad;
 399                         cert_file= *(++argv);
 400                         }
 401                 else if (strcmp(*argv,"-sess_out") == 0)
 402                         {
 403                         if (--argc < 1) goto bad;
 404                         sess_out = *(++argv);
 405                         }
 406                 else if (strcmp(*argv,"-sess_in") == 0)
 407                         {
 408                         if (--argc < 1) goto bad;
 409                         sess_in = *(++argv);
 410                         }
 411                 else if (strcmp(*argv,"-certform") == 0)
 412                         {
 413                         if (--argc < 1) goto bad;
 414                         cert_format = str2fmt(*(++argv));
 415                         }
 416                 else if (strcmp(*argv,"-crl_check") == 0)
 417                         vflags |= X509_V_FLAG_CRL_CHECK;
 418                 else if (strcmp(*argv,"-crl_check_all") == 0)
 419                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 420                 else if (strcmp(*argv,"-prexit") == 0)
 421                         prexit=1;
 422                 else if (strcmp(*argv,"-crlf") == 0)
 423                         crlf=1;
 424                 else if (strcmp(*argv,"-quiet") == 0)
 425                         {
 426                         c_quiet=1;
 427                         c_ign_eof=1;
 428                         }
 429                 else if (strcmp(*argv,"-ign_eof") == 0)
 430                         c_ign_eof=1;
 431                 else if (strcmp(*argv,"-pause") == 0)
 432                         c_Pause=1;
 433                 else if (strcmp(*argv,"-debug") == 0)
 434                         c_debug=1;
 435 #ifndef OPENSSL_NO_TLSEXT
 436                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 437                         c_tlsextdebug=1;
 438 #endif
 439 #ifdef WATT32
 440                 else if (strcmp(*argv,"-wdebug") == 0)
 441                         dbug_init();
 442 #endif
 443                 else if (strcmp(*argv,"-msg") == 0)
 444                         c_msg=1;
 445                 else if (strcmp(*argv,"-showcerts") == 0)
 446                         c_showcerts=1;
 447                 else if (strcmp(*argv,"-nbio_test") == 0)
 448                         nbio_test=1;
 449                 else if (strcmp(*argv,"-state") == 0)
 450                         state=1;
 451 #ifndef OPENSSL_NO_SSL2
 452                 else if (strcmp(*argv,"-ssl2") == 0)
 453                         meth=SSLv2_client_method();
 454 #endif
 455 #ifndef OPENSSL_NO_SSL3
 456                 else if (strcmp(*argv,"-ssl3") == 0)
 457                         meth=SSLv3_client_method();
 458 #endif
 459 #ifndef OPENSSL_NO_TLS1
 460                 else if (strcmp(*argv,"-tls1") == 0)
 461                         meth=TLSv1_client_method();
 462 #endif
 463 #ifndef OPENSSL_NO_DTLS1
 464                 else if (strcmp(*argv,"-dtls1") == 0)
 465                         {
 466                         meth=DTLSv1_client_method();
 467                         sock_type=SOCK_DGRAM;
 468                         }
 469                 else if (strcmp(*argv,"-timeout") == 0)
 470                         enable_timeouts=1;
 471                 else if (strcmp(*argv,"-mtu") == 0)
 472                         {
 473                         if (--argc < 1) goto bad;
 474                         mtu = atol(*(++argv));
 475                         }
 476 #endif
 477                 else if (strcmp(*argv,"-bugs") == 0)
 478                         bugs=1;
 479                 else if (strcmp(*argv,"-keyform") == 0)
 480                         {
 481                         if (--argc < 1) goto bad;
 482                         key_format = str2fmt(*(++argv));
 483                         }
 484                 else if (strcmp(*argv,"-pass") == 0)
 485                         {
 486                         if (--argc < 1) goto bad;
 487                         passarg = *(++argv);
 488                         }
 489                 else if (strcmp(*argv,"-key") == 0)
 490                         {
 491                         if (--argc < 1) goto bad;
 492                         key_file= *(++argv);
 493                         }
 494                 else if (strcmp(*argv,"-reconnect") == 0)
 495                         {
 496                         reconnect=5;
 497                         }
 498                 else if (strcmp(*argv,"-CApath") == 0)
 499                         {
 500                         if (--argc < 1) goto bad;
 501                         CApath= *(++argv);
 502                         }
 503                 else if (strcmp(*argv,"-CAfile") == 0)
 504                         {
 505                         if (--argc < 1) goto bad;
 506                         CAfile= *(++argv);
 507                         }
 508                 else if (strcmp(*argv,"-no_tls1") == 0)
 509                         off|=SSL_OP_NO_TLSv1;
 510                 else if (strcmp(*argv,"-no_ssl3") == 0)
 511                         off|=SSL_OP_NO_SSLv3;
 512                 else if (strcmp(*argv,"-no_ssl2") == 0)
 513                         off|=SSL_OP_NO_SSLv2;
 514 #ifndef OPENSSL_NO_TLSEXT
 515                 else if (strcmp(*argv,"-no_ticket") == 0)
 516                         { off|=SSL_OP_NO_TICKET; }
 517 #endif
 518                 else if (strcmp(*argv,"-serverpref") == 0)
 519                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 520                 else if (strcmp(*argv,"-cipher") == 0)
 521                         {
 522                         if (--argc < 1) goto bad;
 523                         cipher= *(++argv);
 524                         }
 525 #ifdef FIONBIO
 526                 else if (strcmp(*argv,"-nbio") == 0)
 527                         { c_nbio=1; }
 528 #endif
 529                 else if (strcmp(*argv,"-starttls") == 0)
 530                         {
 531                         if (--argc < 1) goto bad;
 532                         ++argv;
 533                         if (strcmp(*argv,"smtp") == 0)
 534                                 starttls_proto = PROTO_SMTP;
 535                         else if (strcmp(*argv,"pop3") == 0)
 536                                 starttls_proto = PROTO_POP3;
 537                         else if (strcmp(*argv,"imap") == 0)
 538                                 starttls_proto = PROTO_IMAP;
 539                         else if (strcmp(*argv,"ftp") == 0)
 540                                 starttls_proto = PROTO_FTP;
 541                         else
 542                                 goto bad;
 543                         }
 544 #ifndef OPENSSL_NO_ENGINE
 545                 else if (strcmp(*argv,"-engine") == 0)
 546                         {
 547                         if (--argc < 1) goto bad;
 548                         engine_id = *(++argv);
 549                         }
 550 #endif
 551                 else if (strcmp(*argv,"-rand") == 0)
 552                         {
 553                         if (--argc < 1) goto bad;
 554                         inrand= *(++argv);
 555                         }
 556 #ifndef OPENSSL_NO_TLSEXT
 557                 else if (strcmp(*argv,"-servername") == 0)
 558                         {
 559                         if (--argc < 1) goto bad;
 560                         servername= *(++argv);
 561                         /* meth=TLSv1_client_method(); */
 562                         }
 563 #endif
 564                 else
 565                         {
 566                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 567                         badop=1;
 568                         break;
 569                         }
 570                 argc--;
 571                 argv++;
 572                 }
 573         if (badop)
 574                 {
 575 bad:
 576                 sc_usage();
 577                 goto end;
 578                 }
 579
 580         OpenSSL_add_ssl_algorithms();
 581         SSL_load_error_strings();
 582
 583 #ifndef OPENSSL_NO_ENGINE
 584         e = setup_engine(bio_err, engine_id, 1);
 585 #endif
 586         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
 587                 {
 588                 BIO_printf(bio_err, "Error getting password\n");
 589                 goto end;
 590                 }
 591
 592         if (key_file == NULL)
 593                 key_file = cert_file;
 594
 595
 596         if (key_file)
 597
 598                 {
 599
 600                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
 601                                "client certificate private key file");
 602                 if (!key)
 603                         {
 604                         ERR_print_errors(bio_err);
 605                         goto end;
 606                         }
 607
 608                 }
 609
 610         if (cert_file)
 611
 612                 {
 613                 cert = load_cert(bio_err,cert_file,cert_format,
 614                                 NULL, e, "client certificate file");
 615
 616                 if (!cert)
 617                         {
 618                         ERR_print_errors(bio_err);
 619                         goto end;
 620                         }
 621                 }
 622
 623         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 624                 && !RAND_status())
 625                 {
 626                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 627                 }
 628         if (inrand != NULL)
 629                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 630                         app_RAND_load_files(inrand));
 631
 632         if (bio_c_out == NULL)
 633                 {
 634                 if (c_quiet && !c_debug && !c_msg)
 635                         {
 636                         bio_c_out=BIO_new(BIO_s_null());
 637                         }
 638                 else
 639                         {
 640                         if (bio_c_out == NULL)
 641                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 642                         }
 643                 }
 644
 645         ctx=SSL_CTX_new(meth);
 646         if (ctx == NULL)
 647                 {
 648                 ERR_print_errors(bio_err);
 649                 goto end;
 650                 }
 651
 652         if (bugs)
 653                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 654         else
 655                 SSL_CTX_set_options(ctx,off);
 656         /* DTLS: partial reads end up discarding unread UDP bytes :-(
 657          * Setting read ahead solves this problem.
 658          */
 659         if (sock_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
 660
 661         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 662         if (cipher != NULL)
 663                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 664                 BIO_printf(bio_err,"error setting cipher list\n");
 665                 ERR_print_errors(bio_err);
 666                 goto end;
 667         }
 668 #if 0
 669         else
 670                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 671 #endif
 672
 673         SSL_CTX_set_verify(ctx,verify,verify_callback);
 674         if (!set_cert_key_stuff(ctx,cert,key))
 675                 goto end;
 676
 677         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 678                 (!SSL_CTX_set_default_verify_paths(ctx)))
 679                 {
 680                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 681                 ERR_print_errors(bio_err);
 682                 /* goto end; */
 683                 }
 684
 685         store = SSL_CTX_get_cert_store(ctx);
 686         X509_STORE_set_flags(store, vflags);
 687 #ifndef OPENSSL_NO_TLSEXT
 688         if (servername != NULL)
 689                 {
 690                 tlsextcbp.biodebug = bio_err;
 691                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
 692                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
 693                 }
 694 #endif
 695
 696         con=SSL_new(ctx);
 697         if (sess_in)
 698                 {
 699                 SSL_SESSION *sess;
 700                 BIO *stmp = BIO_new_file(sess_in, "r");
 701                 if (!stmp)
 702                         {
 703                         BIO_printf(bio_err, "Can't open session file %s\n",
 704                                                 sess_in);
 705                         ERR_print_errors(bio_err);
 706                         goto end;
 707                         }
 708                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
 709                 BIO_free(stmp);
 710                 if (!sess)
 711                         {
 712                         BIO_printf(bio_err, "Can't open session file %s\n",
 713                                                 sess_in);
 714                         ERR_print_errors(bio_err);
 715                         goto end;
 716                         }
 717                 SSL_set_session(con, sess);
 718                 SSL_SESSION_free(sess);
 719                 }
 720 #ifndef OPENSSL_NO_TLSEXT
 721         if (servername != NULL)
 722                 {
 723                 if (!SSL_set_tlsext_host_name(con,servername))
 724                         {
 725                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
 726                         ERR_print_errors(bio_err);
 727                         goto end;
 728                         }
 729                 }
 730 #endif
 731
 732 #ifndef OPENSSL_NO_KRB5
 733         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 734                 {
 735                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 736                 }
 737 #endif  /* OPENSSL_NO_KRB5  */
 738 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 739
 740 re_start:
 741
 742         if (init_client(&s,host,port,sock_type) == 0)
 743                 {
 744                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 745                 SHUTDOWN(s);
 746                 goto end;
 747                 }
 748         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 749
 750 #ifdef FIONBIO
 751         if (c_nbio)
 752                 {
 753                 unsigned long l=1;
 754                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 755                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 756                         {
 757                         ERR_print_errors(bio_err);
 758                         goto end;
 759                         }
 760                 }
 761 #endif
 762         if (c_Pause & 0x01) con->debug=1;
 763
 764         if ( SSL_version(con) == DTLS1_VERSION)
 765                 {
 766                 struct timeval timeout;
 767
 768                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
 769                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
 770                         {
 771                         BIO_printf(bio_err, "getsockname:errno=%d\n",
 772                                 get_last_socket_error());
 773                         SHUTDOWN(s);
 774                         goto end;
 775                         }
 776
 777                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
 778
 779                 if ( enable_timeouts)
 780                         {
 781                         timeout.tv_sec = 0;
 782                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
 783                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
 784
 785                         timeout.tv_sec = 0;
 786                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
 787                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
 788                         }
 789
 790                 if ( mtu > 0)
 791                         {
 792                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
 793                         SSL_set_mtu(con, mtu);
 794                         }
 795                 else
 796                         /* want to do MTU discovery */
 797                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
 798                 }
 799         else
 800                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
 801
 802
 803
 804         if (nbio_test)
 805                 {
 806                 BIO *test;
 807
 808                 test=BIO_new(BIO_f_nbio_test());
 809                 sbio=BIO_push(test,sbio);
 810                 }
 811
 812         if (c_debug)
 813                 {
 814                 con->debug=1;
 815                 BIO_set_callback(sbio,bio_dump_callback);
 816                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
 817                 }
 818         if (c_msg)
 819                 {
 820                 SSL_set_msg_callback(con, msg_cb);
 821                 SSL_set_msg_callback_arg(con, bio_c_out);
 822                 }
 823 #ifndef OPENSSL_NO_TLSEXT
 824         if (c_tlsextdebug)
 825                 {
 826                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
 827                 SSL_set_tlsext_debug_arg(con, bio_c_out);
 828                 }
 829 #endif
 830
 831         SSL_set_bio(con,sbio,sbio);
 832         SSL_set_connect_state(con);
 833
 834         /* ok, lets connect */
 835         width=SSL_get_fd(con)+1;
 836
 837         read_tty=1;
 838         write_tty=0;
 839         tty_on=0;
 840         read_ssl=1;
 841         write_ssl=1;
 842
 843         cbuf_len=0;
 844         cbuf_off=0;
 845         sbuf_len=0;
 846         sbuf_off=0;
 847
 848         /* This is an ugly hack that does a lot of assumptions */
 849         /* We do have to handle multi-line responses which may come
 850            in a single packet or not. We therefore have to use
 851            BIO_gets() which does need a buffering BIO. So during
 852            the initial chitchat we do push a buffering BIO into the
 853            chain that is removed again later on to not disturb the
 854            rest of the s_client operation. */
 855         if (starttls_proto == PROTO_SMTP)
 856                 {
 857                 int foundit=0;
 858                 BIO *fbio = BIO_new(BIO_f_buffer());
 859                 BIO_push(fbio, sbio);
 860                 /* wait for multi-line response to end from SMTP */
 861                 do
 862                         {
 863                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 864                         }
 865                 while (mbuf_len>3 && mbuf[3]=='-');
 866                 /* STARTTLS command requires EHLO... */
 867                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
 868                 (void)BIO_flush(fbio);
 869                 /* wait for multi-line response to end EHLO SMTP response */
 870                 do
 871                         {
 872                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 873                         if (strstr(mbuf,"STARTTLS"))
 874                                 foundit=1;
 875                         }
 876                 while (mbuf_len>3 && mbuf[3]=='-');
 877                 (void)BIO_flush(fbio);
 878                 BIO_pop(fbio);
 879                 BIO_free(fbio);
 880                 if (!foundit)
 881                         BIO_printf(bio_err,
 882                                    "didn't found starttls in server response,"
 883                                    " try anyway...\n");
 884                 BIO_printf(sbio,"STARTTLS\r\n");
 885                 BIO_read(sbio,sbuf,BUFSIZZ);
 886                 }
 887         else if (starttls_proto == PROTO_POP3)
 888                 {
 889                 BIO_read(sbio,mbuf,BUFSIZZ);
 890                 BIO_printf(sbio,"STLS\r\n");
 891                 BIO_read(sbio,sbuf,BUFSIZZ);
 892                 }
 893         else if (starttls_proto == PROTO_IMAP)
 894                 {
 895                 int foundit=0;
 896                 BIO *fbio = BIO_new(BIO_f_buffer());
 897                 BIO_push(fbio, sbio);
 898                 BIO_gets(fbio,mbuf,BUFSIZZ);
 899                 /* STARTTLS command requires CAPABILITY... */
 900                 BIO_printf(fbio,". CAPABILITY\r\n");
 901                 (void)BIO_flush(fbio);
 902                 /* wait for multi-line CAPABILITY response */
 903                 do
 904                         {
 905                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 906                         if (strstr(mbuf,"STARTTLS"))
 907                                 foundit=1;
 908                         }
 909                 while (mbuf_len>3 && mbuf[0]!='.');
 910                 (void)BIO_flush(fbio);
 911                 BIO_pop(fbio);
 912                 BIO_free(fbio);
 913                 if (!foundit)
 914                         BIO_printf(bio_err,
 915                                    "didn't found STARTTLS in server response,"
 916                                    " try anyway...\n");
 917                 BIO_printf(sbio,". STARTTLS\r\n");
 918                 BIO_read(sbio,sbuf,BUFSIZZ);
 919                 }
 920         else if (starttls_proto == PROTO_FTP)
 921                 {
 922                 BIO *fbio = BIO_new(BIO_f_buffer());
 923                 BIO_push(fbio, sbio);
 924                 /* wait for multi-line response to end from FTP */
 925                 do
 926                         {
 927                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 928                         }
 929                 while (mbuf_len>3 && mbuf[3]=='-');
 930                 (void)BIO_flush(fbio);
 931                 BIO_pop(fbio);
 932                 BIO_free(fbio);
 933                 BIO_printf(sbio,"AUTH TLS\r\n");
 934                 BIO_read(sbio,sbuf,BUFSIZZ);
 935                 }
 936
 937         for (;;)
 938                 {
 939                 FD_ZERO(&readfds);
 940                 FD_ZERO(&writefds);
 941
 942                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
 943                         {
 944                         in_init=1;
 945                         tty_on=0;
 946                         }
 947                 else
 948                         {
 949                         tty_on=1;
 950                         if (in_init)
 951                                 {
 952                                 in_init=0;
 953                                 if (sess_out)
 954                                         {
 955                                         BIO *stmp = BIO_new_file(sess_out, "w");
 956                                         if (stmp)
 957                                                 {
 958                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
 959                                                 BIO_free(stmp);
 960                                                 }
 961                                         else
 962                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
 963                                         }
 964                                 print_stuff(bio_c_out,con,full_log);
 965                                 if (full_log > 0) full_log--;
 966
 967                                 if (starttls_proto)
 968                                         {
 969                                         BIO_printf(bio_err,"%s",mbuf);
 970                                         /* We don't need to know any more */
 971                                         starttls_proto = PROTO_OFF;
 972                                         }
 973
 974                                 if (reconnect)
 975                                         {
 976                                         reconnect--;
 977                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
 978                                         SSL_shutdown(con);
 979                                         SSL_set_connect_state(con);
 980                                         SHUTDOWN(SSL_get_fd(con));
 981                                         goto re_start;
 982                                         }
 983                                 }
 984                         }
 985
 986                 ssl_pending = read_ssl && SSL_pending(con);
 987
 988                 if (!ssl_pending)
 989                         {
 990 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)
 991                         if (tty_on)
 992                                 {
 993                                 if (read_tty)  FD_SET(fileno(stdin),&readfds);
 994                                 if (write_tty) FD_SET(fileno(stdout),&writefds);
 995                                 }
 996                         if (read_ssl)
 997                                 FD_SET(SSL_get_fd(con),&readfds);
 998                         if (write_ssl)
 999                                 FD_SET(SSL_get_fd(con),&writefds);
1000 #else
1001                         if(!tty_on || !write_tty) {
1002                                 if (read_ssl)
1003                                         FD_SET(SSL_get_fd(con),&readfds);
1004                                 if (write_ssl)
1005                                         FD_SET(SSL_get_fd(con),&writefds);
1006                         }
1007 #endif
1008 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1009                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1010
1011                         /* Note: under VMS with SOCKETSHR the second parameter
1012                          * is currently of type (int *) whereas under other
1013                          * systems it is (void *) if you don't have a cast it
1014                          * will choke the compiler: if you do have a cast then
1015                          * you can either go for (int *) or (void *).
1016                          */
1017 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1018                         /* Under Windows/DOS we make the assumption that we can
1019                          * always write to the tty: therefore if we need to
1020                          * write to the tty we just fall through. Otherwise
1021                          * we timeout the select every second and see if there
1022                          * are any keypresses. Note: this is a hack, in a proper
1023                          * Windows application we wouldn't do this.
1024                          */
1025                         i=0;
1026                         if(!write_tty) {
1027                                 if(read_tty) {
1028                                         tv.tv_sec = 1;
1029                                         tv.tv_usec = 0;
1030                                         i=select(width,(void *)&readfds,(void *)&writefds,
1031                                                  NULL,&tv);
1032 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1033                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1034 #else
1035                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1036 #endif
1037                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1038                                          NULL,NULL);
1039                         }
1040 #elif defined(OPENSSL_SYS_NETWARE)
1041                         if(!write_tty) {
1042                                 if(read_tty) {
1043                                         tv.tv_sec = 1;
1044                                         tv.tv_usec = 0;
1045                                         i=select(width,(void *)&readfds,(void *)&writefds,
1046                                                 NULL,&tv);
1047                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1048                                         NULL,NULL);
1049                         }
1050 #else
1051                         i=select(width,(void *)&readfds,(void *)&writefds,
1052                                  NULL,NULL);
1053 #endif
1054                         if ( i < 0)
1055                                 {
1056                                 BIO_printf(bio_err,"bad select %d\n",
1057                                 get_last_socket_error());
1058                                 goto shut;
1059                                 /* goto end; */
1060                                 }
1061                         }
1062
1063                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1064                         {
1065                         k=SSL_write(con,&(cbuf[cbuf_off]),
1066                                 (unsigned int)cbuf_len);
1067                         switch (SSL_get_error(con,k))
1068                                 {
1069                         case SSL_ERROR_NONE:
1070                                 cbuf_off+=k;
1071                                 cbuf_len-=k;
1072                                 if (k <= 0) goto end;
1073                                 /* we have done a  write(con,NULL,0); */
1074                                 if (cbuf_len <= 0)
1075                                         {
1076                                         read_tty=1;
1077                                         write_ssl=0;
1078                                         }
1079                                 else /* if (cbuf_len > 0) */
1080                                         {
1081                                         read_tty=0;
1082                                         write_ssl=1;
1083                                         }
1084                                 break;
1085                         case SSL_ERROR_WANT_WRITE:
1086                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1087                                 write_ssl=1;
1088                                 read_tty=0;
1089                                 break;
1090                         case SSL_ERROR_WANT_READ:
1091                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1092                                 write_tty=0;
1093                                 read_ssl=1;
1094                                 write_ssl=0;
1095                                 break;
1096                         case SSL_ERROR_WANT_X509_LOOKUP:
1097                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1098                                 break;
1099                         case SSL_ERROR_ZERO_RETURN:
1100                                 if (cbuf_len != 0)
1101                                         {
1102                                         BIO_printf(bio_c_out,"shutdown\n");
1103                                         goto shut;
1104                                         }
1105                                 else
1106                                         {
1107                                         read_tty=1;
1108                                         write_ssl=0;
1109                                         break;
1110                                         }
1111
1112                         case SSL_ERROR_SYSCALL:
1113                                 if ((k != 0) || (cbuf_len != 0))
1114                                         {
1115                                         BIO_printf(bio_err,"write:errno=%d\n",
1116                                                 get_last_socket_error());
1117                                         goto shut;
1118                                         }
1119                                 else
1120                                         {
1121                                         read_tty=1;
1122                                         write_ssl=0;
1123                                         }
1124                                 break;
1125                         case SSL_ERROR_SSL:
1126                                 ERR_print_errors(bio_err);
1127                                 goto shut;
1128                                 }
1129                         }
1130 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
1131                 /* Assume Windows/DOS can always write */
1132                 else if (!ssl_pending && write_tty)
1133 #else
1134                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1135 #endif
1136                         {
1137 #ifdef CHARSET_EBCDIC
1138                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1139 #endif
1140                         i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
1141
1142                         if (i <= 0)
1143                                 {
1144                                 BIO_printf(bio_c_out,"DONE\n");
1145                                 goto shut;
1146                                 /* goto end; */
1147                                 }
1148
1149                         sbuf_len-=i;;
1150                         sbuf_off+=i;
1151                         if (sbuf_len <= 0)
1152                                 {
1153                                 read_ssl=1;
1154                                 write_tty=0;
1155                                 }
1156                         }
1157                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1158                         {
1159 #ifdef RENEG
1160 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1161 #endif
1162 #if 1
1163                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1164 #else
1165 /* Demo for pending and peek :-) */
1166                         k=SSL_read(con,sbuf,16);
1167 { char zbuf[10240];
1168 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1169 }
1170 #endif
1171
1172                         switch (SSL_get_error(con,k))
1173                                 {
1174                         case SSL_ERROR_NONE:
1175                                 if (k <= 0)
1176                                         goto end;
1177                                 sbuf_off=0;
1178                                 sbuf_len=k;
1179
1180                                 read_ssl=0;
1181                                 write_tty=1;
1182                                 break;
1183                         case SSL_ERROR_WANT_WRITE:
1184                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1185                                 write_ssl=1;
1186                                 read_tty=0;
1187                                 break;
1188                         case SSL_ERROR_WANT_READ:
1189                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1190                                 write_tty=0;
1191                                 read_ssl=1;
1192                                 if ((read_tty == 0) && (write_ssl == 0))
1193                                         write_ssl=1;
1194                                 break;
1195                         case SSL_ERROR_WANT_X509_LOOKUP:
1196                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1197                                 break;
1198                         case SSL_ERROR_SYSCALL:
1199                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
1200                                 goto shut;
1201                         case SSL_ERROR_ZERO_RETURN:
1202                                 BIO_printf(bio_c_out,"closed\n");
1203                                 goto shut;
1204                         case SSL_ERROR_SSL:
1205                                 ERR_print_errors(bio_err);
1206                                 goto shut;
1207                                 /* break; */
1208                                 }
1209                         }
1210
1211 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1212 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1213                 else if (_kbhit())
1214 #else
1215                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1216 #endif
1217 #elif defined (OPENSSL_SYS_NETWARE)
1218         else if (_kbhit())
1219 #else
1220                 else if (FD_ISSET(fileno(stdin),&readfds))
1221 #endif
1222                         {
1223                         if (crlf)
1224                                 {
1225                                 int j, lf_num;
1226
1227                                 i=read(fileno(stdin),cbuf,BUFSIZZ/2);
1228                                 lf_num = 0;
1229                                 /* both loops are skipped when i <= 0 */
1230                                 for (j = 0; j < i; j++)
1231                                         if (cbuf[j] == '\n')
1232                                                 lf_num++;
1233                                 for (j = i-1; j >= 0; j--)
1234                                         {
1235                                         cbuf[j+lf_num] = cbuf[j];
1236                                         if (cbuf[j] == '\n')
1237                                                 {
1238                                                 lf_num--;
1239                                                 i++;
1240                                                 cbuf[j+lf_num] = '\r';
1241                                                 }
1242                                         }
1243                                 assert(lf_num == 0);
1244                                 }
1245                         else
1246                                 i=read(fileno(stdin),cbuf,BUFSIZZ);
1247
1248                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1249                                 {
1250                                 BIO_printf(bio_err,"DONE\n");
1251                                 goto shut;
1252                                 }
1253
1254                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1255                                 {
1256                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1257                                 SSL_renegotiate(con);
1258                                 cbuf_len=0;
1259                                 }
1260                         else
1261                                 {
1262                                 cbuf_len=i;
1263                                 cbuf_off=0;
1264 #ifdef CHARSET_EBCDIC
1265                                 ebcdic2ascii(cbuf, cbuf, i);
1266 #endif
1267                                 }
1268
1269                         write_ssl=1;
1270                         read_tty=0;
1271                         }
1272                 }
1273 shut:
1274         SSL_shutdown(con);
1275         SHUTDOWN(SSL_get_fd(con));
1276         ret=0;
1277 end:
1278         if(prexit) print_stuff(bio_c_out,con,1);
1279         if (con != NULL) SSL_free(con);
1280         if (con2 != NULL) SSL_free(con2);
1281         if (ctx != NULL) SSL_CTX_free(ctx);
1282         if (cert)
1283                 X509_free(cert);
1284         if (key)
1285                 EVP_PKEY_free(key);
1286         if (pass)
1287                 OPENSSL_free(pass);
1288         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1289         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1290         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1291         if (bio_c_out != NULL)
1292                 {
1293                 BIO_free(bio_c_out);
1294                 bio_c_out=NULL;
1295                 }
1296         apps_shutdown();
1297         OPENSSL_EXIT(ret);
1298         }
1299
1300
1301 static void print_stuff(BIO *bio, SSL *s, int full)
1302         {
1303         X509 *peer=NULL;
1304         char *p;
1305         static const char *space="                ";
1306         char buf[BUFSIZ];
1307         STACK_OF(X509) *sk;
1308         STACK_OF(X509_NAME) *sk2;
1309         SSL_CIPHER *c;
1310         X509_NAME *xn;
1311         int j,i;
1312 #ifndef OPENSSL_NO_COMP
1313         const COMP_METHOD *comp, *expansion;
1314 #endif
1315
1316         if (full)
1317                 {
1318                 int got_a_chain = 0;
1319
1320                 sk=SSL_get_peer_cert_chain(s);
1321                 if (sk != NULL)
1322                         {
1323                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1324
1325                         BIO_printf(bio,"---\nCertificate chain\n");
1326                         for (i=0; i<sk_X509_num(sk); i++)
1327                                 {
1328                                 X509_NAME_oneline(X509_get_subject_name(
1329                                         sk_X509_value(sk,i)),buf,sizeof buf);
1330                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1331                                 X509_NAME_oneline(X509_get_issuer_name(
1332                                         sk_X509_value(sk,i)),buf,sizeof buf);
1333                                 BIO_printf(bio,"   i:%s\n",buf);
1334                                 if (c_showcerts)
1335                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1336                                 }
1337                         }
1338
1339                 BIO_printf(bio,"---\n");
1340                 peer=SSL_get_peer_certificate(s);
1341                 if (peer != NULL)
1342                         {
1343                         BIO_printf(bio,"Server certificate\n");
1344                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1345                                 PEM_write_bio_X509(bio,peer);
1346                         X509_NAME_oneline(X509_get_subject_name(peer),
1347                                 buf,sizeof buf);
1348                         BIO_printf(bio,"subject=%s\n",buf);
1349                         X509_NAME_oneline(X509_get_issuer_name(peer),
1350                                 buf,sizeof buf);
1351                         BIO_printf(bio,"issuer=%s\n",buf);
1352                         }
1353                 else
1354                         BIO_printf(bio,"no peer certificate available\n");
1355
1356                 sk2=SSL_get_client_CA_list(s);
1357                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1358                         {
1359                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1360                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1361                                 {
1362                                 xn=sk_X509_NAME_value(sk2,i);
1363                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1364                                 BIO_write(bio,buf,strlen(buf));
1365                                 BIO_write(bio,"\n",1);
1366                                 }
1367                         }
1368                 else
1369                         {
1370                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1371                         }
1372                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1373                 if (p != NULL)
1374                         {
1375                         /* This works only for SSL 2.  In later protocol
1376                          * versions, the client does not know what other
1377                          * ciphers (in addition to the one to be used
1378                          * in the current connection) the server supports. */
1379
1380                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1381                         j=i=0;
1382                         while (*p)
1383                                 {
1384                                 if (*p == ':')
1385                                         {
1386                                         BIO_write(bio,space,15-j%25);
1387                                         i++;
1388                                         j=0;
1389                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1390                                         }
1391                                 else
1392                                         {
1393                                         BIO_write(bio,p,1);
1394                                         j++;
1395                                         }
1396                                 p++;
1397                                 }
1398                         BIO_write(bio,"\n",1);
1399                         }
1400
1401                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1402                         BIO_number_read(SSL_get_rbio(s)),
1403                         BIO_number_written(SSL_get_wbio(s)));
1404                 }
1405         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1406         c=SSL_get_current_cipher(s);
1407         BIO_printf(bio,"%s, Cipher is %s\n",
1408                 SSL_CIPHER_get_version(c),
1409                 SSL_CIPHER_get_name(c));
1410         if (peer != NULL) {
1411                 EVP_PKEY *pktmp;
1412                 pktmp = X509_get_pubkey(peer);
1413                 BIO_printf(bio,"Server public key is %d bit\n",
1414                                                          EVP_PKEY_bits(pktmp));
1415                 EVP_PKEY_free(pktmp);
1416         }
1417 #ifndef OPENSSL_NO_COMP
1418         comp=SSL_get_current_compression(s);
1419         expansion=SSL_get_current_expansion(s);
1420         BIO_printf(bio,"Compression: %s\n",
1421                 comp ? SSL_COMP_get_name(comp) : "NONE");
1422         BIO_printf(bio,"Expansion: %s\n",
1423                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1424 #endif
1425         SSL_SESSION_print(bio,SSL_get_session(s));
1426         BIO_printf(bio,"---\n");
1427         if (peer != NULL)
1428                 X509_free(peer);
1429         /* flush, or debugging output gets mixed with http response */
1430         (void)BIO_flush(bio);
1431         }
1432