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
 139 #ifdef OPENSSL_SYS_WINCE
 140 /* Windows CE incorrectly defines fileno as returning void*, so to avoid problems below... */
 141 #ifdef fileno
 142 #undef fileno
 143 #endif
 144 #define fileno(a) (int)_fileno(a)
 145 #endif
 146
 147
 148 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 149 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 150 #undef FIONBIO
 151 #endif
 152
 153 #undef PROG
 154 #define PROG    s_client_main
 155
 156 /*#define SSL_HOST_NAME "www.netscape.com" */
 157 /*#define SSL_HOST_NAME "193.118.187.102" */
 158 #define SSL_HOST_NAME   "localhost"
 159
 160 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 161
 162 #undef BUFSIZZ
 163 #define BUFSIZZ 1024*8
 164
 165 extern int verify_depth;
 166 extern int verify_error;
 167
 168 #ifdef FIONBIO
 169 static int c_nbio=0;
 170 #endif
 171 static int c_Pause=0;
 172 static int c_debug=0;
 173 static int c_msg=0;
 174 static int c_showcerts=0;
 175
 176 static void sc_usage(void);
 177 static void print_stuff(BIO *berr,SSL *con,int full);
 178 static BIO *bio_c_out=NULL;
 179 static int c_quiet=0;
 180 static int c_ign_eof=0;
 181
 182 static void sc_usage(void)
 183         {
 184         BIO_printf(bio_err,"usage: s_client args\n");
 185         BIO_printf(bio_err,"\n");
 186         BIO_printf(bio_err," -host host     - use -connect instead\n");
 187         BIO_printf(bio_err," -port port     - use -connect instead\n");
 188         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 189
 190         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 191         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 192         BIO_printf(bio_err," -key arg      - Private key file to use, PEM format assumed, in cert file if\n");
 193         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 194         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 195         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 196         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 197         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 198         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 199         BIO_printf(bio_err," -debug        - extra output\n");
 200         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 201         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 202         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 203 #ifdef FIONBIO
 204         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 205 #endif
 206         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 207         BIO_printf(bio_err," -quiet        - no s_client output\n");
 208         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 209         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 210         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 211         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 212         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 213         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 214         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 215         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 216         BIO_printf(bio_err,"                 command to see what is available\n");
 217         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 218         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 219         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 220         BIO_printf(bio_err,"                 only \"smtp\" and \"pop3\" are supported.\n");
 221 #ifndef OPENSSL_NO_ENGINE
 222         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 223 #endif
 224         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 225
 226         }
 227
 228 int MAIN(int, char **);
 229
 230 int MAIN(int argc, char **argv)
 231         {
 232         int off=0;
 233         SSL *con=NULL,*con2=NULL;
 234         X509_STORE *store = NULL;
 235         int s,k,width,state=0;
 236         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 237         int cbuf_len,cbuf_off;
 238         int sbuf_len,sbuf_off;
 239         fd_set readfds,writefds;
 240         short port=PORT;
 241         int full_log=1;
 242         char *host=SSL_HOST_NAME;
 243         char *cert_file=NULL,*key_file=NULL;
 244         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 245         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 246         int crlf=0;
 247         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 248         SSL_CTX *ctx=NULL;
 249         int ret=1,in_init=1,i,nbio_test=0;
 250         int starttls_proto = 0;
 251         int prexit = 0, vflags = 0;
 252         SSL_METHOD *meth=NULL;
 253         BIO *sbio;
 254         char *inrand=NULL;
 255 #ifndef OPENSSL_NO_ENGINE
 256         char *engine_id=NULL;
 257         ENGINE *e=NULL;
 258 #endif
 259 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
 260         struct timeval tv;
 261 #endif
 262
 263 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 264         meth=SSLv23_client_method();
 265 #elif !defined(OPENSSL_NO_SSL3)
 266         meth=SSLv3_client_method();
 267 #elif !defined(OPENSSL_NO_SSL2)
 268         meth=SSLv2_client_method();
 269 #endif
 270
 271         apps_startup();
 272         c_Pause=0;
 273         c_quiet=0;
 274         c_ign_eof=0;
 275         c_debug=0;
 276         c_msg=0;
 277         c_showcerts=0;
 278
 279         if (bio_err == NULL)
 280                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 281
 282         if (!load_config(bio_err, NULL))
 283                 goto end;
 284
 285         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 286                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 287                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 288                 {
 289                 BIO_printf(bio_err,"out of memory\n");
 290                 goto end;
 291                 }
 292
 293         verify_depth=0;
 294         verify_error=X509_V_OK;
 295 #ifdef FIONBIO
 296         c_nbio=0;
 297 #endif
 298
 299         argc--;
 300         argv++;
 301         while (argc >= 1)
 302                 {
 303                 if      (strcmp(*argv,"-host") == 0)
 304                         {
 305                         if (--argc < 1) goto bad;
 306                         host= *(++argv);
 307                         }
 308                 else if (strcmp(*argv,"-port") == 0)
 309                         {
 310                         if (--argc < 1) goto bad;
 311                         port=atoi(*(++argv));
 312                         if (port == 0) goto bad;
 313                         }
 314                 else if (strcmp(*argv,"-connect") == 0)
 315                         {
 316                         if (--argc < 1) goto bad;
 317                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 318                                 goto bad;
 319                         }
 320                 else if (strcmp(*argv,"-verify") == 0)
 321                         {
 322                         verify=SSL_VERIFY_PEER;
 323                         if (--argc < 1) goto bad;
 324                         verify_depth=atoi(*(++argv));
 325                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 326                         }
 327                 else if (strcmp(*argv,"-cert") == 0)
 328                         {
 329                         if (--argc < 1) goto bad;
 330                         cert_file= *(++argv);
 331                         }
 332                 else if (strcmp(*argv,"-crl_check") == 0)
 333                         vflags |= X509_V_FLAG_CRL_CHECK;
 334                 else if (strcmp(*argv,"-crl_check_all") == 0)
 335                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 336                 else if (strcmp(*argv,"-prexit") == 0)
 337                         prexit=1;
 338                 else if (strcmp(*argv,"-crlf") == 0)
 339                         crlf=1;
 340                 else if (strcmp(*argv,"-quiet") == 0)
 341                         {
 342                         c_quiet=1;
 343                         c_ign_eof=1;
 344                         }
 345                 else if (strcmp(*argv,"-ign_eof") == 0)
 346                         c_ign_eof=1;
 347                 else if (strcmp(*argv,"-pause") == 0)
 348                         c_Pause=1;
 349                 else if (strcmp(*argv,"-debug") == 0)
 350                         c_debug=1;
 351                 else if (strcmp(*argv,"-msg") == 0)
 352                         c_msg=1;
 353                 else if (strcmp(*argv,"-showcerts") == 0)
 354                         c_showcerts=1;
 355                 else if (strcmp(*argv,"-nbio_test") == 0)
 356                         nbio_test=1;
 357                 else if (strcmp(*argv,"-state") == 0)
 358                         state=1;
 359 #ifndef OPENSSL_NO_SSL2
 360                 else if (strcmp(*argv,"-ssl2") == 0)
 361                         meth=SSLv2_client_method();
 362 #endif
 363 #ifndef OPENSSL_NO_SSL3
 364                 else if (strcmp(*argv,"-ssl3") == 0)
 365                         meth=SSLv3_client_method();
 366 #endif
 367 #ifndef OPENSSL_NO_TLS1
 368                 else if (strcmp(*argv,"-tls1") == 0)
 369                         meth=TLSv1_client_method();
 370 #endif
 371                 else if (strcmp(*argv,"-bugs") == 0)
 372                         bugs=1;
 373                 else if (strcmp(*argv,"-key") == 0)
 374                         {
 375                         if (--argc < 1) goto bad;
 376                         key_file= *(++argv);
 377                         }
 378                 else if (strcmp(*argv,"-reconnect") == 0)
 379                         {
 380                         reconnect=5;
 381                         }
 382                 else if (strcmp(*argv,"-CApath") == 0)
 383                         {
 384                         if (--argc < 1) goto bad;
 385                         CApath= *(++argv);
 386                         }
 387                 else if (strcmp(*argv,"-CAfile") == 0)
 388                         {
 389                         if (--argc < 1) goto bad;
 390                         CAfile= *(++argv);
 391                         }
 392                 else if (strcmp(*argv,"-no_tls1") == 0)
 393                         off|=SSL_OP_NO_TLSv1;
 394                 else if (strcmp(*argv,"-no_ssl3") == 0)
 395                         off|=SSL_OP_NO_SSLv3;
 396                 else if (strcmp(*argv,"-no_ssl2") == 0)
 397                         off|=SSL_OP_NO_SSLv2;
 398                 else if (strcmp(*argv,"-serverpref") == 0)
 399                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 400                 else if (strcmp(*argv,"-cipher") == 0)
 401                         {
 402                         if (--argc < 1) goto bad;
 403                         cipher= *(++argv);
 404                         }
 405 #ifdef FIONBIO
 406                 else if (strcmp(*argv,"-nbio") == 0)
 407                         { c_nbio=1; }
 408 #endif
 409                 else if (strcmp(*argv,"-starttls") == 0)
 410                         {
 411                         if (--argc < 1) goto bad;
 412                         ++argv;
 413                         if (strcmp(*argv,"smtp") == 0)
 414                                 starttls_proto = 1;
 415                         else if (strcmp(*argv,"pop3") == 0)
 416                                 starttls_proto = 2;
 417                         else
 418                                 goto bad;
 419                         }
 420 #ifndef OPENSSL_NO_ENGINE
 421                 else if (strcmp(*argv,"-engine") == 0)
 422                         {
 423                         if (--argc < 1) goto bad;
 424                         engine_id = *(++argv);
 425                         }
 426 #endif
 427                 else if (strcmp(*argv,"-rand") == 0)
 428                         {
 429                         if (--argc < 1) goto bad;
 430                         inrand= *(++argv);
 431                         }
 432                 else
 433                         {
 434                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 435                         badop=1;
 436                         break;
 437                         }
 438                 argc--;
 439                 argv++;
 440                 }
 441         if (badop)
 442                 {
 443 bad:
 444                 sc_usage();
 445                 goto end;
 446                 }
 447
 448         OpenSSL_add_ssl_algorithms();
 449         SSL_load_error_strings();
 450
 451 #ifndef OPENSSL_NO_ENGINE
 452         e = setup_engine(bio_err, engine_id, 1);
 453 #endif
 454
 455         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 456                 && !RAND_status())
 457                 {
 458                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 459                 }
 460         if (inrand != NULL)
 461                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 462                         app_RAND_load_files(inrand));
 463
 464         if (bio_c_out == NULL)
 465                 {
 466                 if (c_quiet && !c_debug && !c_msg)
 467                         {
 468                         bio_c_out=BIO_new(BIO_s_null());
 469                         }
 470                 else
 471                         {
 472                         if (bio_c_out == NULL)
 473                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 474                         }
 475                 }
 476
 477         ctx=SSL_CTX_new(meth);
 478         if (ctx == NULL)
 479                 {
 480                 ERR_print_errors(bio_err);
 481                 goto end;
 482                 }
 483
 484         if (bugs)
 485                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 486         else
 487                 SSL_CTX_set_options(ctx,off);
 488
 489         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 490         if (cipher != NULL)
 491                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 492                 BIO_printf(bio_err,"error setting cipher list\n");
 493                 ERR_print_errors(bio_err);
 494                 goto end;
 495         }
 496 #if 0
 497         else
 498                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 499 #endif
 500
 501         SSL_CTX_set_verify(ctx,verify,verify_callback);
 502         if (!set_cert_stuff(ctx,cert_file,key_file))
 503                 goto end;
 504
 505         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 506                 (!SSL_CTX_set_default_verify_paths(ctx)))
 507                 {
 508                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 509                 ERR_print_errors(bio_err);
 510                 /* goto end; */
 511                 }
 512
 513         store = SSL_CTX_get_cert_store(ctx);
 514         X509_STORE_set_flags(store, vflags);
 515
 516         con=SSL_new(ctx);
 517 #ifndef OPENSSL_NO_KRB5
 518         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 519                 {
 520                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 521                 }
 522 #endif  /* OPENSSL_NO_KRB5  */
 523 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 524
 525 re_start:
 526
 527         if (init_client(&s,host,port) == 0)
 528                 {
 529                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 530                 SHUTDOWN(s);
 531                 goto end;
 532                 }
 533         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 534
 535 #ifdef FIONBIO
 536         if (c_nbio)
 537                 {
 538                 unsigned long l=1;
 539                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 540                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 541                         {
 542                         ERR_print_errors(bio_err);
 543                         goto end;
 544                         }
 545                 }
 546 #endif
 547         if (c_Pause & 0x01) con->debug=1;
 548         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 549
 550         if (nbio_test)
 551                 {
 552                 BIO *test;
 553
 554                 test=BIO_new(BIO_f_nbio_test());
 555                 sbio=BIO_push(test,sbio);
 556                 }
 557
 558         if (c_debug)
 559                 {
 560                 con->debug=1;
 561                 BIO_set_callback(sbio,bio_dump_callback);
 562                 BIO_set_callback_arg(sbio,bio_c_out);
 563                 }
 564         if (c_msg)
 565                 {
 566                 SSL_set_msg_callback(con, msg_cb);
 567                 SSL_set_msg_callback_arg(con, bio_c_out);
 568                 }
 569
 570         SSL_set_bio(con,sbio,sbio);
 571         SSL_set_connect_state(con);
 572
 573         /* ok, lets connect */
 574         width=SSL_get_fd(con)+1;
 575
 576         read_tty=1;
 577         write_tty=0;
 578         tty_on=0;
 579         read_ssl=1;
 580         write_ssl=1;
 581
 582         cbuf_len=0;
 583         cbuf_off=0;
 584         sbuf_len=0;
 585         sbuf_off=0;
 586
 587         /* This is an ugly hack that does a lot of assumptions */
 588         if (starttls_proto == 1)
 589                 {
 590                 BIO_read(sbio,mbuf,BUFSIZZ);
 591                 BIO_printf(sbio,"STARTTLS\r\n");
 592                 BIO_read(sbio,sbuf,BUFSIZZ);
 593                 }
 594         if (starttls_proto == 2)
 595                 {
 596                 BIO_read(sbio,mbuf,BUFSIZZ);
 597                 BIO_printf(sbio,"STLS\r\n");
 598                 BIO_read(sbio,sbuf,BUFSIZZ);
 599                 }
 600
 601         for (;;)
 602                 {
 603                 FD_ZERO(&readfds);
 604                 FD_ZERO(&writefds);
 605
 606                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
 607                         {
 608                         in_init=1;
 609                         tty_on=0;
 610                         }
 611                 else
 612                         {
 613                         tty_on=1;
 614                         if (in_init)
 615                                 {
 616                                 in_init=0;
 617                                 print_stuff(bio_c_out,con,full_log);
 618                                 if (full_log > 0) full_log--;
 619
 620                                 if (starttls_proto)
 621                                         {
 622                                         BIO_printf(bio_err,"%s",mbuf);
 623                                         /* We don't need to know any more */
 624                                         starttls_proto = 0;
 625                                         }
 626
 627                                 if (reconnect)
 628                                         {
 629                                         reconnect--;
 630                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
 631                                         SSL_shutdown(con);
 632                                         SSL_set_connect_state(con);
 633                                         SHUTDOWN(SSL_get_fd(con));
 634                                         goto re_start;
 635                                         }
 636                                 }
 637                         }
 638
 639                 ssl_pending = read_ssl && SSL_pending(con);
 640
 641                 if (!ssl_pending)
 642                         {
 643 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)
 644                         if (tty_on)
 645                                 {
 646                                 if (read_tty)  FD_SET(fileno(stdin),&readfds);
 647                                 if (write_tty) FD_SET(fileno(stdout),&writefds);
 648                                 }
 649                         if (read_ssl)
 650                                 FD_SET(SSL_get_fd(con),&readfds);
 651                         if (write_ssl)
 652                                 FD_SET(SSL_get_fd(con),&writefds);
 653 #else
 654                         if(!tty_on || !write_tty) {
 655                                 if (read_ssl)
 656                                         FD_SET(SSL_get_fd(con),&readfds);
 657                                 if (write_ssl)
 658                                         FD_SET(SSL_get_fd(con),&writefds);
 659                         }
 660 #endif
 661 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
 662                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
 663
 664                         /* Note: under VMS with SOCKETSHR the second parameter
 665                          * is currently of type (int *) whereas under other
 666                          * systems it is (void *) if you don't have a cast it
 667                          * will choke the compiler: if you do have a cast then
 668                          * you can either go for (int *) or (void *).
 669                          */
 670 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
 671                         /* Under Windows/DOS we make the assumption that we can
 672                          * always write to the tty: therefore if we need to
 673                          * write to the tty we just fall through. Otherwise
 674                          * we timeout the select every second and see if there
 675                          * are any keypresses. Note: this is a hack, in a proper
 676                          * Windows application we wouldn't do this.
 677                          */
 678                         i=0;
 679                         if(!write_tty) {
 680                                 if(read_tty) {
 681                                         tv.tv_sec = 1;
 682                                         tv.tv_usec = 0;
 683                                         i=select(width,(void *)&readfds,(void *)&writefds,
 684                                                  NULL,&tv);
 685 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
 686                                         if(!i && (!_kbhit() || !read_tty) ) continue;
 687 #else
 688                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
 689 #endif
 690                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
 691                                          NULL,NULL);
 692                         }
 693 #elif defined(OPENSSL_SYS_NETWARE)
 694                         if(!write_tty) {
 695                                 if(read_tty) {
 696                                         tv.tv_sec = 1;
 697                                         tv.tv_usec = 0;
 698                                         i=select(width,(void *)&readfds,(void *)&writefds,
 699                                                 NULL,&tv);
 700                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
 701                                         NULL,NULL);
 702                         }
 703 #else
 704                         i=select(width,(void *)&readfds,(void *)&writefds,
 705                                  NULL,NULL);
 706 #endif
 707                         if ( i < 0)
 708                                 {
 709                                 BIO_printf(bio_err,"bad select %d\n",
 710                                 get_last_socket_error());
 711                                 goto shut;
 712                                 /* goto end; */
 713                                 }
 714                         }
 715
 716                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
 717                         {
 718                         k=SSL_write(con,&(cbuf[cbuf_off]),
 719                                 (unsigned int)cbuf_len);
 720                         switch (SSL_get_error(con,k))
 721                                 {
 722                         case SSL_ERROR_NONE:
 723                                 cbuf_off+=k;
 724                                 cbuf_len-=k;
 725                                 if (k <= 0) goto end;
 726                                 /* we have done a  write(con,NULL,0); */
 727                                 if (cbuf_len <= 0)
 728                                         {
 729                                         read_tty=1;
 730                                         write_ssl=0;
 731                                         }
 732                                 else /* if (cbuf_len > 0) */
 733                                         {
 734                                         read_tty=0;
 735                                         write_ssl=1;
 736                                         }
 737                                 break;
 738                         case SSL_ERROR_WANT_WRITE:
 739                                 BIO_printf(bio_c_out,"write W BLOCK\n");
 740                                 write_ssl=1;
 741                                 read_tty=0;
 742                                 break;
 743                         case SSL_ERROR_WANT_READ:
 744                                 BIO_printf(bio_c_out,"write R BLOCK\n");
 745                                 write_tty=0;
 746                                 read_ssl=1;
 747                                 write_ssl=0;
 748                                 break;
 749                         case SSL_ERROR_WANT_X509_LOOKUP:
 750                                 BIO_printf(bio_c_out,"write X BLOCK\n");
 751                                 break;
 752                         case SSL_ERROR_ZERO_RETURN:
 753                                 if (cbuf_len != 0)
 754                                         {
 755                                         BIO_printf(bio_c_out,"shutdown\n");
 756                                         goto shut;
 757                                         }
 758                                 else
 759                                         {
 760                                         read_tty=1;
 761                                         write_ssl=0;
 762                                         break;
 763                                         }
 764
 765                         case SSL_ERROR_SYSCALL:
 766                                 if ((k != 0) || (cbuf_len != 0))
 767                                         {
 768                                         BIO_printf(bio_err,"write:errno=%d\n",
 769                                                 get_last_socket_error());
 770                                         goto shut;
 771                                         }
 772                                 else
 773                                         {
 774                                         read_tty=1;
 775                                         write_ssl=0;
 776                                         }
 777                                 break;
 778                         case SSL_ERROR_SSL:
 779                                 ERR_print_errors(bio_err);
 780                                 goto shut;
 781                                 }
 782                         }
 783 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
 784                 /* Assume Windows/DOS can always write */
 785                 else if (!ssl_pending && write_tty)
 786 #else
 787                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
 788 #endif
 789                         {
 790 #ifdef CHARSET_EBCDIC
 791                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
 792 #endif
 793                         i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
 794
 795                         if (i <= 0)
 796                                 {
 797                                 BIO_printf(bio_c_out,"DONE\n");
 798                                 goto shut;
 799                                 /* goto end; */
 800                                 }
 801
 802                         sbuf_len-=i;;
 803                         sbuf_off+=i;
 804                         if (sbuf_len <= 0)
 805                                 {
 806                                 read_ssl=1;
 807                                 write_tty=0;
 808                                 }
 809                         }
 810                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
 811                         {
 812 #ifdef RENEG
 813 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
 814 #endif
 815 #if 1
 816                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
 817 #else
 818 /* Demo for pending and peek :-) */
 819                         k=SSL_read(con,sbuf,16);
 820 { char zbuf[10240];
 821 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
 822 }
 823 #endif
 824
 825                         switch (SSL_get_error(con,k))
 826                                 {
 827                         case SSL_ERROR_NONE:
 828                                 if (k <= 0)
 829                                         goto end;
 830                                 sbuf_off=0;
 831                                 sbuf_len=k;
 832
 833                                 read_ssl=0;
 834                                 write_tty=1;
 835                                 break;
 836                         case SSL_ERROR_WANT_WRITE:
 837                                 BIO_printf(bio_c_out,"read W BLOCK\n");
 838                                 write_ssl=1;
 839                                 read_tty=0;
 840                                 break;
 841                         case SSL_ERROR_WANT_READ:
 842                                 BIO_printf(bio_c_out,"read R BLOCK\n");
 843                                 write_tty=0;
 844                                 read_ssl=1;
 845                                 if ((read_tty == 0) && (write_ssl == 0))
 846                                         write_ssl=1;
 847                                 break;
 848                         case SSL_ERROR_WANT_X509_LOOKUP:
 849                                 BIO_printf(bio_c_out,"read X BLOCK\n");
 850                                 break;
 851                         case SSL_ERROR_SYSCALL:
 852                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
 853                                 goto shut;
 854                         case SSL_ERROR_ZERO_RETURN:
 855                                 BIO_printf(bio_c_out,"closed\n");
 856                                 goto shut;
 857                         case SSL_ERROR_SSL:
 858                                 ERR_print_errors(bio_err);
 859                                 goto shut;
 860                                 /* break; */
 861                                 }
 862                         }
 863
 864 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
 865 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
 866                 else if (_kbhit())
 867 #else
 868                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
 869 #endif
 870 #elif defined (OPENSSL_SYS_NETWARE)
 871         else if (_kbhit())
 872 #else
 873                 else if (FD_ISSET(fileno(stdin),&readfds))
 874 #endif
 875                         {
 876                         if (crlf)
 877                                 {
 878                                 int j, lf_num;
 879
 880                                 i=read(fileno(stdin),cbuf,BUFSIZZ/2);
 881                                 lf_num = 0;
 882                                 /* both loops are skipped when i <= 0 */
 883                                 for (j = 0; j < i; j++)
 884                                         if (cbuf[j] == '\n')
 885                                                 lf_num++;
 886                                 for (j = i-1; j >= 0; j--)
 887                                         {
 888                                         cbuf[j+lf_num] = cbuf[j];
 889                                         if (cbuf[j] == '\n')
 890                                                 {
 891                                                 lf_num--;
 892                                                 i++;
 893                                                 cbuf[j+lf_num] = '\r';
 894                                                 }
 895                                         }
 896                                 assert(lf_num == 0);
 897                                 }
 898                         else
 899                                 i=read(fileno(stdin),cbuf,BUFSIZZ);
 900
 901                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
 902                                 {
 903                                 BIO_printf(bio_err,"DONE\n");
 904                                 goto shut;
 905                                 }
 906
 907                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
 908                                 {
 909                                 BIO_printf(bio_err,"RENEGOTIATING\n");
 910                                 SSL_renegotiate(con);
 911                                 cbuf_len=0;
 912                                 }
 913                         else
 914                                 {
 915                                 cbuf_len=i;
 916                                 cbuf_off=0;
 917 #ifdef CHARSET_EBCDIC
 918                                 ebcdic2ascii(cbuf, cbuf, i);
 919 #endif
 920                                 }
 921
 922                         write_ssl=1;
 923                         read_tty=0;
 924                         }
 925                 }
 926 shut:
 927         SSL_shutdown(con);
 928         SHUTDOWN(SSL_get_fd(con));
 929         ret=0;
 930 end:
 931         if(prexit) print_stuff(bio_c_out,con,1);
 932         if (con != NULL) SSL_free(con);
 933         if (con2 != NULL) SSL_free(con2);
 934         if (ctx != NULL) SSL_CTX_free(ctx);
 935         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
 936         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
 937         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
 938         if (bio_c_out != NULL)
 939                 {
 940                 BIO_free(bio_c_out);
 941                 bio_c_out=NULL;
 942                 }
 943         apps_shutdown();
 944         OPENSSL_EXIT(ret);
 945         }
 946
 947
 948 static void print_stuff(BIO *bio, SSL *s, int full)
 949         {
 950         X509 *peer=NULL;
 951         char *p;
 952         static char *space="                ";
 953         char buf[BUFSIZ];
 954         STACK_OF(X509) *sk;
 955         STACK_OF(X509_NAME) *sk2;
 956         SSL_CIPHER *c;
 957         X509_NAME *xn;
 958         int j,i;
 959         const COMP_METHOD *comp, *expansion;
 960
 961         if (full)
 962                 {
 963                 int got_a_chain = 0;
 964
 965                 sk=SSL_get_peer_cert_chain(s);
 966                 if (sk != NULL)
 967                         {
 968                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
 969
 970                         BIO_printf(bio,"---\nCertificate chain\n");
 971                         for (i=0; i<sk_X509_num(sk); i++)
 972                                 {
 973                                 X509_NAME_oneline(X509_get_subject_name(
 974                                         sk_X509_value(sk,i)),buf,sizeof buf);
 975                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
 976                                 X509_NAME_oneline(X509_get_issuer_name(
 977                                         sk_X509_value(sk,i)),buf,sizeof buf);
 978                                 BIO_printf(bio,"   i:%s\n",buf);
 979                                 if (c_showcerts)
 980                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
 981                                 }
 982                         }
 983
 984                 BIO_printf(bio,"---\n");
 985                 peer=SSL_get_peer_certificate(s);
 986                 if (peer != NULL)
 987                         {
 988                         BIO_printf(bio,"Server certificate\n");
 989                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
 990                                 PEM_write_bio_X509(bio,peer);
 991                         X509_NAME_oneline(X509_get_subject_name(peer),
 992                                 buf,sizeof buf);
 993                         BIO_printf(bio,"subject=%s\n",buf);
 994                         X509_NAME_oneline(X509_get_issuer_name(peer),
 995                                 buf,sizeof buf);
 996                         BIO_printf(bio,"issuer=%s\n",buf);
 997                         }
 998                 else
 999                         BIO_printf(bio,"no peer certificate available\n");
1000
1001                 sk2=SSL_get_client_CA_list(s);
1002                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1003                         {
1004                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1005                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1006                                 {
1007                                 xn=sk_X509_NAME_value(sk2,i);
1008                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1009                                 BIO_write(bio,buf,strlen(buf));
1010                                 BIO_write(bio,"\n",1);
1011                                 }
1012                         }
1013                 else
1014                         {
1015                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1016                         }
1017                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1018                 if (p != NULL)
1019                         {
1020                         /* This works only for SSL 2.  In later protocol
1021                          * versions, the client does not know what other
1022                          * ciphers (in addition to the one to be used
1023                          * in the current connection) the server supports. */
1024
1025                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1026                         j=i=0;
1027                         while (*p)
1028                                 {
1029                                 if (*p == ':')
1030                                         {
1031                                         BIO_write(bio,space,15-j%25);
1032                                         i++;
1033                                         j=0;
1034                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1035                                         }
1036                                 else
1037                                         {
1038                                         BIO_write(bio,p,1);
1039                                         j++;
1040                                         }
1041                                 p++;
1042                                 }
1043                         BIO_write(bio,"\n",1);
1044                         }
1045
1046                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1047                         BIO_number_read(SSL_get_rbio(s)),
1048                         BIO_number_written(SSL_get_wbio(s)));
1049                 }
1050         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1051         c=SSL_get_current_cipher(s);
1052         BIO_printf(bio,"%s, Cipher is %s\n",
1053                 SSL_CIPHER_get_version(c),
1054                 SSL_CIPHER_get_name(c));
1055         if (peer != NULL) {
1056                 EVP_PKEY *pktmp;
1057                 pktmp = X509_get_pubkey(peer);
1058                 BIO_printf(bio,"Server public key is %d bit\n",
1059                                                          EVP_PKEY_bits(pktmp));
1060                 EVP_PKEY_free(pktmp);
1061         }
1062         comp=SSL_get_current_compression(s);
1063         expansion=SSL_get_current_expansion(s);
1064         BIO_printf(bio,"Compression: %s\n",
1065                 comp ? SSL_COMP_get_name(comp) : "NONE");
1066         BIO_printf(bio,"Expansion: %s\n",
1067                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1068         SSL_SESSION_print(bio,SSL_get_session(s));
1069         BIO_printf(bio,"---\n");
1070         if (peer != NULL)
1071                 X509_free(peer);
1072         /* flush, or debugging output gets mixed with http response */
1073         BIO_flush(bio);
1074         }
1075