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