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\" is 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 smtp_starttls = 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                                 smtp_starttls = 1;
 419                         else
 420                                 goto bad;
 421                         }
 422 #ifndef OPENSSL_NO_ENGINE
 423                 else if (strcmp(*argv,"-engine") == 0)
 424                         {
 425                         if (--argc < 1) goto bad;
 426                         engine_id = *(++argv);
 427                         }
 428 #endif
 429                 else if (strcmp(*argv,"-rand") == 0)
 430                         {
 431                         if (--argc < 1) goto bad;
 432                         inrand= *(++argv);
 433                         }
 434                 else
 435                         {
 436                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 437                         badop=1;
 438                         break;
 439                         }
 440                 argc--;
 441                 argv++;
 442                 }
 443         if (badop)
 444                 {
 445 bad:
 446                 sc_usage();
 447                 goto end;
 448                 }
 449
 450         OpenSSL_add_ssl_algorithms();
 451         SSL_load_error_strings();
 452
 453 #ifndef OPENSSL_NO_ENGINE
 454         e = setup_engine(bio_err, engine_id, 1);
 455 #endif
 456
 457         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 458                 && !RAND_status())
 459                 {
 460                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 461                 }
 462         if (inrand != NULL)
 463                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 464                         app_RAND_load_files(inrand));
 465
 466         if (bio_c_out == NULL)
 467                 {
 468                 if (c_quiet && !c_debug && !c_msg)
 469                         {
 470                         bio_c_out=BIO_new(BIO_s_null());
 471                         }
 472                 else
 473                         {
 474                         if (bio_c_out == NULL)
 475                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 476                         }
 477                 }
 478
 479         ctx=SSL_CTX_new(meth);
 480         if (ctx == NULL)
 481                 {
 482                 ERR_print_errors(bio_err);
 483                 goto end;
 484                 }
 485
 486         if (bugs)
 487                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 488         else
 489                 SSL_CTX_set_options(ctx,off);
 490
 491         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 492         if (cipher != NULL)
 493                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 494                 BIO_printf(bio_err,"error setting cipher list\n");
 495                 ERR_print_errors(bio_err);
 496                 goto end;
 497         }
 498 #if 0
 499         else
 500                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 501 #endif
 502
 503         SSL_CTX_set_verify(ctx,verify,verify_callback);
 504         if (!set_cert_stuff(ctx,cert_file,key_file))
 505                 goto end;
 506
 507         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 508                 (!SSL_CTX_set_default_verify_paths(ctx)))
 509                 {
 510                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 511                 ERR_print_errors(bio_err);
 512                 /* goto end; */
 513                 }
 514
 515         store = SSL_CTX_get_cert_store(ctx);
 516         X509_STORE_set_flags(store, vflags);
 517
 518         con=SSL_new(ctx);
 519 #ifndef OPENSSL_NO_KRB5
 520         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 521                 {
 522                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 523                 }
 524 #endif  /* OPENSSL_NO_KRB5  */
 525 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 526
 527 re_start:
 528
 529         if (init_client(&s,host,port) == 0)
 530                 {
 531                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 532                 SHUTDOWN(s);
 533                 goto end;
 534                 }
 535         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 536
 537 #ifdef FIONBIO
 538         if (c_nbio)
 539                 {
 540                 unsigned long l=1;
 541                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 542                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 543                         {
 544                         ERR_print_errors(bio_err);
 545                         goto end;
 546                         }
 547                 }
 548 #endif
 549         if (c_Pause & 0x01) con->debug=1;
 550         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 551
 552         if (nbio_test)
 553                 {
 554                 BIO *test;
 555
 556                 test=BIO_new(BIO_f_nbio_test());
 557                 sbio=BIO_push(test,sbio);
 558                 }
 559
 560         if (c_debug)
 561                 {
 562                 con->debug=1;
 563                 BIO_set_callback(sbio,bio_dump_cb);
 564                 BIO_set_callback_arg(sbio,bio_c_out);
 565                 }
 566         if (c_msg)
 567                 {
 568                 SSL_set_msg_callback(con, msg_cb);
 569                 SSL_set_msg_callback_arg(con, bio_c_out);
 570                 }
 571
 572         SSL_set_bio(con,sbio,sbio);
 573         SSL_set_connect_state(con);
 574
 575         /* ok, lets connect */
 576         width=SSL_get_fd(con)+1;
 577
 578         read_tty=1;
 579         write_tty=0;
 580         tty_on=0;
 581         read_ssl=1;
 582         write_ssl=1;
 583
 584         cbuf_len=0;
 585         cbuf_off=0;
 586         sbuf_len=0;
 587         sbuf_off=0;
 588
 589         /* This is an ugly hack that does a lot of assumptions */
 590         if (smtp_starttls)
 591                 {
 592                 BIO_read(sbio,mbuf,BUFSIZZ);
 593                 BIO_printf(sbio,"STARTTLS\r\n");
 594                 BIO_read(sbio,sbuf,BUFSIZZ);
 595                 }
 596
 597         for (;;)
 598                 {
 599                 FD_ZERO(&readfds);
 600                 FD_ZERO(&writefds);
 601
 602                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
 603                         {
 604                         in_init=1;
 605                         tty_on=0;
 606                         }
 607                 else
 608                         {
 609                         tty_on=1;
 610                         if (in_init)
 611                                 {
 612                                 in_init=0;
 613                                 print_stuff(bio_c_out,con,full_log);
 614                                 if (full_log > 0) full_log--;
 615
 616                                 if (smtp_starttls)
 617                                         {
 618                                         BIO_printf(bio_err,"%s",mbuf);
 619                                         /* We don't need to know any more */
 620                                         smtp_starttls = 0;
 621                                         }
 622
 623                                 if (reconnect)
 624                                         {
 625                                         reconnect--;
 626                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
 627                                         SSL_shutdown(con);
 628                                         SSL_set_connect_state(con);
 629                                         SHUTDOWN(SSL_get_fd(con));
 630                                         goto re_start;
 631                                         }
 632                                 }
 633                         }
 634
 635                 ssl_pending = read_ssl && SSL_pending(con);
 636
 637                 if (!ssl_pending)
 638                         {
 639 #ifndef OPENSSL_SYS_WINDOWS
 640                         if (tty_on)
 641                                 {
 642                                 if (read_tty)  FD_SET(fileno(stdin),&readfds);
 643                                 if (write_tty) FD_SET(fileno(stdout),&writefds);
 644                                 }
 645                         if (read_ssl)
 646                                 FD_SET(SSL_get_fd(con),&readfds);
 647                         if (write_ssl)
 648                                 FD_SET(SSL_get_fd(con),&writefds);
 649 #else
 650                         if(!tty_on || !write_tty) {
 651                                 if (read_ssl)
 652                                         FD_SET(SSL_get_fd(con),&readfds);
 653                                 if (write_ssl)
 654                                         FD_SET(SSL_get_fd(con),&writefds);
 655                         }
 656 #endif
 657 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
 658                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
 659
 660                         /* Note: under VMS with SOCKETSHR the second parameter
 661                          * is currently of type (int *) whereas under other
 662                          * systems it is (void *) if you don't have a cast it
 663                          * will choke the compiler: if you do have a cast then
 664                          * you can either go for (int *) or (void *).
 665                          */
 666 #ifdef OPENSSL_SYS_WINDOWS
 667                         /* Under Windows we make the assumption that we can
 668                          * always write to the tty: therefore if we need to
 669                          * write to the tty we just fall through. Otherwise
 670                          * we timeout the select every second and see if there
 671                          * are any keypresses. Note: this is a hack, in a proper
 672                          * Windows application we wouldn't do this.
 673                          */
 674                         i=0;
 675                         if(!write_tty) {
 676                                 if(read_tty) {
 677                                         tv.tv_sec = 1;
 678                                         tv.tv_usec = 0;
 679                                         i=select(width,(void *)&readfds,(void *)&writefds,
 680                                                  NULL,&tv);
 681 #ifdef OPENSSL_SYS_WINCE
 682                                         if(!i && (!_kbhit() || !read_tty) ) continue;
 683 #else
 684                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
 685 #endif
 686                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
 687                                          NULL,NULL);
 688                         }
 689 #else
 690                         i=select(width,(void *)&readfds,(void *)&writefds,
 691                                  NULL,NULL);
 692 #endif
 693                         if ( i < 0)
 694                                 {
 695                                 BIO_printf(bio_err,"bad select %d\n",
 696                                 get_last_socket_error());
 697                                 goto shut;
 698                                 /* goto end; */
 699                                 }
 700                         }
 701
 702                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
 703                         {
 704                         k=SSL_write(con,&(cbuf[cbuf_off]),
 705                                 (unsigned int)cbuf_len);
 706                         switch (SSL_get_error(con,k))
 707                                 {
 708                         case SSL_ERROR_NONE:
 709                                 cbuf_off+=k;
 710                                 cbuf_len-=k;
 711                                 if (k <= 0) goto end;
 712                                 /* we have done a  write(con,NULL,0); */
 713                                 if (cbuf_len <= 0)
 714                                         {
 715                                         read_tty=1;
 716                                         write_ssl=0;
 717                                         }
 718                                 else /* if (cbuf_len > 0) */
 719                                         {
 720                                         read_tty=0;
 721                                         write_ssl=1;
 722                                         }
 723                                 break;
 724                         case SSL_ERROR_WANT_WRITE:
 725                                 BIO_printf(bio_c_out,"write W BLOCK\n");
 726                                 write_ssl=1;
 727                                 read_tty=0;
 728                                 break;
 729                         case SSL_ERROR_WANT_READ:
 730                                 BIO_printf(bio_c_out,"write R BLOCK\n");
 731                                 write_tty=0;
 732                                 read_ssl=1;
 733                                 write_ssl=0;
 734                                 break;
 735                         case SSL_ERROR_WANT_X509_LOOKUP:
 736                                 BIO_printf(bio_c_out,"write X BLOCK\n");
 737                                 break;
 738                         case SSL_ERROR_ZERO_RETURN:
 739                                 if (cbuf_len != 0)
 740                                         {
 741                                         BIO_printf(bio_c_out,"shutdown\n");
 742                                         goto shut;
 743                                         }
 744                                 else
 745                                         {
 746                                         read_tty=1;
 747                                         write_ssl=0;
 748                                         break;
 749                                         }
 750
 751                         case SSL_ERROR_SYSCALL:
 752                                 if ((k != 0) || (cbuf_len != 0))
 753                                         {
 754                                         BIO_printf(bio_err,"write:errno=%d\n",
 755                                                 get_last_socket_error());
 756                                         goto shut;
 757                                         }
 758                                 else
 759                                         {
 760                                         read_tty=1;
 761                                         write_ssl=0;
 762                                         }
 763                                 break;
 764                         case SSL_ERROR_SSL:
 765                                 ERR_print_errors(bio_err);
 766                                 goto shut;
 767                                 }
 768                         }
 769 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
 770                 /* Assume Windows/DOS can always write */
 771                 else if (!ssl_pending && write_tty)
 772 #else
 773                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
 774 #endif
 775                         {
 776 #ifdef CHARSET_EBCDIC
 777                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
 778 #endif
 779                         i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
 780
 781                         if (i <= 0)
 782                                 {
 783                                 BIO_printf(bio_c_out,"DONE\n");
 784                                 goto shut;
 785                                 /* goto end; */
 786                                 }
 787
 788                         sbuf_len-=i;;
 789                         sbuf_off+=i;
 790                         if (sbuf_len <= 0)
 791                                 {
 792                                 read_ssl=1;
 793                                 write_tty=0;
 794                                 }
 795                         }
 796                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
 797                         {
 798 #ifdef RENEG
 799 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
 800 #endif
 801 #if 1
 802                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
 803 #else
 804 /* Demo for pending and peek :-) */
 805                         k=SSL_read(con,sbuf,16);
 806 { char zbuf[10240];
 807 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
 808 }
 809 #endif
 810
 811                         switch (SSL_get_error(con,k))
 812                                 {
 813                         case SSL_ERROR_NONE:
 814                                 if (k <= 0)
 815                                         goto end;
 816                                 sbuf_off=0;
 817                                 sbuf_len=k;
 818
 819                                 read_ssl=0;
 820                                 write_tty=1;
 821                                 break;
 822                         case SSL_ERROR_WANT_WRITE:
 823                                 BIO_printf(bio_c_out,"read W BLOCK\n");
 824                                 write_ssl=1;
 825                                 read_tty=0;
 826                                 break;
 827                         case SSL_ERROR_WANT_READ:
 828                                 BIO_printf(bio_c_out,"read R BLOCK\n");
 829                                 write_tty=0;
 830                                 read_ssl=1;
 831                                 if ((read_tty == 0) && (write_ssl == 0))
 832                                         write_ssl=1;
 833                                 break;
 834                         case SSL_ERROR_WANT_X509_LOOKUP:
 835                                 BIO_printf(bio_c_out,"read X BLOCK\n");
 836                                 break;
 837                         case SSL_ERROR_SYSCALL:
 838                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
 839                                 goto shut;
 840                         case SSL_ERROR_ZERO_RETURN:
 841                                 BIO_printf(bio_c_out,"closed\n");
 842                                 goto shut;
 843                         case SSL_ERROR_SSL:
 844                                 ERR_print_errors(bio_err);
 845                                 goto shut;
 846                                 /* break; */
 847                                 }
 848                         }
 849
 850 #ifdef OPENSSL_SYS_WINDOWS
 851 #ifdef OPENSSL_SYS_WINCE
 852                 else if (_kbhit())
 853 #else
 854                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
 855 #endif
 856 #else
 857                 else if (FD_ISSET(fileno(stdin),&readfds))
 858 #endif
 859                         {
 860                         if (crlf)
 861                                 {
 862                                 int j, lf_num;
 863
 864                                 i=read(fileno(stdin),cbuf,BUFSIZZ/2);
 865                                 lf_num = 0;
 866                                 /* both loops are skipped when i <= 0 */
 867                                 for (j = 0; j < i; j++)
 868                                         if (cbuf[j] == '\n')
 869                                                 lf_num++;
 870                                 for (j = i-1; j >= 0; j--)
 871                                         {
 872                                         cbuf[j+lf_num] = cbuf[j];
 873                                         if (cbuf[j] == '\n')
 874                                                 {
 875                                                 lf_num--;
 876                                                 i++;
 877                                                 cbuf[j+lf_num] = '\r';
 878                                                 }
 879                                         }
 880                                 assert(lf_num == 0);
 881                                 }
 882                         else
 883                                 i=read(fileno(stdin),cbuf,BUFSIZZ);
 884
 885                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
 886                                 {
 887                                 BIO_printf(bio_err,"DONE\n");
 888                                 goto shut;
 889                                 }
 890
 891                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
 892                                 {
 893                                 BIO_printf(bio_err,"RENEGOTIATING\n");
 894                                 SSL_renegotiate(con);
 895                                 cbuf_len=0;
 896                                 }
 897                         else
 898                                 {
 899                                 cbuf_len=i;
 900                                 cbuf_off=0;
 901 #ifdef CHARSET_EBCDIC
 902                                 ebcdic2ascii(cbuf, cbuf, i);
 903 #endif
 904                                 }
 905
 906                         write_ssl=1;
 907                         read_tty=0;
 908                         }
 909                 }
 910 shut:
 911         SSL_shutdown(con);
 912         SHUTDOWN(SSL_get_fd(con));
 913         ret=0;
 914 end:
 915         if(prexit) print_stuff(bio_c_out,con,1);
 916         if (con != NULL) SSL_free(con);
 917         if (con2 != NULL) SSL_free(con2);
 918         if (ctx != NULL) SSL_CTX_free(ctx);
 919         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
 920         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
 921         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
 922         if (bio_c_out != NULL)
 923                 {
 924                 BIO_free(bio_c_out);
 925                 bio_c_out=NULL;
 926                 }
 927         apps_shutdown();
 928         OPENSSL_EXIT(ret);
 929         }
 930
 931
 932 static void print_stuff(BIO *bio, SSL *s, int full)
 933         {
 934         X509 *peer=NULL;
 935         char *p;
 936         static char *space="                ";
 937         char buf[BUFSIZ];
 938         STACK_OF(X509) *sk;
 939         STACK_OF(X509_NAME) *sk2;
 940         SSL_CIPHER *c;
 941         X509_NAME *xn;
 942         int j,i;
 943
 944         if (full)
 945                 {
 946                 int got_a_chain = 0;
 947
 948                 sk=SSL_get_peer_cert_chain(s);
 949                 if (sk != NULL)
 950                         {
 951                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
 952
 953                         BIO_printf(bio,"---\nCertificate chain\n");
 954                         for (i=0; i<sk_X509_num(sk); i++)
 955                                 {
 956                                 X509_NAME_oneline(X509_get_subject_name(
 957                                         sk_X509_value(sk,i)),buf,sizeof buf);
 958                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
 959                                 X509_NAME_oneline(X509_get_issuer_name(
 960                                         sk_X509_value(sk,i)),buf,sizeof buf);
 961                                 BIO_printf(bio,"   i:%s\n",buf);
 962                                 if (c_showcerts)
 963                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
 964                                 }
 965                         }
 966
 967                 BIO_printf(bio,"---\n");
 968                 peer=SSL_get_peer_certificate(s);
 969                 if (peer != NULL)
 970                         {
 971                         BIO_printf(bio,"Server certificate\n");
 972                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
 973                                 PEM_write_bio_X509(bio,peer);
 974                         X509_NAME_oneline(X509_get_subject_name(peer),
 975                                 buf,sizeof buf);
 976                         BIO_printf(bio,"subject=%s\n",buf);
 977                         X509_NAME_oneline(X509_get_issuer_name(peer),
 978                                 buf,sizeof buf);
 979                         BIO_printf(bio,"issuer=%s\n",buf);
 980                         }
 981                 else
 982                         BIO_printf(bio,"no peer certificate available\n");
 983
 984                 sk2=SSL_get_client_CA_list(s);
 985                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
 986                         {
 987                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
 988                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
 989                                 {
 990                                 xn=sk_X509_NAME_value(sk2,i);
 991                                 X509_NAME_oneline(xn,buf,sizeof(buf));
 992                                 BIO_write(bio,buf,strlen(buf));
 993                                 BIO_write(bio,"\n",1);
 994                                 }
 995                         }
 996                 else
 997                         {
 998                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
 999                         }
1000                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1001                 if (p != NULL)
1002                         {
1003                         /* This works only for SSL 2.  In later protocol
1004                          * versions, the client does not know what other
1005                          * ciphers (in addition to the one to be used
1006                          * in the current connection) the server supports. */
1007
1008                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1009                         j=i=0;
1010                         while (*p)
1011                                 {
1012                                 if (*p == ':')
1013                                         {
1014                                         BIO_write(bio,space,15-j%25);
1015                                         i++;
1016                                         j=0;
1017                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1018                                         }
1019                                 else
1020                                         {
1021                                         BIO_write(bio,p,1);
1022                                         j++;
1023                                         }
1024                                 p++;
1025                                 }
1026                         BIO_write(bio,"\n",1);
1027                         }
1028
1029                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1030                         BIO_number_read(SSL_get_rbio(s)),
1031                         BIO_number_written(SSL_get_wbio(s)));
1032                 }
1033         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1034         c=SSL_get_current_cipher(s);
1035         BIO_printf(bio,"%s, Cipher is %s\n",
1036                 SSL_CIPHER_get_version(c),
1037                 SSL_CIPHER_get_name(c));
1038         if (peer != NULL) {
1039                 EVP_PKEY *pktmp;
1040                 pktmp = X509_get_pubkey(peer);
1041                 BIO_printf(bio,"Server public key is %d bit\n",
1042                                                          EVP_PKEY_bits(pktmp));
1043                 EVP_PKEY_free(pktmp);
1044         }
1045         SSL_SESSION_print(bio,SSL_get_session(s));
1046         BIO_printf(bio,"---\n");
1047         if (peer != NULL)
1048                 X509_free(peer);
1049         /* flush, or debugging output gets mixed with http response */
1050         BIO_flush(bio);
1051         }
1052