apps/s_client.c

   1 /* apps/s_client.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111
 112 #include <assert.h>
 113 #include <stdio.h>
 114 #include <stdlib.h>
 115 #include <string.h>
 116 #include <openssl/e_os2.h>
 117 #ifdef OPENSSL_NO_STDIO
 118 #define APPS_WIN16
 119 #endif
 120
 121 /* With IPv6, it looks like Digital has mixed up the proper order of
 122    recursive header file inclusion, resulting in the compiler complaining
 123    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 124    is needed to have fileno() declared correctly...  So let's define u_int */
 125 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 126 #define __U_INT
 127 typedef unsigned int u_int;
 128 #endif
 129
 130 #define USE_SOCKETS
 131 #include "apps.h"
 132 #include <openssl/x509.h>
 133 #include <openssl/ssl.h>
 134 #include <openssl/err.h>
 135 #include <openssl/pem.h>
 136 #include <openssl/rand.h>
 137 #include "s_apps.h"
 138
 139 #ifdef OPENSSL_SYS_WINCE
 140 /* Windows CE incorrectly defines fileno as returning void*, so to avoid problems below... */
 141 #ifdef fileno
 142 #undef fileno
 143 #endif
 144 #define fileno(a) (int)_fileno(a)
 145 #endif
 146
 147
 148 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 149 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 150 #undef FIONBIO
 151 #endif
 152
 153 #undef PROG
 154 #define PROG    s_client_main
 155
 156 /*#define SSL_HOST_NAME "www.netscape.com" */
 157 /*#define SSL_HOST_NAME "193.118.187.102" */
 158 #define SSL_HOST_NAME   "localhost"
 159
 160 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 161
 162 #undef BUFSIZZ
 163 #define BUFSIZZ 1024*8
 164
 165 extern int verify_depth;
 166 extern int verify_error;
 167
 168 #ifdef FIONBIO
 169 static int c_nbio=0;
 170 #endif
 171 static int c_Pause=0;
 172 static int c_debug=0;
 173 static int c_msg=0;
 174 static int c_showcerts=0;
 175
 176 static void sc_usage(void);
 177 static void print_stuff(BIO *berr,SSL *con,int full);
 178 static BIO *bio_c_out=NULL;
 179 static int c_quiet=0;
 180 static int c_ign_eof=0;
 181
 182 static void sc_usage(void)
 183         {
 184         BIO_printf(bio_err,"usage: s_client args\n");
 185         BIO_printf(bio_err,"\n");
 186         BIO_printf(bio_err," -host host     - use -connect instead\n");
 187         BIO_printf(bio_err," -port port     - use -connect instead\n");
 188         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 189
 190         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 191         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 192         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 193         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 194         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 195         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 196         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 197         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 198         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 199         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 200         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 201         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 202         BIO_printf(bio_err," -debug        - extra output\n");
 203 #ifdef WATT32
 204         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 205 #endif
 206         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 207         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 208         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 209 #ifdef FIONBIO
 210         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 211 #endif
 212         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 213         BIO_printf(bio_err," -quiet        - no s_client output\n");
 214         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 215         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 216         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 217         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 218         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 219         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 220         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 221         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 222         BIO_printf(bio_err,"                 command to see what is available\n");
 223         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 224         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 225         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 226         BIO_printf(bio_err,"                 only \"smtp\" and \"pop3\" are supported.\n");
 227 #ifndef OPENSSL_NO_ENGINE
 228         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 229 #endif
 230         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 231
 232         }
 233
 234 int MAIN(int, char **);
 235
 236 int MAIN(int argc, char **argv)
 237         {
 238         int off=0;
 239         SSL *con=NULL,*con2=NULL;
 240         X509_STORE *store = NULL;
 241         int s,k,width,state=0;
 242         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 243         int cbuf_len,cbuf_off;
 244         int sbuf_len,sbuf_off;
 245         fd_set readfds,writefds;
 246         short port=PORT;
 247         int full_log=1;
 248         char *host=SSL_HOST_NAME;
 249         char *cert_file=NULL,*key_file=NULL;
 250         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 251         char *passarg = NULL, *pass = NULL;
 252         X509 *cert = NULL;
 253         EVP_PKEY *key = NULL;
 254         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 255         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 256         int crlf=0;
 257         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 258         SSL_CTX *ctx=NULL;
 259         int ret=1,in_init=1,i,nbio_test=0;
 260         int starttls_proto = 0;
 261         int prexit = 0, vflags = 0;
 262         SSL_METHOD *meth=NULL;
 263         BIO *sbio;
 264         char *inrand=NULL;
 265 #ifndef OPENSSL_NO_ENGINE
 266         char *engine_id=NULL;
 267         ENGINE *e=NULL;
 268 #endif
 269 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
 270         struct timeval tv;
 271 #endif
 272
 273 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 274         meth=SSLv23_client_method();
 275 #elif !defined(OPENSSL_NO_SSL3)
 276         meth=SSLv3_client_method();
 277 #elif !defined(OPENSSL_NO_SSL2)
 278         meth=SSLv2_client_method();
 279 #endif
 280
 281         apps_startup();
 282         c_Pause=0;
 283         c_quiet=0;
 284         c_ign_eof=0;
 285         c_debug=0;
 286         c_msg=0;
 287         c_showcerts=0;
 288
 289         if (bio_err == NULL)
 290                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 291
 292         if (!load_config(bio_err, NULL))
 293                 goto end;
 294
 295         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 296                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 297                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 298                 {
 299                 BIO_printf(bio_err,"out of memory\n");
 300                 goto end;
 301                 }
 302
 303         verify_depth=0;
 304         verify_error=X509_V_OK;
 305 #ifdef FIONBIO
 306         c_nbio=0;
 307 #endif
 308
 309         argc--;
 310         argv++;
 311         while (argc >= 1)
 312                 {
 313                 if      (strcmp(*argv,"-host") == 0)
 314                         {
 315                         if (--argc < 1) goto bad;
 316                         host= *(++argv);
 317                         }
 318                 else if (strcmp(*argv,"-port") == 0)
 319                         {
 320                         if (--argc < 1) goto bad;
 321                         port=atoi(*(++argv));
 322                         if (port == 0) goto bad;
 323                         }
 324                 else if (strcmp(*argv,"-connect") == 0)
 325                         {
 326                         if (--argc < 1) goto bad;
 327                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 328                                 goto bad;
 329                         }
 330                 else if (strcmp(*argv,"-verify") == 0)
 331                         {
 332                         verify=SSL_VERIFY_PEER;
 333                         if (--argc < 1) goto bad;
 334                         verify_depth=atoi(*(++argv));
 335                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 336                         }
 337                 else if (strcmp(*argv,"-cert") == 0)
 338                         {
 339                         if (--argc < 1) goto bad;
 340                         cert_file= *(++argv);
 341                         }
 342                 else if (strcmp(*argv,"-certform") == 0)
 343                         {
 344                         if (--argc < 1) goto bad;
 345                         cert_format = str2fmt(*(++argv));
 346                         }
 347                 else if (strcmp(*argv,"-crl_check") == 0)
 348                         vflags |= X509_V_FLAG_CRL_CHECK;
 349                 else if (strcmp(*argv,"-crl_check_all") == 0)
 350                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 351                 else if (strcmp(*argv,"-prexit") == 0)
 352                         prexit=1;
 353                 else if (strcmp(*argv,"-crlf") == 0)
 354                         crlf=1;
 355                 else if (strcmp(*argv,"-quiet") == 0)
 356                         {
 357                         c_quiet=1;
 358                         c_ign_eof=1;
 359                         }
 360                 else if (strcmp(*argv,"-ign_eof") == 0)
 361                         c_ign_eof=1;
 362                 else if (strcmp(*argv,"-pause") == 0)
 363                         c_Pause=1;
 364                 else if (strcmp(*argv,"-debug") == 0)
 365                         c_debug=1;
 366 #ifdef WATT32
 367                 else if (strcmp(*argv,"-wdebug") == 0)
 368                         dbug_init();
 369 #endif
 370                 else if (strcmp(*argv,"-msg") == 0)
 371                         c_msg=1;
 372                 else if (strcmp(*argv,"-showcerts") == 0)
 373                         c_showcerts=1;
 374                 else if (strcmp(*argv,"-nbio_test") == 0)
 375                         nbio_test=1;
 376                 else if (strcmp(*argv,"-state") == 0)
 377                         state=1;
 378 #ifndef OPENSSL_NO_SSL2
 379                 else if (strcmp(*argv,"-ssl2") == 0)
 380                         meth=SSLv2_client_method();
 381 #endif
 382 #ifndef OPENSSL_NO_SSL3
 383                 else if (strcmp(*argv,"-ssl3") == 0)
 384                         meth=SSLv3_client_method();
 385 #endif
 386 #ifndef OPENSSL_NO_TLS1
 387                 else if (strcmp(*argv,"-tls1") == 0)
 388                         meth=TLSv1_client_method();
 389 #endif
 390                 else if (strcmp(*argv,"-bugs") == 0)
 391                         bugs=1;
 392                 else if (strcmp(*argv,"-keyform") == 0)
 393                         {
 394                         if (--argc < 1) goto bad;
 395                         key_format = str2fmt(*(++argv));
 396                         }
 397                 else if (strcmp(*argv,"-pass") == 0)
 398                         {
 399                         if (--argc < 1) goto bad;
 400                         passarg = *(++argv);
 401                         }
 402                 else if (strcmp(*argv,"-key") == 0)
 403                         {
 404                         if (--argc < 1) goto bad;
 405                         key_file= *(++argv);
 406                         }
 407                 else if (strcmp(*argv,"-reconnect") == 0)
 408                         {
 409                         reconnect=5;
 410                         }
 411                 else if (strcmp(*argv,"-CApath") == 0)
 412                         {
 413                         if (--argc < 1) goto bad;
 414                         CApath= *(++argv);
 415                         }
 416                 else if (strcmp(*argv,"-CAfile") == 0)
 417                         {
 418                         if (--argc < 1) goto bad;
 419                         CAfile= *(++argv);
 420                         }
 421                 else if (strcmp(*argv,"-no_tls1") == 0)
 422                         off|=SSL_OP_NO_TLSv1;
 423                 else if (strcmp(*argv,"-no_ssl3") == 0)
 424                         off|=SSL_OP_NO_SSLv3;
 425                 else if (strcmp(*argv,"-no_ssl2") == 0)
 426                         off|=SSL_OP_NO_SSLv2;
 427                 else if (strcmp(*argv,"-serverpref") == 0)
 428                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 429                 else if (strcmp(*argv,"-cipher") == 0)
 430                         {
 431                         if (--argc < 1) goto bad;
 432                         cipher= *(++argv);
 433                         }
 434 #ifdef FIONBIO
 435                 else if (strcmp(*argv,"-nbio") == 0)
 436                         { c_nbio=1; }
 437 #endif
 438                 else if (strcmp(*argv,"-starttls") == 0)
 439                         {
 440                         if (--argc < 1) goto bad;
 441                         ++argv;
 442                         if (strcmp(*argv,"smtp") == 0)
 443                                 starttls_proto = 1;
 444                         else if (strcmp(*argv,"pop3") == 0)
 445                                 starttls_proto = 2;
 446                         else
 447                                 goto bad;
 448                         }
 449 #ifndef OPENSSL_NO_ENGINE
 450                 else if (strcmp(*argv,"-engine") == 0)
 451                         {
 452                         if (--argc < 1) goto bad;
 453                         engine_id = *(++argv);
 454                         }
 455 #endif
 456                 else if (strcmp(*argv,"-rand") == 0)
 457                         {
 458                         if (--argc < 1) goto bad;
 459                         inrand= *(++argv);
 460                         }
 461                 else
 462                         {
 463                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 464                         badop=1;
 465                         break;
 466                         }
 467                 argc--;
 468                 argv++;
 469                 }
 470         if (badop)
 471                 {
 472 bad:
 473                 sc_usage();
 474                 goto end;
 475                 }
 476
 477         OpenSSL_add_ssl_algorithms();
 478         SSL_load_error_strings();
 479
 480 #ifndef OPENSSL_NO_ENGINE
 481         e = setup_engine(bio_err, engine_id, 1);
 482 #endif
 483         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
 484                 {
 485                 BIO_printf(bio_err, "Error getting password\n");
 486                 goto end;
 487                 }
 488
 489         if (key_file == NULL)
 490                 key_file = cert_file;
 491
 492
 493         if (key_file)
 494
 495                 {
 496
 497                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
 498                                "client certificate private key file");
 499                 if (!key)
 500                         {
 501                         ERR_print_errors(bio_err);
 502                         goto end;
 503                         }
 504
 505                 }
 506
 507         if (cert_file)
 508
 509                 {
 510                 cert = load_cert(bio_err,cert_file,cert_format,
 511                                 NULL, e, "client certificate file");
 512
 513                 if (!cert)
 514                         {
 515                         ERR_print_errors(bio_err);
 516                         goto end;
 517                         }
 518                 }
 519
 520         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 521                 && !RAND_status())
 522                 {
 523                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 524                 }
 525         if (inrand != NULL)
 526                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 527                         app_RAND_load_files(inrand));
 528
 529         if (bio_c_out == NULL)
 530                 {
 531                 if (c_quiet && !c_debug && !c_msg)
 532                         {
 533                         bio_c_out=BIO_new(BIO_s_null());
 534                         }
 535                 else
 536                         {
 537                         if (bio_c_out == NULL)
 538                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 539                         }
 540                 }
 541
 542         ctx=SSL_CTX_new(meth);
 543         if (ctx == NULL)
 544                 {
 545                 ERR_print_errors(bio_err);
 546                 goto end;
 547                 }
 548
 549         if (bugs)
 550                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 551         else
 552                 SSL_CTX_set_options(ctx,off);
 553
 554         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 555         if (cipher != NULL)
 556                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 557                 BIO_printf(bio_err,"error setting cipher list\n");
 558                 ERR_print_errors(bio_err);
 559                 goto end;
 560         }
 561 #if 0
 562         else
 563                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 564 #endif
 565
 566         SSL_CTX_set_verify(ctx,verify,verify_callback);
 567         if (!set_cert_key_stuff(ctx,cert,key))
 568                 goto end;
 569
 570         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 571                 (!SSL_CTX_set_default_verify_paths(ctx)))
 572                 {
 573                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 574                 ERR_print_errors(bio_err);
 575                 /* goto end; */
 576                 }
 577
 578         store = SSL_CTX_get_cert_store(ctx);
 579         X509_STORE_set_flags(store, vflags);
 580
 581         con=SSL_new(ctx);
 582 #ifndef OPENSSL_NO_KRB5
 583         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 584                 {
 585                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 586                 }
 587 #endif  /* OPENSSL_NO_KRB5  */
 588 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 589
 590 re_start:
 591
 592         if (init_client(&s,host,port) == 0)
 593                 {
 594                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 595                 SHUTDOWN(s);
 596                 goto end;
 597                 }
 598         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 599
 600 #ifdef FIONBIO
 601         if (c_nbio)
 602                 {
 603                 unsigned long l=1;
 604                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 605                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 606                         {
 607                         ERR_print_errors(bio_err);
 608                         goto end;
 609                         }
 610                 }
 611 #endif
 612         if (c_Pause & 0x01) con->debug=1;
 613         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 614
 615         if (nbio_test)
 616                 {
 617                 BIO *test;
 618
 619                 test=BIO_new(BIO_f_nbio_test());
 620                 sbio=BIO_push(test,sbio);
 621                 }
 622
 623         if (c_debug)
 624                 {
 625                 con->debug=1;
 626                 BIO_set_callback(sbio,bio_dump_callback);
 627                 BIO_set_callback_arg(sbio,bio_c_out);
 628                 }
 629         if (c_msg)
 630                 {
 631                 SSL_set_msg_callback(con, msg_cb);
 632                 SSL_set_msg_callback_arg(con, bio_c_out);
 633                 }
 634
 635         SSL_set_bio(con,sbio,sbio);
 636         SSL_set_connect_state(con);
 637
 638         /* ok, lets connect */
 639         width=SSL_get_fd(con)+1;
 640
 641         read_tty=1;
 642         write_tty=0;
 643         tty_on=0;
 644         read_ssl=1;
 645         write_ssl=1;
 646
 647         cbuf_len=0;
 648         cbuf_off=0;
 649         sbuf_len=0;
 650         sbuf_off=0;
 651
 652         /* This is an ugly hack that does a lot of assumptions */
 653         if (starttls_proto == 1)
 654                 {
 655                 BIO_read(sbio,mbuf,BUFSIZZ);
 656                 BIO_printf(sbio,"STARTTLS\r\n");
 657                 BIO_read(sbio,sbuf,BUFSIZZ);
 658                 }
 659         if (starttls_proto == 2)
 660                 {
 661                 BIO_read(sbio,mbuf,BUFSIZZ);
 662                 BIO_printf(sbio,"STLS\r\n");
 663                 BIO_read(sbio,sbuf,BUFSIZZ);
 664                 }
 665
 666         for (;;)
 667                 {
 668                 FD_ZERO(&readfds);
 669                 FD_ZERO(&writefds);
 670
 671                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
 672                         {
 673                         in_init=1;
 674                         tty_on=0;
 675                         }
 676                 else
 677                         {
 678                         tty_on=1;
 679                         if (in_init)
 680                                 {
 681                                 in_init=0;
 682                                 print_stuff(bio_c_out,con,full_log);
 683                                 if (full_log > 0) full_log--;
 684
 685                                 if (starttls_proto)
 686                                         {
 687                                         BIO_printf(bio_err,"%s",mbuf);
 688                                         /* We don't need to know any more */
 689                                         starttls_proto = 0;
 690                                         }
 691
 692                                 if (reconnect)
 693                                         {
 694                                         reconnect--;
 695                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
 696                                         SSL_shutdown(con);
 697                                         SSL_set_connect_state(con);
 698                                         SHUTDOWN(SSL_get_fd(con));
 699                                         goto re_start;
 700                                         }
 701                                 }
 702                         }
 703
 704                 ssl_pending = read_ssl && SSL_pending(con);
 705
 706                 if (!ssl_pending)
 707                         {
 708 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)
 709                         if (tty_on)
 710                                 {
 711                                 if (read_tty)  FD_SET(fileno(stdin),&readfds);
 712                                 if (write_tty) FD_SET(fileno(stdout),&writefds);
 713                                 }
 714                         if (read_ssl)
 715                                 FD_SET(SSL_get_fd(con),&readfds);
 716                         if (write_ssl)
 717                                 FD_SET(SSL_get_fd(con),&writefds);
 718 #else
 719                         if(!tty_on || !write_tty) {
 720                                 if (read_ssl)
 721                                         FD_SET(SSL_get_fd(con),&readfds);
 722                                 if (write_ssl)
 723                                         FD_SET(SSL_get_fd(con),&writefds);
 724                         }
 725 #endif
 726 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
 727                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
 728
 729                         /* Note: under VMS with SOCKETSHR the second parameter
 730                          * is currently of type (int *) whereas under other
 731                          * systems it is (void *) if you don't have a cast it
 732                          * will choke the compiler: if you do have a cast then
 733                          * you can either go for (int *) or (void *).
 734                          */
 735 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
 736                         /* Under Windows/DOS we make the assumption that we can
 737                          * always write to the tty: therefore if we need to
 738                          * write to the tty we just fall through. Otherwise
 739                          * we timeout the select every second and see if there
 740                          * are any keypresses. Note: this is a hack, in a proper
 741                          * Windows application we wouldn't do this.
 742                          */
 743                         i=0;
 744                         if(!write_tty) {
 745                                 if(read_tty) {
 746                                         tv.tv_sec = 1;
 747                                         tv.tv_usec = 0;
 748                                         i=select(width,(void *)&readfds,(void *)&writefds,
 749                                                  NULL,&tv);
 750 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
 751                                         if(!i && (!_kbhit() || !read_tty) ) continue;
 752 #else
 753                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
 754 #endif
 755                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
 756                                          NULL,NULL);
 757                         }
 758 #elif defined(OPENSSL_SYS_NETWARE)
 759                         if(!write_tty) {
 760                                 if(read_tty) {
 761                                         tv.tv_sec = 1;
 762                                         tv.tv_usec = 0;
 763                                         i=select(width,(void *)&readfds,(void *)&writefds,
 764                                                 NULL,&tv);
 765                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
 766                                         NULL,NULL);
 767                         }
 768 #else
 769                         i=select(width,(void *)&readfds,(void *)&writefds,
 770                                  NULL,NULL);
 771 #endif
 772                         if ( i < 0)
 773                                 {
 774                                 BIO_printf(bio_err,"bad select %d\n",
 775                                 get_last_socket_error());
 776                                 goto shut;
 777                                 /* goto end; */
 778                                 }
 779                         }
 780
 781                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
 782                         {
 783                         k=SSL_write(con,&(cbuf[cbuf_off]),
 784                                 (unsigned int)cbuf_len);
 785                         switch (SSL_get_error(con,k))
 786                                 {
 787                         case SSL_ERROR_NONE:
 788                                 cbuf_off+=k;
 789                                 cbuf_len-=k;
 790                                 if (k <= 0) goto end;
 791                                 /* we have done a  write(con,NULL,0); */
 792                                 if (cbuf_len <= 0)
 793                                         {
 794                                         read_tty=1;
 795                                         write_ssl=0;
 796                                         }
 797                                 else /* if (cbuf_len > 0) */
 798                                         {
 799                                         read_tty=0;
 800                                         write_ssl=1;
 801                                         }
 802                                 break;
 803                         case SSL_ERROR_WANT_WRITE:
 804                                 BIO_printf(bio_c_out,"write W BLOCK\n");
 805                                 write_ssl=1;
 806                                 read_tty=0;
 807                                 break;
 808                         case SSL_ERROR_WANT_READ:
 809                                 BIO_printf(bio_c_out,"write R BLOCK\n");
 810                                 write_tty=0;
 811                                 read_ssl=1;
 812                                 write_ssl=0;
 813                                 break;
 814                         case SSL_ERROR_WANT_X509_LOOKUP:
 815                                 BIO_printf(bio_c_out,"write X BLOCK\n");
 816                                 break;
 817                         case SSL_ERROR_ZERO_RETURN:
 818                                 if (cbuf_len != 0)
 819                                         {
 820                                         BIO_printf(bio_c_out,"shutdown\n");
 821                                         goto shut;
 822                                         }
 823                                 else
 824                                         {
 825                                         read_tty=1;
 826                                         write_ssl=0;
 827                                         break;
 828                                         }
 829
 830                         case SSL_ERROR_SYSCALL:
 831                                 if ((k != 0) || (cbuf_len != 0))
 832                                         {
 833                                         BIO_printf(bio_err,"write:errno=%d\n",
 834                                                 get_last_socket_error());
 835                                         goto shut;
 836                                         }
 837                                 else
 838                                         {
 839                                         read_tty=1;
 840                                         write_ssl=0;
 841                                         }
 842                                 break;
 843                         case SSL_ERROR_SSL:
 844                                 ERR_print_errors(bio_err);
 845                                 goto shut;
 846                                 }
 847                         }
 848 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
 849                 /* Assume Windows/DOS can always write */
 850                 else if (!ssl_pending && write_tty)
 851 #else
 852                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
 853 #endif
 854                         {
 855 #ifdef CHARSET_EBCDIC
 856                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
 857 #endif
 858                         i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
 859
 860                         if (i <= 0)
 861                                 {
 862                                 BIO_printf(bio_c_out,"DONE\n");
 863                                 goto shut;
 864                                 /* goto end; */
 865                                 }
 866
 867                         sbuf_len-=i;;
 868                         sbuf_off+=i;
 869                         if (sbuf_len <= 0)
 870                                 {
 871                                 read_ssl=1;
 872                                 write_tty=0;
 873                                 }
 874                         }
 875                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
 876                         {
 877 #ifdef RENEG
 878 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
 879 #endif
 880 #if 1
 881                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
 882 #else
 883 /* Demo for pending and peek :-) */
 884                         k=SSL_read(con,sbuf,16);
 885 { char zbuf[10240];
 886 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
 887 }
 888 #endif
 889
 890                         switch (SSL_get_error(con,k))
 891                                 {
 892                         case SSL_ERROR_NONE:
 893                                 if (k <= 0)
 894                                         goto end;
 895                                 sbuf_off=0;
 896                                 sbuf_len=k;
 897
 898                                 read_ssl=0;
 899                                 write_tty=1;
 900                                 break;
 901                         case SSL_ERROR_WANT_WRITE:
 902                                 BIO_printf(bio_c_out,"read W BLOCK\n");
 903                                 write_ssl=1;
 904                                 read_tty=0;
 905                                 break;
 906                         case SSL_ERROR_WANT_READ:
 907                                 BIO_printf(bio_c_out,"read R BLOCK\n");
 908                                 write_tty=0;
 909                                 read_ssl=1;
 910                                 if ((read_tty == 0) && (write_ssl == 0))
 911                                         write_ssl=1;
 912                                 break;
 913                         case SSL_ERROR_WANT_X509_LOOKUP:
 914                                 BIO_printf(bio_c_out,"read X BLOCK\n");
 915                                 break;
 916                         case SSL_ERROR_SYSCALL:
 917                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
 918                                 goto shut;
 919                         case SSL_ERROR_ZERO_RETURN:
 920                                 BIO_printf(bio_c_out,"closed\n");
 921                                 goto shut;
 922                         case SSL_ERROR_SSL:
 923                                 ERR_print_errors(bio_err);
 924                                 goto shut;
 925                                 /* break; */
 926                                 }
 927                         }
 928
 929 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
 930 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
 931                 else if (_kbhit())
 932 #else
 933                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
 934 #endif
 935 #elif defined (OPENSSL_SYS_NETWARE)
 936         else if (_kbhit())
 937 #else
 938                 else if (FD_ISSET(fileno(stdin),&readfds))
 939 #endif
 940                         {
 941                         if (crlf)
 942                                 {
 943                                 int j, lf_num;
 944
 945                                 i=read(fileno(stdin),cbuf,BUFSIZZ/2);
 946                                 lf_num = 0;
 947                                 /* both loops are skipped when i <= 0 */
 948                                 for (j = 0; j < i; j++)
 949                                         if (cbuf[j] == '\n')
 950                                                 lf_num++;
 951                                 for (j = i-1; j >= 0; j--)
 952                                         {
 953                                         cbuf[j+lf_num] = cbuf[j];
 954                                         if (cbuf[j] == '\n')
 955                                                 {
 956                                                 lf_num--;
 957                                                 i++;
 958                                                 cbuf[j+lf_num] = '\r';
 959                                                 }
 960                                         }
 961                                 assert(lf_num == 0);
 962                                 }
 963                         else
 964                                 i=read(fileno(stdin),cbuf,BUFSIZZ);
 965
 966                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
 967                                 {
 968                                 BIO_printf(bio_err,"DONE\n");
 969                                 goto shut;
 970                                 }
 971
 972                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
 973                                 {
 974                                 BIO_printf(bio_err,"RENEGOTIATING\n");
 975                                 SSL_renegotiate(con);
 976                                 cbuf_len=0;
 977                                 }
 978                         else
 979                                 {
 980                                 cbuf_len=i;
 981                                 cbuf_off=0;
 982 #ifdef CHARSET_EBCDIC
 983                                 ebcdic2ascii(cbuf, cbuf, i);
 984 #endif
 985                                 }
 986
 987                         write_ssl=1;
 988                         read_tty=0;
 989                         }
 990                 }
 991 shut:
 992         SSL_shutdown(con);
 993         SHUTDOWN(SSL_get_fd(con));
 994         ret=0;
 995 end:
 996         if(prexit) print_stuff(bio_c_out,con,1);
 997         if (con != NULL) SSL_free(con);
 998         if (con2 != NULL) SSL_free(con2);
 999         if (ctx != NULL) SSL_CTX_free(ctx);
1000         if (cert)
1001                 X509_free(cert);
1002         if (key)
1003                 EVP_PKEY_free(key);
1004         if (pass)
1005                 OPENSSL_free(pass);
1006         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1007         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1008         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1009         if (bio_c_out != NULL)
1010                 {
1011                 BIO_free(bio_c_out);
1012                 bio_c_out=NULL;
1013                 }
1014         apps_shutdown();
1015         OPENSSL_EXIT(ret);
1016         }
1017
1018
1019 static void print_stuff(BIO *bio, SSL *s, int full)
1020         {
1021         X509 *peer=NULL;
1022         char *p;
1023         static const char *space="                ";
1024         char buf[BUFSIZ];
1025         STACK_OF(X509) *sk;
1026         STACK_OF(X509_NAME) *sk2;
1027         SSL_CIPHER *c;
1028         X509_NAME *xn;
1029         int j,i;
1030         const COMP_METHOD *comp, *expansion;
1031
1032         if (full)
1033                 {
1034                 int got_a_chain = 0;
1035
1036                 sk=SSL_get_peer_cert_chain(s);
1037                 if (sk != NULL)
1038                         {
1039                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1040
1041                         BIO_printf(bio,"---\nCertificate chain\n");
1042                         for (i=0; i<sk_X509_num(sk); i++)
1043                                 {
1044                                 X509_NAME_oneline(X509_get_subject_name(
1045                                         sk_X509_value(sk,i)),buf,sizeof buf);
1046                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1047                                 X509_NAME_oneline(X509_get_issuer_name(
1048                                         sk_X509_value(sk,i)),buf,sizeof buf);
1049                                 BIO_printf(bio,"   i:%s\n",buf);
1050                                 if (c_showcerts)
1051                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1052                                 }
1053                         }
1054
1055                 BIO_printf(bio,"---\n");
1056                 peer=SSL_get_peer_certificate(s);
1057                 if (peer != NULL)
1058                         {
1059                         BIO_printf(bio,"Server certificate\n");
1060                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1061                                 PEM_write_bio_X509(bio,peer);
1062                         X509_NAME_oneline(X509_get_subject_name(peer),
1063                                 buf,sizeof buf);
1064                         BIO_printf(bio,"subject=%s\n",buf);
1065                         X509_NAME_oneline(X509_get_issuer_name(peer),
1066                                 buf,sizeof buf);
1067                         BIO_printf(bio,"issuer=%s\n",buf);
1068                         }
1069                 else
1070                         BIO_printf(bio,"no peer certificate available\n");
1071
1072                 sk2=SSL_get_client_CA_list(s);
1073                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1074                         {
1075                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1076                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1077                                 {
1078                                 xn=sk_X509_NAME_value(sk2,i);
1079                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1080                                 BIO_write(bio,buf,strlen(buf));
1081                                 BIO_write(bio,"\n",1);
1082                                 }
1083                         }
1084                 else
1085                         {
1086                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1087                         }
1088                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1089                 if (p != NULL)
1090                         {
1091                         /* This works only for SSL 2.  In later protocol
1092                          * versions, the client does not know what other
1093                          * ciphers (in addition to the one to be used
1094                          * in the current connection) the server supports. */
1095
1096                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1097                         j=i=0;
1098                         while (*p)
1099                                 {
1100                                 if (*p == ':')
1101                                         {
1102                                         BIO_write(bio,space,15-j%25);
1103                                         i++;
1104                                         j=0;
1105                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1106                                         }
1107                                 else
1108                                         {
1109                                         BIO_write(bio,p,1);
1110                                         j++;
1111                                         }
1112                                 p++;
1113                                 }
1114                         BIO_write(bio,"\n",1);
1115                         }
1116
1117                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1118                         BIO_number_read(SSL_get_rbio(s)),
1119                         BIO_number_written(SSL_get_wbio(s)));
1120                 }
1121         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1122         c=SSL_get_current_cipher(s);
1123         BIO_printf(bio,"%s, Cipher is %s\n",
1124                 SSL_CIPHER_get_version(c),
1125                 SSL_CIPHER_get_name(c));
1126         if (peer != NULL) {
1127                 EVP_PKEY *pktmp;
1128                 pktmp = X509_get_pubkey(peer);
1129                 BIO_printf(bio,"Server public key is %d bit\n",
1130                                                          EVP_PKEY_bits(pktmp));
1131                 EVP_PKEY_free(pktmp);
1132         }
1133         comp=SSL_get_current_compression(s);
1134         expansion=SSL_get_current_expansion(s);
1135         BIO_printf(bio,"Compression: %s\n",
1136                 comp ? SSL_COMP_get_name(comp) : "NONE");
1137         BIO_printf(bio,"Expansion: %s\n",
1138                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1139         SSL_SESSION_print(bio,SSL_get_session(s));
1140         BIO_printf(bio,"---\n");
1141         if (peer != NULL)
1142                 X509_free(peer);
1143         /* flush, or debugging output gets mixed with http response */
1144         BIO_flush(bio);
1145         }
1146