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         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 204         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 205         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 206 #ifdef FIONBIO
 207         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 208 #endif
 209         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 210         BIO_printf(bio_err," -quiet        - no s_client output\n");
 211         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 212         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 213         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 214         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 215         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 216         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 217         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 218         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 219         BIO_printf(bio_err,"                 command to see what is available\n");
 220         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 221         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 222         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 223         BIO_printf(bio_err,"                 only \"smtp\" and \"pop3\" are supported.\n");
 224 #ifndef OPENSSL_NO_ENGINE
 225         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 226 #endif
 227         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 228
 229         }
 230
 231 int MAIN(int, char **);
 232
 233 int MAIN(int argc, char **argv)
 234         {
 235         int off=0;
 236         SSL *con=NULL,*con2=NULL;
 237         X509_STORE *store = NULL;
 238         int s,k,width,state=0;
 239         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 240         int cbuf_len,cbuf_off;
 241         int sbuf_len,sbuf_off;
 242         fd_set readfds,writefds;
 243         short port=PORT;
 244         int full_log=1;
 245         char *host=SSL_HOST_NAME;
 246         char *cert_file=NULL,*key_file=NULL;
 247         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 248         char *passarg = NULL, *pass = NULL;
 249         X509 *cert = NULL;
 250         EVP_PKEY *key = NULL;
 251         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 252         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 253         int crlf=0;
 254         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 255         SSL_CTX *ctx=NULL;
 256         int ret=1,in_init=1,i,nbio_test=0;
 257         int starttls_proto = 0;
 258         int prexit = 0, vflags = 0;
 259         SSL_METHOD *meth=NULL;
 260         BIO *sbio;
 261         char *inrand=NULL;
 262 #ifndef OPENSSL_NO_ENGINE
 263         char *engine_id=NULL;
 264         ENGINE *e=NULL;
 265 #endif
 266 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
 267         struct timeval tv;
 268 #endif
 269
 270 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 271         meth=SSLv23_client_method();
 272 #elif !defined(OPENSSL_NO_SSL3)
 273         meth=SSLv3_client_method();
 274 #elif !defined(OPENSSL_NO_SSL2)
 275         meth=SSLv2_client_method();
 276 #endif
 277
 278         apps_startup();
 279         c_Pause=0;
 280         c_quiet=0;
 281         c_ign_eof=0;
 282         c_debug=0;
 283         c_msg=0;
 284         c_showcerts=0;
 285
 286         if (bio_err == NULL)
 287                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 288
 289         if (!load_config(bio_err, NULL))
 290                 goto end;
 291
 292         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 293                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 294                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 295                 {
 296                 BIO_printf(bio_err,"out of memory\n");
 297                 goto end;
 298                 }
 299
 300         verify_depth=0;
 301         verify_error=X509_V_OK;
 302 #ifdef FIONBIO
 303         c_nbio=0;
 304 #endif
 305
 306         argc--;
 307         argv++;
 308         while (argc >= 1)
 309                 {
 310                 if      (strcmp(*argv,"-host") == 0)
 311                         {
 312                         if (--argc < 1) goto bad;
 313                         host= *(++argv);
 314                         }
 315                 else if (strcmp(*argv,"-port") == 0)
 316                         {
 317                         if (--argc < 1) goto bad;
 318                         port=atoi(*(++argv));
 319                         if (port == 0) goto bad;
 320                         }
 321                 else if (strcmp(*argv,"-connect") == 0)
 322                         {
 323                         if (--argc < 1) goto bad;
 324                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 325                                 goto bad;
 326                         }
 327                 else if (strcmp(*argv,"-verify") == 0)
 328                         {
 329                         verify=SSL_VERIFY_PEER;
 330                         if (--argc < 1) goto bad;
 331                         verify_depth=atoi(*(++argv));
 332                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 333                         }
 334                 else if (strcmp(*argv,"-cert") == 0)
 335                         {
 336                         if (--argc < 1) goto bad;
 337                         cert_file= *(++argv);
 338                         }
 339                 else if (strcmp(*argv,"-certform") == 0)
 340                         {
 341                         if (--argc < 1) goto bad;
 342                         cert_format = str2fmt(*(++argv));
 343                         }
 344                 else if (strcmp(*argv,"-crl_check") == 0)
 345                         vflags |= X509_V_FLAG_CRL_CHECK;
 346                 else if (strcmp(*argv,"-crl_check_all") == 0)
 347                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 348                 else if (strcmp(*argv,"-prexit") == 0)
 349                         prexit=1;
 350                 else if (strcmp(*argv,"-crlf") == 0)
 351                         crlf=1;
 352                 else if (strcmp(*argv,"-quiet") == 0)
 353                         {
 354                         c_quiet=1;
 355                         c_ign_eof=1;
 356                         }
 357                 else if (strcmp(*argv,"-ign_eof") == 0)
 358                         c_ign_eof=1;
 359                 else if (strcmp(*argv,"-pause") == 0)
 360                         c_Pause=1;
 361                 else if (strcmp(*argv,"-debug") == 0)
 362                         c_debug=1;
 363                 else if (strcmp(*argv,"-msg") == 0)
 364                         c_msg=1;
 365                 else if (strcmp(*argv,"-showcerts") == 0)
 366                         c_showcerts=1;
 367                 else if (strcmp(*argv,"-nbio_test") == 0)
 368                         nbio_test=1;
 369                 else if (strcmp(*argv,"-state") == 0)
 370                         state=1;
 371 #ifndef OPENSSL_NO_SSL2
 372                 else if (strcmp(*argv,"-ssl2") == 0)
 373                         meth=SSLv2_client_method();
 374 #endif
 375 #ifndef OPENSSL_NO_SSL3
 376                 else if (strcmp(*argv,"-ssl3") == 0)
 377                         meth=SSLv3_client_method();
 378 #endif
 379 #ifndef OPENSSL_NO_TLS1
 380                 else if (strcmp(*argv,"-tls1") == 0)
 381                         meth=TLSv1_client_method();
 382 #endif
 383                 else if (strcmp(*argv,"-bugs") == 0)
 384                         bugs=1;
 385                 else if (strcmp(*argv,"-keyform") == 0)
 386                         {
 387                         if (--argc < 1) goto bad;
 388                         key_format = str2fmt(*(++argv));
 389                         }
 390                 else if (strcmp(*argv,"-pass") == 0)
 391                         {
 392                         if (--argc < 1) goto bad;
 393                         passarg = *(++argv);
 394                         }
 395                 else if (strcmp(*argv,"-key") == 0)
 396                         {
 397                         if (--argc < 1) goto bad;
 398                         key_file= *(++argv);
 399                         }
 400                 else if (strcmp(*argv,"-reconnect") == 0)
 401                         {
 402                         reconnect=5;
 403                         }
 404                 else if (strcmp(*argv,"-CApath") == 0)
 405                         {
 406                         if (--argc < 1) goto bad;
 407                         CApath= *(++argv);
 408                         }
 409                 else if (strcmp(*argv,"-CAfile") == 0)
 410                         {
 411                         if (--argc < 1) goto bad;
 412                         CAfile= *(++argv);
 413                         }
 414                 else if (strcmp(*argv,"-no_tls1") == 0)
 415                         off|=SSL_OP_NO_TLSv1;
 416                 else if (strcmp(*argv,"-no_ssl3") == 0)
 417                         off|=SSL_OP_NO_SSLv3;
 418                 else if (strcmp(*argv,"-no_ssl2") == 0)
 419                         off|=SSL_OP_NO_SSLv2;
 420                 else if (strcmp(*argv,"-serverpref") == 0)
 421                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 422                 else if (strcmp(*argv,"-cipher") == 0)
 423                         {
 424                         if (--argc < 1) goto bad;
 425                         cipher= *(++argv);
 426                         }
 427 #ifdef FIONBIO
 428                 else if (strcmp(*argv,"-nbio") == 0)
 429                         { c_nbio=1; }
 430 #endif
 431                 else if (strcmp(*argv,"-starttls") == 0)
 432                         {
 433                         if (--argc < 1) goto bad;
 434                         ++argv;
 435                         if (strcmp(*argv,"smtp") == 0)
 436                                 starttls_proto = 1;
 437                         else if (strcmp(*argv,"pop3") == 0)
 438                                 starttls_proto = 2;
 439                         else
 440                                 goto bad;
 441                         }
 442 #ifndef OPENSSL_NO_ENGINE
 443                 else if (strcmp(*argv,"-engine") == 0)
 444                         {
 445                         if (--argc < 1) goto bad;
 446                         engine_id = *(++argv);
 447                         }
 448 #endif
 449                 else if (strcmp(*argv,"-rand") == 0)
 450                         {
 451                         if (--argc < 1) goto bad;
 452                         inrand= *(++argv);
 453                         }
 454                 else
 455                         {
 456                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 457                         badop=1;
 458                         break;
 459                         }
 460                 argc--;
 461                 argv++;
 462                 }
 463         if (badop)
 464                 {
 465 bad:
 466                 sc_usage();
 467                 goto end;
 468                 }
 469
 470         OpenSSL_add_ssl_algorithms();
 471         SSL_load_error_strings();
 472
 473 #ifndef OPENSSL_NO_ENGINE
 474         e = setup_engine(bio_err, engine_id, 1);
 475 #endif
 476         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
 477                 {
 478                 BIO_printf(bio_err, "Error getting password\n");
 479                 goto end;
 480                 }
 481
 482         if (key_file == NULL)
 483                 key_file = cert_file;
 484
 485         key = load_key(bio_err, key_file, key_format, 0, pass, e,
 486                        "client certificate private key file");
 487         if (!key)
 488                 {
 489                 ERR_print_errors(bio_err);
 490                 goto end;
 491                 }
 492
 493         cert = load_cert(bio_err,cert_file,cert_format,
 494                         NULL, e, "client certificate file");
 495
 496         if (!cert)
 497                 {
 498                 ERR_print_errors(bio_err);
 499                 goto end;
 500                 }
 501
 502         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 503                 && !RAND_status())
 504                 {
 505                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 506                 }
 507         if (inrand != NULL)
 508                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 509                         app_RAND_load_files(inrand));
 510
 511         if (bio_c_out == NULL)
 512                 {
 513                 if (c_quiet && !c_debug && !c_msg)
 514                         {
 515                         bio_c_out=BIO_new(BIO_s_null());
 516                         }
 517                 else
 518                         {
 519                         if (bio_c_out == NULL)
 520                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 521                         }
 522                 }
 523
 524         ctx=SSL_CTX_new(meth);
 525         if (ctx == NULL)
 526                 {
 527                 ERR_print_errors(bio_err);
 528                 goto end;
 529                 }
 530
 531         if (bugs)
 532                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 533         else
 534                 SSL_CTX_set_options(ctx,off);
 535
 536         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 537         if (cipher != NULL)
 538                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 539                 BIO_printf(bio_err,"error setting cipher list\n");
 540                 ERR_print_errors(bio_err);
 541                 goto end;
 542         }
 543 #if 0
 544         else
 545                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 546 #endif
 547
 548         SSL_CTX_set_verify(ctx,verify,verify_callback);
 549         if (!set_cert_key_stuff(ctx,cert,key))
 550                 goto end;
 551
 552         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 553                 (!SSL_CTX_set_default_verify_paths(ctx)))
 554                 {
 555                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 556                 ERR_print_errors(bio_err);
 557                 /* goto end; */
 558                 }
 559
 560         store = SSL_CTX_get_cert_store(ctx);
 561         X509_STORE_set_flags(store, vflags);
 562
 563         con=SSL_new(ctx);
 564 #ifndef OPENSSL_NO_KRB5
 565         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 566                 {
 567                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 568                 }
 569 #endif  /* OPENSSL_NO_KRB5  */
 570 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 571
 572 re_start:
 573
 574         if (init_client(&s,host,port) == 0)
 575                 {
 576                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 577                 SHUTDOWN(s);
 578                 goto end;
 579                 }
 580         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 581
 582 #ifdef FIONBIO
 583         if (c_nbio)
 584                 {
 585                 unsigned long l=1;
 586                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 587                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 588                         {
 589                         ERR_print_errors(bio_err);
 590                         goto end;
 591                         }
 592                 }
 593 #endif
 594         if (c_Pause & 0x01) con->debug=1;
 595         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 596
 597         if (nbio_test)
 598                 {
 599                 BIO *test;
 600
 601                 test=BIO_new(BIO_f_nbio_test());
 602                 sbio=BIO_push(test,sbio);
 603                 }
 604
 605         if (c_debug)
 606                 {
 607                 con->debug=1;
 608                 BIO_set_callback(sbio,bio_dump_callback);
 609                 BIO_set_callback_arg(sbio,bio_c_out);
 610                 }
 611         if (c_msg)
 612                 {
 613                 SSL_set_msg_callback(con, msg_cb);
 614                 SSL_set_msg_callback_arg(con, bio_c_out);
 615                 }
 616
 617         SSL_set_bio(con,sbio,sbio);
 618         SSL_set_connect_state(con);
 619
 620         /* ok, lets connect */
 621         width=SSL_get_fd(con)+1;
 622
 623         read_tty=1;
 624         write_tty=0;
 625         tty_on=0;
 626         read_ssl=1;
 627         write_ssl=1;
 628
 629         cbuf_len=0;
 630         cbuf_off=0;
 631         sbuf_len=0;
 632         sbuf_off=0;
 633
 634         /* This is an ugly hack that does a lot of assumptions */
 635         if (starttls_proto == 1)
 636                 {
 637                 BIO_read(sbio,mbuf,BUFSIZZ);
 638                 BIO_printf(sbio,"STARTTLS\r\n");
 639                 BIO_read(sbio,sbuf,BUFSIZZ);
 640                 }
 641         if (starttls_proto == 2)
 642                 {
 643                 BIO_read(sbio,mbuf,BUFSIZZ);
 644                 BIO_printf(sbio,"STLS\r\n");
 645                 BIO_read(sbio,sbuf,BUFSIZZ);
 646                 }
 647
 648         for (;;)
 649                 {
 650                 FD_ZERO(&readfds);
 651                 FD_ZERO(&writefds);
 652
 653                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
 654                         {
 655                         in_init=1;
 656                         tty_on=0;
 657                         }
 658                 else
 659                         {
 660                         tty_on=1;
 661                         if (in_init)
 662                                 {
 663                                 in_init=0;
 664                                 print_stuff(bio_c_out,con,full_log);
 665                                 if (full_log > 0) full_log--;
 666
 667                                 if (starttls_proto)
 668                                         {
 669                                         BIO_printf(bio_err,"%s",mbuf);
 670                                         /* We don't need to know any more */
 671                                         starttls_proto = 0;
 672                                         }
 673
 674                                 if (reconnect)
 675                                         {
 676                                         reconnect--;
 677                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
 678                                         SSL_shutdown(con);
 679                                         SSL_set_connect_state(con);
 680                                         SHUTDOWN(SSL_get_fd(con));
 681                                         goto re_start;
 682                                         }
 683                                 }
 684                         }
 685
 686                 ssl_pending = read_ssl && SSL_pending(con);
 687
 688                 if (!ssl_pending)
 689                         {
 690 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)
 691                         if (tty_on)
 692                                 {
 693                                 if (read_tty)  FD_SET(fileno(stdin),&readfds);
 694                                 if (write_tty) FD_SET(fileno(stdout),&writefds);
 695                                 }
 696                         if (read_ssl)
 697                                 FD_SET(SSL_get_fd(con),&readfds);
 698                         if (write_ssl)
 699                                 FD_SET(SSL_get_fd(con),&writefds);
 700 #else
 701                         if(!tty_on || !write_tty) {
 702                                 if (read_ssl)
 703                                         FD_SET(SSL_get_fd(con),&readfds);
 704                                 if (write_ssl)
 705                                         FD_SET(SSL_get_fd(con),&writefds);
 706                         }
 707 #endif
 708 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
 709                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
 710
 711                         /* Note: under VMS with SOCKETSHR the second parameter
 712                          * is currently of type (int *) whereas under other
 713                          * systems it is (void *) if you don't have a cast it
 714                          * will choke the compiler: if you do have a cast then
 715                          * you can either go for (int *) or (void *).
 716                          */
 717 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
 718                         /* Under Windows/DOS we make the assumption that we can
 719                          * always write to the tty: therefore if we need to
 720                          * write to the tty we just fall through. Otherwise
 721                          * we timeout the select every second and see if there
 722                          * are any keypresses. Note: this is a hack, in a proper
 723                          * Windows application we wouldn't do this.
 724                          */
 725                         i=0;
 726                         if(!write_tty) {
 727                                 if(read_tty) {
 728                                         tv.tv_sec = 1;
 729                                         tv.tv_usec = 0;
 730                                         i=select(width,(void *)&readfds,(void *)&writefds,
 731                                                  NULL,&tv);
 732 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
 733                                         if(!i && (!_kbhit() || !read_tty) ) continue;
 734 #else
 735                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
 736 #endif
 737                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
 738                                          NULL,NULL);
 739                         }
 740 #elif defined(OPENSSL_SYS_NETWARE)
 741                         if(!write_tty) {
 742                                 if(read_tty) {
 743                                         tv.tv_sec = 1;
 744                                         tv.tv_usec = 0;
 745                                         i=select(width,(void *)&readfds,(void *)&writefds,
 746                                                 NULL,&tv);
 747                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
 748                                         NULL,NULL);
 749                         }
 750 #else
 751                         i=select(width,(void *)&readfds,(void *)&writefds,
 752                                  NULL,NULL);
 753 #endif
 754                         if ( i < 0)
 755                                 {
 756                                 BIO_printf(bio_err,"bad select %d\n",
 757                                 get_last_socket_error());
 758                                 goto shut;
 759                                 /* goto end; */
 760                                 }
 761                         }
 762
 763                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
 764                         {
 765                         k=SSL_write(con,&(cbuf[cbuf_off]),
 766                                 (unsigned int)cbuf_len);
 767                         switch (SSL_get_error(con,k))
 768                                 {
 769                         case SSL_ERROR_NONE:
 770                                 cbuf_off+=k;
 771                                 cbuf_len-=k;
 772                                 if (k <= 0) goto end;
 773                                 /* we have done a  write(con,NULL,0); */
 774                                 if (cbuf_len <= 0)
 775                                         {
 776                                         read_tty=1;
 777                                         write_ssl=0;
 778                                         }
 779                                 else /* if (cbuf_len > 0) */
 780                                         {
 781                                         read_tty=0;
 782                                         write_ssl=1;
 783                                         }
 784                                 break;
 785                         case SSL_ERROR_WANT_WRITE:
 786                                 BIO_printf(bio_c_out,"write W BLOCK\n");
 787                                 write_ssl=1;
 788                                 read_tty=0;
 789                                 break;
 790                         case SSL_ERROR_WANT_READ:
 791                                 BIO_printf(bio_c_out,"write R BLOCK\n");
 792                                 write_tty=0;
 793                                 read_ssl=1;
 794                                 write_ssl=0;
 795                                 break;
 796                         case SSL_ERROR_WANT_X509_LOOKUP:
 797                                 BIO_printf(bio_c_out,"write X BLOCK\n");
 798                                 break;
 799                         case SSL_ERROR_ZERO_RETURN:
 800                                 if (cbuf_len != 0)
 801                                         {
 802                                         BIO_printf(bio_c_out,"shutdown\n");
 803                                         goto shut;
 804                                         }
 805                                 else
 806                                         {
 807                                         read_tty=1;
 808                                         write_ssl=0;
 809                                         break;
 810                                         }
 811
 812                         case SSL_ERROR_SYSCALL:
 813                                 if ((k != 0) || (cbuf_len != 0))
 814                                         {
 815                                         BIO_printf(bio_err,"write:errno=%d\n",
 816                                                 get_last_socket_error());
 817                                         goto shut;
 818                                         }
 819                                 else
 820                                         {
 821                                         read_tty=1;
 822                                         write_ssl=0;
 823                                         }
 824                                 break;
 825                         case SSL_ERROR_SSL:
 826                                 ERR_print_errors(bio_err);
 827                                 goto shut;
 828                                 }
 829                         }
 830 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
 831                 /* Assume Windows/DOS can always write */
 832                 else if (!ssl_pending && write_tty)
 833 #else
 834                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
 835 #endif
 836                         {
 837 #ifdef CHARSET_EBCDIC
 838                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
 839 #endif
 840                         i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
 841
 842                         if (i <= 0)
 843                                 {
 844                                 BIO_printf(bio_c_out,"DONE\n");
 845                                 goto shut;
 846                                 /* goto end; */
 847                                 }
 848
 849                         sbuf_len-=i;;
 850                         sbuf_off+=i;
 851                         if (sbuf_len <= 0)
 852                                 {
 853                                 read_ssl=1;
 854                                 write_tty=0;
 855                                 }
 856                         }
 857                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
 858                         {
 859 #ifdef RENEG
 860 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
 861 #endif
 862 #if 1
 863                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
 864 #else
 865 /* Demo for pending and peek :-) */
 866                         k=SSL_read(con,sbuf,16);
 867 { char zbuf[10240];
 868 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
 869 }
 870 #endif
 871
 872                         switch (SSL_get_error(con,k))
 873                                 {
 874                         case SSL_ERROR_NONE:
 875                                 if (k <= 0)
 876                                         goto end;
 877                                 sbuf_off=0;
 878                                 sbuf_len=k;
 879
 880                                 read_ssl=0;
 881                                 write_tty=1;
 882                                 break;
 883                         case SSL_ERROR_WANT_WRITE:
 884                                 BIO_printf(bio_c_out,"read W BLOCK\n");
 885                                 write_ssl=1;
 886                                 read_tty=0;
 887                                 break;
 888                         case SSL_ERROR_WANT_READ:
 889                                 BIO_printf(bio_c_out,"read R BLOCK\n");
 890                                 write_tty=0;
 891                                 read_ssl=1;
 892                                 if ((read_tty == 0) && (write_ssl == 0))
 893                                         write_ssl=1;
 894                                 break;
 895                         case SSL_ERROR_WANT_X509_LOOKUP:
 896                                 BIO_printf(bio_c_out,"read X BLOCK\n");
 897                                 break;
 898                         case SSL_ERROR_SYSCALL:
 899                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
 900                                 goto shut;
 901                         case SSL_ERROR_ZERO_RETURN:
 902                                 BIO_printf(bio_c_out,"closed\n");
 903                                 goto shut;
 904                         case SSL_ERROR_SSL:
 905                                 ERR_print_errors(bio_err);
 906                                 goto shut;
 907                                 /* break; */
 908                                 }
 909                         }
 910
 911 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
 912 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
 913                 else if (_kbhit())
 914 #else
 915                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
 916 #endif
 917 #elif defined (OPENSSL_SYS_NETWARE)
 918         else if (_kbhit())
 919 #else
 920                 else if (FD_ISSET(fileno(stdin),&readfds))
 921 #endif
 922                         {
 923                         if (crlf)
 924                                 {
 925                                 int j, lf_num;
 926
 927                                 i=read(fileno(stdin),cbuf,BUFSIZZ/2);
 928                                 lf_num = 0;
 929                                 /* both loops are skipped when i <= 0 */
 930                                 for (j = 0; j < i; j++)
 931                                         if (cbuf[j] == '\n')
 932                                                 lf_num++;
 933                                 for (j = i-1; j >= 0; j--)
 934                                         {
 935                                         cbuf[j+lf_num] = cbuf[j];
 936                                         if (cbuf[j] == '\n')
 937                                                 {
 938                                                 lf_num--;
 939                                                 i++;
 940                                                 cbuf[j+lf_num] = '\r';
 941                                                 }
 942                                         }
 943                                 assert(lf_num == 0);
 944                                 }
 945                         else
 946                                 i=read(fileno(stdin),cbuf,BUFSIZZ);
 947
 948                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
 949                                 {
 950                                 BIO_printf(bio_err,"DONE\n");
 951                                 goto shut;
 952                                 }
 953
 954                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
 955                                 {
 956                                 BIO_printf(bio_err,"RENEGOTIATING\n");
 957                                 SSL_renegotiate(con);
 958                                 cbuf_len=0;
 959                                 }
 960                         else
 961                                 {
 962                                 cbuf_len=i;
 963                                 cbuf_off=0;
 964 #ifdef CHARSET_EBCDIC
 965                                 ebcdic2ascii(cbuf, cbuf, i);
 966 #endif
 967                                 }
 968
 969                         write_ssl=1;
 970                         read_tty=0;
 971                         }
 972                 }
 973 shut:
 974         SSL_shutdown(con);
 975         SHUTDOWN(SSL_get_fd(con));
 976         ret=0;
 977 end:
 978         if(prexit) print_stuff(bio_c_out,con,1);
 979         if (con != NULL) SSL_free(con);
 980         if (con2 != NULL) SSL_free(con2);
 981         if (ctx != NULL) SSL_CTX_free(ctx);
 982         if (cert)
 983                 X509_free(cert);
 984         if (key)
 985                 EVP_PKEY_free(key);
 986         if (pass)
 987                 OPENSSL_free(pass);
 988         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
 989         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
 990         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
 991         if (bio_c_out != NULL)
 992                 {
 993                 BIO_free(bio_c_out);
 994                 bio_c_out=NULL;
 995                 }
 996         apps_shutdown();
 997         OPENSSL_EXIT(ret);
 998         }
 999
1000
1001 static void print_stuff(BIO *bio, SSL *s, int full)
1002         {
1003         X509 *peer=NULL;
1004         char *p;
1005         static char *space="                ";
1006         char buf[BUFSIZ];
1007         STACK_OF(X509) *sk;
1008         STACK_OF(X509_NAME) *sk2;
1009         SSL_CIPHER *c;
1010         X509_NAME *xn;
1011         int j,i;
1012         const COMP_METHOD *comp, *expansion;
1013
1014         if (full)
1015                 {
1016                 int got_a_chain = 0;
1017
1018                 sk=SSL_get_peer_cert_chain(s);
1019                 if (sk != NULL)
1020                         {
1021                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1022
1023                         BIO_printf(bio,"---\nCertificate chain\n");
1024                         for (i=0; i<sk_X509_num(sk); i++)
1025                                 {
1026                                 X509_NAME_oneline(X509_get_subject_name(
1027                                         sk_X509_value(sk,i)),buf,sizeof buf);
1028                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1029                                 X509_NAME_oneline(X509_get_issuer_name(
1030                                         sk_X509_value(sk,i)),buf,sizeof buf);
1031                                 BIO_printf(bio,"   i:%s\n",buf);
1032                                 if (c_showcerts)
1033                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1034                                 }
1035                         }
1036
1037                 BIO_printf(bio,"---\n");
1038                 peer=SSL_get_peer_certificate(s);
1039                 if (peer != NULL)
1040                         {
1041                         BIO_printf(bio,"Server certificate\n");
1042                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1043                                 PEM_write_bio_X509(bio,peer);
1044                         X509_NAME_oneline(X509_get_subject_name(peer),
1045                                 buf,sizeof buf);
1046                         BIO_printf(bio,"subject=%s\n",buf);
1047                         X509_NAME_oneline(X509_get_issuer_name(peer),
1048                                 buf,sizeof buf);
1049                         BIO_printf(bio,"issuer=%s\n",buf);
1050                         }
1051                 else
1052                         BIO_printf(bio,"no peer certificate available\n");
1053
1054                 sk2=SSL_get_client_CA_list(s);
1055                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1056                         {
1057                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1058                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1059                                 {
1060                                 xn=sk_X509_NAME_value(sk2,i);
1061                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1062                                 BIO_write(bio,buf,strlen(buf));
1063                                 BIO_write(bio,"\n",1);
1064                                 }
1065                         }
1066                 else
1067                         {
1068                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1069                         }
1070                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1071                 if (p != NULL)
1072                         {
1073                         /* This works only for SSL 2.  In later protocol
1074                          * versions, the client does not know what other
1075                          * ciphers (in addition to the one to be used
1076                          * in the current connection) the server supports. */
1077
1078                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1079                         j=i=0;
1080                         while (*p)
1081                                 {
1082                                 if (*p == ':')
1083                                         {
1084                                         BIO_write(bio,space,15-j%25);
1085                                         i++;
1086                                         j=0;
1087                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1088                                         }
1089                                 else
1090                                         {
1091                                         BIO_write(bio,p,1);
1092                                         j++;
1093                                         }
1094                                 p++;
1095                                 }
1096                         BIO_write(bio,"\n",1);
1097                         }
1098
1099                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1100                         BIO_number_read(SSL_get_rbio(s)),
1101                         BIO_number_written(SSL_get_wbio(s)));
1102                 }
1103         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1104         c=SSL_get_current_cipher(s);
1105         BIO_printf(bio,"%s, Cipher is %s\n",
1106                 SSL_CIPHER_get_version(c),
1107                 SSL_CIPHER_get_name(c));
1108         if (peer != NULL) {
1109                 EVP_PKEY *pktmp;
1110                 pktmp = X509_get_pubkey(peer);
1111                 BIO_printf(bio,"Server public key is %d bit\n",
1112                                                          EVP_PKEY_bits(pktmp));
1113                 EVP_PKEY_free(pktmp);
1114         }
1115         comp=SSL_get_current_compression(s);
1116         expansion=SSL_get_current_expansion(s);
1117         BIO_printf(bio,"Compression: %s\n",
1118                 comp ? SSL_COMP_get_name(comp) : "NONE");
1119         BIO_printf(bio,"Expansion: %s\n",
1120                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1121         SSL_SESSION_print(bio,SSL_get_session(s));
1122         BIO_printf(bio,"---\n");
1123         if (peer != NULL)
1124                 X509_free(peer);
1125         /* flush, or debugging output gets mixed with http response */
1126         BIO_flush(bio);
1127         }
1128