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
 486         if (key_file)
 487
 488                 {
 489
 490                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
 491                                "client certificate private key file");
 492                 if (!key)
 493                         {
 494                         ERR_print_errors(bio_err);
 495                         goto end;
 496                         }
 497
 498                 }
 499
 500         if (cert_file)
 501
 502                 {
 503                 cert = load_cert(bio_err,cert_file,cert_format,
 504                                 NULL, e, "client certificate file");
 505
 506                 if (!cert)
 507                         {
 508                         ERR_print_errors(bio_err);
 509                         goto end;
 510                         }
 511                 }
 512
 513         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 514                 && !RAND_status())
 515                 {
 516                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 517                 }
 518         if (inrand != NULL)
 519                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 520                         app_RAND_load_files(inrand));
 521
 522         if (bio_c_out == NULL)
 523                 {
 524                 if (c_quiet && !c_debug && !c_msg)
 525                         {
 526                         bio_c_out=BIO_new(BIO_s_null());
 527                         }
 528                 else
 529                         {
 530                         if (bio_c_out == NULL)
 531                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 532                         }
 533                 }
 534
 535         ctx=SSL_CTX_new(meth);
 536         if (ctx == NULL)
 537                 {
 538                 ERR_print_errors(bio_err);
 539                 goto end;
 540                 }
 541
 542         if (bugs)
 543                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 544         else
 545                 SSL_CTX_set_options(ctx,off);
 546
 547         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 548         if (cipher != NULL)
 549                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 550                 BIO_printf(bio_err,"error setting cipher list\n");
 551                 ERR_print_errors(bio_err);
 552                 goto end;
 553         }
 554 #if 0
 555         else
 556                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 557 #endif
 558
 559         SSL_CTX_set_verify(ctx,verify,verify_callback);
 560         if (!set_cert_key_stuff(ctx,cert,key))
 561                 goto end;
 562
 563         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 564                 (!SSL_CTX_set_default_verify_paths(ctx)))
 565                 {
 566                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 567                 ERR_print_errors(bio_err);
 568                 /* goto end; */
 569                 }
 570
 571         store = SSL_CTX_get_cert_store(ctx);
 572         X509_STORE_set_flags(store, vflags);
 573
 574         con=SSL_new(ctx);
 575 #ifndef OPENSSL_NO_KRB5
 576         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 577                 {
 578                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 579                 }
 580 #endif  /* OPENSSL_NO_KRB5  */
 581 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 582
 583 re_start:
 584
 585         if (init_client(&s,host,port) == 0)
 586                 {
 587                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 588                 SHUTDOWN(s);
 589                 goto end;
 590                 }
 591         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 592
 593 #ifdef FIONBIO
 594         if (c_nbio)
 595                 {
 596                 unsigned long l=1;
 597                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 598                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 599                         {
 600                         ERR_print_errors(bio_err);
 601                         goto end;
 602                         }
 603                 }
 604 #endif
 605         if (c_Pause & 0x01) con->debug=1;
 606         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 607
 608         if (nbio_test)
 609                 {
 610                 BIO *test;
 611
 612                 test=BIO_new(BIO_f_nbio_test());
 613                 sbio=BIO_push(test,sbio);
 614                 }
 615
 616         if (c_debug)
 617                 {
 618                 con->debug=1;
 619                 BIO_set_callback(sbio,bio_dump_callback);
 620                 BIO_set_callback_arg(sbio,bio_c_out);
 621                 }
 622         if (c_msg)
 623                 {
 624                 SSL_set_msg_callback(con, msg_cb);
 625                 SSL_set_msg_callback_arg(con, bio_c_out);
 626                 }
 627
 628         SSL_set_bio(con,sbio,sbio);
 629         SSL_set_connect_state(con);
 630
 631         /* ok, lets connect */
 632         width=SSL_get_fd(con)+1;
 633
 634         read_tty=1;
 635         write_tty=0;
 636         tty_on=0;
 637         read_ssl=1;
 638         write_ssl=1;
 639
 640         cbuf_len=0;
 641         cbuf_off=0;
 642         sbuf_len=0;
 643         sbuf_off=0;
 644
 645         /* This is an ugly hack that does a lot of assumptions */
 646         if (starttls_proto == 1)
 647                 {
 648                 BIO_read(sbio,mbuf,BUFSIZZ);
 649                 BIO_printf(sbio,"STARTTLS\r\n");
 650                 BIO_read(sbio,sbuf,BUFSIZZ);
 651                 }
 652         if (starttls_proto == 2)
 653                 {
 654                 BIO_read(sbio,mbuf,BUFSIZZ);
 655                 BIO_printf(sbio,"STLS\r\n");
 656                 BIO_read(sbio,sbuf,BUFSIZZ);
 657                 }
 658
 659         for (;;)
 660                 {
 661                 FD_ZERO(&readfds);
 662                 FD_ZERO(&writefds);
 663
 664                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
 665                         {
 666                         in_init=1;
 667                         tty_on=0;
 668                         }
 669                 else
 670                         {
 671                         tty_on=1;
 672                         if (in_init)
 673                                 {
 674                                 in_init=0;
 675                                 print_stuff(bio_c_out,con,full_log);
 676                                 if (full_log > 0) full_log--;
 677
 678                                 if (starttls_proto)
 679                                         {
 680                                         BIO_printf(bio_err,"%s",mbuf);
 681                                         /* We don't need to know any more */
 682                                         starttls_proto = 0;
 683                                         }
 684
 685                                 if (reconnect)
 686                                         {
 687                                         reconnect--;
 688                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
 689                                         SSL_shutdown(con);
 690                                         SSL_set_connect_state(con);
 691                                         SHUTDOWN(SSL_get_fd(con));
 692                                         goto re_start;
 693                                         }
 694                                 }
 695                         }
 696
 697                 ssl_pending = read_ssl && SSL_pending(con);
 698
 699                 if (!ssl_pending)
 700                         {
 701 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)
 702                         if (tty_on)
 703                                 {
 704                                 if (read_tty)  FD_SET(fileno(stdin),&readfds);
 705                                 if (write_tty) FD_SET(fileno(stdout),&writefds);
 706                                 }
 707                         if (read_ssl)
 708                                 FD_SET(SSL_get_fd(con),&readfds);
 709                         if (write_ssl)
 710                                 FD_SET(SSL_get_fd(con),&writefds);
 711 #else
 712                         if(!tty_on || !write_tty) {
 713                                 if (read_ssl)
 714                                         FD_SET(SSL_get_fd(con),&readfds);
 715                                 if (write_ssl)
 716                                         FD_SET(SSL_get_fd(con),&writefds);
 717                         }
 718 #endif
 719 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
 720                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
 721
 722                         /* Note: under VMS with SOCKETSHR the second parameter
 723                          * is currently of type (int *) whereas under other
 724                          * systems it is (void *) if you don't have a cast it
 725                          * will choke the compiler: if you do have a cast then
 726                          * you can either go for (int *) or (void *).
 727                          */
 728 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
 729                         /* Under Windows/DOS we make the assumption that we can
 730                          * always write to the tty: therefore if we need to
 731                          * write to the tty we just fall through. Otherwise
 732                          * we timeout the select every second and see if there
 733                          * are any keypresses. Note: this is a hack, in a proper
 734                          * Windows application we wouldn't do this.
 735                          */
 736                         i=0;
 737                         if(!write_tty) {
 738                                 if(read_tty) {
 739                                         tv.tv_sec = 1;
 740                                         tv.tv_usec = 0;
 741                                         i=select(width,(void *)&readfds,(void *)&writefds,
 742                                                  NULL,&tv);
 743 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
 744                                         if(!i && (!_kbhit() || !read_tty) ) continue;
 745 #else
 746                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
 747 #endif
 748                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
 749                                          NULL,NULL);
 750                         }
 751 #elif defined(OPENSSL_SYS_NETWARE)
 752                         if(!write_tty) {
 753                                 if(read_tty) {
 754                                         tv.tv_sec = 1;
 755                                         tv.tv_usec = 0;
 756                                         i=select(width,(void *)&readfds,(void *)&writefds,
 757                                                 NULL,&tv);
 758                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
 759                                         NULL,NULL);
 760                         }
 761 #else
 762                         i=select(width,(void *)&readfds,(void *)&writefds,
 763                                  NULL,NULL);
 764 #endif
 765                         if ( i < 0)
 766                                 {
 767                                 BIO_printf(bio_err,"bad select %d\n",
 768                                 get_last_socket_error());
 769                                 goto shut;
 770                                 /* goto end; */
 771                                 }
 772                         }
 773
 774                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
 775                         {
 776                         k=SSL_write(con,&(cbuf[cbuf_off]),
 777                                 (unsigned int)cbuf_len);
 778                         switch (SSL_get_error(con,k))
 779                                 {
 780                         case SSL_ERROR_NONE:
 781                                 cbuf_off+=k;
 782                                 cbuf_len-=k;
 783                                 if (k <= 0) goto end;
 784                                 /* we have done a  write(con,NULL,0); */
 785                                 if (cbuf_len <= 0)
 786                                         {
 787                                         read_tty=1;
 788                                         write_ssl=0;
 789                                         }
 790                                 else /* if (cbuf_len > 0) */
 791                                         {
 792                                         read_tty=0;
 793                                         write_ssl=1;
 794                                         }
 795                                 break;
 796                         case SSL_ERROR_WANT_WRITE:
 797                                 BIO_printf(bio_c_out,"write W BLOCK\n");
 798                                 write_ssl=1;
 799                                 read_tty=0;
 800                                 break;
 801                         case SSL_ERROR_WANT_READ:
 802                                 BIO_printf(bio_c_out,"write R BLOCK\n");
 803                                 write_tty=0;
 804                                 read_ssl=1;
 805                                 write_ssl=0;
 806                                 break;
 807                         case SSL_ERROR_WANT_X509_LOOKUP:
 808                                 BIO_printf(bio_c_out,"write X BLOCK\n");
 809                                 break;
 810                         case SSL_ERROR_ZERO_RETURN:
 811                                 if (cbuf_len != 0)
 812                                         {
 813                                         BIO_printf(bio_c_out,"shutdown\n");
 814                                         goto shut;
 815                                         }
 816                                 else
 817                                         {
 818                                         read_tty=1;
 819                                         write_ssl=0;
 820                                         break;
 821                                         }
 822
 823                         case SSL_ERROR_SYSCALL:
 824                                 if ((k != 0) || (cbuf_len != 0))
 825                                         {
 826                                         BIO_printf(bio_err,"write:errno=%d\n",
 827                                                 get_last_socket_error());
 828                                         goto shut;
 829                                         }
 830                                 else
 831                                         {
 832                                         read_tty=1;
 833                                         write_ssl=0;
 834                                         }
 835                                 break;
 836                         case SSL_ERROR_SSL:
 837                                 ERR_print_errors(bio_err);
 838                                 goto shut;
 839                                 }
 840                         }
 841 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
 842                 /* Assume Windows/DOS can always write */
 843                 else if (!ssl_pending && write_tty)
 844 #else
 845                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
 846 #endif
 847                         {
 848 #ifdef CHARSET_EBCDIC
 849                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
 850 #endif
 851                         i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
 852
 853                         if (i <= 0)
 854                                 {
 855                                 BIO_printf(bio_c_out,"DONE\n");
 856                                 goto shut;
 857                                 /* goto end; */
 858                                 }
 859
 860                         sbuf_len-=i;;
 861                         sbuf_off+=i;
 862                         if (sbuf_len <= 0)
 863                                 {
 864                                 read_ssl=1;
 865                                 write_tty=0;
 866                                 }
 867                         }
 868                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
 869                         {
 870 #ifdef RENEG
 871 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
 872 #endif
 873 #if 1
 874                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
 875 #else
 876 /* Demo for pending and peek :-) */
 877                         k=SSL_read(con,sbuf,16);
 878 { char zbuf[10240];
 879 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
 880 }
 881 #endif
 882
 883                         switch (SSL_get_error(con,k))
 884                                 {
 885                         case SSL_ERROR_NONE:
 886                                 if (k <= 0)
 887                                         goto end;
 888                                 sbuf_off=0;
 889                                 sbuf_len=k;
 890
 891                                 read_ssl=0;
 892                                 write_tty=1;
 893                                 break;
 894                         case SSL_ERROR_WANT_WRITE:
 895                                 BIO_printf(bio_c_out,"read W BLOCK\n");
 896                                 write_ssl=1;
 897                                 read_tty=0;
 898                                 break;
 899                         case SSL_ERROR_WANT_READ:
 900                                 BIO_printf(bio_c_out,"read R BLOCK\n");
 901                                 write_tty=0;
 902                                 read_ssl=1;
 903                                 if ((read_tty == 0) && (write_ssl == 0))
 904                                         write_ssl=1;
 905                                 break;
 906                         case SSL_ERROR_WANT_X509_LOOKUP:
 907                                 BIO_printf(bio_c_out,"read X BLOCK\n");
 908                                 break;
 909                         case SSL_ERROR_SYSCALL:
 910                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
 911                                 goto shut;
 912                         case SSL_ERROR_ZERO_RETURN:
 913                                 BIO_printf(bio_c_out,"closed\n");
 914                                 goto shut;
 915                         case SSL_ERROR_SSL:
 916                                 ERR_print_errors(bio_err);
 917                                 goto shut;
 918                                 /* break; */
 919                                 }
 920                         }
 921
 922 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
 923 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
 924                 else if (_kbhit())
 925 #else
 926                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
 927 #endif
 928 #elif defined (OPENSSL_SYS_NETWARE)
 929         else if (_kbhit())
 930 #else
 931                 else if (FD_ISSET(fileno(stdin),&readfds))
 932 #endif
 933                         {
 934                         if (crlf)
 935                                 {
 936                                 int j, lf_num;
 937
 938                                 i=read(fileno(stdin),cbuf,BUFSIZZ/2);
 939                                 lf_num = 0;
 940                                 /* both loops are skipped when i <= 0 */
 941                                 for (j = 0; j < i; j++)
 942                                         if (cbuf[j] == '\n')
 943                                                 lf_num++;
 944                                 for (j = i-1; j >= 0; j--)
 945                                         {
 946                                         cbuf[j+lf_num] = cbuf[j];
 947                                         if (cbuf[j] == '\n')
 948                                                 {
 949                                                 lf_num--;
 950                                                 i++;
 951                                                 cbuf[j+lf_num] = '\r';
 952                                                 }
 953                                         }
 954                                 assert(lf_num == 0);
 955                                 }
 956                         else
 957                                 i=read(fileno(stdin),cbuf,BUFSIZZ);
 958
 959                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
 960                                 {
 961                                 BIO_printf(bio_err,"DONE\n");
 962                                 goto shut;
 963                                 }
 964
 965                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
 966                                 {
 967                                 BIO_printf(bio_err,"RENEGOTIATING\n");
 968                                 SSL_renegotiate(con);
 969                                 cbuf_len=0;
 970                                 }
 971                         else
 972                                 {
 973                                 cbuf_len=i;
 974                                 cbuf_off=0;
 975 #ifdef CHARSET_EBCDIC
 976                                 ebcdic2ascii(cbuf, cbuf, i);
 977 #endif
 978                                 }
 979
 980                         write_ssl=1;
 981                         read_tty=0;
 982                         }
 983                 }
 984 shut:
 985         SSL_shutdown(con);
 986         SHUTDOWN(SSL_get_fd(con));
 987         ret=0;
 988 end:
 989         if(prexit) print_stuff(bio_c_out,con,1);
 990         if (con != NULL) SSL_free(con);
 991         if (con2 != NULL) SSL_free(con2);
 992         if (ctx != NULL) SSL_CTX_free(ctx);
 993         if (cert)
 994                 X509_free(cert);
 995         if (key)
 996                 EVP_PKEY_free(key);
 997         if (pass)
 998                 OPENSSL_free(pass);
 999         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1000         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1001         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1002         if (bio_c_out != NULL)
1003                 {
1004                 BIO_free(bio_c_out);
1005                 bio_c_out=NULL;
1006                 }
1007         apps_shutdown();
1008         OPENSSL_EXIT(ret);
1009         }
1010
1011
1012 static void print_stuff(BIO *bio, SSL *s, int full)
1013         {
1014         X509 *peer=NULL;
1015         char *p;
1016         static char *space="                ";
1017         char buf[BUFSIZ];
1018         STACK_OF(X509) *sk;
1019         STACK_OF(X509_NAME) *sk2;
1020         SSL_CIPHER *c;
1021         X509_NAME *xn;
1022         int j,i;
1023         const COMP_METHOD *comp, *expansion;
1024
1025         if (full)
1026                 {
1027                 int got_a_chain = 0;
1028
1029                 sk=SSL_get_peer_cert_chain(s);
1030                 if (sk != NULL)
1031                         {
1032                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1033
1034                         BIO_printf(bio,"---\nCertificate chain\n");
1035                         for (i=0; i<sk_X509_num(sk); i++)
1036                                 {
1037                                 X509_NAME_oneline(X509_get_subject_name(
1038                                         sk_X509_value(sk,i)),buf,sizeof buf);
1039                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1040                                 X509_NAME_oneline(X509_get_issuer_name(
1041                                         sk_X509_value(sk,i)),buf,sizeof buf);
1042                                 BIO_printf(bio,"   i:%s\n",buf);
1043                                 if (c_showcerts)
1044                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1045                                 }
1046                         }
1047
1048                 BIO_printf(bio,"---\n");
1049                 peer=SSL_get_peer_certificate(s);
1050                 if (peer != NULL)
1051                         {
1052                         BIO_printf(bio,"Server certificate\n");
1053                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1054                                 PEM_write_bio_X509(bio,peer);
1055                         X509_NAME_oneline(X509_get_subject_name(peer),
1056                                 buf,sizeof buf);
1057                         BIO_printf(bio,"subject=%s\n",buf);
1058                         X509_NAME_oneline(X509_get_issuer_name(peer),
1059                                 buf,sizeof buf);
1060                         BIO_printf(bio,"issuer=%s\n",buf);
1061                         }
1062                 else
1063                         BIO_printf(bio,"no peer certificate available\n");
1064
1065                 sk2=SSL_get_client_CA_list(s);
1066                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1067                         {
1068                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1069                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1070                                 {
1071                                 xn=sk_X509_NAME_value(sk2,i);
1072                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1073                                 BIO_write(bio,buf,strlen(buf));
1074                                 BIO_write(bio,"\n",1);
1075                                 }
1076                         }
1077                 else
1078                         {
1079                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1080                         }
1081                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1082                 if (p != NULL)
1083                         {
1084                         /* This works only for SSL 2.  In later protocol
1085                          * versions, the client does not know what other
1086                          * ciphers (in addition to the one to be used
1087                          * in the current connection) the server supports. */
1088
1089                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1090                         j=i=0;
1091                         while (*p)
1092                                 {
1093                                 if (*p == ':')
1094                                         {
1095                                         BIO_write(bio,space,15-j%25);
1096                                         i++;
1097                                         j=0;
1098                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1099                                         }
1100                                 else
1101                                         {
1102                                         BIO_write(bio,p,1);
1103                                         j++;
1104                                         }
1105                                 p++;
1106                                 }
1107                         BIO_write(bio,"\n",1);
1108                         }
1109
1110                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1111                         BIO_number_read(SSL_get_rbio(s)),
1112                         BIO_number_written(SSL_get_wbio(s)));
1113                 }
1114         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1115         c=SSL_get_current_cipher(s);
1116         BIO_printf(bio,"%s, Cipher is %s\n",
1117                 SSL_CIPHER_get_version(c),
1118                 SSL_CIPHER_get_name(c));
1119         if (peer != NULL) {
1120                 EVP_PKEY *pktmp;
1121                 pktmp = X509_get_pubkey(peer);
1122                 BIO_printf(bio,"Server public key is %d bit\n",
1123                                                          EVP_PKEY_bits(pktmp));
1124                 EVP_PKEY_free(pktmp);
1125         }
1126         comp=SSL_get_current_compression(s);
1127         expansion=SSL_get_current_expansion(s);
1128         BIO_printf(bio,"Compression: %s\n",
1129                 comp ? SSL_COMP_get_name(comp) : "NONE");
1130         BIO_printf(bio,"Expansion: %s\n",
1131                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1132         SSL_SESSION_print(bio,SSL_get_session(s));
1133         BIO_printf(bio,"---\n");
1134         if (peer != NULL)
1135                 X509_free(peer);
1136         /* flush, or debugging output gets mixed with http response */
1137         BIO_flush(bio);
1138         }
1139