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) 1998-2006 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  * Copyright 2005 Nokia. All rights reserved.
 113  *
 114  * The portions of the attached software ("Contribution") is developed by
 115  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
 116  * license.
 117  *
 118  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
 119  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
 120  * support (see RFC 4279) to OpenSSL.
 121  *
 122  * No patent licenses or other rights except those expressly stated in
 123  * the OpenSSL open source license shall be deemed granted or received
 124  * expressly, by implication, estoppel, or otherwise.
 125  *
 126  * No assurances are provided by Nokia that the Contribution does not
 127  * infringe the patent or other intellectual property rights of any third
 128  * party or that the license provides you with all the necessary rights
 129  * to make use of the Contribution.
 130  *
 131  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
 132  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
 133  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
 134  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
 135  * OTHERWISE.
 136  */
 137
 138 #include <assert.h>
 139 #include <ctype.h>
 140 #include <stdio.h>
 141 #include <stdlib.h>
 142 #include <string.h>
 143 #include <openssl/e_os2.h>
 144 #ifdef OPENSSL_NO_STDIO
 145 #define APPS_WIN16
 146 #endif
 147
 148 /* With IPv6, it looks like Digital has mixed up the proper order of
 149    recursive header file inclusion, resulting in the compiler complaining
 150    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 151    is needed to have fileno() declared correctly...  So let's define u_int */
 152 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 153 #define __U_INT
 154 typedef unsigned int u_int;
 155 #endif
 156
 157 #define USE_SOCKETS
 158 #include "apps.h"
 159 #include <openssl/x509.h>
 160 #include <openssl/ssl.h>
 161 #include <openssl/err.h>
 162 #include <openssl/pem.h>
 163 #include <openssl/rand.h>
 164 #include "s_apps.h"
 165 #include "timeouts.h"
 166
 167 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 168 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 169 #undef FIONBIO
 170 #endif
 171
 172 #if defined(OPENSSL_SYS_BEOS_R5)
 173 #include <fcntl.h>
 174 #endif
 175
 176 #undef PROG
 177 #define PROG    s_client_main
 178
 179 /*#define SSL_HOST_NAME "www.netscape.com" */
 180 /*#define SSL_HOST_NAME "193.118.187.102" */
 181 #define SSL_HOST_NAME   "localhost"
 182
 183 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 184
 185 #undef BUFSIZZ
 186 #define BUFSIZZ 1024*8
 187
 188 extern int verify_depth;
 189 extern int verify_error;
 190 extern int verify_return_error;
 191
 192 #ifdef FIONBIO
 193 static int c_nbio=0;
 194 #endif
 195 static int c_Pause=0;
 196 static int c_debug=0;
 197 static int c_msg=0;
 198 static int c_showcerts=0;
 199
 200 static void sc_usage(void);
 201 static void print_stuff(BIO *berr,SSL *con,int full);
 202 static BIO *bio_c_out=NULL;
 203 static int c_quiet=0;
 204 static int c_ign_eof=0;
 205
 206 #ifndef OPENSSL_NO_PSK
 207 /* Default PSK identity and key */
 208 static char *psk_identity="Client_identity";
 209 static char *psk_key=NULL; /* by default PSK is not used */
 210
 211 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
 212         unsigned int max_identity_len, unsigned char *psk,
 213         unsigned int max_psk_len)
 214         {
 215         unsigned int psk_len = 0;
 216         int ret;
 217         BIGNUM *bn=NULL;
 218
 219         if (c_debug)
 220                 BIO_printf(bio_c_out, "psk_client_cb\n");
 221         if (!hint)
 222                 {
 223                 /* no ServerKeyExchange message*/
 224                 if (c_debug)
 225                         BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n");
 226                 }
 227         else if (c_debug)
 228                 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
 229
 230         /* lookup PSK identity and PSK key based on the given identity hint here */
 231         ret = BIO_snprintf(identity, max_identity_len, psk_identity);
 232         if (ret < 0 || (unsigned int)ret > max_identity_len)
 233                 goto out_err;
 234         if (c_debug)
 235                 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret);
 236         ret=BN_hex2bn(&bn, psk_key);
 237         if (!ret)
 238                 {
 239                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 240                 if (bn)
 241                         BN_free(bn);
 242                 return 0;
 243                 }
 244
 245         if ((unsigned int)BN_num_bytes(bn) > max_psk_len)
 246                 {
 247                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 248                         max_psk_len, BN_num_bytes(bn));
 249                 BN_free(bn);
 250                 return 0;
 251                 }
 252
 253         psk_len=BN_bn2bin(bn, psk);
 254         BN_free(bn);
 255         if (psk_len == 0)
 256                 goto out_err;
 257
 258         if (c_debug)
 259                 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
 260
 261         return psk_len;
 262  out_err:
 263         if (c_debug)
 264                 BIO_printf(bio_err, "Error in PSK client callback\n");
 265         return 0;
 266         }
 267 #endif
 268
 269 static void sc_usage(void)
 270         {
 271         BIO_printf(bio_err,"usage: s_client args\n");
 272         BIO_printf(bio_err,"\n");
 273         BIO_printf(bio_err," -host host     - use -connect instead\n");
 274         BIO_printf(bio_err," -port port     - use -connect instead\n");
 275         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 276
 277         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 278         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 279         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 280         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 281         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 282         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 283         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 284         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 285         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 286         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 287         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 288         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 289         BIO_printf(bio_err," -debug        - extra output\n");
 290 #ifdef WATT32
 291         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 292 #endif
 293         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 294         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 295         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 296 #ifdef FIONBIO
 297         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 298 #endif
 299         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 300         BIO_printf(bio_err," -quiet        - no s_client output\n");
 301         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 302 #ifndef OPENSSL_NO_PSK
 303         BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
 304         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 305 #endif
 306         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 307         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 308         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 309         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 310         BIO_printf(bio_err," -mtu          - set the MTU\n");
 311         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 312         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 313         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 314         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 315         BIO_printf(bio_err,"                 command to see what is available\n");
 316         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 317         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 318         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 319         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", and \"ftp\" are supported.\n");
 320 #ifndef OPENSSL_NO_ENGINE
 321         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 322 #endif
 323         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 324 #ifndef OPENSSL_NO_TLSEXT
 325         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 326 #endif
 327         }
 328
 329 #ifndef OPENSSL_NO_TLSEXT
 330
 331 /* This is a context that we pass to callbacks */
 332 typedef struct tlsextctx_st {
 333    BIO * biodebug;
 334    int ack;
 335 } tlsextctx;
 336
 337
 338 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 339         {
 340         tlsextctx * p = (tlsextctx *) arg;
 341         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 342         if (SSL_get_servername_type(s) != -1)
 343                 p->ack = !SSL_session_reused(s) && hn != NULL;
 344         else
 345                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 346
 347         return SSL_TLSEXT_ERR_OK;
 348         }
 349 #endif
 350
 351 enum
 352 {
 353         PROTO_OFF       = 0,
 354         PROTO_SMTP,
 355         PROTO_POP3,
 356         PROTO_IMAP,
 357         PROTO_FTP
 358 };
 359
 360 int MAIN(int, char **);
 361
 362 int MAIN(int argc, char **argv)
 363         {
 364         int off=0;
 365         SSL *con=NULL;
 366         X509_STORE *store = NULL;
 367         int s,k,width,state=0;
 368         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 369         int cbuf_len,cbuf_off;
 370         int sbuf_len,sbuf_off;
 371         fd_set readfds,writefds;
 372         short port=PORT;
 373         int full_log=1;
 374         char *host=SSL_HOST_NAME;
 375         char *cert_file=NULL,*key_file=NULL;
 376         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 377         char *passarg = NULL, *pass = NULL;
 378         X509 *cert = NULL;
 379         EVP_PKEY *key = NULL;
 380         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 381         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 382         int crlf=0;
 383         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 384         SSL_CTX *ctx=NULL;
 385         int ret=1,in_init=1,i,nbio_test=0;
 386         int starttls_proto = PROTO_OFF;
 387         int prexit = 0, vflags = 0;
 388         const SSL_METHOD *meth=NULL;
 389         int socket_type=SOCK_STREAM;
 390         BIO *sbio;
 391         char *inrand=NULL;
 392         int mbuf_len=0;
 393 #ifndef OPENSSL_NO_ENGINE
 394         char *engine_id=NULL;
 395         ENGINE *e=NULL;
 396 #endif
 397 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
 398         struct timeval tv;
 399 #if defined(OPENSSL_SYS_BEOS_R5)
 400         int stdin_set = 0;
 401 #endif
 402 #endif
 403
 404 #ifndef OPENSSL_NO_TLSEXT
 405         char *servername = NULL;
 406         tlsextctx tlsextcbp =
 407         {NULL,0};
 408 #endif
 409         struct sockaddr peer;
 410         int peerlen = sizeof(peer);
 411         int enable_timeouts = 0 ;
 412         long socket_mtu = 0;
 413
 414 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 415         meth=SSLv23_client_method();
 416 #elif !defined(OPENSSL_NO_SSL3)
 417         meth=SSLv3_client_method();
 418 #elif !defined(OPENSSL_NO_SSL2)
 419         meth=SSLv2_client_method();
 420 #endif
 421
 422         apps_startup();
 423         c_Pause=0;
 424         c_quiet=0;
 425         c_ign_eof=0;
 426         c_debug=0;
 427         c_msg=0;
 428         c_showcerts=0;
 429
 430         if (bio_err == NULL)
 431                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 432
 433         if (!load_config(bio_err, NULL))
 434                 goto end;
 435
 436         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 437                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 438                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 439                 {
 440                 BIO_printf(bio_err,"out of memory\n");
 441                 goto end;
 442                 }
 443
 444         verify_depth=0;
 445         verify_error=X509_V_OK;
 446 #ifdef FIONBIO
 447         c_nbio=0;
 448 #endif
 449
 450         argc--;
 451         argv++;
 452         while (argc >= 1)
 453                 {
 454                 if      (strcmp(*argv,"-host") == 0)
 455                         {
 456                         if (--argc < 1) goto bad;
 457                         host= *(++argv);
 458                         }
 459                 else if (strcmp(*argv,"-port") == 0)
 460                         {
 461                         if (--argc < 1) goto bad;
 462                         port=atoi(*(++argv));
 463                         if (port == 0) goto bad;
 464                         }
 465                 else if (strcmp(*argv,"-connect") == 0)
 466                         {
 467                         if (--argc < 1) goto bad;
 468                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 469                                 goto bad;
 470                         }
 471                 else if (strcmp(*argv,"-verify") == 0)
 472                         {
 473                         verify=SSL_VERIFY_PEER;
 474                         if (--argc < 1) goto bad;
 475                         verify_depth=atoi(*(++argv));
 476                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 477                         }
 478                 else if (strcmp(*argv,"-cert") == 0)
 479                         {
 480                         if (--argc < 1) goto bad;
 481                         cert_file= *(++argv);
 482                         }
 483                 else if (strcmp(*argv,"-certform") == 0)
 484                         {
 485                         if (--argc < 1) goto bad;
 486                         cert_format = str2fmt(*(++argv));
 487                         }
 488                 else if (strcmp(*argv,"-crl_check") == 0)
 489                         vflags |= X509_V_FLAG_CRL_CHECK;
 490                 else if (strcmp(*argv,"-crl_check_all") == 0)
 491                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 492                 else if (strcmp(*argv,"-verify_return_error") == 0)
 493                         verify_return_error = 1;
 494                 else if (strcmp(*argv,"-prexit") == 0)
 495                         prexit=1;
 496                 else if (strcmp(*argv,"-crlf") == 0)
 497                         crlf=1;
 498                 else if (strcmp(*argv,"-quiet") == 0)
 499                         {
 500                         c_quiet=1;
 501                         c_ign_eof=1;
 502                         }
 503                 else if (strcmp(*argv,"-ign_eof") == 0)
 504                         c_ign_eof=1;
 505                 else if (strcmp(*argv,"-pause") == 0)
 506                         c_Pause=1;
 507                 else if (strcmp(*argv,"-debug") == 0)
 508                         c_debug=1;
 509 #ifdef WATT32
 510                 else if (strcmp(*argv,"-wdebug") == 0)
 511                         dbug_init();
 512 #endif
 513                 else if (strcmp(*argv,"-msg") == 0)
 514                         c_msg=1;
 515                 else if (strcmp(*argv,"-showcerts") == 0)
 516                         c_showcerts=1;
 517                 else if (strcmp(*argv,"-nbio_test") == 0)
 518                         nbio_test=1;
 519                 else if (strcmp(*argv,"-state") == 0)
 520                         state=1;
 521 #ifndef OPENSSL_NO_PSK
 522                 else if (strcmp(*argv,"-psk_identity") == 0)
 523                         {
 524                         if (--argc < 1) goto bad;
 525                         psk_identity=*(++argv);
 526                         }
 527                 else if (strcmp(*argv,"-psk") == 0)
 528                         {
 529                         size_t j;
 530
 531                         if (--argc < 1) goto bad;
 532                         psk_key=*(++argv);
 533                         for (j = 0; j < strlen(psk_key); j++)
 534                                 {
 535                                 if (isxdigit((int)psk_key[j]))
 536                                         continue;
 537                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
 538                                 goto bad;
 539                                 }
 540                         }
 541 #endif
 542 #ifndef OPENSSL_NO_SSL2
 543                 else if (strcmp(*argv,"-ssl2") == 0)
 544                         meth=SSLv2_client_method();
 545 #endif
 546 #ifndef OPENSSL_NO_SSL3
 547                 else if (strcmp(*argv,"-ssl3") == 0)
 548                         meth=SSLv3_client_method();
 549 #endif
 550 #ifndef OPENSSL_NO_TLS1
 551                 else if (strcmp(*argv,"-tls1") == 0)
 552                         meth=TLSv1_client_method();
 553 #endif
 554 #ifndef OPENSSL_NO_DTLS1
 555                 else if (strcmp(*argv,"-dtls1") == 0)
 556                         {
 557                         meth=DTLSv1_client_method();
 558                         socket_type=SOCK_DGRAM;
 559                         }
 560                 else if (strcmp(*argv,"-timeout") == 0)
 561                         enable_timeouts=1;
 562                 else if (strcmp(*argv,"-mtu") == 0)
 563                         {
 564                         if (--argc < 1) goto bad;
 565                         socket_mtu = atol(*(++argv));
 566                         }
 567 #endif
 568                 else if (strcmp(*argv,"-bugs") == 0)
 569                         bugs=1;
 570                 else if (strcmp(*argv,"-keyform") == 0)
 571                         {
 572                         if (--argc < 1) goto bad;
 573                         key_format = str2fmt(*(++argv));
 574                         }
 575                 else if (strcmp(*argv,"-pass") == 0)
 576                         {
 577                         if (--argc < 1) goto bad;
 578                         passarg = *(++argv);
 579                         }
 580                 else if (strcmp(*argv,"-key") == 0)
 581                         {
 582                         if (--argc < 1) goto bad;
 583                         key_file= *(++argv);
 584                         }
 585                 else if (strcmp(*argv,"-reconnect") == 0)
 586                         {
 587                         reconnect=5;
 588                         }
 589                 else if (strcmp(*argv,"-CApath") == 0)
 590                         {
 591                         if (--argc < 1) goto bad;
 592                         CApath= *(++argv);
 593                         }
 594                 else if (strcmp(*argv,"-CAfile") == 0)
 595                         {
 596                         if (--argc < 1) goto bad;
 597                         CAfile= *(++argv);
 598                         }
 599                 else if (strcmp(*argv,"-no_tls1") == 0)
 600                         off|=SSL_OP_NO_TLSv1;
 601                 else if (strcmp(*argv,"-no_ssl3") == 0)
 602                         off|=SSL_OP_NO_SSLv3;
 603                 else if (strcmp(*argv,"-no_ssl2") == 0)
 604                         off|=SSL_OP_NO_SSLv2;
 605                 else if (strcmp(*argv,"-no_comp") == 0)
 606                         { off|=SSL_OP_NO_COMPRESSION; }
 607                 else if (strcmp(*argv,"-serverpref") == 0)
 608                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 609                 else if (strcmp(*argv,"-cipher") == 0)
 610                         {
 611                         if (--argc < 1) goto bad;
 612                         cipher= *(++argv);
 613                         }
 614 #ifdef FIONBIO
 615                 else if (strcmp(*argv,"-nbio") == 0)
 616                         { c_nbio=1; }
 617 #endif
 618                 else if (strcmp(*argv,"-starttls") == 0)
 619                         {
 620                         if (--argc < 1) goto bad;
 621                         ++argv;
 622                         if (strcmp(*argv,"smtp") == 0)
 623                                 starttls_proto = PROTO_SMTP;
 624                         else if (strcmp(*argv,"pop3") == 0)
 625                                 starttls_proto = PROTO_POP3;
 626                         else if (strcmp(*argv,"imap") == 0)
 627                                 starttls_proto = PROTO_IMAP;
 628                         else if (strcmp(*argv,"ftp") == 0)
 629                                 starttls_proto = PROTO_FTP;
 630                         else
 631                                 goto bad;
 632                         }
 633 #ifndef OPENSSL_NO_ENGINE
 634                 else if (strcmp(*argv,"-engine") == 0)
 635                         {
 636                         if (--argc < 1) goto bad;
 637                         engine_id = *(++argv);
 638                         }
 639 #endif
 640                 else if (strcmp(*argv,"-rand") == 0)
 641                         {
 642                         if (--argc < 1) goto bad;
 643                         inrand= *(++argv);
 644                         }
 645 #ifndef OPENSSL_NO_TLSEXT
 646                 else if (strcmp(*argv,"-servername") == 0)
 647                         {
 648                         if (--argc < 1) goto bad;
 649                         servername= *(++argv);
 650                         /* meth=TLSv1_client_method(); */
 651                         }
 652 #endif
 653                 else
 654                         {
 655                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 656                         badop=1;
 657                         break;
 658                         }
 659                 argc--;
 660                 argv++;
 661                 }
 662         if (badop)
 663                 {
 664 bad:
 665                 sc_usage();
 666                 goto end;
 667                 }
 668
 669         OpenSSL_add_ssl_algorithms();
 670         SSL_load_error_strings();
 671
 672 #ifndef OPENSSL_NO_ENGINE
 673         e = setup_engine(bio_err, engine_id, 1);
 674 #endif
 675         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
 676                 {
 677                 BIO_printf(bio_err, "Error getting password\n");
 678                 goto end;
 679                 }
 680
 681         if (key_file == NULL)
 682                 key_file = cert_file;
 683
 684
 685         if (key_file)
 686
 687                 {
 688
 689                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
 690                                "client certificate private key file");
 691                 if (!key)
 692                         {
 693                         ERR_print_errors(bio_err);
 694                         goto end;
 695                         }
 696
 697                 }
 698
 699         if (cert_file)
 700
 701                 {
 702                 cert = load_cert(bio_err,cert_file,cert_format,
 703                                 NULL, e, "client certificate file");
 704
 705                 if (!cert)
 706                         {
 707                         ERR_print_errors(bio_err);
 708                         goto end;
 709                         }
 710                 }
 711
 712         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 713                 && !RAND_status())
 714                 {
 715                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 716                 }
 717         if (inrand != NULL)
 718                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 719                         app_RAND_load_files(inrand));
 720
 721         if (bio_c_out == NULL)
 722                 {
 723                 if (c_quiet && !c_debug && !c_msg)
 724                         {
 725                         bio_c_out=BIO_new(BIO_s_null());
 726                         }
 727                 else
 728                         {
 729                         if (bio_c_out == NULL)
 730                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 731                         }
 732                 }
 733
 734         ctx=SSL_CTX_new(meth);
 735         if (ctx == NULL)
 736                 {
 737                 ERR_print_errors(bio_err);
 738                 goto end;
 739                 }
 740
 741 #ifndef OPENSSL_NO_PSK
 742         if (psk_key != NULL)
 743                 {
 744                 if (c_debug)
 745                         BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
 746                 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
 747                 }
 748 #endif
 749         if (bugs)
 750                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 751         else
 752                 SSL_CTX_set_options(ctx,off);
 753         /* DTLS: partial reads end up discarding unread UDP bytes :-(
 754          * Setting read ahead solves this problem.
 755          */
 756         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
 757
 758         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 759         if (cipher != NULL)
 760                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 761                 BIO_printf(bio_err,"error setting cipher list\n");
 762                 ERR_print_errors(bio_err);
 763                 goto end;
 764         }
 765 #if 0
 766         else
 767                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 768 #endif
 769
 770         SSL_CTX_set_verify(ctx,verify,verify_callback);
 771         if (!set_cert_key_stuff(ctx,cert,key))
 772                 goto end;
 773
 774         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 775                 (!SSL_CTX_set_default_verify_paths(ctx)))
 776                 {
 777                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 778                 ERR_print_errors(bio_err);
 779                 /* goto end; */
 780                 }
 781
 782         store = SSL_CTX_get_cert_store(ctx);
 783         X509_STORE_set_flags(store, vflags);
 784 #ifndef OPENSSL_NO_TLSEXT
 785         if (servername != NULL)
 786                 {
 787                 tlsextcbp.biodebug = bio_err;
 788                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
 789                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
 790                 }
 791 #endif
 792
 793         con=SSL_new(ctx);
 794 #ifndef OPENSSL_NO_TLSEXT
 795         if (servername != NULL)
 796                 {
 797                 if (!SSL_set_tlsext_host_name(con,servername))
 798                         {
 799                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
 800                         ERR_print_errors(bio_err);
 801                         goto end;
 802                         }
 803                 }
 804 #endif
 805 #ifndef OPENSSL_NO_KRB5
 806         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 807                 {
 808                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 809                 }
 810 #endif  /* OPENSSL_NO_KRB5  */
 811 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 812
 813 re_start:
 814
 815         if (init_client(&s,host,port,socket_type) == 0)
 816                 {
 817                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 818                 SHUTDOWN(s);
 819                 goto end;
 820                 }
 821         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 822
 823 #ifdef FIONBIO
 824         if (c_nbio)
 825                 {
 826                 unsigned long l=1;
 827                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 828                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 829                         {
 830                         ERR_print_errors(bio_err);
 831                         goto end;
 832                         }
 833                 }
 834 #endif
 835         if (c_Pause & 0x01) con->debug=1;
 836
 837         if ( SSL_version(con) == DTLS1_VERSION)
 838                 {
 839                 struct timeval timeout;
 840
 841                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
 842                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
 843                         {
 844                         BIO_printf(bio_err, "getsockname:errno=%d\n",
 845                                 get_last_socket_error());
 846                         SHUTDOWN(s);
 847                         goto end;
 848                         }
 849
 850                 BIO_ctrl_set_connected(sbio, 1, &peer);
 851
 852                 if (enable_timeouts)
 853                         {
 854                         timeout.tv_sec = 0;
 855                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
 856                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
 857
 858                         timeout.tv_sec = 0;
 859                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
 860                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
 861                         }
 862
 863                 if (socket_mtu > 0)
 864                         {
 865                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
 866                         SSL_set_mtu(con, socket_mtu);
 867                         }
 868                 else
 869                         /* want to do MTU discovery */
 870                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
 871                 }
 872         else
 873                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
 874
 875
 876
 877         if (nbio_test)
 878                 {
 879                 BIO *test;
 880
 881                 test=BIO_new(BIO_f_nbio_test());
 882                 sbio=BIO_push(test,sbio);
 883                 }
 884
 885         if (c_debug)
 886                 {
 887                 con->debug=1;
 888                 BIO_set_callback(sbio,bio_dump_callback);
 889                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
 890                 }
 891         if (c_msg)
 892                 {
 893                 SSL_set_msg_callback(con, msg_cb);
 894                 SSL_set_msg_callback_arg(con, bio_c_out);
 895                 }
 896
 897         SSL_set_bio(con,sbio,sbio);
 898         SSL_set_connect_state(con);
 899
 900         /* ok, lets connect */
 901         width=SSL_get_fd(con)+1;
 902
 903         read_tty=1;
 904         write_tty=0;
 905         tty_on=0;
 906         read_ssl=1;
 907         write_ssl=1;
 908
 909         cbuf_len=0;
 910         cbuf_off=0;
 911         sbuf_len=0;
 912         sbuf_off=0;
 913
 914         /* This is an ugly hack that does a lot of assumptions */
 915         /* We do have to handle multi-line responses which may come
 916            in a single packet or not. We therefore have to use
 917            BIO_gets() which does need a buffering BIO. So during
 918            the initial chitchat we do push a buffering BIO into the
 919            chain that is removed again later on to not disturb the
 920            rest of the s_client operation. */
 921         if (starttls_proto == PROTO_SMTP)
 922                 {
 923                 int foundit=0;
 924                 BIO *fbio = BIO_new(BIO_f_buffer());
 925                 BIO_push(fbio, sbio);
 926                 /* wait for multi-line response to end from SMTP */
 927                 do
 928                         {
 929                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 930                         }
 931                 while (mbuf_len>3 && mbuf[3]=='-');
 932                 /* STARTTLS command requires EHLO... */
 933                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
 934                 BIO_flush(fbio);
 935                 /* wait for multi-line response to end EHLO SMTP response */
 936                 do
 937                         {
 938                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 939                         if (strstr(mbuf,"STARTTLS"))
 940                                 foundit=1;
 941                         }
 942                 while (mbuf_len>3 && mbuf[3]=='-');
 943                 BIO_flush(fbio);
 944                 BIO_pop(fbio);
 945                 BIO_free(fbio);
 946                 if (!foundit)
 947                         BIO_printf(bio_err,
 948                                    "didn't found starttls in server response,"
 949                                    " try anyway...\n");
 950                 BIO_printf(sbio,"STARTTLS\r\n");
 951                 BIO_read(sbio,sbuf,BUFSIZZ);
 952                 }
 953         else if (starttls_proto == PROTO_POP3)
 954                 {
 955                 BIO_read(sbio,mbuf,BUFSIZZ);
 956                 BIO_printf(sbio,"STLS\r\n");
 957                 BIO_read(sbio,sbuf,BUFSIZZ);
 958                 }
 959         else if (starttls_proto == PROTO_IMAP)
 960                 {
 961                 int foundit=0;
 962                 BIO *fbio = BIO_new(BIO_f_buffer());
 963                 BIO_push(fbio, sbio);
 964                 BIO_gets(fbio,mbuf,BUFSIZZ);
 965                 /* STARTTLS command requires CAPABILITY... */
 966                 BIO_printf(fbio,". CAPABILITY\r\n");
 967                 BIO_flush(fbio);
 968                 /* wait for multi-line CAPABILITY response */
 969                 do
 970                         {
 971                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 972                         if (strstr(mbuf,"STARTTLS"))
 973                                 foundit=1;
 974                         }
 975                 while (mbuf_len>3 && mbuf[0]!='.');
 976                 BIO_flush(fbio);
 977                 BIO_pop(fbio);
 978                 BIO_free(fbio);
 979                 if (!foundit)
 980                         BIO_printf(bio_err,
 981                                    "didn't found STARTTLS in server response,"
 982                                    " try anyway...\n");
 983                 BIO_printf(sbio,". STARTTLS\r\n");
 984                 BIO_read(sbio,sbuf,BUFSIZZ);
 985                 }
 986         else if (starttls_proto == PROTO_FTP)
 987                 {
 988                 BIO *fbio = BIO_new(BIO_f_buffer());
 989                 BIO_push(fbio, sbio);
 990                 /* wait for multi-line response to end from FTP */
 991                 do
 992                         {
 993                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 994                         }
 995                 while (mbuf_len>3 && mbuf[3]=='-');
 996                 BIO_flush(fbio);
 997                 BIO_pop(fbio);
 998                 BIO_free(fbio);
 999                 BIO_printf(sbio,"AUTH TLS\r\n");
1000                 BIO_read(sbio,sbuf,BUFSIZZ);
1001                 }
1002
1003         for (;;)
1004                 {
1005                 FD_ZERO(&readfds);
1006                 FD_ZERO(&writefds);
1007
1008                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1009                         {
1010                         in_init=1;
1011                         tty_on=0;
1012                         }
1013                 else
1014                         {
1015                         tty_on=1;
1016                         if (in_init)
1017                                 {
1018                                 in_init=0;
1019 #ifndef OPENSSL_NO_TLSEXT
1020                                 if (servername != NULL && !SSL_session_reused(con))
1021                                         {
1022                                         BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
1023                                         }
1024 #endif
1025                                 print_stuff(bio_c_out,con,full_log);
1026                                 if (full_log > 0) full_log--;
1027
1028                                 if (starttls_proto)
1029                                         {
1030                                         BIO_printf(bio_err,"%s",mbuf);
1031                                         /* We don't need to know any more */
1032                                         starttls_proto = PROTO_OFF;
1033                                         }
1034
1035                                 if (reconnect)
1036                                         {
1037                                         reconnect--;
1038                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1039                                         SSL_shutdown(con);
1040                                         SSL_set_connect_state(con);
1041                                         SHUTDOWN(SSL_get_fd(con));
1042                                         goto re_start;
1043                                         }
1044                                 }
1045                         }
1046
1047                 ssl_pending = read_ssl && SSL_pending(con);
1048
1049                 if (!ssl_pending)
1050                         {
1051 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
1052                         if (tty_on)
1053                                 {
1054                                 if (read_tty)  openssl_fdset(fileno(stdin),&readfds);
1055                                 if (write_tty) openssl_fdset(fileno(stdout),&writefds);
1056                                 }
1057                         if (read_ssl)
1058                                 openssl_fdset(SSL_get_fd(con),&readfds);
1059                         if (write_ssl)
1060                                 openssl_fdset(SSL_get_fd(con),&writefds);
1061 #else
1062                         if(!tty_on || !write_tty) {
1063                                 if (read_ssl)
1064                                         openssl_fdset(SSL_get_fd(con),&readfds);
1065                                 if (write_ssl)
1066                                         openssl_fdset(SSL_get_fd(con),&writefds);
1067                         }
1068 #endif
1069 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1070                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1071
1072                         /* Note: under VMS with SOCKETSHR the second parameter
1073                          * is currently of type (int *) whereas under other
1074                          * systems it is (void *) if you don't have a cast it
1075                          * will choke the compiler: if you do have a cast then
1076                          * you can either go for (int *) or (void *).
1077                          */
1078 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1079                         /* Under Windows/DOS we make the assumption that we can
1080                          * always write to the tty: therefore if we need to
1081                          * write to the tty we just fall through. Otherwise
1082                          * we timeout the select every second and see if there
1083                          * are any keypresses. Note: this is a hack, in a proper
1084                          * Windows application we wouldn't do this.
1085                          */
1086                         i=0;
1087                         if(!write_tty) {
1088                                 if(read_tty) {
1089                                         tv.tv_sec = 1;
1090                                         tv.tv_usec = 0;
1091                                         i=select(width,(void *)&readfds,(void *)&writefds,
1092                                                  NULL,&tv);
1093 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1094                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1095 #else
1096                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1097 #endif
1098                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1099                                          NULL,NULL);
1100                         }
1101 #elif defined(OPENSSL_SYS_NETWARE)
1102                         if(!write_tty) {
1103                                 if(read_tty) {
1104                                         tv.tv_sec = 1;
1105                                         tv.tv_usec = 0;
1106                                         i=select(width,(void *)&readfds,(void *)&writefds,
1107                                                 NULL,&tv);
1108                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1109                                         NULL,NULL);
1110                         }
1111 #elif defined(OPENSSL_SYS_BEOS_R5)
1112                         /* Under BeOS-R5 the situation is similar to DOS */
1113                         i=0;
1114                         stdin_set = 0;
1115                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1116                         if(!write_tty) {
1117                                 if(read_tty) {
1118                                         tv.tv_sec = 1;
1119                                         tv.tv_usec = 0;
1120                                         i=select(width,(void *)&readfds,(void *)&writefds,
1121                                                  NULL,&tv);
1122                                         if (read(fileno(stdin), sbuf, 0) >= 0)
1123                                                 stdin_set = 1;
1124                                         if (!i && (stdin_set != 1 || !read_tty))
1125                                                 continue;
1126                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1127                                          NULL,NULL);
1128                         }
1129                         (void)fcntl(fileno(stdin), F_SETFL, 0);
1130 #else
1131                         i=select(width,(void *)&readfds,(void *)&writefds,
1132                                  NULL,NULL);
1133 #endif
1134                         if ( i < 0)
1135                                 {
1136                                 BIO_printf(bio_err,"bad select %d\n",
1137                                 get_last_socket_error());
1138                                 goto shut;
1139                                 /* goto end; */
1140                                 }
1141                         }
1142
1143                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1144                         {
1145                         k=SSL_write(con,&(cbuf[cbuf_off]),
1146                                 (unsigned int)cbuf_len);
1147                         switch (SSL_get_error(con,k))
1148                                 {
1149                         case SSL_ERROR_NONE:
1150                                 cbuf_off+=k;
1151                                 cbuf_len-=k;
1152                                 if (k <= 0) goto end;
1153                                 /* we have done a  write(con,NULL,0); */
1154                                 if (cbuf_len <= 0)
1155                                         {
1156                                         read_tty=1;
1157                                         write_ssl=0;
1158                                         }
1159                                 else /* if (cbuf_len > 0) */
1160                                         {
1161                                         read_tty=0;
1162                                         write_ssl=1;
1163                                         }
1164                                 break;
1165                         case SSL_ERROR_WANT_WRITE:
1166                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1167                                 write_ssl=1;
1168                                 read_tty=0;
1169                                 break;
1170                         case SSL_ERROR_WANT_READ:
1171                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1172                                 write_tty=0;
1173                                 read_ssl=1;
1174                                 write_ssl=0;
1175                                 break;
1176                         case SSL_ERROR_WANT_X509_LOOKUP:
1177                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1178                                 break;
1179                         case SSL_ERROR_ZERO_RETURN:
1180                                 if (cbuf_len != 0)
1181                                         {
1182                                         BIO_printf(bio_c_out,"shutdown\n");
1183                                         goto shut;
1184                                         }
1185                                 else
1186                                         {
1187                                         read_tty=1;
1188                                         write_ssl=0;
1189                                         break;
1190                                         }
1191
1192                         case SSL_ERROR_SYSCALL:
1193                                 if ((k != 0) || (cbuf_len != 0))
1194                                         {
1195                                         BIO_printf(bio_err,"write:errno=%d\n",
1196                                                 get_last_socket_error());
1197                                         goto shut;
1198                                         }
1199                                 else
1200                                         {
1201                                         read_tty=1;
1202                                         write_ssl=0;
1203                                         }
1204                                 break;
1205                         case SSL_ERROR_SSL:
1206                                 ERR_print_errors(bio_err);
1207                                 goto shut;
1208                                 }
1209                         }
1210 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1211                 /* Assume Windows/DOS/BeOS can always write */
1212                 else if (!ssl_pending && write_tty)
1213 #else
1214                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1215 #endif
1216                         {
1217 #ifdef CHARSET_EBCDIC
1218                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1219 #endif
1220                         i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
1221
1222                         if (i <= 0)
1223                                 {
1224                                 BIO_printf(bio_c_out,"DONE\n");
1225                                 goto shut;
1226                                 /* goto end; */
1227                                 }
1228
1229                         sbuf_len-=i;;
1230                         sbuf_off+=i;
1231                         if (sbuf_len <= 0)
1232                                 {
1233                                 read_ssl=1;
1234                                 write_tty=0;
1235                                 }
1236                         }
1237                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1238                         {
1239 #ifdef RENEG
1240 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1241 #endif
1242 #if 1
1243                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1244 #else
1245 /* Demo for pending and peek :-) */
1246                         k=SSL_read(con,sbuf,16);
1247 { char zbuf[10240];
1248 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1249 }
1250 #endif
1251
1252                         switch (SSL_get_error(con,k))
1253                                 {
1254                         case SSL_ERROR_NONE:
1255                                 if (k <= 0)
1256                                         goto end;
1257                                 sbuf_off=0;
1258                                 sbuf_len=k;
1259
1260                                 read_ssl=0;
1261                                 write_tty=1;
1262                                 break;
1263                         case SSL_ERROR_WANT_WRITE:
1264                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1265                                 write_ssl=1;
1266                                 read_tty=0;
1267                                 break;
1268                         case SSL_ERROR_WANT_READ:
1269                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1270                                 write_tty=0;
1271                                 read_ssl=1;
1272                                 if ((read_tty == 0) && (write_ssl == 0))
1273                                         write_ssl=1;
1274                                 break;
1275                         case SSL_ERROR_WANT_X509_LOOKUP:
1276                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1277                                 break;
1278                         case SSL_ERROR_SYSCALL:
1279                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
1280                                 goto shut;
1281                         case SSL_ERROR_ZERO_RETURN:
1282                                 BIO_printf(bio_c_out,"closed\n");
1283                                 goto shut;
1284                         case SSL_ERROR_SSL:
1285                                 ERR_print_errors(bio_err);
1286                                 goto shut;
1287                                 /* break; */
1288                                 }
1289                         }
1290
1291 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1292 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1293                 else if (_kbhit())
1294 #else
1295                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1296 #endif
1297 #elif defined (OPENSSL_SYS_NETWARE)
1298                 else if (_kbhit())
1299 #elif defined(OPENSSL_SYS_BEOS_R5)
1300                 else if (stdin_set)
1301 #else
1302                 else if (FD_ISSET(fileno(stdin),&readfds))
1303 #endif
1304                         {
1305                         if (crlf)
1306                                 {
1307                                 int j, lf_num;
1308
1309                                 i=raw_read_stdin(cbuf,BUFSIZZ/2);
1310                                 lf_num = 0;
1311                                 /* both loops are skipped when i <= 0 */
1312                                 for (j = 0; j < i; j++)
1313                                         if (cbuf[j] == '\n')
1314                                                 lf_num++;
1315                                 for (j = i-1; j >= 0; j--)
1316                                         {
1317                                         cbuf[j+lf_num] = cbuf[j];
1318                                         if (cbuf[j] == '\n')
1319                                                 {
1320                                                 lf_num--;
1321                                                 i++;
1322                                                 cbuf[j+lf_num] = '\r';
1323                                                 }
1324                                         }
1325                                 assert(lf_num == 0);
1326                                 }
1327                         else
1328                                 i=raw_read_stdin(cbuf,BUFSIZZ);
1329
1330                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1331                                 {
1332                                 BIO_printf(bio_err,"DONE\n");
1333                                 goto shut;
1334                                 }
1335
1336                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1337                                 {
1338                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1339                                 SSL_renegotiate(con);
1340                                 cbuf_len=0;
1341                                 }
1342                         else
1343                                 {
1344                                 cbuf_len=i;
1345                                 cbuf_off=0;
1346 #ifdef CHARSET_EBCDIC
1347                                 ebcdic2ascii(cbuf, cbuf, i);
1348 #endif
1349                                 }
1350
1351                         write_ssl=1;
1352                         read_tty=0;
1353                         }
1354                 }
1355 shut:
1356         if (in_init)
1357                 print_stuff(bio_c_out,con,full_log);
1358         SSL_shutdown(con);
1359         SHUTDOWN(SSL_get_fd(con));
1360         ret=0;
1361 end:
1362         if (con != NULL)
1363                 {
1364                 if (prexit != 0)
1365                         print_stuff(bio_c_out,con,1);
1366                 SSL_free(con);
1367                 }
1368         if (ctx != NULL) SSL_CTX_free(ctx);
1369         if (cert)
1370                 X509_free(cert);
1371         if (key)
1372                 EVP_PKEY_free(key);
1373         if (pass)
1374                 OPENSSL_free(pass);
1375         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1376         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1377         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1378         if (bio_c_out != NULL)
1379                 {
1380                 BIO_free(bio_c_out);
1381                 bio_c_out=NULL;
1382                 }
1383         apps_shutdown();
1384         OPENSSL_EXIT(ret);
1385         }
1386
1387
1388 static void print_stuff(BIO *bio, SSL *s, int full)
1389         {
1390         X509 *peer=NULL;
1391         char *p;
1392         static const char *space="                ";
1393         char buf[BUFSIZ];
1394         STACK_OF(X509) *sk;
1395         STACK_OF(X509_NAME) *sk2;
1396         SSL_CIPHER *c;
1397         X509_NAME *xn;
1398         int j,i;
1399 #ifndef OPENSSL_NO_COMP
1400         const COMP_METHOD *comp, *expansion;
1401 #endif
1402
1403         if (full)
1404                 {
1405                 int got_a_chain = 0;
1406
1407                 sk=SSL_get_peer_cert_chain(s);
1408                 if (sk != NULL)
1409                         {
1410                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1411
1412                         BIO_printf(bio,"---\nCertificate chain\n");
1413                         for (i=0; i<sk_X509_num(sk); i++)
1414                                 {
1415                                 X509_NAME_oneline(X509_get_subject_name(
1416                                         sk_X509_value(sk,i)),buf,sizeof buf);
1417                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1418                                 X509_NAME_oneline(X509_get_issuer_name(
1419                                         sk_X509_value(sk,i)),buf,sizeof buf);
1420                                 BIO_printf(bio,"   i:%s\n",buf);
1421                                 if (c_showcerts)
1422                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1423                                 }
1424                         }
1425
1426                 BIO_printf(bio,"---\n");
1427                 peer=SSL_get_peer_certificate(s);
1428                 if (peer != NULL)
1429                         {
1430                         BIO_printf(bio,"Server certificate\n");
1431                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1432                                 PEM_write_bio_X509(bio,peer);
1433                         X509_NAME_oneline(X509_get_subject_name(peer),
1434                                 buf,sizeof buf);
1435                         BIO_printf(bio,"subject=%s\n",buf);
1436                         X509_NAME_oneline(X509_get_issuer_name(peer),
1437                                 buf,sizeof buf);
1438                         BIO_printf(bio,"issuer=%s\n",buf);
1439                         }
1440                 else
1441                         BIO_printf(bio,"no peer certificate available\n");
1442
1443                 sk2=SSL_get_client_CA_list(s);
1444                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1445                         {
1446                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1447                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1448                                 {
1449                                 xn=sk_X509_NAME_value(sk2,i);
1450                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1451                                 BIO_write(bio,buf,strlen(buf));
1452                                 BIO_write(bio,"\n",1);
1453                                 }
1454                         }
1455                 else
1456                         {
1457                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1458                         }
1459                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1460                 if (p != NULL)
1461                         {
1462                         /* This works only for SSL 2.  In later protocol
1463                          * versions, the client does not know what other
1464                          * ciphers (in addition to the one to be used
1465                          * in the current connection) the server supports. */
1466
1467                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1468                         j=i=0;
1469                         while (*p)
1470                                 {
1471                                 if (*p == ':')
1472                                         {
1473                                         BIO_write(bio,space,15-j%25);
1474                                         i++;
1475                                         j=0;
1476                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1477                                         }
1478                                 else
1479                                         {
1480                                         BIO_write(bio,p,1);
1481                                         j++;
1482                                         }
1483                                 p++;
1484                                 }
1485                         BIO_write(bio,"\n",1);
1486                         }
1487
1488                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1489                         BIO_number_read(SSL_get_rbio(s)),
1490                         BIO_number_written(SSL_get_wbio(s)));
1491                 }
1492         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1493         c=SSL_get_current_cipher(s);
1494         BIO_printf(bio,"%s, Cipher is %s\n",
1495                 SSL_CIPHER_get_version(c),
1496                 SSL_CIPHER_get_name(c));
1497         if (peer != NULL) {
1498                 EVP_PKEY *pktmp;
1499                 pktmp = X509_get_pubkey(peer);
1500                 BIO_printf(bio,"Server public key is %d bit\n",
1501                                                          EVP_PKEY_bits(pktmp));
1502                 EVP_PKEY_free(pktmp);
1503         }
1504 #ifndef OPENSSL_NO_COMP
1505         comp=SSL_get_current_compression(s);
1506         expansion=SSL_get_current_expansion(s);
1507         BIO_printf(bio,"Compression: %s\n",
1508                 comp ? SSL_COMP_get_name(comp) : "NONE");
1509         BIO_printf(bio,"Expansion: %s\n",
1510                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1511 #endif
1512         SSL_SESSION_print(bio,SSL_get_session(s));
1513         BIO_printf(bio,"---\n");
1514         if (peer != NULL)
1515                 X509_free(peer);
1516         /* flush, or debugging output gets mixed with http response */
1517         BIO_flush(bio);
1518         }
1519