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 <openssl/ocsp.h>
 165 #include <openssl/bn.h>
 166 #include "s_apps.h"
 167 #include "timeouts.h"
 168
 169 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 170 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 171 #undef FIONBIO
 172 #endif
 173
 174 #if defined(OPENSSL_SYS_BEOS_R5)
 175 #include <fcntl.h>
 176 #endif
 177
 178 #undef PROG
 179 #define PROG    s_client_main
 180
 181 /*#define SSL_HOST_NAME "www.netscape.com" */
 182 /*#define SSL_HOST_NAME "193.118.187.102" */
 183 #define SSL_HOST_NAME   "localhost"
 184
 185 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 186
 187 #undef BUFSIZZ
 188 #define BUFSIZZ 1024*8
 189
 190 extern int verify_depth;
 191 extern int verify_error;
 192 extern int verify_return_error;
 193
 194 #ifdef FIONBIO
 195 static int c_nbio=0;
 196 #endif
 197 static int c_Pause=0;
 198 static int c_debug=0;
 199 #ifndef OPENSSL_NO_TLSEXT
 200 static int c_tlsextdebug=0;
 201 static int c_status_req=0;
 202 #endif
 203 static int c_msg=0;
 204 static int c_showcerts=0;
 205
 206 static void sc_usage(void);
 207 static void print_stuff(BIO *berr,SSL *con,int full);
 208 static int ocsp_resp_cb(SSL *s, void *arg);
 209 static BIO *bio_c_out=NULL;
 210 static int c_quiet=0;
 211 static int c_ign_eof=0;
 212
 213 #ifndef OPENSSL_NO_PSK
 214 /* Default PSK identity and key */
 215 static char *psk_identity="Client_identity";
 216 static char *psk_key=NULL; /* by default PSK is not used */
 217
 218 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
 219         unsigned int max_identity_len, unsigned char *psk,
 220         unsigned int max_psk_len)
 221         {
 222         unsigned int psk_len = 0;
 223         int ret;
 224         BIGNUM *bn=NULL;
 225
 226         if (c_debug)
 227                 BIO_printf(bio_c_out, "psk_client_cb\n");
 228         if (!hint)
 229                 {
 230                 /* no ServerKeyExchange message*/
 231                 if (c_debug)
 232                         BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n");
 233                 }
 234         else if (c_debug)
 235                 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
 236
 237         /* lookup PSK identity and PSK key based on the given identity hint here */
 238         ret = BIO_snprintf(identity, max_identity_len, psk_identity);
 239         if (ret < 0 || (unsigned int)ret > max_identity_len)
 240                 goto out_err;
 241         if (c_debug)
 242                 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret);
 243         ret=BN_hex2bn(&bn, psk_key);
 244         if (!ret)
 245                 {
 246                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 247                 if (bn)
 248                         BN_free(bn);
 249                 return 0;
 250                 }
 251
 252         if ((unsigned int)BN_num_bytes(bn) > max_psk_len)
 253                 {
 254                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 255                         max_psk_len, BN_num_bytes(bn));
 256                 BN_free(bn);
 257                 return 0;
 258                 }
 259
 260         psk_len=BN_bn2bin(bn, psk);
 261         BN_free(bn);
 262         if (psk_len == 0)
 263                 goto out_err;
 264
 265         if (c_debug)
 266                 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
 267
 268         return psk_len;
 269  out_err:
 270         if (c_debug)
 271                 BIO_printf(bio_err, "Error in PSK client callback\n");
 272         return 0;
 273         }
 274 #endif
 275
 276 static void sc_usage(void)
 277         {
 278         BIO_printf(bio_err,"usage: s_client args\n");
 279         BIO_printf(bio_err,"\n");
 280         BIO_printf(bio_err," -host host     - use -connect instead\n");
 281         BIO_printf(bio_err," -port port     - use -connect instead\n");
 282         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 283
 284         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 285         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 286         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 287         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 288         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 289         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 290         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 291         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 292         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 293         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 294         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 295         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 296         BIO_printf(bio_err," -debug        - extra output\n");
 297 #ifdef WATT32
 298         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 299 #endif
 300         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 301         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 302         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 303 #ifdef FIONBIO
 304         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 305 #endif
 306         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 307         BIO_printf(bio_err," -quiet        - no s_client output\n");
 308         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 309 #ifndef OPENSSL_NO_PSK
 310         BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
 311         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 312 #endif
 313         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 314         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 315         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 316         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 317         BIO_printf(bio_err," -mtu          - set the MTU\n");
 318         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 319         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 320         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 321         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 322         BIO_printf(bio_err,"                 command to see what is available\n");
 323         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 324         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 325         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 326         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", and \"ftp\" are supported.\n");
 327 #ifndef OPENSSL_NO_ENGINE
 328         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 329 #endif
 330         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 331         BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
 332         BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
 333 #ifndef OPENSSL_NO_TLSEXT
 334         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 335         BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
 336         BIO_printf(bio_err," -status           - request certificate status from server\n");
 337         BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
 338 #endif
 339         }
 340
 341 #ifndef OPENSSL_NO_TLSEXT
 342
 343 /* This is a context that we pass to callbacks */
 344 typedef struct tlsextctx_st {
 345    BIO * biodebug;
 346    int ack;
 347 } tlsextctx;
 348
 349
 350 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 351         {
 352         tlsextctx * p = (tlsextctx *) arg;
 353         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 354         if (SSL_get_servername_type(s) != -1)
 355                 p->ack = !SSL_session_reused(s) && hn != NULL;
 356         else
 357                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 358
 359         return SSL_TLSEXT_ERR_OK;
 360         }
 361 #endif
 362
 363 enum
 364 {
 365         PROTO_OFF       = 0,
 366         PROTO_SMTP,
 367         PROTO_POP3,
 368         PROTO_IMAP,
 369         PROTO_FTP
 370 };
 371
 372 int MAIN(int, char **);
 373
 374 int MAIN(int argc, char **argv)
 375         {
 376         int off=0;
 377         SSL *con=NULL;
 378         X509_STORE *store = NULL;
 379         int s,k,width,state=0;
 380         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 381         int cbuf_len,cbuf_off;
 382         int sbuf_len,sbuf_off;
 383         fd_set readfds,writefds;
 384         short port=PORT;
 385         int full_log=1;
 386         char *host=SSL_HOST_NAME;
 387         char *cert_file=NULL,*key_file=NULL;
 388         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 389         char *passarg = NULL, *pass = NULL;
 390         X509 *cert = NULL;
 391         EVP_PKEY *key = NULL;
 392         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 393         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 394         int crlf=0;
 395         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 396         SSL_CTX *ctx=NULL;
 397         int ret=1,in_init=1,i,nbio_test=0;
 398         int starttls_proto = PROTO_OFF;
 399         int prexit = 0, vflags = 0;
 400         const SSL_METHOD *meth=NULL;
 401         int socket_type=SOCK_STREAM;
 402         BIO *sbio;
 403         char *inrand=NULL;
 404         int mbuf_len=0;
 405 #ifndef OPENSSL_NO_ENGINE
 406         char *engine_id=NULL;
 407         ENGINE *e=NULL;
 408 #endif
 409 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
 410         struct timeval tv;
 411 #if defined(OPENSSL_SYS_BEOS_R5)
 412         int stdin_set = 0;
 413 #endif
 414 #endif
 415
 416 #ifndef OPENSSL_NO_TLSEXT
 417         char *servername = NULL;
 418         tlsextctx tlsextcbp =
 419         {NULL,0};
 420 #endif
 421         char *sess_in = NULL;
 422         char *sess_out = NULL;
 423         struct sockaddr peer;
 424         int peerlen = sizeof(peer);
 425         int enable_timeouts = 0 ;
 426         long socket_mtu = 0;
 427
 428 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 429         meth=SSLv23_client_method();
 430 #elif !defined(OPENSSL_NO_SSL3)
 431         meth=SSLv3_client_method();
 432 #elif !defined(OPENSSL_NO_SSL2)
 433         meth=SSLv2_client_method();
 434 #endif
 435
 436         apps_startup();
 437         c_Pause=0;
 438         c_quiet=0;
 439         c_ign_eof=0;
 440         c_debug=0;
 441         c_msg=0;
 442         c_showcerts=0;
 443
 444         if (bio_err == NULL)
 445                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 446
 447         if (!load_config(bio_err, NULL))
 448                 goto end;
 449
 450         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 451                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 452                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 453                 {
 454                 BIO_printf(bio_err,"out of memory\n");
 455                 goto end;
 456                 }
 457
 458         verify_depth=0;
 459         verify_error=X509_V_OK;
 460 #ifdef FIONBIO
 461         c_nbio=0;
 462 #endif
 463
 464         argc--;
 465         argv++;
 466         while (argc >= 1)
 467                 {
 468                 if      (strcmp(*argv,"-host") == 0)
 469                         {
 470                         if (--argc < 1) goto bad;
 471                         host= *(++argv);
 472                         }
 473                 else if (strcmp(*argv,"-port") == 0)
 474                         {
 475                         if (--argc < 1) goto bad;
 476                         port=atoi(*(++argv));
 477                         if (port == 0) goto bad;
 478                         }
 479                 else if (strcmp(*argv,"-connect") == 0)
 480                         {
 481                         if (--argc < 1) goto bad;
 482                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 483                                 goto bad;
 484                         }
 485                 else if (strcmp(*argv,"-verify") == 0)
 486                         {
 487                         verify=SSL_VERIFY_PEER;
 488                         if (--argc < 1) goto bad;
 489                         verify_depth=atoi(*(++argv));
 490                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 491                         }
 492                 else if (strcmp(*argv,"-cert") == 0)
 493                         {
 494                         if (--argc < 1) goto bad;
 495                         cert_file= *(++argv);
 496                         }
 497                 else if (strcmp(*argv,"-sess_out") == 0)
 498                         {
 499                         if (--argc < 1) goto bad;
 500                         sess_out = *(++argv);
 501                         }
 502                 else if (strcmp(*argv,"-sess_in") == 0)
 503                         {
 504                         if (--argc < 1) goto bad;
 505                         sess_in = *(++argv);
 506                         }
 507                 else if (strcmp(*argv,"-certform") == 0)
 508                         {
 509                         if (--argc < 1) goto bad;
 510                         cert_format = str2fmt(*(++argv));
 511                         }
 512                 else if (strcmp(*argv,"-crl_check") == 0)
 513                         vflags |= X509_V_FLAG_CRL_CHECK;
 514                 else if (strcmp(*argv,"-crl_check_all") == 0)
 515                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 516                 else if (strcmp(*argv,"-verify_return_error") == 0)
 517                         verify_return_error = 1;
 518                 else if (strcmp(*argv,"-prexit") == 0)
 519                         prexit=1;
 520                 else if (strcmp(*argv,"-crlf") == 0)
 521                         crlf=1;
 522                 else if (strcmp(*argv,"-quiet") == 0)
 523                         {
 524                         c_quiet=1;
 525                         c_ign_eof=1;
 526                         }
 527                 else if (strcmp(*argv,"-ign_eof") == 0)
 528                         c_ign_eof=1;
 529                 else if (strcmp(*argv,"-pause") == 0)
 530                         c_Pause=1;
 531                 else if (strcmp(*argv,"-debug") == 0)
 532                         c_debug=1;
 533 #ifndef OPENSSL_NO_TLSEXT
 534                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 535                         c_tlsextdebug=1;
 536                 else if (strcmp(*argv,"-status") == 0)
 537                         c_status_req=1;
 538 #endif
 539 #ifdef WATT32
 540                 else if (strcmp(*argv,"-wdebug") == 0)
 541                         dbug_init();
 542 #endif
 543                 else if (strcmp(*argv,"-msg") == 0)
 544                         c_msg=1;
 545                 else if (strcmp(*argv,"-showcerts") == 0)
 546                         c_showcerts=1;
 547                 else if (strcmp(*argv,"-nbio_test") == 0)
 548                         nbio_test=1;
 549                 else if (strcmp(*argv,"-state") == 0)
 550                         state=1;
 551 #ifndef OPENSSL_NO_PSK
 552                 else if (strcmp(*argv,"-psk_identity") == 0)
 553                         {
 554                         if (--argc < 1) goto bad;
 555                         psk_identity=*(++argv);
 556                         }
 557                 else if (strcmp(*argv,"-psk") == 0)
 558                         {
 559                         size_t j;
 560
 561                         if (--argc < 1) goto bad;
 562                         psk_key=*(++argv);
 563                         for (j = 0; j < strlen(psk_key); j++)
 564                                 {
 565                                 if (isxdigit((int)psk_key[j]))
 566                                         continue;
 567                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
 568                                 goto bad;
 569                                 }
 570                         }
 571 #endif
 572 #ifndef OPENSSL_NO_SSL2
 573                 else if (strcmp(*argv,"-ssl2") == 0)
 574                         meth=SSLv2_client_method();
 575 #endif
 576 #ifndef OPENSSL_NO_SSL3
 577                 else if (strcmp(*argv,"-ssl3") == 0)
 578                         meth=SSLv3_client_method();
 579 #endif
 580 #ifndef OPENSSL_NO_TLS1
 581                 else if (strcmp(*argv,"-tls1") == 0)
 582                         meth=TLSv1_client_method();
 583 #endif
 584 #ifndef OPENSSL_NO_DTLS1
 585                 else if (strcmp(*argv,"-dtls1") == 0)
 586                         {
 587                         meth=DTLSv1_client_method();
 588                         socket_type=SOCK_DGRAM;
 589                         }
 590                 else if (strcmp(*argv,"-timeout") == 0)
 591                         enable_timeouts=1;
 592                 else if (strcmp(*argv,"-mtu") == 0)
 593                         {
 594                         if (--argc < 1) goto bad;
 595                         socket_mtu = atol(*(++argv));
 596                         }
 597 #endif
 598                 else if (strcmp(*argv,"-bugs") == 0)
 599                         bugs=1;
 600                 else if (strcmp(*argv,"-keyform") == 0)
 601                         {
 602                         if (--argc < 1) goto bad;
 603                         key_format = str2fmt(*(++argv));
 604                         }
 605                 else if (strcmp(*argv,"-pass") == 0)
 606                         {
 607                         if (--argc < 1) goto bad;
 608                         passarg = *(++argv);
 609                         }
 610                 else if (strcmp(*argv,"-key") == 0)
 611                         {
 612                         if (--argc < 1) goto bad;
 613                         key_file= *(++argv);
 614                         }
 615                 else if (strcmp(*argv,"-reconnect") == 0)
 616                         {
 617                         reconnect=5;
 618                         }
 619                 else if (strcmp(*argv,"-CApath") == 0)
 620                         {
 621                         if (--argc < 1) goto bad;
 622                         CApath= *(++argv);
 623                         }
 624                 else if (strcmp(*argv,"-CAfile") == 0)
 625                         {
 626                         if (--argc < 1) goto bad;
 627                         CAfile= *(++argv);
 628                         }
 629                 else if (strcmp(*argv,"-no_tls1") == 0)
 630                         off|=SSL_OP_NO_TLSv1;
 631                 else if (strcmp(*argv,"-no_ssl3") == 0)
 632                         off|=SSL_OP_NO_SSLv3;
 633                 else if (strcmp(*argv,"-no_ssl2") == 0)
 634                         off|=SSL_OP_NO_SSLv2;
 635                 else if (strcmp(*argv,"-no_comp") == 0)
 636                         { off|=SSL_OP_NO_COMPRESSION; }
 637 #ifndef OPENSSL_NO_TLSEXT
 638                 else if (strcmp(*argv,"-no_ticket") == 0)
 639                         { off|=SSL_OP_NO_TICKET; }
 640 #endif
 641                 else if (strcmp(*argv,"-serverpref") == 0)
 642                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 643                 else if (strcmp(*argv,"-cipher") == 0)
 644                         {
 645                         if (--argc < 1) goto bad;
 646                         cipher= *(++argv);
 647                         }
 648 #ifdef FIONBIO
 649                 else if (strcmp(*argv,"-nbio") == 0)
 650                         { c_nbio=1; }
 651 #endif
 652                 else if (strcmp(*argv,"-starttls") == 0)
 653                         {
 654                         if (--argc < 1) goto bad;
 655                         ++argv;
 656                         if (strcmp(*argv,"smtp") == 0)
 657                                 starttls_proto = PROTO_SMTP;
 658                         else if (strcmp(*argv,"pop3") == 0)
 659                                 starttls_proto = PROTO_POP3;
 660                         else if (strcmp(*argv,"imap") == 0)
 661                                 starttls_proto = PROTO_IMAP;
 662                         else if (strcmp(*argv,"ftp") == 0)
 663                                 starttls_proto = PROTO_FTP;
 664                         else
 665                                 goto bad;
 666                         }
 667 #ifndef OPENSSL_NO_ENGINE
 668                 else if (strcmp(*argv,"-engine") == 0)
 669                         {
 670                         if (--argc < 1) goto bad;
 671                         engine_id = *(++argv);
 672                         }
 673 #endif
 674                 else if (strcmp(*argv,"-rand") == 0)
 675                         {
 676                         if (--argc < 1) goto bad;
 677                         inrand= *(++argv);
 678                         }
 679 #ifndef OPENSSL_NO_TLSEXT
 680                 else if (strcmp(*argv,"-servername") == 0)
 681                         {
 682                         if (--argc < 1) goto bad;
 683                         servername= *(++argv);
 684                         /* meth=TLSv1_client_method(); */
 685                         }
 686 #endif
 687                 else
 688                         {
 689                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 690                         badop=1;
 691                         break;
 692                         }
 693                 argc--;
 694                 argv++;
 695                 }
 696         if (badop)
 697                 {
 698 bad:
 699                 sc_usage();
 700                 goto end;
 701                 }
 702
 703         OpenSSL_add_ssl_algorithms();
 704         SSL_load_error_strings();
 705
 706 #ifndef OPENSSL_NO_ENGINE
 707         e = setup_engine(bio_err, engine_id, 1);
 708 #endif
 709         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
 710                 {
 711                 BIO_printf(bio_err, "Error getting password\n");
 712                 goto end;
 713                 }
 714
 715         if (key_file == NULL)
 716                 key_file = cert_file;
 717
 718
 719         if (key_file)
 720
 721                 {
 722
 723                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
 724                                "client certificate private key file");
 725                 if (!key)
 726                         {
 727                         ERR_print_errors(bio_err);
 728                         goto end;
 729                         }
 730
 731                 }
 732
 733         if (cert_file)
 734
 735                 {
 736                 cert = load_cert(bio_err,cert_file,cert_format,
 737                                 NULL, e, "client certificate file");
 738
 739                 if (!cert)
 740                         {
 741                         ERR_print_errors(bio_err);
 742                         goto end;
 743                         }
 744                 }
 745
 746         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 747                 && !RAND_status())
 748                 {
 749                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 750                 }
 751         if (inrand != NULL)
 752                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 753                         app_RAND_load_files(inrand));
 754
 755         if (bio_c_out == NULL)
 756                 {
 757                 if (c_quiet && !c_debug && !c_msg)
 758                         {
 759                         bio_c_out=BIO_new(BIO_s_null());
 760                         }
 761                 else
 762                         {
 763                         if (bio_c_out == NULL)
 764                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 765                         }
 766                 }
 767
 768         ctx=SSL_CTX_new(meth);
 769         if (ctx == NULL)
 770                 {
 771                 ERR_print_errors(bio_err);
 772                 goto end;
 773                 }
 774
 775 #ifndef OPENSSL_NO_PSK
 776         if (psk_key != NULL)
 777                 {
 778                 if (c_debug)
 779                         BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
 780                 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
 781                 }
 782 #endif
 783         if (bugs)
 784                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 785         else
 786                 SSL_CTX_set_options(ctx,off);
 787         /* DTLS: partial reads end up discarding unread UDP bytes :-(
 788          * Setting read ahead solves this problem.
 789          */
 790         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
 791
 792         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 793         if (cipher != NULL)
 794                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 795                 BIO_printf(bio_err,"error setting cipher list\n");
 796                 ERR_print_errors(bio_err);
 797                 goto end;
 798         }
 799 #if 0
 800         else
 801                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 802 #endif
 803
 804         SSL_CTX_set_verify(ctx,verify,verify_callback);
 805         if (!set_cert_key_stuff(ctx,cert,key))
 806                 goto end;
 807
 808         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 809                 (!SSL_CTX_set_default_verify_paths(ctx)))
 810                 {
 811                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 812                 ERR_print_errors(bio_err);
 813                 /* goto end; */
 814                 }
 815
 816         store = SSL_CTX_get_cert_store(ctx);
 817         X509_STORE_set_flags(store, vflags);
 818 #ifndef OPENSSL_NO_TLSEXT
 819         if (servername != NULL)
 820                 {
 821                 tlsextcbp.biodebug = bio_err;
 822                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
 823                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
 824                 }
 825 #endif
 826
 827         con=SSL_new(ctx);
 828         if (sess_in)
 829                 {
 830                 SSL_SESSION *sess;
 831                 BIO *stmp = BIO_new_file(sess_in, "r");
 832                 if (!stmp)
 833                         {
 834                         BIO_printf(bio_err, "Can't open session file %s\n",
 835                                                 sess_in);
 836                         ERR_print_errors(bio_err);
 837                         goto end;
 838                         }
 839                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
 840                 BIO_free(stmp);
 841                 if (!sess)
 842                         {
 843                         BIO_printf(bio_err, "Can't open session file %s\n",
 844                                                 sess_in);
 845                         ERR_print_errors(bio_err);
 846                         goto end;
 847                         }
 848                 SSL_set_session(con, sess);
 849                 SSL_SESSION_free(sess);
 850                 }
 851 #ifndef OPENSSL_NO_TLSEXT
 852         if (servername != NULL)
 853                 {
 854                 if (!SSL_set_tlsext_host_name(con,servername))
 855                         {
 856                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
 857                         ERR_print_errors(bio_err);
 858                         goto end;
 859                         }
 860                 }
 861 #endif
 862 #ifndef OPENSSL_NO_KRB5
 863         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 864                 {
 865                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 866                 }
 867 #endif  /* OPENSSL_NO_KRB5  */
 868 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 869 #if 0
 870 #ifdef TLSEXT_TYPE_opaque_prf_input
 871         SSL_set_tlsext_opaque_prf_input(con, "Test client", 11);
 872 #endif
 873 #endif
 874
 875 re_start:
 876
 877         if (init_client(&s,host,port,socket_type) == 0)
 878                 {
 879                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 880                 SHUTDOWN(s);
 881                 goto end;
 882                 }
 883         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 884
 885 #ifdef FIONBIO
 886         if (c_nbio)
 887                 {
 888                 unsigned long l=1;
 889                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 890                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 891                         {
 892                         ERR_print_errors(bio_err);
 893                         goto end;
 894                         }
 895                 }
 896 #endif
 897         if (c_Pause & 0x01) con->debug=1;
 898
 899         if ( SSL_version(con) == DTLS1_VERSION)
 900                 {
 901                 struct timeval timeout;
 902
 903                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
 904                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
 905                         {
 906                         BIO_printf(bio_err, "getsockname:errno=%d\n",
 907                                 get_last_socket_error());
 908                         SHUTDOWN(s);
 909                         goto end;
 910                         }
 911
 912                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
 913
 914                 if (enable_timeouts)
 915                         {
 916                         timeout.tv_sec = 0;
 917                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
 918                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
 919
 920                         timeout.tv_sec = 0;
 921                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
 922                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
 923                         }
 924
 925                 if (socket_mtu > 0)
 926                         {
 927                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
 928                         SSL_set_mtu(con, socket_mtu);
 929                         }
 930                 else
 931                         /* want to do MTU discovery */
 932                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
 933                 }
 934         else
 935                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
 936
 937
 938
 939         if (nbio_test)
 940                 {
 941                 BIO *test;
 942
 943                 test=BIO_new(BIO_f_nbio_test());
 944                 sbio=BIO_push(test,sbio);
 945                 }
 946
 947         if (c_debug)
 948                 {
 949                 con->debug=1;
 950                 BIO_set_callback(sbio,bio_dump_callback);
 951                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
 952                 }
 953         if (c_msg)
 954                 {
 955                 SSL_set_msg_callback(con, msg_cb);
 956                 SSL_set_msg_callback_arg(con, bio_c_out);
 957                 }
 958 #ifndef OPENSSL_NO_TLSEXT
 959         if (c_tlsextdebug)
 960                 {
 961                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
 962                 SSL_set_tlsext_debug_arg(con, bio_c_out);
 963                 }
 964         if (c_status_req)
 965                 {
 966                 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
 967                 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
 968                 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
 969 #if 0
 970 {
 971 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
 972 OCSP_RESPID *id = OCSP_RESPID_new();
 973 id->value.byKey = ASN1_OCTET_STRING_new();
 974 id->type = V_OCSP_RESPID_KEY;
 975 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
 976 sk_OCSP_RESPID_push(ids, id);
 977 SSL_set_tlsext_status_ids(con, ids);
 978 }
 979 #endif
 980                 }
 981 #endif
 982
 983         SSL_set_bio(con,sbio,sbio);
 984         SSL_set_connect_state(con);
 985
 986         /* ok, lets connect */
 987         width=SSL_get_fd(con)+1;
 988
 989         read_tty=1;
 990         write_tty=0;
 991         tty_on=0;
 992         read_ssl=1;
 993         write_ssl=1;
 994
 995         cbuf_len=0;
 996         cbuf_off=0;
 997         sbuf_len=0;
 998         sbuf_off=0;
 999
1000         /* This is an ugly hack that does a lot of assumptions */
1001         /* We do have to handle multi-line responses which may come
1002            in a single packet or not. We therefore have to use
1003            BIO_gets() which does need a buffering BIO. So during
1004            the initial chitchat we do push a buffering BIO into the
1005            chain that is removed again later on to not disturb the
1006            rest of the s_client operation. */
1007         if (starttls_proto == PROTO_SMTP)
1008                 {
1009                 int foundit=0;
1010                 BIO *fbio = BIO_new(BIO_f_buffer());
1011                 BIO_push(fbio, sbio);
1012                 /* wait for multi-line response to end from SMTP */
1013                 do
1014                         {
1015                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1016                         }
1017                 while (mbuf_len>3 && mbuf[3]=='-');
1018                 /* STARTTLS command requires EHLO... */
1019                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
1020                 (void)BIO_flush(fbio);
1021                 /* wait for multi-line response to end EHLO SMTP response */
1022                 do
1023                         {
1024                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1025                         if (strstr(mbuf,"STARTTLS"))
1026                                 foundit=1;
1027                         }
1028                 while (mbuf_len>3 && mbuf[3]=='-');
1029                 (void)BIO_flush(fbio);
1030                 BIO_pop(fbio);
1031                 BIO_free(fbio);
1032                 if (!foundit)
1033                         BIO_printf(bio_err,
1034                                    "didn't found starttls in server response,"
1035                                    " try anyway...\n");
1036                 BIO_printf(sbio,"STARTTLS\r\n");
1037                 BIO_read(sbio,sbuf,BUFSIZZ);
1038                 }
1039         else if (starttls_proto == PROTO_POP3)
1040                 {
1041                 BIO_read(sbio,mbuf,BUFSIZZ);
1042                 BIO_printf(sbio,"STLS\r\n");
1043                 BIO_read(sbio,sbuf,BUFSIZZ);
1044                 }
1045         else if (starttls_proto == PROTO_IMAP)
1046                 {
1047                 int foundit=0;
1048                 BIO *fbio = BIO_new(BIO_f_buffer());
1049                 BIO_push(fbio, sbio);
1050                 BIO_gets(fbio,mbuf,BUFSIZZ);
1051                 /* STARTTLS command requires CAPABILITY... */
1052                 BIO_printf(fbio,". CAPABILITY\r\n");
1053                 (void)BIO_flush(fbio);
1054                 /* wait for multi-line CAPABILITY response */
1055                 do
1056                         {
1057                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1058                         if (strstr(mbuf,"STARTTLS"))
1059                                 foundit=1;
1060                         }
1061                 while (mbuf_len>3 && mbuf[0]!='.');
1062                 (void)BIO_flush(fbio);
1063                 BIO_pop(fbio);
1064                 BIO_free(fbio);
1065                 if (!foundit)
1066                         BIO_printf(bio_err,
1067                                    "didn't found STARTTLS in server response,"
1068                                    " try anyway...\n");
1069                 BIO_printf(sbio,". STARTTLS\r\n");
1070                 BIO_read(sbio,sbuf,BUFSIZZ);
1071                 }
1072         else if (starttls_proto == PROTO_FTP)
1073                 {
1074                 BIO *fbio = BIO_new(BIO_f_buffer());
1075                 BIO_push(fbio, sbio);
1076                 /* wait for multi-line response to end from FTP */
1077                 do
1078                         {
1079                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1080                         }
1081                 while (mbuf_len>3 && mbuf[3]=='-');
1082                 (void)BIO_flush(fbio);
1083                 BIO_pop(fbio);
1084                 BIO_free(fbio);
1085                 BIO_printf(sbio,"AUTH TLS\r\n");
1086                 BIO_read(sbio,sbuf,BUFSIZZ);
1087                 }
1088
1089         for (;;)
1090                 {
1091                 FD_ZERO(&readfds);
1092                 FD_ZERO(&writefds);
1093
1094                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1095                         {
1096                         in_init=1;
1097                         tty_on=0;
1098                         }
1099                 else
1100                         {
1101                         tty_on=1;
1102                         if (in_init)
1103                                 {
1104                                 in_init=0;
1105 #if 0 /* This test doesn't really work as intended (needs to be fixed) */
1106 #ifndef OPENSSL_NO_TLSEXT
1107                                 if (servername != NULL && !SSL_session_reused(con))
1108                                         {
1109                                         BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
1110                                         }
1111 #endif
1112 #endif
1113                                 if (sess_out)
1114                                         {
1115                                         BIO *stmp = BIO_new_file(sess_out, "w");
1116                                         if (stmp)
1117                                                 {
1118                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1119                                                 BIO_free(stmp);
1120                                                 }
1121                                         else
1122                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1123                                         }
1124                                 print_stuff(bio_c_out,con,full_log);
1125                                 if (full_log > 0) full_log--;
1126
1127                                 if (starttls_proto)
1128                                         {
1129                                         BIO_printf(bio_err,"%s",mbuf);
1130                                         /* We don't need to know any more */
1131                                         starttls_proto = PROTO_OFF;
1132                                         }
1133
1134                                 if (reconnect)
1135                                         {
1136                                         reconnect--;
1137                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1138                                         SSL_shutdown(con);
1139                                         SSL_set_connect_state(con);
1140                                         SHUTDOWN(SSL_get_fd(con));
1141                                         goto re_start;
1142                                         }
1143                                 }
1144                         }
1145
1146                 ssl_pending = read_ssl && SSL_pending(con);
1147
1148                 if (!ssl_pending)
1149                         {
1150 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
1151                         if (tty_on)
1152                                 {
1153                                 if (read_tty)  openssl_fdset(fileno(stdin),&readfds);
1154                                 if (write_tty) openssl_fdset(fileno(stdout),&writefds);
1155                                 }
1156                         if (read_ssl)
1157                                 openssl_fdset(SSL_get_fd(con),&readfds);
1158                         if (write_ssl)
1159                                 openssl_fdset(SSL_get_fd(con),&writefds);
1160 #else
1161                         if(!tty_on || !write_tty) {
1162                                 if (read_ssl)
1163                                         openssl_fdset(SSL_get_fd(con),&readfds);
1164                                 if (write_ssl)
1165                                         openssl_fdset(SSL_get_fd(con),&writefds);
1166                         }
1167 #endif
1168 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1169                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1170
1171                         /* Note: under VMS with SOCKETSHR the second parameter
1172                          * is currently of type (int *) whereas under other
1173                          * systems it is (void *) if you don't have a cast it
1174                          * will choke the compiler: if you do have a cast then
1175                          * you can either go for (int *) or (void *).
1176                          */
1177 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1178                         /* Under Windows/DOS we make the assumption that we can
1179                          * always write to the tty: therefore if we need to
1180                          * write to the tty we just fall through. Otherwise
1181                          * we timeout the select every second and see if there
1182                          * are any keypresses. Note: this is a hack, in a proper
1183                          * Windows application we wouldn't do this.
1184                          */
1185                         i=0;
1186                         if(!write_tty) {
1187                                 if(read_tty) {
1188                                         tv.tv_sec = 1;
1189                                         tv.tv_usec = 0;
1190                                         i=select(width,(void *)&readfds,(void *)&writefds,
1191                                                  NULL,&tv);
1192 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1193                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1194 #else
1195                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1196 #endif
1197                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1198                                          NULL,NULL);
1199                         }
1200 #elif defined(OPENSSL_SYS_NETWARE)
1201                         if(!write_tty) {
1202                                 if(read_tty) {
1203                                         tv.tv_sec = 1;
1204                                         tv.tv_usec = 0;
1205                                         i=select(width,(void *)&readfds,(void *)&writefds,
1206                                                 NULL,&tv);
1207                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1208                                         NULL,NULL);
1209                         }
1210 #elif defined(OPENSSL_SYS_BEOS_R5)
1211                         /* Under BeOS-R5 the situation is similar to DOS */
1212                         i=0;
1213                         stdin_set = 0;
1214                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1215                         if(!write_tty) {
1216                                 if(read_tty) {
1217                                         tv.tv_sec = 1;
1218                                         tv.tv_usec = 0;
1219                                         i=select(width,(void *)&readfds,(void *)&writefds,
1220                                                  NULL,&tv);
1221                                         if (read(fileno(stdin), sbuf, 0) >= 0)
1222                                                 stdin_set = 1;
1223                                         if (!i && (stdin_set != 1 || !read_tty))
1224                                                 continue;
1225                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1226                                          NULL,NULL);
1227                         }
1228                         (void)fcntl(fileno(stdin), F_SETFL, 0);
1229 #else
1230                         i=select(width,(void *)&readfds,(void *)&writefds,
1231                                  NULL,NULL);
1232 #endif
1233                         if ( i < 0)
1234                                 {
1235                                 BIO_printf(bio_err,"bad select %d\n",
1236                                 get_last_socket_error());
1237                                 goto shut;
1238                                 /* goto end; */
1239                                 }
1240                         }
1241
1242                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1243                         {
1244                         k=SSL_write(con,&(cbuf[cbuf_off]),
1245                                 (unsigned int)cbuf_len);
1246                         switch (SSL_get_error(con,k))
1247                                 {
1248                         case SSL_ERROR_NONE:
1249                                 cbuf_off+=k;
1250                                 cbuf_len-=k;
1251                                 if (k <= 0) goto end;
1252                                 /* we have done a  write(con,NULL,0); */
1253                                 if (cbuf_len <= 0)
1254                                         {
1255                                         read_tty=1;
1256                                         write_ssl=0;
1257                                         }
1258                                 else /* if (cbuf_len > 0) */
1259                                         {
1260                                         read_tty=0;
1261                                         write_ssl=1;
1262                                         }
1263                                 break;
1264                         case SSL_ERROR_WANT_WRITE:
1265                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1266                                 write_ssl=1;
1267                                 read_tty=0;
1268                                 break;
1269                         case SSL_ERROR_WANT_READ:
1270                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1271                                 write_tty=0;
1272                                 read_ssl=1;
1273                                 write_ssl=0;
1274                                 break;
1275                         case SSL_ERROR_WANT_X509_LOOKUP:
1276                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1277                                 break;
1278                         case SSL_ERROR_ZERO_RETURN:
1279                                 if (cbuf_len != 0)
1280                                         {
1281                                         BIO_printf(bio_c_out,"shutdown\n");
1282                                         ret = 0;
1283                                         goto shut;
1284                                         }
1285                                 else
1286                                         {
1287                                         read_tty=1;
1288                                         write_ssl=0;
1289                                         break;
1290                                         }
1291
1292                         case SSL_ERROR_SYSCALL:
1293                                 if ((k != 0) || (cbuf_len != 0))
1294                                         {
1295                                         BIO_printf(bio_err,"write:errno=%d\n",
1296                                                 get_last_socket_error());
1297                                         goto shut;
1298                                         }
1299                                 else
1300                                         {
1301                                         read_tty=1;
1302                                         write_ssl=0;
1303                                         }
1304                                 break;
1305                         case SSL_ERROR_SSL:
1306                                 ERR_print_errors(bio_err);
1307                                 goto shut;
1308                                 }
1309                         }
1310 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1311                 /* Assume Windows/DOS/BeOS can always write */
1312                 else if (!ssl_pending && write_tty)
1313 #else
1314                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1315 #endif
1316                         {
1317 #ifdef CHARSET_EBCDIC
1318                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1319 #endif
1320                         i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
1321
1322                         if (i <= 0)
1323                                 {
1324                                 BIO_printf(bio_c_out,"DONE\n");
1325                                 ret = 0;
1326                                 goto shut;
1327                                 /* goto end; */
1328                                 }
1329
1330                         sbuf_len-=i;;
1331                         sbuf_off+=i;
1332                         if (sbuf_len <= 0)
1333                                 {
1334                                 read_ssl=1;
1335                                 write_tty=0;
1336                                 }
1337                         }
1338                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1339                         {
1340 #ifdef RENEG
1341 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1342 #endif
1343 #if 1
1344                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1345 #else
1346 /* Demo for pending and peek :-) */
1347                         k=SSL_read(con,sbuf,16);
1348 { char zbuf[10240];
1349 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1350 }
1351 #endif
1352
1353                         switch (SSL_get_error(con,k))
1354                                 {
1355                         case SSL_ERROR_NONE:
1356                                 if (k <= 0)
1357                                         goto end;
1358                                 sbuf_off=0;
1359                                 sbuf_len=k;
1360
1361                                 read_ssl=0;
1362                                 write_tty=1;
1363                                 break;
1364                         case SSL_ERROR_WANT_WRITE:
1365                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1366                                 write_ssl=1;
1367                                 read_tty=0;
1368                                 break;
1369                         case SSL_ERROR_WANT_READ:
1370                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1371                                 write_tty=0;
1372                                 read_ssl=1;
1373                                 if ((read_tty == 0) && (write_ssl == 0))
1374                                         write_ssl=1;
1375                                 break;
1376                         case SSL_ERROR_WANT_X509_LOOKUP:
1377                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1378                                 break;
1379                         case SSL_ERROR_SYSCALL:
1380                                 ret=get_last_socket_error();
1381                                 BIO_printf(bio_err,"read:errno=%d\n",ret);
1382                                 goto shut;
1383                         case SSL_ERROR_ZERO_RETURN:
1384                                 BIO_printf(bio_c_out,"closed\n");
1385                                 ret=0;
1386                                 goto shut;
1387                         case SSL_ERROR_SSL:
1388                                 ERR_print_errors(bio_err);
1389                                 goto shut;
1390                                 /* break; */
1391                                 }
1392                         }
1393
1394 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1395 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1396                 else if (_kbhit())
1397 #else
1398                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1399 #endif
1400 #elif defined (OPENSSL_SYS_NETWARE)
1401                 else if (_kbhit())
1402 #elif defined(OPENSSL_SYS_BEOS_R5)
1403                 else if (stdin_set)
1404 #else
1405                 else if (FD_ISSET(fileno(stdin),&readfds))
1406 #endif
1407                         {
1408                         if (crlf)
1409                                 {
1410                                 int j, lf_num;
1411
1412                                 i=raw_read_stdin(cbuf,BUFSIZZ/2);
1413                                 lf_num = 0;
1414                                 /* both loops are skipped when i <= 0 */
1415                                 for (j = 0; j < i; j++)
1416                                         if (cbuf[j] == '\n')
1417                                                 lf_num++;
1418                                 for (j = i-1; j >= 0; j--)
1419                                         {
1420                                         cbuf[j+lf_num] = cbuf[j];
1421                                         if (cbuf[j] == '\n')
1422                                                 {
1423                                                 lf_num--;
1424                                                 i++;
1425                                                 cbuf[j+lf_num] = '\r';
1426                                                 }
1427                                         }
1428                                 assert(lf_num == 0);
1429                                 }
1430                         else
1431                                 i=raw_read_stdin(cbuf,BUFSIZZ);
1432
1433                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1434                                 {
1435                                 BIO_printf(bio_err,"DONE\n");
1436                                 ret=0;
1437                                 goto shut;
1438                                 }
1439
1440                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1441                                 {
1442                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1443                                 SSL_renegotiate(con);
1444                                 cbuf_len=0;
1445                                 }
1446                         else
1447                                 {
1448                                 cbuf_len=i;
1449                                 cbuf_off=0;
1450 #ifdef CHARSET_EBCDIC
1451                                 ebcdic2ascii(cbuf, cbuf, i);
1452 #endif
1453                                 }
1454
1455                         write_ssl=1;
1456                         read_tty=0;
1457                         }
1458                 }
1459
1460         ret=0;
1461 shut:
1462         if (in_init)
1463                 print_stuff(bio_c_out,con,full_log);
1464         SSL_shutdown(con);
1465         SHUTDOWN(SSL_get_fd(con));
1466 end:
1467         if (con != NULL)
1468                 {
1469                 if (prexit != 0)
1470                         print_stuff(bio_c_out,con,1);
1471                 SSL_free(con);
1472                 }
1473         if (ctx != NULL) SSL_CTX_free(ctx);
1474         if (cert)
1475                 X509_free(cert);
1476         if (key)
1477                 EVP_PKEY_free(key);
1478         if (pass)
1479                 OPENSSL_free(pass);
1480         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1481         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1482         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1483         if (bio_c_out != NULL)
1484                 {
1485                 BIO_free(bio_c_out);
1486                 bio_c_out=NULL;
1487                 }
1488         apps_shutdown();
1489         OPENSSL_EXIT(ret);
1490         }
1491
1492
1493 static void print_stuff(BIO *bio, SSL *s, int full)
1494         {
1495         X509 *peer=NULL;
1496         char *p;
1497         static const char *space="                ";
1498         char buf[BUFSIZ];
1499         STACK_OF(X509) *sk;
1500         STACK_OF(X509_NAME) *sk2;
1501         SSL_CIPHER *c;
1502         X509_NAME *xn;
1503         int j,i;
1504 #ifndef OPENSSL_NO_COMP
1505         const COMP_METHOD *comp, *expansion;
1506 #endif
1507
1508         if (full)
1509                 {
1510                 int got_a_chain = 0;
1511
1512                 sk=SSL_get_peer_cert_chain(s);
1513                 if (sk != NULL)
1514                         {
1515                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1516
1517                         BIO_printf(bio,"---\nCertificate chain\n");
1518                         for (i=0; i<sk_X509_num(sk); i++)
1519                                 {
1520                                 X509_NAME_oneline(X509_get_subject_name(
1521                                         sk_X509_value(sk,i)),buf,sizeof buf);
1522                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1523                                 X509_NAME_oneline(X509_get_issuer_name(
1524                                         sk_X509_value(sk,i)),buf,sizeof buf);
1525                                 BIO_printf(bio,"   i:%s\n",buf);
1526                                 if (c_showcerts)
1527                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1528                                 }
1529                         }
1530
1531                 BIO_printf(bio,"---\n");
1532                 peer=SSL_get_peer_certificate(s);
1533                 if (peer != NULL)
1534                         {
1535                         BIO_printf(bio,"Server certificate\n");
1536                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1537                                 PEM_write_bio_X509(bio,peer);
1538                         X509_NAME_oneline(X509_get_subject_name(peer),
1539                                 buf,sizeof buf);
1540                         BIO_printf(bio,"subject=%s\n",buf);
1541                         X509_NAME_oneline(X509_get_issuer_name(peer),
1542                                 buf,sizeof buf);
1543                         BIO_printf(bio,"issuer=%s\n",buf);
1544                         }
1545                 else
1546                         BIO_printf(bio,"no peer certificate available\n");
1547
1548                 sk2=SSL_get_client_CA_list(s);
1549                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1550                         {
1551                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1552                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1553                                 {
1554                                 xn=sk_X509_NAME_value(sk2,i);
1555                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1556                                 BIO_write(bio,buf,strlen(buf));
1557                                 BIO_write(bio,"\n",1);
1558                                 }
1559                         }
1560                 else
1561                         {
1562                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1563                         }
1564                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1565                 if (p != NULL)
1566                         {
1567                         /* This works only for SSL 2.  In later protocol
1568                          * versions, the client does not know what other
1569                          * ciphers (in addition to the one to be used
1570                          * in the current connection) the server supports. */
1571
1572                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1573                         j=i=0;
1574                         while (*p)
1575                                 {
1576                                 if (*p == ':')
1577                                         {
1578                                         BIO_write(bio,space,15-j%25);
1579                                         i++;
1580                                         j=0;
1581                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1582                                         }
1583                                 else
1584                                         {
1585                                         BIO_write(bio,p,1);
1586                                         j++;
1587                                         }
1588                                 p++;
1589                                 }
1590                         BIO_write(bio,"\n",1);
1591                         }
1592
1593                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1594                         BIO_number_read(SSL_get_rbio(s)),
1595                         BIO_number_written(SSL_get_wbio(s)));
1596                 }
1597         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1598         c=SSL_get_current_cipher(s);
1599         BIO_printf(bio,"%s, Cipher is %s\n",
1600                 SSL_CIPHER_get_version(c),
1601                 SSL_CIPHER_get_name(c));
1602         if (peer != NULL) {
1603                 EVP_PKEY *pktmp;
1604                 pktmp = X509_get_pubkey(peer);
1605                 BIO_printf(bio,"Server public key is %d bit\n",
1606                                                          EVP_PKEY_bits(pktmp));
1607                 EVP_PKEY_free(pktmp);
1608         }
1609 #ifndef OPENSSL_NO_COMP
1610         comp=SSL_get_current_compression(s);
1611         expansion=SSL_get_current_expansion(s);
1612         BIO_printf(bio,"Compression: %s\n",
1613                 comp ? SSL_COMP_get_name(comp) : "NONE");
1614         BIO_printf(bio,"Expansion: %s\n",
1615                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1616 #endif
1617         SSL_SESSION_print(bio,SSL_get_session(s));
1618         BIO_printf(bio,"---\n");
1619         if (peer != NULL)
1620                 X509_free(peer);
1621         /* flush, or debugging output gets mixed with http response */
1622         (void)BIO_flush(bio);
1623         }
1624
1625 static int ocsp_resp_cb(SSL *s, void *arg)
1626         {
1627         const unsigned char *p;
1628         int len;
1629         OCSP_RESPONSE *rsp;
1630         len = SSL_get_tlsext_status_ocsp_resp(s, &p);
1631         BIO_puts(arg, "OCSP response: ");
1632         if (!p)
1633                 {
1634                 BIO_puts(arg, "no response sent\n");
1635                 return 1;
1636                 }
1637         rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
1638         if (!rsp)
1639                 {
1640                 BIO_puts(arg, "response parse error\n");
1641                 BIO_dump_indent(arg, (char *)p, len, 4);
1642                 return 0;
1643                 }
1644         BIO_puts(arg, "\n======================================\n");
1645         OCSP_RESPONSE_print(arg, rsp, 0);
1646         BIO_puts(arg, "======================================\n");
1647         OCSP_RESPONSE_free(rsp);
1648         return 1;
1649         }