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 #ifndef OPENSSL_NO_TLSEXT
 209 static int ocsp_resp_cb(SSL *s, void *arg);
 210 #endif
 211 static BIO *bio_c_out=NULL;
 212 static int c_quiet=0;
 213 static int c_ign_eof=0;
 214
 215 #ifndef OPENSSL_NO_PSK
 216 /* Default PSK identity and key */
 217 static char *psk_identity="Client_identity";
 218 static char *psk_key=NULL; /* by default PSK is not used */
 219
 220 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
 221         unsigned int max_identity_len, unsigned char *psk,
 222         unsigned int max_psk_len)
 223         {
 224         unsigned int psk_len = 0;
 225         int ret;
 226         BIGNUM *bn=NULL;
 227
 228         if (c_debug)
 229                 BIO_printf(bio_c_out, "psk_client_cb\n");
 230         if (!hint)
 231                 {
 232                 /* no ServerKeyExchange message*/
 233                 if (c_debug)
 234                         BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n");
 235                 }
 236         else if (c_debug)
 237                 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
 238
 239         /* lookup PSK identity and PSK key based on the given identity hint here */
 240         ret = BIO_snprintf(identity, max_identity_len, psk_identity);
 241         if (ret < 0 || (unsigned int)ret > max_identity_len)
 242                 goto out_err;
 243         if (c_debug)
 244                 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret);
 245         ret=BN_hex2bn(&bn, psk_key);
 246         if (!ret)
 247                 {
 248                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 249                 if (bn)
 250                         BN_free(bn);
 251                 return 0;
 252                 }
 253
 254         if ((unsigned int)BN_num_bytes(bn) > max_psk_len)
 255                 {
 256                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 257                         max_psk_len, BN_num_bytes(bn));
 258                 BN_free(bn);
 259                 return 0;
 260                 }
 261
 262         psk_len=BN_bn2bin(bn, psk);
 263         BN_free(bn);
 264         if (psk_len == 0)
 265                 goto out_err;
 266
 267         if (c_debug)
 268                 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
 269
 270         return psk_len;
 271  out_err:
 272         if (c_debug)
 273                 BIO_printf(bio_err, "Error in PSK client callback\n");
 274         return 0;
 275         }
 276 #endif
 277
 278 static void sc_usage(void)
 279         {
 280         BIO_printf(bio_err,"usage: s_client args\n");
 281         BIO_printf(bio_err,"\n");
 282         BIO_printf(bio_err," -host host     - use -connect instead\n");
 283         BIO_printf(bio_err," -port port     - use -connect instead\n");
 284         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 285
 286         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 287         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 288         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 289         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 290         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 291         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 292         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 293         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 294         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 295         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 296         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 297         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 298         BIO_printf(bio_err," -debug        - extra output\n");
 299 #ifdef WATT32
 300         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 301 #endif
 302         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 303         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 304         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 305 #ifdef FIONBIO
 306         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 307 #endif
 308         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 309         BIO_printf(bio_err," -quiet        - no s_client output\n");
 310         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 311 #ifndef OPENSSL_NO_PSK
 312         BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
 313         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 314 #endif
 315         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 316         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 317         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 318         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 319         BIO_printf(bio_err," -mtu          - set the MTU\n");
 320         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 321         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 322         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 323         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 324         BIO_printf(bio_err,"                 command to see what is available\n");
 325         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 326         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 327         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 328         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", and \"ftp\" are supported.\n");
 329 #ifndef OPENSSL_NO_ENGINE
 330         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 331 #endif
 332         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 333         BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
 334         BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
 335 #ifndef OPENSSL_NO_TLSEXT
 336         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 337         BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
 338         BIO_printf(bio_err," -status           - request certificate status from server\n");
 339         BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
 340 #endif
 341         }
 342
 343 #ifndef OPENSSL_NO_TLSEXT
 344
 345 /* This is a context that we pass to callbacks */
 346 typedef struct tlsextctx_st {
 347    BIO * biodebug;
 348    int ack;
 349 } tlsextctx;
 350
 351
 352 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 353         {
 354         tlsextctx * p = (tlsextctx *) arg;
 355         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 356         if (SSL_get_servername_type(s) != -1)
 357                 p->ack = !SSL_session_reused(s) && hn != NULL;
 358         else
 359                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 360
 361         return SSL_TLSEXT_ERR_OK;
 362         }
 363 #endif
 364
 365 enum
 366 {
 367         PROTO_OFF       = 0,
 368         PROTO_SMTP,
 369         PROTO_POP3,
 370         PROTO_IMAP,
 371         PROTO_FTP
 372 };
 373
 374 int MAIN(int, char **);
 375
 376 int MAIN(int argc, char **argv)
 377         {
 378         int off=0;
 379         SSL *con=NULL;
 380         X509_STORE *store = NULL;
 381         int s,k,width,state=0;
 382         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 383         int cbuf_len,cbuf_off;
 384         int sbuf_len,sbuf_off;
 385         fd_set readfds,writefds;
 386         short port=PORT;
 387         int full_log=1;
 388         char *host=SSL_HOST_NAME;
 389         char *cert_file=NULL,*key_file=NULL;
 390         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 391         char *passarg = NULL, *pass = NULL;
 392         X509 *cert = NULL;
 393         EVP_PKEY *key = NULL;
 394         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 395         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 396         int crlf=0;
 397         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 398         SSL_CTX *ctx=NULL;
 399         int ret=1,in_init=1,i,nbio_test=0;
 400         int starttls_proto = PROTO_OFF;
 401         int prexit = 0, vflags = 0;
 402         const SSL_METHOD *meth=NULL;
 403         int socket_type=SOCK_STREAM;
 404         BIO *sbio;
 405         char *inrand=NULL;
 406         int mbuf_len=0;
 407 #ifndef OPENSSL_NO_ENGINE
 408         char *engine_id=NULL;
 409         char *ssl_client_engine_id=NULL;
 410         ENGINE *e=NULL, *ssl_client_engine=NULL;
 411 #endif
 412 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
 413         struct timeval tv;
 414 #if defined(OPENSSL_SYS_BEOS_R5)
 415         int stdin_set = 0;
 416 #endif
 417 #endif
 418
 419 #ifndef OPENSSL_NO_TLSEXT
 420         char *servername = NULL;
 421         tlsextctx tlsextcbp =
 422         {NULL,0};
 423 #endif
 424         char *sess_in = NULL;
 425         char *sess_out = NULL;
 426         struct sockaddr peer;
 427         int peerlen = sizeof(peer);
 428         int enable_timeouts = 0 ;
 429         long socket_mtu = 0;
 430
 431 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 432         meth=SSLv23_client_method();
 433 #elif !defined(OPENSSL_NO_SSL3)
 434         meth=SSLv3_client_method();
 435 #elif !defined(OPENSSL_NO_SSL2)
 436         meth=SSLv2_client_method();
 437 #endif
 438
 439         apps_startup();
 440         c_Pause=0;
 441         c_quiet=0;
 442         c_ign_eof=0;
 443         c_debug=0;
 444         c_msg=0;
 445         c_showcerts=0;
 446
 447         if (bio_err == NULL)
 448                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 449
 450         if (!load_config(bio_err, NULL))
 451                 goto end;
 452
 453         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 454                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 455                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 456                 {
 457                 BIO_printf(bio_err,"out of memory\n");
 458                 goto end;
 459                 }
 460
 461         verify_depth=0;
 462         verify_error=X509_V_OK;
 463 #ifdef FIONBIO
 464         c_nbio=0;
 465 #endif
 466
 467         argc--;
 468         argv++;
 469         while (argc >= 1)
 470                 {
 471                 if      (strcmp(*argv,"-host") == 0)
 472                         {
 473                         if (--argc < 1) goto bad;
 474                         host= *(++argv);
 475                         }
 476                 else if (strcmp(*argv,"-port") == 0)
 477                         {
 478                         if (--argc < 1) goto bad;
 479                         port=atoi(*(++argv));
 480                         if (port == 0) goto bad;
 481                         }
 482                 else if (strcmp(*argv,"-connect") == 0)
 483                         {
 484                         if (--argc < 1) goto bad;
 485                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 486                                 goto bad;
 487                         }
 488                 else if (strcmp(*argv,"-verify") == 0)
 489                         {
 490                         verify=SSL_VERIFY_PEER;
 491                         if (--argc < 1) goto bad;
 492                         verify_depth=atoi(*(++argv));
 493                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 494                         }
 495                 else if (strcmp(*argv,"-cert") == 0)
 496                         {
 497                         if (--argc < 1) goto bad;
 498                         cert_file= *(++argv);
 499                         }
 500                 else if (strcmp(*argv,"-sess_out") == 0)
 501                         {
 502                         if (--argc < 1) goto bad;
 503                         sess_out = *(++argv);
 504                         }
 505                 else if (strcmp(*argv,"-sess_in") == 0)
 506                         {
 507                         if (--argc < 1) goto bad;
 508                         sess_in = *(++argv);
 509                         }
 510                 else if (strcmp(*argv,"-certform") == 0)
 511                         {
 512                         if (--argc < 1) goto bad;
 513                         cert_format = str2fmt(*(++argv));
 514                         }
 515                 else if (strcmp(*argv,"-crl_check") == 0)
 516                         vflags |= X509_V_FLAG_CRL_CHECK;
 517                 else if (strcmp(*argv,"-crl_check_all") == 0)
 518                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 519                 else if (strcmp(*argv,"-verify_return_error") == 0)
 520                         verify_return_error = 1;
 521                 else if (strcmp(*argv,"-prexit") == 0)
 522                         prexit=1;
 523                 else if (strcmp(*argv,"-crlf") == 0)
 524                         crlf=1;
 525                 else if (strcmp(*argv,"-quiet") == 0)
 526                         {
 527                         c_quiet=1;
 528                         c_ign_eof=1;
 529                         }
 530                 else if (strcmp(*argv,"-ign_eof") == 0)
 531                         c_ign_eof=1;
 532                 else if (strcmp(*argv,"-pause") == 0)
 533                         c_Pause=1;
 534                 else if (strcmp(*argv,"-debug") == 0)
 535                         c_debug=1;
 536 #ifndef OPENSSL_NO_TLSEXT
 537                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 538                         c_tlsextdebug=1;
 539                 else if (strcmp(*argv,"-status") == 0)
 540                         c_status_req=1;
 541 #endif
 542 #ifdef WATT32
 543                 else if (strcmp(*argv,"-wdebug") == 0)
 544                         dbug_init();
 545 #endif
 546                 else if (strcmp(*argv,"-msg") == 0)
 547                         c_msg=1;
 548                 else if (strcmp(*argv,"-showcerts") == 0)
 549                         c_showcerts=1;
 550                 else if (strcmp(*argv,"-nbio_test") == 0)
 551                         nbio_test=1;
 552                 else if (strcmp(*argv,"-state") == 0)
 553                         state=1;
 554 #ifndef OPENSSL_NO_PSK
 555                 else if (strcmp(*argv,"-psk_identity") == 0)
 556                         {
 557                         if (--argc < 1) goto bad;
 558                         psk_identity=*(++argv);
 559                         }
 560                 else if (strcmp(*argv,"-psk") == 0)
 561                         {
 562                         size_t j;
 563
 564                         if (--argc < 1) goto bad;
 565                         psk_key=*(++argv);
 566                         for (j = 0; j < strlen(psk_key); j++)
 567                                 {
 568                                 if (isxdigit((int)psk_key[j]))
 569                                         continue;
 570                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
 571                                 goto bad;
 572                                 }
 573                         }
 574 #endif
 575 #ifndef OPENSSL_NO_SSL2
 576                 else if (strcmp(*argv,"-ssl2") == 0)
 577                         meth=SSLv2_client_method();
 578 #endif
 579 #ifndef OPENSSL_NO_SSL3
 580                 else if (strcmp(*argv,"-ssl3") == 0)
 581                         meth=SSLv3_client_method();
 582 #endif
 583 #ifndef OPENSSL_NO_TLS1
 584                 else if (strcmp(*argv,"-tls1") == 0)
 585                         meth=TLSv1_client_method();
 586 #endif
 587 #ifndef OPENSSL_NO_DTLS1
 588                 else if (strcmp(*argv,"-dtls1") == 0)
 589                         {
 590                         meth=DTLSv1_client_method();
 591                         socket_type=SOCK_DGRAM;
 592                         }
 593                 else if (strcmp(*argv,"-timeout") == 0)
 594                         enable_timeouts=1;
 595                 else if (strcmp(*argv,"-mtu") == 0)
 596                         {
 597                         if (--argc < 1) goto bad;
 598                         socket_mtu = atol(*(++argv));
 599                         }
 600 #endif
 601                 else if (strcmp(*argv,"-bugs") == 0)
 602                         bugs=1;
 603                 else if (strcmp(*argv,"-keyform") == 0)
 604                         {
 605                         if (--argc < 1) goto bad;
 606                         key_format = str2fmt(*(++argv));
 607                         }
 608                 else if (strcmp(*argv,"-pass") == 0)
 609                         {
 610                         if (--argc < 1) goto bad;
 611                         passarg = *(++argv);
 612                         }
 613                 else if (strcmp(*argv,"-key") == 0)
 614                         {
 615                         if (--argc < 1) goto bad;
 616                         key_file= *(++argv);
 617                         }
 618                 else if (strcmp(*argv,"-reconnect") == 0)
 619                         {
 620                         reconnect=5;
 621                         }
 622                 else if (strcmp(*argv,"-CApath") == 0)
 623                         {
 624                         if (--argc < 1) goto bad;
 625                         CApath= *(++argv);
 626                         }
 627                 else if (strcmp(*argv,"-CAfile") == 0)
 628                         {
 629                         if (--argc < 1) goto bad;
 630                         CAfile= *(++argv);
 631                         }
 632                 else if (strcmp(*argv,"-no_tls1") == 0)
 633                         off|=SSL_OP_NO_TLSv1;
 634                 else if (strcmp(*argv,"-no_ssl3") == 0)
 635                         off|=SSL_OP_NO_SSLv3;
 636                 else if (strcmp(*argv,"-no_ssl2") == 0)
 637                         off|=SSL_OP_NO_SSLv2;
 638                 else if (strcmp(*argv,"-no_comp") == 0)
 639                         { off|=SSL_OP_NO_COMPRESSION; }
 640 #ifndef OPENSSL_NO_TLSEXT
 641                 else if (strcmp(*argv,"-no_ticket") == 0)
 642                         { off|=SSL_OP_NO_TICKET; }
 643 #endif
 644                 else if (strcmp(*argv,"-serverpref") == 0)
 645                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 646                 else if (strcmp(*argv,"-cipher") == 0)
 647                         {
 648                         if (--argc < 1) goto bad;
 649                         cipher= *(++argv);
 650                         }
 651 #ifdef FIONBIO
 652                 else if (strcmp(*argv,"-nbio") == 0)
 653                         { c_nbio=1; }
 654 #endif
 655                 else if (strcmp(*argv,"-starttls") == 0)
 656                         {
 657                         if (--argc < 1) goto bad;
 658                         ++argv;
 659                         if (strcmp(*argv,"smtp") == 0)
 660                                 starttls_proto = PROTO_SMTP;
 661                         else if (strcmp(*argv,"pop3") == 0)
 662                                 starttls_proto = PROTO_POP3;
 663                         else if (strcmp(*argv,"imap") == 0)
 664                                 starttls_proto = PROTO_IMAP;
 665                         else if (strcmp(*argv,"ftp") == 0)
 666                                 starttls_proto = PROTO_FTP;
 667                         else
 668                                 goto bad;
 669                         }
 670 #ifndef OPENSSL_NO_ENGINE
 671                 else if (strcmp(*argv,"-engine") == 0)
 672                         {
 673                         if (--argc < 1) goto bad;
 674                         engine_id = *(++argv);
 675                         }
 676                 else if (strcmp(*argv,"-ssl_client_engine") == 0)
 677                         {
 678                         if (--argc < 1) goto bad;
 679                         ssl_client_engine_id = *(++argv);
 680                         }
 681 #endif
 682                 else if (strcmp(*argv,"-rand") == 0)
 683                         {
 684                         if (--argc < 1) goto bad;
 685                         inrand= *(++argv);
 686                         }
 687 #ifndef OPENSSL_NO_TLSEXT
 688                 else if (strcmp(*argv,"-servername") == 0)
 689                         {
 690                         if (--argc < 1) goto bad;
 691                         servername= *(++argv);
 692                         /* meth=TLSv1_client_method(); */
 693                         }
 694 #endif
 695                 else
 696                         {
 697                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 698                         badop=1;
 699                         break;
 700                         }
 701                 argc--;
 702                 argv++;
 703                 }
 704         if (badop)
 705                 {
 706 bad:
 707                 sc_usage();
 708                 goto end;
 709                 }
 710
 711         OpenSSL_add_ssl_algorithms();
 712         SSL_load_error_strings();
 713
 714 #ifndef OPENSSL_NO_ENGINE
 715         e = setup_engine(bio_err, engine_id, 1);
 716         if (ssl_client_engine_id)
 717                 {
 718                 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
 719                 if (!ssl_client_engine)
 720                         {
 721                         BIO_printf(bio_err,
 722                                         "Error getting client auth engine\n");
 723                         goto end;
 724                         }
 725                 }
 726
 727 #endif
 728         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
 729                 {
 730                 BIO_printf(bio_err, "Error getting password\n");
 731                 goto end;
 732                 }
 733
 734         if (key_file == NULL)
 735                 key_file = cert_file;
 736
 737
 738         if (key_file)
 739
 740                 {
 741
 742                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
 743                                "client certificate private key file");
 744                 if (!key)
 745                         {
 746                         ERR_print_errors(bio_err);
 747                         goto end;
 748                         }
 749
 750                 }
 751
 752         if (cert_file)
 753
 754                 {
 755                 cert = load_cert(bio_err,cert_file,cert_format,
 756                                 NULL, e, "client certificate file");
 757
 758                 if (!cert)
 759                         {
 760                         ERR_print_errors(bio_err);
 761                         goto end;
 762                         }
 763                 }
 764
 765         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 766                 && !RAND_status())
 767                 {
 768                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 769                 }
 770         if (inrand != NULL)
 771                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 772                         app_RAND_load_files(inrand));
 773
 774         if (bio_c_out == NULL)
 775                 {
 776                 if (c_quiet && !c_debug && !c_msg)
 777                         {
 778                         bio_c_out=BIO_new(BIO_s_null());
 779                         }
 780                 else
 781                         {
 782                         if (bio_c_out == NULL)
 783                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 784                         }
 785                 }
 786
 787         ctx=SSL_CTX_new(meth);
 788         if (ctx == NULL)
 789                 {
 790                 ERR_print_errors(bio_err);
 791                 goto end;
 792                 }
 793
 794 #ifndef OPENSSL_NO_ENGINE
 795         if (ssl_client_engine)
 796                 {
 797                 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine))
 798                         {
 799                         BIO_puts(bio_err, "Error setting client auth engine\n");
 800                         ERR_print_errors(bio_err);
 801                         ENGINE_free(ssl_client_engine);
 802                         goto end;
 803                         }
 804                 ENGINE_free(ssl_client_engine);
 805                 }
 806 #endif
 807
 808 #ifndef OPENSSL_NO_PSK
 809         if (psk_key != NULL)
 810                 {
 811                 if (c_debug)
 812                         BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
 813                 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
 814                 }
 815 #endif
 816         if (bugs)
 817                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 818         else
 819                 SSL_CTX_set_options(ctx,off);
 820         /* DTLS: partial reads end up discarding unread UDP bytes :-(
 821          * Setting read ahead solves this problem.
 822          */
 823         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
 824
 825         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 826         if (cipher != NULL)
 827                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 828                 BIO_printf(bio_err,"error setting cipher list\n");
 829                 ERR_print_errors(bio_err);
 830                 goto end;
 831         }
 832 #if 0
 833         else
 834                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 835 #endif
 836
 837         SSL_CTX_set_verify(ctx,verify,verify_callback);
 838         if (!set_cert_key_stuff(ctx,cert,key))
 839                 goto end;
 840
 841         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 842                 (!SSL_CTX_set_default_verify_paths(ctx)))
 843                 {
 844                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 845                 ERR_print_errors(bio_err);
 846                 /* goto end; */
 847                 }
 848
 849         store = SSL_CTX_get_cert_store(ctx);
 850         X509_STORE_set_flags(store, vflags);
 851 #ifndef OPENSSL_NO_TLSEXT
 852         if (servername != NULL)
 853                 {
 854                 tlsextcbp.biodebug = bio_err;
 855                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
 856                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
 857                 }
 858 #endif
 859
 860         con=SSL_new(ctx);
 861         if (sess_in)
 862                 {
 863                 SSL_SESSION *sess;
 864                 BIO *stmp = BIO_new_file(sess_in, "r");
 865                 if (!stmp)
 866                         {
 867                         BIO_printf(bio_err, "Can't open session file %s\n",
 868                                                 sess_in);
 869                         ERR_print_errors(bio_err);
 870                         goto end;
 871                         }
 872                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
 873                 BIO_free(stmp);
 874                 if (!sess)
 875                         {
 876                         BIO_printf(bio_err, "Can't open session file %s\n",
 877                                                 sess_in);
 878                         ERR_print_errors(bio_err);
 879                         goto end;
 880                         }
 881                 SSL_set_session(con, sess);
 882                 SSL_SESSION_free(sess);
 883                 }
 884 #ifndef OPENSSL_NO_TLSEXT
 885         if (servername != NULL)
 886                 {
 887                 if (!SSL_set_tlsext_host_name(con,servername))
 888                         {
 889                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
 890                         ERR_print_errors(bio_err);
 891                         goto end;
 892                         }
 893                 }
 894 #endif
 895 #ifndef OPENSSL_NO_KRB5
 896         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 897                 {
 898                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 899                 }
 900 #endif  /* OPENSSL_NO_KRB5  */
 901 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 902 #if 0
 903 #ifdef TLSEXT_TYPE_opaque_prf_input
 904         SSL_set_tlsext_opaque_prf_input(con, "Test client", 11);
 905 #endif
 906 #endif
 907
 908 re_start:
 909
 910         if (init_client(&s,host,port,socket_type) == 0)
 911                 {
 912                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 913                 SHUTDOWN(s);
 914                 goto end;
 915                 }
 916         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 917
 918 #ifdef FIONBIO
 919         if (c_nbio)
 920                 {
 921                 unsigned long l=1;
 922                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 923                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 924                         {
 925                         ERR_print_errors(bio_err);
 926                         goto end;
 927                         }
 928                 }
 929 #endif
 930         if (c_Pause & 0x01) con->debug=1;
 931
 932         if ( SSL_version(con) == DTLS1_VERSION)
 933                 {
 934                 struct timeval timeout;
 935
 936                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
 937                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
 938                         {
 939                         BIO_printf(bio_err, "getsockname:errno=%d\n",
 940                                 get_last_socket_error());
 941                         SHUTDOWN(s);
 942                         goto end;
 943                         }
 944
 945                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
 946
 947                 if (enable_timeouts)
 948                         {
 949                         timeout.tv_sec = 0;
 950                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
 951                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
 952
 953                         timeout.tv_sec = 0;
 954                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
 955                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
 956                         }
 957
 958                 if (socket_mtu > 0)
 959                         {
 960                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
 961                         SSL_set_mtu(con, socket_mtu);
 962                         }
 963                 else
 964                         /* want to do MTU discovery */
 965                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
 966                 }
 967         else
 968                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
 969
 970
 971
 972         if (nbio_test)
 973                 {
 974                 BIO *test;
 975
 976                 test=BIO_new(BIO_f_nbio_test());
 977                 sbio=BIO_push(test,sbio);
 978                 }
 979
 980         if (c_debug)
 981                 {
 982                 con->debug=1;
 983                 BIO_set_callback(sbio,bio_dump_callback);
 984                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
 985                 }
 986         if (c_msg)
 987                 {
 988                 SSL_set_msg_callback(con, msg_cb);
 989                 SSL_set_msg_callback_arg(con, bio_c_out);
 990                 }
 991 #ifndef OPENSSL_NO_TLSEXT
 992         if (c_tlsextdebug)
 993                 {
 994                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
 995                 SSL_set_tlsext_debug_arg(con, bio_c_out);
 996                 }
 997         if (c_status_req)
 998                 {
 999                 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
1000                 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
1001                 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
1002 #if 0
1003 {
1004 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
1005 OCSP_RESPID *id = OCSP_RESPID_new();
1006 id->value.byKey = ASN1_OCTET_STRING_new();
1007 id->type = V_OCSP_RESPID_KEY;
1008 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
1009 sk_OCSP_RESPID_push(ids, id);
1010 SSL_set_tlsext_status_ids(con, ids);
1011 }
1012 #endif
1013                 }
1014 #endif
1015
1016         SSL_set_bio(con,sbio,sbio);
1017         SSL_set_connect_state(con);
1018
1019         /* ok, lets connect */
1020         width=SSL_get_fd(con)+1;
1021
1022         read_tty=1;
1023         write_tty=0;
1024         tty_on=0;
1025         read_ssl=1;
1026         write_ssl=1;
1027
1028         cbuf_len=0;
1029         cbuf_off=0;
1030         sbuf_len=0;
1031         sbuf_off=0;
1032
1033         /* This is an ugly hack that does a lot of assumptions */
1034         /* We do have to handle multi-line responses which may come
1035            in a single packet or not. We therefore have to use
1036            BIO_gets() which does need a buffering BIO. So during
1037            the initial chitchat we do push a buffering BIO into the
1038            chain that is removed again later on to not disturb the
1039            rest of the s_client operation. */
1040         if (starttls_proto == PROTO_SMTP)
1041                 {
1042                 int foundit=0;
1043                 BIO *fbio = BIO_new(BIO_f_buffer());
1044                 BIO_push(fbio, sbio);
1045                 /* wait for multi-line response to end from SMTP */
1046                 do
1047                         {
1048                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1049                         }
1050                 while (mbuf_len>3 && mbuf[3]=='-');
1051                 /* STARTTLS command requires EHLO... */
1052                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
1053                 (void)BIO_flush(fbio);
1054                 /* wait for multi-line response to end EHLO SMTP 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[3]=='-');
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_POP3)
1073                 {
1074                 BIO_read(sbio,mbuf,BUFSIZZ);
1075                 BIO_printf(sbio,"STLS\r\n");
1076                 BIO_read(sbio,sbuf,BUFSIZZ);
1077                 }
1078         else if (starttls_proto == PROTO_IMAP)
1079                 {
1080                 int foundit=0;
1081                 BIO *fbio = BIO_new(BIO_f_buffer());
1082                 BIO_push(fbio, sbio);
1083                 BIO_gets(fbio,mbuf,BUFSIZZ);
1084                 /* STARTTLS command requires CAPABILITY... */
1085                 BIO_printf(fbio,". CAPABILITY\r\n");
1086                 (void)BIO_flush(fbio);
1087                 /* wait for multi-line CAPABILITY response */
1088                 do
1089                         {
1090                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1091                         if (strstr(mbuf,"STARTTLS"))
1092                                 foundit=1;
1093                         }
1094                 while (mbuf_len>3 && mbuf[0]!='.');
1095                 (void)BIO_flush(fbio);
1096                 BIO_pop(fbio);
1097                 BIO_free(fbio);
1098                 if (!foundit)
1099                         BIO_printf(bio_err,
1100                                    "didn't found STARTTLS in server response,"
1101                                    " try anyway...\n");
1102                 BIO_printf(sbio,". STARTTLS\r\n");
1103                 BIO_read(sbio,sbuf,BUFSIZZ);
1104                 }
1105         else if (starttls_proto == PROTO_FTP)
1106                 {
1107                 BIO *fbio = BIO_new(BIO_f_buffer());
1108                 BIO_push(fbio, sbio);
1109                 /* wait for multi-line response to end from FTP */
1110                 do
1111                         {
1112                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1113                         }
1114                 while (mbuf_len>3 && mbuf[3]=='-');
1115                 (void)BIO_flush(fbio);
1116                 BIO_pop(fbio);
1117                 BIO_free(fbio);
1118                 BIO_printf(sbio,"AUTH TLS\r\n");
1119                 BIO_read(sbio,sbuf,BUFSIZZ);
1120                 }
1121
1122         for (;;)
1123                 {
1124                 FD_ZERO(&readfds);
1125                 FD_ZERO(&writefds);
1126
1127                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1128                         {
1129                         in_init=1;
1130                         tty_on=0;
1131                         }
1132                 else
1133                         {
1134                         tty_on=1;
1135                         if (in_init)
1136                                 {
1137                                 in_init=0;
1138 #if 0 /* This test doesn't really work as intended (needs to be fixed) */
1139 #ifndef OPENSSL_NO_TLSEXT
1140                                 if (servername != NULL && !SSL_session_reused(con))
1141                                         {
1142                                         BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
1143                                         }
1144 #endif
1145 #endif
1146                                 if (sess_out)
1147                                         {
1148                                         BIO *stmp = BIO_new_file(sess_out, "w");
1149                                         if (stmp)
1150                                                 {
1151                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1152                                                 BIO_free(stmp);
1153                                                 }
1154                                         else
1155                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1156                                         }
1157                                 print_stuff(bio_c_out,con,full_log);
1158                                 if (full_log > 0) full_log--;
1159
1160                                 if (starttls_proto)
1161                                         {
1162                                         BIO_printf(bio_err,"%s",mbuf);
1163                                         /* We don't need to know any more */
1164                                         starttls_proto = PROTO_OFF;
1165                                         }
1166
1167                                 if (reconnect)
1168                                         {
1169                                         reconnect--;
1170                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1171                                         SSL_shutdown(con);
1172                                         SSL_set_connect_state(con);
1173                                         SHUTDOWN(SSL_get_fd(con));
1174                                         goto re_start;
1175                                         }
1176                                 }
1177                         }
1178
1179                 ssl_pending = read_ssl && SSL_pending(con);
1180
1181                 if (!ssl_pending)
1182                         {
1183 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
1184                         if (tty_on)
1185                                 {
1186                                 if (read_tty)  openssl_fdset(fileno(stdin),&readfds);
1187                                 if (write_tty) openssl_fdset(fileno(stdout),&writefds);
1188                                 }
1189                         if (read_ssl)
1190                                 openssl_fdset(SSL_get_fd(con),&readfds);
1191                         if (write_ssl)
1192                                 openssl_fdset(SSL_get_fd(con),&writefds);
1193 #else
1194                         if(!tty_on || !write_tty) {
1195                                 if (read_ssl)
1196                                         openssl_fdset(SSL_get_fd(con),&readfds);
1197                                 if (write_ssl)
1198                                         openssl_fdset(SSL_get_fd(con),&writefds);
1199                         }
1200 #endif
1201 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1202                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1203
1204                         /* Note: under VMS with SOCKETSHR the second parameter
1205                          * is currently of type (int *) whereas under other
1206                          * systems it is (void *) if you don't have a cast it
1207                          * will choke the compiler: if you do have a cast then
1208                          * you can either go for (int *) or (void *).
1209                          */
1210 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1211                         /* Under Windows/DOS we make the assumption that we can
1212                          * always write to the tty: therefore if we need to
1213                          * write to the tty we just fall through. Otherwise
1214                          * we timeout the select every second and see if there
1215                          * are any keypresses. Note: this is a hack, in a proper
1216                          * Windows application we wouldn't do this.
1217                          */
1218                         i=0;
1219                         if(!write_tty) {
1220                                 if(read_tty) {
1221                                         tv.tv_sec = 1;
1222                                         tv.tv_usec = 0;
1223                                         i=select(width,(void *)&readfds,(void *)&writefds,
1224                                                  NULL,&tv);
1225 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1226                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1227 #else
1228                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1229 #endif
1230                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1231                                          NULL,NULL);
1232                         }
1233 #elif defined(OPENSSL_SYS_NETWARE)
1234                         if(!write_tty) {
1235                                 if(read_tty) {
1236                                         tv.tv_sec = 1;
1237                                         tv.tv_usec = 0;
1238                                         i=select(width,(void *)&readfds,(void *)&writefds,
1239                                                 NULL,&tv);
1240                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1241                                         NULL,NULL);
1242                         }
1243 #elif defined(OPENSSL_SYS_BEOS_R5)
1244                         /* Under BeOS-R5 the situation is similar to DOS */
1245                         i=0;
1246                         stdin_set = 0;
1247                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1248                         if(!write_tty) {
1249                                 if(read_tty) {
1250                                         tv.tv_sec = 1;
1251                                         tv.tv_usec = 0;
1252                                         i=select(width,(void *)&readfds,(void *)&writefds,
1253                                                  NULL,&tv);
1254                                         if (read(fileno(stdin), sbuf, 0) >= 0)
1255                                                 stdin_set = 1;
1256                                         if (!i && (stdin_set != 1 || !read_tty))
1257                                                 continue;
1258                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1259                                          NULL,NULL);
1260                         }
1261                         (void)fcntl(fileno(stdin), F_SETFL, 0);
1262 #else
1263                         i=select(width,(void *)&readfds,(void *)&writefds,
1264                                  NULL,NULL);
1265 #endif
1266                         if ( i < 0)
1267                                 {
1268                                 BIO_printf(bio_err,"bad select %d\n",
1269                                 get_last_socket_error());
1270                                 goto shut;
1271                                 /* goto end; */
1272                                 }
1273                         }
1274
1275                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1276                         {
1277                         k=SSL_write(con,&(cbuf[cbuf_off]),
1278                                 (unsigned int)cbuf_len);
1279                         switch (SSL_get_error(con,k))
1280                                 {
1281                         case SSL_ERROR_NONE:
1282                                 cbuf_off+=k;
1283                                 cbuf_len-=k;
1284                                 if (k <= 0) goto end;
1285                                 /* we have done a  write(con,NULL,0); */
1286                                 if (cbuf_len <= 0)
1287                                         {
1288                                         read_tty=1;
1289                                         write_ssl=0;
1290                                         }
1291                                 else /* if (cbuf_len > 0) */
1292                                         {
1293                                         read_tty=0;
1294                                         write_ssl=1;
1295                                         }
1296                                 break;
1297                         case SSL_ERROR_WANT_WRITE:
1298                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1299                                 write_ssl=1;
1300                                 read_tty=0;
1301                                 break;
1302                         case SSL_ERROR_WANT_READ:
1303                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1304                                 write_tty=0;
1305                                 read_ssl=1;
1306                                 write_ssl=0;
1307                                 break;
1308                         case SSL_ERROR_WANT_X509_LOOKUP:
1309                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1310                                 break;
1311                         case SSL_ERROR_ZERO_RETURN:
1312                                 if (cbuf_len != 0)
1313                                         {
1314                                         BIO_printf(bio_c_out,"shutdown\n");
1315                                         ret = 0;
1316                                         goto shut;
1317                                         }
1318                                 else
1319                                         {
1320                                         read_tty=1;
1321                                         write_ssl=0;
1322                                         break;
1323                                         }
1324
1325                         case SSL_ERROR_SYSCALL:
1326                                 if ((k != 0) || (cbuf_len != 0))
1327                                         {
1328                                         BIO_printf(bio_err,"write:errno=%d\n",
1329                                                 get_last_socket_error());
1330                                         goto shut;
1331                                         }
1332                                 else
1333                                         {
1334                                         read_tty=1;
1335                                         write_ssl=0;
1336                                         }
1337                                 break;
1338                         case SSL_ERROR_SSL:
1339                                 ERR_print_errors(bio_err);
1340                                 goto shut;
1341                                 }
1342                         }
1343 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1344                 /* Assume Windows/DOS/BeOS can always write */
1345                 else if (!ssl_pending && write_tty)
1346 #else
1347                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1348 #endif
1349                         {
1350 #ifdef CHARSET_EBCDIC
1351                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1352 #endif
1353                         i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
1354
1355                         if (i <= 0)
1356                                 {
1357                                 BIO_printf(bio_c_out,"DONE\n");
1358                                 ret = 0;
1359                                 goto shut;
1360                                 /* goto end; */
1361                                 }
1362
1363                         sbuf_len-=i;;
1364                         sbuf_off+=i;
1365                         if (sbuf_len <= 0)
1366                                 {
1367                                 read_ssl=1;
1368                                 write_tty=0;
1369                                 }
1370                         }
1371                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1372                         {
1373 #ifdef RENEG
1374 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1375 #endif
1376 #if 1
1377                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1378 #else
1379 /* Demo for pending and peek :-) */
1380                         k=SSL_read(con,sbuf,16);
1381 { char zbuf[10240];
1382 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1383 }
1384 #endif
1385
1386                         switch (SSL_get_error(con,k))
1387                                 {
1388                         case SSL_ERROR_NONE:
1389                                 if (k <= 0)
1390                                         goto end;
1391                                 sbuf_off=0;
1392                                 sbuf_len=k;
1393
1394                                 read_ssl=0;
1395                                 write_tty=1;
1396                                 break;
1397                         case SSL_ERROR_WANT_WRITE:
1398                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1399                                 write_ssl=1;
1400                                 read_tty=0;
1401                                 break;
1402                         case SSL_ERROR_WANT_READ:
1403                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1404                                 write_tty=0;
1405                                 read_ssl=1;
1406                                 if ((read_tty == 0) && (write_ssl == 0))
1407                                         write_ssl=1;
1408                                 break;
1409                         case SSL_ERROR_WANT_X509_LOOKUP:
1410                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1411                                 break;
1412                         case SSL_ERROR_SYSCALL:
1413                                 ret=get_last_socket_error();
1414                                 BIO_printf(bio_err,"read:errno=%d\n",ret);
1415                                 goto shut;
1416                         case SSL_ERROR_ZERO_RETURN:
1417                                 BIO_printf(bio_c_out,"closed\n");
1418                                 ret=0;
1419                                 goto shut;
1420                         case SSL_ERROR_SSL:
1421                                 ERR_print_errors(bio_err);
1422                                 goto shut;
1423                                 /* break; */
1424                                 }
1425                         }
1426
1427 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1428 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1429                 else if (_kbhit())
1430 #else
1431                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1432 #endif
1433 #elif defined (OPENSSL_SYS_NETWARE)
1434                 else if (_kbhit())
1435 #elif defined(OPENSSL_SYS_BEOS_R5)
1436                 else if (stdin_set)
1437 #else
1438                 else if (FD_ISSET(fileno(stdin),&readfds))
1439 #endif
1440                         {
1441                         if (crlf)
1442                                 {
1443                                 int j, lf_num;
1444
1445                                 i=raw_read_stdin(cbuf,BUFSIZZ/2);
1446                                 lf_num = 0;
1447                                 /* both loops are skipped when i <= 0 */
1448                                 for (j = 0; j < i; j++)
1449                                         if (cbuf[j] == '\n')
1450                                                 lf_num++;
1451                                 for (j = i-1; j >= 0; j--)
1452                                         {
1453                                         cbuf[j+lf_num] = cbuf[j];
1454                                         if (cbuf[j] == '\n')
1455                                                 {
1456                                                 lf_num--;
1457                                                 i++;
1458                                                 cbuf[j+lf_num] = '\r';
1459                                                 }
1460                                         }
1461                                 assert(lf_num == 0);
1462                                 }
1463                         else
1464                                 i=raw_read_stdin(cbuf,BUFSIZZ);
1465
1466                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1467                                 {
1468                                 BIO_printf(bio_err,"DONE\n");
1469                                 ret=0;
1470                                 goto shut;
1471                                 }
1472
1473                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1474                                 {
1475                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1476                                 SSL_renegotiate(con);
1477                                 cbuf_len=0;
1478                                 }
1479                         else
1480                                 {
1481                                 cbuf_len=i;
1482                                 cbuf_off=0;
1483 #ifdef CHARSET_EBCDIC
1484                                 ebcdic2ascii(cbuf, cbuf, i);
1485 #endif
1486                                 }
1487
1488                         write_ssl=1;
1489                         read_tty=0;
1490                         }
1491                 }
1492
1493         ret=0;
1494 shut:
1495         if (in_init)
1496                 print_stuff(bio_c_out,con,full_log);
1497         SSL_shutdown(con);
1498         SHUTDOWN(SSL_get_fd(con));
1499 end:
1500         if (con != NULL)
1501                 {
1502                 if (prexit != 0)
1503                         print_stuff(bio_c_out,con,1);
1504                 SSL_free(con);
1505                 }
1506         if (ctx != NULL) SSL_CTX_free(ctx);
1507         if (cert)
1508                 X509_free(cert);
1509         if (key)
1510                 EVP_PKEY_free(key);
1511         if (pass)
1512                 OPENSSL_free(pass);
1513         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1514         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1515         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1516         if (bio_c_out != NULL)
1517                 {
1518                 BIO_free(bio_c_out);
1519                 bio_c_out=NULL;
1520                 }
1521         apps_shutdown();
1522         OPENSSL_EXIT(ret);
1523         }
1524
1525
1526 static void print_stuff(BIO *bio, SSL *s, int full)
1527         {
1528         X509 *peer=NULL;
1529         char *p;
1530         static const char *space="                ";
1531         char buf[BUFSIZ];
1532         STACK_OF(X509) *sk;
1533         STACK_OF(X509_NAME) *sk2;
1534         const SSL_CIPHER *c;
1535         X509_NAME *xn;
1536         int j,i;
1537 #ifndef OPENSSL_NO_COMP
1538         const COMP_METHOD *comp, *expansion;
1539 #endif
1540
1541         if (full)
1542                 {
1543                 int got_a_chain = 0;
1544
1545                 sk=SSL_get_peer_cert_chain(s);
1546                 if (sk != NULL)
1547                         {
1548                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1549
1550                         BIO_printf(bio,"---\nCertificate chain\n");
1551                         for (i=0; i<sk_X509_num(sk); i++)
1552                                 {
1553                                 X509_NAME_oneline(X509_get_subject_name(
1554                                         sk_X509_value(sk,i)),buf,sizeof buf);
1555                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1556                                 X509_NAME_oneline(X509_get_issuer_name(
1557                                         sk_X509_value(sk,i)),buf,sizeof buf);
1558                                 BIO_printf(bio,"   i:%s\n",buf);
1559                                 if (c_showcerts)
1560                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1561                                 }
1562                         }
1563
1564                 BIO_printf(bio,"---\n");
1565                 peer=SSL_get_peer_certificate(s);
1566                 if (peer != NULL)
1567                         {
1568                         BIO_printf(bio,"Server certificate\n");
1569                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1570                                 PEM_write_bio_X509(bio,peer);
1571                         X509_NAME_oneline(X509_get_subject_name(peer),
1572                                 buf,sizeof buf);
1573                         BIO_printf(bio,"subject=%s\n",buf);
1574                         X509_NAME_oneline(X509_get_issuer_name(peer),
1575                                 buf,sizeof buf);
1576                         BIO_printf(bio,"issuer=%s\n",buf);
1577                         }
1578                 else
1579                         BIO_printf(bio,"no peer certificate available\n");
1580
1581                 sk2=SSL_get_client_CA_list(s);
1582                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1583                         {
1584                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1585                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1586                                 {
1587                                 xn=sk_X509_NAME_value(sk2,i);
1588                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1589                                 BIO_write(bio,buf,strlen(buf));
1590                                 BIO_write(bio,"\n",1);
1591                                 }
1592                         }
1593                 else
1594                         {
1595                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1596                         }
1597                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1598                 if (p != NULL)
1599                         {
1600                         /* This works only for SSL 2.  In later protocol
1601                          * versions, the client does not know what other
1602                          * ciphers (in addition to the one to be used
1603                          * in the current connection) the server supports. */
1604
1605                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1606                         j=i=0;
1607                         while (*p)
1608                                 {
1609                                 if (*p == ':')
1610                                         {
1611                                         BIO_write(bio,space,15-j%25);
1612                                         i++;
1613                                         j=0;
1614                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1615                                         }
1616                                 else
1617                                         {
1618                                         BIO_write(bio,p,1);
1619                                         j++;
1620                                         }
1621                                 p++;
1622                                 }
1623                         BIO_write(bio,"\n",1);
1624                         }
1625
1626                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1627                         BIO_number_read(SSL_get_rbio(s)),
1628                         BIO_number_written(SSL_get_wbio(s)));
1629                 }
1630         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1631         c=SSL_get_current_cipher(s);
1632         BIO_printf(bio,"%s, Cipher is %s\n",
1633                 SSL_CIPHER_get_version(c),
1634                 SSL_CIPHER_get_name(c));
1635         if (peer != NULL) {
1636                 EVP_PKEY *pktmp;
1637                 pktmp = X509_get_pubkey(peer);
1638                 BIO_printf(bio,"Server public key is %d bit\n",
1639                                                          EVP_PKEY_bits(pktmp));
1640                 EVP_PKEY_free(pktmp);
1641         }
1642 #ifndef OPENSSL_NO_COMP
1643         comp=SSL_get_current_compression(s);
1644         expansion=SSL_get_current_expansion(s);
1645         BIO_printf(bio,"Compression: %s\n",
1646                 comp ? SSL_COMP_get_name(comp) : "NONE");
1647         BIO_printf(bio,"Expansion: %s\n",
1648                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1649 #endif
1650         SSL_SESSION_print(bio,SSL_get_session(s));
1651         BIO_printf(bio,"---\n");
1652         if (peer != NULL)
1653                 X509_free(peer);
1654         /* flush, or debugging output gets mixed with http response */
1655         (void)BIO_flush(bio);
1656         }
1657
1658 #ifndef OPENSSL_NO_TLSEXT
1659
1660 static int ocsp_resp_cb(SSL *s, void *arg)
1661         {
1662         const unsigned char *p;
1663         int len;
1664         OCSP_RESPONSE *rsp;
1665         len = SSL_get_tlsext_status_ocsp_resp(s, &p);
1666         BIO_puts(arg, "OCSP response: ");
1667         if (!p)
1668                 {
1669                 BIO_puts(arg, "no response sent\n");
1670                 return 1;
1671                 }
1672         rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
1673         if (!rsp)
1674                 {
1675                 BIO_puts(arg, "response parse error\n");
1676                 BIO_dump_indent(arg, (char *)p, len, 4);
1677                 return 0;
1678                 }
1679         BIO_puts(arg, "\n======================================\n");
1680         OCSP_RESPONSE_print(arg, rsp, 0);
1681         BIO_puts(arg, "======================================\n");
1682         OCSP_RESPONSE_free(rsp);
1683         return 1;
1684         }
1685
1686 #endif