crypto/openssl/apps/s_client.c

   1 /* apps/s_client.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111
 112 #include <assert.h>
 113 #include <stdio.h>
 114 #include <stdlib.h>
 115 #include <string.h>
 116 #include <openssl/e_os2.h>
 117 #ifdef OPENSSL_NO_STDIO
 118 #define APPS_WIN16
 119 #endif
 120
 121 /* With IPv6, it looks like Digital has mixed up the proper order of
 122    recursive header file inclusion, resulting in the compiler complaining
 123    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 124    is needed to have fileno() declared correctly...  So let's define u_int */
 125 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 126 #define __U_INT
 127 typedef unsigned int u_int;
 128 #endif
 129
 130 #define USE_SOCKETS
 131 #include "apps.h"
 132 #include <openssl/x509.h>
 133 #include <openssl/ssl.h>
 134 #include <openssl/err.h>
 135 #include <openssl/pem.h>
 136 #include <openssl/rand.h>
 137 #include <openssl/ocsp.h>
 138 #include "s_apps.h"
 139 #include "timeouts.h"
 140
 141 #ifdef OPENSSL_SYS_WINCE
 142 /* Windows CE incorrectly defines fileno as returning void*, so to avoid problems below... */
 143 #ifdef fileno
 144 #undef fileno
 145 #endif
 146 #define fileno(a) (int)_fileno(a)
 147 #endif
 148
 149
 150 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 151 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 152 #undef FIONBIO
 153 #endif
 154
 155 #undef PROG
 156 #define PROG    s_client_main
 157
 158 /*#define SSL_HOST_NAME "www.netscape.com" */
 159 /*#define SSL_HOST_NAME "193.118.187.102" */
 160 #define SSL_HOST_NAME   "localhost"
 161
 162 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 163
 164 #undef BUFSIZZ
 165 #define BUFSIZZ 1024*8
 166
 167 extern int verify_depth;
 168 extern int verify_error;
 169
 170 #ifdef FIONBIO
 171 static int c_nbio=0;
 172 #endif
 173 static int c_Pause=0;
 174 static int c_debug=0;
 175 #ifndef OPENSSL_NO_TLSEXT
 176 static int c_tlsextdebug=0;
 177 static int c_status_req=0;
 178 #endif
 179 static int c_msg=0;
 180 static int c_showcerts=0;
 181
 182 static void sc_usage(void);
 183 static void print_stuff(BIO *berr,SSL *con,int full);
 184 #ifndef OPENSSL_NO_TLSEXT
 185 static int ocsp_resp_cb(SSL *s, void *arg);
 186 #endif
 187 static BIO *bio_c_out=NULL;
 188 static int c_quiet=0;
 189 static int c_ign_eof=0;
 190
 191 static void sc_usage(void)
 192         {
 193         BIO_printf(bio_err,"usage: s_client args\n");
 194         BIO_printf(bio_err,"\n");
 195         BIO_printf(bio_err," -host host     - use -connect instead\n");
 196         BIO_printf(bio_err," -port port     - use -connect instead\n");
 197         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 198
 199         BIO_printf(bio_err," -verify depth - turn on peer certificate verification\n");
 200         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 201         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 202         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 203         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 204         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 205         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 206         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 207         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 208         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 209         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 210         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 211         BIO_printf(bio_err," -debug        - extra output\n");
 212 #ifdef WATT32
 213         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 214 #endif
 215         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 216         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 217         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 218 #ifdef FIONBIO
 219         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 220 #endif
 221         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 222         BIO_printf(bio_err," -quiet        - no s_client output\n");
 223         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 224         BIO_printf(bio_err," -no_ign_eof   - don't ignore input eof\n");
 225         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 226         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 227         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 228         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 229         BIO_printf(bio_err," -mtu          - set the link layer MTU\n");
 230         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 231         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 232         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 233         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 234         BIO_printf(bio_err,"                 command to see what is available\n");
 235         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 236         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 237         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 238         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
 239         BIO_printf(bio_err,"                 are supported.\n");
 240 #ifndef OPENSSL_NO_ENGINE
 241         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 242 #endif
 243         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 244         BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
 245         BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
 246 #ifndef OPENSSL_NO_TLSEXT
 247         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 248         BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
 249         BIO_printf(bio_err," -status           - request certificate status from server\n");
 250         BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
 251 #endif
 252         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
 253         }
 254
 255 #ifndef OPENSSL_NO_TLSEXT
 256
 257 /* This is a context that we pass to callbacks */
 258 typedef struct tlsextctx_st {
 259    BIO * biodebug;
 260    int ack;
 261 } tlsextctx;
 262
 263
 264 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 265         {
 266         tlsextctx * p = (tlsextctx *) arg;
 267         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 268         if (SSL_get_servername_type(s) != -1)
 269                 p->ack = !SSL_session_reused(s) && hn != NULL;
 270         else
 271                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 272
 273         return SSL_TLSEXT_ERR_OK;
 274         }
 275 #endif
 276 enum
 277 {
 278         PROTO_OFF       = 0,
 279         PROTO_SMTP,
 280         PROTO_POP3,
 281         PROTO_IMAP,
 282         PROTO_FTP,
 283         PROTO_XMPP
 284 };
 285
 286 int MAIN(int, char **);
 287
 288 int MAIN(int argc, char **argv)
 289         {
 290         int off=0, clr = 0;
 291         SSL *con=NULL,*con2=NULL;
 292         X509_STORE *store = NULL;
 293         int s,k,width,state=0;
 294         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 295         int cbuf_len,cbuf_off;
 296         int sbuf_len,sbuf_off;
 297         fd_set readfds,writefds;
 298         short port=PORT;
 299         int full_log=1;
 300         char *host=SSL_HOST_NAME;
 301         char *cert_file=NULL,*key_file=NULL;
 302         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 303         char *passarg = NULL, *pass = NULL;
 304         X509 *cert = NULL;
 305         EVP_PKEY *key = NULL;
 306         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 307         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 308         int crlf=0;
 309         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 310         SSL_CTX *ctx=NULL;
 311         int ret=1,in_init=1,i,nbio_test=0;
 312         int starttls_proto = PROTO_OFF;
 313         int prexit = 0, vflags = 0;
 314         SSL_METHOD *meth=NULL;
 315 #ifdef sock_type
 316 #undef sock_type
 317 #endif
 318         int sock_type=SOCK_STREAM;
 319         BIO *sbio;
 320         char *inrand=NULL;
 321         int mbuf_len=0;
 322         struct timeval timeout, *timeoutp;
 323 #ifndef OPENSSL_NO_ENGINE
 324         char *engine_id=NULL;
 325         char *ssl_client_engine_id=NULL;
 326         ENGINE *ssl_client_engine=NULL;
 327 #endif
 328         ENGINE *e=NULL;
 329 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
 330         struct timeval tv;
 331 #endif
 332
 333 #ifndef OPENSSL_NO_TLSEXT
 334         char *servername = NULL;
 335         tlsextctx tlsextcbp =
 336         {NULL,0};
 337 #endif
 338         char *sess_in = NULL;
 339         char *sess_out = NULL;
 340         struct sockaddr peer;
 341         int peerlen = sizeof(peer);
 342         int enable_timeouts = 0 ;
 343         long socket_mtu = 0;
 344 #ifndef OPENSSL_NO_JPAKE
 345         char *jpake_secret = NULL;
 346 #endif
 347
 348         meth=SSLv23_client_method();
 349
 350         apps_startup();
 351         c_Pause=0;
 352         c_quiet=0;
 353         c_ign_eof=0;
 354         c_debug=0;
 355         c_msg=0;
 356         c_showcerts=0;
 357
 358         if (bio_err == NULL)
 359                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 360
 361         if (!load_config(bio_err, NULL))
 362                 goto end;
 363
 364         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 365                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 366                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 367                 {
 368                 BIO_printf(bio_err,"out of memory\n");
 369                 goto end;
 370                 }
 371
 372         verify_depth=0;
 373         verify_error=X509_V_OK;
 374 #ifdef FIONBIO
 375         c_nbio=0;
 376 #endif
 377
 378         argc--;
 379         argv++;
 380         while (argc >= 1)
 381                 {
 382                 if      (strcmp(*argv,"-host") == 0)
 383                         {
 384                         if (--argc < 1) goto bad;
 385                         host= *(++argv);
 386                         }
 387                 else if (strcmp(*argv,"-port") == 0)
 388                         {
 389                         if (--argc < 1) goto bad;
 390                         port=atoi(*(++argv));
 391                         if (port == 0) goto bad;
 392                         }
 393                 else if (strcmp(*argv,"-connect") == 0)
 394                         {
 395                         if (--argc < 1) goto bad;
 396                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 397                                 goto bad;
 398                         }
 399                 else if (strcmp(*argv,"-verify") == 0)
 400                         {
 401                         verify=SSL_VERIFY_PEER;
 402                         if (--argc < 1) goto bad;
 403                         verify_depth=atoi(*(++argv));
 404                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 405                         }
 406                 else if (strcmp(*argv,"-cert") == 0)
 407                         {
 408                         if (--argc < 1) goto bad;
 409                         cert_file= *(++argv);
 410                         }
 411                 else if (strcmp(*argv,"-sess_out") == 0)
 412                         {
 413                         if (--argc < 1) goto bad;
 414                         sess_out = *(++argv);
 415                         }
 416                 else if (strcmp(*argv,"-sess_in") == 0)
 417                         {
 418                         if (--argc < 1) goto bad;
 419                         sess_in = *(++argv);
 420                         }
 421                 else if (strcmp(*argv,"-certform") == 0)
 422                         {
 423                         if (--argc < 1) goto bad;
 424                         cert_format = str2fmt(*(++argv));
 425                         }
 426                 else if (strcmp(*argv,"-crl_check") == 0)
 427                         vflags |= X509_V_FLAG_CRL_CHECK;
 428                 else if (strcmp(*argv,"-crl_check_all") == 0)
 429                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 430                 else if (strcmp(*argv,"-prexit") == 0)
 431                         prexit=1;
 432                 else if (strcmp(*argv,"-crlf") == 0)
 433                         crlf=1;
 434                 else if (strcmp(*argv,"-quiet") == 0)
 435                         {
 436                         c_quiet=1;
 437                         c_ign_eof=1;
 438                         }
 439                 else if (strcmp(*argv,"-ign_eof") == 0)
 440                         c_ign_eof=1;
 441                 else if (strcmp(*argv,"-no_ign_eof") == 0)
 442                         c_ign_eof=0;
 443                 else if (strcmp(*argv,"-pause") == 0)
 444                         c_Pause=1;
 445                 else if (strcmp(*argv,"-debug") == 0)
 446                         c_debug=1;
 447 #ifndef OPENSSL_NO_TLSEXT
 448                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 449                         c_tlsextdebug=1;
 450                 else if (strcmp(*argv,"-status") == 0)
 451                         c_status_req=1;
 452 #endif
 453 #ifdef WATT32
 454                 else if (strcmp(*argv,"-wdebug") == 0)
 455                         dbug_init();
 456 #endif
 457                 else if (strcmp(*argv,"-msg") == 0)
 458                         c_msg=1;
 459                 else if (strcmp(*argv,"-showcerts") == 0)
 460                         c_showcerts=1;
 461                 else if (strcmp(*argv,"-nbio_test") == 0)
 462                         nbio_test=1;
 463                 else if (strcmp(*argv,"-state") == 0)
 464                         state=1;
 465 #ifndef OPENSSL_NO_SSL2
 466                 else if (strcmp(*argv,"-ssl2") == 0)
 467                         meth=SSLv2_client_method();
 468 #endif
 469 #ifndef OPENSSL_NO_SSL3
 470                 else if (strcmp(*argv,"-ssl3") == 0)
 471                         meth=SSLv3_client_method();
 472 #endif
 473 #ifndef OPENSSL_NO_TLS1
 474                 else if (strcmp(*argv,"-tls1") == 0)
 475                         meth=TLSv1_client_method();
 476 #endif
 477 #ifndef OPENSSL_NO_DTLS1
 478                 else if (strcmp(*argv,"-dtls1") == 0)
 479                         {
 480                         meth=DTLSv1_client_method();
 481                         sock_type=SOCK_DGRAM;
 482                         }
 483                 else if (strcmp(*argv,"-timeout") == 0)
 484                         enable_timeouts=1;
 485                 else if (strcmp(*argv,"-mtu") == 0)
 486                         {
 487                         if (--argc < 1) goto bad;
 488                         socket_mtu = atol(*(++argv));
 489                         }
 490 #endif
 491                 else if (strcmp(*argv,"-bugs") == 0)
 492                         bugs=1;
 493                 else if (strcmp(*argv,"-keyform") == 0)
 494                         {
 495                         if (--argc < 1) goto bad;
 496                         key_format = str2fmt(*(++argv));
 497                         }
 498                 else if (strcmp(*argv,"-pass") == 0)
 499                         {
 500                         if (--argc < 1) goto bad;
 501                         passarg = *(++argv);
 502                         }
 503                 else if (strcmp(*argv,"-key") == 0)
 504                         {
 505                         if (--argc < 1) goto bad;
 506                         key_file= *(++argv);
 507                         }
 508                 else if (strcmp(*argv,"-reconnect") == 0)
 509                         {
 510                         reconnect=5;
 511                         }
 512                 else if (strcmp(*argv,"-CApath") == 0)
 513                         {
 514                         if (--argc < 1) goto bad;
 515                         CApath= *(++argv);
 516                         }
 517                 else if (strcmp(*argv,"-CAfile") == 0)
 518                         {
 519                         if (--argc < 1) goto bad;
 520                         CAfile= *(++argv);
 521                         }
 522                 else if (strcmp(*argv,"-no_tls1") == 0)
 523                         off|=SSL_OP_NO_TLSv1;
 524                 else if (strcmp(*argv,"-no_ssl3") == 0)
 525                         off|=SSL_OP_NO_SSLv3;
 526                 else if (strcmp(*argv,"-no_ssl2") == 0)
 527                         off|=SSL_OP_NO_SSLv2;
 528 #ifndef OPENSSL_NO_TLSEXT
 529                 else if (strcmp(*argv,"-no_ticket") == 0)
 530                         { off|=SSL_OP_NO_TICKET; }
 531 #endif
 532                 else if (strcmp(*argv,"-serverpref") == 0)
 533                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 534                 else if (strcmp(*argv,"-legacy_renegotiation") == 0)
 535                         off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
 536                 else if (strcmp(*argv,"-legacy_server_connect") == 0)
 537                         { off|=SSL_OP_LEGACY_SERVER_CONNECT; }
 538                 else if (strcmp(*argv,"-no_legacy_server_connect") == 0)
 539                         { clr|=SSL_OP_LEGACY_SERVER_CONNECT; }
 540                 else if (strcmp(*argv,"-cipher") == 0)
 541                         {
 542                         if (--argc < 1) goto bad;
 543                         cipher= *(++argv);
 544                         }
 545 #ifdef FIONBIO
 546                 else if (strcmp(*argv,"-nbio") == 0)
 547                         { c_nbio=1; }
 548 #endif
 549                 else if (strcmp(*argv,"-starttls") == 0)
 550                         {
 551                         if (--argc < 1) goto bad;
 552                         ++argv;
 553                         if (strcmp(*argv,"smtp") == 0)
 554                                 starttls_proto = PROTO_SMTP;
 555                         else if (strcmp(*argv,"pop3") == 0)
 556                                 starttls_proto = PROTO_POP3;
 557                         else if (strcmp(*argv,"imap") == 0)
 558                                 starttls_proto = PROTO_IMAP;
 559                         else if (strcmp(*argv,"ftp") == 0)
 560                                 starttls_proto = PROTO_FTP;
 561                         else if (strcmp(*argv, "xmpp") == 0)
 562                                 starttls_proto = PROTO_XMPP;
 563                         else
 564                                 goto bad;
 565                         }
 566 #ifndef OPENSSL_NO_ENGINE
 567                 else if (strcmp(*argv,"-engine") == 0)
 568                         {
 569                         if (--argc < 1) goto bad;
 570                         engine_id = *(++argv);
 571                         }
 572                 else if (strcmp(*argv,"-ssl_client_engine") == 0)
 573                         {
 574                         if (--argc < 1) goto bad;
 575                         ssl_client_engine_id = *(++argv);
 576                         }
 577 #endif
 578                 else if (strcmp(*argv,"-rand") == 0)
 579                         {
 580                         if (--argc < 1) goto bad;
 581                         inrand= *(++argv);
 582                         }
 583 #ifndef OPENSSL_NO_TLSEXT
 584                 else if (strcmp(*argv,"-servername") == 0)
 585                         {
 586                         if (--argc < 1) goto bad;
 587                         servername= *(++argv);
 588                         /* meth=TLSv1_client_method(); */
 589                         }
 590 #endif
 591 #ifndef OPENSSL_NO_JPAKE
 592                 else if (strcmp(*argv,"-jpake") == 0)
 593                         {
 594                         if (--argc < 1) goto bad;
 595                         jpake_secret = *++argv;
 596                         }
 597 #endif
 598                 else
 599                         {
 600                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 601                         badop=1;
 602                         break;
 603                         }
 604                 argc--;
 605                 argv++;
 606                 }
 607         if (badop)
 608                 {
 609 bad:
 610                 sc_usage();
 611                 goto end;
 612                 }
 613
 614         OpenSSL_add_ssl_algorithms();
 615         SSL_load_error_strings();
 616
 617 #ifndef OPENSSL_NO_ENGINE
 618         e = setup_engine(bio_err, engine_id, 1);
 619         if (ssl_client_engine_id)
 620                 {
 621                 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
 622                 if (!ssl_client_engine)
 623                         {
 624                         BIO_printf(bio_err,
 625                                         "Error getting client auth engine\n");
 626                         goto end;
 627                         }
 628                 }
 629 #endif
 630         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
 631                 {
 632                 BIO_printf(bio_err, "Error getting password\n");
 633                 goto end;
 634                 }
 635
 636         if (key_file == NULL)
 637                 key_file = cert_file;
 638
 639
 640         if (key_file)
 641
 642                 {
 643
 644                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
 645                                "client certificate private key file");
 646                 if (!key)
 647                         {
 648                         ERR_print_errors(bio_err);
 649                         goto end;
 650                         }
 651
 652                 }
 653
 654         if (cert_file)
 655
 656                 {
 657                 cert = load_cert(bio_err,cert_file,cert_format,
 658                                 NULL, e, "client certificate file");
 659
 660                 if (!cert)
 661                         {
 662                         ERR_print_errors(bio_err);
 663                         goto end;
 664                         }
 665                 }
 666
 667         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 668                 && !RAND_status())
 669                 {
 670                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 671                 }
 672         if (inrand != NULL)
 673                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 674                         app_RAND_load_files(inrand));
 675
 676         if (bio_c_out == NULL)
 677                 {
 678                 if (c_quiet && !c_debug && !c_msg)
 679                         {
 680                         bio_c_out=BIO_new(BIO_s_null());
 681                         }
 682                 else
 683                         {
 684                         if (bio_c_out == NULL)
 685                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 686                         }
 687                 }
 688
 689         ctx=SSL_CTX_new(meth);
 690         if (ctx == NULL)
 691                 {
 692                 ERR_print_errors(bio_err);
 693                 goto end;
 694                 }
 695
 696 #ifndef OPENSSL_NO_ENGINE
 697         if (ssl_client_engine)
 698                 {
 699                 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine))
 700                         {
 701                         BIO_puts(bio_err, "Error setting client auth engine\n");
 702                         ERR_print_errors(bio_err);
 703                         ENGINE_free(ssl_client_engine);
 704                         goto end;
 705                         }
 706                 ENGINE_free(ssl_client_engine);
 707                 }
 708 #endif
 709
 710         if (bugs)
 711                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 712         else
 713                 SSL_CTX_set_options(ctx,off);
 714
 715         if (clr)
 716                 SSL_CTX_clear_options(ctx, clr);
 717         /* DTLS: partial reads end up discarding unread UDP bytes :-(
 718          * Setting read ahead solves this problem.
 719          */
 720         if (sock_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
 721
 722         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 723         if (cipher != NULL)
 724                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 725                 BIO_printf(bio_err,"error setting cipher list\n");
 726                 ERR_print_errors(bio_err);
 727                 goto end;
 728         }
 729 #if 0
 730         else
 731                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 732 #endif
 733
 734         SSL_CTX_set_verify(ctx,verify,verify_callback);
 735         if (!set_cert_key_stuff(ctx,cert,key))
 736                 goto end;
 737
 738         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 739                 (!SSL_CTX_set_default_verify_paths(ctx)))
 740                 {
 741                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 742                 ERR_print_errors(bio_err);
 743                 /* goto end; */
 744                 }
 745
 746         store = SSL_CTX_get_cert_store(ctx);
 747         X509_STORE_set_flags(store, vflags);
 748 #ifndef OPENSSL_NO_TLSEXT
 749         if (servername != NULL)
 750                 {
 751                 tlsextcbp.biodebug = bio_err;
 752                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
 753                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
 754                 }
 755 #endif
 756
 757         con=SSL_new(ctx);
 758         if (sess_in)
 759                 {
 760                 SSL_SESSION *sess;
 761                 BIO *stmp = BIO_new_file(sess_in, "r");
 762                 if (!stmp)
 763                         {
 764                         BIO_printf(bio_err, "Can't open session file %s\n",
 765                                                 sess_in);
 766                         ERR_print_errors(bio_err);
 767                         goto end;
 768                         }
 769                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
 770                 BIO_free(stmp);
 771                 if (!sess)
 772                         {
 773                         BIO_printf(bio_err, "Can't open session file %s\n",
 774                                                 sess_in);
 775                         ERR_print_errors(bio_err);
 776                         goto end;
 777                         }
 778                 SSL_set_session(con, sess);
 779                 SSL_SESSION_free(sess);
 780                 }
 781 #ifndef OPENSSL_NO_TLSEXT
 782         if (servername != NULL)
 783                 {
 784                 if (!SSL_set_tlsext_host_name(con,servername))
 785                         {
 786                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
 787                         ERR_print_errors(bio_err);
 788                         goto end;
 789                         }
 790                 }
 791 #endif
 792
 793 #ifndef OPENSSL_NO_KRB5
 794         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 795                 {
 796                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 797                 }
 798 #endif  /* OPENSSL_NO_KRB5  */
 799 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 800
 801 re_start:
 802
 803         if (init_client(&s,host,port,sock_type) == 0)
 804                 {
 805                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 806                 SHUTDOWN(s);
 807                 goto end;
 808                 }
 809         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 810
 811 #ifdef FIONBIO
 812         if (c_nbio)
 813                 {
 814                 unsigned long l=1;
 815                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 816                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 817                         {
 818                         ERR_print_errors(bio_err);
 819                         goto end;
 820                         }
 821                 }
 822 #endif
 823         if (c_Pause & 0x01) con->debug=1;
 824
 825         if ( SSL_version(con) == DTLS1_VERSION)
 826                 {
 827
 828                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
 829                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
 830                         {
 831                         BIO_printf(bio_err, "getsockname:errno=%d\n",
 832                                 get_last_socket_error());
 833                         SHUTDOWN(s);
 834                         goto end;
 835                         }
 836
 837                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
 838
 839                 if ( enable_timeouts)
 840                         {
 841                         timeout.tv_sec = 0;
 842                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
 843                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
 844
 845                         timeout.tv_sec = 0;
 846                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
 847                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
 848                         }
 849
 850                 if (socket_mtu > 28)
 851                         {
 852                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
 853                         SSL_set_mtu(con, socket_mtu - 28);
 854                         }
 855                 else
 856                         /* want to do MTU discovery */
 857                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
 858                 }
 859         else
 860                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
 861
 862         if (nbio_test)
 863                 {
 864                 BIO *test;
 865
 866                 test=BIO_new(BIO_f_nbio_test());
 867                 sbio=BIO_push(test,sbio);
 868                 }
 869
 870         if (c_debug)
 871                 {
 872                 con->debug=1;
 873                 BIO_set_callback(sbio,bio_dump_callback);
 874                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
 875                 }
 876         if (c_msg)
 877                 {
 878                 SSL_set_msg_callback(con, msg_cb);
 879                 SSL_set_msg_callback_arg(con, bio_c_out);
 880                 }
 881 #ifndef OPENSSL_NO_TLSEXT
 882         if (c_tlsextdebug)
 883                 {
 884                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
 885                 SSL_set_tlsext_debug_arg(con, bio_c_out);
 886                 }
 887         if (c_status_req)
 888                 {
 889                 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
 890                 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
 891                 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
 892 #if 0
 893 {
 894 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
 895 OCSP_RESPID *id = OCSP_RESPID_new();
 896 id->value.byKey = ASN1_OCTET_STRING_new();
 897 id->type = V_OCSP_RESPID_KEY;
 898 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
 899 sk_OCSP_RESPID_push(ids, id);
 900 SSL_set_tlsext_status_ids(con, ids);
 901 }
 902 #endif
 903                 }
 904 #endif
 905 #ifndef OPENSSL_NO_JPAKE
 906         if (jpake_secret)
 907                 jpake_client_auth(bio_c_out, sbio, jpake_secret);
 908 #endif
 909
 910         SSL_set_bio(con,sbio,sbio);
 911         SSL_set_connect_state(con);
 912
 913         /* ok, lets connect */
 914         width=SSL_get_fd(con)+1;
 915
 916         read_tty=1;
 917         write_tty=0;
 918         tty_on=0;
 919         read_ssl=1;
 920         write_ssl=1;
 921
 922         cbuf_len=0;
 923         cbuf_off=0;
 924         sbuf_len=0;
 925         sbuf_off=0;
 926
 927         /* This is an ugly hack that does a lot of assumptions */
 928         /* We do have to handle multi-line responses which may come
 929            in a single packet or not. We therefore have to use
 930            BIO_gets() which does need a buffering BIO. So during
 931            the initial chitchat we do push a buffering BIO into the
 932            chain that is removed again later on to not disturb the
 933            rest of the s_client operation. */
 934         if (starttls_proto == PROTO_SMTP)
 935                 {
 936                 int foundit=0;
 937                 BIO *fbio = BIO_new(BIO_f_buffer());
 938                 BIO_push(fbio, sbio);
 939                 /* wait for multi-line response to end from SMTP */
 940                 do
 941                         {
 942                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 943                         }
 944                 while (mbuf_len>3 && mbuf[3]=='-');
 945                 /* STARTTLS command requires EHLO... */
 946                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
 947                 (void)BIO_flush(fbio);
 948                 /* wait for multi-line response to end EHLO SMTP response */
 949                 do
 950                         {
 951                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 952                         if (strstr(mbuf,"STARTTLS"))
 953                                 foundit=1;
 954                         }
 955                 while (mbuf_len>3 && mbuf[3]=='-');
 956                 (void)BIO_flush(fbio);
 957                 BIO_pop(fbio);
 958                 BIO_free(fbio);
 959                 if (!foundit)
 960                         BIO_printf(bio_err,
 961                                    "didn't found starttls in server response,"
 962                                    " try anyway...\n");
 963                 BIO_printf(sbio,"STARTTLS\r\n");
 964                 BIO_read(sbio,sbuf,BUFSIZZ);
 965                 }
 966         else if (starttls_proto == PROTO_POP3)
 967                 {
 968                 BIO_read(sbio,mbuf,BUFSIZZ);
 969                 BIO_printf(sbio,"STLS\r\n");
 970                 BIO_read(sbio,sbuf,BUFSIZZ);
 971                 }
 972         else if (starttls_proto == PROTO_IMAP)
 973                 {
 974                 int foundit=0;
 975                 BIO *fbio = BIO_new(BIO_f_buffer());
 976                 BIO_push(fbio, sbio);
 977                 BIO_gets(fbio,mbuf,BUFSIZZ);
 978                 /* STARTTLS command requires CAPABILITY... */
 979                 BIO_printf(fbio,". CAPABILITY\r\n");
 980                 (void)BIO_flush(fbio);
 981                 /* wait for multi-line CAPABILITY response */
 982                 do
 983                         {
 984                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 985                         if (strstr(mbuf,"STARTTLS"))
 986                                 foundit=1;
 987                         }
 988                 while (mbuf_len>3 && mbuf[0]!='.');
 989                 (void)BIO_flush(fbio);
 990                 BIO_pop(fbio);
 991                 BIO_free(fbio);
 992                 if (!foundit)
 993                         BIO_printf(bio_err,
 994                                    "didn't found STARTTLS in server response,"
 995                                    " try anyway...\n");
 996                 BIO_printf(sbio,". STARTTLS\r\n");
 997                 BIO_read(sbio,sbuf,BUFSIZZ);
 998                 }
 999         else if (starttls_proto == PROTO_FTP)
1000                 {
1001                 BIO *fbio = BIO_new(BIO_f_buffer());
1002                 BIO_push(fbio, sbio);
1003                 /* wait for multi-line response to end from FTP */
1004                 do
1005                         {
1006                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1007                         }
1008                 while (mbuf_len>3 && mbuf[3]=='-');
1009                 (void)BIO_flush(fbio);
1010                 BIO_pop(fbio);
1011                 BIO_free(fbio);
1012                 BIO_printf(sbio,"AUTH TLS\r\n");
1013                 BIO_read(sbio,sbuf,BUFSIZZ);
1014                 }
1015         if (starttls_proto == PROTO_XMPP)
1016                 {
1017                 int seen = 0;
1018                 BIO_printf(sbio,"<stream:stream "
1019                     "xmlns:stream='http://etherx.jabber.org/streams' "
1020                     "xmlns='jabber:client' to='%s' version='1.0'>", host);
1021                 seen = BIO_read(sbio,mbuf,BUFSIZZ);
1022                 mbuf[seen] = 0;
1023                 while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'"))
1024                         {
1025                         if (strstr(mbuf, "/stream:features>"))
1026                                 goto shut;
1027                         seen = BIO_read(sbio,mbuf,BUFSIZZ);
1028                         mbuf[seen] = 0;
1029                         }
1030                 BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
1031                 seen = BIO_read(sbio,sbuf,BUFSIZZ);
1032                 sbuf[seen] = 0;
1033                 if (!strstr(sbuf, "<proceed"))
1034                         goto shut;
1035                 mbuf[0] = 0;
1036                 }
1037
1038         for (;;)
1039                 {
1040                 FD_ZERO(&readfds);
1041                 FD_ZERO(&writefds);
1042
1043                 if ((SSL_version(con) == DTLS1_VERSION) &&
1044                         DTLSv1_get_timeout(con, &timeout))
1045                         timeoutp = &timeout;
1046                 else
1047                         timeoutp = NULL;
1048
1049                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1050                         {
1051                         in_init=1;
1052                         tty_on=0;
1053                         }
1054                 else
1055                         {
1056                         tty_on=1;
1057                         if (in_init)
1058                                 {
1059                                 in_init=0;
1060                                 if (sess_out)
1061                                         {
1062                                         BIO *stmp = BIO_new_file(sess_out, "w");
1063                                         if (stmp)
1064                                                 {
1065                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1066                                                 BIO_free(stmp);
1067                                                 }
1068                                         else
1069                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1070                                         }
1071                                 print_stuff(bio_c_out,con,full_log);
1072                                 if (full_log > 0) full_log--;
1073
1074                                 if (starttls_proto)
1075                                         {
1076                                         BIO_printf(bio_err,"%s",mbuf);
1077                                         /* We don't need to know any more */
1078                                         starttls_proto = PROTO_OFF;
1079                                         }
1080
1081                                 if (reconnect)
1082                                         {
1083                                         reconnect--;
1084                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1085                                         SSL_shutdown(con);
1086                                         SSL_set_connect_state(con);
1087                                         SHUTDOWN(SSL_get_fd(con));
1088                                         goto re_start;
1089                                         }
1090                                 }
1091                         }
1092
1093                 ssl_pending = read_ssl && SSL_pending(con);
1094
1095                 if (!ssl_pending)
1096                         {
1097 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)
1098                         if (tty_on)
1099                                 {
1100                                 if (read_tty)  FD_SET(fileno(stdin),&readfds);
1101                                 if (write_tty) FD_SET(fileno(stdout),&writefds);
1102                                 }
1103                         if (read_ssl)
1104                                 FD_SET(SSL_get_fd(con),&readfds);
1105                         if (write_ssl)
1106                                 FD_SET(SSL_get_fd(con),&writefds);
1107 #else
1108                         if(!tty_on || !write_tty) {
1109                                 if (read_ssl)
1110                                         FD_SET(SSL_get_fd(con),&readfds);
1111                                 if (write_ssl)
1112                                         FD_SET(SSL_get_fd(con),&writefds);
1113                         }
1114 #endif
1115 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1116                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1117
1118                         /* Note: under VMS with SOCKETSHR the second parameter
1119                          * is currently of type (int *) whereas under other
1120                          * systems it is (void *) if you don't have a cast it
1121                          * will choke the compiler: if you do have a cast then
1122                          * you can either go for (int *) or (void *).
1123                          */
1124 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1125                         /* Under Windows/DOS we make the assumption that we can
1126                          * always write to the tty: therefore if we need to
1127                          * write to the tty we just fall through. Otherwise
1128                          * we timeout the select every second and see if there
1129                          * are any keypresses. Note: this is a hack, in a proper
1130                          * Windows application we wouldn't do this.
1131                          */
1132                         i=0;
1133                         if(!write_tty) {
1134                                 if(read_tty) {
1135                                         tv.tv_sec = 1;
1136                                         tv.tv_usec = 0;
1137                                         i=select(width,(void *)&readfds,(void *)&writefds,
1138                                                  NULL,&tv);
1139 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1140                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1141 #else
1142                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1143 #endif
1144                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1145                                          NULL,timeoutp);
1146                         }
1147 #elif defined(OPENSSL_SYS_NETWARE)
1148                         if(!write_tty) {
1149                                 if(read_tty) {
1150                                         tv.tv_sec = 1;
1151                                         tv.tv_usec = 0;
1152                                         i=select(width,(void *)&readfds,(void *)&writefds,
1153                                                 NULL,&tv);
1154                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1155                                         NULL,timeoutp);
1156                         }
1157 #else
1158                         i=select(width,(void *)&readfds,(void *)&writefds,
1159                                  NULL,timeoutp);
1160 #endif
1161                         if ( i < 0)
1162                                 {
1163                                 BIO_printf(bio_err,"bad select %d\n",
1164                                 get_last_socket_error());
1165                                 goto shut;
1166                                 /* goto end; */
1167                                 }
1168                         }
1169
1170                 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
1171                         {
1172                         BIO_printf(bio_err,"TIMEOUT occured\n");
1173                         }
1174
1175                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1176                         {
1177                         k=SSL_write(con,&(cbuf[cbuf_off]),
1178                                 (unsigned int)cbuf_len);
1179                         switch (SSL_get_error(con,k))
1180                                 {
1181                         case SSL_ERROR_NONE:
1182                                 cbuf_off+=k;
1183                                 cbuf_len-=k;
1184                                 if (k <= 0) goto end;
1185                                 /* we have done a  write(con,NULL,0); */
1186                                 if (cbuf_len <= 0)
1187                                         {
1188                                         read_tty=1;
1189                                         write_ssl=0;
1190                                         }
1191                                 else /* if (cbuf_len > 0) */
1192                                         {
1193                                         read_tty=0;
1194                                         write_ssl=1;
1195                                         }
1196                                 break;
1197                         case SSL_ERROR_WANT_WRITE:
1198                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1199                                 write_ssl=1;
1200                                 read_tty=0;
1201                                 break;
1202                         case SSL_ERROR_WANT_READ:
1203                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1204                                 write_tty=0;
1205                                 read_ssl=1;
1206                                 write_ssl=0;
1207                                 break;
1208                         case SSL_ERROR_WANT_X509_LOOKUP:
1209                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1210                                 break;
1211                         case SSL_ERROR_ZERO_RETURN:
1212                                 if (cbuf_len != 0)
1213                                         {
1214                                         BIO_printf(bio_c_out,"shutdown\n");
1215                                         goto shut;
1216                                         }
1217                                 else
1218                                         {
1219                                         read_tty=1;
1220                                         write_ssl=0;
1221                                         break;
1222                                         }
1223
1224                         case SSL_ERROR_SYSCALL:
1225                                 if ((k != 0) || (cbuf_len != 0))
1226                                         {
1227                                         BIO_printf(bio_err,"write:errno=%d\n",
1228                                                 get_last_socket_error());
1229                                         goto shut;
1230                                         }
1231                                 else
1232                                         {
1233                                         read_tty=1;
1234                                         write_ssl=0;
1235                                         }
1236                                 break;
1237                         case SSL_ERROR_SSL:
1238                                 ERR_print_errors(bio_err);
1239                                 goto shut;
1240                                 }
1241                         }
1242 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
1243                 /* Assume Windows/DOS can always write */
1244                 else if (!ssl_pending && write_tty)
1245 #else
1246                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1247 #endif
1248                         {
1249 #ifdef CHARSET_EBCDIC
1250                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1251 #endif
1252                         i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
1253
1254                         if (i <= 0)
1255                                 {
1256                                 BIO_printf(bio_c_out,"DONE\n");
1257                                 goto shut;
1258                                 /* goto end; */
1259                                 }
1260
1261                         sbuf_len-=i;;
1262                         sbuf_off+=i;
1263                         if (sbuf_len <= 0)
1264                                 {
1265                                 read_ssl=1;
1266                                 write_tty=0;
1267                                 }
1268                         }
1269                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1270                         {
1271 #ifdef RENEG
1272 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1273 #endif
1274 #if 1
1275                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1276 #else
1277 /* Demo for pending and peek :-) */
1278                         k=SSL_read(con,sbuf,16);
1279 { char zbuf[10240];
1280 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1281 }
1282 #endif
1283
1284                         switch (SSL_get_error(con,k))
1285                                 {
1286                         case SSL_ERROR_NONE:
1287                                 if (k <= 0)
1288                                         goto end;
1289                                 sbuf_off=0;
1290                                 sbuf_len=k;
1291
1292                                 read_ssl=0;
1293                                 write_tty=1;
1294                                 break;
1295                         case SSL_ERROR_WANT_WRITE:
1296                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1297                                 write_ssl=1;
1298                                 read_tty=0;
1299                                 break;
1300                         case SSL_ERROR_WANT_READ:
1301                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1302                                 write_tty=0;
1303                                 read_ssl=1;
1304                                 if ((read_tty == 0) && (write_ssl == 0))
1305                                         write_ssl=1;
1306                                 break;
1307                         case SSL_ERROR_WANT_X509_LOOKUP:
1308                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1309                                 break;
1310                         case SSL_ERROR_SYSCALL:
1311                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
1312                                 goto shut;
1313                         case SSL_ERROR_ZERO_RETURN:
1314                                 BIO_printf(bio_c_out,"closed\n");
1315                                 goto shut;
1316                         case SSL_ERROR_SSL:
1317                                 ERR_print_errors(bio_err);
1318                                 goto shut;
1319                                 /* break; */
1320                                 }
1321                         }
1322
1323 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1324 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1325                 else if (_kbhit())
1326 #else
1327                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1328 #endif
1329 #elif defined (OPENSSL_SYS_NETWARE)
1330         else if (_kbhit())
1331 #else
1332                 else if (FD_ISSET(fileno(stdin),&readfds))
1333 #endif
1334                         {
1335                         if (crlf)
1336                                 {
1337                                 int j, lf_num;
1338
1339                                 i=read(fileno(stdin),cbuf,BUFSIZZ/2);
1340                                 lf_num = 0;
1341                                 /* both loops are skipped when i <= 0 */
1342                                 for (j = 0; j < i; j++)
1343                                         if (cbuf[j] == '\n')
1344                                                 lf_num++;
1345                                 for (j = i-1; j >= 0; j--)
1346                                         {
1347                                         cbuf[j+lf_num] = cbuf[j];
1348                                         if (cbuf[j] == '\n')
1349                                                 {
1350                                                 lf_num--;
1351                                                 i++;
1352                                                 cbuf[j+lf_num] = '\r';
1353                                                 }
1354                                         }
1355                                 assert(lf_num == 0);
1356                                 }
1357                         else
1358                                 i=read(fileno(stdin),cbuf,BUFSIZZ);
1359
1360                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1361                                 {
1362                                 BIO_printf(bio_err,"DONE\n");
1363                                 goto shut;
1364                                 }
1365
1366                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1367                                 {
1368                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1369                                 SSL_renegotiate(con);
1370                                 cbuf_len=0;
1371                                 }
1372                         else
1373                                 {
1374                                 cbuf_len=i;
1375                                 cbuf_off=0;
1376 #ifdef CHARSET_EBCDIC
1377                                 ebcdic2ascii(cbuf, cbuf, i);
1378 #endif
1379                                 }
1380
1381                         write_ssl=1;
1382                         read_tty=0;
1383                         }
1384                 }
1385 shut:
1386         SSL_shutdown(con);
1387         SHUTDOWN(SSL_get_fd(con));
1388         ret=0;
1389 end:
1390         if(prexit) print_stuff(bio_c_out,con,1);
1391         if (con != NULL) SSL_free(con);
1392         if (con2 != NULL) SSL_free(con2);
1393         if (ctx != NULL) SSL_CTX_free(ctx);
1394         if (cert)
1395                 X509_free(cert);
1396         if (key)
1397                 EVP_PKEY_free(key);
1398         if (pass)
1399                 OPENSSL_free(pass);
1400         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1401         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1402         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1403         if (bio_c_out != NULL)
1404                 {
1405                 BIO_free(bio_c_out);
1406                 bio_c_out=NULL;
1407                 }
1408         apps_shutdown();
1409         OPENSSL_EXIT(ret);
1410         }
1411
1412
1413 static void print_stuff(BIO *bio, SSL *s, int full)
1414         {
1415         X509 *peer=NULL;
1416         char *p;
1417         static const char *space="                ";
1418         char buf[BUFSIZ];
1419         STACK_OF(X509) *sk;
1420         STACK_OF(X509_NAME) *sk2;
1421         SSL_CIPHER *c;
1422         X509_NAME *xn;
1423         int j,i;
1424 #ifndef OPENSSL_NO_COMP
1425         const COMP_METHOD *comp, *expansion;
1426 #endif
1427
1428         if (full)
1429                 {
1430                 int got_a_chain = 0;
1431
1432                 sk=SSL_get_peer_cert_chain(s);
1433                 if (sk != NULL)
1434                         {
1435                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1436
1437                         BIO_printf(bio,"---\nCertificate chain\n");
1438                         for (i=0; i<sk_X509_num(sk); i++)
1439                                 {
1440                                 X509_NAME_oneline(X509_get_subject_name(
1441                                         sk_X509_value(sk,i)),buf,sizeof buf);
1442                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1443                                 X509_NAME_oneline(X509_get_issuer_name(
1444                                         sk_X509_value(sk,i)),buf,sizeof buf);
1445                                 BIO_printf(bio,"   i:%s\n",buf);
1446                                 if (c_showcerts)
1447                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1448                                 }
1449                         }
1450
1451                 BIO_printf(bio,"---\n");
1452                 peer=SSL_get_peer_certificate(s);
1453                 if (peer != NULL)
1454                         {
1455                         BIO_printf(bio,"Server certificate\n");
1456                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1457                                 PEM_write_bio_X509(bio,peer);
1458                         X509_NAME_oneline(X509_get_subject_name(peer),
1459                                 buf,sizeof buf);
1460                         BIO_printf(bio,"subject=%s\n",buf);
1461                         X509_NAME_oneline(X509_get_issuer_name(peer),
1462                                 buf,sizeof buf);
1463                         BIO_printf(bio,"issuer=%s\n",buf);
1464                         }
1465                 else
1466                         BIO_printf(bio,"no peer certificate available\n");
1467
1468                 sk2=SSL_get_client_CA_list(s);
1469                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1470                         {
1471                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1472                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1473                                 {
1474                                 xn=sk_X509_NAME_value(sk2,i);
1475                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1476                                 BIO_write(bio,buf,strlen(buf));
1477                                 BIO_write(bio,"\n",1);
1478                                 }
1479                         }
1480                 else
1481                         {
1482                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1483                         }
1484                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1485                 if (p != NULL)
1486                         {
1487                         /* This works only for SSL 2.  In later protocol
1488                          * versions, the client does not know what other
1489                          * ciphers (in addition to the one to be used
1490                          * in the current connection) the server supports. */
1491
1492                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1493                         j=i=0;
1494                         while (*p)
1495                                 {
1496                                 if (*p == ':')
1497                                         {
1498                                         BIO_write(bio,space,15-j%25);
1499                                         i++;
1500                                         j=0;
1501                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1502                                         }
1503                                 else
1504                                         {
1505                                         BIO_write(bio,p,1);
1506                                         j++;
1507                                         }
1508                                 p++;
1509                                 }
1510                         BIO_write(bio,"\n",1);
1511                         }
1512
1513                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1514                         BIO_number_read(SSL_get_rbio(s)),
1515                         BIO_number_written(SSL_get_wbio(s)));
1516                 }
1517         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1518         c=SSL_get_current_cipher(s);
1519         BIO_printf(bio,"%s, Cipher is %s\n",
1520                 SSL_CIPHER_get_version(c),
1521                 SSL_CIPHER_get_name(c));
1522         if (peer != NULL) {
1523                 EVP_PKEY *pktmp;
1524                 pktmp = X509_get_pubkey(peer);
1525                 BIO_printf(bio,"Server public key is %d bit\n",
1526                                                          EVP_PKEY_bits(pktmp));
1527                 EVP_PKEY_free(pktmp);
1528         }
1529         BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
1530                         SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
1531 #ifndef OPENSSL_NO_COMP
1532         comp=SSL_get_current_compression(s);
1533         expansion=SSL_get_current_expansion(s);
1534         BIO_printf(bio,"Compression: %s\n",
1535                 comp ? SSL_COMP_get_name(comp) : "NONE");
1536         BIO_printf(bio,"Expansion: %s\n",
1537                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1538 #endif
1539         SSL_SESSION_print(bio,SSL_get_session(s));
1540         BIO_printf(bio,"---\n");
1541         if (peer != NULL)
1542                 X509_free(peer);
1543         /* flush, or debugging output gets mixed with http response */
1544         (void)BIO_flush(bio);
1545         }
1546
1547 #ifndef OPENSSL_NO_TLSEXT
1548
1549 static int ocsp_resp_cb(SSL *s, void *arg)
1550         {
1551         const unsigned char *p;
1552         int len;
1553         OCSP_RESPONSE *rsp;
1554         len = SSL_get_tlsext_status_ocsp_resp(s, &p);
1555         BIO_puts(arg, "OCSP response: ");
1556         if (!p)
1557                 {
1558                 BIO_puts(arg, "no response sent\n");
1559                 return 1;
1560                 }
1561         rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
1562         if (!rsp)
1563                 {
1564                 BIO_puts(arg, "response parse error\n");
1565                 BIO_dump_indent(arg, (char *)p, len, 4);
1566                 return 0;
1567                 }
1568         BIO_puts(arg, "\n======================================\n");
1569         OCSP_RESPONSE_print(arg, rsp, 0);
1570         BIO_puts(arg, "======================================\n");
1571         OCSP_RESPONSE_free(rsp);
1572         return 1;
1573         }
1574 #endif  /* ndef OPENSSL_NO_TLSEXT */