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," -fallback_scsv - send TLS_FALLBACK_SCSV\n");
 230         BIO_printf(bio_err," -mtu          - set the link layer MTU\n");
 231         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 232         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 233         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 234         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 235         BIO_printf(bio_err,"                 command to see what is available\n");
 236         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 237         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 238         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 239         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
 240         BIO_printf(bio_err,"                 are supported.\n");
 241 #ifndef OPENSSL_NO_ENGINE
 242         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 243 #endif
 244         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 245         BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
 246         BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
 247 #ifndef OPENSSL_NO_TLSEXT
 248         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 249         BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
 250         BIO_printf(bio_err," -status           - request certificate status from server\n");
 251         BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
 252 #endif
 253         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
 254         }
 255
 256 #ifndef OPENSSL_NO_TLSEXT
 257
 258 /* This is a context that we pass to callbacks */
 259 typedef struct tlsextctx_st {
 260    BIO * biodebug;
 261    int ack;
 262 } tlsextctx;
 263
 264
 265 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 266         {
 267         tlsextctx * p = (tlsextctx *) arg;
 268         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 269         if (SSL_get_servername_type(s) != -1)
 270                 p->ack = !SSL_session_reused(s) && hn != NULL;
 271         else
 272                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 273
 274         return SSL_TLSEXT_ERR_OK;
 275         }
 276 #endif
 277 enum
 278 {
 279         PROTO_OFF       = 0,
 280         PROTO_SMTP,
 281         PROTO_POP3,
 282         PROTO_IMAP,
 283         PROTO_FTP,
 284         PROTO_XMPP
 285 };
 286
 287 int MAIN(int, char **);
 288
 289 int MAIN(int argc, char **argv)
 290         {
 291         int off=0, clr = 0;
 292         SSL *con=NULL,*con2=NULL;
 293         X509_STORE *store = NULL;
 294         int s,k,width,state=0;
 295         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 296         int cbuf_len,cbuf_off;
 297         int sbuf_len,sbuf_off;
 298         fd_set readfds,writefds;
 299         short port=PORT;
 300         int full_log=1;
 301         char *host=SSL_HOST_NAME;
 302         char *cert_file=NULL,*key_file=NULL;
 303         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 304         char *passarg = NULL, *pass = NULL;
 305         X509 *cert = NULL;
 306         EVP_PKEY *key = NULL;
 307         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 308         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 309         int crlf=0;
 310         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 311         SSL_CTX *ctx=NULL;
 312         int ret=1,in_init=1,i,nbio_test=0;
 313         int starttls_proto = PROTO_OFF;
 314         int prexit = 0, vflags = 0;
 315         SSL_METHOD *meth=NULL;
 316 #ifdef sock_type
 317 #undef sock_type
 318 #endif
 319         int sock_type=SOCK_STREAM;
 320         BIO *sbio;
 321         char *inrand=NULL;
 322         int mbuf_len=0;
 323         struct timeval timeout, *timeoutp;
 324 #ifndef OPENSSL_NO_ENGINE
 325         char *engine_id=NULL;
 326         char *ssl_client_engine_id=NULL;
 327         ENGINE *ssl_client_engine=NULL;
 328 #endif
 329         ENGINE *e=NULL;
 330 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
 331         struct timeval tv;
 332 #endif
 333
 334 #ifndef OPENSSL_NO_TLSEXT
 335         char *servername = NULL;
 336         tlsextctx tlsextcbp =
 337         {NULL,0};
 338 #endif
 339         char *sess_in = NULL;
 340         char *sess_out = NULL;
 341         struct sockaddr peer;
 342         int peerlen = sizeof(peer);
 343         int fallback_scsv = 0;
 344         int enable_timeouts = 0 ;
 345         long socket_mtu = 0;
 346 #ifndef OPENSSL_NO_JPAKE
 347         char *jpake_secret = NULL;
 348 #endif
 349
 350         meth=SSLv23_client_method();
 351
 352         apps_startup();
 353         c_Pause=0;
 354         c_quiet=0;
 355         c_ign_eof=0;
 356         c_debug=0;
 357         c_msg=0;
 358         c_showcerts=0;
 359
 360         if (bio_err == NULL)
 361                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 362
 363         if (!load_config(bio_err, NULL))
 364                 goto end;
 365
 366         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 367                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 368                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 369                 {
 370                 BIO_printf(bio_err,"out of memory\n");
 371                 goto end;
 372                 }
 373
 374         verify_depth=0;
 375         verify_error=X509_V_OK;
 376 #ifdef FIONBIO
 377         c_nbio=0;
 378 #endif
 379
 380         argc--;
 381         argv++;
 382         while (argc >= 1)
 383                 {
 384                 if      (strcmp(*argv,"-host") == 0)
 385                         {
 386                         if (--argc < 1) goto bad;
 387                         host= *(++argv);
 388                         }
 389                 else if (strcmp(*argv,"-port") == 0)
 390                         {
 391                         if (--argc < 1) goto bad;
 392                         port=atoi(*(++argv));
 393                         if (port == 0) goto bad;
 394                         }
 395                 else if (strcmp(*argv,"-connect") == 0)
 396                         {
 397                         if (--argc < 1) goto bad;
 398                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 399                                 goto bad;
 400                         }
 401                 else if (strcmp(*argv,"-verify") == 0)
 402                         {
 403                         verify=SSL_VERIFY_PEER;
 404                         if (--argc < 1) goto bad;
 405                         verify_depth=atoi(*(++argv));
 406                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 407                         }
 408                 else if (strcmp(*argv,"-cert") == 0)
 409                         {
 410                         if (--argc < 1) goto bad;
 411                         cert_file= *(++argv);
 412                         }
 413                 else if (strcmp(*argv,"-sess_out") == 0)
 414                         {
 415                         if (--argc < 1) goto bad;
 416                         sess_out = *(++argv);
 417                         }
 418                 else if (strcmp(*argv,"-sess_in") == 0)
 419                         {
 420                         if (--argc < 1) goto bad;
 421                         sess_in = *(++argv);
 422                         }
 423                 else if (strcmp(*argv,"-certform") == 0)
 424                         {
 425                         if (--argc < 1) goto bad;
 426                         cert_format = str2fmt(*(++argv));
 427                         }
 428                 else if (strcmp(*argv,"-crl_check") == 0)
 429                         vflags |= X509_V_FLAG_CRL_CHECK;
 430                 else if (strcmp(*argv,"-crl_check_all") == 0)
 431                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 432                 else if (strcmp(*argv,"-prexit") == 0)
 433                         prexit=1;
 434                 else if (strcmp(*argv,"-crlf") == 0)
 435                         crlf=1;
 436                 else if (strcmp(*argv,"-quiet") == 0)
 437                         {
 438                         c_quiet=1;
 439                         c_ign_eof=1;
 440                         }
 441                 else if (strcmp(*argv,"-ign_eof") == 0)
 442                         c_ign_eof=1;
 443                 else if (strcmp(*argv,"-no_ign_eof") == 0)
 444                         c_ign_eof=0;
 445                 else if (strcmp(*argv,"-pause") == 0)
 446                         c_Pause=1;
 447                 else if (strcmp(*argv,"-debug") == 0)
 448                         c_debug=1;
 449 #ifndef OPENSSL_NO_TLSEXT
 450                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 451                         c_tlsextdebug=1;
 452                 else if (strcmp(*argv,"-status") == 0)
 453                         c_status_req=1;
 454 #endif
 455 #ifdef WATT32
 456                 else if (strcmp(*argv,"-wdebug") == 0)
 457                         dbug_init();
 458 #endif
 459                 else if (strcmp(*argv,"-msg") == 0)
 460                         c_msg=1;
 461                 else if (strcmp(*argv,"-showcerts") == 0)
 462                         c_showcerts=1;
 463                 else if (strcmp(*argv,"-nbio_test") == 0)
 464                         nbio_test=1;
 465                 else if (strcmp(*argv,"-state") == 0)
 466                         state=1;
 467 #ifndef OPENSSL_NO_SSL2
 468                 else if (strcmp(*argv,"-ssl2") == 0)
 469                         meth=SSLv2_client_method();
 470 #endif
 471 #ifndef OPENSSL_NO_SSL3
 472                 else if (strcmp(*argv,"-ssl3") == 0)
 473                         meth=SSLv3_client_method();
 474 #endif
 475 #ifndef OPENSSL_NO_TLS1
 476                 else if (strcmp(*argv,"-tls1") == 0)
 477                         meth=TLSv1_client_method();
 478 #endif
 479 #ifndef OPENSSL_NO_DTLS1
 480                 else if (strcmp(*argv,"-dtls1") == 0)
 481                         {
 482                         meth=DTLSv1_client_method();
 483                         sock_type=SOCK_DGRAM;
 484                         }
 485                 else if (strcmp(*argv,"-timeout") == 0)
 486                         enable_timeouts=1;
 487                 else if (strcmp(*argv,"-mtu") == 0)
 488                         {
 489                         if (--argc < 1) goto bad;
 490                         socket_mtu = atol(*(++argv));
 491                         }
 492 #endif
 493                 else if (strcmp(*argv,"-fallback_scsv") == 0)
 494                         {
 495                         fallback_scsv = 1;
 496                         }
 497                 else if (strcmp(*argv,"-bugs") == 0)
 498                         bugs=1;
 499                 else if (strcmp(*argv,"-keyform") == 0)
 500                         {
 501                         if (--argc < 1) goto bad;
 502                         key_format = str2fmt(*(++argv));
 503                         }
 504                 else if (strcmp(*argv,"-pass") == 0)
 505                         {
 506                         if (--argc < 1) goto bad;
 507                         passarg = *(++argv);
 508                         }
 509                 else if (strcmp(*argv,"-key") == 0)
 510                         {
 511                         if (--argc < 1) goto bad;
 512                         key_file= *(++argv);
 513                         }
 514                 else if (strcmp(*argv,"-reconnect") == 0)
 515                         {
 516                         reconnect=5;
 517                         }
 518                 else if (strcmp(*argv,"-CApath") == 0)
 519                         {
 520                         if (--argc < 1) goto bad;
 521                         CApath= *(++argv);
 522                         }
 523                 else if (strcmp(*argv,"-CAfile") == 0)
 524                         {
 525                         if (--argc < 1) goto bad;
 526                         CAfile= *(++argv);
 527                         }
 528                 else if (strcmp(*argv,"-no_tls1") == 0)
 529                         off|=SSL_OP_NO_TLSv1;
 530                 else if (strcmp(*argv,"-no_ssl3") == 0)
 531                         off|=SSL_OP_NO_SSLv3;
 532                 else if (strcmp(*argv,"-no_ssl2") == 0)
 533                         off|=SSL_OP_NO_SSLv2;
 534 #ifndef OPENSSL_NO_TLSEXT
 535                 else if (strcmp(*argv,"-no_ticket") == 0)
 536                         { off|=SSL_OP_NO_TICKET; }
 537 #endif
 538                 else if (strcmp(*argv,"-serverpref") == 0)
 539                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 540                 else if (strcmp(*argv,"-legacy_renegotiation") == 0)
 541                         off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
 542                 else if (strcmp(*argv,"-legacy_server_connect") == 0)
 543                         { off|=SSL_OP_LEGACY_SERVER_CONNECT; }
 544                 else if (strcmp(*argv,"-no_legacy_server_connect") == 0)
 545                         { clr|=SSL_OP_LEGACY_SERVER_CONNECT; }
 546                 else if (strcmp(*argv,"-cipher") == 0)
 547                         {
 548                         if (--argc < 1) goto bad;
 549                         cipher= *(++argv);
 550                         }
 551 #ifdef FIONBIO
 552                 else if (strcmp(*argv,"-nbio") == 0)
 553                         { c_nbio=1; }
 554 #endif
 555                 else if (strcmp(*argv,"-starttls") == 0)
 556                         {
 557                         if (--argc < 1) goto bad;
 558                         ++argv;
 559                         if (strcmp(*argv,"smtp") == 0)
 560                                 starttls_proto = PROTO_SMTP;
 561                         else if (strcmp(*argv,"pop3") == 0)
 562                                 starttls_proto = PROTO_POP3;
 563                         else if (strcmp(*argv,"imap") == 0)
 564                                 starttls_proto = PROTO_IMAP;
 565                         else if (strcmp(*argv,"ftp") == 0)
 566                                 starttls_proto = PROTO_FTP;
 567                         else if (strcmp(*argv, "xmpp") == 0)
 568                                 starttls_proto = PROTO_XMPP;
 569                         else
 570                                 goto bad;
 571                         }
 572 #ifndef OPENSSL_NO_ENGINE
 573                 else if (strcmp(*argv,"-engine") == 0)
 574                         {
 575                         if (--argc < 1) goto bad;
 576                         engine_id = *(++argv);
 577                         }
 578                 else if (strcmp(*argv,"-ssl_client_engine") == 0)
 579                         {
 580                         if (--argc < 1) goto bad;
 581                         ssl_client_engine_id = *(++argv);
 582                         }
 583 #endif
 584                 else if (strcmp(*argv,"-rand") == 0)
 585                         {
 586                         if (--argc < 1) goto bad;
 587                         inrand= *(++argv);
 588                         }
 589 #ifndef OPENSSL_NO_TLSEXT
 590                 else if (strcmp(*argv,"-servername") == 0)
 591                         {
 592                         if (--argc < 1) goto bad;
 593                         servername= *(++argv);
 594                         /* meth=TLSv1_client_method(); */
 595                         }
 596 #endif
 597 #ifndef OPENSSL_NO_JPAKE
 598                 else if (strcmp(*argv,"-jpake") == 0)
 599                         {
 600                         if (--argc < 1) goto bad;
 601                         jpake_secret = *++argv;
 602                         }
 603 #endif
 604                 else
 605                         {
 606                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 607                         badop=1;
 608                         break;
 609                         }
 610                 argc--;
 611                 argv++;
 612                 }
 613         if (badop)
 614                 {
 615 bad:
 616                 sc_usage();
 617                 goto end;
 618                 }
 619
 620         OpenSSL_add_ssl_algorithms();
 621         SSL_load_error_strings();
 622
 623 #ifndef OPENSSL_NO_ENGINE
 624         e = setup_engine(bio_err, engine_id, 1);
 625         if (ssl_client_engine_id)
 626                 {
 627                 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
 628                 if (!ssl_client_engine)
 629                         {
 630                         BIO_printf(bio_err,
 631                                         "Error getting client auth engine\n");
 632                         goto end;
 633                         }
 634                 }
 635 #endif
 636         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
 637                 {
 638                 BIO_printf(bio_err, "Error getting password\n");
 639                 goto end;
 640                 }
 641
 642         if (key_file == NULL)
 643                 key_file = cert_file;
 644
 645
 646         if (key_file)
 647
 648                 {
 649
 650                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
 651                                "client certificate private key file");
 652                 if (!key)
 653                         {
 654                         ERR_print_errors(bio_err);
 655                         goto end;
 656                         }
 657
 658                 }
 659
 660         if (cert_file)
 661
 662                 {
 663                 cert = load_cert(bio_err,cert_file,cert_format,
 664                                 NULL, e, "client certificate file");
 665
 666                 if (!cert)
 667                         {
 668                         ERR_print_errors(bio_err);
 669                         goto end;
 670                         }
 671                 }
 672
 673         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 674                 && !RAND_status())
 675                 {
 676                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 677                 }
 678         if (inrand != NULL)
 679                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 680                         app_RAND_load_files(inrand));
 681
 682         if (bio_c_out == NULL)
 683                 {
 684                 if (c_quiet && !c_debug && !c_msg)
 685                         {
 686                         bio_c_out=BIO_new(BIO_s_null());
 687                         }
 688                 else
 689                         {
 690                         if (bio_c_out == NULL)
 691                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 692                         }
 693                 }
 694
 695         ctx=SSL_CTX_new(meth);
 696         if (ctx == NULL)
 697                 {
 698                 ERR_print_errors(bio_err);
 699                 goto end;
 700                 }
 701
 702 #ifndef OPENSSL_NO_ENGINE
 703         if (ssl_client_engine)
 704                 {
 705                 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine))
 706                         {
 707                         BIO_puts(bio_err, "Error setting client auth engine\n");
 708                         ERR_print_errors(bio_err);
 709                         ENGINE_free(ssl_client_engine);
 710                         goto end;
 711                         }
 712                 ENGINE_free(ssl_client_engine);
 713                 }
 714 #endif
 715
 716         if (bugs)
 717                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 718         else
 719                 SSL_CTX_set_options(ctx,off);
 720
 721         if (clr)
 722                 SSL_CTX_clear_options(ctx, clr);
 723         /* DTLS: partial reads end up discarding unread UDP bytes :-(
 724          * Setting read ahead solves this problem.
 725          */
 726         if (sock_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
 727
 728         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 729         if (cipher != NULL)
 730                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 731                 BIO_printf(bio_err,"error setting cipher list\n");
 732                 ERR_print_errors(bio_err);
 733                 goto end;
 734         }
 735 #if 0
 736         else
 737                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 738 #endif
 739
 740         SSL_CTX_set_verify(ctx,verify,verify_callback);
 741         if (!set_cert_key_stuff(ctx,cert,key))
 742                 goto end;
 743
 744         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 745                 (!SSL_CTX_set_default_verify_paths(ctx)))
 746                 {
 747                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 748                 ERR_print_errors(bio_err);
 749                 /* goto end; */
 750                 }
 751
 752         store = SSL_CTX_get_cert_store(ctx);
 753         X509_STORE_set_flags(store, vflags);
 754 #ifndef OPENSSL_NO_TLSEXT
 755         if (servername != NULL)
 756                 {
 757                 tlsextcbp.biodebug = bio_err;
 758                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
 759                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
 760                 }
 761 #endif
 762
 763         con=SSL_new(ctx);
 764         if (sess_in)
 765                 {
 766                 SSL_SESSION *sess;
 767                 BIO *stmp = BIO_new_file(sess_in, "r");
 768                 if (!stmp)
 769                         {
 770                         BIO_printf(bio_err, "Can't open session file %s\n",
 771                                                 sess_in);
 772                         ERR_print_errors(bio_err);
 773                         goto end;
 774                         }
 775                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
 776                 BIO_free(stmp);
 777                 if (!sess)
 778                         {
 779                         BIO_printf(bio_err, "Can't open session file %s\n",
 780                                                 sess_in);
 781                         ERR_print_errors(bio_err);
 782                         goto end;
 783                         }
 784                 SSL_set_session(con, sess);
 785                 SSL_SESSION_free(sess);
 786                 }
 787
 788         if (fallback_scsv)
 789                 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
 790
 791 #ifndef OPENSSL_NO_TLSEXT
 792         if (servername != NULL)
 793                 {
 794                 if (!SSL_set_tlsext_host_name(con,servername))
 795                         {
 796                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
 797                         ERR_print_errors(bio_err);
 798                         goto end;
 799                         }
 800                 }
 801 #endif
 802
 803 #ifndef OPENSSL_NO_KRB5
 804         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 805                 {
 806                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 807                 }
 808 #endif  /* OPENSSL_NO_KRB5  */
 809 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 810
 811 re_start:
 812
 813         if (init_client(&s,host,port,sock_type) == 0)
 814                 {
 815                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 816                 SHUTDOWN(s);
 817                 goto end;
 818                 }
 819         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 820
 821 #ifdef FIONBIO
 822         if (c_nbio)
 823                 {
 824                 unsigned long l=1;
 825                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 826                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 827                         {
 828                         ERR_print_errors(bio_err);
 829                         goto end;
 830                         }
 831                 }
 832 #endif
 833         if (c_Pause & 0x01) con->debug=1;
 834
 835         if ( SSL_version(con) == DTLS1_VERSION)
 836                 {
 837
 838                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
 839                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
 840                         {
 841                         BIO_printf(bio_err, "getsockname:errno=%d\n",
 842                                 get_last_socket_error());
 843                         SHUTDOWN(s);
 844                         goto end;
 845                         }
 846
 847                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
 848
 849                 if ( enable_timeouts)
 850                         {
 851                         timeout.tv_sec = 0;
 852                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
 853                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
 854
 855                         timeout.tv_sec = 0;
 856                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
 857                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
 858                         }
 859
 860                 if (socket_mtu > 28)
 861                         {
 862                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
 863                         SSL_set_mtu(con, socket_mtu - 28);
 864                         }
 865                 else
 866                         /* want to do MTU discovery */
 867                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
 868                 }
 869         else
 870                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
 871
 872         if (nbio_test)
 873                 {
 874                 BIO *test;
 875
 876                 test=BIO_new(BIO_f_nbio_test());
 877                 sbio=BIO_push(test,sbio);
 878                 }
 879
 880         if (c_debug)
 881                 {
 882                 con->debug=1;
 883                 BIO_set_callback(sbio,bio_dump_callback);
 884                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
 885                 }
 886         if (c_msg)
 887                 {
 888                 SSL_set_msg_callback(con, msg_cb);
 889                 SSL_set_msg_callback_arg(con, bio_c_out);
 890                 }
 891 #ifndef OPENSSL_NO_TLSEXT
 892         if (c_tlsextdebug)
 893                 {
 894                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
 895                 SSL_set_tlsext_debug_arg(con, bio_c_out);
 896                 }
 897         if (c_status_req)
 898                 {
 899                 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
 900                 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
 901                 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
 902 #if 0
 903 {
 904 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
 905 OCSP_RESPID *id = OCSP_RESPID_new();
 906 id->value.byKey = ASN1_OCTET_STRING_new();
 907 id->type = V_OCSP_RESPID_KEY;
 908 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
 909 sk_OCSP_RESPID_push(ids, id);
 910 SSL_set_tlsext_status_ids(con, ids);
 911 }
 912 #endif
 913                 }
 914 #endif
 915 #ifndef OPENSSL_NO_JPAKE
 916         if (jpake_secret)
 917                 jpake_client_auth(bio_c_out, sbio, jpake_secret);
 918 #endif
 919
 920         SSL_set_bio(con,sbio,sbio);
 921         SSL_set_connect_state(con);
 922
 923         /* ok, lets connect */
 924         width=SSL_get_fd(con)+1;
 925
 926         read_tty=1;
 927         write_tty=0;
 928         tty_on=0;
 929         read_ssl=1;
 930         write_ssl=1;
 931
 932         cbuf_len=0;
 933         cbuf_off=0;
 934         sbuf_len=0;
 935         sbuf_off=0;
 936
 937         /* This is an ugly hack that does a lot of assumptions */
 938         /* We do have to handle multi-line responses which may come
 939            in a single packet or not. We therefore have to use
 940            BIO_gets() which does need a buffering BIO. So during
 941            the initial chitchat we do push a buffering BIO into the
 942            chain that is removed again later on to not disturb the
 943            rest of the s_client operation. */
 944         if (starttls_proto == PROTO_SMTP)
 945                 {
 946                 int foundit=0;
 947                 BIO *fbio = BIO_new(BIO_f_buffer());
 948                 BIO_push(fbio, sbio);
 949                 /* wait for multi-line response to end from SMTP */
 950                 do
 951                         {
 952                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 953                         }
 954                 while (mbuf_len>3 && mbuf[3]=='-');
 955                 /* STARTTLS command requires EHLO... */
 956                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
 957                 (void)BIO_flush(fbio);
 958                 /* wait for multi-line response to end EHLO SMTP response */
 959                 do
 960                         {
 961                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 962                         if (strstr(mbuf,"STARTTLS"))
 963                                 foundit=1;
 964                         }
 965                 while (mbuf_len>3 && mbuf[3]=='-');
 966                 (void)BIO_flush(fbio);
 967                 BIO_pop(fbio);
 968                 BIO_free(fbio);
 969                 if (!foundit)
 970                         BIO_printf(bio_err,
 971                                    "didn't found starttls in server response,"
 972                                    " try anyway...\n");
 973                 BIO_printf(sbio,"STARTTLS\r\n");
 974                 BIO_read(sbio,sbuf,BUFSIZZ);
 975                 }
 976         else if (starttls_proto == PROTO_POP3)
 977                 {
 978                 BIO_read(sbio,mbuf,BUFSIZZ);
 979                 BIO_printf(sbio,"STLS\r\n");
 980                 BIO_read(sbio,sbuf,BUFSIZZ);
 981                 }
 982         else if (starttls_proto == PROTO_IMAP)
 983                 {
 984                 int foundit=0;
 985                 BIO *fbio = BIO_new(BIO_f_buffer());
 986                 BIO_push(fbio, sbio);
 987                 BIO_gets(fbio,mbuf,BUFSIZZ);
 988                 /* STARTTLS command requires CAPABILITY... */
 989                 BIO_printf(fbio,". CAPABILITY\r\n");
 990                 (void)BIO_flush(fbio);
 991                 /* wait for multi-line CAPABILITY response */
 992                 do
 993                         {
 994                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 995                         if (strstr(mbuf,"STARTTLS"))
 996                                 foundit=1;
 997                         }
 998                 while (mbuf_len>3 && mbuf[0]!='.');
 999                 (void)BIO_flush(fbio);
1000                 BIO_pop(fbio);
1001                 BIO_free(fbio);
1002                 if (!foundit)
1003                         BIO_printf(bio_err,
1004                                    "didn't found STARTTLS in server response,"
1005                                    " try anyway...\n");
1006                 BIO_printf(sbio,". STARTTLS\r\n");
1007                 BIO_read(sbio,sbuf,BUFSIZZ);
1008                 }
1009         else if (starttls_proto == PROTO_FTP)
1010                 {
1011                 BIO *fbio = BIO_new(BIO_f_buffer());
1012                 BIO_push(fbio, sbio);
1013                 /* wait for multi-line response to end from FTP */
1014                 do
1015                         {
1016                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1017                         }
1018                 while (mbuf_len>3 && mbuf[3]=='-');
1019                 (void)BIO_flush(fbio);
1020                 BIO_pop(fbio);
1021                 BIO_free(fbio);
1022                 BIO_printf(sbio,"AUTH TLS\r\n");
1023                 BIO_read(sbio,sbuf,BUFSIZZ);
1024                 }
1025         if (starttls_proto == PROTO_XMPP)
1026                 {
1027                 int seen = 0;
1028                 BIO_printf(sbio,"<stream:stream "
1029                     "xmlns:stream='http://etherx.jabber.org/streams' "
1030                     "xmlns='jabber:client' to='%s' version='1.0'>", host);
1031                 seen = BIO_read(sbio,mbuf,BUFSIZZ);
1032                 mbuf[seen] = 0;
1033                 while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'"))
1034                         {
1035                         if (strstr(mbuf, "/stream:features>"))
1036                                 goto shut;
1037                         seen = BIO_read(sbio,mbuf,BUFSIZZ);
1038                         mbuf[seen] = 0;
1039                         }
1040                 BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
1041                 seen = BIO_read(sbio,sbuf,BUFSIZZ);
1042                 sbuf[seen] = 0;
1043                 if (!strstr(sbuf, "<proceed"))
1044                         goto shut;
1045                 mbuf[0] = 0;
1046                 }
1047
1048         for (;;)
1049                 {
1050                 FD_ZERO(&readfds);
1051                 FD_ZERO(&writefds);
1052
1053                 if ((SSL_version(con) == DTLS1_VERSION) &&
1054                         DTLSv1_get_timeout(con, &timeout))
1055                         timeoutp = &timeout;
1056                 else
1057                         timeoutp = NULL;
1058
1059                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1060                         {
1061                         in_init=1;
1062                         tty_on=0;
1063                         }
1064                 else
1065                         {
1066                         tty_on=1;
1067                         if (in_init)
1068                                 {
1069                                 in_init=0;
1070                                 if (sess_out)
1071                                         {
1072                                         BIO *stmp = BIO_new_file(sess_out, "w");
1073                                         if (stmp)
1074                                                 {
1075                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1076                                                 BIO_free(stmp);
1077                                                 }
1078                                         else
1079                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1080                                         }
1081                                 print_stuff(bio_c_out,con,full_log);
1082                                 if (full_log > 0) full_log--;
1083
1084                                 if (starttls_proto)
1085                                         {
1086                                         BIO_printf(bio_err,"%s",mbuf);
1087                                         /* We don't need to know any more */
1088                                         starttls_proto = PROTO_OFF;
1089                                         }
1090
1091                                 if (reconnect)
1092                                         {
1093                                         reconnect--;
1094                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1095                                         SSL_shutdown(con);
1096                                         SSL_set_connect_state(con);
1097                                         SHUTDOWN(SSL_get_fd(con));
1098                                         goto re_start;
1099                                         }
1100                                 }
1101                         }
1102
1103                 ssl_pending = read_ssl && SSL_pending(con);
1104
1105                 if (!ssl_pending)
1106                         {
1107 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)
1108                         if (tty_on)
1109                                 {
1110                                 if (read_tty)  FD_SET(fileno(stdin),&readfds);
1111                                 if (write_tty) FD_SET(fileno(stdout),&writefds);
1112                                 }
1113                         if (read_ssl)
1114                                 FD_SET(SSL_get_fd(con),&readfds);
1115                         if (write_ssl)
1116                                 FD_SET(SSL_get_fd(con),&writefds);
1117 #else
1118                         if(!tty_on || !write_tty) {
1119                                 if (read_ssl)
1120                                         FD_SET(SSL_get_fd(con),&readfds);
1121                                 if (write_ssl)
1122                                         FD_SET(SSL_get_fd(con),&writefds);
1123                         }
1124 #endif
1125 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1126                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1127
1128                         /* Note: under VMS with SOCKETSHR the second parameter
1129                          * is currently of type (int *) whereas under other
1130                          * systems it is (void *) if you don't have a cast it
1131                          * will choke the compiler: if you do have a cast then
1132                          * you can either go for (int *) or (void *).
1133                          */
1134 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1135                         /* Under Windows/DOS we make the assumption that we can
1136                          * always write to the tty: therefore if we need to
1137                          * write to the tty we just fall through. Otherwise
1138                          * we timeout the select every second and see if there
1139                          * are any keypresses. Note: this is a hack, in a proper
1140                          * Windows application we wouldn't do this.
1141                          */
1142                         i=0;
1143                         if(!write_tty) {
1144                                 if(read_tty) {
1145                                         tv.tv_sec = 1;
1146                                         tv.tv_usec = 0;
1147                                         i=select(width,(void *)&readfds,(void *)&writefds,
1148                                                  NULL,&tv);
1149 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1150                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1151 #else
1152                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1153 #endif
1154                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1155                                          NULL,timeoutp);
1156                         }
1157 #elif defined(OPENSSL_SYS_NETWARE)
1158                         if(!write_tty) {
1159                                 if(read_tty) {
1160                                         tv.tv_sec = 1;
1161                                         tv.tv_usec = 0;
1162                                         i=select(width,(void *)&readfds,(void *)&writefds,
1163                                                 NULL,&tv);
1164                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1165                                         NULL,timeoutp);
1166                         }
1167 #else
1168                         i=select(width,(void *)&readfds,(void *)&writefds,
1169                                  NULL,timeoutp);
1170 #endif
1171                         if ( i < 0)
1172                                 {
1173                                 BIO_printf(bio_err,"bad select %d\n",
1174                                 get_last_socket_error());
1175                                 goto shut;
1176                                 /* goto end; */
1177                                 }
1178                         }
1179
1180                 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
1181                         {
1182                         BIO_printf(bio_err,"TIMEOUT occured\n");
1183                         }
1184
1185                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1186                         {
1187                         k=SSL_write(con,&(cbuf[cbuf_off]),
1188                                 (unsigned int)cbuf_len);
1189                         switch (SSL_get_error(con,k))
1190                                 {
1191                         case SSL_ERROR_NONE:
1192                                 cbuf_off+=k;
1193                                 cbuf_len-=k;
1194                                 if (k <= 0) goto end;
1195                                 /* we have done a  write(con,NULL,0); */
1196                                 if (cbuf_len <= 0)
1197                                         {
1198                                         read_tty=1;
1199                                         write_ssl=0;
1200                                         }
1201                                 else /* if (cbuf_len > 0) */
1202                                         {
1203                                         read_tty=0;
1204                                         write_ssl=1;
1205                                         }
1206                                 break;
1207                         case SSL_ERROR_WANT_WRITE:
1208                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1209                                 write_ssl=1;
1210                                 read_tty=0;
1211                                 break;
1212                         case SSL_ERROR_WANT_READ:
1213                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1214                                 write_tty=0;
1215                                 read_ssl=1;
1216                                 write_ssl=0;
1217                                 break;
1218                         case SSL_ERROR_WANT_X509_LOOKUP:
1219                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1220                                 break;
1221                         case SSL_ERROR_ZERO_RETURN:
1222                                 if (cbuf_len != 0)
1223                                         {
1224                                         BIO_printf(bio_c_out,"shutdown\n");
1225                                         goto shut;
1226                                         }
1227                                 else
1228                                         {
1229                                         read_tty=1;
1230                                         write_ssl=0;
1231                                         break;
1232                                         }
1233
1234                         case SSL_ERROR_SYSCALL:
1235                                 if ((k != 0) || (cbuf_len != 0))
1236                                         {
1237                                         BIO_printf(bio_err,"write:errno=%d\n",
1238                                                 get_last_socket_error());
1239                                         goto shut;
1240                                         }
1241                                 else
1242                                         {
1243                                         read_tty=1;
1244                                         write_ssl=0;
1245                                         }
1246                                 break;
1247                         case SSL_ERROR_SSL:
1248                                 ERR_print_errors(bio_err);
1249                                 goto shut;
1250                                 }
1251                         }
1252 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
1253                 /* Assume Windows/DOS can always write */
1254                 else if (!ssl_pending && write_tty)
1255 #else
1256                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1257 #endif
1258                         {
1259 #ifdef CHARSET_EBCDIC
1260                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1261 #endif
1262                         i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
1263
1264                         if (i <= 0)
1265                                 {
1266                                 BIO_printf(bio_c_out,"DONE\n");
1267                                 goto shut;
1268                                 /* goto end; */
1269                                 }
1270
1271                         sbuf_len-=i;;
1272                         sbuf_off+=i;
1273                         if (sbuf_len <= 0)
1274                                 {
1275                                 read_ssl=1;
1276                                 write_tty=0;
1277                                 }
1278                         }
1279                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1280                         {
1281 #ifdef RENEG
1282 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1283 #endif
1284 #if 1
1285                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1286 #else
1287 /* Demo for pending and peek :-) */
1288                         k=SSL_read(con,sbuf,16);
1289 { char zbuf[10240];
1290 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1291 }
1292 #endif
1293
1294                         switch (SSL_get_error(con,k))
1295                                 {
1296                         case SSL_ERROR_NONE:
1297                                 if (k <= 0)
1298                                         goto end;
1299                                 sbuf_off=0;
1300                                 sbuf_len=k;
1301
1302                                 read_ssl=0;
1303                                 write_tty=1;
1304                                 break;
1305                         case SSL_ERROR_WANT_WRITE:
1306                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1307                                 write_ssl=1;
1308                                 read_tty=0;
1309                                 break;
1310                         case SSL_ERROR_WANT_READ:
1311                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1312                                 write_tty=0;
1313                                 read_ssl=1;
1314                                 if ((read_tty == 0) && (write_ssl == 0))
1315                                         write_ssl=1;
1316                                 break;
1317                         case SSL_ERROR_WANT_X509_LOOKUP:
1318                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1319                                 break;
1320                         case SSL_ERROR_SYSCALL:
1321                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
1322                                 goto shut;
1323                         case SSL_ERROR_ZERO_RETURN:
1324                                 BIO_printf(bio_c_out,"closed\n");
1325                                 goto shut;
1326                         case SSL_ERROR_SSL:
1327                                 ERR_print_errors(bio_err);
1328                                 goto shut;
1329                                 /* break; */
1330                                 }
1331                         }
1332
1333 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1334 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1335                 else if (_kbhit())
1336 #else
1337                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1338 #endif
1339 #elif defined (OPENSSL_SYS_NETWARE)
1340         else if (_kbhit())
1341 #else
1342                 else if (FD_ISSET(fileno(stdin),&readfds))
1343 #endif
1344                         {
1345                         if (crlf)
1346                                 {
1347                                 int j, lf_num;
1348
1349                                 i=read(fileno(stdin),cbuf,BUFSIZZ/2);
1350                                 lf_num = 0;
1351                                 /* both loops are skipped when i <= 0 */
1352                                 for (j = 0; j < i; j++)
1353                                         if (cbuf[j] == '\n')
1354                                                 lf_num++;
1355                                 for (j = i-1; j >= 0; j--)
1356                                         {
1357                                         cbuf[j+lf_num] = cbuf[j];
1358                                         if (cbuf[j] == '\n')
1359                                                 {
1360                                                 lf_num--;
1361                                                 i++;
1362                                                 cbuf[j+lf_num] = '\r';
1363                                                 }
1364                                         }
1365                                 assert(lf_num == 0);
1366                                 }
1367                         else
1368                                 i=read(fileno(stdin),cbuf,BUFSIZZ);
1369
1370                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1371                                 {
1372                                 BIO_printf(bio_err,"DONE\n");
1373                                 goto shut;
1374                                 }
1375
1376                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1377                                 {
1378                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1379                                 SSL_renegotiate(con);
1380                                 cbuf_len=0;
1381                                 }
1382                         else
1383                                 {
1384                                 cbuf_len=i;
1385                                 cbuf_off=0;
1386 #ifdef CHARSET_EBCDIC
1387                                 ebcdic2ascii(cbuf, cbuf, i);
1388 #endif
1389                                 }
1390
1391                         write_ssl=1;
1392                         read_tty=0;
1393                         }
1394                 }
1395 shut:
1396         SSL_shutdown(con);
1397         SHUTDOWN(SSL_get_fd(con));
1398         ret=0;
1399 end:
1400         if(prexit) print_stuff(bio_c_out,con,1);
1401         if (con != NULL) SSL_free(con);
1402         if (con2 != NULL) SSL_free(con2);
1403         if (ctx != NULL) SSL_CTX_free(ctx);
1404         if (cert)
1405                 X509_free(cert);
1406         if (key)
1407                 EVP_PKEY_free(key);
1408         if (pass)
1409                 OPENSSL_free(pass);
1410         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1411         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1412         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1413         if (bio_c_out != NULL)
1414                 {
1415                 BIO_free(bio_c_out);
1416                 bio_c_out=NULL;
1417                 }
1418         apps_shutdown();
1419         OPENSSL_EXIT(ret);
1420         }
1421
1422
1423 static void print_stuff(BIO *bio, SSL *s, int full)
1424         {
1425         X509 *peer=NULL;
1426         char *p;
1427         static const char *space="                ";
1428         char buf[BUFSIZ];
1429         STACK_OF(X509) *sk;
1430         STACK_OF(X509_NAME) *sk2;
1431         SSL_CIPHER *c;
1432         X509_NAME *xn;
1433         int j,i;
1434 #ifndef OPENSSL_NO_COMP
1435         const COMP_METHOD *comp, *expansion;
1436 #endif
1437
1438         if (full)
1439                 {
1440                 int got_a_chain = 0;
1441
1442                 sk=SSL_get_peer_cert_chain(s);
1443                 if (sk != NULL)
1444                         {
1445                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1446
1447                         BIO_printf(bio,"---\nCertificate chain\n");
1448                         for (i=0; i<sk_X509_num(sk); i++)
1449                                 {
1450                                 X509_NAME_oneline(X509_get_subject_name(
1451                                         sk_X509_value(sk,i)),buf,sizeof buf);
1452                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1453                                 X509_NAME_oneline(X509_get_issuer_name(
1454                                         sk_X509_value(sk,i)),buf,sizeof buf);
1455                                 BIO_printf(bio,"   i:%s\n",buf);
1456                                 if (c_showcerts)
1457                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1458                                 }
1459                         }
1460
1461                 BIO_printf(bio,"---\n");
1462                 peer=SSL_get_peer_certificate(s);
1463                 if (peer != NULL)
1464                         {
1465                         BIO_printf(bio,"Server certificate\n");
1466                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1467                                 PEM_write_bio_X509(bio,peer);
1468                         X509_NAME_oneline(X509_get_subject_name(peer),
1469                                 buf,sizeof buf);
1470                         BIO_printf(bio,"subject=%s\n",buf);
1471                         X509_NAME_oneline(X509_get_issuer_name(peer),
1472                                 buf,sizeof buf);
1473                         BIO_printf(bio,"issuer=%s\n",buf);
1474                         }
1475                 else
1476                         BIO_printf(bio,"no peer certificate available\n");
1477
1478                 sk2=SSL_get_client_CA_list(s);
1479                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1480                         {
1481                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1482                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1483                                 {
1484                                 xn=sk_X509_NAME_value(sk2,i);
1485                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1486                                 BIO_write(bio,buf,strlen(buf));
1487                                 BIO_write(bio,"\n",1);
1488                                 }
1489                         }
1490                 else
1491                         {
1492                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1493                         }
1494                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1495                 if (p != NULL)
1496                         {
1497                         /* This works only for SSL 2.  In later protocol
1498                          * versions, the client does not know what other
1499                          * ciphers (in addition to the one to be used
1500                          * in the current connection) the server supports. */
1501
1502                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1503                         j=i=0;
1504                         while (*p)
1505                                 {
1506                                 if (*p == ':')
1507                                         {
1508                                         BIO_write(bio,space,15-j%25);
1509                                         i++;
1510                                         j=0;
1511                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1512                                         }
1513                                 else
1514                                         {
1515                                         BIO_write(bio,p,1);
1516                                         j++;
1517                                         }
1518                                 p++;
1519                                 }
1520                         BIO_write(bio,"\n",1);
1521                         }
1522
1523                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1524                         BIO_number_read(SSL_get_rbio(s)),
1525                         BIO_number_written(SSL_get_wbio(s)));
1526                 }
1527         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1528         c=SSL_get_current_cipher(s);
1529         BIO_printf(bio,"%s, Cipher is %s\n",
1530                 SSL_CIPHER_get_version(c),
1531                 SSL_CIPHER_get_name(c));
1532         if (peer != NULL) {
1533                 EVP_PKEY *pktmp;
1534                 pktmp = X509_get_pubkey(peer);
1535                 BIO_printf(bio,"Server public key is %d bit\n",
1536                                                          EVP_PKEY_bits(pktmp));
1537                 EVP_PKEY_free(pktmp);
1538         }
1539         BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
1540                         SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
1541 #ifndef OPENSSL_NO_COMP
1542         comp=SSL_get_current_compression(s);
1543         expansion=SSL_get_current_expansion(s);
1544         BIO_printf(bio,"Compression: %s\n",
1545                 comp ? SSL_COMP_get_name(comp) : "NONE");
1546         BIO_printf(bio,"Expansion: %s\n",
1547                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1548 #endif
1549         SSL_SESSION_print(bio,SSL_get_session(s));
1550         BIO_printf(bio,"---\n");
1551         if (peer != NULL)
1552                 X509_free(peer);
1553         /* flush, or debugging output gets mixed with http response */
1554         (void)BIO_flush(bio);
1555         }
1556
1557 #ifndef OPENSSL_NO_TLSEXT
1558
1559 static int ocsp_resp_cb(SSL *s, void *arg)
1560         {
1561         const unsigned char *p;
1562         int len;
1563         OCSP_RESPONSE *rsp;
1564         len = SSL_get_tlsext_status_ocsp_resp(s, &p);
1565         BIO_puts(arg, "OCSP response: ");
1566         if (!p)
1567                 {
1568                 BIO_puts(arg, "no response sent\n");
1569                 return 1;
1570                 }
1571         rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
1572         if (!rsp)
1573                 {
1574                 BIO_puts(arg, "response parse error\n");
1575                 BIO_dump_indent(arg, (char *)p, len, 4);
1576                 return 0;
1577                 }
1578         BIO_puts(arg, "\n======================================\n");
1579         OCSP_RESPONSE_print(arg, rsp, 0);
1580         BIO_puts(arg, "======================================\n");
1581         OCSP_RESPONSE_free(rsp);
1582         return 1;
1583         }
1584 #endif  /* ndef OPENSSL_NO_TLSEXT */