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