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 "s_apps.h"
 138 #include "timeouts.h"
 139
 140 #ifdef OPENSSL_SYS_WINCE
 141 /* Windows CE incorrectly defines fileno as returning void*, so to avoid problems below... */
 142 #ifdef fileno
 143 #undef fileno
 144 #endif
 145 #define fileno(a) (int)_fileno(a)
 146 #endif
 147
 148
 149 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 150 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 151 #undef FIONBIO
 152 #endif
 153
 154 #undef PROG
 155 #define PROG    s_client_main
 156
 157 /*#define SSL_HOST_NAME "www.netscape.com" */
 158 /*#define SSL_HOST_NAME "193.118.187.102" */
 159 #define SSL_HOST_NAME   "localhost"
 160
 161 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 162
 163 #undef BUFSIZZ
 164 #define BUFSIZZ 1024*8
 165
 166 extern int verify_depth;
 167 extern int verify_error;
 168
 169 #ifdef FIONBIO
 170 static int c_nbio=0;
 171 #endif
 172 static int c_Pause=0;
 173 static int c_debug=0;
 174 #ifndef OPENSSL_NO_TLSEXT
 175 static int c_tlsextdebug=0;
 176 #endif
 177 static int c_msg=0;
 178 static int c_showcerts=0;
 179
 180 static void sc_usage(void);
 181 static void print_stuff(BIO *berr,SSL *con,int full);
 182 static BIO *bio_c_out=NULL;
 183 static int c_quiet=0;
 184 static int c_ign_eof=0;
 185
 186 static void sc_usage(void)
 187         {
 188         BIO_printf(bio_err,"usage: s_client args\n");
 189         BIO_printf(bio_err,"\n");
 190         BIO_printf(bio_err," -host host     - use -connect instead\n");
 191         BIO_printf(bio_err," -port port     - use -connect instead\n");
 192         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 193
 194         BIO_printf(bio_err," -verify depth - turn on peer certificate verification\n");
 195         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 196         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 197         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 198         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 199         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 200         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 201         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 202         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 203         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 204         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 205         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 206         BIO_printf(bio_err," -debug        - extra output\n");
 207 #ifdef WATT32
 208         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 209 #endif
 210         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 211         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 212         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 213 #ifdef FIONBIO
 214         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 215 #endif
 216         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 217         BIO_printf(bio_err," -quiet        - no s_client output\n");
 218         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 219         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 220         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 221         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 222         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 223         BIO_printf(bio_err," -mtu          - set the MTU\n");
 224         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 225         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 226         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 227         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 228         BIO_printf(bio_err,"                 command to see what is available\n");
 229         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 230         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 231         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 232         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", and \"ftp\" are supported.\n");
 233 #ifndef OPENSSL_NO_ENGINE
 234         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 235 #endif
 236         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 237 #ifndef OPENSSL_NO_TLSEXT
 238         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 239 #endif
 240         }
 241
 242 #ifndef OPENSSL_NO_TLSEXT
 243
 244 /* This is a context that we pass to callbacks */
 245 typedef struct tlsextctx_st {
 246    BIO * biodebug;
 247    int ack;
 248 } tlsextctx;
 249
 250
 251 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 252         {
 253         tlsextctx * p = (tlsextctx *) arg;
 254         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 255         if (SSL_get_servername_type(s) != -1)
 256                 p->ack = !SSL_session_reused(s) && hn != NULL;
 257         else
 258                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 259
 260         return SSL_TLSEXT_ERR_OK;
 261         }
 262 #endif
 263 enum
 264 {
 265         PROTO_OFF       = 0,
 266         PROTO_SMTP,
 267         PROTO_POP3,
 268         PROTO_IMAP,
 269         PROTO_FTP
 270 };
 271
 272 int MAIN(int, char **);
 273
 274 int MAIN(int argc, char **argv)
 275         {
 276         int off=0;
 277         SSL *con=NULL,*con2=NULL;
 278         X509_STORE *store = NULL;
 279         int s,k,width,state=0;
 280         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 281         int cbuf_len,cbuf_off;
 282         int sbuf_len,sbuf_off;
 283         fd_set readfds,writefds;
 284         short port=PORT;
 285         int full_log=1;
 286         char *host=SSL_HOST_NAME;
 287         char *cert_file=NULL,*key_file=NULL;
 288         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 289         char *passarg = NULL, *pass = NULL;
 290         X509 *cert = NULL;
 291         EVP_PKEY *key = NULL;
 292         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 293         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 294         int crlf=0;
 295         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 296         SSL_CTX *ctx=NULL;
 297         int ret=1,in_init=1,i,nbio_test=0;
 298         int starttls_proto = PROTO_OFF;
 299         int prexit = 0, vflags = 0;
 300         SSL_METHOD *meth=NULL;
 301 #ifdef sock_type
 302 #undef sock_type
 303 #endif
 304         int sock_type=SOCK_STREAM;
 305         BIO *sbio;
 306         char *inrand=NULL;
 307         int mbuf_len=0;
 308 #ifndef OPENSSL_NO_ENGINE
 309         char *engine_id=NULL;
 310         ENGINE *e=NULL;
 311 #endif
 312 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
 313         struct timeval tv;
 314 #endif
 315
 316 #ifndef OPENSSL_NO_TLSEXT
 317         char *servername = NULL;
 318         tlsextctx tlsextcbp =
 319         {NULL,0};
 320 #endif
 321         char *sess_in = NULL;
 322         char *sess_out = NULL;
 323         struct sockaddr peer;
 324         int peerlen = sizeof(peer);
 325         int enable_timeouts = 0 ;
 326         long mtu = 0;
 327
 328 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 329         meth=SSLv23_client_method();
 330 #elif !defined(OPENSSL_NO_SSL3)
 331         meth=SSLv3_client_method();
 332 #elif !defined(OPENSSL_NO_SSL2)
 333         meth=SSLv2_client_method();
 334 #endif
 335
 336         apps_startup();
 337         c_Pause=0;
 338         c_quiet=0;
 339         c_ign_eof=0;
 340         c_debug=0;
 341         c_msg=0;
 342         c_showcerts=0;
 343
 344         if (bio_err == NULL)
 345                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 346
 347         if (!load_config(bio_err, NULL))
 348                 goto end;
 349
 350         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 351                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 352                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 353                 {
 354                 BIO_printf(bio_err,"out of memory\n");
 355                 goto end;
 356                 }
 357
 358         verify_depth=0;
 359         verify_error=X509_V_OK;
 360 #ifdef FIONBIO
 361         c_nbio=0;
 362 #endif
 363
 364         argc--;
 365         argv++;
 366         while (argc >= 1)
 367                 {
 368                 if      (strcmp(*argv,"-host") == 0)
 369                         {
 370                         if (--argc < 1) goto bad;
 371                         host= *(++argv);
 372                         }
 373                 else if (strcmp(*argv,"-port") == 0)
 374                         {
 375                         if (--argc < 1) goto bad;
 376                         port=atoi(*(++argv));
 377                         if (port == 0) goto bad;
 378                         }
 379                 else if (strcmp(*argv,"-connect") == 0)
 380                         {
 381                         if (--argc < 1) goto bad;
 382                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 383                                 goto bad;
 384                         }
 385                 else if (strcmp(*argv,"-verify") == 0)
 386                         {
 387                         verify=SSL_VERIFY_PEER;
 388                         if (--argc < 1) goto bad;
 389                         verify_depth=atoi(*(++argv));
 390                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 391                         }
 392                 else if (strcmp(*argv,"-cert") == 0)
 393                         {
 394                         if (--argc < 1) goto bad;
 395                         cert_file= *(++argv);
 396                         }
 397                 else if (strcmp(*argv,"-sess_out") == 0)
 398                         {
 399                         if (--argc < 1) goto bad;
 400                         sess_out = *(++argv);
 401                         }
 402                 else if (strcmp(*argv,"-sess_in") == 0)
 403                         {
 404                         if (--argc < 1) goto bad;
 405                         sess_in = *(++argv);
 406                         }
 407                 else if (strcmp(*argv,"-certform") == 0)
 408                         {
 409                         if (--argc < 1) goto bad;
 410                         cert_format = str2fmt(*(++argv));
 411                         }
 412                 else if (strcmp(*argv,"-crl_check") == 0)
 413                         vflags |= X509_V_FLAG_CRL_CHECK;
 414                 else if (strcmp(*argv,"-crl_check_all") == 0)
 415                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 416                 else if (strcmp(*argv,"-prexit") == 0)
 417                         prexit=1;
 418                 else if (strcmp(*argv,"-crlf") == 0)
 419                         crlf=1;
 420                 else if (strcmp(*argv,"-quiet") == 0)
 421                         {
 422                         c_quiet=1;
 423                         c_ign_eof=1;
 424                         }
 425                 else if (strcmp(*argv,"-ign_eof") == 0)
 426                         c_ign_eof=1;
 427                 else if (strcmp(*argv,"-pause") == 0)
 428                         c_Pause=1;
 429                 else if (strcmp(*argv,"-debug") == 0)
 430                         c_debug=1;
 431 #ifndef OPENSSL_NO_TLSEXT
 432                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 433                         c_tlsextdebug=1;
 434 #endif
 435 #ifdef WATT32
 436                 else if (strcmp(*argv,"-wdebug") == 0)
 437                         dbug_init();
 438 #endif
 439                 else if (strcmp(*argv,"-msg") == 0)
 440                         c_msg=1;
 441                 else if (strcmp(*argv,"-showcerts") == 0)
 442                         c_showcerts=1;
 443                 else if (strcmp(*argv,"-nbio_test") == 0)
 444                         nbio_test=1;
 445                 else if (strcmp(*argv,"-state") == 0)
 446                         state=1;
 447 #ifndef OPENSSL_NO_SSL2
 448                 else if (strcmp(*argv,"-ssl2") == 0)
 449                         meth=SSLv2_client_method();
 450 #endif
 451 #ifndef OPENSSL_NO_SSL3
 452                 else if (strcmp(*argv,"-ssl3") == 0)
 453                         meth=SSLv3_client_method();
 454 #endif
 455 #ifndef OPENSSL_NO_TLS1
 456                 else if (strcmp(*argv,"-tls1") == 0)
 457                         meth=TLSv1_client_method();
 458 #endif
 459 #ifndef OPENSSL_NO_DTLS1
 460                 else if (strcmp(*argv,"-dtls1") == 0)
 461                         {
 462                         meth=DTLSv1_client_method();
 463                         sock_type=SOCK_DGRAM;
 464                         }
 465                 else if (strcmp(*argv,"-timeout") == 0)
 466                         enable_timeouts=1;
 467                 else if (strcmp(*argv,"-mtu") == 0)
 468                         {
 469                         if (--argc < 1) goto bad;
 470                         mtu = atol(*(++argv));
 471                         }
 472 #endif
 473                 else if (strcmp(*argv,"-bugs") == 0)
 474                         bugs=1;
 475                 else if (strcmp(*argv,"-keyform") == 0)
 476                         {
 477                         if (--argc < 1) goto bad;
 478                         key_format = str2fmt(*(++argv));
 479                         }
 480                 else if (strcmp(*argv,"-pass") == 0)
 481                         {
 482                         if (--argc < 1) goto bad;
 483                         passarg = *(++argv);
 484                         }
 485                 else if (strcmp(*argv,"-key") == 0)
 486                         {
 487                         if (--argc < 1) goto bad;
 488                         key_file= *(++argv);
 489                         }
 490                 else if (strcmp(*argv,"-reconnect") == 0)
 491                         {
 492                         reconnect=5;
 493                         }
 494                 else if (strcmp(*argv,"-CApath") == 0)
 495                         {
 496                         if (--argc < 1) goto bad;
 497                         CApath= *(++argv);
 498                         }
 499                 else if (strcmp(*argv,"-CAfile") == 0)
 500                         {
 501                         if (--argc < 1) goto bad;
 502                         CAfile= *(++argv);
 503                         }
 504                 else if (strcmp(*argv,"-no_tls1") == 0)
 505                         off|=SSL_OP_NO_TLSv1;
 506                 else if (strcmp(*argv,"-no_ssl3") == 0)
 507                         off|=SSL_OP_NO_SSLv3;
 508                 else if (strcmp(*argv,"-no_ssl2") == 0)
 509                         off|=SSL_OP_NO_SSLv2;
 510 #ifndef OPENSSL_NO_TLSEXT
 511                 else if (strcmp(*argv,"-no_ticket") == 0)
 512                         { off|=SSL_OP_NO_TICKET; }
 513 #endif
 514                 else if (strcmp(*argv,"-serverpref") == 0)
 515                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 516                 else if (strcmp(*argv,"-cipher") == 0)
 517                         {
 518                         if (--argc < 1) goto bad;
 519                         cipher= *(++argv);
 520                         }
 521 #ifdef FIONBIO
 522                 else if (strcmp(*argv,"-nbio") == 0)
 523                         { c_nbio=1; }
 524 #endif
 525                 else if (strcmp(*argv,"-starttls") == 0)
 526                         {
 527                         if (--argc < 1) goto bad;
 528                         ++argv;
 529                         if (strcmp(*argv,"smtp") == 0)
 530                                 starttls_proto = PROTO_SMTP;
 531                         else if (strcmp(*argv,"pop3") == 0)
 532                                 starttls_proto = PROTO_POP3;
 533                         else if (strcmp(*argv,"imap") == 0)
 534                                 starttls_proto = PROTO_IMAP;
 535                         else if (strcmp(*argv,"ftp") == 0)
 536                                 starttls_proto = PROTO_FTP;
 537                         else
 538                                 goto bad;
 539                         }
 540 #ifndef OPENSSL_NO_ENGINE
 541                 else if (strcmp(*argv,"-engine") == 0)
 542                         {
 543                         if (--argc < 1) goto bad;
 544                         engine_id = *(++argv);
 545                         }
 546 #endif
 547                 else if (strcmp(*argv,"-rand") == 0)
 548                         {
 549                         if (--argc < 1) goto bad;
 550                         inrand= *(++argv);
 551                         }
 552 #ifndef OPENSSL_NO_TLSEXT
 553                 else if (strcmp(*argv,"-servername") == 0)
 554                         {
 555                         if (--argc < 1) goto bad;
 556                         servername= *(++argv);
 557                         /* meth=TLSv1_client_method(); */
 558                         }
 559 #endif
 560                 else
 561                         {
 562                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 563                         badop=1;
 564                         break;
 565                         }
 566                 argc--;
 567                 argv++;
 568                 }
 569         if (badop)
 570                 {
 571 bad:
 572                 sc_usage();
 573                 goto end;
 574                 }
 575
 576         OpenSSL_add_ssl_algorithms();
 577         SSL_load_error_strings();
 578
 579 #ifndef OPENSSL_NO_ENGINE
 580         e = setup_engine(bio_err, engine_id, 1);
 581 #endif
 582         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
 583                 {
 584                 BIO_printf(bio_err, "Error getting password\n");
 585                 goto end;
 586                 }
 587
 588         if (key_file == NULL)
 589                 key_file = cert_file;
 590
 591
 592         if (key_file)
 593
 594                 {
 595
 596                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
 597                                "client certificate private key file");
 598                 if (!key)
 599                         {
 600                         ERR_print_errors(bio_err);
 601                         goto end;
 602                         }
 603
 604                 }
 605
 606         if (cert_file)
 607
 608                 {
 609                 cert = load_cert(bio_err,cert_file,cert_format,
 610                                 NULL, e, "client certificate file");
 611
 612                 if (!cert)
 613                         {
 614                         ERR_print_errors(bio_err);
 615                         goto end;
 616                         }
 617                 }
 618
 619         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 620                 && !RAND_status())
 621                 {
 622                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 623                 }
 624         if (inrand != NULL)
 625                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 626                         app_RAND_load_files(inrand));
 627
 628         if (bio_c_out == NULL)
 629                 {
 630                 if (c_quiet && !c_debug && !c_msg)
 631                         {
 632                         bio_c_out=BIO_new(BIO_s_null());
 633                         }
 634                 else
 635                         {
 636                         if (bio_c_out == NULL)
 637                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 638                         }
 639                 }
 640
 641         ctx=SSL_CTX_new(meth);
 642         if (ctx == NULL)
 643                 {
 644                 ERR_print_errors(bio_err);
 645                 goto end;
 646                 }
 647
 648         if (bugs)
 649                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 650         else
 651                 SSL_CTX_set_options(ctx,off);
 652         /* DTLS: partial reads end up discarding unread UDP bytes :-(
 653          * Setting read ahead solves this problem.
 654          */
 655         if (sock_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
 656
 657         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 658         if (cipher != NULL)
 659                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 660                 BIO_printf(bio_err,"error setting cipher list\n");
 661                 ERR_print_errors(bio_err);
 662                 goto end;
 663         }
 664 #if 0
 665         else
 666                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 667 #endif
 668
 669         SSL_CTX_set_verify(ctx,verify,verify_callback);
 670         if (!set_cert_key_stuff(ctx,cert,key))
 671                 goto end;
 672
 673         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 674                 (!SSL_CTX_set_default_verify_paths(ctx)))
 675                 {
 676                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 677                 ERR_print_errors(bio_err);
 678                 /* goto end; */
 679                 }
 680
 681         store = SSL_CTX_get_cert_store(ctx);
 682         X509_STORE_set_flags(store, vflags);
 683 #ifndef OPENSSL_NO_TLSEXT
 684         if (servername != NULL)
 685                 {
 686                 tlsextcbp.biodebug = bio_err;
 687                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
 688                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
 689                 }
 690 #endif
 691
 692         con=SSL_new(ctx);
 693         if (sess_in)
 694                 {
 695                 SSL_SESSION *sess;
 696                 BIO *stmp = BIO_new_file(sess_in, "r");
 697                 if (!stmp)
 698                         {
 699                         BIO_printf(bio_err, "Can't open session file %s\n",
 700                                                 sess_in);
 701                         ERR_print_errors(bio_err);
 702                         goto end;
 703                         }
 704                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
 705                 BIO_free(stmp);
 706                 if (!sess)
 707                         {
 708                         BIO_printf(bio_err, "Can't open session file %s\n",
 709                                                 sess_in);
 710                         ERR_print_errors(bio_err);
 711                         goto end;
 712                         }
 713                 SSL_set_session(con, sess);
 714                 SSL_SESSION_free(sess);
 715                 }
 716 #ifndef OPENSSL_NO_TLSEXT
 717         if (servername != NULL)
 718                 {
 719                 if (!SSL_set_tlsext_host_name(con,servername))
 720                         {
 721                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
 722                         ERR_print_errors(bio_err);
 723                         goto end;
 724                         }
 725                 }
 726 #endif
 727
 728 #ifndef OPENSSL_NO_KRB5
 729         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 730                 {
 731                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 732                 }
 733 #endif  /* OPENSSL_NO_KRB5  */
 734 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 735
 736 re_start:
 737
 738         if (init_client(&s,host,port,sock_type) == 0)
 739                 {
 740                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 741                 SHUTDOWN(s);
 742                 goto end;
 743                 }
 744         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 745
 746 #ifdef FIONBIO
 747         if (c_nbio)
 748                 {
 749                 unsigned long l=1;
 750                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 751                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 752                         {
 753                         ERR_print_errors(bio_err);
 754                         goto end;
 755                         }
 756                 }
 757 #endif
 758         if (c_Pause & 0x01) con->debug=1;
 759
 760         if ( SSL_version(con) == DTLS1_VERSION)
 761                 {
 762                 struct timeval timeout;
 763
 764                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
 765                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
 766                         {
 767                         BIO_printf(bio_err, "getsockname:errno=%d\n",
 768                                 get_last_socket_error());
 769                         SHUTDOWN(s);
 770                         goto end;
 771                         }
 772
 773                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
 774
 775                 if ( enable_timeouts)
 776                         {
 777                         timeout.tv_sec = 0;
 778                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
 779                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
 780
 781                         timeout.tv_sec = 0;
 782                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
 783                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
 784                         }
 785
 786                 if ( mtu > 0)
 787                         {
 788                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
 789                         SSL_set_mtu(con, mtu);
 790                         }
 791                 else
 792                         /* want to do MTU discovery */
 793                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
 794                 }
 795         else
 796                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
 797
 798
 799
 800         if (nbio_test)
 801                 {
 802                 BIO *test;
 803
 804                 test=BIO_new(BIO_f_nbio_test());
 805                 sbio=BIO_push(test,sbio);
 806                 }
 807
 808         if (c_debug)
 809                 {
 810                 con->debug=1;
 811                 BIO_set_callback(sbio,bio_dump_callback);
 812                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
 813                 }
 814         if (c_msg)
 815                 {
 816                 SSL_set_msg_callback(con, msg_cb);
 817                 SSL_set_msg_callback_arg(con, bio_c_out);
 818                 }
 819 #ifndef OPENSSL_NO_TLSEXT
 820         if (c_tlsextdebug)
 821                 {
 822                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
 823                 SSL_set_tlsext_debug_arg(con, bio_c_out);
 824                 }
 825 #endif
 826
 827         SSL_set_bio(con,sbio,sbio);
 828         SSL_set_connect_state(con);
 829
 830         /* ok, lets connect */
 831         width=SSL_get_fd(con)+1;
 832
 833         read_tty=1;
 834         write_tty=0;
 835         tty_on=0;
 836         read_ssl=1;
 837         write_ssl=1;
 838
 839         cbuf_len=0;
 840         cbuf_off=0;
 841         sbuf_len=0;
 842         sbuf_off=0;
 843
 844         /* This is an ugly hack that does a lot of assumptions */
 845         /* We do have to handle multi-line responses which may come
 846            in a single packet or not. We therefore have to use
 847            BIO_gets() which does need a buffering BIO. So during
 848            the initial chitchat we do push a buffering BIO into the
 849            chain that is removed again later on to not disturb the
 850            rest of the s_client operation. */
 851         if (starttls_proto == PROTO_SMTP)
 852                 {
 853                 int foundit=0;
 854                 BIO *fbio = BIO_new(BIO_f_buffer());
 855                 BIO_push(fbio, sbio);
 856                 /* wait for multi-line response to end from SMTP */
 857                 do
 858                         {
 859                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 860                         }
 861                 while (mbuf_len>3 && mbuf[3]=='-');
 862                 /* STARTTLS command requires EHLO... */
 863                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
 864                 (void)BIO_flush(fbio);
 865                 /* wait for multi-line response to end EHLO SMTP response */
 866                 do
 867                         {
 868                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 869                         if (strstr(mbuf,"STARTTLS"))
 870                                 foundit=1;
 871                         }
 872                 while (mbuf_len>3 && mbuf[3]=='-');
 873                 (void)BIO_flush(fbio);
 874                 BIO_pop(fbio);
 875                 BIO_free(fbio);
 876                 if (!foundit)
 877                         BIO_printf(bio_err,
 878                                    "didn't found starttls in server response,"
 879                                    " try anyway...\n");
 880                 BIO_printf(sbio,"STARTTLS\r\n");
 881                 BIO_read(sbio,sbuf,BUFSIZZ);
 882                 }
 883         else if (starttls_proto == PROTO_POP3)
 884                 {
 885                 BIO_read(sbio,mbuf,BUFSIZZ);
 886                 BIO_printf(sbio,"STLS\r\n");
 887                 BIO_read(sbio,sbuf,BUFSIZZ);
 888                 }
 889         else if (starttls_proto == PROTO_IMAP)
 890                 {
 891                 int foundit=0;
 892                 BIO *fbio = BIO_new(BIO_f_buffer());
 893                 BIO_push(fbio, sbio);
 894                 BIO_gets(fbio,mbuf,BUFSIZZ);
 895                 /* STARTTLS command requires CAPABILITY... */
 896                 BIO_printf(fbio,". CAPABILITY\r\n");
 897                 (void)BIO_flush(fbio);
 898                 /* wait for multi-line CAPABILITY response */
 899                 do
 900                         {
 901                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 902                         if (strstr(mbuf,"STARTTLS"))
 903                                 foundit=1;
 904                         }
 905                 while (mbuf_len>3 && mbuf[0]!='.');
 906                 (void)BIO_flush(fbio);
 907                 BIO_pop(fbio);
 908                 BIO_free(fbio);
 909                 if (!foundit)
 910                         BIO_printf(bio_err,
 911                                    "didn't found STARTTLS in server response,"
 912                                    " try anyway...\n");
 913                 BIO_printf(sbio,". STARTTLS\r\n");
 914                 BIO_read(sbio,sbuf,BUFSIZZ);
 915                 }
 916         else if (starttls_proto == PROTO_FTP)
 917                 {
 918                 BIO *fbio = BIO_new(BIO_f_buffer());
 919                 BIO_push(fbio, sbio);
 920                 /* wait for multi-line response to end from FTP */
 921                 do
 922                         {
 923                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 924                         }
 925                 while (mbuf_len>3 && mbuf[3]=='-');
 926                 (void)BIO_flush(fbio);
 927                 BIO_pop(fbio);
 928                 BIO_free(fbio);
 929                 BIO_printf(sbio,"AUTH TLS\r\n");
 930                 BIO_read(sbio,sbuf,BUFSIZZ);
 931                 }
 932
 933         for (;;)
 934                 {
 935                 FD_ZERO(&readfds);
 936                 FD_ZERO(&writefds);
 937
 938                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
 939                         {
 940                         in_init=1;
 941                         tty_on=0;
 942                         }
 943                 else
 944                         {
 945                         tty_on=1;
 946                         if (in_init)
 947                                 {
 948                                 in_init=0;
 949                                 if (sess_out)
 950                                         {
 951                                         BIO *stmp = BIO_new_file(sess_out, "w");
 952                                         if (stmp)
 953                                                 {
 954                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
 955                                                 BIO_free(stmp);
 956                                                 }
 957                                         else
 958                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
 959                                         }
 960                                 print_stuff(bio_c_out,con,full_log);
 961                                 if (full_log > 0) full_log--;
 962
 963                                 if (starttls_proto)
 964                                         {
 965                                         BIO_printf(bio_err,"%s",mbuf);
 966                                         /* We don't need to know any more */
 967                                         starttls_proto = PROTO_OFF;
 968                                         }
 969
 970                                 if (reconnect)
 971                                         {
 972                                         reconnect--;
 973                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
 974                                         SSL_shutdown(con);
 975                                         SSL_set_connect_state(con);
 976                                         SHUTDOWN(SSL_get_fd(con));
 977                                         goto re_start;
 978                                         }
 979                                 }
 980                         }
 981
 982                 ssl_pending = read_ssl && SSL_pending(con);
 983
 984                 if (!ssl_pending)
 985                         {
 986 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)
 987                         if (tty_on)
 988                                 {
 989                                 if (read_tty)  FD_SET(fileno(stdin),&readfds);
 990                                 if (write_tty) FD_SET(fileno(stdout),&writefds);
 991                                 }
 992                         if (read_ssl)
 993                                 FD_SET(SSL_get_fd(con),&readfds);
 994                         if (write_ssl)
 995                                 FD_SET(SSL_get_fd(con),&writefds);
 996 #else
 997                         if(!tty_on || !write_tty) {
 998                                 if (read_ssl)
 999                                         FD_SET(SSL_get_fd(con),&readfds);
1000                                 if (write_ssl)
1001                                         FD_SET(SSL_get_fd(con),&writefds);
1002                         }
1003 #endif
1004 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1005                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1006
1007                         /* Note: under VMS with SOCKETSHR the second parameter
1008                          * is currently of type (int *) whereas under other
1009                          * systems it is (void *) if you don't have a cast it
1010                          * will choke the compiler: if you do have a cast then
1011                          * you can either go for (int *) or (void *).
1012                          */
1013 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1014                         /* Under Windows/DOS we make the assumption that we can
1015                          * always write to the tty: therefore if we need to
1016                          * write to the tty we just fall through. Otherwise
1017                          * we timeout the select every second and see if there
1018                          * are any keypresses. Note: this is a hack, in a proper
1019                          * Windows application we wouldn't do this.
1020                          */
1021                         i=0;
1022                         if(!write_tty) {
1023                                 if(read_tty) {
1024                                         tv.tv_sec = 1;
1025                                         tv.tv_usec = 0;
1026                                         i=select(width,(void *)&readfds,(void *)&writefds,
1027                                                  NULL,&tv);
1028 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1029                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1030 #else
1031                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1032 #endif
1033                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1034                                          NULL,NULL);
1035                         }
1036 #elif defined(OPENSSL_SYS_NETWARE)
1037                         if(!write_tty) {
1038                                 if(read_tty) {
1039                                         tv.tv_sec = 1;
1040                                         tv.tv_usec = 0;
1041                                         i=select(width,(void *)&readfds,(void *)&writefds,
1042                                                 NULL,&tv);
1043                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1044                                         NULL,NULL);
1045                         }
1046 #else
1047                         i=select(width,(void *)&readfds,(void *)&writefds,
1048                                  NULL,NULL);
1049 #endif
1050                         if ( i < 0)
1051                                 {
1052                                 BIO_printf(bio_err,"bad select %d\n",
1053                                 get_last_socket_error());
1054                                 goto shut;
1055                                 /* goto end; */
1056                                 }
1057                         }
1058
1059                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1060                         {
1061                         k=SSL_write(con,&(cbuf[cbuf_off]),
1062                                 (unsigned int)cbuf_len);
1063                         switch (SSL_get_error(con,k))
1064                                 {
1065                         case SSL_ERROR_NONE:
1066                                 cbuf_off+=k;
1067                                 cbuf_len-=k;
1068                                 if (k <= 0) goto end;
1069                                 /* we have done a  write(con,NULL,0); */
1070                                 if (cbuf_len <= 0)
1071                                         {
1072                                         read_tty=1;
1073                                         write_ssl=0;
1074                                         }
1075                                 else /* if (cbuf_len > 0) */
1076                                         {
1077                                         read_tty=0;
1078                                         write_ssl=1;
1079                                         }
1080                                 break;
1081                         case SSL_ERROR_WANT_WRITE:
1082                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1083                                 write_ssl=1;
1084                                 read_tty=0;
1085                                 break;
1086                         case SSL_ERROR_WANT_READ:
1087                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1088                                 write_tty=0;
1089                                 read_ssl=1;
1090                                 write_ssl=0;
1091                                 break;
1092                         case SSL_ERROR_WANT_X509_LOOKUP:
1093                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1094                                 break;
1095                         case SSL_ERROR_ZERO_RETURN:
1096                                 if (cbuf_len != 0)
1097                                         {
1098                                         BIO_printf(bio_c_out,"shutdown\n");
1099                                         goto shut;
1100                                         }
1101                                 else
1102                                         {
1103                                         read_tty=1;
1104                                         write_ssl=0;
1105                                         break;
1106                                         }
1107
1108                         case SSL_ERROR_SYSCALL:
1109                                 if ((k != 0) || (cbuf_len != 0))
1110                                         {
1111                                         BIO_printf(bio_err,"write:errno=%d\n",
1112                                                 get_last_socket_error());
1113                                         goto shut;
1114                                         }
1115                                 else
1116                                         {
1117                                         read_tty=1;
1118                                         write_ssl=0;
1119                                         }
1120                                 break;
1121                         case SSL_ERROR_SSL:
1122                                 ERR_print_errors(bio_err);
1123                                 goto shut;
1124                                 }
1125                         }
1126 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
1127                 /* Assume Windows/DOS can always write */
1128                 else if (!ssl_pending && write_tty)
1129 #else
1130                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1131 #endif
1132                         {
1133 #ifdef CHARSET_EBCDIC
1134                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1135 #endif
1136                         i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
1137
1138                         if (i <= 0)
1139                                 {
1140                                 BIO_printf(bio_c_out,"DONE\n");
1141                                 goto shut;
1142                                 /* goto end; */
1143                                 }
1144
1145                         sbuf_len-=i;;
1146                         sbuf_off+=i;
1147                         if (sbuf_len <= 0)
1148                                 {
1149                                 read_ssl=1;
1150                                 write_tty=0;
1151                                 }
1152                         }
1153                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1154                         {
1155 #ifdef RENEG
1156 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1157 #endif
1158 #if 1
1159                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1160 #else
1161 /* Demo for pending and peek :-) */
1162                         k=SSL_read(con,sbuf,16);
1163 { char zbuf[10240];
1164 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1165 }
1166 #endif
1167
1168                         switch (SSL_get_error(con,k))
1169                                 {
1170                         case SSL_ERROR_NONE:
1171                                 if (k <= 0)
1172                                         goto end;
1173                                 sbuf_off=0;
1174                                 sbuf_len=k;
1175
1176                                 read_ssl=0;
1177                                 write_tty=1;
1178                                 break;
1179                         case SSL_ERROR_WANT_WRITE:
1180                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1181                                 write_ssl=1;
1182                                 read_tty=0;
1183                                 break;
1184                         case SSL_ERROR_WANT_READ:
1185                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1186                                 write_tty=0;
1187                                 read_ssl=1;
1188                                 if ((read_tty == 0) && (write_ssl == 0))
1189                                         write_ssl=1;
1190                                 break;
1191                         case SSL_ERROR_WANT_X509_LOOKUP:
1192                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1193                                 break;
1194                         case SSL_ERROR_SYSCALL:
1195                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
1196                                 goto shut;
1197                         case SSL_ERROR_ZERO_RETURN:
1198                                 BIO_printf(bio_c_out,"closed\n");
1199                                 goto shut;
1200                         case SSL_ERROR_SSL:
1201                                 ERR_print_errors(bio_err);
1202                                 goto shut;
1203                                 /* break; */
1204                                 }
1205                         }
1206
1207 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1208 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1209                 else if (_kbhit())
1210 #else
1211                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1212 #endif
1213 #elif defined (OPENSSL_SYS_NETWARE)
1214         else if (_kbhit())
1215 #else
1216                 else if (FD_ISSET(fileno(stdin),&readfds))
1217 #endif
1218                         {
1219                         if (crlf)
1220                                 {
1221                                 int j, lf_num;
1222
1223                                 i=read(fileno(stdin),cbuf,BUFSIZZ/2);
1224                                 lf_num = 0;
1225                                 /* both loops are skipped when i <= 0 */
1226                                 for (j = 0; j < i; j++)
1227                                         if (cbuf[j] == '\n')
1228                                                 lf_num++;
1229                                 for (j = i-1; j >= 0; j--)
1230                                         {
1231                                         cbuf[j+lf_num] = cbuf[j];
1232                                         if (cbuf[j] == '\n')
1233                                                 {
1234                                                 lf_num--;
1235                                                 i++;
1236                                                 cbuf[j+lf_num] = '\r';
1237                                                 }
1238                                         }
1239                                 assert(lf_num == 0);
1240                                 }
1241                         else
1242                                 i=read(fileno(stdin),cbuf,BUFSIZZ);
1243
1244                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1245                                 {
1246                                 BIO_printf(bio_err,"DONE\n");
1247                                 goto shut;
1248                                 }
1249
1250                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1251                                 {
1252                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1253                                 SSL_renegotiate(con);
1254                                 cbuf_len=0;
1255                                 }
1256                         else
1257                                 {
1258                                 cbuf_len=i;
1259                                 cbuf_off=0;
1260 #ifdef CHARSET_EBCDIC
1261                                 ebcdic2ascii(cbuf, cbuf, i);
1262 #endif
1263                                 }
1264
1265                         write_ssl=1;
1266                         read_tty=0;
1267                         }
1268                 }
1269 shut:
1270         SSL_shutdown(con);
1271         SHUTDOWN(SSL_get_fd(con));
1272         ret=0;
1273 end:
1274         if(prexit) print_stuff(bio_c_out,con,1);
1275         if (con != NULL) SSL_free(con);
1276         if (con2 != NULL) SSL_free(con2);
1277         if (ctx != NULL) SSL_CTX_free(ctx);
1278         if (cert)
1279                 X509_free(cert);
1280         if (key)
1281                 EVP_PKEY_free(key);
1282         if (pass)
1283                 OPENSSL_free(pass);
1284         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1285         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1286         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1287         if (bio_c_out != NULL)
1288                 {
1289                 BIO_free(bio_c_out);
1290                 bio_c_out=NULL;
1291                 }
1292         apps_shutdown();
1293         OPENSSL_EXIT(ret);
1294         }
1295
1296
1297 static void print_stuff(BIO *bio, SSL *s, int full)
1298         {
1299         X509 *peer=NULL;
1300         char *p;
1301         static const char *space="                ";
1302         char buf[BUFSIZ];
1303         STACK_OF(X509) *sk;
1304         STACK_OF(X509_NAME) *sk2;
1305         SSL_CIPHER *c;
1306         X509_NAME *xn;
1307         int j,i;
1308 #ifndef OPENSSL_NO_COMP
1309         const COMP_METHOD *comp, *expansion;
1310 #endif
1311
1312         if (full)
1313                 {
1314                 int got_a_chain = 0;
1315
1316                 sk=SSL_get_peer_cert_chain(s);
1317                 if (sk != NULL)
1318                         {
1319                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1320
1321                         BIO_printf(bio,"---\nCertificate chain\n");
1322                         for (i=0; i<sk_X509_num(sk); i++)
1323                                 {
1324                                 X509_NAME_oneline(X509_get_subject_name(
1325                                         sk_X509_value(sk,i)),buf,sizeof buf);
1326                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1327                                 X509_NAME_oneline(X509_get_issuer_name(
1328                                         sk_X509_value(sk,i)),buf,sizeof buf);
1329                                 BIO_printf(bio,"   i:%s\n",buf);
1330                                 if (c_showcerts)
1331                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1332                                 }
1333                         }
1334
1335                 BIO_printf(bio,"---\n");
1336                 peer=SSL_get_peer_certificate(s);
1337                 if (peer != NULL)
1338                         {
1339                         BIO_printf(bio,"Server certificate\n");
1340                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1341                                 PEM_write_bio_X509(bio,peer);
1342                         X509_NAME_oneline(X509_get_subject_name(peer),
1343                                 buf,sizeof buf);
1344                         BIO_printf(bio,"subject=%s\n",buf);
1345                         X509_NAME_oneline(X509_get_issuer_name(peer),
1346                                 buf,sizeof buf);
1347                         BIO_printf(bio,"issuer=%s\n",buf);
1348                         }
1349                 else
1350                         BIO_printf(bio,"no peer certificate available\n");
1351
1352                 sk2=SSL_get_client_CA_list(s);
1353                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1354                         {
1355                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1356                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1357                                 {
1358                                 xn=sk_X509_NAME_value(sk2,i);
1359                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1360                                 BIO_write(bio,buf,strlen(buf));
1361                                 BIO_write(bio,"\n",1);
1362                                 }
1363                         }
1364                 else
1365                         {
1366                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1367                         }
1368                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1369                 if (p != NULL)
1370                         {
1371                         /* This works only for SSL 2.  In later protocol
1372                          * versions, the client does not know what other
1373                          * ciphers (in addition to the one to be used
1374                          * in the current connection) the server supports. */
1375
1376                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1377                         j=i=0;
1378                         while (*p)
1379                                 {
1380                                 if (*p == ':')
1381                                         {
1382                                         BIO_write(bio,space,15-j%25);
1383                                         i++;
1384                                         j=0;
1385                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1386                                         }
1387                                 else
1388                                         {
1389                                         BIO_write(bio,p,1);
1390                                         j++;
1391                                         }
1392                                 p++;
1393                                 }
1394                         BIO_write(bio,"\n",1);
1395                         }
1396
1397                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1398                         BIO_number_read(SSL_get_rbio(s)),
1399                         BIO_number_written(SSL_get_wbio(s)));
1400                 }
1401         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1402         c=SSL_get_current_cipher(s);
1403         BIO_printf(bio,"%s, Cipher is %s\n",
1404                 SSL_CIPHER_get_version(c),
1405                 SSL_CIPHER_get_name(c));
1406         if (peer != NULL) {
1407                 EVP_PKEY *pktmp;
1408                 pktmp = X509_get_pubkey(peer);
1409                 BIO_printf(bio,"Server public key is %d bit\n",
1410                                                          EVP_PKEY_bits(pktmp));
1411                 EVP_PKEY_free(pktmp);
1412         }
1413 #ifndef OPENSSL_NO_COMP
1414         comp=SSL_get_current_compression(s);
1415         expansion=SSL_get_current_expansion(s);
1416         BIO_printf(bio,"Compression: %s\n",
1417                 comp ? SSL_COMP_get_name(comp) : "NONE");
1418         BIO_printf(bio,"Expansion: %s\n",
1419                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1420 #endif
1421         SSL_SESSION_print(bio,SSL_get_session(s));
1422         BIO_printf(bio,"---\n");
1423         if (peer != NULL)
1424                 X509_free(peer);
1425         /* flush, or debugging output gets mixed with http response */
1426         (void)BIO_flush(bio);
1427         }
1428