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