apps/s_client.c

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