crypto/openssl/apps/s_client.c

   1 /* apps/s_client.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111
 112 #include <assert.h>
 113 #include <stdio.h>
 114 #include <stdlib.h>
 115 #include <string.h>
 116 #include <openssl/e_os2.h>
 117 #ifdef OPENSSL_NO_STDIO
 118 #define APPS_WIN16
 119 #endif
 120
 121 /* With IPv6, it looks like Digital has mixed up the proper order of
 122    recursive header file inclusion, resulting in the compiler complaining
 123    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 124    is needed to have fileno() declared correctly...  So let's define u_int */
 125 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 126 #define __U_INT
 127 typedef unsigned int u_int;
 128 #endif
 129
 130 #define USE_SOCKETS
 131 #include "apps.h"
 132 #include <openssl/x509.h>
 133 #include <openssl/ssl.h>
 134 #include <openssl/err.h>
 135 #include <openssl/pem.h>
 136 #include <openssl/rand.h>
 137 #include <openssl/ocsp.h>
 138 #include "s_apps.h"
 139 #include "timeouts.h"
 140
 141 #ifdef OPENSSL_SYS_WINCE
 142 /* Windows CE incorrectly defines fileno as returning void*, so to avoid problems below... */
 143 #ifdef fileno
 144 #undef fileno
 145 #endif
 146 #define fileno(a) (int)_fileno(a)
 147 #endif
 148
 149
 150 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 151 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 152 #undef FIONBIO
 153 #endif
 154
 155 #undef PROG
 156 #define PROG    s_client_main
 157
 158 /*#define SSL_HOST_NAME "www.netscape.com" */
 159 /*#define SSL_HOST_NAME "193.118.187.102" */
 160 #define SSL_HOST_NAME   "localhost"
 161
 162 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 163
 164 #undef BUFSIZZ
 165 #define BUFSIZZ 1024*8
 166
 167 extern int verify_depth;
 168 extern int verify_error;
 169
 170 #ifdef FIONBIO
 171 static int c_nbio=0;
 172 #endif
 173 static int c_Pause=0;
 174 static int c_debug=0;
 175 #ifndef OPENSSL_NO_TLSEXT
 176 static int c_tlsextdebug=0;
 177 static int c_status_req=0;
 178 #endif
 179 static int c_msg=0;
 180 static int c_showcerts=0;
 181
 182 static void sc_usage(void);
 183 static void print_stuff(BIO *berr,SSL *con,int full);
 184 #ifndef OPENSSL_NO_TLSEXT
 185 static int ocsp_resp_cb(SSL *s, void *arg);
 186 #endif
 187 static BIO *bio_c_out=NULL;
 188 static int c_quiet=0;
 189 static int c_ign_eof=0;
 190
 191 static void sc_usage(void)
 192         {
 193         BIO_printf(bio_err,"usage: s_client args\n");
 194         BIO_printf(bio_err,"\n");
 195         BIO_printf(bio_err," -host host     - use -connect instead\n");
 196         BIO_printf(bio_err," -port port     - use -connect instead\n");
 197         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 198
 199         BIO_printf(bio_err," -verify depth - turn on peer certificate verification\n");
 200         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 201         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 202         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 203         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 204         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 205         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 206         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 207         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 208         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 209         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 210         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 211         BIO_printf(bio_err," -debug        - extra output\n");
 212 #ifdef WATT32
 213         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 214 #endif
 215         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 216         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 217         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 218 #ifdef FIONBIO
 219         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 220 #endif
 221         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 222         BIO_printf(bio_err," -quiet        - no s_client output\n");
 223         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 224         BIO_printf(bio_err," -no_ign_eof   - don't ignore input eof\n");
 225         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 226         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 227         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 228         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 229         BIO_printf(bio_err," -mtu          - set the MTU\n");
 230         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 231         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 232         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 233         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 234         BIO_printf(bio_err,"                 command to see what is available\n");
 235         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 236         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 237         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 238         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
 239         BIO_printf(bio_err,"                 are supported.\n");
 240 #ifndef OPENSSL_NO_ENGINE
 241         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 242 #endif
 243         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 244         BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
 245         BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
 246 #ifndef OPENSSL_NO_TLSEXT
 247         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 248         BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
 249         BIO_printf(bio_err," -status           - request certificate status from server\n");
 250         BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
 251 #endif
 252         }
 253
 254 #ifndef OPENSSL_NO_TLSEXT
 255
 256 /* This is a context that we pass to callbacks */
 257 typedef struct tlsextctx_st {
 258    BIO * biodebug;
 259    int ack;
 260 } tlsextctx;
 261
 262
 263 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 264         {
 265         tlsextctx * p = (tlsextctx *) arg;
 266         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 267         if (SSL_get_servername_type(s) != -1)
 268                 p->ack = !SSL_session_reused(s) && hn != NULL;
 269         else
 270                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 271
 272         return SSL_TLSEXT_ERR_OK;
 273         }
 274 #endif
 275 enum
 276 {
 277         PROTO_OFF       = 0,
 278         PROTO_SMTP,
 279         PROTO_POP3,
 280         PROTO_IMAP,
 281         PROTO_FTP,
 282         PROTO_XMPP
 283 };
 284
 285 int MAIN(int, char **);
 286
 287 int MAIN(int argc, char **argv)
 288         {
 289         int off=0;
 290         SSL *con=NULL,*con2=NULL;
 291         X509_STORE *store = NULL;
 292         int s,k,width,state=0;
 293         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 294         int cbuf_len,cbuf_off;
 295         int sbuf_len,sbuf_off;
 296         fd_set readfds,writefds;
 297         short port=PORT;
 298         int full_log=1;
 299         char *host=SSL_HOST_NAME;
 300         char *cert_file=NULL,*key_file=NULL;
 301         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 302         char *passarg = NULL, *pass = NULL;
 303         X509 *cert = NULL;
 304         EVP_PKEY *key = NULL;
 305         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 306         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 307         int crlf=0;
 308         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 309         SSL_CTX *ctx=NULL;
 310         int ret=1,in_init=1,i,nbio_test=0;
 311         int starttls_proto = PROTO_OFF;
 312         int prexit = 0, vflags = 0;
 313         SSL_METHOD *meth=NULL;
 314 #ifdef sock_type
 315 #undef sock_type
 316 #endif
 317         int sock_type=SOCK_STREAM;
 318         BIO *sbio;
 319         char *inrand=NULL;
 320         int mbuf_len=0;
 321 #ifndef OPENSSL_NO_ENGINE
 322         char *engine_id=NULL;
 323         char *ssl_client_engine_id=NULL;
 324         ENGINE *ssl_client_engine=NULL;
 325 #endif
 326         ENGINE *e=NULL;
 327 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
 328         struct timeval tv;
 329 #endif
 330
 331 #ifndef OPENSSL_NO_TLSEXT
 332         char *servername = NULL;
 333         tlsextctx tlsextcbp =
 334         {NULL,0};
 335 #endif
 336         char *sess_in = NULL;
 337         char *sess_out = NULL;
 338         struct sockaddr peer;
 339         int peerlen = sizeof(peer);
 340         int enable_timeouts = 0 ;
 341         long mtu = 0;
 342 #ifndef OPENSSL_NO_JPAKE
 343         char *jpake_secret = NULL;
 344 #endif
 345
 346 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 347         meth=SSLv23_client_method();
 348 #elif !defined(OPENSSL_NO_SSL3)
 349         meth=SSLv3_client_method();
 350 #elif !defined(OPENSSL_NO_SSL2)
 351         meth=SSLv2_client_method();
 352 #endif
 353
 354         apps_startup();
 355         c_Pause=0;
 356         c_quiet=0;
 357         c_ign_eof=0;
 358         c_debug=0;
 359         c_msg=0;
 360         c_showcerts=0;
 361
 362         if (bio_err == NULL)
 363                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 364
 365         if (!load_config(bio_err, NULL))
 366                 goto end;
 367
 368         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 369                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 370                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 371                 {
 372                 BIO_printf(bio_err,"out of memory\n");
 373                 goto end;
 374                 }
 375
 376         verify_depth=0;
 377         verify_error=X509_V_OK;
 378 #ifdef FIONBIO
 379         c_nbio=0;
 380 #endif
 381
 382         argc--;
 383         argv++;
 384         while (argc >= 1)
 385                 {
 386                 if      (strcmp(*argv,"-host") == 0)
 387                         {
 388                         if (--argc < 1) goto bad;
 389                         host= *(++argv);
 390                         }
 391                 else if (strcmp(*argv,"-port") == 0)
 392                         {
 393                         if (--argc < 1) goto bad;
 394                         port=atoi(*(++argv));
 395                         if (port == 0) goto bad;
 396                         }
 397                 else if (strcmp(*argv,"-connect") == 0)
 398                         {
 399                         if (--argc < 1) goto bad;
 400                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 401                                 goto bad;
 402                         }
 403                 else if (strcmp(*argv,"-verify") == 0)
 404                         {
 405                         verify=SSL_VERIFY_PEER;
 406                         if (--argc < 1) goto bad;
 407                         verify_depth=atoi(*(++argv));
 408                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 409                         }
 410                 else if (strcmp(*argv,"-cert") == 0)
 411                         {
 412                         if (--argc < 1) goto bad;
 413                         cert_file= *(++argv);
 414                         }
 415                 else if (strcmp(*argv,"-sess_out") == 0)
 416                         {
 417                         if (--argc < 1) goto bad;
 418                         sess_out = *(++argv);
 419                         }
 420                 else if (strcmp(*argv,"-sess_in") == 0)
 421                         {
 422                         if (--argc < 1) goto bad;
 423                         sess_in = *(++argv);
 424                         }
 425                 else if (strcmp(*argv,"-certform") == 0)
 426                         {
 427                         if (--argc < 1) goto bad;
 428                         cert_format = str2fmt(*(++argv));
 429                         }
 430                 else if (strcmp(*argv,"-crl_check") == 0)
 431                         vflags |= X509_V_FLAG_CRL_CHECK;
 432                 else if (strcmp(*argv,"-crl_check_all") == 0)
 433                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 434                 else if (strcmp(*argv,"-prexit") == 0)
 435                         prexit=1;
 436                 else if (strcmp(*argv,"-crlf") == 0)
 437                         crlf=1;
 438                 else if (strcmp(*argv,"-quiet") == 0)
 439                         {
 440                         c_quiet=1;
 441                         c_ign_eof=1;
 442                         }
 443                 else if (strcmp(*argv,"-ign_eof") == 0)
 444                         c_ign_eof=1;
 445                 else if (strcmp(*argv,"-no_ign_eof") == 0)
 446                         c_ign_eof=0;
 447                 else if (strcmp(*argv,"-pause") == 0)
 448                         c_Pause=1;
 449                 else if (strcmp(*argv,"-debug") == 0)
 450                         c_debug=1;
 451 #ifndef OPENSSL_NO_TLSEXT
 452                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 453                         c_tlsextdebug=1;
 454                 else if (strcmp(*argv,"-status") == 0)
 455                         c_status_req=1;
 456 #endif
 457 #ifdef WATT32
 458                 else if (strcmp(*argv,"-wdebug") == 0)
 459                         dbug_init();
 460 #endif
 461                 else if (strcmp(*argv,"-msg") == 0)
 462                         c_msg=1;
 463                 else if (strcmp(*argv,"-showcerts") == 0)
 464                         c_showcerts=1;
 465                 else if (strcmp(*argv,"-nbio_test") == 0)
 466                         nbio_test=1;
 467                 else if (strcmp(*argv,"-state") == 0)
 468                         state=1;
 469 #ifndef OPENSSL_NO_SSL2
 470                 else if (strcmp(*argv,"-ssl2") == 0)
 471                         meth=SSLv2_client_method();
 472 #endif
 473 #ifndef OPENSSL_NO_SSL3
 474                 else if (strcmp(*argv,"-ssl3") == 0)
 475                         meth=SSLv3_client_method();
 476 #endif
 477 #ifndef OPENSSL_NO_TLS1
 478                 else if (strcmp(*argv,"-tls1") == 0)
 479                         meth=TLSv1_client_method();
 480 #endif
 481 #ifndef OPENSSL_NO_DTLS1
 482                 else if (strcmp(*argv,"-dtls1") == 0)
 483                         {
 484                         meth=DTLSv1_client_method();
 485                         sock_type=SOCK_DGRAM;
 486                         }
 487                 else if (strcmp(*argv,"-timeout") == 0)
 488                         enable_timeouts=1;
 489                 else if (strcmp(*argv,"-mtu") == 0)
 490                         {
 491                         if (--argc < 1) goto bad;
 492                         mtu = atol(*(++argv));
 493                         }
 494 #endif
 495                 else if (strcmp(*argv,"-bugs") == 0)
 496                         bugs=1;
 497                 else if (strcmp(*argv,"-keyform") == 0)
 498                         {
 499                         if (--argc < 1) goto bad;
 500                         key_format = str2fmt(*(++argv));
 501                         }
 502                 else if (strcmp(*argv,"-pass") == 0)
 503                         {
 504                         if (--argc < 1) goto bad;
 505                         passarg = *(++argv);
 506                         }
 507                 else if (strcmp(*argv,"-key") == 0)
 508                         {
 509                         if (--argc < 1) goto bad;
 510                         key_file= *(++argv);
 511                         }
 512                 else if (strcmp(*argv,"-reconnect") == 0)
 513                         {
 514                         reconnect=5;
 515                         }
 516                 else if (strcmp(*argv,"-CApath") == 0)
 517                         {
 518                         if (--argc < 1) goto bad;
 519                         CApath= *(++argv);
 520                         }
 521                 else if (strcmp(*argv,"-CAfile") == 0)
 522                         {
 523                         if (--argc < 1) goto bad;
 524                         CAfile= *(++argv);
 525                         }
 526                 else if (strcmp(*argv,"-no_tls1") == 0)
 527                         off|=SSL_OP_NO_TLSv1;
 528                 else if (strcmp(*argv,"-no_ssl3") == 0)
 529                         off|=SSL_OP_NO_SSLv3;
 530                 else if (strcmp(*argv,"-no_ssl2") == 0)
 531                         off|=SSL_OP_NO_SSLv2;
 532 #ifndef OPENSSL_NO_TLSEXT
 533                 else if (strcmp(*argv,"-no_ticket") == 0)
 534                         { off|=SSL_OP_NO_TICKET; }
 535 #endif
 536                 else if (strcmp(*argv,"-serverpref") == 0)
 537                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 538                 else if (strcmp(*argv,"-cipher") == 0)
 539                         {
 540                         if (--argc < 1) goto bad;
 541                         cipher= *(++argv);
 542                         }
 543 #ifdef FIONBIO
 544                 else if (strcmp(*argv,"-nbio") == 0)
 545                         { c_nbio=1; }
 546 #endif
 547                 else if (strcmp(*argv,"-starttls") == 0)
 548                         {
 549                         if (--argc < 1) goto bad;
 550                         ++argv;
 551                         if (strcmp(*argv,"smtp") == 0)
 552                                 starttls_proto = PROTO_SMTP;
 553                         else if (strcmp(*argv,"pop3") == 0)
 554                                 starttls_proto = PROTO_POP3;
 555                         else if (strcmp(*argv,"imap") == 0)
 556                                 starttls_proto = PROTO_IMAP;
 557                         else if (strcmp(*argv,"ftp") == 0)
 558                                 starttls_proto = PROTO_FTP;
 559                         else if (strcmp(*argv, "xmpp") == 0)
 560                                 starttls_proto = PROTO_XMPP;
 561                         else
 562                                 goto bad;
 563                         }
 564 #ifndef OPENSSL_NO_ENGINE
 565                 else if (strcmp(*argv,"-engine") == 0)
 566                         {
 567                         if (--argc < 1) goto bad;
 568                         engine_id = *(++argv);
 569                         }
 570                 else if (strcmp(*argv,"-ssl_client_engine") == 0)
 571                         {
 572                         if (--argc < 1) goto bad;
 573                         ssl_client_engine_id = *(++argv);
 574                         }
 575 #endif
 576                 else if (strcmp(*argv,"-rand") == 0)
 577                         {
 578                         if (--argc < 1) goto bad;
 579                         inrand= *(++argv);
 580                         }
 581 #ifndef OPENSSL_NO_TLSEXT
 582                 else if (strcmp(*argv,"-servername") == 0)
 583                         {
 584                         if (--argc < 1) goto bad;
 585                         servername= *(++argv);
 586                         /* meth=TLSv1_client_method(); */
 587                         }
 588 #endif
 589 #ifndef OPENSSL_NO_JPAKE
 590                 else if (strcmp(*argv,"-jpake") == 0)
 591                         {
 592                         if (--argc < 1) goto bad;
 593                         jpake_secret = *++argv;
 594                         }
 595 #endif
 596                 else
 597                         {
 598                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 599                         badop=1;
 600                         break;
 601                         }
 602                 argc--;
 603                 argv++;
 604                 }
 605         if (badop)
 606                 {
 607 bad:
 608                 sc_usage();
 609                 goto end;
 610                 }
 611
 612         OpenSSL_add_ssl_algorithms();
 613         SSL_load_error_strings();
 614
 615 #ifndef OPENSSL_NO_ENGINE
 616         e = setup_engine(bio_err, engine_id, 1);
 617         if (ssl_client_engine_id)
 618                 {
 619                 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
 620                 if (!ssl_client_engine)
 621                         {
 622                         BIO_printf(bio_err,
 623                                         "Error getting client auth engine\n");
 624                         goto end;
 625                         }
 626                 }
 627 #endif
 628         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
 629                 {
 630                 BIO_printf(bio_err, "Error getting password\n");
 631                 goto end;
 632                 }
 633
 634         if (key_file == NULL)
 635                 key_file = cert_file;
 636
 637
 638         if (key_file)
 639
 640                 {
 641
 642                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
 643                                "client certificate private key file");
 644                 if (!key)
 645                         {
 646                         ERR_print_errors(bio_err);
 647                         goto end;
 648                         }
 649
 650                 }
 651
 652         if (cert_file)
 653
 654                 {
 655                 cert = load_cert(bio_err,cert_file,cert_format,
 656                                 NULL, e, "client certificate file");
 657
 658                 if (!cert)
 659                         {
 660                         ERR_print_errors(bio_err);
 661                         goto end;
 662                         }
 663                 }
 664
 665         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 666                 && !RAND_status())
 667                 {
 668                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 669                 }
 670         if (inrand != NULL)
 671                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 672                         app_RAND_load_files(inrand));
 673
 674         if (bio_c_out == NULL)
 675                 {
 676                 if (c_quiet && !c_debug && !c_msg)
 677                         {
 678                         bio_c_out=BIO_new(BIO_s_null());
 679                         }
 680                 else
 681                         {
 682                         if (bio_c_out == NULL)
 683                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 684                         }
 685                 }
 686
 687         ctx=SSL_CTX_new(meth);
 688         if (ctx == NULL)
 689                 {
 690                 ERR_print_errors(bio_err);
 691                 goto end;
 692                 }
 693
 694 #ifndef OPENSSL_NO_ENGINE
 695         if (ssl_client_engine)
 696                 {
 697                 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine))
 698                         {
 699                         BIO_puts(bio_err, "Error setting client auth engine\n");
 700                         ERR_print_errors(bio_err);
 701                         ENGINE_free(ssl_client_engine);
 702                         goto end;
 703                         }
 704                 ENGINE_free(ssl_client_engine);
 705                 }
 706 #endif
 707
 708         if (bugs)
 709                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 710         else
 711                 SSL_CTX_set_options(ctx,off);
 712         /* DTLS: partial reads end up discarding unread UDP bytes :-(
 713          * Setting read ahead solves this problem.
 714          */
 715         if (sock_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
 716
 717         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 718         if (cipher != NULL)
 719                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 720                 BIO_printf(bio_err,"error setting cipher list\n");
 721                 ERR_print_errors(bio_err);
 722                 goto end;
 723         }
 724 #if 0
 725         else
 726                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 727 #endif
 728
 729         SSL_CTX_set_verify(ctx,verify,verify_callback);
 730         if (!set_cert_key_stuff(ctx,cert,key))
 731                 goto end;
 732
 733         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 734                 (!SSL_CTX_set_default_verify_paths(ctx)))
 735                 {
 736                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 737                 ERR_print_errors(bio_err);
 738                 /* goto end; */
 739                 }
 740
 741         store = SSL_CTX_get_cert_store(ctx);
 742         X509_STORE_set_flags(store, vflags);
 743 #ifndef OPENSSL_NO_TLSEXT
 744         if (servername != NULL)
 745                 {
 746                 tlsextcbp.biodebug = bio_err;
 747                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
 748                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
 749                 }
 750 #endif
 751
 752         con=SSL_new(ctx);
 753         if (sess_in)
 754                 {
 755                 SSL_SESSION *sess;
 756                 BIO *stmp = BIO_new_file(sess_in, "r");
 757                 if (!stmp)
 758                         {
 759                         BIO_printf(bio_err, "Can't open session file %s\n",
 760                                                 sess_in);
 761                         ERR_print_errors(bio_err);
 762                         goto end;
 763                         }
 764                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
 765                 BIO_free(stmp);
 766                 if (!sess)
 767                         {
 768                         BIO_printf(bio_err, "Can't open session file %s\n",
 769                                                 sess_in);
 770                         ERR_print_errors(bio_err);
 771                         goto end;
 772                         }
 773                 SSL_set_session(con, sess);
 774                 SSL_SESSION_free(sess);
 775                 }
 776 #ifndef OPENSSL_NO_TLSEXT
 777         if (servername != NULL)
 778                 {
 779                 if (!SSL_set_tlsext_host_name(con,servername))
 780                         {
 781                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
 782                         ERR_print_errors(bio_err);
 783                         goto end;
 784                         }
 785                 }
 786 #endif
 787
 788 #ifndef OPENSSL_NO_KRB5
 789         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 790                 {
 791                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 792                 }
 793 #endif  /* OPENSSL_NO_KRB5  */
 794 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 795
 796 re_start:
 797
 798         if (init_client(&s,host,port,sock_type) == 0)
 799                 {
 800                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 801                 SHUTDOWN(s);
 802                 goto end;
 803                 }
 804         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 805
 806 #ifdef FIONBIO
 807         if (c_nbio)
 808                 {
 809                 unsigned long l=1;
 810                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 811                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 812                         {
 813                         ERR_print_errors(bio_err);
 814                         goto end;
 815                         }
 816                 }
 817 #endif
 818         if (c_Pause & 0x01) con->debug=1;
 819
 820         if ( SSL_version(con) == DTLS1_VERSION)
 821                 {
 822                 struct timeval timeout;
 823
 824                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
 825                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
 826                         {
 827                         BIO_printf(bio_err, "getsockname:errno=%d\n",
 828                                 get_last_socket_error());
 829                         SHUTDOWN(s);
 830                         goto end;
 831                         }
 832
 833                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
 834
 835                 if ( enable_timeouts)
 836                         {
 837                         timeout.tv_sec = 0;
 838                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
 839                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
 840
 841                         timeout.tv_sec = 0;
 842                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
 843                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
 844                         }
 845
 846                 if ( mtu > 0)
 847                         {
 848                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
 849                         SSL_set_mtu(con, mtu);
 850                         }
 851                 else
 852                         /* want to do MTU discovery */
 853                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
 854                 }
 855         else
 856                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
 857
 858         if (nbio_test)
 859                 {
 860                 BIO *test;
 861
 862                 test=BIO_new(BIO_f_nbio_test());
 863                 sbio=BIO_push(test,sbio);
 864                 }
 865
 866         if (c_debug)
 867                 {
 868                 con->debug=1;
 869                 BIO_set_callback(sbio,bio_dump_callback);
 870                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
 871                 }
 872         if (c_msg)
 873                 {
 874                 SSL_set_msg_callback(con, msg_cb);
 875                 SSL_set_msg_callback_arg(con, bio_c_out);
 876                 }
 877 #ifndef OPENSSL_NO_TLSEXT
 878         if (c_tlsextdebug)
 879                 {
 880                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
 881                 SSL_set_tlsext_debug_arg(con, bio_c_out);
 882                 }
 883         if (c_status_req)
 884                 {
 885                 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
 886                 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
 887                 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
 888 #if 0
 889 {
 890 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
 891 OCSP_RESPID *id = OCSP_RESPID_new();
 892 id->value.byKey = ASN1_OCTET_STRING_new();
 893 id->type = V_OCSP_RESPID_KEY;
 894 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
 895 sk_OCSP_RESPID_push(ids, id);
 896 SSL_set_tlsext_status_ids(con, ids);
 897 }
 898 #endif
 899                 }
 900 #endif
 901 #ifndef OPENSSL_NO_JPAKE
 902         if (jpake_secret)
 903                 jpake_client_auth(bio_c_out, sbio, jpake_secret);
 904 #endif
 905
 906         SSL_set_bio(con,sbio,sbio);
 907         SSL_set_connect_state(con);
 908
 909         /* ok, lets connect */
 910         width=SSL_get_fd(con)+1;
 911
 912         read_tty=1;
 913         write_tty=0;
 914         tty_on=0;
 915         read_ssl=1;
 916         write_ssl=1;
 917
 918         cbuf_len=0;
 919         cbuf_off=0;
 920         sbuf_len=0;
 921         sbuf_off=0;
 922
 923         /* This is an ugly hack that does a lot of assumptions */
 924         /* We do have to handle multi-line responses which may come
 925            in a single packet or not. We therefore have to use
 926            BIO_gets() which does need a buffering BIO. So during
 927            the initial chitchat we do push a buffering BIO into the
 928            chain that is removed again later on to not disturb the
 929            rest of the s_client operation. */
 930         if (starttls_proto == PROTO_SMTP)
 931                 {
 932                 int foundit=0;
 933                 BIO *fbio = BIO_new(BIO_f_buffer());
 934                 BIO_push(fbio, sbio);
 935                 /* wait for multi-line response to end from SMTP */
 936                 do
 937                         {
 938                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 939                         }
 940                 while (mbuf_len>3 && mbuf[3]=='-');
 941                 /* STARTTLS command requires EHLO... */
 942                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
 943                 (void)BIO_flush(fbio);
 944                 /* wait for multi-line response to end EHLO SMTP response */
 945                 do
 946                         {
 947                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 948                         if (strstr(mbuf,"STARTTLS"))
 949                                 foundit=1;
 950                         }
 951                 while (mbuf_len>3 && mbuf[3]=='-');
 952                 (void)BIO_flush(fbio);
 953                 BIO_pop(fbio);
 954                 BIO_free(fbio);
 955                 if (!foundit)
 956                         BIO_printf(bio_err,
 957                                    "didn't found starttls in server response,"
 958                                    " try anyway...\n");
 959                 BIO_printf(sbio,"STARTTLS\r\n");
 960                 BIO_read(sbio,sbuf,BUFSIZZ);
 961                 }
 962         else if (starttls_proto == PROTO_POP3)
 963                 {
 964                 BIO_read(sbio,mbuf,BUFSIZZ);
 965                 BIO_printf(sbio,"STLS\r\n");
 966                 BIO_read(sbio,sbuf,BUFSIZZ);
 967                 }
 968         else if (starttls_proto == PROTO_IMAP)
 969                 {
 970                 int foundit=0;
 971                 BIO *fbio = BIO_new(BIO_f_buffer());
 972                 BIO_push(fbio, sbio);
 973                 BIO_gets(fbio,mbuf,BUFSIZZ);
 974                 /* STARTTLS command requires CAPABILITY... */
 975                 BIO_printf(fbio,". CAPABILITY\r\n");
 976                 (void)BIO_flush(fbio);
 977                 /* wait for multi-line CAPABILITY response */
 978                 do
 979                         {
 980                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 981                         if (strstr(mbuf,"STARTTLS"))
 982                                 foundit=1;
 983                         }
 984                 while (mbuf_len>3 && mbuf[0]!='.');
 985                 (void)BIO_flush(fbio);
 986                 BIO_pop(fbio);
 987                 BIO_free(fbio);
 988                 if (!foundit)
 989                         BIO_printf(bio_err,
 990                                    "didn't found STARTTLS in server response,"
 991                                    " try anyway...\n");
 992                 BIO_printf(sbio,". STARTTLS\r\n");
 993                 BIO_read(sbio,sbuf,BUFSIZZ);
 994                 }
 995         else if (starttls_proto == PROTO_FTP)
 996                 {
 997                 BIO *fbio = BIO_new(BIO_f_buffer());
 998                 BIO_push(fbio, sbio);
 999                 /* wait for multi-line response to end from FTP */
1000                 do
1001                         {
1002                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1003                         }
1004                 while (mbuf_len>3 && mbuf[3]=='-');
1005                 (void)BIO_flush(fbio);
1006                 BIO_pop(fbio);
1007                 BIO_free(fbio);
1008                 BIO_printf(sbio,"AUTH TLS\r\n");
1009                 BIO_read(sbio,sbuf,BUFSIZZ);
1010                 }
1011         if (starttls_proto == PROTO_XMPP)
1012                 {
1013                 int seen = 0;
1014                 BIO_printf(sbio,"<stream:stream "
1015                     "xmlns:stream='http://etherx.jabber.org/streams' "
1016                     "xmlns='jabber:client' to='%s' version='1.0'>", host);
1017                 seen = BIO_read(sbio,mbuf,BUFSIZZ);
1018                 mbuf[seen] = 0;
1019                 while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'"))
1020                         {
1021                         if (strstr(mbuf, "/stream:features>"))
1022                                 goto shut;
1023                         seen = BIO_read(sbio,mbuf,BUFSIZZ);
1024                         mbuf[seen] = 0;
1025                         }
1026                 BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
1027                 seen = BIO_read(sbio,sbuf,BUFSIZZ);
1028                 sbuf[seen] = 0;
1029                 if (!strstr(sbuf, "<proceed"))
1030                         goto shut;
1031                 mbuf[0] = 0;
1032                 }
1033
1034         for (;;)
1035                 {
1036                 FD_ZERO(&readfds);
1037                 FD_ZERO(&writefds);
1038
1039                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1040                         {
1041                         in_init=1;
1042                         tty_on=0;
1043                         }
1044                 else
1045                         {
1046                         tty_on=1;
1047                         if (in_init)
1048                                 {
1049                                 in_init=0;
1050                                 if (sess_out)
1051                                         {
1052                                         BIO *stmp = BIO_new_file(sess_out, "w");
1053                                         if (stmp)
1054                                                 {
1055                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1056                                                 BIO_free(stmp);
1057                                                 }
1058                                         else
1059                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1060                                         }
1061                                 print_stuff(bio_c_out,con,full_log);
1062                                 if (full_log > 0) full_log--;
1063
1064                                 if (starttls_proto)
1065                                         {
1066                                         BIO_printf(bio_err,"%s",mbuf);
1067                                         /* We don't need to know any more */
1068                                         starttls_proto = PROTO_OFF;
1069                                         }
1070
1071                                 if (reconnect)
1072                                         {
1073                                         reconnect--;
1074                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1075                                         SSL_shutdown(con);
1076                                         SSL_set_connect_state(con);
1077                                         SHUTDOWN(SSL_get_fd(con));
1078                                         goto re_start;
1079                                         }
1080                                 }
1081                         }
1082
1083                 ssl_pending = read_ssl && SSL_pending(con);
1084
1085                 if (!ssl_pending)
1086                         {
1087 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)
1088                         if (tty_on)
1089                                 {
1090                                 if (read_tty)  FD_SET(fileno(stdin),&readfds);
1091                                 if (write_tty) FD_SET(fileno(stdout),&writefds);
1092                                 }
1093                         if (read_ssl)
1094                                 FD_SET(SSL_get_fd(con),&readfds);
1095                         if (write_ssl)
1096                                 FD_SET(SSL_get_fd(con),&writefds);
1097 #else
1098                         if(!tty_on || !write_tty) {
1099                                 if (read_ssl)
1100                                         FD_SET(SSL_get_fd(con),&readfds);
1101                                 if (write_ssl)
1102                                         FD_SET(SSL_get_fd(con),&writefds);
1103                         }
1104 #endif
1105 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1106                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1107
1108                         /* Note: under VMS with SOCKETSHR the second parameter
1109                          * is currently of type (int *) whereas under other
1110                          * systems it is (void *) if you don't have a cast it
1111                          * will choke the compiler: if you do have a cast then
1112                          * you can either go for (int *) or (void *).
1113                          */
1114 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1115                         /* Under Windows/DOS we make the assumption that we can
1116                          * always write to the tty: therefore if we need to
1117                          * write to the tty we just fall through. Otherwise
1118                          * we timeout the select every second and see if there
1119                          * are any keypresses. Note: this is a hack, in a proper
1120                          * Windows application we wouldn't do this.
1121                          */
1122                         i=0;
1123                         if(!write_tty) {
1124                                 if(read_tty) {
1125                                         tv.tv_sec = 1;
1126                                         tv.tv_usec = 0;
1127                                         i=select(width,(void *)&readfds,(void *)&writefds,
1128                                                  NULL,&tv);
1129 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1130                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1131 #else
1132                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1133 #endif
1134                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1135                                          NULL,NULL);
1136                         }
1137 #elif defined(OPENSSL_SYS_NETWARE)
1138                         if(!write_tty) {
1139                                 if(read_tty) {
1140                                         tv.tv_sec = 1;
1141                                         tv.tv_usec = 0;
1142                                         i=select(width,(void *)&readfds,(void *)&writefds,
1143                                                 NULL,&tv);
1144                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1145                                         NULL,NULL);
1146                         }
1147 #else
1148                         i=select(width,(void *)&readfds,(void *)&writefds,
1149                                  NULL,NULL);
1150 #endif
1151                         if ( i < 0)
1152                                 {
1153                                 BIO_printf(bio_err,"bad select %d\n",
1154                                 get_last_socket_error());
1155                                 goto shut;
1156                                 /* goto end; */
1157                                 }
1158                         }
1159
1160                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1161                         {
1162                         k=SSL_write(con,&(cbuf[cbuf_off]),
1163                                 (unsigned int)cbuf_len);
1164                         switch (SSL_get_error(con,k))
1165                                 {
1166                         case SSL_ERROR_NONE:
1167                                 cbuf_off+=k;
1168                                 cbuf_len-=k;
1169                                 if (k <= 0) goto end;
1170                                 /* we have done a  write(con,NULL,0); */
1171                                 if (cbuf_len <= 0)
1172                                         {
1173                                         read_tty=1;
1174                                         write_ssl=0;
1175                                         }
1176                                 else /* if (cbuf_len > 0) */
1177                                         {
1178                                         read_tty=0;
1179                                         write_ssl=1;
1180                                         }
1181                                 break;
1182                         case SSL_ERROR_WANT_WRITE:
1183                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1184                                 write_ssl=1;
1185                                 read_tty=0;
1186                                 break;
1187                         case SSL_ERROR_WANT_READ:
1188                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1189                                 write_tty=0;
1190                                 read_ssl=1;
1191                                 write_ssl=0;
1192                                 break;
1193                         case SSL_ERROR_WANT_X509_LOOKUP:
1194                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1195                                 break;
1196                         case SSL_ERROR_ZERO_RETURN:
1197                                 if (cbuf_len != 0)
1198                                         {
1199                                         BIO_printf(bio_c_out,"shutdown\n");
1200                                         goto shut;
1201                                         }
1202                                 else
1203                                         {
1204                                         read_tty=1;
1205                                         write_ssl=0;
1206                                         break;
1207                                         }
1208
1209                         case SSL_ERROR_SYSCALL:
1210                                 if ((k != 0) || (cbuf_len != 0))
1211                                         {
1212                                         BIO_printf(bio_err,"write:errno=%d\n",
1213                                                 get_last_socket_error());
1214                                         goto shut;
1215                                         }
1216                                 else
1217                                         {
1218                                         read_tty=1;
1219                                         write_ssl=0;
1220                                         }
1221                                 break;
1222                         case SSL_ERROR_SSL:
1223                                 ERR_print_errors(bio_err);
1224                                 goto shut;
1225                                 }
1226                         }
1227 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
1228                 /* Assume Windows/DOS can always write */
1229                 else if (!ssl_pending && write_tty)
1230 #else
1231                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1232 #endif
1233                         {
1234 #ifdef CHARSET_EBCDIC
1235                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1236 #endif
1237                         i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
1238
1239                         if (i <= 0)
1240                                 {
1241                                 BIO_printf(bio_c_out,"DONE\n");
1242                                 goto shut;
1243                                 /* goto end; */
1244                                 }
1245
1246                         sbuf_len-=i;;
1247                         sbuf_off+=i;
1248                         if (sbuf_len <= 0)
1249                                 {
1250                                 read_ssl=1;
1251                                 write_tty=0;
1252                                 }
1253                         }
1254                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1255                         {
1256 #ifdef RENEG
1257 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1258 #endif
1259 #if 1
1260                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1261 #else
1262 /* Demo for pending and peek :-) */
1263                         k=SSL_read(con,sbuf,16);
1264 { char zbuf[10240];
1265 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1266 }
1267 #endif
1268
1269                         switch (SSL_get_error(con,k))
1270                                 {
1271                         case SSL_ERROR_NONE:
1272                                 if (k <= 0)
1273                                         goto end;
1274                                 sbuf_off=0;
1275                                 sbuf_len=k;
1276
1277                                 read_ssl=0;
1278                                 write_tty=1;
1279                                 break;
1280                         case SSL_ERROR_WANT_WRITE:
1281                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1282                                 write_ssl=1;
1283                                 read_tty=0;
1284                                 break;
1285                         case SSL_ERROR_WANT_READ:
1286                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1287                                 write_tty=0;
1288                                 read_ssl=1;
1289                                 if ((read_tty == 0) && (write_ssl == 0))
1290                                         write_ssl=1;
1291                                 break;
1292                         case SSL_ERROR_WANT_X509_LOOKUP:
1293                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1294                                 break;
1295                         case SSL_ERROR_SYSCALL:
1296                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
1297                                 goto shut;
1298                         case SSL_ERROR_ZERO_RETURN:
1299                                 BIO_printf(bio_c_out,"closed\n");
1300                                 goto shut;
1301                         case SSL_ERROR_SSL:
1302                                 ERR_print_errors(bio_err);
1303                                 goto shut;
1304                                 /* break; */
1305                                 }
1306                         }
1307
1308 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1309 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1310                 else if (_kbhit())
1311 #else
1312                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1313 #endif
1314 #elif defined (OPENSSL_SYS_NETWARE)
1315         else if (_kbhit())
1316 #else
1317                 else if (FD_ISSET(fileno(stdin),&readfds))
1318 #endif
1319                         {
1320                         if (crlf)
1321                                 {
1322                                 int j, lf_num;
1323
1324                                 i=read(fileno(stdin),cbuf,BUFSIZZ/2);
1325                                 lf_num = 0;
1326                                 /* both loops are skipped when i <= 0 */
1327                                 for (j = 0; j < i; j++)
1328                                         if (cbuf[j] == '\n')
1329                                                 lf_num++;
1330                                 for (j = i-1; j >= 0; j--)
1331                                         {
1332                                         cbuf[j+lf_num] = cbuf[j];
1333                                         if (cbuf[j] == '\n')
1334                                                 {
1335                                                 lf_num--;
1336                                                 i++;
1337                                                 cbuf[j+lf_num] = '\r';
1338                                                 }
1339                                         }
1340                                 assert(lf_num == 0);
1341                                 }
1342                         else
1343                                 i=read(fileno(stdin),cbuf,BUFSIZZ);
1344
1345                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1346                                 {
1347                                 BIO_printf(bio_err,"DONE\n");
1348                                 goto shut;
1349                                 }
1350
1351                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1352                                 {
1353                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1354                                 SSL_renegotiate(con);
1355                                 cbuf_len=0;
1356                                 }
1357                         else
1358                                 {
1359                                 cbuf_len=i;
1360                                 cbuf_off=0;
1361 #ifdef CHARSET_EBCDIC
1362                                 ebcdic2ascii(cbuf, cbuf, i);
1363 #endif
1364                                 }
1365
1366                         write_ssl=1;
1367                         read_tty=0;
1368                         }
1369                 }
1370 shut:
1371         SSL_shutdown(con);
1372         SHUTDOWN(SSL_get_fd(con));
1373         ret=0;
1374 end:
1375         if(prexit) print_stuff(bio_c_out,con,1);
1376         if (con != NULL) SSL_free(con);
1377         if (con2 != NULL) SSL_free(con2);
1378         if (ctx != NULL) SSL_CTX_free(ctx);
1379         if (cert)
1380                 X509_free(cert);
1381         if (key)
1382                 EVP_PKEY_free(key);
1383         if (pass)
1384                 OPENSSL_free(pass);
1385         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1386         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1387         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1388         if (bio_c_out != NULL)
1389                 {
1390                 BIO_free(bio_c_out);
1391                 bio_c_out=NULL;
1392                 }
1393         apps_shutdown();
1394         OPENSSL_EXIT(ret);
1395         }
1396
1397
1398 static void print_stuff(BIO *bio, SSL *s, int full)
1399         {
1400         X509 *peer=NULL;
1401         char *p;
1402         static const char *space="                ";
1403         char buf[BUFSIZ];
1404         STACK_OF(X509) *sk;
1405         STACK_OF(X509_NAME) *sk2;
1406         SSL_CIPHER *c;
1407         X509_NAME *xn;
1408         int j,i;
1409 #ifndef OPENSSL_NO_COMP
1410         const COMP_METHOD *comp, *expansion;
1411 #endif
1412
1413         if (full)
1414                 {
1415                 int got_a_chain = 0;
1416
1417                 sk=SSL_get_peer_cert_chain(s);
1418                 if (sk != NULL)
1419                         {
1420                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1421
1422                         BIO_printf(bio,"---\nCertificate chain\n");
1423                         for (i=0; i<sk_X509_num(sk); i++)
1424                                 {
1425                                 X509_NAME_oneline(X509_get_subject_name(
1426                                         sk_X509_value(sk,i)),buf,sizeof buf);
1427                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1428                                 X509_NAME_oneline(X509_get_issuer_name(
1429                                         sk_X509_value(sk,i)),buf,sizeof buf);
1430                                 BIO_printf(bio,"   i:%s\n",buf);
1431                                 if (c_showcerts)
1432                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1433                                 }
1434                         }
1435
1436                 BIO_printf(bio,"---\n");
1437                 peer=SSL_get_peer_certificate(s);
1438                 if (peer != NULL)
1439                         {
1440                         BIO_printf(bio,"Server certificate\n");
1441                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1442                                 PEM_write_bio_X509(bio,peer);
1443                         X509_NAME_oneline(X509_get_subject_name(peer),
1444                                 buf,sizeof buf);
1445                         BIO_printf(bio,"subject=%s\n",buf);
1446                         X509_NAME_oneline(X509_get_issuer_name(peer),
1447                                 buf,sizeof buf);
1448                         BIO_printf(bio,"issuer=%s\n",buf);
1449                         }
1450                 else
1451                         BIO_printf(bio,"no peer certificate available\n");
1452
1453                 sk2=SSL_get_client_CA_list(s);
1454                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1455                         {
1456                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1457                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1458                                 {
1459                                 xn=sk_X509_NAME_value(sk2,i);
1460                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1461                                 BIO_write(bio,buf,strlen(buf));
1462                                 BIO_write(bio,"\n",1);
1463                                 }
1464                         }
1465                 else
1466                         {
1467                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1468                         }
1469                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1470                 if (p != NULL)
1471                         {
1472                         /* This works only for SSL 2.  In later protocol
1473                          * versions, the client does not know what other
1474                          * ciphers (in addition to the one to be used
1475                          * in the current connection) the server supports. */
1476
1477                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1478                         j=i=0;
1479                         while (*p)
1480                                 {
1481                                 if (*p == ':')
1482                                         {
1483                                         BIO_write(bio,space,15-j%25);
1484                                         i++;
1485                                         j=0;
1486                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1487                                         }
1488                                 else
1489                                         {
1490                                         BIO_write(bio,p,1);
1491                                         j++;
1492                                         }
1493                                 p++;
1494                                 }
1495                         BIO_write(bio,"\n",1);
1496                         }
1497
1498                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1499                         BIO_number_read(SSL_get_rbio(s)),
1500                         BIO_number_written(SSL_get_wbio(s)));
1501                 }
1502         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1503         c=SSL_get_current_cipher(s);
1504         BIO_printf(bio,"%s, Cipher is %s\n",
1505                 SSL_CIPHER_get_version(c),
1506                 SSL_CIPHER_get_name(c));
1507         if (peer != NULL) {
1508                 EVP_PKEY *pktmp;
1509                 pktmp = X509_get_pubkey(peer);
1510                 BIO_printf(bio,"Server public key is %d bit\n",
1511                                                          EVP_PKEY_bits(pktmp));
1512                 EVP_PKEY_free(pktmp);
1513         }
1514 #ifndef OPENSSL_NO_COMP
1515         comp=SSL_get_current_compression(s);
1516         expansion=SSL_get_current_expansion(s);
1517         BIO_printf(bio,"Compression: %s\n",
1518                 comp ? SSL_COMP_get_name(comp) : "NONE");
1519         BIO_printf(bio,"Expansion: %s\n",
1520                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1521 #endif
1522         SSL_SESSION_print(bio,SSL_get_session(s));
1523         BIO_printf(bio,"---\n");
1524         if (peer != NULL)
1525                 X509_free(peer);
1526         /* flush, or debugging output gets mixed with http response */
1527         (void)BIO_flush(bio);
1528         }
1529
1530 #ifndef OPENSSL_NO_TLSEXT
1531
1532 static int ocsp_resp_cb(SSL *s, void *arg)
1533         {
1534         const unsigned char *p;
1535         int len;
1536         OCSP_RESPONSE *rsp;
1537         len = SSL_get_tlsext_status_ocsp_resp(s, &p);
1538         BIO_puts(arg, "OCSP response: ");
1539         if (!p)
1540                 {
1541                 BIO_puts(arg, "no response sent\n");
1542                 return 1;
1543                 }
1544         rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
1545         if (!rsp)
1546                 {
1547                 BIO_puts(arg, "response parse error\n");
1548                 BIO_dump_indent(arg, (char *)p, len, 4);
1549                 return 0;
1550                 }
1551         BIO_puts(arg, "\n======================================\n");
1552         OCSP_RESPONSE_print(arg, rsp, 0);
1553         BIO_puts(arg, "======================================\n");
1554         OCSP_RESPONSE_free(rsp);
1555         return 1;
1556         }
1557 #endif  /* ndef OPENSSL_NO_TLSEXT */