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 link layer 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         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
 253         }
 254
 255 #ifndef OPENSSL_NO_TLSEXT
 256
 257 /* This is a context that we pass to callbacks */
 258 typedef struct tlsextctx_st {
 259    BIO * biodebug;
 260    int ack;
 261 } tlsextctx;
 262
 263
 264 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 265         {
 266         tlsextctx * p = (tlsextctx *) arg;
 267         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 268         if (SSL_get_servername_type(s) != -1)
 269                 p->ack = !SSL_session_reused(s) && hn != NULL;
 270         else
 271                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 272
 273         return SSL_TLSEXT_ERR_OK;
 274         }
 275 #endif
 276 enum
 277 {
 278         PROTO_OFF       = 0,
 279         PROTO_SMTP,
 280         PROTO_POP3,
 281         PROTO_IMAP,
 282         PROTO_FTP,
 283         PROTO_XMPP
 284 };
 285
 286 int MAIN(int, char **);
 287
 288 int MAIN(int argc, char **argv)
 289         {
 290         int off=0;
 291         SSL *con=NULL,*con2=NULL;
 292         X509_STORE *store = NULL;
 293         int s,k,width,state=0;
 294         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 295         int cbuf_len,cbuf_off;
 296         int sbuf_len,sbuf_off;
 297         fd_set readfds,writefds;
 298         short port=PORT;
 299         int full_log=1;
 300         char *host=SSL_HOST_NAME;
 301         char *cert_file=NULL,*key_file=NULL;
 302         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 303         char *passarg = NULL, *pass = NULL;
 304         X509 *cert = NULL;
 305         EVP_PKEY *key = NULL;
 306         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 307         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 308         int crlf=0;
 309         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 310         SSL_CTX *ctx=NULL;
 311         int ret=1,in_init=1,i,nbio_test=0;
 312         int starttls_proto = PROTO_OFF;
 313         int prexit = 0, vflags = 0;
 314         SSL_METHOD *meth=NULL;
 315 #ifdef sock_type
 316 #undef sock_type
 317 #endif
 318         int sock_type=SOCK_STREAM;
 319         BIO *sbio;
 320         char *inrand=NULL;
 321         int mbuf_len=0;
 322         struct timeval timeout, *timeoutp;
 323 #ifndef OPENSSL_NO_ENGINE
 324         char *engine_id=NULL;
 325         char *ssl_client_engine_id=NULL;
 326         ENGINE *ssl_client_engine=NULL;
 327 #endif
 328         ENGINE *e=NULL;
 329 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
 330         struct timeval tv;
 331 #endif
 332
 333 #ifndef OPENSSL_NO_TLSEXT
 334         char *servername = NULL;
 335         tlsextctx tlsextcbp =
 336         {NULL,0};
 337 #endif
 338         char *sess_in = NULL;
 339         char *sess_out = NULL;
 340         struct sockaddr peer;
 341         int peerlen = sizeof(peer);
 342         int enable_timeouts = 0 ;
 343         long socket_mtu = 0;
 344 #ifndef OPENSSL_NO_JPAKE
 345         char *jpake_secret = NULL;
 346 #endif
 347
 348 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 349         meth=SSLv23_client_method();
 350 #elif !defined(OPENSSL_NO_SSL3)
 351         meth=SSLv3_client_method();
 352 #elif !defined(OPENSSL_NO_SSL2)
 353         meth=SSLv2_client_method();
 354 #endif
 355
 356         apps_startup();
 357         c_Pause=0;
 358         c_quiet=0;
 359         c_ign_eof=0;
 360         c_debug=0;
 361         c_msg=0;
 362         c_showcerts=0;
 363
 364         if (bio_err == NULL)
 365                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 366
 367         if (!load_config(bio_err, NULL))
 368                 goto end;
 369
 370         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 371                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 372                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 373                 {
 374                 BIO_printf(bio_err,"out of memory\n");
 375                 goto end;
 376                 }
 377
 378         verify_depth=0;
 379         verify_error=X509_V_OK;
 380 #ifdef FIONBIO
 381         c_nbio=0;
 382 #endif
 383
 384         argc--;
 385         argv++;
 386         while (argc >= 1)
 387                 {
 388                 if      (strcmp(*argv,"-host") == 0)
 389                         {
 390                         if (--argc < 1) goto bad;
 391                         host= *(++argv);
 392                         }
 393                 else if (strcmp(*argv,"-port") == 0)
 394                         {
 395                         if (--argc < 1) goto bad;
 396                         port=atoi(*(++argv));
 397                         if (port == 0) goto bad;
 398                         }
 399                 else if (strcmp(*argv,"-connect") == 0)
 400                         {
 401                         if (--argc < 1) goto bad;
 402                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 403                                 goto bad;
 404                         }
 405                 else if (strcmp(*argv,"-verify") == 0)
 406                         {
 407                         verify=SSL_VERIFY_PEER;
 408                         if (--argc < 1) goto bad;
 409                         verify_depth=atoi(*(++argv));
 410                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 411                         }
 412                 else if (strcmp(*argv,"-cert") == 0)
 413                         {
 414                         if (--argc < 1) goto bad;
 415                         cert_file= *(++argv);
 416                         }
 417                 else if (strcmp(*argv,"-sess_out") == 0)
 418                         {
 419                         if (--argc < 1) goto bad;
 420                         sess_out = *(++argv);
 421                         }
 422                 else if (strcmp(*argv,"-sess_in") == 0)
 423                         {
 424                         if (--argc < 1) goto bad;
 425                         sess_in = *(++argv);
 426                         }
 427                 else if (strcmp(*argv,"-certform") == 0)
 428                         {
 429                         if (--argc < 1) goto bad;
 430                         cert_format = str2fmt(*(++argv));
 431                         }
 432                 else if (strcmp(*argv,"-crl_check") == 0)
 433                         vflags |= X509_V_FLAG_CRL_CHECK;
 434                 else if (strcmp(*argv,"-crl_check_all") == 0)
 435                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 436                 else if (strcmp(*argv,"-prexit") == 0)
 437                         prexit=1;
 438                 else if (strcmp(*argv,"-crlf") == 0)
 439                         crlf=1;
 440                 else if (strcmp(*argv,"-quiet") == 0)
 441                         {
 442                         c_quiet=1;
 443                         c_ign_eof=1;
 444                         }
 445                 else if (strcmp(*argv,"-ign_eof") == 0)
 446                         c_ign_eof=1;
 447                 else if (strcmp(*argv,"-no_ign_eof") == 0)
 448                         c_ign_eof=0;
 449                 else if (strcmp(*argv,"-pause") == 0)
 450                         c_Pause=1;
 451                 else if (strcmp(*argv,"-debug") == 0)
 452                         c_debug=1;
 453 #ifndef OPENSSL_NO_TLSEXT
 454                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 455                         c_tlsextdebug=1;
 456                 else if (strcmp(*argv,"-status") == 0)
 457                         c_status_req=1;
 458 #endif
 459 #ifdef WATT32
 460                 else if (strcmp(*argv,"-wdebug") == 0)
 461                         dbug_init();
 462 #endif
 463                 else if (strcmp(*argv,"-msg") == 0)
 464                         c_msg=1;
 465                 else if (strcmp(*argv,"-showcerts") == 0)
 466                         c_showcerts=1;
 467                 else if (strcmp(*argv,"-nbio_test") == 0)
 468                         nbio_test=1;
 469                 else if (strcmp(*argv,"-state") == 0)
 470                         state=1;
 471 #ifndef OPENSSL_NO_SSL2
 472                 else if (strcmp(*argv,"-ssl2") == 0)
 473                         meth=SSLv2_client_method();
 474 #endif
 475 #ifndef OPENSSL_NO_SSL3
 476                 else if (strcmp(*argv,"-ssl3") == 0)
 477                         meth=SSLv3_client_method();
 478 #endif
 479 #ifndef OPENSSL_NO_TLS1
 480                 else if (strcmp(*argv,"-tls1") == 0)
 481                         meth=TLSv1_client_method();
 482 #endif
 483 #ifndef OPENSSL_NO_DTLS1
 484                 else if (strcmp(*argv,"-dtls1") == 0)
 485                         {
 486                         meth=DTLSv1_client_method();
 487                         sock_type=SOCK_DGRAM;
 488                         }
 489                 else if (strcmp(*argv,"-timeout") == 0)
 490                         enable_timeouts=1;
 491                 else if (strcmp(*argv,"-mtu") == 0)
 492                         {
 493                         if (--argc < 1) goto bad;
 494                         socket_mtu = atol(*(++argv));
 495                         }
 496 #endif
 497                 else if (strcmp(*argv,"-bugs") == 0)
 498                         bugs=1;
 499                 else if (strcmp(*argv,"-keyform") == 0)
 500                         {
 501                         if (--argc < 1) goto bad;
 502                         key_format = str2fmt(*(++argv));
 503                         }
 504                 else if (strcmp(*argv,"-pass") == 0)
 505                         {
 506                         if (--argc < 1) goto bad;
 507                         passarg = *(++argv);
 508                         }
 509                 else if (strcmp(*argv,"-key") == 0)
 510                         {
 511                         if (--argc < 1) goto bad;
 512                         key_file= *(++argv);
 513                         }
 514                 else if (strcmp(*argv,"-reconnect") == 0)
 515                         {
 516                         reconnect=5;
 517                         }
 518                 else if (strcmp(*argv,"-CApath") == 0)
 519                         {
 520                         if (--argc < 1) goto bad;
 521                         CApath= *(++argv);
 522                         }
 523                 else if (strcmp(*argv,"-CAfile") == 0)
 524                         {
 525                         if (--argc < 1) goto bad;
 526                         CAfile= *(++argv);
 527                         }
 528                 else if (strcmp(*argv,"-no_tls1") == 0)
 529                         off|=SSL_OP_NO_TLSv1;
 530                 else if (strcmp(*argv,"-no_ssl3") == 0)
 531                         off|=SSL_OP_NO_SSLv3;
 532                 else if (strcmp(*argv,"-no_ssl2") == 0)
 533                         off|=SSL_OP_NO_SSLv2;
 534 #ifndef OPENSSL_NO_TLSEXT
 535                 else if (strcmp(*argv,"-no_ticket") == 0)
 536                         { off|=SSL_OP_NO_TICKET; }
 537 #endif
 538                 else if (strcmp(*argv,"-serverpref") == 0)
 539                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 540                 else if (strcmp(*argv,"-legacy_renegotiation") == 0)
 541                         off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
 542                 else if (strcmp(*argv,"-cipher") == 0)
 543                         {
 544                         if (--argc < 1) goto bad;
 545                         cipher= *(++argv);
 546                         }
 547 #ifdef FIONBIO
 548                 else if (strcmp(*argv,"-nbio") == 0)
 549                         { c_nbio=1; }
 550 #endif
 551                 else if (strcmp(*argv,"-starttls") == 0)
 552                         {
 553                         if (--argc < 1) goto bad;
 554                         ++argv;
 555                         if (strcmp(*argv,"smtp") == 0)
 556                                 starttls_proto = PROTO_SMTP;
 557                         else if (strcmp(*argv,"pop3") == 0)
 558                                 starttls_proto = PROTO_POP3;
 559                         else if (strcmp(*argv,"imap") == 0)
 560                                 starttls_proto = PROTO_IMAP;
 561                         else if (strcmp(*argv,"ftp") == 0)
 562                                 starttls_proto = PROTO_FTP;
 563                         else if (strcmp(*argv, "xmpp") == 0)
 564                                 starttls_proto = PROTO_XMPP;
 565                         else
 566                                 goto bad;
 567                         }
 568 #ifndef OPENSSL_NO_ENGINE
 569                 else if (strcmp(*argv,"-engine") == 0)
 570                         {
 571                         if (--argc < 1) goto bad;
 572                         engine_id = *(++argv);
 573                         }
 574                 else if (strcmp(*argv,"-ssl_client_engine") == 0)
 575                         {
 576                         if (--argc < 1) goto bad;
 577                         ssl_client_engine_id = *(++argv);
 578                         }
 579 #endif
 580                 else if (strcmp(*argv,"-rand") == 0)
 581                         {
 582                         if (--argc < 1) goto bad;
 583                         inrand= *(++argv);
 584                         }
 585 #ifndef OPENSSL_NO_TLSEXT
 586                 else if (strcmp(*argv,"-servername") == 0)
 587                         {
 588                         if (--argc < 1) goto bad;
 589                         servername= *(++argv);
 590                         /* meth=TLSv1_client_method(); */
 591                         }
 592 #endif
 593 #ifndef OPENSSL_NO_JPAKE
 594                 else if (strcmp(*argv,"-jpake") == 0)
 595                         {
 596                         if (--argc < 1) goto bad;
 597                         jpake_secret = *++argv;
 598                         }
 599 #endif
 600                 else
 601                         {
 602                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 603                         badop=1;
 604                         break;
 605                         }
 606                 argc--;
 607                 argv++;
 608                 }
 609         if (badop)
 610                 {
 611 bad:
 612                 sc_usage();
 613                 goto end;
 614                 }
 615
 616         OpenSSL_add_ssl_algorithms();
 617         SSL_load_error_strings();
 618
 619 #ifndef OPENSSL_NO_ENGINE
 620         e = setup_engine(bio_err, engine_id, 1);
 621         if (ssl_client_engine_id)
 622                 {
 623                 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
 624                 if (!ssl_client_engine)
 625                         {
 626                         BIO_printf(bio_err,
 627                                         "Error getting client auth engine\n");
 628                         goto end;
 629                         }
 630                 }
 631 #endif
 632         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
 633                 {
 634                 BIO_printf(bio_err, "Error getting password\n");
 635                 goto end;
 636                 }
 637
 638         if (key_file == NULL)
 639                 key_file = cert_file;
 640
 641
 642         if (key_file)
 643
 644                 {
 645
 646                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
 647                                "client certificate private key file");
 648                 if (!key)
 649                         {
 650                         ERR_print_errors(bio_err);
 651                         goto end;
 652                         }
 653
 654                 }
 655
 656         if (cert_file)
 657
 658                 {
 659                 cert = load_cert(bio_err,cert_file,cert_format,
 660                                 NULL, e, "client certificate file");
 661
 662                 if (!cert)
 663                         {
 664                         ERR_print_errors(bio_err);
 665                         goto end;
 666                         }
 667                 }
 668
 669         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 670                 && !RAND_status())
 671                 {
 672                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 673                 }
 674         if (inrand != NULL)
 675                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 676                         app_RAND_load_files(inrand));
 677
 678         if (bio_c_out == NULL)
 679                 {
 680                 if (c_quiet && !c_debug && !c_msg)
 681                         {
 682                         bio_c_out=BIO_new(BIO_s_null());
 683                         }
 684                 else
 685                         {
 686                         if (bio_c_out == NULL)
 687                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 688                         }
 689                 }
 690
 691         ctx=SSL_CTX_new(meth);
 692         if (ctx == NULL)
 693                 {
 694                 ERR_print_errors(bio_err);
 695                 goto end;
 696                 }
 697
 698 #ifndef OPENSSL_NO_ENGINE
 699         if (ssl_client_engine)
 700                 {
 701                 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine))
 702                         {
 703                         BIO_puts(bio_err, "Error setting client auth engine\n");
 704                         ERR_print_errors(bio_err);
 705                         ENGINE_free(ssl_client_engine);
 706                         goto end;
 707                         }
 708                 ENGINE_free(ssl_client_engine);
 709                 }
 710 #endif
 711
 712         if (bugs)
 713                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 714         else
 715                 SSL_CTX_set_options(ctx,off);
 716         /* DTLS: partial reads end up discarding unread UDP bytes :-(
 717          * Setting read ahead solves this problem.
 718          */
 719         if (sock_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
 720
 721         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 722         if (cipher != NULL)
 723                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 724                 BIO_printf(bio_err,"error setting cipher list\n");
 725                 ERR_print_errors(bio_err);
 726                 goto end;
 727         }
 728 #if 0
 729         else
 730                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 731 #endif
 732
 733         SSL_CTX_set_verify(ctx,verify,verify_callback);
 734         if (!set_cert_key_stuff(ctx,cert,key))
 735                 goto end;
 736
 737         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 738                 (!SSL_CTX_set_default_verify_paths(ctx)))
 739                 {
 740                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 741                 ERR_print_errors(bio_err);
 742                 /* goto end; */
 743                 }
 744
 745         store = SSL_CTX_get_cert_store(ctx);
 746         X509_STORE_set_flags(store, vflags);
 747 #ifndef OPENSSL_NO_TLSEXT
 748         if (servername != NULL)
 749                 {
 750                 tlsextcbp.biodebug = bio_err;
 751                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
 752                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
 753                 }
 754 #endif
 755
 756         con=SSL_new(ctx);
 757         if (sess_in)
 758                 {
 759                 SSL_SESSION *sess;
 760                 BIO *stmp = BIO_new_file(sess_in, "r");
 761                 if (!stmp)
 762                         {
 763                         BIO_printf(bio_err, "Can't open session file %s\n",
 764                                                 sess_in);
 765                         ERR_print_errors(bio_err);
 766                         goto end;
 767                         }
 768                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
 769                 BIO_free(stmp);
 770                 if (!sess)
 771                         {
 772                         BIO_printf(bio_err, "Can't open session file %s\n",
 773                                                 sess_in);
 774                         ERR_print_errors(bio_err);
 775                         goto end;
 776                         }
 777                 SSL_set_session(con, sess);
 778                 SSL_SESSION_free(sess);
 779                 }
 780 #ifndef OPENSSL_NO_TLSEXT
 781         if (servername != NULL)
 782                 {
 783                 if (!SSL_set_tlsext_host_name(con,servername))
 784                         {
 785                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
 786                         ERR_print_errors(bio_err);
 787                         goto end;
 788                         }
 789                 }
 790 #endif
 791
 792 #ifndef OPENSSL_NO_KRB5
 793         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 794                 {
 795                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 796                 }
 797 #endif  /* OPENSSL_NO_KRB5  */
 798 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 799
 800 re_start:
 801
 802         if (init_client(&s,host,port,sock_type) == 0)
 803                 {
 804                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 805                 SHUTDOWN(s);
 806                 goto end;
 807                 }
 808         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 809
 810 #ifdef FIONBIO
 811         if (c_nbio)
 812                 {
 813                 unsigned long l=1;
 814                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 815                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 816                         {
 817                         ERR_print_errors(bio_err);
 818                         goto end;
 819                         }
 820                 }
 821 #endif
 822         if (c_Pause & 0x01) con->debug=1;
 823
 824         if ( SSL_version(con) == DTLS1_VERSION)
 825                 {
 826
 827                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
 828                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
 829                         {
 830                         BIO_printf(bio_err, "getsockname:errno=%d\n",
 831                                 get_last_socket_error());
 832                         SHUTDOWN(s);
 833                         goto end;
 834                         }
 835
 836                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
 837
 838                 if ( enable_timeouts)
 839                         {
 840                         timeout.tv_sec = 0;
 841                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
 842                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
 843
 844                         timeout.tv_sec = 0;
 845                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
 846                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
 847                         }
 848
 849                 if (socket_mtu > 28)
 850                         {
 851                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
 852                         SSL_set_mtu(con, socket_mtu - 28);
 853                         }
 854                 else
 855                         /* want to do MTU discovery */
 856                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
 857                 }
 858         else
 859                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
 860
 861         if (nbio_test)
 862                 {
 863                 BIO *test;
 864
 865                 test=BIO_new(BIO_f_nbio_test());
 866                 sbio=BIO_push(test,sbio);
 867                 }
 868
 869         if (c_debug)
 870                 {
 871                 con->debug=1;
 872                 BIO_set_callback(sbio,bio_dump_callback);
 873                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
 874                 }
 875         if (c_msg)
 876                 {
 877                 SSL_set_msg_callback(con, msg_cb);
 878                 SSL_set_msg_callback_arg(con, bio_c_out);
 879                 }
 880 #ifndef OPENSSL_NO_TLSEXT
 881         if (c_tlsextdebug)
 882                 {
 883                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
 884                 SSL_set_tlsext_debug_arg(con, bio_c_out);
 885                 }
 886         if (c_status_req)
 887                 {
 888                 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
 889                 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
 890                 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
 891 #if 0
 892 {
 893 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
 894 OCSP_RESPID *id = OCSP_RESPID_new();
 895 id->value.byKey = ASN1_OCTET_STRING_new();
 896 id->type = V_OCSP_RESPID_KEY;
 897 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
 898 sk_OCSP_RESPID_push(ids, id);
 899 SSL_set_tlsext_status_ids(con, ids);
 900 }
 901 #endif
 902                 }
 903 #endif
 904 #ifndef OPENSSL_NO_JPAKE
 905         if (jpake_secret)
 906                 jpake_client_auth(bio_c_out, sbio, jpake_secret);
 907 #endif
 908
 909         SSL_set_bio(con,sbio,sbio);
 910         SSL_set_connect_state(con);
 911
 912         /* ok, lets connect */
 913         width=SSL_get_fd(con)+1;
 914
 915         read_tty=1;
 916         write_tty=0;
 917         tty_on=0;
 918         read_ssl=1;
 919         write_ssl=1;
 920
 921         cbuf_len=0;
 922         cbuf_off=0;
 923         sbuf_len=0;
 924         sbuf_off=0;
 925
 926         /* This is an ugly hack that does a lot of assumptions */
 927         /* We do have to handle multi-line responses which may come
 928            in a single packet or not. We therefore have to use
 929            BIO_gets() which does need a buffering BIO. So during
 930            the initial chitchat we do push a buffering BIO into the
 931            chain that is removed again later on to not disturb the
 932            rest of the s_client operation. */
 933         if (starttls_proto == PROTO_SMTP)
 934                 {
 935                 int foundit=0;
 936                 BIO *fbio = BIO_new(BIO_f_buffer());
 937                 BIO_push(fbio, sbio);
 938                 /* wait for multi-line response to end from SMTP */
 939                 do
 940                         {
 941                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 942                         }
 943                 while (mbuf_len>3 && mbuf[3]=='-');
 944                 /* STARTTLS command requires EHLO... */
 945                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
 946                 (void)BIO_flush(fbio);
 947                 /* wait for multi-line response to end EHLO SMTP response */
 948                 do
 949                         {
 950                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 951                         if (strstr(mbuf,"STARTTLS"))
 952                                 foundit=1;
 953                         }
 954                 while (mbuf_len>3 && mbuf[3]=='-');
 955                 (void)BIO_flush(fbio);
 956                 BIO_pop(fbio);
 957                 BIO_free(fbio);
 958                 if (!foundit)
 959                         BIO_printf(bio_err,
 960                                    "didn't found starttls in server response,"
 961                                    " try anyway...\n");
 962                 BIO_printf(sbio,"STARTTLS\r\n");
 963                 BIO_read(sbio,sbuf,BUFSIZZ);
 964                 }
 965         else if (starttls_proto == PROTO_POP3)
 966                 {
 967                 BIO_read(sbio,mbuf,BUFSIZZ);
 968                 BIO_printf(sbio,"STLS\r\n");
 969                 BIO_read(sbio,sbuf,BUFSIZZ);
 970                 }
 971         else if (starttls_proto == PROTO_IMAP)
 972                 {
 973                 int foundit=0;
 974                 BIO *fbio = BIO_new(BIO_f_buffer());
 975                 BIO_push(fbio, sbio);
 976                 BIO_gets(fbio,mbuf,BUFSIZZ);
 977                 /* STARTTLS command requires CAPABILITY... */
 978                 BIO_printf(fbio,". CAPABILITY\r\n");
 979                 (void)BIO_flush(fbio);
 980                 /* wait for multi-line CAPABILITY response */
 981                 do
 982                         {
 983                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
 984                         if (strstr(mbuf,"STARTTLS"))
 985                                 foundit=1;
 986                         }
 987                 while (mbuf_len>3 && mbuf[0]!='.');
 988                 (void)BIO_flush(fbio);
 989                 BIO_pop(fbio);
 990                 BIO_free(fbio);
 991                 if (!foundit)
 992                         BIO_printf(bio_err,
 993                                    "didn't found STARTTLS in server response,"
 994                                    " try anyway...\n");
 995                 BIO_printf(sbio,". STARTTLS\r\n");
 996                 BIO_read(sbio,sbuf,BUFSIZZ);
 997                 }
 998         else if (starttls_proto == PROTO_FTP)
 999                 {
1000                 BIO *fbio = BIO_new(BIO_f_buffer());
1001                 BIO_push(fbio, sbio);
1002                 /* wait for multi-line response to end from FTP */
1003                 do
1004                         {
1005                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1006                         }
1007                 while (mbuf_len>3 && mbuf[3]=='-');
1008                 (void)BIO_flush(fbio);
1009                 BIO_pop(fbio);
1010                 BIO_free(fbio);
1011                 BIO_printf(sbio,"AUTH TLS\r\n");
1012                 BIO_read(sbio,sbuf,BUFSIZZ);
1013                 }
1014         if (starttls_proto == PROTO_XMPP)
1015                 {
1016                 int seen = 0;
1017                 BIO_printf(sbio,"<stream:stream "
1018                     "xmlns:stream='http://etherx.jabber.org/streams' "
1019                     "xmlns='jabber:client' to='%s' version='1.0'>", host);
1020                 seen = BIO_read(sbio,mbuf,BUFSIZZ);
1021                 mbuf[seen] = 0;
1022                 while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'"))
1023                         {
1024                         if (strstr(mbuf, "/stream:features>"))
1025                                 goto shut;
1026                         seen = BIO_read(sbio,mbuf,BUFSIZZ);
1027                         mbuf[seen] = 0;
1028                         }
1029                 BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
1030                 seen = BIO_read(sbio,sbuf,BUFSIZZ);
1031                 sbuf[seen] = 0;
1032                 if (!strstr(sbuf, "<proceed"))
1033                         goto shut;
1034                 mbuf[0] = 0;
1035                 }
1036
1037         for (;;)
1038                 {
1039                 FD_ZERO(&readfds);
1040                 FD_ZERO(&writefds);
1041
1042                 if ((SSL_version(con) == DTLS1_VERSION) &&
1043                         DTLSv1_get_timeout(con, &timeout))
1044                         timeoutp = &timeout;
1045                 else
1046                         timeoutp = NULL;
1047
1048                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1049                         {
1050                         in_init=1;
1051                         tty_on=0;
1052                         }
1053                 else
1054                         {
1055                         tty_on=1;
1056                         if (in_init)
1057                                 {
1058                                 in_init=0;
1059                                 if (sess_out)
1060                                         {
1061                                         BIO *stmp = BIO_new_file(sess_out, "w");
1062                                         if (stmp)
1063                                                 {
1064                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1065                                                 BIO_free(stmp);
1066                                                 }
1067                                         else
1068                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1069                                         }
1070                                 print_stuff(bio_c_out,con,full_log);
1071                                 if (full_log > 0) full_log--;
1072
1073                                 if (starttls_proto)
1074                                         {
1075                                         BIO_printf(bio_err,"%s",mbuf);
1076                                         /* We don't need to know any more */
1077                                         starttls_proto = PROTO_OFF;
1078                                         }
1079
1080                                 if (reconnect)
1081                                         {
1082                                         reconnect--;
1083                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1084                                         SSL_shutdown(con);
1085                                         SSL_set_connect_state(con);
1086                                         SHUTDOWN(SSL_get_fd(con));
1087                                         goto re_start;
1088                                         }
1089                                 }
1090                         }
1091
1092                 ssl_pending = read_ssl && SSL_pending(con);
1093
1094                 if (!ssl_pending)
1095                         {
1096 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)
1097                         if (tty_on)
1098                                 {
1099                                 if (read_tty)  FD_SET(fileno(stdin),&readfds);
1100                                 if (write_tty) FD_SET(fileno(stdout),&writefds);
1101                                 }
1102                         if (read_ssl)
1103                                 FD_SET(SSL_get_fd(con),&readfds);
1104                         if (write_ssl)
1105                                 FD_SET(SSL_get_fd(con),&writefds);
1106 #else
1107                         if(!tty_on || !write_tty) {
1108                                 if (read_ssl)
1109                                         FD_SET(SSL_get_fd(con),&readfds);
1110                                 if (write_ssl)
1111                                         FD_SET(SSL_get_fd(con),&writefds);
1112                         }
1113 #endif
1114 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1115                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1116
1117                         /* Note: under VMS with SOCKETSHR the second parameter
1118                          * is currently of type (int *) whereas under other
1119                          * systems it is (void *) if you don't have a cast it
1120                          * will choke the compiler: if you do have a cast then
1121                          * you can either go for (int *) or (void *).
1122                          */
1123 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1124                         /* Under Windows/DOS we make the assumption that we can
1125                          * always write to the tty: therefore if we need to
1126                          * write to the tty we just fall through. Otherwise
1127                          * we timeout the select every second and see if there
1128                          * are any keypresses. Note: this is a hack, in a proper
1129                          * Windows application we wouldn't do this.
1130                          */
1131                         i=0;
1132                         if(!write_tty) {
1133                                 if(read_tty) {
1134                                         tv.tv_sec = 1;
1135                                         tv.tv_usec = 0;
1136                                         i=select(width,(void *)&readfds,(void *)&writefds,
1137                                                  NULL,&tv);
1138 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1139                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1140 #else
1141                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1142 #endif
1143                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1144                                          NULL,timeoutp);
1145                         }
1146 #elif defined(OPENSSL_SYS_NETWARE)
1147                         if(!write_tty) {
1148                                 if(read_tty) {
1149                                         tv.tv_sec = 1;
1150                                         tv.tv_usec = 0;
1151                                         i=select(width,(void *)&readfds,(void *)&writefds,
1152                                                 NULL,&tv);
1153                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1154                                         NULL,timeoutp);
1155                         }
1156 #else
1157                         i=select(width,(void *)&readfds,(void *)&writefds,
1158                                  NULL,timeoutp);
1159 #endif
1160                         if ( i < 0)
1161                                 {
1162                                 BIO_printf(bio_err,"bad select %d\n",
1163                                 get_last_socket_error());
1164                                 goto shut;
1165                                 /* goto end; */
1166                                 }
1167                         }
1168
1169                 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
1170                         {
1171                         BIO_printf(bio_err,"TIMEOUT occured\n");
1172                         }
1173
1174                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1175                         {
1176                         k=SSL_write(con,&(cbuf[cbuf_off]),
1177                                 (unsigned int)cbuf_len);
1178                         switch (SSL_get_error(con,k))
1179                                 {
1180                         case SSL_ERROR_NONE:
1181                                 cbuf_off+=k;
1182                                 cbuf_len-=k;
1183                                 if (k <= 0) goto end;
1184                                 /* we have done a  write(con,NULL,0); */
1185                                 if (cbuf_len <= 0)
1186                                         {
1187                                         read_tty=1;
1188                                         write_ssl=0;
1189                                         }
1190                                 else /* if (cbuf_len > 0) */
1191                                         {
1192                                         read_tty=0;
1193                                         write_ssl=1;
1194                                         }
1195                                 break;
1196                         case SSL_ERROR_WANT_WRITE:
1197                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1198                                 write_ssl=1;
1199                                 read_tty=0;
1200                                 break;
1201                         case SSL_ERROR_WANT_READ:
1202                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1203                                 write_tty=0;
1204                                 read_ssl=1;
1205                                 write_ssl=0;
1206                                 break;
1207                         case SSL_ERROR_WANT_X509_LOOKUP:
1208                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1209                                 break;
1210                         case SSL_ERROR_ZERO_RETURN:
1211                                 if (cbuf_len != 0)
1212                                         {
1213                                         BIO_printf(bio_c_out,"shutdown\n");
1214                                         goto shut;
1215                                         }
1216                                 else
1217                                         {
1218                                         read_tty=1;
1219                                         write_ssl=0;
1220                                         break;
1221                                         }
1222
1223                         case SSL_ERROR_SYSCALL:
1224                                 if ((k != 0) || (cbuf_len != 0))
1225                                         {
1226                                         BIO_printf(bio_err,"write:errno=%d\n",
1227                                                 get_last_socket_error());
1228                                         goto shut;
1229                                         }
1230                                 else
1231                                         {
1232                                         read_tty=1;
1233                                         write_ssl=0;
1234                                         }
1235                                 break;
1236                         case SSL_ERROR_SSL:
1237                                 ERR_print_errors(bio_err);
1238                                 goto shut;
1239                                 }
1240                         }
1241 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
1242                 /* Assume Windows/DOS can always write */
1243                 else if (!ssl_pending && write_tty)
1244 #else
1245                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1246 #endif
1247                         {
1248 #ifdef CHARSET_EBCDIC
1249                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1250 #endif
1251                         i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
1252
1253                         if (i <= 0)
1254                                 {
1255                                 BIO_printf(bio_c_out,"DONE\n");
1256                                 goto shut;
1257                                 /* goto end; */
1258                                 }
1259
1260                         sbuf_len-=i;;
1261                         sbuf_off+=i;
1262                         if (sbuf_len <= 0)
1263                                 {
1264                                 read_ssl=1;
1265                                 write_tty=0;
1266                                 }
1267                         }
1268                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1269                         {
1270 #ifdef RENEG
1271 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1272 #endif
1273 #if 1
1274                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1275 #else
1276 /* Demo for pending and peek :-) */
1277                         k=SSL_read(con,sbuf,16);
1278 { char zbuf[10240];
1279 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1280 }
1281 #endif
1282
1283                         switch (SSL_get_error(con,k))
1284                                 {
1285                         case SSL_ERROR_NONE:
1286                                 if (k <= 0)
1287                                         goto end;
1288                                 sbuf_off=0;
1289                                 sbuf_len=k;
1290
1291                                 read_ssl=0;
1292                                 write_tty=1;
1293                                 break;
1294                         case SSL_ERROR_WANT_WRITE:
1295                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1296                                 write_ssl=1;
1297                                 read_tty=0;
1298                                 break;
1299                         case SSL_ERROR_WANT_READ:
1300                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1301                                 write_tty=0;
1302                                 read_ssl=1;
1303                                 if ((read_tty == 0) && (write_ssl == 0))
1304                                         write_ssl=1;
1305                                 break;
1306                         case SSL_ERROR_WANT_X509_LOOKUP:
1307                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1308                                 break;
1309                         case SSL_ERROR_SYSCALL:
1310                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
1311                                 goto shut;
1312                         case SSL_ERROR_ZERO_RETURN:
1313                                 BIO_printf(bio_c_out,"closed\n");
1314                                 goto shut;
1315                         case SSL_ERROR_SSL:
1316                                 ERR_print_errors(bio_err);
1317                                 goto shut;
1318                                 /* break; */
1319                                 }
1320                         }
1321
1322 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1323 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1324                 else if (_kbhit())
1325 #else
1326                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1327 #endif
1328 #elif defined (OPENSSL_SYS_NETWARE)
1329         else if (_kbhit())
1330 #else
1331                 else if (FD_ISSET(fileno(stdin),&readfds))
1332 #endif
1333                         {
1334                         if (crlf)
1335                                 {
1336                                 int j, lf_num;
1337
1338                                 i=read(fileno(stdin),cbuf,BUFSIZZ/2);
1339                                 lf_num = 0;
1340                                 /* both loops are skipped when i <= 0 */
1341                                 for (j = 0; j < i; j++)
1342                                         if (cbuf[j] == '\n')
1343                                                 lf_num++;
1344                                 for (j = i-1; j >= 0; j--)
1345                                         {
1346                                         cbuf[j+lf_num] = cbuf[j];
1347                                         if (cbuf[j] == '\n')
1348                                                 {
1349                                                 lf_num--;
1350                                                 i++;
1351                                                 cbuf[j+lf_num] = '\r';
1352                                                 }
1353                                         }
1354                                 assert(lf_num == 0);
1355                                 }
1356                         else
1357                                 i=read(fileno(stdin),cbuf,BUFSIZZ);
1358
1359                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1360                                 {
1361                                 BIO_printf(bio_err,"DONE\n");
1362                                 goto shut;
1363                                 }
1364
1365                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1366                                 {
1367                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1368                                 SSL_renegotiate(con);
1369                                 cbuf_len=0;
1370                                 }
1371                         else
1372                                 {
1373                                 cbuf_len=i;
1374                                 cbuf_off=0;
1375 #ifdef CHARSET_EBCDIC
1376                                 ebcdic2ascii(cbuf, cbuf, i);
1377 #endif
1378                                 }
1379
1380                         write_ssl=1;
1381                         read_tty=0;
1382                         }
1383                 }
1384 shut:
1385         SSL_shutdown(con);
1386         SHUTDOWN(SSL_get_fd(con));
1387         ret=0;
1388 end:
1389         if(prexit) print_stuff(bio_c_out,con,1);
1390         if (con != NULL) SSL_free(con);
1391         if (con2 != NULL) SSL_free(con2);
1392         if (ctx != NULL) SSL_CTX_free(ctx);
1393         if (cert)
1394                 X509_free(cert);
1395         if (key)
1396                 EVP_PKEY_free(key);
1397         if (pass)
1398                 OPENSSL_free(pass);
1399         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1400         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1401         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1402         if (bio_c_out != NULL)
1403                 {
1404                 BIO_free(bio_c_out);
1405                 bio_c_out=NULL;
1406                 }
1407         apps_shutdown();
1408         OPENSSL_EXIT(ret);
1409         }
1410
1411
1412 static void print_stuff(BIO *bio, SSL *s, int full)
1413         {
1414         X509 *peer=NULL;
1415         char *p;
1416         static const char *space="                ";
1417         char buf[BUFSIZ];
1418         STACK_OF(X509) *sk;
1419         STACK_OF(X509_NAME) *sk2;
1420         SSL_CIPHER *c;
1421         X509_NAME *xn;
1422         int j,i;
1423 #ifndef OPENSSL_NO_COMP
1424         const COMP_METHOD *comp, *expansion;
1425 #endif
1426
1427         if (full)
1428                 {
1429                 int got_a_chain = 0;
1430
1431                 sk=SSL_get_peer_cert_chain(s);
1432                 if (sk != NULL)
1433                         {
1434                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1435
1436                         BIO_printf(bio,"---\nCertificate chain\n");
1437                         for (i=0; i<sk_X509_num(sk); i++)
1438                                 {
1439                                 X509_NAME_oneline(X509_get_subject_name(
1440                                         sk_X509_value(sk,i)),buf,sizeof buf);
1441                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1442                                 X509_NAME_oneline(X509_get_issuer_name(
1443                                         sk_X509_value(sk,i)),buf,sizeof buf);
1444                                 BIO_printf(bio,"   i:%s\n",buf);
1445                                 if (c_showcerts)
1446                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1447                                 }
1448                         }
1449
1450                 BIO_printf(bio,"---\n");
1451                 peer=SSL_get_peer_certificate(s);
1452                 if (peer != NULL)
1453                         {
1454                         BIO_printf(bio,"Server certificate\n");
1455                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1456                                 PEM_write_bio_X509(bio,peer);
1457                         X509_NAME_oneline(X509_get_subject_name(peer),
1458                                 buf,sizeof buf);
1459                         BIO_printf(bio,"subject=%s\n",buf);
1460                         X509_NAME_oneline(X509_get_issuer_name(peer),
1461                                 buf,sizeof buf);
1462                         BIO_printf(bio,"issuer=%s\n",buf);
1463                         }
1464                 else
1465                         BIO_printf(bio,"no peer certificate available\n");
1466
1467                 sk2=SSL_get_client_CA_list(s);
1468                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1469                         {
1470                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1471                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1472                                 {
1473                                 xn=sk_X509_NAME_value(sk2,i);
1474                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1475                                 BIO_write(bio,buf,strlen(buf));
1476                                 BIO_write(bio,"\n",1);
1477                                 }
1478                         }
1479                 else
1480                         {
1481                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1482                         }
1483                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1484                 if (p != NULL)
1485                         {
1486                         /* This works only for SSL 2.  In later protocol
1487                          * versions, the client does not know what other
1488                          * ciphers (in addition to the one to be used
1489                          * in the current connection) the server supports. */
1490
1491                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1492                         j=i=0;
1493                         while (*p)
1494                                 {
1495                                 if (*p == ':')
1496                                         {
1497                                         BIO_write(bio,space,15-j%25);
1498                                         i++;
1499                                         j=0;
1500                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1501                                         }
1502                                 else
1503                                         {
1504                                         BIO_write(bio,p,1);
1505                                         j++;
1506                                         }
1507                                 p++;
1508                                 }
1509                         BIO_write(bio,"\n",1);
1510                         }
1511
1512                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1513                         BIO_number_read(SSL_get_rbio(s)),
1514                         BIO_number_written(SSL_get_wbio(s)));
1515                 }
1516         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1517         c=SSL_get_current_cipher(s);
1518         BIO_printf(bio,"%s, Cipher is %s\n",
1519                 SSL_CIPHER_get_version(c),
1520                 SSL_CIPHER_get_name(c));
1521         if (peer != NULL) {
1522                 EVP_PKEY *pktmp;
1523                 pktmp = X509_get_pubkey(peer);
1524                 BIO_printf(bio,"Server public key is %d bit\n",
1525                                                          EVP_PKEY_bits(pktmp));
1526                 EVP_PKEY_free(pktmp);
1527         }
1528 #ifndef OPENSSL_NO_COMP
1529         comp=SSL_get_current_compression(s);
1530         expansion=SSL_get_current_expansion(s);
1531         BIO_printf(bio,"Compression: %s\n",
1532                 comp ? SSL_COMP_get_name(comp) : "NONE");
1533         BIO_printf(bio,"Expansion: %s\n",
1534                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1535 #endif
1536         SSL_SESSION_print(bio,SSL_get_session(s));
1537         BIO_printf(bio,"---\n");
1538         if (peer != NULL)
1539                 X509_free(peer);
1540         /* flush, or debugging output gets mixed with http response */
1541         (void)BIO_flush(bio);
1542         }
1543
1544 #ifndef OPENSSL_NO_TLSEXT
1545
1546 static int ocsp_resp_cb(SSL *s, void *arg)
1547         {
1548         const unsigned char *p;
1549         int len;
1550         OCSP_RESPONSE *rsp;
1551         len = SSL_get_tlsext_status_ocsp_resp(s, &p);
1552         BIO_puts(arg, "OCSP response: ");
1553         if (!p)
1554                 {
1555                 BIO_puts(arg, "no response sent\n");
1556                 return 1;
1557                 }
1558         rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
1559         if (!rsp)
1560                 {
1561                 BIO_puts(arg, "response parse error\n");
1562                 BIO_dump_indent(arg, (char *)p, len, 4);
1563                 return 0;
1564                 }
1565         BIO_puts(arg, "\n======================================\n");
1566         OCSP_RESPONSE_print(arg, rsp, 0);
1567         BIO_puts(arg, "======================================\n");
1568         OCSP_RESPONSE_free(rsp);
1569         return 1;
1570         }
1571 #endif  /* ndef OPENSSL_NO_TLSEXT */