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