crypto/openssl-0.9/apps/s_client.c

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