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