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