1 /* apps/s_client.c */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 /* ==================================================================== 59 * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved. 60 * 61 * Redistribution and use in source and binary forms, with or without 62 * modification, are permitted provided that the following conditions 63 * are met: 64 * 65 * 1. Redistributions of source code must retain the above copyright 66 * notice, this list of conditions and the following disclaimer. 67 * 68 * 2. Redistributions in binary form must reproduce the above copyright 69 * notice, this list of conditions and the following disclaimer in 70 * the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3. All advertising materials mentioning features or use of this 74 * software must display the following acknowledgment: 75 * "This product includes software developed by the OpenSSL Project 76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 77 * 78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 79 * endorse or promote products derived from this software without 80 * prior written permission. For written permission, please contact 81 * openssl-core@openssl.org. 82 * 83 * 5. Products derived from this software may not be called "OpenSSL" 84 * nor may "OpenSSL" appear in their names without prior written 85 * permission of the OpenSSL Project. 86 * 87 * 6. Redistributions of any form whatsoever must retain the following 88 * acknowledgment: 89 * "This product includes software developed by the OpenSSL Project 90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 91 * 92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 103 * OF THE POSSIBILITY OF SUCH DAMAGE. 104 * ==================================================================== 105 * 106 * This product includes cryptographic software written by Eric Young 107 * (eay@cryptsoft.com). This product includes software written by Tim 108 * Hudson (tjh@cryptsoft.com). 109 * 110 */ 111 112 #include <assert.h> 113 #include <stdio.h> 114 #include <stdlib.h> 115 #include <string.h> 116 #include <openssl/e_os2.h> 117 #ifdef OPENSSL_NO_STDIO 118 #define APPS_WIN16 119 #endif 120 121 /* With IPv6, it looks like Digital has mixed up the proper order of 122 recursive header file inclusion, resulting in the compiler complaining 123 that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which 124 is needed to have fileno() declared correctly... So let's define u_int */ 125 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT) 126 #define __U_INT 127 typedef unsigned int u_int; 128 #endif 129 130 #define USE_SOCKETS 131 #include "apps.h" 132 #include <openssl/x509.h> 133 #include <openssl/ssl.h> 134 #include <openssl/err.h> 135 #include <openssl/pem.h> 136 #include <openssl/rand.h> 137 #include <openssl/ocsp.h> 138 #include "s_apps.h" 139 #include "timeouts.h" 140 141 #ifdef OPENSSL_SYS_WINCE 142 /* Windows CE incorrectly defines fileno as returning void*, so to avoid problems below... */ 143 #ifdef fileno 144 #undef fileno 145 #endif 146 #define fileno(a) (int)_fileno(a) 147 #endif 148 149 150 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000) 151 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */ 152 #undef FIONBIO 153 #endif 154 155 #undef PROG 156 #define PROG s_client_main 157 158 /*#define SSL_HOST_NAME "www.netscape.com" */ 159 /*#define SSL_HOST_NAME "193.118.187.102" */ 160 #define SSL_HOST_NAME "localhost" 161 162 /*#define TEST_CERT "client.pem" */ /* no default cert. */ 163 164 #undef BUFSIZZ 165 #define BUFSIZZ 1024*8 166 167 extern int verify_depth; 168 extern int verify_error; 169 170 #ifdef FIONBIO 171 static int c_nbio=0; 172 #endif 173 static int c_Pause=0; 174 static int c_debug=0; 175 #ifndef OPENSSL_NO_TLSEXT 176 static int c_tlsextdebug=0; 177 static int c_status_req=0; 178 #endif 179 static int c_msg=0; 180 static int c_showcerts=0; 181 182 static void sc_usage(void); 183 static void print_stuff(BIO *berr,SSL *con,int full); 184 #ifndef OPENSSL_NO_TLSEXT 185 static int ocsp_resp_cb(SSL *s, void *arg); 186 #endif 187 static BIO *bio_c_out=NULL; 188 static int c_quiet=0; 189 static int c_ign_eof=0; 190 191 static void sc_usage(void) 192 { 193 BIO_printf(bio_err,"usage: s_client args\n"); 194 BIO_printf(bio_err,"\n"); 195 BIO_printf(bio_err," -host host - use -connect instead\n"); 196 BIO_printf(bio_err," -port port - use -connect instead\n"); 197 BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR); 198 199 BIO_printf(bio_err," -verify depth - turn on peer certificate verification\n"); 200 BIO_printf(bio_err," -cert arg - certificate file to use, PEM format assumed\n"); 201 BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n"); 202 BIO_printf(bio_err," -key arg - Private key file to use, in cert file if\n"); 203 BIO_printf(bio_err," not specified but cert file is.\n"); 204 BIO_printf(bio_err," -keyform arg - key format (PEM or DER) PEM default\n"); 205 BIO_printf(bio_err," -pass arg - private key file pass phrase source\n"); 206 BIO_printf(bio_err," -CApath arg - PEM format directory of CA's\n"); 207 BIO_printf(bio_err," -CAfile arg - PEM format file of CA's\n"); 208 BIO_printf(bio_err," -reconnect - Drop and re-make the connection with the same Session-ID\n"); 209 BIO_printf(bio_err," -pause - sleep(1) after each read(2) and write(2) system call\n"); 210 BIO_printf(bio_err," -showcerts - show all certificates in the chain\n"); 211 BIO_printf(bio_err," -debug - extra output\n"); 212 #ifdef WATT32 213 BIO_printf(bio_err," -wdebug - WATT-32 tcp debugging\n"); 214 #endif 215 BIO_printf(bio_err," -msg - Show protocol messages\n"); 216 BIO_printf(bio_err," -nbio_test - more ssl protocol testing\n"); 217 BIO_printf(bio_err," -state - print the 'ssl' states\n"); 218 #ifdef FIONBIO 219 BIO_printf(bio_err," -nbio - Run with non-blocking IO\n"); 220 #endif 221 BIO_printf(bio_err," -crlf - convert LF from terminal into CRLF\n"); 222 BIO_printf(bio_err," -quiet - no s_client output\n"); 223 BIO_printf(bio_err," -ign_eof - ignore input eof (default when -quiet)\n"); 224 BIO_printf(bio_err," -no_ign_eof - don't ignore input eof\n"); 225 BIO_printf(bio_err," -ssl2 - just use SSLv2\n"); 226 BIO_printf(bio_err," -ssl3 - just use SSLv3\n"); 227 BIO_printf(bio_err," -tls1 - just use TLSv1\n"); 228 BIO_printf(bio_err," -dtls1 - just use DTLSv1\n"); 229 BIO_printf(bio_err," -mtu - set the link layer MTU\n"); 230 BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n"); 231 BIO_printf(bio_err," -bugs - Switch on all SSL implementation bug workarounds\n"); 232 BIO_printf(bio_err," -serverpref - Use server's cipher preferences (only SSLv2)\n"); 233 BIO_printf(bio_err," -cipher - preferred cipher to use, use the 'openssl ciphers'\n"); 234 BIO_printf(bio_err," command to see what is available\n"); 235 BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n"); 236 BIO_printf(bio_err," for those protocols that support it, where\n"); 237 BIO_printf(bio_err," 'prot' defines which one to assume. Currently,\n"); 238 BIO_printf(bio_err," only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n"); 239 BIO_printf(bio_err," are supported.\n"); 240 #ifndef OPENSSL_NO_ENGINE 241 BIO_printf(bio_err," -engine id - Initialise and use the specified engine\n"); 242 #endif 243 BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR); 244 BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n"); 245 BIO_printf(bio_err," -sess_in arg - file to read SSL session from\n"); 246 #ifndef OPENSSL_NO_TLSEXT 247 BIO_printf(bio_err," -servername host - Set TLS extension servername in ClientHello\n"); 248 BIO_printf(bio_err," -tlsextdebug - hex dump of all TLS extensions received\n"); 249 BIO_printf(bio_err," -status - request certificate status from server\n"); 250 BIO_printf(bio_err," -no_ticket - disable use of RFC4507bis session tickets\n"); 251 #endif 252 BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n"); 253 } 254 255 #ifndef OPENSSL_NO_TLSEXT 256 257 /* This is a context that we pass to callbacks */ 258 typedef struct tlsextctx_st { 259 BIO * biodebug; 260 int ack; 261 } tlsextctx; 262 263 264 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg) 265 { 266 tlsextctx * p = (tlsextctx *) arg; 267 const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name); 268 if (SSL_get_servername_type(s) != -1) 269 p->ack = !SSL_session_reused(s) && hn != NULL; 270 else 271 BIO_printf(bio_err,"Can't use SSL_get_servername\n"); 272 273 return SSL_TLSEXT_ERR_OK; 274 } 275 #endif 276 enum 277 { 278 PROTO_OFF = 0, 279 PROTO_SMTP, 280 PROTO_POP3, 281 PROTO_IMAP, 282 PROTO_FTP, 283 PROTO_XMPP 284 }; 285 286 int MAIN(int, char **); 287 288 int MAIN(int argc, char **argv) 289 { 290 int off=0, clr = 0; 291 SSL *con=NULL,*con2=NULL; 292 X509_STORE *store = NULL; 293 int s,k,width,state=0; 294 char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL; 295 int cbuf_len,cbuf_off; 296 int sbuf_len,sbuf_off; 297 fd_set readfds,writefds; 298 short port=PORT; 299 int full_log=1; 300 char *host=SSL_HOST_NAME; 301 char *cert_file=NULL,*key_file=NULL; 302 int cert_format = FORMAT_PEM, key_format = FORMAT_PEM; 303 char *passarg = NULL, *pass = NULL; 304 X509 *cert = NULL; 305 EVP_PKEY *key = NULL; 306 char *CApath=NULL,*CAfile=NULL,*cipher=NULL; 307 int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0; 308 int crlf=0; 309 int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending; 310 SSL_CTX *ctx=NULL; 311 int ret=1,in_init=1,i,nbio_test=0; 312 int starttls_proto = PROTO_OFF; 313 int prexit = 0, vflags = 0; 314 SSL_METHOD *meth=NULL; 315 #ifdef sock_type 316 #undef sock_type 317 #endif 318 int sock_type=SOCK_STREAM; 319 BIO *sbio; 320 char *inrand=NULL; 321 int mbuf_len=0; 322 struct timeval timeout, *timeoutp; 323 #ifndef OPENSSL_NO_ENGINE 324 char *engine_id=NULL; 325 char *ssl_client_engine_id=NULL; 326 ENGINE *ssl_client_engine=NULL; 327 #endif 328 ENGINE *e=NULL; 329 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) 330 struct timeval tv; 331 #endif 332 333 #ifndef OPENSSL_NO_TLSEXT 334 char *servername = NULL; 335 tlsextctx tlsextcbp = 336 {NULL,0}; 337 #endif 338 char *sess_in = NULL; 339 char *sess_out = NULL; 340 struct sockaddr peer; 341 int peerlen = sizeof(peer); 342 int enable_timeouts = 0 ; 343 long socket_mtu = 0; 344 #ifndef OPENSSL_NO_JPAKE 345 char *jpake_secret = NULL; 346 #endif 347 348 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3) 349 meth=SSLv23_client_method(); 350 #elif !defined(OPENSSL_NO_SSL3) 351 meth=SSLv3_client_method(); 352 #elif !defined(OPENSSL_NO_SSL2) 353 meth=SSLv2_client_method(); 354 #endif 355 356 apps_startup(); 357 c_Pause=0; 358 c_quiet=0; 359 c_ign_eof=0; 360 c_debug=0; 361 c_msg=0; 362 c_showcerts=0; 363 364 if (bio_err == NULL) 365 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE); 366 367 if (!load_config(bio_err, NULL)) 368 goto end; 369 370 if ( ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) || 371 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) || 372 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL)) 373 { 374 BIO_printf(bio_err,"out of memory\n"); 375 goto end; 376 } 377 378 verify_depth=0; 379 verify_error=X509_V_OK; 380 #ifdef FIONBIO 381 c_nbio=0; 382 #endif 383 384 argc--; 385 argv++; 386 while (argc >= 1) 387 { 388 if (strcmp(*argv,"-host") == 0) 389 { 390 if (--argc < 1) goto bad; 391 host= *(++argv); 392 } 393 else if (strcmp(*argv,"-port") == 0) 394 { 395 if (--argc < 1) goto bad; 396 port=atoi(*(++argv)); 397 if (port == 0) goto bad; 398 } 399 else if (strcmp(*argv,"-connect") == 0) 400 { 401 if (--argc < 1) goto bad; 402 if (!extract_host_port(*(++argv),&host,NULL,&port)) 403 goto bad; 404 } 405 else if (strcmp(*argv,"-verify") == 0) 406 { 407 verify=SSL_VERIFY_PEER; 408 if (--argc < 1) goto bad; 409 verify_depth=atoi(*(++argv)); 410 BIO_printf(bio_err,"verify depth is %d\n",verify_depth); 411 } 412 else if (strcmp(*argv,"-cert") == 0) 413 { 414 if (--argc < 1) goto bad; 415 cert_file= *(++argv); 416 } 417 else if (strcmp(*argv,"-sess_out") == 0) 418 { 419 if (--argc < 1) goto bad; 420 sess_out = *(++argv); 421 } 422 else if (strcmp(*argv,"-sess_in") == 0) 423 { 424 if (--argc < 1) goto bad; 425 sess_in = *(++argv); 426 } 427 else if (strcmp(*argv,"-certform") == 0) 428 { 429 if (--argc < 1) goto bad; 430 cert_format = str2fmt(*(++argv)); 431 } 432 else if (strcmp(*argv,"-crl_check") == 0) 433 vflags |= X509_V_FLAG_CRL_CHECK; 434 else if (strcmp(*argv,"-crl_check_all") == 0) 435 vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL; 436 else if (strcmp(*argv,"-prexit") == 0) 437 prexit=1; 438 else if (strcmp(*argv,"-crlf") == 0) 439 crlf=1; 440 else if (strcmp(*argv,"-quiet") == 0) 441 { 442 c_quiet=1; 443 c_ign_eof=1; 444 } 445 else if (strcmp(*argv,"-ign_eof") == 0) 446 c_ign_eof=1; 447 else if (strcmp(*argv,"-no_ign_eof") == 0) 448 c_ign_eof=0; 449 else if (strcmp(*argv,"-pause") == 0) 450 c_Pause=1; 451 else if (strcmp(*argv,"-debug") == 0) 452 c_debug=1; 453 #ifndef OPENSSL_NO_TLSEXT 454 else if (strcmp(*argv,"-tlsextdebug") == 0) 455 c_tlsextdebug=1; 456 else if (strcmp(*argv,"-status") == 0) 457 c_status_req=1; 458 #endif 459 #ifdef WATT32 460 else if (strcmp(*argv,"-wdebug") == 0) 461 dbug_init(); 462 #endif 463 else if (strcmp(*argv,"-msg") == 0) 464 c_msg=1; 465 else if (strcmp(*argv,"-showcerts") == 0) 466 c_showcerts=1; 467 else if (strcmp(*argv,"-nbio_test") == 0) 468 nbio_test=1; 469 else if (strcmp(*argv,"-state") == 0) 470 state=1; 471 #ifndef OPENSSL_NO_SSL2 472 else if (strcmp(*argv,"-ssl2") == 0) 473 meth=SSLv2_client_method(); 474 #endif 475 #ifndef OPENSSL_NO_SSL3 476 else if (strcmp(*argv,"-ssl3") == 0) 477 meth=SSLv3_client_method(); 478 #endif 479 #ifndef OPENSSL_NO_TLS1 480 else if (strcmp(*argv,"-tls1") == 0) 481 meth=TLSv1_client_method(); 482 #endif 483 #ifndef OPENSSL_NO_DTLS1 484 else if (strcmp(*argv,"-dtls1") == 0) 485 { 486 meth=DTLSv1_client_method(); 487 sock_type=SOCK_DGRAM; 488 } 489 else if (strcmp(*argv,"-timeout") == 0) 490 enable_timeouts=1; 491 else if (strcmp(*argv,"-mtu") == 0) 492 { 493 if (--argc < 1) goto bad; 494 socket_mtu = atol(*(++argv)); 495 } 496 #endif 497 else if (strcmp(*argv,"-bugs") == 0) 498 bugs=1; 499 else if (strcmp(*argv,"-keyform") == 0) 500 { 501 if (--argc < 1) goto bad; 502 key_format = str2fmt(*(++argv)); 503 } 504 else if (strcmp(*argv,"-pass") == 0) 505 { 506 if (--argc < 1) goto bad; 507 passarg = *(++argv); 508 } 509 else if (strcmp(*argv,"-key") == 0) 510 { 511 if (--argc < 1) goto bad; 512 key_file= *(++argv); 513 } 514 else if (strcmp(*argv,"-reconnect") == 0) 515 { 516 reconnect=5; 517 } 518 else if (strcmp(*argv,"-CApath") == 0) 519 { 520 if (--argc < 1) goto bad; 521 CApath= *(++argv); 522 } 523 else if (strcmp(*argv,"-CAfile") == 0) 524 { 525 if (--argc < 1) goto bad; 526 CAfile= *(++argv); 527 } 528 else if (strcmp(*argv,"-no_tls1") == 0) 529 off|=SSL_OP_NO_TLSv1; 530 else if (strcmp(*argv,"-no_ssl3") == 0) 531 off|=SSL_OP_NO_SSLv3; 532 else if (strcmp(*argv,"-no_ssl2") == 0) 533 off|=SSL_OP_NO_SSLv2; 534 #ifndef OPENSSL_NO_TLSEXT 535 else if (strcmp(*argv,"-no_ticket") == 0) 536 { off|=SSL_OP_NO_TICKET; } 537 #endif 538 else if (strcmp(*argv,"-serverpref") == 0) 539 off|=SSL_OP_CIPHER_SERVER_PREFERENCE; 540 else if (strcmp(*argv,"-legacy_renegotiation") == 0) 541 off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION; 542 else if (strcmp(*argv,"-legacy_server_connect") == 0) 543 { off|=SSL_OP_LEGACY_SERVER_CONNECT; } 544 else if (strcmp(*argv,"-no_legacy_server_connect") == 0) 545 { clr|=SSL_OP_LEGACY_SERVER_CONNECT; } 546 else if (strcmp(*argv,"-cipher") == 0) 547 { 548 if (--argc < 1) goto bad; 549 cipher= *(++argv); 550 } 551 #ifdef FIONBIO 552 else if (strcmp(*argv,"-nbio") == 0) 553 { c_nbio=1; } 554 #endif 555 else if (strcmp(*argv,"-starttls") == 0) 556 { 557 if (--argc < 1) goto bad; 558 ++argv; 559 if (strcmp(*argv,"smtp") == 0) 560 starttls_proto = PROTO_SMTP; 561 else if (strcmp(*argv,"pop3") == 0) 562 starttls_proto = PROTO_POP3; 563 else if (strcmp(*argv,"imap") == 0) 564 starttls_proto = PROTO_IMAP; 565 else if (strcmp(*argv,"ftp") == 0) 566 starttls_proto = PROTO_FTP; 567 else if (strcmp(*argv, "xmpp") == 0) 568 starttls_proto = PROTO_XMPP; 569 else 570 goto bad; 571 } 572 #ifndef OPENSSL_NO_ENGINE 573 else if (strcmp(*argv,"-engine") == 0) 574 { 575 if (--argc < 1) goto bad; 576 engine_id = *(++argv); 577 } 578 else if (strcmp(*argv,"-ssl_client_engine") == 0) 579 { 580 if (--argc < 1) goto bad; 581 ssl_client_engine_id = *(++argv); 582 } 583 #endif 584 else if (strcmp(*argv,"-rand") == 0) 585 { 586 if (--argc < 1) goto bad; 587 inrand= *(++argv); 588 } 589 #ifndef OPENSSL_NO_TLSEXT 590 else if (strcmp(*argv,"-servername") == 0) 591 { 592 if (--argc < 1) goto bad; 593 servername= *(++argv); 594 /* meth=TLSv1_client_method(); */ 595 } 596 #endif 597 #ifndef OPENSSL_NO_JPAKE 598 else if (strcmp(*argv,"-jpake") == 0) 599 { 600 if (--argc < 1) goto bad; 601 jpake_secret = *++argv; 602 } 603 #endif 604 else 605 { 606 BIO_printf(bio_err,"unknown option %s\n",*argv); 607 badop=1; 608 break; 609 } 610 argc--; 611 argv++; 612 } 613 if (badop) 614 { 615 bad: 616 sc_usage(); 617 goto end; 618 } 619 620 OpenSSL_add_ssl_algorithms(); 621 SSL_load_error_strings(); 622 623 #ifndef OPENSSL_NO_ENGINE 624 e = setup_engine(bio_err, engine_id, 1); 625 if (ssl_client_engine_id) 626 { 627 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id); 628 if (!ssl_client_engine) 629 { 630 BIO_printf(bio_err, 631 "Error getting client auth engine\n"); 632 goto end; 633 } 634 } 635 #endif 636 if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) 637 { 638 BIO_printf(bio_err, "Error getting password\n"); 639 goto end; 640 } 641 642 if (key_file == NULL) 643 key_file = cert_file; 644 645 646 if (key_file) 647 648 { 649 650 key = load_key(bio_err, key_file, key_format, 0, pass, e, 651 "client certificate private key file"); 652 if (!key) 653 { 654 ERR_print_errors(bio_err); 655 goto end; 656 } 657 658 } 659 660 if (cert_file) 661 662 { 663 cert = load_cert(bio_err,cert_file,cert_format, 664 NULL, e, "client certificate file"); 665 666 if (!cert) 667 { 668 ERR_print_errors(bio_err); 669 goto end; 670 } 671 } 672 673 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL 674 && !RAND_status()) 675 { 676 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n"); 677 } 678 if (inrand != NULL) 679 BIO_printf(bio_err,"%ld semi-random bytes loaded\n", 680 app_RAND_load_files(inrand)); 681 682 if (bio_c_out == NULL) 683 { 684 if (c_quiet && !c_debug && !c_msg) 685 { 686 bio_c_out=BIO_new(BIO_s_null()); 687 } 688 else 689 { 690 if (bio_c_out == NULL) 691 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE); 692 } 693 } 694 695 ctx=SSL_CTX_new(meth); 696 if (ctx == NULL) 697 { 698 ERR_print_errors(bio_err); 699 goto end; 700 } 701 702 #ifndef OPENSSL_NO_ENGINE 703 if (ssl_client_engine) 704 { 705 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) 706 { 707 BIO_puts(bio_err, "Error setting client auth engine\n"); 708 ERR_print_errors(bio_err); 709 ENGINE_free(ssl_client_engine); 710 goto end; 711 } 712 ENGINE_free(ssl_client_engine); 713 } 714 #endif 715 716 if (bugs) 717 SSL_CTX_set_options(ctx,SSL_OP_ALL|off); 718 else 719 SSL_CTX_set_options(ctx,off); 720 721 if (clr) 722 SSL_CTX_clear_options(ctx, clr); 723 /* DTLS: partial reads end up discarding unread UDP bytes :-( 724 * Setting read ahead solves this problem. 725 */ 726 if (sock_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1); 727 728 if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback); 729 if (cipher != NULL) 730 if(!SSL_CTX_set_cipher_list(ctx,cipher)) { 731 BIO_printf(bio_err,"error setting cipher list\n"); 732 ERR_print_errors(bio_err); 733 goto end; 734 } 735 #if 0 736 else 737 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER")); 738 #endif 739 740 SSL_CTX_set_verify(ctx,verify,verify_callback); 741 if (!set_cert_key_stuff(ctx,cert,key)) 742 goto end; 743 744 if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) || 745 (!SSL_CTX_set_default_verify_paths(ctx))) 746 { 747 /* BIO_printf(bio_err,"error setting default verify locations\n"); */ 748 ERR_print_errors(bio_err); 749 /* goto end; */ 750 } 751 752 store = SSL_CTX_get_cert_store(ctx); 753 X509_STORE_set_flags(store, vflags); 754 #ifndef OPENSSL_NO_TLSEXT 755 if (servername != NULL) 756 { 757 tlsextcbp.biodebug = bio_err; 758 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); 759 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); 760 } 761 #endif 762 763 con=SSL_new(ctx); 764 if (sess_in) 765 { 766 SSL_SESSION *sess; 767 BIO *stmp = BIO_new_file(sess_in, "r"); 768 if (!stmp) 769 { 770 BIO_printf(bio_err, "Can't open session file %s\n", 771 sess_in); 772 ERR_print_errors(bio_err); 773 goto end; 774 } 775 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL); 776 BIO_free(stmp); 777 if (!sess) 778 { 779 BIO_printf(bio_err, "Can't open session file %s\n", 780 sess_in); 781 ERR_print_errors(bio_err); 782 goto end; 783 } 784 SSL_set_session(con, sess); 785 SSL_SESSION_free(sess); 786 } 787 #ifndef OPENSSL_NO_TLSEXT 788 if (servername != NULL) 789 { 790 if (!SSL_set_tlsext_host_name(con,servername)) 791 { 792 BIO_printf(bio_err,"Unable to set TLS servername extension.\n"); 793 ERR_print_errors(bio_err); 794 goto end; 795 } 796 } 797 #endif 798 799 #ifndef OPENSSL_NO_KRB5 800 if (con && (con->kssl_ctx = kssl_ctx_new()) != NULL) 801 { 802 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host); 803 } 804 #endif /* OPENSSL_NO_KRB5 */ 805 /* SSL_set_cipher_list(con,"RC4-MD5"); */ 806 807 re_start: 808 809 if (init_client(&s,host,port,sock_type) == 0) 810 { 811 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error()); 812 SHUTDOWN(s); 813 goto end; 814 } 815 BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s); 816 817 #ifdef FIONBIO 818 if (c_nbio) 819 { 820 unsigned long l=1; 821 BIO_printf(bio_c_out,"turning on non blocking io\n"); 822 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0) 823 { 824 ERR_print_errors(bio_err); 825 goto end; 826 } 827 } 828 #endif 829 if (c_Pause & 0x01) con->debug=1; 830 831 if ( SSL_version(con) == DTLS1_VERSION) 832 { 833 834 sbio=BIO_new_dgram(s,BIO_NOCLOSE); 835 if (getsockname(s, &peer, (void *)&peerlen) < 0) 836 { 837 BIO_printf(bio_err, "getsockname:errno=%d\n", 838 get_last_socket_error()); 839 SHUTDOWN(s); 840 goto end; 841 } 842 843 (void)BIO_ctrl_set_connected(sbio, 1, &peer); 844 845 if ( enable_timeouts) 846 { 847 timeout.tv_sec = 0; 848 timeout.tv_usec = DGRAM_RCV_TIMEOUT; 849 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); 850 851 timeout.tv_sec = 0; 852 timeout.tv_usec = DGRAM_SND_TIMEOUT; 853 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); 854 } 855 856 if (socket_mtu > 28) 857 { 858 SSL_set_options(con, SSL_OP_NO_QUERY_MTU); 859 SSL_set_mtu(con, socket_mtu - 28); 860 } 861 else 862 /* want to do MTU discovery */ 863 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); 864 } 865 else 866 sbio=BIO_new_socket(s,BIO_NOCLOSE); 867 868 if (nbio_test) 869 { 870 BIO *test; 871 872 test=BIO_new(BIO_f_nbio_test()); 873 sbio=BIO_push(test,sbio); 874 } 875 876 if (c_debug) 877 { 878 con->debug=1; 879 BIO_set_callback(sbio,bio_dump_callback); 880 BIO_set_callback_arg(sbio,(char *)bio_c_out); 881 } 882 if (c_msg) 883 { 884 SSL_set_msg_callback(con, msg_cb); 885 SSL_set_msg_callback_arg(con, bio_c_out); 886 } 887 #ifndef OPENSSL_NO_TLSEXT 888 if (c_tlsextdebug) 889 { 890 SSL_set_tlsext_debug_callback(con, tlsext_cb); 891 SSL_set_tlsext_debug_arg(con, bio_c_out); 892 } 893 if (c_status_req) 894 { 895 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp); 896 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb); 897 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out); 898 #if 0 899 { 900 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null(); 901 OCSP_RESPID *id = OCSP_RESPID_new(); 902 id->value.byKey = ASN1_OCTET_STRING_new(); 903 id->type = V_OCSP_RESPID_KEY; 904 ASN1_STRING_set(id->value.byKey, "Hello World", -1); 905 sk_OCSP_RESPID_push(ids, id); 906 SSL_set_tlsext_status_ids(con, ids); 907 } 908 #endif 909 } 910 #endif 911 #ifndef OPENSSL_NO_JPAKE 912 if (jpake_secret) 913 jpake_client_auth(bio_c_out, sbio, jpake_secret); 914 #endif 915 916 SSL_set_bio(con,sbio,sbio); 917 SSL_set_connect_state(con); 918 919 /* ok, lets connect */ 920 width=SSL_get_fd(con)+1; 921 922 read_tty=1; 923 write_tty=0; 924 tty_on=0; 925 read_ssl=1; 926 write_ssl=1; 927 928 cbuf_len=0; 929 cbuf_off=0; 930 sbuf_len=0; 931 sbuf_off=0; 932 933 /* This is an ugly hack that does a lot of assumptions */ 934 /* We do have to handle multi-line responses which may come 935 in a single packet or not. We therefore have to use 936 BIO_gets() which does need a buffering BIO. So during 937 the initial chitchat we do push a buffering BIO into the 938 chain that is removed again later on to not disturb the 939 rest of the s_client operation. */ 940 if (starttls_proto == PROTO_SMTP) 941 { 942 int foundit=0; 943 BIO *fbio = BIO_new(BIO_f_buffer()); 944 BIO_push(fbio, sbio); 945 /* wait for multi-line response to end from SMTP */ 946 do 947 { 948 mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ); 949 } 950 while (mbuf_len>3 && mbuf[3]=='-'); 951 /* STARTTLS command requires EHLO... */ 952 BIO_printf(fbio,"EHLO openssl.client.net\r\n"); 953 (void)BIO_flush(fbio); 954 /* wait for multi-line response to end EHLO SMTP response */ 955 do 956 { 957 mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ); 958 if (strstr(mbuf,"STARTTLS")) 959 foundit=1; 960 } 961 while (mbuf_len>3 && mbuf[3]=='-'); 962 (void)BIO_flush(fbio); 963 BIO_pop(fbio); 964 BIO_free(fbio); 965 if (!foundit) 966 BIO_printf(bio_err, 967 "didn't found starttls in server response," 968 " try anyway...\n"); 969 BIO_printf(sbio,"STARTTLS\r\n"); 970 BIO_read(sbio,sbuf,BUFSIZZ); 971 } 972 else if (starttls_proto == PROTO_POP3) 973 { 974 BIO_read(sbio,mbuf,BUFSIZZ); 975 BIO_printf(sbio,"STLS\r\n"); 976 BIO_read(sbio,sbuf,BUFSIZZ); 977 } 978 else if (starttls_proto == PROTO_IMAP) 979 { 980 int foundit=0; 981 BIO *fbio = BIO_new(BIO_f_buffer()); 982 BIO_push(fbio, sbio); 983 BIO_gets(fbio,mbuf,BUFSIZZ); 984 /* STARTTLS command requires CAPABILITY... */ 985 BIO_printf(fbio,". CAPABILITY\r\n"); 986 (void)BIO_flush(fbio); 987 /* wait for multi-line CAPABILITY response */ 988 do 989 { 990 mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ); 991 if (strstr(mbuf,"STARTTLS")) 992 foundit=1; 993 } 994 while (mbuf_len>3 && mbuf[0]!='.'); 995 (void)BIO_flush(fbio); 996 BIO_pop(fbio); 997 BIO_free(fbio); 998 if (!foundit) 999 BIO_printf(bio_err, 1000 "didn't found STARTTLS in server response," 1001 " try anyway...\n"); 1002 BIO_printf(sbio,". STARTTLS\r\n"); 1003 BIO_read(sbio,sbuf,BUFSIZZ); 1004 } 1005 else if (starttls_proto == PROTO_FTP) 1006 { 1007 BIO *fbio = BIO_new(BIO_f_buffer()); 1008 BIO_push(fbio, sbio); 1009 /* wait for multi-line response to end from FTP */ 1010 do 1011 { 1012 mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ); 1013 } 1014 while (mbuf_len>3 && mbuf[3]=='-'); 1015 (void)BIO_flush(fbio); 1016 BIO_pop(fbio); 1017 BIO_free(fbio); 1018 BIO_printf(sbio,"AUTH TLS\r\n"); 1019 BIO_read(sbio,sbuf,BUFSIZZ); 1020 } 1021 if (starttls_proto == PROTO_XMPP) 1022 { 1023 int seen = 0; 1024 BIO_printf(sbio,"<stream:stream " 1025 "xmlns:stream='http://etherx.jabber.org/streams' " 1026 "xmlns='jabber:client' to='%s' version='1.0'>", host); 1027 seen = BIO_read(sbio,mbuf,BUFSIZZ); 1028 mbuf[seen] = 0; 1029 while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")) 1030 { 1031 if (strstr(mbuf, "/stream:features>")) 1032 goto shut; 1033 seen = BIO_read(sbio,mbuf,BUFSIZZ); 1034 mbuf[seen] = 0; 1035 } 1036 BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>"); 1037 seen = BIO_read(sbio,sbuf,BUFSIZZ); 1038 sbuf[seen] = 0; 1039 if (!strstr(sbuf, "<proceed")) 1040 goto shut; 1041 mbuf[0] = 0; 1042 } 1043 1044 for (;;) 1045 { 1046 FD_ZERO(&readfds); 1047 FD_ZERO(&writefds); 1048 1049 if ((SSL_version(con) == DTLS1_VERSION) && 1050 DTLSv1_get_timeout(con, &timeout)) 1051 timeoutp = &timeout; 1052 else 1053 timeoutp = NULL; 1054 1055 if (SSL_in_init(con) && !SSL_total_renegotiations(con)) 1056 { 1057 in_init=1; 1058 tty_on=0; 1059 } 1060 else 1061 { 1062 tty_on=1; 1063 if (in_init) 1064 { 1065 in_init=0; 1066 if (sess_out) 1067 { 1068 BIO *stmp = BIO_new_file(sess_out, "w"); 1069 if (stmp) 1070 { 1071 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con)); 1072 BIO_free(stmp); 1073 } 1074 else 1075 BIO_printf(bio_err, "Error writing session file %s\n", sess_out); 1076 } 1077 print_stuff(bio_c_out,con,full_log); 1078 if (full_log > 0) full_log--; 1079 1080 if (starttls_proto) 1081 { 1082 BIO_printf(bio_err,"%s",mbuf); 1083 /* We don't need to know any more */ 1084 starttls_proto = PROTO_OFF; 1085 } 1086 1087 if (reconnect) 1088 { 1089 reconnect--; 1090 BIO_printf(bio_c_out,"drop connection and then reconnect\n"); 1091 SSL_shutdown(con); 1092 SSL_set_connect_state(con); 1093 SHUTDOWN(SSL_get_fd(con)); 1094 goto re_start; 1095 } 1096 } 1097 } 1098 1099 ssl_pending = read_ssl && SSL_pending(con); 1100 1101 if (!ssl_pending) 1102 { 1103 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) 1104 if (tty_on) 1105 { 1106 if (read_tty) FD_SET(fileno(stdin),&readfds); 1107 if (write_tty) FD_SET(fileno(stdout),&writefds); 1108 } 1109 if (read_ssl) 1110 FD_SET(SSL_get_fd(con),&readfds); 1111 if (write_ssl) 1112 FD_SET(SSL_get_fd(con),&writefds); 1113 #else 1114 if(!tty_on || !write_tty) { 1115 if (read_ssl) 1116 FD_SET(SSL_get_fd(con),&readfds); 1117 if (write_ssl) 1118 FD_SET(SSL_get_fd(con),&writefds); 1119 } 1120 #endif 1121 /* printf("mode tty(%d %d%d) ssl(%d%d)\n", 1122 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/ 1123 1124 /* Note: under VMS with SOCKETSHR the second parameter 1125 * is currently of type (int *) whereas under other 1126 * systems it is (void *) if you don't have a cast it 1127 * will choke the compiler: if you do have a cast then 1128 * you can either go for (int *) or (void *). 1129 */ 1130 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 1131 /* Under Windows/DOS we make the assumption that we can 1132 * always write to the tty: therefore if we need to 1133 * write to the tty we just fall through. Otherwise 1134 * we timeout the select every second and see if there 1135 * are any keypresses. Note: this is a hack, in a proper 1136 * Windows application we wouldn't do this. 1137 */ 1138 i=0; 1139 if(!write_tty) { 1140 if(read_tty) { 1141 tv.tv_sec = 1; 1142 tv.tv_usec = 0; 1143 i=select(width,(void *)&readfds,(void *)&writefds, 1144 NULL,&tv); 1145 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS) 1146 if(!i && (!_kbhit() || !read_tty) ) continue; 1147 #else 1148 if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue; 1149 #endif 1150 } else i=select(width,(void *)&readfds,(void *)&writefds, 1151 NULL,timeoutp); 1152 } 1153 #elif defined(OPENSSL_SYS_NETWARE) 1154 if(!write_tty) { 1155 if(read_tty) { 1156 tv.tv_sec = 1; 1157 tv.tv_usec = 0; 1158 i=select(width,(void *)&readfds,(void *)&writefds, 1159 NULL,&tv); 1160 } else i=select(width,(void *)&readfds,(void *)&writefds, 1161 NULL,timeoutp); 1162 } 1163 #else 1164 i=select(width,(void *)&readfds,(void *)&writefds, 1165 NULL,timeoutp); 1166 #endif 1167 if ( i < 0) 1168 { 1169 BIO_printf(bio_err,"bad select %d\n", 1170 get_last_socket_error()); 1171 goto shut; 1172 /* goto end; */ 1173 } 1174 } 1175 1176 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0) 1177 { 1178 BIO_printf(bio_err,"TIMEOUT occured\n"); 1179 } 1180 1181 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds)) 1182 { 1183 k=SSL_write(con,&(cbuf[cbuf_off]), 1184 (unsigned int)cbuf_len); 1185 switch (SSL_get_error(con,k)) 1186 { 1187 case SSL_ERROR_NONE: 1188 cbuf_off+=k; 1189 cbuf_len-=k; 1190 if (k <= 0) goto end; 1191 /* we have done a write(con,NULL,0); */ 1192 if (cbuf_len <= 0) 1193 { 1194 read_tty=1; 1195 write_ssl=0; 1196 } 1197 else /* if (cbuf_len > 0) */ 1198 { 1199 read_tty=0; 1200 write_ssl=1; 1201 } 1202 break; 1203 case SSL_ERROR_WANT_WRITE: 1204 BIO_printf(bio_c_out,"write W BLOCK\n"); 1205 write_ssl=1; 1206 read_tty=0; 1207 break; 1208 case SSL_ERROR_WANT_READ: 1209 BIO_printf(bio_c_out,"write R BLOCK\n"); 1210 write_tty=0; 1211 read_ssl=1; 1212 write_ssl=0; 1213 break; 1214 case SSL_ERROR_WANT_X509_LOOKUP: 1215 BIO_printf(bio_c_out,"write X BLOCK\n"); 1216 break; 1217 case SSL_ERROR_ZERO_RETURN: 1218 if (cbuf_len != 0) 1219 { 1220 BIO_printf(bio_c_out,"shutdown\n"); 1221 goto shut; 1222 } 1223 else 1224 { 1225 read_tty=1; 1226 write_ssl=0; 1227 break; 1228 } 1229 1230 case SSL_ERROR_SYSCALL: 1231 if ((k != 0) || (cbuf_len != 0)) 1232 { 1233 BIO_printf(bio_err,"write:errno=%d\n", 1234 get_last_socket_error()); 1235 goto shut; 1236 } 1237 else 1238 { 1239 read_tty=1; 1240 write_ssl=0; 1241 } 1242 break; 1243 case SSL_ERROR_SSL: 1244 ERR_print_errors(bio_err); 1245 goto shut; 1246 } 1247 } 1248 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) 1249 /* Assume Windows/DOS can always write */ 1250 else if (!ssl_pending && write_tty) 1251 #else 1252 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds)) 1253 #endif 1254 { 1255 #ifdef CHARSET_EBCDIC 1256 ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len); 1257 #endif 1258 i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len); 1259 1260 if (i <= 0) 1261 { 1262 BIO_printf(bio_c_out,"DONE\n"); 1263 goto shut; 1264 /* goto end; */ 1265 } 1266 1267 sbuf_len-=i;; 1268 sbuf_off+=i; 1269 if (sbuf_len <= 0) 1270 { 1271 read_ssl=1; 1272 write_tty=0; 1273 } 1274 } 1275 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds)) 1276 { 1277 #ifdef RENEG 1278 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } } 1279 #endif 1280 #if 1 1281 k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ ); 1282 #else 1283 /* Demo for pending and peek :-) */ 1284 k=SSL_read(con,sbuf,16); 1285 { char zbuf[10240]; 1286 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240)); 1287 } 1288 #endif 1289 1290 switch (SSL_get_error(con,k)) 1291 { 1292 case SSL_ERROR_NONE: 1293 if (k <= 0) 1294 goto end; 1295 sbuf_off=0; 1296 sbuf_len=k; 1297 1298 read_ssl=0; 1299 write_tty=1; 1300 break; 1301 case SSL_ERROR_WANT_WRITE: 1302 BIO_printf(bio_c_out,"read W BLOCK\n"); 1303 write_ssl=1; 1304 read_tty=0; 1305 break; 1306 case SSL_ERROR_WANT_READ: 1307 BIO_printf(bio_c_out,"read R BLOCK\n"); 1308 write_tty=0; 1309 read_ssl=1; 1310 if ((read_tty == 0) && (write_ssl == 0)) 1311 write_ssl=1; 1312 break; 1313 case SSL_ERROR_WANT_X509_LOOKUP: 1314 BIO_printf(bio_c_out,"read X BLOCK\n"); 1315 break; 1316 case SSL_ERROR_SYSCALL: 1317 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error()); 1318 goto shut; 1319 case SSL_ERROR_ZERO_RETURN: 1320 BIO_printf(bio_c_out,"closed\n"); 1321 goto shut; 1322 case SSL_ERROR_SSL: 1323 ERR_print_errors(bio_err); 1324 goto shut; 1325 /* break; */ 1326 } 1327 } 1328 1329 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 1330 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS) 1331 else if (_kbhit()) 1332 #else 1333 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) 1334 #endif 1335 #elif defined (OPENSSL_SYS_NETWARE) 1336 else if (_kbhit()) 1337 #else 1338 else if (FD_ISSET(fileno(stdin),&readfds)) 1339 #endif 1340 { 1341 if (crlf) 1342 { 1343 int j, lf_num; 1344 1345 i=read(fileno(stdin),cbuf,BUFSIZZ/2); 1346 lf_num = 0; 1347 /* both loops are skipped when i <= 0 */ 1348 for (j = 0; j < i; j++) 1349 if (cbuf[j] == '\n') 1350 lf_num++; 1351 for (j = i-1; j >= 0; j--) 1352 { 1353 cbuf[j+lf_num] = cbuf[j]; 1354 if (cbuf[j] == '\n') 1355 { 1356 lf_num--; 1357 i++; 1358 cbuf[j+lf_num] = '\r'; 1359 } 1360 } 1361 assert(lf_num == 0); 1362 } 1363 else 1364 i=read(fileno(stdin),cbuf,BUFSIZZ); 1365 1366 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q'))) 1367 { 1368 BIO_printf(bio_err,"DONE\n"); 1369 goto shut; 1370 } 1371 1372 if ((!c_ign_eof) && (cbuf[0] == 'R')) 1373 { 1374 BIO_printf(bio_err,"RENEGOTIATING\n"); 1375 SSL_renegotiate(con); 1376 cbuf_len=0; 1377 } 1378 else 1379 { 1380 cbuf_len=i; 1381 cbuf_off=0; 1382 #ifdef CHARSET_EBCDIC 1383 ebcdic2ascii(cbuf, cbuf, i); 1384 #endif 1385 } 1386 1387 write_ssl=1; 1388 read_tty=0; 1389 } 1390 } 1391 shut: 1392 SSL_shutdown(con); 1393 SHUTDOWN(SSL_get_fd(con)); 1394 ret=0; 1395 end: 1396 if(prexit) print_stuff(bio_c_out,con,1); 1397 if (con != NULL) SSL_free(con); 1398 if (con2 != NULL) SSL_free(con2); 1399 if (ctx != NULL) SSL_CTX_free(ctx); 1400 if (cert) 1401 X509_free(cert); 1402 if (key) 1403 EVP_PKEY_free(key); 1404 if (pass) 1405 OPENSSL_free(pass); 1406 if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); } 1407 if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); } 1408 if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); } 1409 if (bio_c_out != NULL) 1410 { 1411 BIO_free(bio_c_out); 1412 bio_c_out=NULL; 1413 } 1414 apps_shutdown(); 1415 OPENSSL_EXIT(ret); 1416 } 1417 1418 1419 static void print_stuff(BIO *bio, SSL *s, int full) 1420 { 1421 X509 *peer=NULL; 1422 char *p; 1423 static const char *space=" "; 1424 char buf[BUFSIZ]; 1425 STACK_OF(X509) *sk; 1426 STACK_OF(X509_NAME) *sk2; 1427 SSL_CIPHER *c; 1428 X509_NAME *xn; 1429 int j,i; 1430 #ifndef OPENSSL_NO_COMP 1431 const COMP_METHOD *comp, *expansion; 1432 #endif 1433 1434 if (full) 1435 { 1436 int got_a_chain = 0; 1437 1438 sk=SSL_get_peer_cert_chain(s); 1439 if (sk != NULL) 1440 { 1441 got_a_chain = 1; /* we don't have it for SSL2 (yet) */ 1442 1443 BIO_printf(bio,"---\nCertificate chain\n"); 1444 for (i=0; i<sk_X509_num(sk); i++) 1445 { 1446 X509_NAME_oneline(X509_get_subject_name( 1447 sk_X509_value(sk,i)),buf,sizeof buf); 1448 BIO_printf(bio,"%2d s:%s\n",i,buf); 1449 X509_NAME_oneline(X509_get_issuer_name( 1450 sk_X509_value(sk,i)),buf,sizeof buf); 1451 BIO_printf(bio," i:%s\n",buf); 1452 if (c_showcerts) 1453 PEM_write_bio_X509(bio,sk_X509_value(sk,i)); 1454 } 1455 } 1456 1457 BIO_printf(bio,"---\n"); 1458 peer=SSL_get_peer_certificate(s); 1459 if (peer != NULL) 1460 { 1461 BIO_printf(bio,"Server certificate\n"); 1462 if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */ 1463 PEM_write_bio_X509(bio,peer); 1464 X509_NAME_oneline(X509_get_subject_name(peer), 1465 buf,sizeof buf); 1466 BIO_printf(bio,"subject=%s\n",buf); 1467 X509_NAME_oneline(X509_get_issuer_name(peer), 1468 buf,sizeof buf); 1469 BIO_printf(bio,"issuer=%s\n",buf); 1470 } 1471 else 1472 BIO_printf(bio,"no peer certificate available\n"); 1473 1474 sk2=SSL_get_client_CA_list(s); 1475 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0)) 1476 { 1477 BIO_printf(bio,"---\nAcceptable client certificate CA names\n"); 1478 for (i=0; i<sk_X509_NAME_num(sk2); i++) 1479 { 1480 xn=sk_X509_NAME_value(sk2,i); 1481 X509_NAME_oneline(xn,buf,sizeof(buf)); 1482 BIO_write(bio,buf,strlen(buf)); 1483 BIO_write(bio,"\n",1); 1484 } 1485 } 1486 else 1487 { 1488 BIO_printf(bio,"---\nNo client certificate CA names sent\n"); 1489 } 1490 p=SSL_get_shared_ciphers(s,buf,sizeof buf); 1491 if (p != NULL) 1492 { 1493 /* This works only for SSL 2. In later protocol 1494 * versions, the client does not know what other 1495 * ciphers (in addition to the one to be used 1496 * in the current connection) the server supports. */ 1497 1498 BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n"); 1499 j=i=0; 1500 while (*p) 1501 { 1502 if (*p == ':') 1503 { 1504 BIO_write(bio,space,15-j%25); 1505 i++; 1506 j=0; 1507 BIO_write(bio,((i%3)?" ":"\n"),1); 1508 } 1509 else 1510 { 1511 BIO_write(bio,p,1); 1512 j++; 1513 } 1514 p++; 1515 } 1516 BIO_write(bio,"\n",1); 1517 } 1518 1519 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n", 1520 BIO_number_read(SSL_get_rbio(s)), 1521 BIO_number_written(SSL_get_wbio(s))); 1522 } 1523 BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, ")); 1524 c=SSL_get_current_cipher(s); 1525 BIO_printf(bio,"%s, Cipher is %s\n", 1526 SSL_CIPHER_get_version(c), 1527 SSL_CIPHER_get_name(c)); 1528 if (peer != NULL) { 1529 EVP_PKEY *pktmp; 1530 pktmp = X509_get_pubkey(peer); 1531 BIO_printf(bio,"Server public key is %d bit\n", 1532 EVP_PKEY_bits(pktmp)); 1533 EVP_PKEY_free(pktmp); 1534 } 1535 BIO_printf(bio, "Secure Renegotiation IS%s supported\n", 1536 SSL_get_secure_renegotiation_support(s) ? "" : " NOT"); 1537 #ifndef OPENSSL_NO_COMP 1538 comp=SSL_get_current_compression(s); 1539 expansion=SSL_get_current_expansion(s); 1540 BIO_printf(bio,"Compression: %s\n", 1541 comp ? SSL_COMP_get_name(comp) : "NONE"); 1542 BIO_printf(bio,"Expansion: %s\n", 1543 expansion ? SSL_COMP_get_name(expansion) : "NONE"); 1544 #endif 1545 SSL_SESSION_print(bio,SSL_get_session(s)); 1546 BIO_printf(bio,"---\n"); 1547 if (peer != NULL) 1548 X509_free(peer); 1549 /* flush, or debugging output gets mixed with http response */ 1550 (void)BIO_flush(bio); 1551 } 1552 1553 #ifndef OPENSSL_NO_TLSEXT 1554 1555 static int ocsp_resp_cb(SSL *s, void *arg) 1556 { 1557 const unsigned char *p; 1558 int len; 1559 OCSP_RESPONSE *rsp; 1560 len = SSL_get_tlsext_status_ocsp_resp(s, &p); 1561 BIO_puts(arg, "OCSP response: "); 1562 if (!p) 1563 { 1564 BIO_puts(arg, "no response sent\n"); 1565 return 1; 1566 } 1567 rsp = d2i_OCSP_RESPONSE(NULL, &p, len); 1568 if (!rsp) 1569 { 1570 BIO_puts(arg, "response parse error\n"); 1571 BIO_dump_indent(arg, (char *)p, len, 4); 1572 return 0; 1573 } 1574 BIO_puts(arg, "\n======================================\n"); 1575 OCSP_RESPONSE_print(arg, rsp, 0); 1576 BIO_puts(arg, "======================================\n"); 1577 OCSP_RESPONSE_free(rsp); 1578 return 1; 1579 } 1580 #endif /* ndef OPENSSL_NO_TLSEXT */ 1581