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 "s_apps.h" 138 139 #ifdef OPENSSL_SYS_WINCE 140 /* Windows CE incorrectly defines fileno as returning void*, so to avoid problems below... */ 141 #ifdef fileno 142 #undef fileno 143 #endif 144 #define fileno(a) (int)_fileno(a) 145 #endif 146 147 148 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000) 149 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */ 150 #undef FIONBIO 151 #endif 152 153 #undef PROG 154 #define PROG s_client_main 155 156 /*#define SSL_HOST_NAME "www.netscape.com" */ 157 /*#define SSL_HOST_NAME "193.118.187.102" */ 158 #define SSL_HOST_NAME "localhost" 159 160 /*#define TEST_CERT "client.pem" */ /* no default cert. */ 161 162 #undef BUFSIZZ 163 #define BUFSIZZ 1024*8 164 165 extern int verify_depth; 166 extern int verify_error; 167 168 #ifdef FIONBIO 169 static int c_nbio=0; 170 #endif 171 static int c_Pause=0; 172 static int c_debug=0; 173 static int c_msg=0; 174 static int c_showcerts=0; 175 176 static void sc_usage(void); 177 static void print_stuff(BIO *berr,SSL *con,int full); 178 static BIO *bio_c_out=NULL; 179 static int c_quiet=0; 180 static int c_ign_eof=0; 181 182 static void sc_usage(void) 183 { 184 BIO_printf(bio_err,"usage: s_client args\n"); 185 BIO_printf(bio_err,"\n"); 186 BIO_printf(bio_err," -host host - use -connect instead\n"); 187 BIO_printf(bio_err," -port port - use -connect instead\n"); 188 BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR); 189 190 BIO_printf(bio_err," -verify arg - turn on peer certificate verification\n"); 191 BIO_printf(bio_err," -cert arg - certificate file to use, PEM format assumed\n"); 192 BIO_printf(bio_err," -key arg - Private key file to use, PEM format assumed, in cert file if\n"); 193 BIO_printf(bio_err," not specified but cert file is.\n"); 194 BIO_printf(bio_err," -CApath arg - PEM format directory of CA's\n"); 195 BIO_printf(bio_err," -CAfile arg - PEM format file of CA's\n"); 196 BIO_printf(bio_err," -reconnect - Drop and re-make the connection with the same Session-ID\n"); 197 BIO_printf(bio_err," -pause - sleep(1) after each read(2) and write(2) system call\n"); 198 BIO_printf(bio_err," -showcerts - show all certificates in the chain\n"); 199 BIO_printf(bio_err," -debug - extra output\n"); 200 BIO_printf(bio_err," -msg - Show protocol messages\n"); 201 BIO_printf(bio_err," -nbio_test - more ssl protocol testing\n"); 202 BIO_printf(bio_err," -state - print the 'ssl' states\n"); 203 #ifdef FIONBIO 204 BIO_printf(bio_err," -nbio - Run with non-blocking IO\n"); 205 #endif 206 BIO_printf(bio_err," -crlf - convert LF from terminal into CRLF\n"); 207 BIO_printf(bio_err," -quiet - no s_client output\n"); 208 BIO_printf(bio_err," -ign_eof - ignore input eof (default when -quiet)\n"); 209 BIO_printf(bio_err," -ssl2 - just use SSLv2\n"); 210 BIO_printf(bio_err," -ssl3 - just use SSLv3\n"); 211 BIO_printf(bio_err," -tls1 - just use TLSv1\n"); 212 BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n"); 213 BIO_printf(bio_err," -bugs - Switch on all SSL implementation bug workarounds\n"); 214 BIO_printf(bio_err," -serverpref - Use server's cipher preferences (only SSLv2)\n"); 215 BIO_printf(bio_err," -cipher - preferred cipher to use, use the 'openssl ciphers'\n"); 216 BIO_printf(bio_err," command to see what is available\n"); 217 BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n"); 218 BIO_printf(bio_err," for those protocols that support it, where\n"); 219 BIO_printf(bio_err," 'prot' defines which one to assume. Currently,\n"); 220 BIO_printf(bio_err," only \"smtp\" and \"pop3\" are supported.\n"); 221 #ifndef OPENSSL_NO_ENGINE 222 BIO_printf(bio_err," -engine id - Initialise and use the specified engine\n"); 223 #endif 224 BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR); 225 226 } 227 228 int MAIN(int, char **); 229 230 int MAIN(int argc, char **argv) 231 { 232 int off=0; 233 SSL *con=NULL,*con2=NULL; 234 X509_STORE *store = NULL; 235 int s,k,width,state=0; 236 char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL; 237 int cbuf_len,cbuf_off; 238 int sbuf_len,sbuf_off; 239 fd_set readfds,writefds; 240 short port=PORT; 241 int full_log=1; 242 char *host=SSL_HOST_NAME; 243 char *cert_file=NULL,*key_file=NULL; 244 char *CApath=NULL,*CAfile=NULL,*cipher=NULL; 245 int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0; 246 int crlf=0; 247 int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending; 248 SSL_CTX *ctx=NULL; 249 int ret=1,in_init=1,i,nbio_test=0; 250 int starttls_proto = 0; 251 int prexit = 0, vflags = 0; 252 SSL_METHOD *meth=NULL; 253 BIO *sbio; 254 char *inrand=NULL; 255 #ifndef OPENSSL_NO_ENGINE 256 char *engine_id=NULL; 257 ENGINE *e=NULL; 258 #endif 259 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 260 struct timeval tv; 261 #endif 262 263 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3) 264 meth=SSLv23_client_method(); 265 #elif !defined(OPENSSL_NO_SSL3) 266 meth=SSLv3_client_method(); 267 #elif !defined(OPENSSL_NO_SSL2) 268 meth=SSLv2_client_method(); 269 #endif 270 271 apps_startup(); 272 c_Pause=0; 273 c_quiet=0; 274 c_ign_eof=0; 275 c_debug=0; 276 c_msg=0; 277 c_showcerts=0; 278 279 if (bio_err == NULL) 280 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE); 281 282 if (!load_config(bio_err, NULL)) 283 goto end; 284 285 if ( ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) || 286 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) || 287 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL)) 288 { 289 BIO_printf(bio_err,"out of memory\n"); 290 goto end; 291 } 292 293 verify_depth=0; 294 verify_error=X509_V_OK; 295 #ifdef FIONBIO 296 c_nbio=0; 297 #endif 298 299 argc--; 300 argv++; 301 while (argc >= 1) 302 { 303 if (strcmp(*argv,"-host") == 0) 304 { 305 if (--argc < 1) goto bad; 306 host= *(++argv); 307 } 308 else if (strcmp(*argv,"-port") == 0) 309 { 310 if (--argc < 1) goto bad; 311 port=atoi(*(++argv)); 312 if (port == 0) goto bad; 313 } 314 else if (strcmp(*argv,"-connect") == 0) 315 { 316 if (--argc < 1) goto bad; 317 if (!extract_host_port(*(++argv),&host,NULL,&port)) 318 goto bad; 319 } 320 else if (strcmp(*argv,"-verify") == 0) 321 { 322 verify=SSL_VERIFY_PEER; 323 if (--argc < 1) goto bad; 324 verify_depth=atoi(*(++argv)); 325 BIO_printf(bio_err,"verify depth is %d\n",verify_depth); 326 } 327 else if (strcmp(*argv,"-cert") == 0) 328 { 329 if (--argc < 1) goto bad; 330 cert_file= *(++argv); 331 } 332 else if (strcmp(*argv,"-crl_check") == 0) 333 vflags |= X509_V_FLAG_CRL_CHECK; 334 else if (strcmp(*argv,"-crl_check_all") == 0) 335 vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL; 336 else if (strcmp(*argv,"-prexit") == 0) 337 prexit=1; 338 else if (strcmp(*argv,"-crlf") == 0) 339 crlf=1; 340 else if (strcmp(*argv,"-quiet") == 0) 341 { 342 c_quiet=1; 343 c_ign_eof=1; 344 } 345 else if (strcmp(*argv,"-ign_eof") == 0) 346 c_ign_eof=1; 347 else if (strcmp(*argv,"-pause") == 0) 348 c_Pause=1; 349 else if (strcmp(*argv,"-debug") == 0) 350 c_debug=1; 351 else if (strcmp(*argv,"-msg") == 0) 352 c_msg=1; 353 else if (strcmp(*argv,"-showcerts") == 0) 354 c_showcerts=1; 355 else if (strcmp(*argv,"-nbio_test") == 0) 356 nbio_test=1; 357 else if (strcmp(*argv,"-state") == 0) 358 state=1; 359 #ifndef OPENSSL_NO_SSL2 360 else if (strcmp(*argv,"-ssl2") == 0) 361 meth=SSLv2_client_method(); 362 #endif 363 #ifndef OPENSSL_NO_SSL3 364 else if (strcmp(*argv,"-ssl3") == 0) 365 meth=SSLv3_client_method(); 366 #endif 367 #ifndef OPENSSL_NO_TLS1 368 else if (strcmp(*argv,"-tls1") == 0) 369 meth=TLSv1_client_method(); 370 #endif 371 else if (strcmp(*argv,"-bugs") == 0) 372 bugs=1; 373 else if (strcmp(*argv,"-key") == 0) 374 { 375 if (--argc < 1) goto bad; 376 key_file= *(++argv); 377 } 378 else if (strcmp(*argv,"-reconnect") == 0) 379 { 380 reconnect=5; 381 } 382 else if (strcmp(*argv,"-CApath") == 0) 383 { 384 if (--argc < 1) goto bad; 385 CApath= *(++argv); 386 } 387 else if (strcmp(*argv,"-CAfile") == 0) 388 { 389 if (--argc < 1) goto bad; 390 CAfile= *(++argv); 391 } 392 else if (strcmp(*argv,"-no_tls1") == 0) 393 off|=SSL_OP_NO_TLSv1; 394 else if (strcmp(*argv,"-no_ssl3") == 0) 395 off|=SSL_OP_NO_SSLv3; 396 else if (strcmp(*argv,"-no_ssl2") == 0) 397 off|=SSL_OP_NO_SSLv2; 398 else if (strcmp(*argv,"-serverpref") == 0) 399 off|=SSL_OP_CIPHER_SERVER_PREFERENCE; 400 else if (strcmp(*argv,"-cipher") == 0) 401 { 402 if (--argc < 1) goto bad; 403 cipher= *(++argv); 404 } 405 #ifdef FIONBIO 406 else if (strcmp(*argv,"-nbio") == 0) 407 { c_nbio=1; } 408 #endif 409 else if (strcmp(*argv,"-starttls") == 0) 410 { 411 if (--argc < 1) goto bad; 412 ++argv; 413 if (strcmp(*argv,"smtp") == 0) 414 starttls_proto = 1; 415 else if (strcmp(*argv,"pop3") == 0) 416 starttls_proto = 2; 417 else 418 goto bad; 419 } 420 #ifndef OPENSSL_NO_ENGINE 421 else if (strcmp(*argv,"-engine") == 0) 422 { 423 if (--argc < 1) goto bad; 424 engine_id = *(++argv); 425 } 426 #endif 427 else if (strcmp(*argv,"-rand") == 0) 428 { 429 if (--argc < 1) goto bad; 430 inrand= *(++argv); 431 } 432 else 433 { 434 BIO_printf(bio_err,"unknown option %s\n",*argv); 435 badop=1; 436 break; 437 } 438 argc--; 439 argv++; 440 } 441 if (badop) 442 { 443 bad: 444 sc_usage(); 445 goto end; 446 } 447 448 OpenSSL_add_ssl_algorithms(); 449 SSL_load_error_strings(); 450 451 #ifndef OPENSSL_NO_ENGINE 452 e = setup_engine(bio_err, engine_id, 1); 453 #endif 454 455 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL 456 && !RAND_status()) 457 { 458 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n"); 459 } 460 if (inrand != NULL) 461 BIO_printf(bio_err,"%ld semi-random bytes loaded\n", 462 app_RAND_load_files(inrand)); 463 464 if (bio_c_out == NULL) 465 { 466 if (c_quiet && !c_debug && !c_msg) 467 { 468 bio_c_out=BIO_new(BIO_s_null()); 469 } 470 else 471 { 472 if (bio_c_out == NULL) 473 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE); 474 } 475 } 476 477 ctx=SSL_CTX_new(meth); 478 if (ctx == NULL) 479 { 480 ERR_print_errors(bio_err); 481 goto end; 482 } 483 484 if (bugs) 485 SSL_CTX_set_options(ctx,SSL_OP_ALL|off); 486 else 487 SSL_CTX_set_options(ctx,off); 488 489 if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback); 490 if (cipher != NULL) 491 if(!SSL_CTX_set_cipher_list(ctx,cipher)) { 492 BIO_printf(bio_err,"error setting cipher list\n"); 493 ERR_print_errors(bio_err); 494 goto end; 495 } 496 #if 0 497 else 498 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER")); 499 #endif 500 501 SSL_CTX_set_verify(ctx,verify,verify_callback); 502 if (!set_cert_stuff(ctx,cert_file,key_file)) 503 goto end; 504 505 if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) || 506 (!SSL_CTX_set_default_verify_paths(ctx))) 507 { 508 /* BIO_printf(bio_err,"error setting default verify locations\n"); */ 509 ERR_print_errors(bio_err); 510 /* goto end; */ 511 } 512 513 store = SSL_CTX_get_cert_store(ctx); 514 X509_STORE_set_flags(store, vflags); 515 516 con=SSL_new(ctx); 517 #ifndef OPENSSL_NO_KRB5 518 if (con && (con->kssl_ctx = kssl_ctx_new()) != NULL) 519 { 520 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host); 521 } 522 #endif /* OPENSSL_NO_KRB5 */ 523 /* SSL_set_cipher_list(con,"RC4-MD5"); */ 524 525 re_start: 526 527 if (init_client(&s,host,port) == 0) 528 { 529 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error()); 530 SHUTDOWN(s); 531 goto end; 532 } 533 BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s); 534 535 #ifdef FIONBIO 536 if (c_nbio) 537 { 538 unsigned long l=1; 539 BIO_printf(bio_c_out,"turning on non blocking io\n"); 540 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0) 541 { 542 ERR_print_errors(bio_err); 543 goto end; 544 } 545 } 546 #endif 547 if (c_Pause & 0x01) con->debug=1; 548 sbio=BIO_new_socket(s,BIO_NOCLOSE); 549 550 if (nbio_test) 551 { 552 BIO *test; 553 554 test=BIO_new(BIO_f_nbio_test()); 555 sbio=BIO_push(test,sbio); 556 } 557 558 if (c_debug) 559 { 560 con->debug=1; 561 BIO_set_callback(sbio,bio_dump_cb); 562 BIO_set_callback_arg(sbio,bio_c_out); 563 } 564 if (c_msg) 565 { 566 SSL_set_msg_callback(con, msg_cb); 567 SSL_set_msg_callback_arg(con, bio_c_out); 568 } 569 570 SSL_set_bio(con,sbio,sbio); 571 SSL_set_connect_state(con); 572 573 /* ok, lets connect */ 574 width=SSL_get_fd(con)+1; 575 576 read_tty=1; 577 write_tty=0; 578 tty_on=0; 579 read_ssl=1; 580 write_ssl=1; 581 582 cbuf_len=0; 583 cbuf_off=0; 584 sbuf_len=0; 585 sbuf_off=0; 586 587 /* This is an ugly hack that does a lot of assumptions */ 588 if (starttls_proto == 1) 589 { 590 BIO_read(sbio,mbuf,BUFSIZZ); 591 BIO_printf(sbio,"STARTTLS\r\n"); 592 BIO_read(sbio,sbuf,BUFSIZZ); 593 } 594 if (starttls_proto == 2) 595 { 596 BIO_read(sbio,mbuf,BUFSIZZ); 597 BIO_printf(sbio,"STLS\r\n"); 598 BIO_read(sbio,sbuf,BUFSIZZ); 599 } 600 601 for (;;) 602 { 603 FD_ZERO(&readfds); 604 FD_ZERO(&writefds); 605 606 if (SSL_in_init(con) && !SSL_total_renegotiations(con)) 607 { 608 in_init=1; 609 tty_on=0; 610 } 611 else 612 { 613 tty_on=1; 614 if (in_init) 615 { 616 in_init=0; 617 print_stuff(bio_c_out,con,full_log); 618 if (full_log > 0) full_log--; 619 620 if (starttls_proto) 621 { 622 BIO_printf(bio_err,"%s",mbuf); 623 /* We don't need to know any more */ 624 starttls_proto = 0; 625 } 626 627 if (reconnect) 628 { 629 reconnect--; 630 BIO_printf(bio_c_out,"drop connection and then reconnect\n"); 631 SSL_shutdown(con); 632 SSL_set_connect_state(con); 633 SHUTDOWN(SSL_get_fd(con)); 634 goto re_start; 635 } 636 } 637 } 638 639 ssl_pending = read_ssl && SSL_pending(con); 640 641 if (!ssl_pending) 642 { 643 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) 644 if (tty_on) 645 { 646 if (read_tty) FD_SET(fileno(stdin),&readfds); 647 if (write_tty) FD_SET(fileno(stdout),&writefds); 648 } 649 if (read_ssl) 650 FD_SET(SSL_get_fd(con),&readfds); 651 if (write_ssl) 652 FD_SET(SSL_get_fd(con),&writefds); 653 #else 654 if(!tty_on || !write_tty) { 655 if (read_ssl) 656 FD_SET(SSL_get_fd(con),&readfds); 657 if (write_ssl) 658 FD_SET(SSL_get_fd(con),&writefds); 659 } 660 #endif 661 /* printf("mode tty(%d %d%d) ssl(%d%d)\n", 662 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/ 663 664 /* Note: under VMS with SOCKETSHR the second parameter 665 * is currently of type (int *) whereas under other 666 * systems it is (void *) if you don't have a cast it 667 * will choke the compiler: if you do have a cast then 668 * you can either go for (int *) or (void *). 669 */ 670 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 671 /* Under Windows/DOS we make the assumption that we can 672 * always write to the tty: therefore if we need to 673 * write to the tty we just fall through. Otherwise 674 * we timeout the select every second and see if there 675 * are any keypresses. Note: this is a hack, in a proper 676 * Windows application we wouldn't do this. 677 */ 678 i=0; 679 if(!write_tty) { 680 if(read_tty) { 681 tv.tv_sec = 1; 682 tv.tv_usec = 0; 683 i=select(width,(void *)&readfds,(void *)&writefds, 684 NULL,&tv); 685 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS) 686 if(!i && (!_kbhit() || !read_tty) ) continue; 687 #else 688 if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue; 689 #endif 690 } else i=select(width,(void *)&readfds,(void *)&writefds, 691 NULL,NULL); 692 } 693 #else 694 i=select(width,(void *)&readfds,(void *)&writefds, 695 NULL,NULL); 696 #endif 697 if ( i < 0) 698 { 699 BIO_printf(bio_err,"bad select %d\n", 700 get_last_socket_error()); 701 goto shut; 702 /* goto end; */ 703 } 704 } 705 706 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds)) 707 { 708 k=SSL_write(con,&(cbuf[cbuf_off]), 709 (unsigned int)cbuf_len); 710 switch (SSL_get_error(con,k)) 711 { 712 case SSL_ERROR_NONE: 713 cbuf_off+=k; 714 cbuf_len-=k; 715 if (k <= 0) goto end; 716 /* we have done a write(con,NULL,0); */ 717 if (cbuf_len <= 0) 718 { 719 read_tty=1; 720 write_ssl=0; 721 } 722 else /* if (cbuf_len > 0) */ 723 { 724 read_tty=0; 725 write_ssl=1; 726 } 727 break; 728 case SSL_ERROR_WANT_WRITE: 729 BIO_printf(bio_c_out,"write W BLOCK\n"); 730 write_ssl=1; 731 read_tty=0; 732 break; 733 case SSL_ERROR_WANT_READ: 734 BIO_printf(bio_c_out,"write R BLOCK\n"); 735 write_tty=0; 736 read_ssl=1; 737 write_ssl=0; 738 break; 739 case SSL_ERROR_WANT_X509_LOOKUP: 740 BIO_printf(bio_c_out,"write X BLOCK\n"); 741 break; 742 case SSL_ERROR_ZERO_RETURN: 743 if (cbuf_len != 0) 744 { 745 BIO_printf(bio_c_out,"shutdown\n"); 746 goto shut; 747 } 748 else 749 { 750 read_tty=1; 751 write_ssl=0; 752 break; 753 } 754 755 case SSL_ERROR_SYSCALL: 756 if ((k != 0) || (cbuf_len != 0)) 757 { 758 BIO_printf(bio_err,"write:errno=%d\n", 759 get_last_socket_error()); 760 goto shut; 761 } 762 else 763 { 764 read_tty=1; 765 write_ssl=0; 766 } 767 break; 768 case SSL_ERROR_SSL: 769 ERR_print_errors(bio_err); 770 goto shut; 771 } 772 } 773 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 774 /* Assume Windows/DOS can always write */ 775 else if (!ssl_pending && write_tty) 776 #else 777 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds)) 778 #endif 779 { 780 #ifdef CHARSET_EBCDIC 781 ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len); 782 #endif 783 i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len); 784 785 if (i <= 0) 786 { 787 BIO_printf(bio_c_out,"DONE\n"); 788 goto shut; 789 /* goto end; */ 790 } 791 792 sbuf_len-=i;; 793 sbuf_off+=i; 794 if (sbuf_len <= 0) 795 { 796 read_ssl=1; 797 write_tty=0; 798 } 799 } 800 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds)) 801 { 802 #ifdef RENEG 803 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } } 804 #endif 805 #if 1 806 k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ ); 807 #else 808 /* Demo for pending and peek :-) */ 809 k=SSL_read(con,sbuf,16); 810 { char zbuf[10240]; 811 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240)); 812 } 813 #endif 814 815 switch (SSL_get_error(con,k)) 816 { 817 case SSL_ERROR_NONE: 818 if (k <= 0) 819 goto end; 820 sbuf_off=0; 821 sbuf_len=k; 822 823 read_ssl=0; 824 write_tty=1; 825 break; 826 case SSL_ERROR_WANT_WRITE: 827 BIO_printf(bio_c_out,"read W BLOCK\n"); 828 write_ssl=1; 829 read_tty=0; 830 break; 831 case SSL_ERROR_WANT_READ: 832 BIO_printf(bio_c_out,"read R BLOCK\n"); 833 write_tty=0; 834 read_ssl=1; 835 if ((read_tty == 0) && (write_ssl == 0)) 836 write_ssl=1; 837 break; 838 case SSL_ERROR_WANT_X509_LOOKUP: 839 BIO_printf(bio_c_out,"read X BLOCK\n"); 840 break; 841 case SSL_ERROR_SYSCALL: 842 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error()); 843 goto shut; 844 case SSL_ERROR_ZERO_RETURN: 845 BIO_printf(bio_c_out,"closed\n"); 846 goto shut; 847 case SSL_ERROR_SSL: 848 ERR_print_errors(bio_err); 849 goto shut; 850 /* break; */ 851 } 852 } 853 854 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 855 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS) 856 else if (_kbhit()) 857 #else 858 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) 859 #endif 860 #else 861 else if (FD_ISSET(fileno(stdin),&readfds)) 862 #endif 863 { 864 if (crlf) 865 { 866 int j, lf_num; 867 868 i=read(fileno(stdin),cbuf,BUFSIZZ/2); 869 lf_num = 0; 870 /* both loops are skipped when i <= 0 */ 871 for (j = 0; j < i; j++) 872 if (cbuf[j] == '\n') 873 lf_num++; 874 for (j = i-1; j >= 0; j--) 875 { 876 cbuf[j+lf_num] = cbuf[j]; 877 if (cbuf[j] == '\n') 878 { 879 lf_num--; 880 i++; 881 cbuf[j+lf_num] = '\r'; 882 } 883 } 884 assert(lf_num == 0); 885 } 886 else 887 i=read(fileno(stdin),cbuf,BUFSIZZ); 888 889 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q'))) 890 { 891 BIO_printf(bio_err,"DONE\n"); 892 goto shut; 893 } 894 895 if ((!c_ign_eof) && (cbuf[0] == 'R')) 896 { 897 BIO_printf(bio_err,"RENEGOTIATING\n"); 898 SSL_renegotiate(con); 899 cbuf_len=0; 900 } 901 else 902 { 903 cbuf_len=i; 904 cbuf_off=0; 905 #ifdef CHARSET_EBCDIC 906 ebcdic2ascii(cbuf, cbuf, i); 907 #endif 908 } 909 910 write_ssl=1; 911 read_tty=0; 912 } 913 } 914 shut: 915 SSL_shutdown(con); 916 SHUTDOWN(SSL_get_fd(con)); 917 ret=0; 918 end: 919 if(prexit) print_stuff(bio_c_out,con,1); 920 if (con != NULL) SSL_free(con); 921 if (con2 != NULL) SSL_free(con2); 922 if (ctx != NULL) SSL_CTX_free(ctx); 923 if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); } 924 if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); } 925 if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); } 926 if (bio_c_out != NULL) 927 { 928 BIO_free(bio_c_out); 929 bio_c_out=NULL; 930 } 931 apps_shutdown(); 932 OPENSSL_EXIT(ret); 933 } 934 935 936 static void print_stuff(BIO *bio, SSL *s, int full) 937 { 938 X509 *peer=NULL; 939 char *p; 940 static char *space=" "; 941 char buf[BUFSIZ]; 942 STACK_OF(X509) *sk; 943 STACK_OF(X509_NAME) *sk2; 944 SSL_CIPHER *c; 945 X509_NAME *xn; 946 int j,i; 947 948 if (full) 949 { 950 int got_a_chain = 0; 951 952 sk=SSL_get_peer_cert_chain(s); 953 if (sk != NULL) 954 { 955 got_a_chain = 1; /* we don't have it for SSL2 (yet) */ 956 957 BIO_printf(bio,"---\nCertificate chain\n"); 958 for (i=0; i<sk_X509_num(sk); i++) 959 { 960 X509_NAME_oneline(X509_get_subject_name( 961 sk_X509_value(sk,i)),buf,sizeof buf); 962 BIO_printf(bio,"%2d s:%s\n",i,buf); 963 X509_NAME_oneline(X509_get_issuer_name( 964 sk_X509_value(sk,i)),buf,sizeof buf); 965 BIO_printf(bio," i:%s\n",buf); 966 if (c_showcerts) 967 PEM_write_bio_X509(bio,sk_X509_value(sk,i)); 968 } 969 } 970 971 BIO_printf(bio,"---\n"); 972 peer=SSL_get_peer_certificate(s); 973 if (peer != NULL) 974 { 975 BIO_printf(bio,"Server certificate\n"); 976 if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */ 977 PEM_write_bio_X509(bio,peer); 978 X509_NAME_oneline(X509_get_subject_name(peer), 979 buf,sizeof buf); 980 BIO_printf(bio,"subject=%s\n",buf); 981 X509_NAME_oneline(X509_get_issuer_name(peer), 982 buf,sizeof buf); 983 BIO_printf(bio,"issuer=%s\n",buf); 984 } 985 else 986 BIO_printf(bio,"no peer certificate available\n"); 987 988 sk2=SSL_get_client_CA_list(s); 989 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0)) 990 { 991 BIO_printf(bio,"---\nAcceptable client certificate CA names\n"); 992 for (i=0; i<sk_X509_NAME_num(sk2); i++) 993 { 994 xn=sk_X509_NAME_value(sk2,i); 995 X509_NAME_oneline(xn,buf,sizeof(buf)); 996 BIO_write(bio,buf,strlen(buf)); 997 BIO_write(bio,"\n",1); 998 } 999 } 1000 else 1001 { 1002 BIO_printf(bio,"---\nNo client certificate CA names sent\n"); 1003 } 1004 p=SSL_get_shared_ciphers(s,buf,sizeof buf); 1005 if (p != NULL) 1006 { 1007 /* This works only for SSL 2. In later protocol 1008 * versions, the client does not know what other 1009 * ciphers (in addition to the one to be used 1010 * in the current connection) the server supports. */ 1011 1012 BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n"); 1013 j=i=0; 1014 while (*p) 1015 { 1016 if (*p == ':') 1017 { 1018 BIO_write(bio,space,15-j%25); 1019 i++; 1020 j=0; 1021 BIO_write(bio,((i%3)?" ":"\n"),1); 1022 } 1023 else 1024 { 1025 BIO_write(bio,p,1); 1026 j++; 1027 } 1028 p++; 1029 } 1030 BIO_write(bio,"\n",1); 1031 } 1032 1033 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n", 1034 BIO_number_read(SSL_get_rbio(s)), 1035 BIO_number_written(SSL_get_wbio(s))); 1036 } 1037 BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, ")); 1038 c=SSL_get_current_cipher(s); 1039 BIO_printf(bio,"%s, Cipher is %s\n", 1040 SSL_CIPHER_get_version(c), 1041 SSL_CIPHER_get_name(c)); 1042 if (peer != NULL) { 1043 EVP_PKEY *pktmp; 1044 pktmp = X509_get_pubkey(peer); 1045 BIO_printf(bio,"Server public key is %d bit\n", 1046 EVP_PKEY_bits(pktmp)); 1047 EVP_PKEY_free(pktmp); 1048 } 1049 SSL_SESSION_print(bio,SSL_get_session(s)); 1050 BIO_printf(bio,"---\n"); 1051 if (peer != NULL) 1052 X509_free(peer); 1053 /* flush, or debugging output gets mixed with http response */ 1054 BIO_flush(bio); 1055 } 1056 1057