1 /* crypto/ui/ui_openssl.c -*- mode:C; c-file-style: "eay" -*- */ 2 /* 3 * Written by Richard Levitte (richard@levitte.org) and others for the 4 * OpenSSL project 2001. 5 */ 6 /* ==================================================================== 7 * Copyright (c) 2001 The OpenSSL Project. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in 18 * the documentation and/or other materials provided with the 19 * distribution. 20 * 21 * 3. All advertising materials mentioning features or use of this 22 * software must display the following acknowledgment: 23 * "This product includes software developed by the OpenSSL Project 24 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 25 * 26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 27 * endorse or promote products derived from this software without 28 * prior written permission. For written permission, please contact 29 * openssl-core@openssl.org. 30 * 31 * 5. Products derived from this software may not be called "OpenSSL" 32 * nor may "OpenSSL" appear in their names without prior written 33 * permission of the OpenSSL Project. 34 * 35 * 6. Redistributions of any form whatsoever must retain the following 36 * acknowledgment: 37 * "This product includes software developed by the OpenSSL Project 38 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 39 * 40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 51 * OF THE POSSIBILITY OF SUCH DAMAGE. 52 * ==================================================================== 53 * 54 * This product includes cryptographic software written by Eric Young 55 * (eay@cryptsoft.com). This product includes software written by Tim 56 * Hudson (tjh@cryptsoft.com). 57 * 58 */ 59 60 /*- 61 * The lowest level part of this file was previously in crypto/des/read_pwd.c, 62 * Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 63 * All rights reserved. 64 * 65 * This package is an SSL implementation written 66 * by Eric Young (eay@cryptsoft.com). 67 * The implementation was written so as to conform with Netscapes SSL. 68 * 69 * This library is free for commercial and non-commercial use as long as 70 * the following conditions are aheared to. The following conditions 71 * apply to all code found in this distribution, be it the RC4, RSA, 72 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 73 * included with this distribution is covered by the same copyright terms 74 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 75 * 76 * Copyright remains Eric Young's, and as such any Copyright notices in 77 * the code are not to be removed. 78 * If this package is used in a product, Eric Young should be given attribution 79 * as the author of the parts of the library used. 80 * This can be in the form of a textual message at program startup or 81 * in documentation (online or textual) provided with the package. 82 * 83 * Redistribution and use in source and binary forms, with or without 84 * modification, are permitted provided that the following conditions 85 * are met: 86 * 1. Redistributions of source code must retain the copyright 87 * notice, this list of conditions and the following disclaimer. 88 * 2. Redistributions in binary form must reproduce the above copyright 89 * notice, this list of conditions and the following disclaimer in the 90 * documentation and/or other materials provided with the distribution. 91 * 3. All advertising materials mentioning features or use of this software 92 * must display the following acknowledgement: 93 * "This product includes cryptographic software written by 94 * Eric Young (eay@cryptsoft.com)" 95 * The word 'cryptographic' can be left out if the rouines from the library 96 * being used are not cryptographic related :-). 97 * 4. If you include any Windows specific code (or a derivative thereof) from 98 * the apps directory (application code) you must include an acknowledgement: 99 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 100 * 101 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 102 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 103 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 104 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 105 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 106 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 107 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 108 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 109 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 110 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 111 * SUCH DAMAGE. 112 * 113 * The licence and distribution terms for any publically available version or 114 * derivative of this code cannot be changed. i.e. this code cannot simply be 115 * copied and put under another distribution licence 116 * [including the GNU Public Licence.] 117 */ 118 119 #include <openssl/e_os2.h> 120 121 /* 122 * need for #define _POSIX_C_SOURCE arises whenever you pass -ansi to gcc 123 * [maybe others?], because it masks interfaces not discussed in standard, 124 * sigaction and fileno included. -pedantic would be more appropriate for the 125 * intended purposes, but we can't prevent users from adding -ansi. 126 */ 127 #if defined(OPENSSL_SYSNAME_VXWORKS) 128 # include <sys/types.h> 129 #endif 130 131 #if !defined(_POSIX_C_SOURCE) && defined(OPENSSL_SYS_VMS) 132 # ifndef _POSIX_C_SOURCE 133 # define _POSIX_C_SOURCE 2 134 # endif 135 #endif 136 #include <signal.h> 137 #include <stdio.h> 138 #include <string.h> 139 #include <errno.h> 140 141 #if !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS) 142 /* 143 * If unistd.h defines _POSIX_VERSION, we conclude that we are on a POSIX 144 * system and have sigaction and termios. 145 */ 146 # if defined(_POSIX_VERSION) 147 148 # define SIGACTION 149 # if !defined(TERMIOS) && !defined(TERMIO) && !defined(SGTTY) 150 # define TERMIOS 151 # endif 152 153 # endif 154 #endif 155 156 #ifdef WIN16TTY 157 # undef OPENSSL_SYS_WIN16 158 # undef WIN16 159 # undef _WINDOWS 160 # include <graph.h> 161 #endif 162 163 /* 06-Apr-92 Luke Brennan Support for VMS */ 164 #include "ui_locl.h" 165 #include "cryptlib.h" 166 167 #ifdef OPENSSL_SYS_VMS /* prototypes for sys$whatever */ 168 # include <starlet.h> 169 # ifdef __DECC 170 # pragma message disable DOLLARID 171 # endif 172 #endif 173 174 #ifdef WIN_CONSOLE_BUG 175 # include <windows.h> 176 # ifndef OPENSSL_SYS_WINCE 177 # include <wincon.h> 178 # endif 179 #endif 180 181 /* 182 * There are 5 types of terminal interface supported, TERMIO, TERMIOS, VMS, 183 * MSDOS and SGTTY. 184 * 185 * If someone defines one of the macros TERMIO, TERMIOS or SGTTY, it will 186 * remain respected. Otherwise, we default to TERMIOS except for a few 187 * systems that require something different. 188 * 189 * Note: we do not use SGTTY unless it's defined by the configuration. We 190 * may eventually opt to remove it's use entirely. 191 */ 192 193 #if !defined(TERMIOS) && !defined(TERMIO) && !defined(SGTTY) 194 195 # if defined(_LIBC) 196 # undef TERMIOS 197 # define TERMIO 198 # undef SGTTY 199 /* 200 * We know that VMS, MSDOS, VXWORKS, NETWARE use entirely other mechanisms. 201 * MAC_OS_GUSI_SOURCE should probably go away, but that needs to be confirmed. 202 */ 203 # elif !defined(OPENSSL_SYS_VMS) \ 204 && !defined(OPENSSL_SYS_MSDOS) \ 205 && !defined(OPENSSL_SYS_MACINTOSH_CLASSIC) \ 206 && !defined(MAC_OS_GUSI_SOURCE) \ 207 && !defined(OPENSSL_SYS_VXWORKS) \ 208 && !defined(OPENSSL_SYS_NETWARE) 209 # define TERMIOS 210 # undef TERMIO 211 # undef SGTTY 212 # endif 213 214 #endif 215 216 #ifdef TERMIOS 217 # include <termios.h> 218 # define TTY_STRUCT struct termios 219 # define TTY_FLAGS c_lflag 220 # define TTY_get(tty,data) tcgetattr(tty,data) 221 # define TTY_set(tty,data) tcsetattr(tty,TCSANOW,data) 222 #endif 223 224 #ifdef TERMIO 225 # include <termio.h> 226 # define TTY_STRUCT struct termio 227 # define TTY_FLAGS c_lflag 228 # define TTY_get(tty,data) ioctl(tty,TCGETA,data) 229 # define TTY_set(tty,data) ioctl(tty,TCSETA,data) 230 #endif 231 232 #ifdef SGTTY 233 # include <sgtty.h> 234 # define TTY_STRUCT struct sgttyb 235 # define TTY_FLAGS sg_flags 236 # define TTY_get(tty,data) ioctl(tty,TIOCGETP,data) 237 # define TTY_set(tty,data) ioctl(tty,TIOCSETP,data) 238 #endif 239 240 #if !defined(_LIBC) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS) && !defined(OPENSSL_SYS_MACINTOSH_CLASSIC) && !defined(OPENSSL_SYS_SUNOS) 241 # include <sys/ioctl.h> 242 #endif 243 244 #ifdef OPENSSL_SYS_MSDOS 245 # include <conio.h> 246 #endif 247 248 #ifdef OPENSSL_SYS_VMS 249 # include <ssdef.h> 250 # include <iodef.h> 251 # include <ttdef.h> 252 # include <descrip.h> 253 struct IOSB { 254 short iosb$w_value; 255 short iosb$w_count; 256 long iosb$l_info; 257 }; 258 #endif 259 260 #ifdef OPENSSL_SYS_SUNOS 261 typedef int sig_atomic_t; 262 #endif 263 264 #if defined(OPENSSL_SYS_MACINTOSH_CLASSIC) || defined(MAC_OS_GUSI_SOURCE) || defined(OPENSSL_SYS_NETWARE) 265 /* 266 * This one needs work. As a matter of fact the code is unoperational 267 * and this is only a trick to get it compiled. 268 * <appro@fy.chalmers.se> 269 */ 270 # define TTY_STRUCT int 271 #endif 272 273 #ifndef NX509_SIG 274 # define NX509_SIG 32 275 #endif 276 277 /* Define globals. They are protected by a lock */ 278 #ifdef SIGACTION 279 static struct sigaction savsig[NX509_SIG]; 280 #else 281 static void (*savsig[NX509_SIG]) (int); 282 #endif 283 284 #ifdef OPENSSL_SYS_VMS 285 static struct IOSB iosb; 286 static $DESCRIPTOR(terminal, "TT"); 287 static long tty_orig[3], tty_new[3]; /* XXX Is there any guarantee that this 288 * will always suffice for the actual 289 * structures? */ 290 static long status; 291 static unsigned short channel = 0; 292 #else 293 # if !defined(OPENSSL_SYS_MSDOS) || defined(__DJGPP__) 294 static TTY_STRUCT tty_orig, tty_new; 295 # endif 296 #endif 297 static FILE *tty_in, *tty_out; 298 static int is_a_tty; 299 300 /* Declare static functions */ 301 #if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE) 302 static int read_till_nl(FILE *); 303 static void recsig(int); 304 static void pushsig(void); 305 static void popsig(void); 306 #endif 307 #if defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN16) 308 static int noecho_fgets(char *buf, int size, FILE *tty); 309 #endif 310 static int read_string_inner(UI *ui, UI_STRING *uis, int echo, int strip_nl); 311 312 static int read_string(UI *ui, UI_STRING *uis); 313 static int write_string(UI *ui, UI_STRING *uis); 314 315 static int open_console(UI *ui); 316 static int echo_console(UI *ui); 317 static int noecho_console(UI *ui); 318 static int close_console(UI *ui); 319 320 static UI_METHOD ui_openssl = { 321 "OpenSSL default user interface", 322 open_console, 323 write_string, 324 NULL, /* No flusher is needed for command lines */ 325 read_string, 326 close_console, 327 NULL 328 }; 329 330 /* The method with all the built-in thingies */ 331 UI_METHOD *UI_OpenSSL(void) 332 { 333 return &ui_openssl; 334 } 335 336 /* 337 * The following function makes sure that info and error strings are printed 338 * before any prompt. 339 */ 340 static int write_string(UI *ui, UI_STRING *uis) 341 { 342 switch (UI_get_string_type(uis)) { 343 case UIT_ERROR: 344 case UIT_INFO: 345 fputs(UI_get0_output_string(uis), tty_out); 346 fflush(tty_out); 347 break; 348 default: 349 break; 350 } 351 return 1; 352 } 353 354 static int read_string(UI *ui, UI_STRING *uis) 355 { 356 int ok = 0; 357 358 switch (UI_get_string_type(uis)) { 359 case UIT_BOOLEAN: 360 fputs(UI_get0_output_string(uis), tty_out); 361 fputs(UI_get0_action_string(uis), tty_out); 362 fflush(tty_out); 363 return read_string_inner(ui, uis, 364 UI_get_input_flags(uis) & UI_INPUT_FLAG_ECHO, 365 0); 366 case UIT_PROMPT: 367 fputs(UI_get0_output_string(uis), tty_out); 368 fflush(tty_out); 369 return read_string_inner(ui, uis, 370 UI_get_input_flags(uis) & UI_INPUT_FLAG_ECHO, 371 1); 372 case UIT_VERIFY: 373 fprintf(tty_out, "Verifying - %s", UI_get0_output_string(uis)); 374 fflush(tty_out); 375 if ((ok = read_string_inner(ui, uis, 376 UI_get_input_flags(uis) & 377 UI_INPUT_FLAG_ECHO, 1)) <= 0) 378 return ok; 379 if (strcmp(UI_get0_result_string(uis), UI_get0_test_string(uis)) != 0) { 380 fprintf(tty_out, "Verify failure\n"); 381 fflush(tty_out); 382 return 0; 383 } 384 break; 385 default: 386 break; 387 } 388 return 1; 389 } 390 391 #if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE) 392 /* Internal functions to read a string without echoing */ 393 static int read_till_nl(FILE *in) 394 { 395 # define SIZE 4 396 char buf[SIZE + 1]; 397 398 do { 399 if (!fgets(buf, SIZE, in)) 400 return 0; 401 } while (strchr(buf, '\n') == NULL); 402 return 1; 403 } 404 405 static volatile sig_atomic_t intr_signal; 406 #endif 407 408 static int read_string_inner(UI *ui, UI_STRING *uis, int echo, int strip_nl) 409 { 410 static int ps; 411 int ok; 412 char result[BUFSIZ]; 413 int maxsize = BUFSIZ - 1; 414 #if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE) 415 char *p; 416 417 intr_signal = 0; 418 ok = 0; 419 ps = 0; 420 421 pushsig(); 422 ps = 1; 423 424 if (!echo && !noecho_console(ui)) 425 goto error; 426 ps = 2; 427 428 result[0] = '\0'; 429 # ifdef OPENSSL_SYS_MSDOS 430 if (!echo) { 431 noecho_fgets(result, maxsize, tty_in); 432 p = result; /* FIXME: noecho_fgets doesn't return errors */ 433 } else 434 p = fgets(result, maxsize, tty_in); 435 # else 436 p = fgets(result, maxsize, tty_in); 437 # endif 438 if (!p) 439 goto error; 440 if (feof(tty_in)) 441 goto error; 442 if (ferror(tty_in)) 443 goto error; 444 if ((p = (char *)strchr(result, '\n')) != NULL) { 445 if (strip_nl) 446 *p = '\0'; 447 } else if (!read_till_nl(tty_in)) 448 goto error; 449 if (UI_set_result(ui, uis, result) >= 0) 450 ok = 1; 451 452 error: 453 if (intr_signal == SIGINT) 454 ok = -1; 455 if (!echo) 456 fprintf(tty_out, "\n"); 457 if (ps >= 2 && !echo && !echo_console(ui)) 458 ok = 0; 459 460 if (ps >= 1) 461 popsig(); 462 #else 463 ok = 1; 464 #endif 465 466 OPENSSL_cleanse(result, BUFSIZ); 467 return ok; 468 } 469 470 /* Internal functions to open, handle and close a channel to the console. */ 471 static int open_console(UI *ui) 472 { 473 CRYPTO_w_lock(CRYPTO_LOCK_UI); 474 is_a_tty = 1; 475 476 #if defined(OPENSSL_SYS_MACINTOSH_CLASSIC) || defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS) 477 tty_in = stdin; 478 tty_out = stderr; 479 #else 480 # ifdef OPENSSL_SYS_MSDOS 481 # define DEV_TTY "con" 482 # else 483 # define DEV_TTY "/dev/tty" 484 # endif 485 if ((tty_in = fopen(DEV_TTY, "r")) == NULL) 486 tty_in = stdin; 487 if ((tty_out = fopen(DEV_TTY, "w")) == NULL) 488 tty_out = stderr; 489 #endif 490 491 #if defined(TTY_get) && !defined(OPENSSL_SYS_VMS) 492 if (TTY_get(fileno(tty_in), &tty_orig) == -1) { 493 # ifdef ENOTTY 494 if (errno == ENOTTY) 495 is_a_tty = 0; 496 else 497 # endif 498 # ifdef EINVAL 499 /* 500 * Ariel Glenn ariel@columbia.edu reports that solaris can return 501 * EINVAL instead. This should be ok 502 */ 503 if (errno == EINVAL) 504 is_a_tty = 0; 505 else 506 # endif 507 return 0; 508 } 509 #endif 510 #ifdef OPENSSL_SYS_VMS 511 status = sys$assign(&terminal, &channel, 0, 0); 512 if (status != SS$_NORMAL) 513 return 0; 514 status = 515 sys$qiow(0, channel, IO$_SENSEMODE, &iosb, 0, 0, tty_orig, 12, 0, 0, 516 0, 0); 517 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL)) 518 return 0; 519 #endif 520 return 1; 521 } 522 523 static int noecho_console(UI *ui) 524 { 525 #ifdef TTY_FLAGS 526 memcpy(&(tty_new), &(tty_orig), sizeof(tty_orig)); 527 tty_new.TTY_FLAGS &= ~ECHO; 528 #endif 529 530 #if defined(TTY_set) && !defined(OPENSSL_SYS_VMS) 531 if (is_a_tty && (TTY_set(fileno(tty_in), &tty_new) == -1)) 532 return 0; 533 #endif 534 #ifdef OPENSSL_SYS_VMS 535 tty_new[0] = tty_orig[0]; 536 tty_new[1] = tty_orig[1] | TT$M_NOECHO; 537 tty_new[2] = tty_orig[2]; 538 status = 539 sys$qiow(0, channel, IO$_SETMODE, &iosb, 0, 0, tty_new, 12, 0, 0, 0, 540 0); 541 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL)) 542 return 0; 543 #endif 544 return 1; 545 } 546 547 static int echo_console(UI *ui) 548 { 549 #if defined(TTY_set) && !defined(OPENSSL_SYS_VMS) 550 memcpy(&(tty_new), &(tty_orig), sizeof(tty_orig)); 551 tty_new.TTY_FLAGS |= ECHO; 552 #endif 553 554 #if defined(TTY_set) && !defined(OPENSSL_SYS_VMS) 555 if (is_a_tty && (TTY_set(fileno(tty_in), &tty_new) == -1)) 556 return 0; 557 #endif 558 #ifdef OPENSSL_SYS_VMS 559 tty_new[0] = tty_orig[0]; 560 tty_new[1] = tty_orig[1] & ~TT$M_NOECHO; 561 tty_new[2] = tty_orig[2]; 562 status = 563 sys$qiow(0, channel, IO$_SETMODE, &iosb, 0, 0, tty_new, 12, 0, 0, 0, 564 0); 565 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL)) 566 return 0; 567 #endif 568 return 1; 569 } 570 571 static int close_console(UI *ui) 572 { 573 if (tty_in != stdin) 574 fclose(tty_in); 575 if (tty_out != stderr) 576 fclose(tty_out); 577 #ifdef OPENSSL_SYS_VMS 578 status = sys$dassgn(channel); 579 #endif 580 CRYPTO_w_unlock(CRYPTO_LOCK_UI); 581 582 return 1; 583 } 584 585 #if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE) 586 /* Internal functions to handle signals and act on them */ 587 static void pushsig(void) 588 { 589 # ifndef OPENSSL_SYS_WIN32 590 int i; 591 # endif 592 # ifdef SIGACTION 593 struct sigaction sa; 594 595 memset(&sa, 0, sizeof sa); 596 sa.sa_handler = recsig; 597 # endif 598 599 # ifdef OPENSSL_SYS_WIN32 600 savsig[SIGABRT] = signal(SIGABRT, recsig); 601 savsig[SIGFPE] = signal(SIGFPE, recsig); 602 savsig[SIGILL] = signal(SIGILL, recsig); 603 savsig[SIGINT] = signal(SIGINT, recsig); 604 savsig[SIGSEGV] = signal(SIGSEGV, recsig); 605 savsig[SIGTERM] = signal(SIGTERM, recsig); 606 # else 607 for (i = 1; i < NX509_SIG; i++) { 608 # ifdef SIGUSR1 609 if (i == SIGUSR1) 610 continue; 611 # endif 612 # ifdef SIGUSR2 613 if (i == SIGUSR2) 614 continue; 615 # endif 616 # ifdef SIGKILL 617 if (i == SIGKILL) /* We can't make any action on that. */ 618 continue; 619 # endif 620 # ifdef SIGACTION 621 sigaction(i, &sa, &savsig[i]); 622 # else 623 savsig[i] = signal(i, recsig); 624 # endif 625 } 626 # endif 627 628 # ifdef SIGWINCH 629 signal(SIGWINCH, SIG_DFL); 630 # endif 631 } 632 633 static void popsig(void) 634 { 635 # ifdef OPENSSL_SYS_WIN32 636 signal(SIGABRT, savsig[SIGABRT]); 637 signal(SIGFPE, savsig[SIGFPE]); 638 signal(SIGILL, savsig[SIGILL]); 639 signal(SIGINT, savsig[SIGINT]); 640 signal(SIGSEGV, savsig[SIGSEGV]); 641 signal(SIGTERM, savsig[SIGTERM]); 642 # else 643 int i; 644 for (i = 1; i < NX509_SIG; i++) { 645 # ifdef SIGUSR1 646 if (i == SIGUSR1) 647 continue; 648 # endif 649 # ifdef SIGUSR2 650 if (i == SIGUSR2) 651 continue; 652 # endif 653 # ifdef SIGACTION 654 sigaction(i, &savsig[i], NULL); 655 # else 656 signal(i, savsig[i]); 657 # endif 658 } 659 # endif 660 } 661 662 static void recsig(int i) 663 { 664 intr_signal = i; 665 } 666 #endif 667 668 /* Internal functions specific for Windows */ 669 #if defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE) 670 static int noecho_fgets(char *buf, int size, FILE *tty) 671 { 672 int i; 673 char *p; 674 675 p = buf; 676 for (;;) { 677 if (size == 0) { 678 *p = '\0'; 679 break; 680 } 681 size--; 682 # ifdef WIN16TTY 683 i = _inchar(); 684 # elif defined(_WIN32) 685 i = _getch(); 686 # else 687 i = getch(); 688 # endif 689 if (i == '\r') 690 i = '\n'; 691 *(p++) = i; 692 if (i == '\n') { 693 *p = '\0'; 694 break; 695 } 696 } 697 # ifdef WIN_CONSOLE_BUG 698 /* 699 * Win95 has several evil console bugs: one of these is that the last 700 * character read using getch() is passed to the next read: this is 701 * usually a CR so this can be trouble. No STDIO fix seems to work but 702 * flushing the console appears to do the trick. 703 */ 704 { 705 HANDLE inh; 706 inh = GetStdHandle(STD_INPUT_HANDLE); 707 FlushConsoleInputBuffer(inh); 708 } 709 # endif 710 return (strlen(buf)); 711 } 712 #endif 713