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