1 /* crypto/ui/ui_openssl.c -*- mode:C; c-file-style: "eay" -*- */ 2 /* Written by Richard Levitte (richard (at) 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 (at) 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 (at) cryptsoft.com). This product includes software written by Tim 55 * Hudson (tjh (at) 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 (at) cryptsoft.com) 61 * All rights reserved. 62 * 63 * This package is an SSL implementation written 64 * by Eric Young (eay (at) 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 (at) 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 (at) 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 (at) 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(OPENSSL_SYSNAME_VXWORKS) 126 #include <sys/types.h> 127 #endif 128 129 #if !defined(_POSIX_C_SOURCE) && defined(OPENSSL_SYS_VMS) 130 #ifndef _POSIX_C_SOURCE 131 #define _POSIX_C_SOURCE 2 132 #endif 133 #endif 134 #include <signal.h> 135 #include <stdio.h> 136 #include <string.h> 137 #include <errno.h> 138 139 #if !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS) 140 # ifdef OPENSSL_UNISTD 141 # include OPENSSL_UNISTD 142 # else 143 # include <unistd.h> 144 # endif 145 /* If unistd.h defines _POSIX_VERSION, we conclude that we 146 * are on a POSIX system and have sigaction and termios. */ 147 # if defined(_POSIX_VERSION) 148 149 # define SIGACTION 150 # if !defined(TERMIOS) && !defined(TERMIO) && !defined(SGTTY) 151 # define TERMIOS 152 # endif 153 154 # endif 155 #endif 156 157 #ifdef WIN16TTY 158 # undef OPENSSL_SYS_WIN16 159 # undef WIN16 160 # undef _WINDOWS 161 # include <graph.h> 162 #endif 163 164 /* 06-Apr-92 Luke Brennan Support for VMS */ 165 #include "ui_locl.h" 166 #include "cryptlib.h" 167 168 #ifdef OPENSSL_SYS_VMS /* prototypes for sys$whatever */ 169 # include <starlet.h> 170 # ifdef __DECC 171 # pragma message disable DOLLARID 172 # endif 173 #endif 174 175 #ifdef WIN_CONSOLE_BUG 176 # include <windows.h> 177 #ifndef OPENSSL_SYS_WINCE 178 # include <wincon.h> 179 #endif 180 #endif 181 182 183 /* There are 5 types of terminal interface supported, 184 * TERMIO, TERMIOS, VMS, MSDOS and SGTTY 185 */ 186 187 #if defined(__sgi) && !defined(TERMIOS) 188 # define TERMIOS 189 # undef TERMIO 190 # undef SGTTY 191 #endif 192 193 #if defined(linux) && !defined(TERMIO) && !defined(__ANDROID__) 194 # undef TERMIOS 195 # define TERMIO 196 # undef SGTTY 197 #endif 198 199 #ifdef _LIBC 200 # undef TERMIOS 201 # define TERMIO 202 # undef SGTTY 203 #endif 204 205 #if !defined(TERMIO) && !defined(TERMIOS) && !defined(OPENSSL_SYS_VMS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_MACINTOSH_CLASSIC) && !defined(MAC_OS_GUSI_SOURCE) 206 # undef TERMIOS 207 # undef TERMIO 208 # define SGTTY 209 #endif 210 211 #if defined(OPENSSL_SYS_VXWORKS) 212 #undef TERMIOS 213 #undef TERMIO 214 #undef SGTTY 215 #endif 216 217 #if defined(OPENSSL_SYS_NETWARE) 218 #undef TERMIOS 219 #undef TERMIO 220 #undef SGTTY 221 #endif 222 223 #ifdef TERMIOS 224 # include <termios.h> 225 # define TTY_STRUCT struct termios 226 # define TTY_FLAGS c_lflag 227 # define TTY_get(tty,data) tcgetattr(tty,data) 228 # define TTY_set(tty,data) tcsetattr(tty,TCSANOW,data) 229 #endif 230 231 #ifdef TERMIO 232 # include <termio.h> 233 # define TTY_STRUCT struct termio 234 # define TTY_FLAGS c_lflag 235 # define TTY_get(tty,data) ioctl(tty,TCGETA,data) 236 # define TTY_set(tty,data) ioctl(tty,TCSETA,data) 237 #endif 238 239 #ifdef SGTTY 240 # include <sgtty.h> 241 # define TTY_STRUCT struct sgttyb 242 # define TTY_FLAGS sg_flags 243 # define TTY_get(tty,data) ioctl(tty,TIOCGETP,data) 244 # define TTY_set(tty,data) ioctl(tty,TIOCSETP,data) 245 #endif 246 247 #if !defined(_LIBC) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS) && !defined(OPENSSL_SYS_MACINTOSH_CLASSIC) && !defined(OPENSSL_SYS_SUNOS) 248 # include <sys/ioctl.h> 249 #endif 250 251 #ifdef OPENSSL_SYS_MSDOS 252 # include <conio.h> 253 #endif 254 255 #ifdef OPENSSL_SYS_VMS 256 # include <ssdef.h> 257 # include <iodef.h> 258 # include <ttdef.h> 259 # include <descrip.h> 260 struct IOSB { 261 short iosb$w_value; 262 short iosb$w_count; 263 long iosb$l_info; 264 }; 265 #endif 266 267 #ifdef OPENSSL_SYS_SUNOS 268 typedef int sig_atomic_t; 269 #endif 270 271 #if defined(OPENSSL_SYS_MACINTOSH_CLASSIC) || defined(MAC_OS_GUSI_SOURCE) || defined(OPENSSL_SYS_NETWARE) 272 /* 273 * This one needs work. As a matter of fact the code is unoperational 274 * and this is only a trick to get it compiled. 275 * <appro (at) fy.chalmers.se> 276 */ 277 # define TTY_STRUCT int 278 #endif 279 280 #ifndef NX509_SIG 281 # define NX509_SIG 32 282 #endif 283 284 285 /* Define globals. They are protected by a lock */ 286 #ifdef SIGACTION 287 static struct sigaction savsig[NX509_SIG]; 288 #else 289 static void (*savsig[NX509_SIG])(int ); 290 #endif 291 292 #ifdef OPENSSL_SYS_VMS 293 static struct IOSB iosb; 294 static $DESCRIPTOR(terminal,"TT"); 295 static long tty_orig[3], tty_new[3]; /* XXX Is there any guarantee that this will always suffice for the actual structures? */ 296 static long status; 297 static unsigned short channel = 0; 298 #else 299 #if !defined(OPENSSL_SYS_MSDOS) || defined(__DJGPP__) 300 static TTY_STRUCT tty_orig,tty_new; 301 #endif 302 #endif 303 static FILE *tty_in, *tty_out; 304 static int is_a_tty; 305 306 /* Declare static functions */ 307 #if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE) 308 static int read_till_nl(FILE *); 309 static void recsig(int); 310 static void pushsig(void); 311 static void popsig(void); 312 #endif 313 #if defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN16) 314 static int noecho_fgets(char *buf, int size, FILE *tty); 315 #endif 316 static int read_string_inner(UI *ui, UI_STRING *uis, int echo, int strip_nl); 317 318 static int read_string(UI *ui, UI_STRING *uis); 319 static int write_string(UI *ui, UI_STRING *uis); 320 321 static int open_console(UI *ui); 322 static int echo_console(UI *ui); 323 static int noecho_console(UI *ui); 324 static int close_console(UI *ui); 325 326 static UI_METHOD ui_openssl = 327 { 328 "OpenSSL default user interface", 329 open_console, 330 write_string, 331 NULL, /* No flusher is needed for command lines */ 332 read_string, 333 close_console, 334 NULL 335 }; 336 337 /* The method with all the built-in thingies */ 338 UI_METHOD *UI_OpenSSL(void) 339 { 340 return &ui_openssl; 341 } 342 343 /* The following function makes sure that info and error strings are printed 344 before any prompt. */ 345 static int write_string(UI *ui, UI_STRING *uis) 346 { 347 switch (UI_get_string_type(uis)) 348 { 349 case UIT_ERROR: 350 case UIT_INFO: 351 fputs(UI_get0_output_string(uis), tty_out); 352 fflush(tty_out); 353 break; 354 default: 355 break; 356 } 357 return 1; 358 } 359 360 static int read_string(UI *ui, UI_STRING *uis) 361 { 362 int ok = 0; 363 364 switch (UI_get_string_type(uis)) 365 { 366 case UIT_BOOLEAN: 367 fputs(UI_get0_output_string(uis), tty_out); 368 fputs(UI_get0_action_string(uis), tty_out); 369 fflush(tty_out); 370 return read_string_inner(ui, uis, 371 UI_get_input_flags(uis) & UI_INPUT_FLAG_ECHO, 0); 372 case UIT_PROMPT: 373 fputs(UI_get0_output_string(uis), tty_out); 374 fflush(tty_out); 375 return read_string_inner(ui, uis, 376 UI_get_input_flags(uis) & UI_INPUT_FLAG_ECHO, 1); 377 case UIT_VERIFY: 378 fprintf(tty_out,"Verifying - %s", 379 UI_get0_output_string(uis)); 380 fflush(tty_out); 381 if ((ok = read_string_inner(ui, uis, 382 UI_get_input_flags(uis) & UI_INPUT_FLAG_ECHO, 1)) <= 0) 383 return ok; 384 if (strcmp(UI_get0_result_string(uis), 385 UI_get0_test_string(uis)) != 0) 386 { 387 fprintf(tty_out,"Verify failure\n"); 388 fflush(tty_out); 389 return 0; 390 } 391 break; 392 default: 393 break; 394 } 395 return 1; 396 } 397 398 399 #if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE) 400 /* Internal functions to read a string without echoing */ 401 static int read_till_nl(FILE *in) 402 { 403 #define SIZE 4 404 char buf[SIZE+1]; 405 406 do { 407 if (!fgets(buf,SIZE,in)) 408 return 0; 409 } while (strchr(buf,'\n') == NULL); 410 return 1; 411 } 412 413 static volatile sig_atomic_t intr_signal; 414 #endif 415 416 static int read_string_inner(UI *ui, UI_STRING *uis, int echo, int strip_nl) 417 { 418 static int ps; 419 int ok; 420 char result[BUFSIZ]; 421 int maxsize = BUFSIZ-1; 422 #if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE) 423 char *p; 424 425 intr_signal=0; 426 ok=0; 427 ps=0; 428 429 pushsig(); 430 ps=1; 431 432 if (!echo && !noecho_console(ui)) 433 goto error; 434 ps=2; 435 436 result[0]='\0'; 437 #ifdef OPENSSL_SYS_MSDOS 438 if (!echo) 439 { 440 noecho_fgets(result,maxsize,tty_in); 441 p=result; /* FIXME: noecho_fgets doesn't return errors */ 442 } 443 else 444 p=fgets(result,maxsize,tty_in); 445 #else 446 p=fgets(result,maxsize,tty_in); 447 #endif 448 if(!p) 449 goto error; 450 if (feof(tty_in)) goto error; 451 if (ferror(tty_in)) goto error; 452 if ((p=(char *)strchr(result,'\n')) != NULL) 453 { 454 if (strip_nl) 455 *p='\0'; 456 } 457 else 458 if (!read_till_nl(tty_in)) 459 goto error; 460 if (UI_set_result(ui, uis, result) >= 0) 461 ok=1; 462 463 error: 464 if (intr_signal == SIGINT) 465 ok=-1; 466 if (!echo) fprintf(tty_out,"\n"); 467 if (ps >= 2 && !echo && !echo_console(ui)) 468 ok=0; 469 470 if (ps >= 1) 471 popsig(); 472 #else 473 ok=1; 474 #endif 475 476 OPENSSL_cleanse(result,BUFSIZ); 477 return ok; 478 } 479 480 481 /* Internal functions to open, handle and close a channel to the console. */ 482 static int open_console(UI *ui) 483 { 484 CRYPTO_w_lock(CRYPTO_LOCK_UI); 485 is_a_tty = 1; 486 487 #if defined(OPENSSL_SYS_MACINTOSH_CLASSIC) || defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS) 488 tty_in=stdin; 489 tty_out=stderr; 490 #else 491 # ifdef OPENSSL_SYS_MSDOS 492 # define DEV_TTY "con" 493 # else 494 # define DEV_TTY "/dev/tty" 495 # endif 496 if ((tty_in=fopen(DEV_TTY,"r")) == NULL) 497 tty_in=stdin; 498 if ((tty_out=fopen(DEV_TTY,"w")) == NULL) 499 tty_out=stderr; 500 #endif 501 502 #if defined(TTY_get) && !defined(OPENSSL_SYS_VMS) 503 if (TTY_get(fileno(tty_in),&tty_orig) == -1) 504 { 505 #ifdef ENOTTY 506 if (errno == ENOTTY) 507 is_a_tty=0; 508 else 509 #endif 510 #ifdef EINVAL 511 /* Ariel Glenn ariel (at) columbia.edu reports that solaris 512 * can return EINVAL instead. This should be ok */ 513 if (errno == EINVAL) 514 is_a_tty=0; 515 else 516 #endif 517 return 0; 518 } 519 #endif 520 #ifdef OPENSSL_SYS_VMS 521 status = sys$assign(&terminal,&channel,0,0); 522 if (status != SS$_NORMAL) 523 return 0; 524 status=sys$qiow(0,channel,IO$_SENSEMODE,&iosb,0,0,tty_orig,12,0,0,0,0); 525 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL)) 526 return 0; 527 #endif 528 return 1; 529 } 530 531 static int noecho_console(UI *ui) 532 { 533 #ifdef TTY_FLAGS 534 memcpy(&(tty_new),&(tty_orig),sizeof(tty_orig)); 535 tty_new.TTY_FLAGS &= ~ECHO; 536 #endif 537 538 #if defined(TTY_set) && !defined(OPENSSL_SYS_VMS) 539 if (is_a_tty && (TTY_set(fileno(tty_in),&tty_new) == -1)) 540 return 0; 541 #endif 542 #ifdef OPENSSL_SYS_VMS 543 tty_new[0] = tty_orig[0]; 544 tty_new[1] = tty_orig[1] | TT$M_NOECHO; 545 tty_new[2] = tty_orig[2]; 546 status = sys$qiow(0,channel,IO$_SETMODE,&iosb,0,0,tty_new,12,0,0,0,0); 547 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL)) 548 return 0; 549 #endif 550 return 1; 551 } 552 553 static int echo_console(UI *ui) 554 { 555 #if defined(TTY_set) && !defined(OPENSSL_SYS_VMS) 556 memcpy(&(tty_new),&(tty_orig),sizeof(tty_orig)); 557 tty_new.TTY_FLAGS |= ECHO; 558 #endif 559 560 #if defined(TTY_set) && !defined(OPENSSL_SYS_VMS) 561 if (is_a_tty && (TTY_set(fileno(tty_in),&tty_new) == -1)) 562 return 0; 563 #endif 564 #ifdef OPENSSL_SYS_VMS 565 tty_new[0] = tty_orig[0]; 566 tty_new[1] = tty_orig[1] & ~TT$M_NOECHO; 567 tty_new[2] = tty_orig[2]; 568 status = sys$qiow(0,channel,IO$_SETMODE,&iosb,0,0,tty_new,12,0,0,0,0); 569 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL)) 570 return 0; 571 #endif 572 return 1; 573 } 574 575 static int close_console(UI *ui) 576 { 577 if (tty_in != stdin) fclose(tty_in); 578 if (tty_out != stderr) fclose(tty_out); 579 #ifdef OPENSSL_SYS_VMS 580 status = sys$dassgn(channel); 581 #endif 582 CRYPTO_w_unlock(CRYPTO_LOCK_UI); 583 584 return 1; 585 } 586 587 588 #if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE) 589 /* Internal functions to handle signals and act on them */ 590 static void pushsig(void) 591 { 592 #ifndef OPENSSL_SYS_WIN32 593 int i; 594 #endif 595 #ifdef SIGACTION 596 struct sigaction sa; 597 598 memset(&sa,0,sizeof sa); 599 sa.sa_handler=recsig; 600 #endif 601 602 #ifdef OPENSSL_SYS_WIN32 603 savsig[SIGABRT]=signal(SIGABRT,recsig); 604 savsig[SIGFPE]=signal(SIGFPE,recsig); 605 savsig[SIGILL]=signal(SIGILL,recsig); 606 savsig[SIGINT]=signal(SIGINT,recsig); 607 savsig[SIGSEGV]=signal(SIGSEGV,recsig); 608 savsig[SIGTERM]=signal(SIGTERM,recsig); 609 #else 610 for (i=1; i<NX509_SIG; i++) 611 { 612 #ifdef SIGUSR1 613 if (i == SIGUSR1) 614 continue; 615 #endif 616 #ifdef SIGUSR2 617 if (i == SIGUSR2) 618 continue; 619 #endif 620 #ifdef SIGKILL 621 if (i == SIGKILL) /* We can't make any action on that. */ 622 continue; 623 #endif 624 #ifdef SIGACTION 625 sigaction(i,&sa,&savsig[i]); 626 #else 627 savsig[i]=signal(i,recsig); 628 #endif 629 } 630 #endif 631 632 #ifdef SIGWINCH 633 signal(SIGWINCH,SIG_DFL); 634 #endif 635 } 636 637 static void popsig(void) 638 { 639 #ifdef OPENSSL_SYS_WIN32 640 signal(SIGABRT,savsig[SIGABRT]); 641 signal(SIGFPE,savsig[SIGFPE]); 642 signal(SIGILL,savsig[SIGILL]); 643 signal(SIGINT,savsig[SIGINT]); 644 signal(SIGSEGV,savsig[SIGSEGV]); 645 signal(SIGTERM,savsig[SIGTERM]); 646 #else 647 int i; 648 for (i=1; i<NX509_SIG; i++) 649 { 650 #ifdef SIGUSR1 651 if (i == SIGUSR1) 652 continue; 653 #endif 654 #ifdef SIGUSR2 655 if (i == SIGUSR2) 656 continue; 657 #endif 658 #ifdef SIGACTION 659 sigaction(i,&savsig[i],NULL); 660 #else 661 signal(i,savsig[i]); 662 #endif 663 } 664 #endif 665 } 666 667 static void recsig(int i) 668 { 669 intr_signal=i; 670 } 671 #endif 672 673 /* Internal functions specific for Windows */ 674 #if defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE) 675 static int noecho_fgets(char *buf, int size, FILE *tty) 676 { 677 int i; 678 char *p; 679 680 p=buf; 681 for (;;) 682 { 683 if (size == 0) 684 { 685 *p='\0'; 686 break; 687 } 688 size--; 689 #ifdef WIN16TTY 690 i=_inchar(); 691 #elif defined(_WIN32) 692 i=_getch(); 693 #else 694 i=getch(); 695 #endif 696 if (i == '\r') i='\n'; 697 *(p++)=i; 698 if (i == '\n') 699 { 700 *p='\0'; 701 break; 702 } 703 } 704 #ifdef WIN_CONSOLE_BUG 705 /* Win95 has several evil console bugs: one of these is that the 706 * last character read using getch() is passed to the next read: this is 707 * usually a CR so this can be trouble. No STDIO fix seems to work but 708 * flushing the console appears to do the trick. 709 */ 710 { 711 HANDLE inh; 712 inh = GetStdHandle(STD_INPUT_HANDLE); 713 FlushConsoleInputBuffer(inh); 714 } 715 #endif 716 return(strlen(buf)); 717 } 718 #endif 719
