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(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)
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@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@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