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Change my debugging entries to do fierce BIGNUM debugging.
[thirdparty/openssl.git] / crypto / ui / ui_openssl.c
CommitLineData
a63d5eaa 1/* crypto/ui/ui_openssl.c -*- mode:C; c-file-style: "eay" -*- */
219a3580
RL		 2/* Written by Richard Levitte (richard@levitte.org) and others
3 * for the OpenSSL project 2001.
a63d5eaa
RL		 4 */
5/* ====================================================================
219a3580 6 * Copyright (c) 2001 The OpenSSL Project. All rights reserved.
a63d5eaa
RL		 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
02790299
RL		 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
7babdf20 118#include <openssl/e_os2.h>
02790299 119
2ee67f1d
RL		 120#define _POSIX_C_SOURCE 1
121#include <signal.h>
122#include <stdio.h>
123#undef _POSIX_C_SOURCE
124#include <string.h>
125#include <errno.h>
126
02790299
RL		 127#if !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS)
128# ifdef OPENSSL_UNISTD
129# include OPENSSL_UNISTD
130# else
131# include <unistd.h>
132# endif
a63d5eaa
RL		 133/* If unistd.h defines _POSIX_VERSION, we conclude that we
134 * are on a POSIX system and have sigaction and termios. */
02790299 135# if defined(_POSIX_VERSION)
a63d5eaa 136
02790299
RL		 137# define SIGACTION
138# if !defined(TERMIOS) && !defined(TERMIO) && !defined(SGTTY)
139# define TERMIOS
140# endif
a63d5eaa 141
02790299 142# endif
a63d5eaa 143#endif
a63d5eaa
RL		 144
145#ifdef WIN16TTY
02790299
RL		 146# undef OPENSSL_SYS_WIN16
147# undef WIN16
148# undef _WINDOWS
149# include <graph.h>
a63d5eaa
RL		 150#endif
151
152/* 06-Apr-92 Luke Brennan Support for VMS */
153#include "ui_locl.h"
154#include "cryptlib.h"
a63d5eaa 155
02790299
RL		 156#ifdef OPENSSL_SYS_VMS /* prototypes for sys$whatever */
157# include <starlet.h>
158# ifdef __DECC
159# pragma message disable DOLLARID
160# endif
a63d5eaa
RL		 161#endif
162
163#ifdef WIN_CONSOLE_BUG
02790299 164# include <windows.h>
0bf23d9b 165#ifndef OPENSSL_SYS_WINCE
02790299 166# include <wincon.h>
a63d5eaa 167#endif
0bf23d9b 168#endif
a63d5eaa
RL		 169
170
171/* There are 5 types of terminal interface supported,
172 * TERMIO, TERMIOS, VMS, MSDOS and SGTTY
173 */
174
175#if defined(__sgi) && !defined(TERMIOS)
02790299
RL		 176# define TERMIOS
177# undef TERMIO
178# undef SGTTY
a63d5eaa
RL		 179#endif
180
181#if defined(linux) && !defined(TERMIO)
02790299
RL		 182# undef TERMIOS
183# define TERMIO
184# undef SGTTY
a63d5eaa
RL		 185#endif
186
187#ifdef _LIBC
02790299
RL		 188# undef TERMIOS
189# define TERMIO
190# undef SGTTY
a63d5eaa
RL		 191#endif
192
02790299
RL		 193#if !defined(TERMIO) && !defined(TERMIOS) && !defined(OPENSSL_SYS_VMS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_MACINTOSH_CLASSIC) && !defined(MAC_OS_GUSI_SOURCE)
194# undef TERMIOS
195# undef TERMIO
196# define SGTTY
a63d5eaa
RL		 197#endif
198
6a89a25c 199#if defined(OPENSSL_SYS_VXWORKS)
3e83e686
RL		 200#undef TERMIOS
201#undef TERMIO
202#undef SGTTY
203#endif
204
a63d5eaa 205#ifdef TERMIOS
02790299
RL		 206# include <termios.h>
207# define TTY_STRUCT struct termios
208# define TTY_FLAGS c_lflag
209# define TTY_get(tty,data) tcgetattr(tty,data)
210# define TTY_set(tty,data) tcsetattr(tty,TCSANOW,data)
a63d5eaa
RL		 211#endif
212
213#ifdef TERMIO
02790299
RL		 214# include <termio.h>
215# define TTY_STRUCT struct termio
216# define TTY_FLAGS c_lflag
217# define TTY_get(tty,data) ioctl(tty,TCGETA,data)
218# define TTY_set(tty,data) ioctl(tty,TCSETA,data)
a63d5eaa
RL		 219#endif
220
221#ifdef SGTTY
02790299
RL		 222# include <sgtty.h>
223# define TTY_STRUCT struct sgttyb
224# define TTY_FLAGS sg_flags
225# define TTY_get(tty,data) ioctl(tty,TIOCGETP,data)
226# define TTY_set(tty,data) ioctl(tty,TIOCSETP,data)
a63d5eaa
RL		 227#endif
228
0709385d 229#if !defined(_LIBC) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS) && !defined(OPENSSL_SYS_MACINTOSH_CLASSIC) && !defined(OPENSSL_SYS_SUNOS)
02790299 230# include <sys/ioctl.h>
a63d5eaa
RL		 231#endif
232
02790299
RL		 233#ifdef OPENSSL_SYS_MSDOS
234# include <conio.h>
a63d5eaa
RL		 235#endif
236
02790299
RL		 237#ifdef OPENSSL_SYS_VMS
238# include <ssdef.h>
239# include <iodef.h>
240# include <ttdef.h>
241# include <descrip.h>
a63d5eaa
RL		 242struct IOSB {
243 short iosb$w_value;
244 short iosb$w_count;
245 long iosb$l_info;
246 };
247#endif
248
0709385d
RL		 249#ifdef OPENSSL_SYS_SUNOS
250 typedef int sig_atomic_t;
251#endif
252
02790299 253#if defined(OPENSSL_SYS_MACINTOSH_CLASSIC) || defined(MAC_OS_GUSI_SOURCE)
a63d5eaa
RL		 254/*
255 * This one needs work. As a matter of fact the code is unoperational
256 * and this is only a trick to get it compiled.
257 * <appro@fy.chalmers.se>
258 */
02790299 259# define TTY_STRUCT int
a63d5eaa
RL		 260#endif
261
262#ifndef NX509_SIG
02790299 263# define NX509_SIG 32
a63d5eaa
RL		 264#endif
265
266
267/* Define globals. They are protected by a lock */
268#ifdef SIGACTION
269static struct sigaction savsig[NX509_SIG];
270#else
271static void (*savsig[NX509_SIG])(int );
272#endif
a63d5eaa 273
02790299 274#ifdef OPENSSL_SYS_VMS
a63d5eaa
RL		 275static struct IOSB iosb;
276static $DESCRIPTOR(terminal,"TT");
200bc9e3 277static long tty_orig[3], tty_new[3]; /* XXX Is there any guarantee that this will always suffice for the actual structures? */
a63d5eaa
RL		 278static long status;
279static unsigned short channel = 0;
280#else
451dc18f 281#if !defined(OPENSSL_SYS_MSDOS) || defined(__DJGPP__)
a63d5eaa
RL		 282static TTY_STRUCT tty_orig,tty_new;
283#endif
284#endif
200bc9e3 285static FILE *tty_in, *tty_out;
a63d5eaa
RL		 286static int is_a_tty;
287
288/* Declare static functions */
0bf23d9b 289#if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE)
a63d5eaa
RL		 290static void read_till_nl(FILE *);
291static void recsig(int);
292static void pushsig(void);
293static void popsig(void);
0bf23d9b 294#endif
29fb08c2 295#if defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN16)
a63d5eaa
RL		 296static int noecho_fgets(char *buf, int size, FILE *tty);
297#endif
b589977b 298static int read_string_inner(UI *ui, UI_STRING *uis, int echo, int strip_nl);
a63d5eaa
RL		 299
300static int read_string(UI *ui, UI_STRING *uis);
9ad0f681 301static int write_string(UI *ui, UI_STRING *uis);
a63d5eaa
RL		 302
303static int open_console(UI *ui);
304static int echo_console(UI *ui);
305static int noecho_console(UI *ui);
306static int close_console(UI *ui);
307
308static UI_METHOD ui_openssl =
309 {
310 "OpenSSL default user interface",
311 open_console,
9ad0f681
RL		 312 write_string,
313 NULL, /* No flusher is needed for command lines */
a63d5eaa 314 read_string,
a63d5eaa 315 close_console,
9ad0f681 316 NULL
a63d5eaa
RL		 317 };
318
319/* The method with all the built-in thingies */
320UI_METHOD *UI_OpenSSL(void)
321 {
322 return &ui_openssl;
323 }
324
9ad0f681
RL		 325/* The following function makes sure that info and error strings are printed
326 before any prompt. */
327static int write_string(UI *ui, UI_STRING *uis)
a63d5eaa
RL		 328 {
329 switch (UI_get_string_type(uis))
330 {
b589977b
RL		 331 case UIT_ERROR:
332 case UIT_INFO:
9ad0f681 333 fputs(UI_get0_output_string(uis), tty_out);
200bc9e3 334 fflush(tty_out);
a63d5eaa 335 break;
b589977b
RL		 336 default:
337 break;
9ad0f681
RL		 338 }
339 return 1;
340 }
341
342static int read_string(UI *ui, UI_STRING *uis)
343 {
344 int ok = 0;
345
346 switch (UI_get_string_type(uis))
347 {
b589977b
RL		 348 case UIT_BOOLEAN:
349 fputs(UI_get0_output_string(uis), tty_out);
350 fputs(UI_get0_action_string(uis), tty_out);
351 fflush(tty_out);
352 return read_string_inner(ui, uis,
353 UI_get_input_flags(uis) & UI_INPUT_FLAG_ECHO, 0);
9ad0f681
RL		 354 case UIT_PROMPT:
355 fputs(UI_get0_output_string(uis), tty_out);
356 fflush(tty_out);
357 return read_string_inner(ui, uis,
b589977b 358 UI_get_input_flags(uis) & UI_INPUT_FLAG_ECHO, 1);
9ad0f681 359 case UIT_VERIFY:
200bc9e3 360 fprintf(tty_out,"Verifying - %s",
a63d5eaa 361 UI_get0_output_string(uis));
200bc9e3 362 fflush(tty_out);
9ad0f681 363 if ((ok = read_string_inner(ui, uis,
b589977b 364 UI_get_input_flags(uis) & UI_INPUT_FLAG_ECHO, 1)) <= 0)
9ad0f681 365 return ok;
a63d5eaa
RL		 366 if (strcmp(UI_get0_result_string(uis),
367 UI_get0_test_string(uis)) != 0)
368 {
200bc9e3
BM		 369 fprintf(tty_out,"Verify failure\n");
370 fflush(tty_out);
a63d5eaa
RL		 371 return 0;
372 }
373 break;
a63d5eaa 374 default:
a63d5eaa
RL		 375 break;
376 }
377 return 1;
378 }
379
380
0bf23d9b 381#if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE)
a63d5eaa
RL		 382/* Internal functions to read a string without echoing */
383static void read_till_nl(FILE *in)
384 {
385#define SIZE 4
386 char buf[SIZE+1];
387
388 do {
389 fgets(buf,SIZE,in);
390 } while (strchr(buf,'\n') == NULL);
391 }
392
94960c84 393static volatile sig_atomic_t intr_signal;
0bf23d9b 394#endif
7c517a04 395
b589977b 396static int read_string_inner(UI *ui, UI_STRING *uis, int echo, int strip_nl)
a63d5eaa
RL		 397 {
398 static int ps;
399 int ok;
b589977b 400 char result[BUFSIZ];
a63d5eaa 401 int maxsize = BUFSIZ-1;
0bf23d9b 402#if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE)
b589977b 403 char *p;
a63d5eaa 404
7c517a04 405 intr_signal=0;
a63d5eaa
RL		 406 ok=0;
407 ps=0;
408
409 pushsig();
410 ps=1;
411
7c517a04
BL		 412 if (!echo && !noecho_console(ui))
413 goto error;
a63d5eaa
RL		 414 ps=2;
415
b589977b 416 result[0]='\0';
02790299 417#ifdef OPENSSL_SYS_MSDOS
b589977b 418 if (!echo)
7c517a04 419 {
b589977b 420 noecho_fgets(result,maxsize,tty_in);
7c517a04
BL		 421 p=result; /* FIXME: noecho_fgets doesn't return errors */
422 }
b589977b 423 else
7c517a04 424 p=fgets(result,maxsize,tty_in);
b589977b 425#else
7c517a04 426 p=fgets(result,maxsize,tty_in);
02790299 427#endif
7c517a04
BL		 428 if(!p)
429 goto error;
b589977b
RL		 430 if (feof(tty_in)) goto error;
431 if (ferror(tty_in)) goto error;
432 if ((p=(char *)strchr(result,'\n')) != NULL)
433 {
434 if (strip_nl)
a63d5eaa 435 *p='\0';
a63d5eaa 436 }
b589977b
RL		 437 else
438 read_till_nl(tty_in);
439 if (UI_set_result(ui, uis, result) >= 0)
440 ok=1;
a63d5eaa
RL		 441
442error:
7c517a04
BL		 443 if (intr_signal == SIGINT)
444 ok=-1;
200bc9e3 445 if (!echo) fprintf(tty_out,"\n");
7c517a04
BL		 446 if (ps >= 2 && !echo && !echo_console(ui))
447 ok=0;
a63d5eaa
RL		 448
449 if (ps >= 1)
450 popsig();
451#else
a63d5eaa
RL		 452 ok=1;
453#endif
454
4579924b 455 OPENSSL_cleanse(result,BUFSIZ);
a63d5eaa
RL		 456 return ok;
457 }
458
459
460/* Internal functions to open, handle and close a channel to the console. */
461static int open_console(UI *ui)
462 {
463 CRYPTO_w_lock(CRYPTO_LOCK_UI);
464 is_a_tty = 1;
465
6a89a25c 466#if defined(OPENSSL_SYS_MACINTOSH_CLASSIC) || defined(OPENSSL_SYS_VXWORKS)
200bc9e3
BM		 467 tty_in=stdin;
468 tty_out=stderr;
a63d5eaa 469#else
508f15cd
BM		 470# ifdef OPENSSL_SYS_MSDOS
471# define DEV_TTY "con"
472# else
473# define DEV_TTY "/dev/tty"
474# endif
475 if ((tty_in=fopen(DEV_TTY,"r")) == NULL)
200bc9e3 476 tty_in=stdin;
508f15cd 477 if ((tty_out=fopen(DEV_TTY,"w")) == NULL)
200bc9e3 478 tty_out=stderr;
a63d5eaa
RL		 479#endif
480
c5597592 481#if defined(TTY_get) && !defined(OPENSSL_SYS_VMS)
2ee67f1d 482 if (TTY_get(fileno(tty_in),&tty_orig) == -1)
a63d5eaa
RL		 483 {
484#ifdef ENOTTY
485 if (errno == ENOTTY)
486 is_a_tty=0;
487 else
488#endif
489#ifdef EINVAL
490 /* Ariel Glenn ariel@columbia.edu reports that solaris
491 * can return EINVAL instead. This should be ok */
492 if (errno == EINVAL)
493 is_a_tty=0;
494 else
495#endif
496 return 0;
497 }
498#endif
02790299 499#ifdef OPENSSL_SYS_VMS
a63d5eaa
RL		 500 status = sys$assign(&terminal,&channel,0,0);
501 if (status != SS$_NORMAL)
502 return 0;
503 status=sys$qiow(0,channel,IO$_SENSEMODE,&iosb,0,0,tty_orig,12,0,0,0,0);
504 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
505 return 0;
506#endif
507 return 1;
508 }
509
510static int noecho_console(UI *ui)
511 {
512#ifdef TTY_FLAGS
513 memcpy(&(tty_new),&(tty_orig),sizeof(tty_orig));
514 tty_new.TTY_FLAGS &= ~ECHO;
515#endif
516
02790299 517#if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
200bc9e3 518 if (is_a_tty && (TTY_set(fileno(tty_in),&tty_new) == -1))
a63d5eaa
RL		 519 return 0;
520#endif
02790299 521#ifdef OPENSSL_SYS_VMS
a63d5eaa
RL		 522 tty_new[0] = tty_orig[0];
523 tty_new[1] = tty_orig[1] | TT$M_NOECHO;
524 tty_new[2] = tty_orig[2];
525 status = sys$qiow(0,channel,IO$_SETMODE,&iosb,0,0,tty_new,12,0,0,0,0);
526 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
527 return 0;
528#endif
529 return 1;
530 }
531
532static int echo_console(UI *ui)
533 {
02790299 534#if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
a63d5eaa
RL		 535 memcpy(&(tty_new),&(tty_orig),sizeof(tty_orig));
536 tty_new.TTY_FLAGS |= ECHO;
537#endif
538
02790299 539#if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
200bc9e3 540 if (is_a_tty && (TTY_set(fileno(tty_in),&tty_new) == -1))
a63d5eaa
RL		 541 return 0;
542#endif
02790299 543#ifdef OPENSSL_SYS_VMS
a63d5eaa
RL		 544 tty_new[0] = tty_orig[0];
545 tty_new[1] = tty_orig[1] & ~TT$M_NOECHO;
546 tty_new[2] = tty_orig[2];
547 status = sys$qiow(0,channel,IO$_SETMODE,&iosb,0,0,tty_new,12,0,0,0,0);
548 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
549 return 0;
550#endif
551 return 1;
552 }
553
554static int close_console(UI *ui)
555 {
caa7b2ad 556 if (tty_in != stdin) fclose(tty_in);
200bc9e3 557 if (tty_out != stderr) fclose(tty_out);
02790299 558#ifdef OPENSSL_SYS_VMS
a63d5eaa
RL		 559 status = sys$dassgn(channel);
560#endif
561 CRYPTO_w_unlock(CRYPTO_LOCK_UI);
562
563 return 1;
564 }
565
566
0bf23d9b 567#if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE)
a63d5eaa
RL		 568/* Internal functions to handle signals and act on them */
569static void pushsig(void)
570 {
571 int i;
572#ifdef SIGACTION
573 struct sigaction sa;
574
575 memset(&sa,0,sizeof sa);
576 sa.sa_handler=recsig;
577#endif
578
579 for (i=1; i<NX509_SIG; i++)
580 {
581#ifdef SIGUSR1
582 if (i == SIGUSR1)
583 continue;
584#endif
585#ifdef SIGUSR2
586 if (i == SIGUSR2)
587 continue;
588#endif
589#ifdef SIGKILL
590 if (i == SIGKILL) /* We can't make any action on that. */
591 continue;
592#endif
593#ifdef SIGACTION
594 sigaction(i,&sa,&savsig[i]);
595#else
596 savsig[i]=signal(i,recsig);
597#endif
598 }
599
600#ifdef SIGWINCH
601 signal(SIGWINCH,SIG_DFL);
602#endif
603 }
604
605static void popsig(void)
606 {
607 int i;
608
609 for (i=1; i<NX509_SIG; i++)
610 {
611#ifdef SIGUSR1
612 if (i == SIGUSR1)
613 continue;
614#endif
615#ifdef SIGUSR2
616 if (i == SIGUSR2)
617 continue;
618#endif
619#ifdef SIGACTION
620 sigaction(i,&savsig[i],NULL);
621#else
622 signal(i,savsig[i]);
623#endif
624 }
625 }
626
627static void recsig(int i)
628 {
7c517a04 629 intr_signal=i;
a63d5eaa 630 }
0bf23d9b 631#endif
a63d5eaa 632
a63d5eaa 633/* Internal functions specific for Windows */
0bf23d9b 634#if defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE)
a63d5eaa
RL		 635static int noecho_fgets(char *buf, int size, FILE *tty)
636 {
637 int i;
638 char *p;
639
640 p=buf;
641 for (;;)
642 {
643 if (size == 0)
644 {
645 *p='\0';
646 break;
647 }
648 size--;
649#ifdef WIN16TTY
650 i=_inchar();
651#else
652 i=getch();
653#endif
654 if (i == '\r') i='\n';
655 *(p++)=i;
656 if (i == '\n')
657 {
658 *p='\0';
659 break;
660 }
661 }
662#ifdef WIN_CONSOLE_BUG
663/* Win95 has several evil console bugs: one of these is that the
664 * last character read using getch() is passed to the next read: this is
665 * usually a CR so this can be trouble. No STDIO fix seems to work but
666 * flushing the console appears to do the trick.
667 */
668 {
669 HANDLE inh;
670 inh = GetStdHandle(STD_INPUT_HANDLE);
671 FlushConsoleInputBuffer(inh);
672 }
673#endif
674 return(strlen(buf));
675 }
676#endif
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