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[thirdparty/openssl.git] / crypto / ui / ui_openssl.c
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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
3a83462d
MC		 59/*-
60 * The lowest level part of this file was previously in crypto/des/read_pwd.c,
02790299
RL		 61 * Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
62 * All rights reserved.
63 *
64 * This package is an SSL implementation written
65 * by Eric Young (eay@cryptsoft.com).
66 * The implementation was written so as to conform with Netscapes SSL.
67 *
68 * This library is free for commercial and non-commercial use as long as
69 * the following conditions are aheared to. The following conditions
70 * apply to all code found in this distribution, be it the RC4, RSA,
71 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
72 * included with this distribution is covered by the same copyright terms
73 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
74 *
75 * Copyright remains Eric Young's, and as such any Copyright notices in
76 * the code are not to be removed.
77 * If this package is used in a product, Eric Young should be given attribution
78 * as the author of the parts of the library used.
79 * This can be in the form of a textual message at program startup or
80 * in documentation (online or textual) provided with the package.
81 *
82 * Redistribution and use in source and binary forms, with or without
83 * modification, are permitted provided that the following conditions
84 * are met:
85 * 1. Redistributions of source code must retain the copyright
86 * notice, this list of conditions and the following disclaimer.
87 * 2. Redistributions in binary form must reproduce the above copyright
88 * notice, this list of conditions and the following disclaimer in the
89 * documentation and/or other materials provided with the distribution.
90 * 3. All advertising materials mentioning features or use of this software
91 * must display the following acknowledgement:
92 * "This product includes cryptographic software written by
93 * Eric Young (eay@cryptsoft.com)"
94 * The word 'cryptographic' can be left out if the rouines from the library
95 * being used are not cryptographic related :-).
96 * 4. If you include any Windows specific code (or a derivative thereof) from
97 * the apps directory (application code) you must include an acknowledgement:
98 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
99 *
100 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
101 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
102 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
103 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
104 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
105 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
106 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
107 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
108 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
109 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
110 * SUCH DAMAGE.
111 *
112 * The licence and distribution terms for any publically available version or
113 * derivative of this code cannot be changed. i.e. this code cannot simply be
114 * copied and put under another distribution licence
115 * [including the GNU Public Licence.]
116 */
117
118
7babdf20 119#include <openssl/e_os2.h>
02790299 120
6df617a5
AP		 121/* need for #define _POSIX_C_SOURCE arises whenever you pass -ansi to gcc
122 * [maybe others?], because it masks interfaces not discussed in standard,
123 * sigaction and fileno included. -pedantic would be more appropriate for
124 * the intended purposes, but we can't prevent users from adding -ansi.
125 */
ffbfbef9
DSH		 126#if defined(OPENSSL_SYSNAME_VXWORKS)
127#include <sys/types.h>
128#endif
129
fc7dae52 130#if !defined(_POSIX_C_SOURCE) && defined(OPENSSL_SYS_VMS)
83d8fa7d
DSH		 131#ifndef _POSIX_C_SOURCE
132#define _POSIX_C_SOURCE 2
133#endif
fc7dae52 134#endif
2ee67f1d
RL		 135#include <signal.h>
136#include <stdio.h>
2ee67f1d
RL		 137#include <string.h>
138#include <errno.h>
139
02790299
RL		 140#if !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS)
141# ifdef OPENSSL_UNISTD
142# include OPENSSL_UNISTD
143# else
144# include <unistd.h>
145# endif
a63d5eaa
RL		 146/* If unistd.h defines _POSIX_VERSION, we conclude that we
147 * are on a POSIX system and have sigaction and termios. */
02790299 148# if defined(_POSIX_VERSION)
a63d5eaa 149
02790299
RL		 150# define SIGACTION
151# if !defined(TERMIOS) && !defined(TERMIO) && !defined(SGTTY)
152# define TERMIOS
153# endif
a63d5eaa 154
02790299 155# endif
a63d5eaa 156#endif
a63d5eaa 157
a63d5eaa
RL		 158/* 06-Apr-92 Luke Brennan Support for VMS */
159#include "ui_locl.h"
160#include "cryptlib.h"
a63d5eaa 161
02790299
RL		 162#ifdef OPENSSL_SYS_VMS /* prototypes for sys$whatever */
163# include <starlet.h>
164# ifdef __DECC
165# pragma message disable DOLLARID
166# endif
a63d5eaa
RL		 167#endif
168
169#ifdef WIN_CONSOLE_BUG
02790299 170# include <windows.h>
0bf23d9b 171#ifndef OPENSSL_SYS_WINCE
02790299 172# include <wincon.h>
a63d5eaa 173#endif
0bf23d9b 174#endif
a63d5eaa
RL		 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)
02790299
RL		 182# define TERMIOS
183# undef TERMIO
184# undef SGTTY
a63d5eaa
RL		 185#endif
186
187#if defined(linux) && !defined(TERMIO)
02790299
RL		 188# undef TERMIOS
189# define TERMIO
190# undef SGTTY
a63d5eaa
RL		 191#endif
192
193#ifdef _LIBC
02790299
RL		 194# undef TERMIOS
195# define TERMIO
196# undef SGTTY
a63d5eaa
RL		 197#endif
198
92c78463 199#if !defined(TERMIO) && !defined(TERMIOS) && !defined(OPENSSL_SYS_VMS) && !defined(OPENSSL_SYS_MSDOS) && !defined(MAC_OS_GUSI_SOURCE)
02790299
RL		 200# undef TERMIOS
201# undef TERMIO
202# define SGTTY
a63d5eaa
RL		 203#endif
204
6a89a25c 205#if defined(OPENSSL_SYS_VXWORKS)
3e83e686
RL		 206#undef TERMIOS
207#undef TERMIO
208#undef SGTTY
209#endif
210
4d8743f4
RL		 211#if defined(OPENSSL_SYS_NETWARE)
212#undef TERMIOS
213#undef TERMIO
214#undef SGTTY
215#endif
216
a63d5eaa 217#ifdef TERMIOS
02790299
RL		 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)
a63d5eaa
RL		 223#endif
224
225#ifdef TERMIO
02790299
RL		 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)
a63d5eaa
RL		 231#endif
232
233#ifdef SGTTY
02790299
RL		 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)
a63d5eaa
RL		 239#endif
240
f2319414 241#if !defined(_LIBC) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS)
02790299 242# include <sys/ioctl.h>
a63d5eaa
RL		 243#endif
244
02790299
RL		 245#ifdef OPENSSL_SYS_MSDOS
246# include <conio.h>
a63d5eaa
RL		 247#endif
248
02790299
RL		 249#ifdef OPENSSL_SYS_VMS
250# include <ssdef.h>
251# include <iodef.h>
252# include <ttdef.h>
253# include <descrip.h>
a63d5eaa
RL		 254struct IOSB {
255 short iosb$w_value;
256 short iosb$w_count;
257 long iosb$l_info;
258 };
259#endif
260
92c78463 261#if defined(MAC_OS_GUSI_SOURCE) || defined(OPENSSL_SYS_NETWARE)
a63d5eaa
RL		 262/*
263 * This one needs work. As a matter of fact the code is unoperational
264 * and this is only a trick to get it compiled.
265 * <appro@fy.chalmers.se>
266 */
02790299 267# define TTY_STRUCT int
a63d5eaa
RL		 268#endif
269
270#ifndef NX509_SIG
02790299 271# define NX509_SIG 32
a63d5eaa
RL		 272#endif
273
274
275/* Define globals. They are protected by a lock */
276#ifdef SIGACTION
277static struct sigaction savsig[NX509_SIG];
278#else
279static void (*savsig[NX509_SIG])(int );
280#endif
a63d5eaa 281
02790299 282#ifdef OPENSSL_SYS_VMS
a63d5eaa
RL		 283static struct IOSB iosb;
284static $DESCRIPTOR(terminal,"TT");
200bc9e3 285static long tty_orig[3], tty_new[3]; /* XXX Is there any guarantee that this will always suffice for the actual structures? */
a63d5eaa
RL		 286static long status;
287static unsigned short channel = 0;
288#else
f642ebc1 289#if !defined(OPENSSL_SYS_MSDOS) || defined(__DJGPP__)
a63d5eaa
RL		 290static TTY_STRUCT tty_orig,tty_new;
291#endif
292#endif
200bc9e3 293static FILE *tty_in, *tty_out;
a63d5eaa
RL		 294static int is_a_tty;
295
296/* Declare static functions */
6d23cf97 297#if !defined(OPENSSL_SYS_WINCE)
0e039aa7 298static int read_till_nl(FILE *);
a63d5eaa
RL		 299static void recsig(int);
300static void pushsig(void);
301static void popsig(void);
0bf23d9b 302#endif
6d23cf97 303#if defined(OPENSSL_SYS_MSDOS)
a63d5eaa
RL		 304static int noecho_fgets(char *buf, int size, FILE *tty);
305#endif
b589977b 306static int read_string_inner(UI *ui, UI_STRING *uis, int echo, int strip_nl);
a63d5eaa
RL		 307
308static int read_string(UI *ui, UI_STRING *uis);
9ad0f681 309static int write_string(UI *ui, UI_STRING *uis);
a63d5eaa
RL		 310
311static int open_console(UI *ui);
312static int echo_console(UI *ui);
313static int noecho_console(UI *ui);
314static int close_console(UI *ui);
315
316static UI_METHOD ui_openssl =
317 {
318 "OpenSSL default user interface",
319 open_console,
9ad0f681
RL		 320 write_string,
321 NULL, /* No flusher is needed for command lines */
a63d5eaa 322 read_string,
a63d5eaa 323 close_console,
9ad0f681 324 NULL
a63d5eaa
RL		 325 };
326
327/* The method with all the built-in thingies */
328UI_METHOD *UI_OpenSSL(void)
329 {
330 return &ui_openssl;
331 }
332
9ad0f681
RL		 333/* The following function makes sure that info and error strings are printed
334 before any prompt. */
335static int write_string(UI *ui, UI_STRING *uis)
a63d5eaa
RL		 336 {
337 switch (UI_get_string_type(uis))
338 {
b589977b
RL		 339 case UIT_ERROR:
340 case UIT_INFO:
9ad0f681 341 fputs(UI_get0_output_string(uis), tty_out);
200bc9e3 342 fflush(tty_out);
a63d5eaa 343 break;
b589977b
RL		 344 default:
345 break;
9ad0f681
RL		 346 }
347 return 1;
348 }
349
350static int read_string(UI *ui, UI_STRING *uis)
351 {
352 int ok = 0;
353
354 switch (UI_get_string_type(uis))
355 {
b589977b
RL		 356 case UIT_BOOLEAN:
357 fputs(UI_get0_output_string(uis), tty_out);
358 fputs(UI_get0_action_string(uis), tty_out);
359 fflush(tty_out);
360 return read_string_inner(ui, uis,
361 UI_get_input_flags(uis) & UI_INPUT_FLAG_ECHO, 0);
9ad0f681
RL		 362 case UIT_PROMPT:
363 fputs(UI_get0_output_string(uis), tty_out);
364 fflush(tty_out);
365 return read_string_inner(ui, uis,
b589977b 366 UI_get_input_flags(uis) & UI_INPUT_FLAG_ECHO, 1);
9ad0f681 367 case UIT_VERIFY:
200bc9e3 368 fprintf(tty_out,"Verifying - %s",
a63d5eaa 369 UI_get0_output_string(uis));
200bc9e3 370 fflush(tty_out);
9ad0f681 371 if ((ok = read_string_inner(ui, uis,
b589977b 372 UI_get_input_flags(uis) & UI_INPUT_FLAG_ECHO, 1)) <= 0)
9ad0f681 373 return ok;
a63d5eaa
RL		 374 if (strcmp(UI_get0_result_string(uis),
375 UI_get0_test_string(uis)) != 0)
376 {
200bc9e3
BM		 377 fprintf(tty_out,"Verify failure\n");
378 fflush(tty_out);
a63d5eaa
RL		 379 return 0;
380 }
381 break;
a63d5eaa 382 default:
a63d5eaa
RL		 383 break;
384 }
385 return 1;
386 }
387
388
6d23cf97 389#if !defined(OPENSSL_SYS_WINCE)
a63d5eaa 390/* Internal functions to read a string without echoing */
0e039aa7 391static int read_till_nl(FILE *in)
a63d5eaa
RL		 392 {
393#define SIZE 4
394 char buf[SIZE+1];
395
396 do {
0e039aa7
DSH		 397 if (!fgets(buf,SIZE,in))
398 return 0;
a63d5eaa 399 } while (strchr(buf,'\n') == NULL);
0e039aa7 400 return 1;
a63d5eaa
RL		 401 }
402
94960c84 403static volatile sig_atomic_t intr_signal;
0bf23d9b 404#endif
7c517a04 405
b589977b 406static int read_string_inner(UI *ui, UI_STRING *uis, int echo, int strip_nl)
a63d5eaa
RL		 407 {
408 static int ps;
409 int ok;
b589977b 410 char result[BUFSIZ];
a63d5eaa 411 int maxsize = BUFSIZ-1;
6d23cf97 412#if !defined(OPENSSL_SYS_WINCE)
b589977b 413 char *p;
a63d5eaa 414
7c517a04 415 intr_signal=0;
a63d5eaa
RL		 416 ok=0;
417 ps=0;
418
419 pushsig();
420 ps=1;
421
7c517a04
BL		 422 if (!echo && !noecho_console(ui))
423 goto error;
a63d5eaa
RL		 424 ps=2;
425
b589977b 426 result[0]='\0';
02790299 427#ifdef OPENSSL_SYS_MSDOS
b589977b 428 if (!echo)
7c517a04 429 {
b589977b 430 noecho_fgets(result,maxsize,tty_in);
7c517a04
BL		 431 p=result; /* FIXME: noecho_fgets doesn't return errors */
432 }
b589977b 433 else
7c517a04 434 p=fgets(result,maxsize,tty_in);
b589977b 435#else
7c517a04 436 p=fgets(result,maxsize,tty_in);
02790299 437#endif
7c517a04
BL		 438 if(!p)
439 goto error;
b589977b
RL		 440 if (feof(tty_in)) goto error;
441 if (ferror(tty_in)) goto error;
442 if ((p=(char *)strchr(result,'\n')) != NULL)
443 {
444 if (strip_nl)
a63d5eaa 445 *p='\0';
a63d5eaa 446 }
b589977b 447 else
0e039aa7
DSH		 448 if (!read_till_nl(tty_in))
449 goto error;
b589977b
RL		 450 if (UI_set_result(ui, uis, result) >= 0)
451 ok=1;
a63d5eaa
RL		 452
453error:
7c517a04
BL		 454 if (intr_signal == SIGINT)
455 ok=-1;
200bc9e3 456 if (!echo) fprintf(tty_out,"\n");
7c517a04
BL		 457 if (ps >= 2 && !echo && !echo_console(ui))
458 ok=0;
a63d5eaa
RL		 459
460 if (ps >= 1)
461 popsig();
462#else
a63d5eaa
RL		 463 ok=1;
464#endif
465
4579924b 466 OPENSSL_cleanse(result,BUFSIZ);
a63d5eaa
RL		 467 return ok;
468 }
469
470
471/* Internal functions to open, handle and close a channel to the console. */
472static int open_console(UI *ui)
473 {
474 CRYPTO_w_lock(CRYPTO_LOCK_UI);
475 is_a_tty = 1;
476
b317819b 477#if defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_NETWARE)
200bc9e3
BM		 478 tty_in=stdin;
479 tty_out=stderr;
a63d5eaa 480#else
508f15cd
BM		 481# ifdef OPENSSL_SYS_MSDOS
482# define DEV_TTY "con"
483# else
484# define DEV_TTY "/dev/tty"
485# endif
486 if ((tty_in=fopen(DEV_TTY,"r")) == NULL)
200bc9e3 487 tty_in=stdin;
508f15cd 488 if ((tty_out=fopen(DEV_TTY,"w")) == NULL)
200bc9e3 489 tty_out=stderr;
a63d5eaa
RL		 490#endif
491
c5597592 492#if defined(TTY_get) && !defined(OPENSSL_SYS_VMS)
2ee67f1d 493 if (TTY_get(fileno(tty_in),&tty_orig) == -1)
a63d5eaa
RL		 494 {
495#ifdef ENOTTY
496 if (errno == ENOTTY)
497 is_a_tty=0;
498 else
499#endif
500#ifdef EINVAL
501 /* Ariel Glenn ariel@columbia.edu reports that solaris
502 * can return EINVAL instead. This should be ok */
503 if (errno == EINVAL)
504 is_a_tty=0;
505 else
506#endif
507 return 0;
508 }
509#endif
02790299 510#ifdef OPENSSL_SYS_VMS
a63d5eaa
RL		 511 status = sys$assign(&terminal,&channel,0,0);
512 if (status != SS$_NORMAL)
513 return 0;
514 status=sys$qiow(0,channel,IO$_SENSEMODE,&iosb,0,0,tty_orig,12,0,0,0,0);
515 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
516 return 0;
517#endif
518 return 1;
519 }
520
521static int noecho_console(UI *ui)
522 {
523#ifdef TTY_FLAGS
524 memcpy(&(tty_new),&(tty_orig),sizeof(tty_orig));
525 tty_new.TTY_FLAGS &= ~ECHO;
526#endif
527
02790299 528#if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
200bc9e3 529 if (is_a_tty && (TTY_set(fileno(tty_in),&tty_new) == -1))
a63d5eaa
RL		 530 return 0;
531#endif
02790299 532#ifdef OPENSSL_SYS_VMS
a63d5eaa
RL		 533 tty_new[0] = tty_orig[0];
534 tty_new[1] = tty_orig[1] | TT$M_NOECHO;
535 tty_new[2] = tty_orig[2];
536 status = sys$qiow(0,channel,IO$_SETMODE,&iosb,0,0,tty_new,12,0,0,0,0);
537 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
538 return 0;
539#endif
540 return 1;
541 }
542
543static int echo_console(UI *ui)
544 {
02790299 545#if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
a63d5eaa
RL		 546 memcpy(&(tty_new),&(tty_orig),sizeof(tty_orig));
547 tty_new.TTY_FLAGS |= ECHO;
548#endif
549
02790299 550#if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
200bc9e3 551 if (is_a_tty && (TTY_set(fileno(tty_in),&tty_new) == -1))
a63d5eaa
RL		 552 return 0;
553#endif
02790299 554#ifdef OPENSSL_SYS_VMS
a63d5eaa
RL		 555 tty_new[0] = tty_orig[0];
556 tty_new[1] = tty_orig[1] & ~TT$M_NOECHO;
557 tty_new[2] = tty_orig[2];
558 status = sys$qiow(0,channel,IO$_SETMODE,&iosb,0,0,tty_new,12,0,0,0,0);
559 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
560 return 0;
561#endif
562 return 1;
563 }
564
565static int close_console(UI *ui)
566 {
caa7b2ad 567 if (tty_in != stdin) fclose(tty_in);
200bc9e3 568 if (tty_out != stderr) fclose(tty_out);
02790299 569#ifdef OPENSSL_SYS_VMS
a63d5eaa
RL		 570 status = sys$dassgn(channel);
571#endif
572 CRYPTO_w_unlock(CRYPTO_LOCK_UI);
573
574 return 1;
575 }
576
577
6d23cf97 578#if !defined(OPENSSL_SYS_WINCE)
a63d5eaa
RL		 579/* Internal functions to handle signals and act on them */
580static void pushsig(void)
581 {
bfa4b8c5 582#ifndef OPENSSL_SYS_WIN32
a63d5eaa 583 int i;
bfa4b8c5 584#endif
a63d5eaa
RL		 585#ifdef SIGACTION
586 struct sigaction sa;
587
588 memset(&sa,0,sizeof sa);
589 sa.sa_handler=recsig;
590#endif
591
6d00101e
AP		 592#ifdef OPENSSL_SYS_WIN32
593 savsig[SIGABRT]=signal(SIGABRT,recsig);
594 savsig[SIGFPE]=signal(SIGFPE,recsig);
595 savsig[SIGILL]=signal(SIGILL,recsig);
596 savsig[SIGINT]=signal(SIGINT,recsig);
597 savsig[SIGSEGV]=signal(SIGSEGV,recsig);
598 savsig[SIGTERM]=signal(SIGTERM,recsig);
599#else
a63d5eaa
RL		 600 for (i=1; i<NX509_SIG; i++)
601 {
602#ifdef SIGUSR1
603 if (i == SIGUSR1)
604 continue;
605#endif
606#ifdef SIGUSR2
607 if (i == SIGUSR2)
608 continue;
609#endif
610#ifdef SIGKILL
611 if (i == SIGKILL) /* We can't make any action on that. */
612 continue;
613#endif
614#ifdef SIGACTION
615 sigaction(i,&sa,&savsig[i]);
616#else
617 savsig[i]=signal(i,recsig);
618#endif
619 }
6d00101e 620#endif
a63d5eaa
RL		 621
622#ifdef SIGWINCH
623 signal(SIGWINCH,SIG_DFL);
624#endif
625 }
626
627static void popsig(void)
628 {
6d00101e
AP		 629#ifdef OPENSSL_SYS_WIN32
630 signal(SIGABRT,savsig[SIGABRT]);
631 signal(SIGFPE,savsig[SIGFPE]);
632 signal(SIGILL,savsig[SIGILL]);
633 signal(SIGINT,savsig[SIGINT]);
634 signal(SIGSEGV,savsig[SIGSEGV]);
635 signal(SIGTERM,savsig[SIGTERM]);
636#else
bfa4b8c5 637 int i;
a63d5eaa
RL		 638 for (i=1; i<NX509_SIG; i++)
639 {
640#ifdef SIGUSR1
641 if (i == SIGUSR1)
642 continue;
643#endif
644#ifdef SIGUSR2
645 if (i == SIGUSR2)
646 continue;
647#endif
648#ifdef SIGACTION
649 sigaction(i,&savsig[i],NULL);
650#else
651 signal(i,savsig[i]);
652#endif
653 }
6d00101e 654#endif
a63d5eaa
RL		 655 }
656
657static void recsig(int i)
658 {
7c517a04 659 intr_signal=i;
a63d5eaa 660 }
0bf23d9b 661#endif
a63d5eaa 662
a63d5eaa 663/* Internal functions specific for Windows */
6d23cf97 664#if defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WINCE)
a63d5eaa
RL		 665static int noecho_fgets(char *buf, int size, FILE *tty)
666 {
667 int i;
668 char *p;
669
670 p=buf;
671 for (;;)
672 {
673 if (size == 0)
674 {
675 *p='\0';
676 break;
677 }
678 size--;
6d23cf97 679#if defined(_WIN32)
e527201f 680 i=_getch();
a63d5eaa
RL		 681#else
682 i=getch();
683#endif
684 if (i == '\r') i='\n';
685 *(p++)=i;
686 if (i == '\n')
687 {
688 *p='\0';
689 break;
690 }
691 }
692#ifdef WIN_CONSOLE_BUG
693/* Win95 has several evil console bugs: one of these is that the
694 * last character read using getch() is passed to the next read: this is
695 * usually a CR so this can be trouble. No STDIO fix seems to work but
696 * flushing the console appears to do the trick.
697 */
698 {
699 HANDLE inh;
700 inh = GetStdHandle(STD_INPUT_HANDLE);
701 FlushConsoleInputBuffer(inh);
702 }
703#endif
704 return(strlen(buf));
705 }
706#endif
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