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Fix incorrect OPENSSL_assert() usage.
[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
6df617a5
AP		 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 */
ffbfbef9
DSH		 125#if defined(OPENSSL_SYSNAME_VXWORKS)
126#include <sys/types.h>
127#endif
128
fc7dae52 129#if !defined(_POSIX_C_SOURCE) && defined(OPENSSL_SYS_VMS)
83d8fa7d
DSH		 130#ifndef _POSIX_C_SOURCE
131#define _POSIX_C_SOURCE 2
132#endif
fc7dae52 133#endif
2ee67f1d
RL		 134#include <signal.h>
135#include <stdio.h>
2ee67f1d
RL		 136#include <string.h>
137#include <errno.h>
138
02790299
RL		 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
a63d5eaa
RL		 145/* If unistd.h defines _POSIX_VERSION, we conclude that we
146 * are on a POSIX system and have sigaction and termios. */
02790299 147# if defined(_POSIX_VERSION)
a63d5eaa 148
02790299
RL		 149# define SIGACTION
150# if !defined(TERMIOS) && !defined(TERMIO) && !defined(SGTTY)
151# define TERMIOS
152# endif
a63d5eaa 153
02790299 154# endif
a63d5eaa 155#endif
a63d5eaa
RL		 156
157#ifdef WIN16TTY
02790299
RL		 158# undef OPENSSL_SYS_WIN16
159# undef WIN16
160# undef _WINDOWS
161# include <graph.h>
a63d5eaa
RL		 162#endif
163
164/* 06-Apr-92 Luke Brennan Support for VMS */
165#include "ui_locl.h"
166#include "cryptlib.h"
a63d5eaa 167
02790299
RL		 168#ifdef OPENSSL_SYS_VMS /* prototypes for sys$whatever */
169# include <starlet.h>
170# ifdef __DECC
171# pragma message disable DOLLARID
172# endif
a63d5eaa
RL		 173#endif
174
175#ifdef WIN_CONSOLE_BUG
02790299 176# include <windows.h>
0bf23d9b 177#ifndef OPENSSL_SYS_WINCE
02790299 178# include <wincon.h>
a63d5eaa 179#endif
0bf23d9b 180#endif
a63d5eaa
RL		 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)
02790299
RL		 188# define TERMIOS
189# undef TERMIO
190# undef SGTTY
a63d5eaa
RL		 191#endif
192
193#if defined(linux) && !defined(TERMIO)
02790299
RL		 194# undef TERMIOS
195# define TERMIO
196# undef SGTTY
a63d5eaa
RL		 197#endif
198
199#ifdef _LIBC
02790299
RL		 200# undef TERMIOS
201# define TERMIO
202# undef SGTTY
a63d5eaa
RL		 203#endif
204
92c78463 205#if !defined(TERMIO) && !defined(TERMIOS) && !defined(OPENSSL_SYS_VMS) && !defined(OPENSSL_SYS_MSDOS) && !defined(MAC_OS_GUSI_SOURCE)
02790299
RL		 206# undef TERMIOS
207# undef TERMIO
208# define SGTTY
a63d5eaa
RL		 209#endif
210
6a89a25c 211#if defined(OPENSSL_SYS_VXWORKS)
3e83e686
RL		 212#undef TERMIOS
213#undef TERMIO
214#undef SGTTY
215#endif
216
4d8743f4
RL		 217#if defined(OPENSSL_SYS_NETWARE)
218#undef TERMIOS
219#undef TERMIO
220#undef SGTTY
221#endif
222
a63d5eaa 223#ifdef TERMIOS
02790299
RL		 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)
a63d5eaa
RL		 229#endif
230
231#ifdef TERMIO
02790299
RL		 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)
a63d5eaa
RL		 237#endif
238
239#ifdef SGTTY
02790299
RL		 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)
a63d5eaa
RL		 245#endif
246
92c78463 247#if !defined(_LIBC) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS) && !defined(OPENSSL_SYS_SUNOS)
02790299 248# include <sys/ioctl.h>
a63d5eaa
RL		 249#endif
250
02790299
RL		 251#ifdef OPENSSL_SYS_MSDOS
252# include <conio.h>
a63d5eaa
RL		 253#endif
254
02790299
RL		 255#ifdef OPENSSL_SYS_VMS
256# include <ssdef.h>
257# include <iodef.h>
258# include <ttdef.h>
259# include <descrip.h>
a63d5eaa
RL		 260struct IOSB {
261 short iosb$w_value;
262 short iosb$w_count;
263 long iosb$l_info;
264 };
265#endif
266
0709385d
RL		 267#ifdef OPENSSL_SYS_SUNOS
268 typedef int sig_atomic_t;
269#endif
270
92c78463 271#if defined(MAC_OS_GUSI_SOURCE) || defined(OPENSSL_SYS_NETWARE)
a63d5eaa
RL		 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 */
02790299 277# define TTY_STRUCT int
a63d5eaa
RL		 278#endif
279
280#ifndef NX509_SIG
02790299 281# define NX509_SIG 32
a63d5eaa
RL		 282#endif
283
284
285/* Define globals. They are protected by a lock */
286#ifdef SIGACTION
287static struct sigaction savsig[NX509_SIG];
288#else
289static void (*savsig[NX509_SIG])(int );
290#endif
a63d5eaa 291
02790299 292#ifdef OPENSSL_SYS_VMS
a63d5eaa
RL		 293static struct IOSB iosb;
294static $DESCRIPTOR(terminal,"TT");
200bc9e3 295static long tty_orig[3], tty_new[3]; /* XXX Is there any guarantee that this will always suffice for the actual structures? */
a63d5eaa
RL		 296static long status;
297static unsigned short channel = 0;
298#else
f642ebc1 299#if !defined(OPENSSL_SYS_MSDOS) || defined(__DJGPP__)
a63d5eaa
RL		 300static TTY_STRUCT tty_orig,tty_new;
301#endif
302#endif
200bc9e3 303static FILE *tty_in, *tty_out;
a63d5eaa
RL		 304static int is_a_tty;
305
306/* Declare static functions */
0bf23d9b 307#if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE)
0e039aa7 308static int read_till_nl(FILE *);
a63d5eaa
RL		 309static void recsig(int);
310static void pushsig(void);
311static void popsig(void);
0bf23d9b 312#endif
29fb08c2 313#if defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN16)
a63d5eaa
RL		 314static int noecho_fgets(char *buf, int size, FILE *tty);
315#endif
b589977b 316static int read_string_inner(UI *ui, UI_STRING *uis, int echo, int strip_nl);
a63d5eaa
RL		 317
318static int read_string(UI *ui, UI_STRING *uis);
9ad0f681 319static int write_string(UI *ui, UI_STRING *uis);
a63d5eaa
RL		 320
321static int open_console(UI *ui);
322static int echo_console(UI *ui);
323static int noecho_console(UI *ui);
324static int close_console(UI *ui);
325
326static UI_METHOD ui_openssl =
327 {
328 "OpenSSL default user interface",
329 open_console,
9ad0f681
RL		 330 write_string,
331 NULL, /* No flusher is needed for command lines */
a63d5eaa 332 read_string,
a63d5eaa 333 close_console,
9ad0f681 334 NULL
a63d5eaa
RL		 335 };
336
337/* The method with all the built-in thingies */
338UI_METHOD *UI_OpenSSL(void)
339 {
340 return &ui_openssl;
341 }
342
9ad0f681
RL		 343/* The following function makes sure that info and error strings are printed
344 before any prompt. */
345static int write_string(UI *ui, UI_STRING *uis)
a63d5eaa
RL		 346 {
347 switch (UI_get_string_type(uis))
348 {
b589977b
RL		 349 case UIT_ERROR:
350 case UIT_INFO:
9ad0f681 351 fputs(UI_get0_output_string(uis), tty_out);
200bc9e3 352 fflush(tty_out);
a63d5eaa 353 break;
b589977b
RL		 354 default:
355 break;
9ad0f681
RL		 356 }
357 return 1;
358 }
359
360static int read_string(UI *ui, UI_STRING *uis)
361 {
362 int ok = 0;
363
364 switch (UI_get_string_type(uis))
365 {
b589977b
RL		 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);
9ad0f681
RL		 372 case UIT_PROMPT:
373 fputs(UI_get0_output_string(uis), tty_out);
374 fflush(tty_out);
375 return read_string_inner(ui, uis,
b589977b 376 UI_get_input_flags(uis) & UI_INPUT_FLAG_ECHO, 1);
9ad0f681 377 case UIT_VERIFY:
200bc9e3 378 fprintf(tty_out,"Verifying - %s",
a63d5eaa 379 UI_get0_output_string(uis));
200bc9e3 380 fflush(tty_out);
9ad0f681 381 if ((ok = read_string_inner(ui, uis,
b589977b 382 UI_get_input_flags(uis) & UI_INPUT_FLAG_ECHO, 1)) <= 0)
9ad0f681 383 return ok;
a63d5eaa
RL		 384 if (strcmp(UI_get0_result_string(uis),
385 UI_get0_test_string(uis)) != 0)
386 {
200bc9e3
BM		 387 fprintf(tty_out,"Verify failure\n");
388 fflush(tty_out);
a63d5eaa
RL		 389 return 0;
390 }
391 break;
a63d5eaa 392 default:
a63d5eaa
RL		 393 break;
394 }
395 return 1;
396 }
397
398
0bf23d9b 399#if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE)
a63d5eaa 400/* Internal functions to read a string without echoing */
0e039aa7 401static int read_till_nl(FILE *in)
a63d5eaa
RL		 402 {
403#define SIZE 4
404 char buf[SIZE+1];
405
406 do {
0e039aa7
DSH		 407 if (!fgets(buf,SIZE,in))
408 return 0;
a63d5eaa 409 } while (strchr(buf,'\n') == NULL);
0e039aa7 410 return 1;
a63d5eaa
RL		 411 }
412
94960c84 413static volatile sig_atomic_t intr_signal;
0bf23d9b 414#endif
7c517a04 415
b589977b 416static int read_string_inner(UI *ui, UI_STRING *uis, int echo, int strip_nl)
a63d5eaa
RL		 417 {
418 static int ps;
419 int ok;
b589977b 420 char result[BUFSIZ];
a63d5eaa 421 int maxsize = BUFSIZ-1;
0bf23d9b 422#if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE)
b589977b 423 char *p;
a63d5eaa 424
7c517a04 425 intr_signal=0;
a63d5eaa
RL		 426 ok=0;
427 ps=0;
428
429 pushsig();
430 ps=1;
431
7c517a04
BL		 432 if (!echo && !noecho_console(ui))
433 goto error;
a63d5eaa
RL		 434 ps=2;
435
b589977b 436 result[0]='\0';
02790299 437#ifdef OPENSSL_SYS_MSDOS
b589977b 438 if (!echo)
7c517a04 439 {
b589977b 440 noecho_fgets(result,maxsize,tty_in);
7c517a04
BL		 441 p=result; /* FIXME: noecho_fgets doesn't return errors */
442 }
b589977b 443 else
7c517a04 444 p=fgets(result,maxsize,tty_in);
b589977b 445#else
7c517a04 446 p=fgets(result,maxsize,tty_in);
02790299 447#endif
7c517a04
BL		 448 if(!p)
449 goto error;
b589977b
RL		 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)
a63d5eaa 455 *p='\0';
a63d5eaa 456 }
b589977b 457 else
0e039aa7
DSH		 458 if (!read_till_nl(tty_in))
459 goto error;
b589977b
RL		 460 if (UI_set_result(ui, uis, result) >= 0)
461 ok=1;
a63d5eaa
RL		 462
463error:
7c517a04
BL		 464 if (intr_signal == SIGINT)
465 ok=-1;
200bc9e3 466 if (!echo) fprintf(tty_out,"\n");
7c517a04
BL		 467 if (ps >= 2 && !echo && !echo_console(ui))
468 ok=0;
a63d5eaa
RL		 469
470 if (ps >= 1)
471 popsig();
472#else
a63d5eaa
RL		 473 ok=1;
474#endif
475
4579924b 476 OPENSSL_cleanse(result,BUFSIZ);
a63d5eaa
RL		 477 return ok;
478 }
479
480
481/* Internal functions to open, handle and close a channel to the console. */
482static int open_console(UI *ui)
483 {
484 CRYPTO_w_lock(CRYPTO_LOCK_UI);
485 is_a_tty = 1;
486
b317819b 487#if defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_NETWARE)
200bc9e3
BM		 488 tty_in=stdin;
489 tty_out=stderr;
a63d5eaa 490#else
508f15cd
BM		 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)
200bc9e3 497 tty_in=stdin;
508f15cd 498 if ((tty_out=fopen(DEV_TTY,"w")) == NULL)
200bc9e3 499 tty_out=stderr;
a63d5eaa
RL		 500#endif
501
c5597592 502#if defined(TTY_get) && !defined(OPENSSL_SYS_VMS)
2ee67f1d 503 if (TTY_get(fileno(tty_in),&tty_orig) == -1)
a63d5eaa
RL		 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
02790299 520#ifdef OPENSSL_SYS_VMS
a63d5eaa
RL		 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
531static 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
02790299 538#if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
200bc9e3 539 if (is_a_tty && (TTY_set(fileno(tty_in),&tty_new) == -1))
a63d5eaa
RL		 540 return 0;
541#endif
02790299 542#ifdef OPENSSL_SYS_VMS
a63d5eaa
RL		 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
553static int echo_console(UI *ui)
554 {
02790299 555#if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
a63d5eaa
RL		 556 memcpy(&(tty_new),&(tty_orig),sizeof(tty_orig));
557 tty_new.TTY_FLAGS |= ECHO;
558#endif
559
02790299 560#if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
200bc9e3 561 if (is_a_tty && (TTY_set(fileno(tty_in),&tty_new) == -1))
a63d5eaa
RL		 562 return 0;
563#endif
02790299 564#ifdef OPENSSL_SYS_VMS
a63d5eaa
RL		 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
575static int close_console(UI *ui)
576 {
caa7b2ad 577 if (tty_in != stdin) fclose(tty_in);
200bc9e3 578 if (tty_out != stderr) fclose(tty_out);
02790299 579#ifdef OPENSSL_SYS_VMS
a63d5eaa
RL		 580 status = sys$dassgn(channel);
581#endif
582 CRYPTO_w_unlock(CRYPTO_LOCK_UI);
583
584 return 1;
585 }
586
587
0bf23d9b 588#if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE)
a63d5eaa
RL		 589/* Internal functions to handle signals and act on them */
590static void pushsig(void)
591 {
bfa4b8c5 592#ifndef OPENSSL_SYS_WIN32
a63d5eaa 593 int i;
bfa4b8c5 594#endif
a63d5eaa
RL		 595#ifdef SIGACTION
596 struct sigaction sa;
597
598 memset(&sa,0,sizeof sa);
599 sa.sa_handler=recsig;
600#endif
601
6d00101e
AP		 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
a63d5eaa
RL		 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 }
6d00101e 630#endif
a63d5eaa
RL		 631
632#ifdef SIGWINCH
633 signal(SIGWINCH,SIG_DFL);
634#endif
635 }
636
637static void popsig(void)
638 {
6d00101e
AP		 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
bfa4b8c5 647 int i;
a63d5eaa
RL		 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 }
6d00101e 664#endif
a63d5eaa
RL		 665 }
666
667static void recsig(int i)
668 {
7c517a04 669 intr_signal=i;
a63d5eaa 670 }
0bf23d9b 671#endif
a63d5eaa 672
a63d5eaa 673/* Internal functions specific for Windows */
0bf23d9b 674#if defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE)
a63d5eaa
RL		 675static 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();
e527201f
AP		 691#elif defined(_WIN32)
692 i=_getch();
a63d5eaa
RL		 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
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