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