1 /* crypto/ui/ui_openssl.c -*- mode:C; c-file-style: "eay" -*- */
3 * Written by Richard Levitte (richard@levitte.org) and others for the
4 * OpenSSL project 2001.
6 /* ====================================================================
7 * Copyright (c) 2001 The OpenSSL Project. All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * openssl-core@openssl.org.
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
35 * 6. Redistributions of any form whatsoever must retain the following
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com). This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
61 * The lowest level part of this file was previously in crypto/des/read_pwd.c,
62 * Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
63 * All rights reserved.
65 * This package is an SSL implementation written
66 * by Eric Young (eay@cryptsoft.com).
67 * The implementation was written so as to conform with Netscapes SSL.
69 * This library is free for commercial and non-commercial use as long as
70 * the following conditions are aheared to. The following conditions
71 * apply to all code found in this distribution, be it the RC4, RSA,
72 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
73 * included with this distribution is covered by the same copyright terms
74 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
76 * Copyright remains Eric Young's, and as such any Copyright notices in
77 * the code are not to be removed.
78 * If this package is used in a product, Eric Young should be given attribution
79 * as the author of the parts of the library used.
80 * This can be in the form of a textual message at program startup or
81 * in documentation (online or textual) provided with the package.
83 * Redistribution and use in source and binary forms, with or without
84 * modification, are permitted provided that the following conditions
86 * 1. Redistributions of source code must retain the copyright
87 * notice, this list of conditions and the following disclaimer.
88 * 2. Redistributions in binary form must reproduce the above copyright
89 * notice, this list of conditions and the following disclaimer in the
90 * documentation and/or other materials provided with the distribution.
91 * 3. All advertising materials mentioning features or use of this software
92 * must display the following acknowledgement:
93 * "This product includes cryptographic software written by
94 * Eric Young (eay@cryptsoft.com)"
95 * The word 'cryptographic' can be left out if the rouines from the library
96 * being used are not cryptographic related :-).
97 * 4. If you include any Windows specific code (or a derivative thereof) from
98 * the apps directory (application code) you must include an acknowledgement:
99 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
101 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
102 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
103 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
104 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
105 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
106 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
107 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
108 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
109 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
110 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
113 * The licence and distribution terms for any publically available version or
114 * derivative of this code cannot be changed. i.e. this code cannot simply be
115 * copied and put under another distribution licence
116 * [including the GNU Public Licence.]
119 #include <openssl/e_os2.h>
122 * need for #define _POSIX_C_SOURCE arises whenever you pass -ansi to gcc
123 * [maybe others?], because it masks interfaces not discussed in standard,
124 * sigaction and fileno included. -pedantic would be more appropriate for the
125 * intended purposes, but we can't prevent users from adding -ansi.
127 #if defined(OPENSSL_SYS_VXWORKS)
128 # include <sys/types.h>
131 #if !defined(_POSIX_C_SOURCE) && defined(OPENSSL_SYS_VMS)
132 # ifndef _POSIX_C_SOURCE
133 # define _POSIX_C_SOURCE 2
141 #if !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS)
142 # ifdef OPENSSL_UNISTD
143 # include OPENSSL_UNISTD
148 * If unistd.h defines _POSIX_VERSION, we conclude that we are on a POSIX
149 * system and have sigaction and termios.
151 # if defined(_POSIX_VERSION)
154 # if !defined(TERMIOS) && !defined(TERMIO) && !defined(SGTTY)
161 /* 06-Apr-92 Luke Brennan Support for VMS */
163 #include "cryptlib.h"
165 #ifdef OPENSSL_SYS_VMS /* prototypes for sys$whatever */
166 # include <starlet.h>
168 # pragma message disable DOLLARID
172 #ifdef WIN_CONSOLE_BUG
173 # include <windows.h>
174 # ifndef OPENSSL_SYS_WINCE
180 * There are 5 types of terminal interface supported, TERMIO, TERMIOS, VMS,
184 #if defined(__sgi) && !defined(TERMIOS)
190 #if defined(linux) && !defined(TERMIO)
202 #if !defined(TERMIO) && !defined(TERMIOS) && !defined(OPENSSL_SYS_VMS) && !defined(OPENSSL_SYS_MSDOS) && !defined(MAC_OS_GUSI_SOURCE)
208 #if defined(OPENSSL_SYS_VXWORKS)
214 #if defined(OPENSSL_SYS_NETWARE)
221 # include <termios.h>
222 # define TTY_STRUCT struct termios
223 # define TTY_FLAGS c_lflag
224 # define TTY_get(tty,data) tcgetattr(tty,data)
225 # define TTY_set(tty,data) tcsetattr(tty,TCSANOW,data)
230 # define TTY_STRUCT struct termio
231 # define TTY_FLAGS c_lflag
232 # define TTY_get(tty,data) ioctl(tty,TCGETA,data)
233 # define TTY_set(tty,data) ioctl(tty,TCSETA,data)
238 # define TTY_STRUCT struct sgttyb
239 # define TTY_FLAGS sg_flags
240 # define TTY_get(tty,data) ioctl(tty,TIOCGETP,data)
241 # define TTY_set(tty,data) ioctl(tty,TIOCSETP,data)
244 #if !defined(_LIBC) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS)
245 # include <sys/ioctl.h>
248 #ifdef OPENSSL_SYS_MSDOS
252 #ifdef OPENSSL_SYS_VMS
256 # include <descrip.h>
264 #if defined(MAC_OS_GUSI_SOURCE) || defined(OPENSSL_SYS_NETWARE)
266 * This one needs work. As a matter of fact the code is unoperational
267 * and this is only a trick to get it compiled.
268 * <appro@fy.chalmers.se>
270 # define TTY_STRUCT int
274 # define NX509_SIG 32
277 /* Define globals. They are protected by a lock */
279 static struct sigaction savsig[NX509_SIG];
281 static void (*savsig[NX509_SIG]) (int);
284 #ifdef OPENSSL_SYS_VMS
285 static struct IOSB iosb;
286 static $DESCRIPTOR(terminal, "TT");
287 static long tty_orig[3], tty_new[3]; /* XXX Is there any guarantee that this
288 * will always suffice for the actual
291 static unsigned short channel = 0;
293 # if !defined(OPENSSL_SYS_MSDOS) || defined(__DJGPP__)
294 static TTY_STRUCT tty_orig, tty_new;
297 static FILE *tty_in, *tty_out;
300 /* Declare static functions */
301 #if !defined(OPENSSL_SYS_WINCE)
302 static int read_till_nl(FILE *);
303 static void recsig(int);
304 static void pushsig(void);
305 static void popsig(void);
307 #if defined(OPENSSL_SYS_MSDOS)
308 static int noecho_fgets(char *buf, int size, FILE *tty);
310 static int read_string_inner(UI *ui, UI_STRING *uis, int echo, int strip_nl);
312 static int read_string(UI *ui, UI_STRING *uis);
313 static int write_string(UI *ui, UI_STRING *uis);
315 static int open_console(UI *ui);
316 static int echo_console(UI *ui);
317 static int noecho_console(UI *ui);
318 static int close_console(UI *ui);
320 static UI_METHOD ui_openssl = {
321 "OpenSSL default user interface",
324 NULL, /* No flusher is needed for command lines */
330 /* The method with all the built-in thingies */
331 UI_METHOD *UI_OpenSSL(void)
337 * The following function makes sure that info and error strings are printed
340 static int write_string(UI *ui, UI_STRING *uis)
342 switch (UI_get_string_type(uis)) {
345 fputs(UI_get0_output_string(uis), tty_out);
354 static int read_string(UI *ui, UI_STRING *uis)
358 switch (UI_get_string_type(uis)) {
360 fputs(UI_get0_output_string(uis), tty_out);
361 fputs(UI_get0_action_string(uis), tty_out);
363 return read_string_inner(ui, uis,
364 UI_get_input_flags(uis) & UI_INPUT_FLAG_ECHO,
367 fputs(UI_get0_output_string(uis), tty_out);
369 return read_string_inner(ui, uis,
370 UI_get_input_flags(uis) & UI_INPUT_FLAG_ECHO,
373 fprintf(tty_out, "Verifying - %s", UI_get0_output_string(uis));
375 if ((ok = read_string_inner(ui, uis,
376 UI_get_input_flags(uis) &
377 UI_INPUT_FLAG_ECHO, 1)) <= 0)
379 if (strcmp(UI_get0_result_string(uis), UI_get0_test_string(uis)) != 0) {
380 fprintf(tty_out, "Verify failure\n");
391 #if !defined(OPENSSL_SYS_WINCE)
392 /* Internal functions to read a string without echoing */
393 static int read_till_nl(FILE *in)
399 if (!fgets(buf, SIZE, in))
401 } while (strchr(buf, '\n') == NULL);
405 static volatile sig_atomic_t intr_signal;
408 static int read_string_inner(UI *ui, UI_STRING *uis, int echo, int strip_nl)
413 int maxsize = BUFSIZ - 1;
414 #if !defined(OPENSSL_SYS_WINCE)
424 if (!echo && !noecho_console(ui))
429 # ifdef OPENSSL_SYS_MSDOS
431 noecho_fgets(result, maxsize, tty_in);
432 p = result; /* FIXME: noecho_fgets doesn't return errors */
434 p = fgets(result, maxsize, tty_in);
436 p = fgets(result, maxsize, tty_in);
444 if ((p = (char *)strchr(result, '\n')) != NULL) {
447 } else if (!read_till_nl(tty_in))
449 if (UI_set_result(ui, uis, result) >= 0)
453 if (intr_signal == SIGINT)
456 fprintf(tty_out, "\n");
457 if (ps >= 2 && !echo && !echo_console(ui))
466 OPENSSL_cleanse(result, BUFSIZ);
470 /* Internal functions to open, handle and close a channel to the console. */
471 static int open_console(UI *ui)
473 CRYPTO_w_lock(CRYPTO_LOCK_UI);
476 #if defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_NETWARE)
480 # ifdef OPENSSL_SYS_MSDOS
481 # define DEV_TTY "con"
483 # define DEV_TTY "/dev/tty"
485 if ((tty_in = fopen(DEV_TTY, "r")) == NULL)
487 if ((tty_out = fopen(DEV_TTY, "w")) == NULL)
491 #if defined(TTY_get) && !defined(OPENSSL_SYS_VMS)
492 if (TTY_get(fileno(tty_in), &tty_orig) == -1) {
500 * Ariel Glenn ariel@columbia.edu reports that solaris can return
501 * EINVAL instead. This should be ok
510 #ifdef OPENSSL_SYS_VMS
511 status = sys$assign(&terminal, &channel, 0, 0);
512 if (status != SS$_NORMAL)
515 sys$qiow(0, channel, IO$_SENSEMODE, &iosb, 0, 0, tty_orig, 12, 0, 0,
517 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
523 static int noecho_console(UI *ui)
526 memcpy(&(tty_new), &(tty_orig), sizeof(tty_orig));
527 tty_new.TTY_FLAGS &= ~ECHO;
530 #if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
531 if (is_a_tty && (TTY_set(fileno(tty_in), &tty_new) == -1))
534 #ifdef OPENSSL_SYS_VMS
535 tty_new[0] = tty_orig[0];
536 tty_new[1] = tty_orig[1] | TT$M_NOECHO;
537 tty_new[2] = tty_orig[2];
539 sys$qiow(0, channel, IO$_SETMODE, &iosb, 0, 0, tty_new, 12, 0, 0, 0,
541 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
547 static int echo_console(UI *ui)
549 #if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
550 memcpy(&(tty_new), &(tty_orig), sizeof(tty_orig));
551 tty_new.TTY_FLAGS |= ECHO;
554 #if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
555 if (is_a_tty && (TTY_set(fileno(tty_in), &tty_new) == -1))
558 #ifdef OPENSSL_SYS_VMS
559 tty_new[0] = tty_orig[0];
560 tty_new[1] = tty_orig[1] & ~TT$M_NOECHO;
561 tty_new[2] = tty_orig[2];
563 sys$qiow(0, channel, IO$_SETMODE, &iosb, 0, 0, tty_new, 12, 0, 0, 0,
565 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
571 static int close_console(UI *ui)
575 if (tty_out != stderr)
577 #ifdef OPENSSL_SYS_VMS
578 status = sys$dassgn(channel);
580 CRYPTO_w_unlock(CRYPTO_LOCK_UI);
585 #if !defined(OPENSSL_SYS_WINCE)
586 /* Internal functions to handle signals and act on them */
587 static void pushsig(void)
589 # ifndef OPENSSL_SYS_WIN32
595 memset(&sa, 0, sizeof sa);
596 sa.sa_handler = recsig;
599 # ifdef OPENSSL_SYS_WIN32
600 savsig[SIGABRT] = signal(SIGABRT, recsig);
601 savsig[SIGFPE] = signal(SIGFPE, recsig);
602 savsig[SIGILL] = signal(SIGILL, recsig);
603 savsig[SIGINT] = signal(SIGINT, recsig);
604 savsig[SIGSEGV] = signal(SIGSEGV, recsig);
605 savsig[SIGTERM] = signal(SIGTERM, recsig);
607 for (i = 1; i < NX509_SIG; i++) {
617 if (i == SIGKILL) /* We can't make any action on that. */
621 sigaction(i, &sa, &savsig[i]);
623 savsig[i] = signal(i, recsig);
629 signal(SIGWINCH, SIG_DFL);
633 static void popsig(void)
635 # ifdef OPENSSL_SYS_WIN32
636 signal(SIGABRT, savsig[SIGABRT]);
637 signal(SIGFPE, savsig[SIGFPE]);
638 signal(SIGILL, savsig[SIGILL]);
639 signal(SIGINT, savsig[SIGINT]);
640 signal(SIGSEGV, savsig[SIGSEGV]);
641 signal(SIGTERM, savsig[SIGTERM]);
644 for (i = 1; i < NX509_SIG; i++) {
654 sigaction(i, &savsig[i], NULL);
656 signal(i, savsig[i]);
662 static void recsig(int i)
668 /* Internal functions specific for Windows */
669 #if defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WINCE)
670 static int noecho_fgets(char *buf, int size, FILE *tty)
695 # ifdef WIN_CONSOLE_BUG
697 * Win95 has several evil console bugs: one of these is that the last
698 * character read using getch() is passed to the next read: this is
699 * usually a CR so this can be trouble. No STDIO fix seems to work but
700 * flushing the console appears to do the trick.
704 inh = GetStdHandle(STD_INPUT_HANDLE);
705 FlushConsoleInputBuffer(inh);
708 return (strlen(buf));