1 /* crypto/ui/ui_openssl.c -*- mode:C; c-file-style: "eay" -*- */
2 /* Written by Richard Levitte (richard@levitte.org) and others
3 * for the OpenSSL project 2001.
5 /* ====================================================================
6 * Copyright (c) 2001 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
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
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/)"
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.
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.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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 * ====================================================================
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).
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.
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.
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).
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.
81 * Redistribution and use in source and binary forms, with or without
82 * modification, are permitted provided that the following conditions
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)"
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
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.]
118 #include <openssl/e_os2.h>
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.
125 #ifndef _POSIX_C_SOURCE
126 #define _POSIX_C_SOURCE 2
133 #if !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS)
134 # ifdef OPENSSL_UNISTD
135 # include OPENSSL_UNISTD
139 /* If unistd.h defines _POSIX_VERSION, we conclude that we
140 * are on a POSIX system and have sigaction and termios. */
141 # if defined(_POSIX_VERSION)
144 # if !defined(TERMIOS) && !defined(TERMIO) && !defined(SGTTY)
152 # undef OPENSSL_SYS_WIN16
158 /* 06-Apr-92 Luke Brennan Support for VMS */
160 #include "cryptlib.h"
162 #ifdef OPENSSL_SYS_VMS /* prototypes for sys$whatever */
163 # include <starlet.h>
165 # pragma message disable DOLLARID
169 #ifdef WIN_CONSOLE_BUG
170 # include <windows.h>
171 #ifndef OPENSSL_SYS_WINCE
177 /* There are 5 types of terminal interface supported,
178 * TERMIO, TERMIOS, VMS, MSDOS and SGTTY
181 #if defined(__sgi) && !defined(TERMIOS)
187 #if defined(linux) && !defined(TERMIO)
199 #if !defined(TERMIO) && !defined(TERMIOS) && !defined(OPENSSL_SYS_VMS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_MACINTOSH_CLASSIC) && !defined(MAC_OS_GUSI_SOURCE)
205 #if defined(OPENSSL_SYS_VXWORKS)
211 #if defined(OPENSSL_SYS_NETWARE)
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)
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)
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)
241 #if !defined(_LIBC) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS) && !defined(OPENSSL_SYS_MACINTOSH_CLASSIC) && !defined(OPENSSL_SYS_SUNOS)
242 # include <sys/ioctl.h>
245 #ifdef OPENSSL_SYS_MSDOS
249 #ifdef OPENSSL_SYS_VMS
253 # include <descrip.h>
261 #ifdef OPENSSL_SYS_SUNOS
262 typedef int sig_atomic_t;
265 #if defined(OPENSSL_SYS_MACINTOSH_CLASSIC) || defined(MAC_OS_GUSI_SOURCE) || defined(OPENSSL_SYS_NETWARE)
267 * This one needs work. As a matter of fact the code is unoperational
268 * and this is only a trick to get it compiled.
269 * <appro@fy.chalmers.se>
271 # define TTY_STRUCT int
275 # define NX509_SIG 32
279 /* Define globals. They are protected by a lock */
281 static struct sigaction savsig[NX509_SIG];
283 static void (*savsig[NX509_SIG])(int );
286 #ifdef OPENSSL_SYS_VMS
287 static struct IOSB iosb;
288 static $DESCRIPTOR(terminal,"TT");
289 static long tty_orig[3], tty_new[3]; /* XXX Is there any guarantee that this will always suffice for the actual structures? */
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_WIN16) && !defined(OPENSSL_SYS_WINCE)
302 static void 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) && !defined(OPENSSL_SYS_WIN16)
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 =
322 "OpenSSL default user interface",
325 NULL, /* No flusher is needed for command lines */
331 /* The method with all the built-in thingies */
332 UI_METHOD *UI_OpenSSL(void)
337 /* The following function makes sure that info and error strings are printed
338 before any prompt. */
339 static int write_string(UI *ui, UI_STRING *uis)
341 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))
361 fputs(UI_get0_output_string(uis), tty_out);
362 fputs(UI_get0_action_string(uis), tty_out);
364 return read_string_inner(ui, uis,
365 UI_get_input_flags(uis) & UI_INPUT_FLAG_ECHO, 0);
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, 1);
372 fprintf(tty_out,"Verifying - %s",
373 UI_get0_output_string(uis));
375 if ((ok = read_string_inner(ui, uis,
376 UI_get_input_flags(uis) & UI_INPUT_FLAG_ECHO, 1)) <= 0)
378 if (strcmp(UI_get0_result_string(uis),
379 UI_get0_test_string(uis)) != 0)
381 fprintf(tty_out,"Verify failure\n");
393 #if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE)
394 /* Internal functions to read a string without echoing */
395 static void read_till_nl(FILE *in)
402 } 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_WIN16) && !defined(OPENSSL_SYS_WINCE)
424 if (!echo && !noecho_console(ui))
429 #ifdef OPENSSL_SYS_MSDOS
432 noecho_fgets(result,maxsize,tty_in);
433 p=result; /* FIXME: noecho_fgets doesn't return errors */
436 p=fgets(result,maxsize,tty_in);
438 p=fgets(result,maxsize,tty_in);
442 if (feof(tty_in)) goto error;
443 if (ferror(tty_in)) goto error;
444 if ((p=(char *)strchr(result,'\n')) != NULL)
450 read_till_nl(tty_in);
451 if (UI_set_result(ui, uis, result) >= 0)
455 if (intr_signal == SIGINT)
457 if (!echo) fprintf(tty_out,"\n");
458 if (ps >= 2 && !echo && !echo_console(ui))
467 OPENSSL_cleanse(result,BUFSIZ);
472 /* Internal functions to open, handle and close a channel to the console. */
473 static int open_console(UI *ui)
475 CRYPTO_w_lock(CRYPTO_LOCK_UI);
478 #if defined(OPENSSL_SYS_MACINTOSH_CLASSIC) || defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS)
482 # ifdef OPENSSL_SYS_MSDOS
483 # define DEV_TTY "con"
485 # define DEV_TTY "/dev/tty"
487 if ((tty_in=fopen(DEV_TTY,"r")) == NULL)
489 if ((tty_out=fopen(DEV_TTY,"w")) == NULL)
493 #if defined(TTY_get) && !defined(OPENSSL_SYS_VMS)
494 if (TTY_get(fileno(tty_in),&tty_orig) == -1)
502 /* Ariel Glenn ariel@columbia.edu reports that solaris
503 * can return EINVAL instead. This should be ok */
511 #ifdef OPENSSL_SYS_VMS
512 status = sys$assign(&terminal,&channel,0,0);
513 if (status != SS$_NORMAL)
515 status=sys$qiow(0,channel,IO$_SENSEMODE,&iosb,0,0,tty_orig,12,0,0,0,0);
516 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
522 static int noecho_console(UI *ui)
525 memcpy(&(tty_new),&(tty_orig),sizeof(tty_orig));
526 tty_new.TTY_FLAGS &= ~ECHO;
529 #if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
530 if (is_a_tty && (TTY_set(fileno(tty_in),&tty_new) == -1))
533 #ifdef OPENSSL_SYS_VMS
534 tty_new[0] = tty_orig[0];
535 tty_new[1] = tty_orig[1] | TT$M_NOECHO;
536 tty_new[2] = tty_orig[2];
537 status = sys$qiow(0,channel,IO$_SETMODE,&iosb,0,0,tty_new,12,0,0,0,0);
538 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
544 static int echo_console(UI *ui)
546 #if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
547 memcpy(&(tty_new),&(tty_orig),sizeof(tty_orig));
548 tty_new.TTY_FLAGS |= ECHO;
551 #if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
552 if (is_a_tty && (TTY_set(fileno(tty_in),&tty_new) == -1))
555 #ifdef OPENSSL_SYS_VMS
556 tty_new[0] = tty_orig[0];
557 tty_new[1] = tty_orig[1] & ~TT$M_NOECHO;
558 tty_new[2] = tty_orig[2];
559 status = sys$qiow(0,channel,IO$_SETMODE,&iosb,0,0,tty_new,12,0,0,0,0);
560 if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
566 static int close_console(UI *ui)
568 if (tty_in != stdin) fclose(tty_in);
569 if (tty_out != stderr) fclose(tty_out);
570 #ifdef OPENSSL_SYS_VMS
571 status = sys$dassgn(channel);
573 CRYPTO_w_unlock(CRYPTO_LOCK_UI);
579 #if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE)
580 /* Internal functions to handle signals and act on them */
581 static void pushsig(void)
583 #ifndef OPENSSL_SYS_WIN32
589 memset(&sa,0,sizeof sa);
590 sa.sa_handler=recsig;
593 #ifdef OPENSSL_SYS_WIN32
594 savsig[SIGABRT]=signal(SIGABRT,recsig);
595 savsig[SIGFPE]=signal(SIGFPE,recsig);
596 savsig[SIGILL]=signal(SIGILL,recsig);
597 savsig[SIGINT]=signal(SIGINT,recsig);
598 savsig[SIGSEGV]=signal(SIGSEGV,recsig);
599 savsig[SIGTERM]=signal(SIGTERM,recsig);
601 for (i=1; i<NX509_SIG; i++)
612 if (i == SIGKILL) /* We can't make any action on that. */
616 sigaction(i,&sa,&savsig[i]);
618 savsig[i]=signal(i,recsig);
624 signal(SIGWINCH,SIG_DFL);
628 static void popsig(void)
630 #ifdef OPENSSL_SYS_WIN32
631 signal(SIGABRT,savsig[SIGABRT]);
632 signal(SIGFPE,savsig[SIGFPE]);
633 signal(SIGILL,savsig[SIGILL]);
634 signal(SIGINT,savsig[SIGINT]);
635 signal(SIGSEGV,savsig[SIGSEGV]);
636 signal(SIGTERM,savsig[SIGTERM]);
639 for (i=1; i<NX509_SIG; i++)
650 sigaction(i,&savsig[i],NULL);
658 static void recsig(int i)
664 /* Internal functions specific for Windows */
665 #if defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE)
666 static int noecho_fgets(char *buf, int size, FILE *tty)
682 #elif defined(_WIN32)
687 if (i == '\r') i='\n';
695 #ifdef WIN_CONSOLE_BUG
696 /* Win95 has several evil console bugs: one of these is that the
697 * last character read using getch() is passed to the next read: this is
698 * usually a CR so this can be trouble. No STDIO fix seems to work but
699 * flushing the console appears to do the trick.
703 inh = GetStdHandle(STD_INPUT_HANDLE);
704 FlushConsoleInputBuffer(inh);