/* crypto/ui/ui_openssl.c -*- mode:C; c-file-style: "eay" -*- *//* Written by Richard Levitte (richard@levitte.org) and others * for the OpenSSL project 2001. *//* ==================================================================== * Copyright (c) 2001 The OpenSSL Project.  All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright *    notice, this list of conditions and the following disclaimer.  * * 2. Redistributions in binary form must reproduce the above copyright *    notice, this list of conditions and the following disclaimer in *    the documentation and/or other materials provided with the *    distribution. * * 3. All advertising materials mentioning features or use of this *    software must display the following acknowledgment: *    "This product includes software developed by the OpenSSL Project *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to *    endorse or promote products derived from this software without *    prior written permission. For written permission, please contact *    openssl-core@openssl.org. * * 5. Products derived from this software may not be called "OpenSSL" *    nor may "OpenSSL" appear in their names without prior written *    permission of the OpenSSL Project. * * 6. Redistributions of any form whatsoever must retain the following *    acknowledgment: *    "This product includes software developed by the OpenSSL Project *    for use in the OpenSSL Toolkit (http://www.openssl.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. * ==================================================================== * * This product includes cryptographic software written by Eric Young * (eay@cryptsoft.com).  This product includes software written by Tim * Hudson (tjh@cryptsoft.com). * *//* The lowest level part of this file was previously in crypto/des/read_pwd.c, * Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. *  * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to.  The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code.  The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). *  * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. *  * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the copyright *    notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright *    notice, this list of conditions and the following disclaimer in the *    documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software *    must display the following acknowledgement: *    "This product includes cryptographic software written by *     Eric Young (eay@cryptsoft.com)" *    The word 'cryptographic' can be left out if the rouines from the library *    being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from  *    the apps directory (application code) you must include an acknowledgement: *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" *  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. *  * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed.  i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */#include <openssl/e_os2.h>#if !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS)# ifdef OPENSSL_UNISTD#  include OPENSSL_UNISTD# else#  include <unistd.h># endif/* If unistd.h defines _POSIX_VERSION, we conclude that we * are on a POSIX system and have sigaction and termios. */# if defined(_POSIX_VERSION)#  define SIGACTION#  if !defined(TERMIOS) && !defined(TERMIO) && !defined(SGTTY)#   define TERMIOS#  endif# endif#endif#ifdef WIN16TTY# undef OPENSSL_SYS_WIN16# undef WIN16# undef _WINDOWS# include <graph.h>#endif/* 06-Apr-92 Luke Brennan    Support for VMS */#include "ui_locl.h"#include "cryptlib.h"#include <signal.h>#include <stdio.h>#include <string.h>#include <errno.h>#ifdef OPENSSL_SYS_VMS		/* prototypes for sys$whatever */# include <starlet.h># ifdef __DECC#  pragma message disable DOLLARID# endif#endif#ifdef WIN_CONSOLE_BUG# include <windows.h>#ifndef OPENSSL_SYS_WINCE# include <wincon.h>#endif#endif/* There are 5 types of terminal interface supported, * TERMIO, TERMIOS, VMS, MSDOS and SGTTY */#if defined(__sgi) && !defined(TERMIOS)# define TERMIOS# undef  TERMIO# undef  SGTTY#endif#if defined(linux) && !defined(TERMIO)# undef  TERMIOS# define TERMIO# undef  SGTTY#endif#ifdef _LIBC# undef  TERMIOS# define TERMIO# undef  SGTTY#endif#if !defined(TERMIO) && !defined(TERMIOS) && !defined(OPENSSL_SYS_VMS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_MACINTOSH_CLASSIC) && !defined(MAC_OS_GUSI_SOURCE)# undef  TERMIOS# undef  TERMIO# define SGTTY#endif#if defined(OPENSSL_SYS_VXWORKS)#undef TERMIOS#undef TERMIO#undef SGTTY#endif#ifdef TERMIOS# include <termios.h># define TTY_STRUCT		struct termios# define TTY_FLAGS		c_lflag# define TTY_get(tty,data)	tcgetattr(tty,data)# define TTY_set(tty,data)	tcsetattr(tty,TCSANOW,data)#endif#ifdef TERMIO# include <termio.h># define TTY_STRUCT		struct termio# define TTY_FLAGS		c_lflag# define TTY_get(tty,data)	ioctl(tty,TCGETA,data)# define TTY_set(tty,data)	ioctl(tty,TCSETA,data)#endif#ifdef SGTTY# include <sgtty.h># define TTY_STRUCT		struct sgttyb# define TTY_FLAGS		sg_flags# define TTY_get(tty,data)	ioctl(tty,TIOCGETP,data)# define TTY_set(tty,data)	ioctl(tty,TIOCSETP,data)#endif#if !defined(_LIBC) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS) && !defined(OPENSSL_SYS_MACINTOSH_CLASSIC) && !defined(OPENSSL_SYS_SUNOS)# include <sys/ioctl.h>#endif#ifdef OPENSSL_SYS_MSDOS# include <conio.h>#endif#ifdef OPENSSL_SYS_VMS# include <ssdef.h># include <iodef.h># include <ttdef.h># include <descrip.h>struct IOSB {	short iosb$w_value;	short iosb$w_count;	long  iosb$l_info;	};#endif#ifdef OPENSSL_SYS_SUNOS	typedef int sig_atomic_t;#endif#if defined(OPENSSL_SYS_MACINTOSH_CLASSIC) || defined(MAC_OS_GUSI_SOURCE)/* * This one needs work. As a matter of fact the code is unoperational * and this is only a trick to get it compiled. *					<appro@fy.chalmers.se> */# define TTY_STRUCT int#endif#ifndef NX509_SIG# define NX509_SIG 32#endif/* Define globals.  They are protected by a lock */#ifdef SIGACTIONstatic struct sigaction savsig[NX509_SIG];#elsestatic void (*savsig[NX509_SIG])(int );#endif#ifdef OPENSSL_SYS_VMSstatic struct IOSB iosb;static $DESCRIPTOR(terminal,"TT");static long tty_orig[3], tty_new[3]; /* XXX   Is there any guarantee that this will always suffice for the actual structures? */static long status;static unsigned short channel = 0;#else#if !defined(OPENSSL_SYS_MSDOS) || defined(__DJGPP__)static TTY_STRUCT tty_orig,tty_new;#endif#endifstatic FILE *tty_in, *tty_out;static int is_a_tty;/* Declare static functions */#if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE)static void read_till_nl(FILE *);static void recsig(int);static void pushsig(void);static void popsig(void);#endif#if defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN16)static int noecho_fgets(char *buf, int size, FILE *tty);#endifstatic int read_string_inner(UI *ui, UI_STRING *uis, int echo, int strip_nl);static int read_string(UI *ui, UI_STRING *uis);static int write_string(UI *ui, UI_STRING *uis);static int open_console(UI *ui);static int echo_console(UI *ui);static int noecho_console(UI *ui);static int close_console(UI *ui);static UI_METHOD ui_openssl =	{	"OpenSSL default user interface",	open_console,	write_string,	NULL,			/* No flusher is needed for command lines */	read_string,	close_console,	NULL	};/* The method with all the built-in thingies */UI_METHOD *UI_OpenSSL(void)	{	return &ui_openssl;	}/* The following function makes sure that info and error strings are printed   before any prompt. */static int write_string(UI *ui, UI_STRING *uis)	{	switch (UI_get_string_type(uis))		{	case UIT_ERROR:	case UIT_INFO:		fputs(UI_get0_output_string(uis), tty_out);		fflush(tty_out);		break;	default:		break;		}	return 1;	}