638 lines
16 KiB
C
638 lines
16 KiB
C
/* crypto/ui/ui_openssl.c -*- mode:C; c-file-style: "eay" -*- */
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/* Written by Richard Levitte (levitte@stacken.kth.se) for the OpenSSL
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* project 2000.
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*/
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/* ====================================================================
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* Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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/* The lowest level part of this file was previously in crypto/des/read_pwd.c,
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* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#include <openssl/opensslconf.h>
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#if !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS)
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# ifdef OPENSSL_UNISTD
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# include OPENSSL_UNISTD
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# else
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# include <unistd.h>
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# endif
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/* If unistd.h defines _POSIX_VERSION, we conclude that we
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* are on a POSIX system and have sigaction and termios. */
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# if defined(_POSIX_VERSION)
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# define SIGACTION
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# if !defined(TERMIOS) && !defined(TERMIO) && !defined(SGTTY)
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# define TERMIOS
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# endif
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# endif
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#endif
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#ifdef WIN16TTY
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# undef OPENSSL_SYS_WIN16
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# undef WIN16
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# undef _WINDOWS
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# include <graph.h>
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#endif
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/* 06-Apr-92 Luke Brennan Support for VMS */
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#include "ui_locl.h"
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#include "cryptlib.h"
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#include <signal.h>
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#include <stdio.h>
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#include <string.h>
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#include <setjmp.h>
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#include <errno.h>
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#ifdef OPENSSL_SYS_VMS /* prototypes for sys$whatever */
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# include <starlet.h>
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# ifdef __DECC
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# pragma message disable DOLLARID
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# endif
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#endif
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#ifdef WIN_CONSOLE_BUG
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# include <windows.h>
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# include <wincon.h>
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#endif
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/* There are 5 types of terminal interface supported,
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* TERMIO, TERMIOS, VMS, MSDOS and SGTTY
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*/
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#if defined(__sgi) && !defined(TERMIOS)
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# define TERMIOS
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# undef TERMIO
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# undef SGTTY
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#endif
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#if defined(linux) && !defined(TERMIO)
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# undef TERMIOS
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# define TERMIO
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# undef SGTTY
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#endif
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#ifdef _LIBC
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# undef TERMIOS
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# define TERMIO
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# undef SGTTY
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#endif
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#if !defined(TERMIO) && !defined(TERMIOS) && !defined(OPENSSL_SYS_VMS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_MACINTOSH_CLASSIC) && !defined(MAC_OS_GUSI_SOURCE)
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# undef TERMIOS
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# undef TERMIO
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# define SGTTY
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#endif
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#ifdef TERMIOS
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# include <termios.h>
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# define TTY_STRUCT struct termios
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# define TTY_FLAGS c_lflag
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# define TTY_get(tty,data) tcgetattr(tty,data)
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# define TTY_set(tty,data) tcsetattr(tty,TCSANOW,data)
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#endif
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#ifdef TERMIO
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# include <termio.h>
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# define TTY_STRUCT struct termio
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# define TTY_FLAGS c_lflag
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# define TTY_get(tty,data) ioctl(tty,TCGETA,data)
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# define TTY_set(tty,data) ioctl(tty,TCSETA,data)
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#endif
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#ifdef SGTTY
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# include <sgtty.h>
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# define TTY_STRUCT struct sgttyb
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# define TTY_FLAGS sg_flags
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# define TTY_get(tty,data) ioctl(tty,TIOCGETP,data)
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# define TTY_set(tty,data) ioctl(tty,TIOCSETP,data)
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#endif
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#if !defined(_LIBC) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS) && !defined(OPENSSL_SYS_MACINTOSH_CLASSIC)
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# include <sys/ioctl.h>
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#endif
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#ifdef OPENSSL_SYS_MSDOS
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# include <conio.h>
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#endif
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#ifdef OPENSSL_SYS_VMS
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# include <ssdef.h>
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# include <iodef.h>
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# include <ttdef.h>
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# include <descrip.h>
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struct IOSB {
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short iosb$w_value;
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short iosb$w_count;
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long iosb$l_info;
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};
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#endif
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#if defined(OPENSSL_SYS_MACINTOSH_CLASSIC) || defined(MAC_OS_GUSI_SOURCE)
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/*
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* This one needs work. As a matter of fact the code is unoperational
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* and this is only a trick to get it compiled.
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* <appro@fy.chalmers.se>
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*/
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# define TTY_STRUCT int
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#endif
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#ifndef NX509_SIG
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# define NX509_SIG 32
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#endif
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/* Define globals. They are protected by a lock */
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#ifdef SIGACTION
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static struct sigaction savsig[NX509_SIG];
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#else
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static void (*savsig[NX509_SIG])(int );
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#endif
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static jmp_buf save;
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#ifdef OPENSSL_SYS_VMS
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static struct IOSB iosb;
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static $DESCRIPTOR(terminal,"TT");
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static long tty_orig[3], tty_new[3];
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static long status;
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static unsigned short channel = 0;
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#else
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#ifndef OPENSSL_SYS_MSDOS
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static TTY_STRUCT tty_orig,tty_new;
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#endif
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#endif
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static FILE *tty;
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static int is_a_tty;
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/* Declare static functions */
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static void read_till_nl(FILE *);
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static void recsig(int);
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static void pushsig(void);
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static void popsig(void);
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#if defined(OENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN16)
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static int noecho_fgets(char *buf, int size, FILE *tty);
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#endif
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static int read_string_inner(UI *ui, UI_STRING *uis, int echo);
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static int read_string(UI *ui, UI_STRING *uis);
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static int open_console(UI *ui);
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static int echo_console(UI *ui);
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static int noecho_console(UI *ui);
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static int close_console(UI *ui);
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static UI_METHOD ui_openssl =
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{
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"OpenSSL default user interface",
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open_console,
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read_string,
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NULL, /* The reader function writes as well */
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close_console,
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};
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/* The method with all the built-in thingies */
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UI_METHOD *UI_OpenSSL(void)
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{
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return &ui_openssl;
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}
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static int read_string(UI *ui, UI_STRING *uis)
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{
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switch (UI_get_string_type(uis))
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{
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case UI_VERIFY_NOECHO:
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fprintf(tty,"Verifying - %s",
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UI_get0_output_string(uis));
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fflush(tty);
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if (read_string_inner(ui, uis, 0) == 0)
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return 0;
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if (strcmp(UI_get0_result_string(uis),
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UI_get0_test_string(uis)) != 0)
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{
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fprintf(tty,"Verify failure\n");
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fflush(tty);
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return 0;
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}
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break;
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case UI_VERIFY_ECHO:
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fprintf(tty,"Verifying - %s",
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UI_get0_output_string(uis));
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fflush(tty);
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if (read_string_inner(ui, uis, 1) == 0)
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return 0;
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if (strcmp(UI_get0_result_string(uis),
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UI_get0_test_string(uis)) != 0)
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{
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fprintf(tty,"Verify failure\n");
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fflush(tty);
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return 0;
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}
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break;
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case UI_STRING_NOECHO:
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fputs(UI_get0_output_string(uis), tty);
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fflush(tty);
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return read_string_inner(ui, uis, 0);
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case UI_STRING_ECHO:
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fputs(UI_get0_output_string(uis), tty);
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fflush(tty);
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return read_string_inner(ui, uis, 1);
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default:
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fputs(UI_get0_output_string(uis), tty);
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fflush(tty);
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break;
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}
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return 1;
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}
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/* Internal functions to read a string without echoing */
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static void read_till_nl(FILE *in)
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{
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#define SIZE 4
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char buf[SIZE+1];
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do {
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fgets(buf,SIZE,in);
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} while (strchr(buf,'\n') == NULL);
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}
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static int read_string_inner(UI *ui, UI_STRING *uis, int echo)
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{
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static int ps;
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int ok;
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char *result = OPENSSL_malloc(BUFSIZ);
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int maxsize = BUFSIZ-1;
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#ifndef OPENSSL_SYS_WIN16
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if (setjmp(save))
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{
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ok=0;
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goto error;
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}
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ok=0;
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ps=0;
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pushsig();
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ps=1;
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if (!echo) noecho_console(ui);
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ps=2;
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while (!ok)
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{
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char *p;
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result[0]='\0';
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#ifdef OPENSSL_SYS_MSDOS
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if (!echo)
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noecho_fgets(result,maxsize,tty);
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else
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#endif
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fgets(result,maxsize,tty);
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if (feof(tty)) goto error;
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if (ferror(tty)) goto error;
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if ((p=(char *)strchr(result,'\n')) != NULL)
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*p='\0';
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else read_till_nl(tty);
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if (UI_set_result(uis, result) >= 0)
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ok=1;
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}
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error:
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if (!echo) fprintf(tty,"\n");
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if (ps >= 2 && !echo)
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echo_console(ui);
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if (ps >= 1)
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popsig();
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#else
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memset(result,0,BUFSIZ);
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ok=1;
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#endif
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OPENSSL_free(result);
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return ok;
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}
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/* Internal functions to open, handle and close a channel to the console. */
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static int open_console(UI *ui)
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{
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CRYPTO_w_lock(CRYPTO_LOCK_UI);
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is_a_tty = 1;
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#ifdef OPENSSL_SYS_MSDOS
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if ((tty=fopen("con","w+")) == NULL)
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tty=stdin;
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#elif defined(OPENSSL_SYS_MACINTOSH_CLASSIC)
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tty=stdin;
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#else
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if ((tty=fopen("/dev/tty","w+")) == NULL)
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tty=stdin;
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#endif
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#if defined(TTY_get) && !defined(VMS)
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if (TTY_get(fileno(tty),&tty_orig) == -1)
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{
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#ifdef ENOTTY
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if (errno == ENOTTY)
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is_a_tty=0;
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else
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#endif
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#ifdef EINVAL
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/* Ariel Glenn ariel@columbia.edu reports that solaris
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* can return EINVAL instead. This should be ok */
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if (errno == EINVAL)
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is_a_tty=0;
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else
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#endif
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return 0;
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}
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#endif
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#ifdef OPENSSL_SYS_VMS
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status = sys$assign(&terminal,&channel,0,0);
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if (status != SS$_NORMAL)
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return 0;
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status=sys$qiow(0,channel,IO$_SENSEMODE,&iosb,0,0,tty_orig,12,0,0,0,0);
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if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
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return 0;
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#endif
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return 1;
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}
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static int noecho_console(UI *ui)
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{
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#ifdef TTY_FLAGS
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memcpy(&(tty_new),&(tty_orig),sizeof(tty_orig));
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tty_new.TTY_FLAGS &= ~ECHO;
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#endif
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#if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
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if (is_a_tty && (TTY_set(fileno(tty),&tty_new) == -1))
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return 0;
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#endif
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#ifdef OPENSSL_SYS_VMS
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tty_new[0] = tty_orig[0];
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tty_new[1] = tty_orig[1] | TT$M_NOECHO;
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tty_new[2] = tty_orig[2];
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status = sys$qiow(0,channel,IO$_SETMODE,&iosb,0,0,tty_new,12,0,0,0,0);
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if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
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return 0;
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#endif
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return 1;
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}
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static int echo_console(UI *ui)
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{
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#if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
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memcpy(&(tty_new),&(tty_orig),sizeof(tty_orig));
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tty_new.TTY_FLAGS |= ECHO;
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#endif
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#if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
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if (is_a_tty && (TTY_set(fileno(tty),&tty_new) == -1))
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return 0;
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#endif
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#ifdef OPENSSL_SYS_VMS
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tty_new[0] = tty_orig[0];
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tty_new[1] = tty_orig[1] & ~TT$M_NOECHO;
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tty_new[2] = tty_orig[2];
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status = sys$qiow(0,channel,IO$_SETMODE,&iosb,0,0,tty_new,12,0,0,0,0);
|
|
if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
|
|
return 0;
|
|
#endif
|
|
return 1;
|
|
}
|
|
|
|
static int close_console(UI *ui)
|
|
{
|
|
if (stdin != tty) fclose(tty);
|
|
#ifdef OPENSSL_SYS_VMS
|
|
status = sys$dassgn(channel);
|
|
#endif
|
|
CRYPTO_w_unlock(CRYPTO_LOCK_UI);
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
/* Internal functions to handle signals and act on them */
|
|
static void pushsig(void)
|
|
{
|
|
int i;
|
|
#ifdef SIGACTION
|
|
struct sigaction sa;
|
|
|
|
memset(&sa,0,sizeof sa);
|
|
sa.sa_handler=recsig;
|
|
#endif
|
|
|
|
for (i=1; i<NX509_SIG; i++)
|
|
{
|
|
#ifdef SIGUSR1
|
|
if (i == SIGUSR1)
|
|
continue;
|
|
#endif
|
|
#ifdef SIGUSR2
|
|
if (i == SIGUSR2)
|
|
continue;
|
|
#endif
|
|
#ifdef SIGKILL
|
|
if (i == SIGKILL) /* We can't make any action on that. */
|
|
continue;
|
|
#endif
|
|
#ifdef SIGACTION
|
|
sigaction(i,&sa,&savsig[i]);
|
|
#else
|
|
savsig[i]=signal(i,recsig);
|
|
#endif
|
|
}
|
|
|
|
#ifdef SIGWINCH
|
|
signal(SIGWINCH,SIG_DFL);
|
|
#endif
|
|
}
|
|
|
|
static void popsig(void)
|
|
{
|
|
int i;
|
|
|
|
for (i=1; i<NX509_SIG; i++)
|
|
{
|
|
#ifdef SIGUSR1
|
|
if (i == SIGUSR1)
|
|
continue;
|
|
#endif
|
|
#ifdef SIGUSR2
|
|
if (i == SIGUSR2)
|
|
continue;
|
|
#endif
|
|
#ifdef SIGACTION
|
|
sigaction(i,&savsig[i],NULL);
|
|
#else
|
|
signal(i,savsig[i]);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
static void recsig(int i)
|
|
{
|
|
longjmp(save,1);
|
|
#ifdef LINT
|
|
i=i;
|
|
#endif
|
|
}
|
|
|
|
|
|
/* Internal functions specific for Windows */
|
|
#if defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN16)
|
|
static int noecho_fgets(char *buf, int size, FILE *tty)
|
|
{
|
|
int i;
|
|
char *p;
|
|
|
|
p=buf;
|
|
for (;;)
|
|
{
|
|
if (size == 0)
|
|
{
|
|
*p='\0';
|
|
break;
|
|
}
|
|
size--;
|
|
#ifdef WIN16TTY
|
|
i=_inchar();
|
|
#else
|
|
i=getch();
|
|
#endif
|
|
if (i == '\r') i='\n';
|
|
*(p++)=i;
|
|
if (i == '\n')
|
|
{
|
|
*p='\0';
|
|
break;
|
|
}
|
|
}
|
|
#ifdef WIN_CONSOLE_BUG
|
|
/* Win95 has several evil console bugs: one of these is that the
|
|
* last character read using getch() is passed to the next read: this is
|
|
* usually a CR so this can be trouble. No STDIO fix seems to work but
|
|
* flushing the console appears to do the trick.
|
|
*/
|
|
{
|
|
HANDLE inh;
|
|
inh = GetStdHandle(STD_INPUT_HANDLE);
|
|
FlushConsoleInputBuffer(inh);
|
|
}
|
|
#endif
|
|
return(strlen(buf));
|
|
}
|
|
#endif
|