718 lines
20 KiB
C
718 lines
20 KiB
C
/* crypto/ui/ui_openssl.c */
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/*
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* Written by Richard Levitte (richard@levitte.org) and others for the
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* OpenSSL project 2001.
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*/
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/* ====================================================================
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* Copyright (c) 2001 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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/*-
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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/e_os2.h>
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/*
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* need for #define _POSIX_C_SOURCE arises whenever you pass -ansi to gcc
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* [maybe others?], because it masks interfaces not discussed in standard,
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* sigaction and fileno included. -pedantic would be more appropriate for the
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* intended purposes, but we can't prevent users from adding -ansi.
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*/
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#if defined(OPENSSL_SYSNAME_VXWORKS)
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# include <sys/types.h>
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#endif
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#if !defined(_POSIX_C_SOURCE) && defined(OPENSSL_SYS_VMS)
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# ifndef _POSIX_C_SOURCE
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# define _POSIX_C_SOURCE 2
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# endif
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#endif
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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 <errno.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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/*
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* If unistd.h defines _POSIX_VERSION, we conclude that we are on a POSIX
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* system and have sigaction and termios.
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*/
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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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#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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# ifndef OPENSSL_SYS_WINCE
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# include <wincon.h>
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# endif
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#endif
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/*
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* There are 5 types of terminal interface supported, TERMIO, TERMIOS, VMS,
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* MSDOS and SGTTY.
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*
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* If someone defines one of the macros TERMIO, TERMIOS or SGTTY, it will
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* remain respected. Otherwise, we default to TERMIOS except for a few
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* systems that require something different.
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*
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* Note: we do not use SGTTY unless it's defined by the configuration. We
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* may eventually opt to remove it's use entirely.
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*/
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#if !defined(TERMIOS) && !defined(TERMIO) && !defined(SGTTY)
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# if defined(_LIBC)
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# undef TERMIOS
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# define TERMIO
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# undef SGTTY
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/*
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* We know that VMS, MSDOS, VXWORKS, NETWARE use entirely other mechanisms.
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* MAC_OS_GUSI_SOURCE should probably go away, but that needs to be confirmed.
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*/
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# elif !defined(OPENSSL_SYS_VMS) \
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&& !defined(OPENSSL_SYS_MSDOS) \
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&& !defined(OPENSSL_SYS_MACINTOSH_CLASSIC) \
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&& !defined(MAC_OS_GUSI_SOURCE) \
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&& !defined(OPENSSL_SYS_VXWORKS) \
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&& !defined(OPENSSL_SYS_NETWARE)
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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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#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) && !defined(OPENSSL_SYS_SUNOS)
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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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#ifdef OPENSSL_SYS_SUNOS
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typedef int sig_atomic_t;
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#endif
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#if defined(OPENSSL_SYS_MACINTOSH_CLASSIC) || defined(MAC_OS_GUSI_SOURCE) || defined(OPENSSL_SYS_NETWARE)
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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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#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]; /* XXX Is there any guarantee that this
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* will always suffice for the actual
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* structures? */
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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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# if !defined(OPENSSL_SYS_MSDOS) || defined(__DJGPP__)
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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_in, *tty_out;
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static int is_a_tty;
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/* Declare static functions */
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#if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE)
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static int 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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#endif
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#if defined(OPENSSL_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, int strip_nl);
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static int read_string(UI *ui, UI_STRING *uis);
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static int write_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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"OpenSSL default user interface",
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open_console,
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write_string,
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NULL, /* No flusher is needed for command lines */
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read_string,
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close_console,
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NULL
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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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/*
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* The following function makes sure that info and error strings are printed
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* before any prompt.
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*/
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static int write_string(UI *ui, UI_STRING *uis)
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{
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switch (UI_get_string_type(uis)) {
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case UIT_ERROR:
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case UIT_INFO:
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fputs(UI_get0_output_string(uis), tty_out);
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fflush(tty_out);
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break;
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default:
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break;
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}
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return 1;
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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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int ok = 0;
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switch (UI_get_string_type(uis)) {
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case UIT_BOOLEAN:
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fputs(UI_get0_output_string(uis), tty_out);
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fputs(UI_get0_action_string(uis), tty_out);
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fflush(tty_out);
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return read_string_inner(ui, uis,
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UI_get_input_flags(uis) & UI_INPUT_FLAG_ECHO,
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0);
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case UIT_PROMPT:
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fputs(UI_get0_output_string(uis), tty_out);
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fflush(tty_out);
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return read_string_inner(ui, uis,
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UI_get_input_flags(uis) & UI_INPUT_FLAG_ECHO,
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1);
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case UIT_VERIFY:
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fprintf(tty_out, "Verifying - %s", UI_get0_output_string(uis));
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fflush(tty_out);
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if ((ok = read_string_inner(ui, uis,
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UI_get_input_flags(uis) &
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UI_INPUT_FLAG_ECHO, 1)) <= 0)
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return ok;
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if (strcmp(UI_get0_result_string(uis), UI_get0_test_string(uis)) != 0) {
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fprintf(tty_out, "Verify failure\n");
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fflush(tty_out);
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return 0;
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}
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break;
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default:
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break;
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}
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return 1;
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}
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#if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE)
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/* Internal functions to read a string without echoing */
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static int 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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if (!fgets(buf, SIZE, in))
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return 0;
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} while (strchr(buf, '\n') == NULL);
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return 1;
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}
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static volatile sig_atomic_t intr_signal;
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#endif
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static int read_string_inner(UI *ui, UI_STRING *uis, int echo, int strip_nl)
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{
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static int ps;
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int ok;
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char result[BUFSIZ];
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int maxsize = BUFSIZ - 1;
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#if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE)
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char *p;
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intr_signal = 0;
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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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goto error;
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ps = 2;
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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_in);
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p = result; /* FIXME: noecho_fgets doesn't return errors */
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} else
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p = fgets(result, maxsize, tty_in);
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# else
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p = fgets(result, maxsize, tty_in);
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# endif
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if (!p)
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goto error;
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if (feof(tty_in))
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goto error;
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if (ferror(tty_in))
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goto error;
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if ((p = (char *)strchr(result, '\n')) != NULL) {
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if (strip_nl)
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*p = '\0';
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} else if (!read_till_nl(tty_in))
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goto error;
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if (UI_set_result(ui, uis, result) >= 0)
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ok = 1;
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error:
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if (intr_signal == SIGINT)
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ok = -1;
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if (!echo)
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fprintf(tty_out, "\n");
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if (ps >= 2 && !echo && !echo_console(ui))
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ok = 0;
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if (ps >= 1)
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popsig();
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#else
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ok = 1;
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#endif
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OPENSSL_cleanse(result, BUFSIZ);
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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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#if defined(OPENSSL_SYS_MACINTOSH_CLASSIC) || defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS)
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tty_in = stdin;
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tty_out = stderr;
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#else
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# ifdef OPENSSL_SYS_MSDOS
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# define DEV_TTY "con"
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# else
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# define DEV_TTY "/dev/tty"
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# endif
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if ((tty_in = fopen(DEV_TTY, "r")) == NULL)
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tty_in = stdin;
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if ((tty_out = fopen(DEV_TTY, "w")) == NULL)
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tty_out = stderr;
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#endif
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#if defined(TTY_get) && !defined(OPENSSL_SYS_VMS)
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if (TTY_get(fileno(tty_in), &tty_orig) == -1) {
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# ifdef ENOTTY
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if (errno == ENOTTY)
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is_a_tty = 0;
|
|
else
|
|
# endif
|
|
# ifdef EINVAL
|
|
/*
|
|
* Ariel Glenn ariel@columbia.edu reports that solaris can return
|
|
* EINVAL instead. This should be ok
|
|
*/
|
|
if (errno == EINVAL)
|
|
is_a_tty = 0;
|
|
else
|
|
# endif
|
|
return 0;
|
|
}
|
|
#endif
|
|
#ifdef OPENSSL_SYS_VMS
|
|
status = sys$assign(&terminal, &channel, 0, 0);
|
|
if (status != SS$_NORMAL)
|
|
return 0;
|
|
status =
|
|
sys$qiow(0, channel, IO$_SENSEMODE, &iosb, 0, 0, tty_orig, 12, 0, 0,
|
|
0, 0);
|
|
if ((status != SS$_NORMAL) || (iosb.iosb$w_value != SS$_NORMAL))
|
|
return 0;
|
|
#endif
|
|
return 1;
|
|
}
|
|
|
|
static int noecho_console(UI *ui)
|
|
{
|
|
#ifdef TTY_FLAGS
|
|
memcpy(&(tty_new), &(tty_orig), sizeof(tty_orig));
|
|
tty_new.TTY_FLAGS &= ~ECHO;
|
|
#endif
|
|
|
|
#if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
|
|
if (is_a_tty && (TTY_set(fileno(tty_in), &tty_new) == -1))
|
|
return 0;
|
|
#endif
|
|
#ifdef OPENSSL_SYS_VMS
|
|
tty_new[0] = tty_orig[0];
|
|
tty_new[1] = tty_orig[1] | TT$M_NOECHO;
|
|
tty_new[2] = tty_orig[2];
|
|
status =
|
|
sys$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 echo_console(UI *ui)
|
|
{
|
|
#if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
|
|
memcpy(&(tty_new), &(tty_orig), sizeof(tty_orig));
|
|
tty_new.TTY_FLAGS |= ECHO;
|
|
#endif
|
|
|
|
#if defined(TTY_set) && !defined(OPENSSL_SYS_VMS)
|
|
if (is_a_tty && (TTY_set(fileno(tty_in), &tty_new) == -1))
|
|
return 0;
|
|
#endif
|
|
#ifdef OPENSSL_SYS_VMS
|
|
tty_new[0] = tty_orig[0];
|
|
tty_new[1] = tty_orig[1] & ~TT$M_NOECHO;
|
|
tty_new[2] = tty_orig[2];
|
|
status =
|
|
sys$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 (tty_in != stdin)
|
|
fclose(tty_in);
|
|
if (tty_out != stderr)
|
|
fclose(tty_out);
|
|
#ifdef OPENSSL_SYS_VMS
|
|
status = sys$dassgn(channel);
|
|
#endif
|
|
CRYPTO_w_unlock(CRYPTO_LOCK_UI);
|
|
|
|
return 1;
|
|
}
|
|
|
|
#if !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE)
|
|
/* Internal functions to handle signals and act on them */
|
|
static void pushsig(void)
|
|
{
|
|
# ifndef OPENSSL_SYS_WIN32
|
|
int i;
|
|
# endif
|
|
# ifdef SIGACTION
|
|
struct sigaction sa;
|
|
|
|
memset(&sa, 0, sizeof sa);
|
|
sa.sa_handler = recsig;
|
|
# endif
|
|
|
|
# ifdef OPENSSL_SYS_WIN32
|
|
savsig[SIGABRT] = signal(SIGABRT, recsig);
|
|
savsig[SIGFPE] = signal(SIGFPE, recsig);
|
|
savsig[SIGILL] = signal(SIGILL, recsig);
|
|
savsig[SIGINT] = signal(SIGINT, recsig);
|
|
savsig[SIGSEGV] = signal(SIGSEGV, recsig);
|
|
savsig[SIGTERM] = signal(SIGTERM, recsig);
|
|
# else
|
|
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
|
|
}
|
|
# endif
|
|
|
|
# ifdef SIGWINCH
|
|
signal(SIGWINCH, SIG_DFL);
|
|
# endif
|
|
}
|
|
|
|
static void popsig(void)
|
|
{
|
|
# ifdef OPENSSL_SYS_WIN32
|
|
signal(SIGABRT, savsig[SIGABRT]);
|
|
signal(SIGFPE, savsig[SIGFPE]);
|
|
signal(SIGILL, savsig[SIGILL]);
|
|
signal(SIGINT, savsig[SIGINT]);
|
|
signal(SIGSEGV, savsig[SIGSEGV]);
|
|
signal(SIGTERM, savsig[SIGTERM]);
|
|
# else
|
|
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
|
|
}
|
|
# endif
|
|
}
|
|
|
|
static void recsig(int i)
|
|
{
|
|
intr_signal = i;
|
|
}
|
|
#endif
|
|
|
|
/* Internal functions specific for Windows */
|
|
#if defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN16) && !defined(OPENSSL_SYS_WINCE)
|
|
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();
|
|
# elif defined(_WIN32)
|
|
i = _getch();
|
|
# 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
|