11305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood/* $OpenBSD: sshtty.c,v 1.14 2010/01/09 05:04:24 djm Exp $ */ 21305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood/* 31305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * Author: Tatu Ylonen <ylo@cs.hut.fi> 41305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland 51305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * All rights reserved 61305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * 71305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * As far as I am concerned, the code I have written for this software 81305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * can be used freely for any purpose. Any derived versions of this 91305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * software must be clearly marked as such, and if the derived work is 101305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * incompatible with the protocol description in the RFC file, it must be 111305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * called by a name other than "ssh" or "Secure Shell". 121305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood */ 131305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood/* 141305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * Copyright (c) 2001 Markus Friedl. All rights reserved. 151305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * Copyright (c) 2001 Kevin Steves. All rights reserved. 161305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * 171305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * Redistribution and use in source and binary forms, with or without 181305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * modification, are permitted provided that the following conditions 191305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * are met: 201305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * 1. Redistributions of source code must retain the above copyright 211305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * notice, this list of conditions and the following disclaimer. 221305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * 2. Redistributions in binary form must reproduce the above copyright 231305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * notice, this list of conditions and the following disclaimer in the 241305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * documentation and/or other materials provided with the distribution. 251305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * 261305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 271305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 281305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 291305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 301305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 311305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 321305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 331305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 341305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 351305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 361305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood */ 371305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 381305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include "includes.h" 391305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 401305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include <sys/types.h> 411305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include <stdio.h> 421305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include <termios.h> 431305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include <pwd.h> 441305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 451305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include "sshpty.h" 461305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 471305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwoodstatic struct termios _saved_tio; 481305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwoodstatic int _in_raw_mode = 0; 491305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 501305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwoodstruct termios * 511305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwoodget_saved_tio(void) 521305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood{ 531305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood return _in_raw_mode ? &_saved_tio : NULL; 541305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood} 551305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 561305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwoodvoid 571305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwoodleave_raw_mode(int quiet) 581305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood{ 591305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (!_in_raw_mode) 601305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood return; 611305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (tcsetattr(fileno(stdin), TCSADRAIN, &_saved_tio) == -1) { 621305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (!quiet) 631305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood perror("tcsetattr"); 641305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood } else 651305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood _in_raw_mode = 0; 661305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood} 671305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 681305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwoodvoid 691305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwoodenter_raw_mode(int quiet) 701305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood{ 711305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood struct termios tio; 721305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 731305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (tcgetattr(fileno(stdin), &tio) == -1) { 741305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (!quiet) 751305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood perror("tcgetattr"); 761305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood return; 771305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood } 781305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood _saved_tio = tio; 791305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood tio.c_iflag |= IGNPAR; 801305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood tio.c_iflag &= ~(ISTRIP | INLCR | IGNCR | ICRNL | IXON | IXANY | IXOFF); 811305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#ifdef IUCLC 821305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood tio.c_iflag &= ~IUCLC; 831305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#endif 841305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood tio.c_lflag &= ~(ISIG | ICANON | ECHO | ECHOE | ECHOK | ECHONL); 851305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#ifdef IEXTEN 861305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood tio.c_lflag &= ~IEXTEN; 871305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#endif 881305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood tio.c_oflag &= ~OPOST; 891305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood tio.c_cc[VMIN] = 1; 901305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood tio.c_cc[VTIME] = 0; 911305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (tcsetattr(fileno(stdin), TCSADRAIN, &tio) == -1) { 921305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (!quiet) 931305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood perror("tcsetattr"); 941305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood } else 951305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood _in_raw_mode = 1; 961305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood} 97