e1237bfefd
1. A memory corruption issue that occurs from a paste operation that would overflow the fixed buffer size for keyboard processing. 2. A stall in getch() processing when there are cached keycodes in the termcurses emulation (tcurses_vt100.c).
252 lines
8.4 KiB
C
252 lines
8.4 KiB
C
/********************************************************************************************
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* apps/include/system/termcurses.h
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*
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* Copyright (C) 2018 Ken Pettit. All rights reserved.
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* Author: Ken Pettit <pettitkd@gmail.com>
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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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* 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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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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********************************************************************************************/
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#ifndef __APPS_INCLUDE_SYSTEM_TERMCURSES_H
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#define __APPS_INCLUDE_SYSTEM_TERMCURSES_H
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/********************************************************************************************
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* Included Files
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********************************************************************************************/
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#include <stdint.h>
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#include <nuttx/fs/ioctl.h>
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#include <nuttx/fs/fs.h>
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/********************************************************************************************
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* Pre-processor Definitions
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********************************************************************************************/
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#define TCURS_CLEAR_SCREEN 1
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#define TCURS_CLEAR_LINE 2
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#define TCURS_CLEAR_EOS 3
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#define TCURS_CLEAR_EOL 4
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#define TCURS_MOVE_UP 1
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#define TCURS_MOVE_DOWN 2
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#define TCURS_MOVE_LEFT 3
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#define TCURS_MOVE_RIGHT 4
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#define TCURS_MOVE_YX 5
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#define TCURS_MOVE_TO_ROW 6
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#define TCURS_MOVE_TO_COL 7
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#define TCURS_COLOR_FG 0x01
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#define TCURS_COLOR_BG 0x02
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#define TCURS_ATTRIB_BLINK 0x0001
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#define TCURS_ATTRIB_BOLD 0x0002
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#define TCURS_ATTRIB_UNDERLINE 0x0004
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#define TCURS_ATTRIB_INVIS 0x0008
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#define TCURS_ATTRIB_CURS_HIDE 0x0010
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#define TCURS_ATTRIB_CURS_SHOW 0x0020
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/********************************************************************************************
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* Public Type Definitions
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********************************************************************************************/
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/* Used with TTY ioctls */
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struct tcurses_ioctl_s
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{
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uint16_t tc_row; /* Cursor row */
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uint16_t tc_col; /* Cursor col */
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};
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struct termcurses_dev_s;
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struct termcurses_s;
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struct termcurses_colors_s;
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struct termcurses_ops_s
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{
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/* Initialize a new instance bound to a file */
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CODE FAR struct termcurses_s * (*init)(int in_fd, int out_fd);
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/* Clear operations (screen, line, EOS, EOL) */
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CODE int (*clear)(FAR struct termcurses_s *dev, int type);
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/* Cursor Move operations */
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CODE int (*move)(FAR struct termcurses_s *dev, int type, int col, int row);
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/* Get terminal size in row/col dimensions */
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CODE int (*getwinsize)(FAR struct termcurses_s *dev, FAR struct winsize *winsz);
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/* Set fg/bg colors */
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CODE int (*setcolors)(FAR struct termcurses_s *dev,
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FAR struct termcurses_colors_s *colors);
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/* Set display attributes */
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CODE int (*setattrib)(FAR struct termcurses_s *dev, unsigned long attributes);
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/* Get a keycode value */
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CODE int (*getkeycode)(FAR struct termcurses_s *dev, int *specialkey, int *keymodifers);
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/* Check for cached keycode value */
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CODE bool (*checkkey)(FAR struct termcurses_s *dev);
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};
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struct termcurses_dev_s
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{
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FAR const struct termcurses_ops_s *ops;
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FAR struct termcurses_dev_s *next;
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FAR const char *name;
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};
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struct termcurses_s
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{
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FAR struct termcurses_dev_s *dev;
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FAR struct file *filep;
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};
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struct termcurses_colors_s
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{
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uint8_t color_mask;
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uint8_t fg_red;
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uint8_t fg_green;
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uint8_t fg_blue;
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uint8_t bg_red;
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uint8_t bg_green;
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uint8_t bg_blue;
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};
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/********************************************************************************************
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* Public Function Prototypes
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********************************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/********************************************************************************************
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* termcurses_initterm:
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*
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* Finds a termcurses_s device based on terminal type string and initialize
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* a new context for device control.
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*
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********************************************************************************************/
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int termcurses_initterm(FAR const char *term_type, int in_fd, int out_fd,
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FAR struct termcurses_s **dev);
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/************************************************************************************
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* Name: termcurses_deinitterm
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*
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* Description:
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* Free all space for the termcurses terminal and perform any specific
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* de-initialization tasks.
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*
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************************************************************************************/
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int termcurses_deinitterm(FAR struct termcurses_s *dev);
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/************************************************************************************
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* Name: termcurses_moveyx
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*
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* Description:
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* Configure output text to render in the specified fg/bg colors.
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*
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************************************************************************************/
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int termcurses_moveyx(FAR struct termcurses_s *term, int row, int col);
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/************************************************************************************
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* Name: termcurses_setattribute
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*
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* Description:
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* Configure output text to render in the specified fg/bg colors.
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*
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************************************************************************************/
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int termcurses_setattribute(FAR struct termcurses_s *term, unsigned long attrib);
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/************************************************************************************
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* Name: termcurses_setcolors
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*
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* Description:
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* Configure output text to render in the specified fg/bg colors.
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*
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************************************************************************************/
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int termcurses_setcolors(FAR struct termcurses_s *term,
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FAR struct termcurses_colors_s *colors);
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/************************************************************************************
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* Name: termcurses_getwinsize
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*
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* Description:
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* Determines the size of the terminal screen in terms of character rows and cols.
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*
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************************************************************************************/
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int termcurses_getwinsize(FAR struct termcurses_s *term, FAR struct winsize *winsz);
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/************************************************************************************
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* Name: termcurses_getkeycode
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*
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* Description:
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* Get a translated key code from the terminal input.
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*
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************************************************************************************/
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int termcurses_getkeycode(FAR struct termcurses_s *term, FAR int *specialkey,
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FAR int *keymodifiers);
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/************************************************************************************
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* Name: termcurses_checkkey
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*
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* Description:
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* Check if there is a key waiting to be processed.
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*
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************************************************************************************/
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bool termcurses_checkkey(FAR struct termcurses_s *term);
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __APPS_INCLUDE_SYSTEM_TERMCURSES_H */
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