105 lines
2.7 KiB
C
105 lines
2.7 KiB
C
/* ----------------------------------------------------------------------- *
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*
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* Copyright 2004-2008 H. Peter Anvin - All Rights Reserved
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom
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* the Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall
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* be included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* ----------------------------------------------------------------------- */
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/*
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* ansiraw.c
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*
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* Configures the console for ANSI output in raw mode; versions
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* for COM32 and Linux support.
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*/
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#ifdef __COM32__
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#include <stdio.h>
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#include <unistd.h>
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#include <console.h>
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void console_ansi_raw(void)
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{
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openconsole(&dev_rawcon_r, &dev_ansiserial_w);
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}
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#else
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#include <stdio.h>
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#include <termios.h>
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#include <unistd.h>
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static struct termios original_termios_settings;
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static void __attribute__ ((constructor)) console_init(void)
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{
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tcgetattr(0, &original_termios_settings);
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}
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static void __attribute__ ((destructor)) console_cleanup(void)
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{
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tcsetattr(0, TCSANOW, &original_termios_settings);
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}
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void console_ansi_raw(void)
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{
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struct termios tio;
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/* Disable stdio buffering */
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setbuf(stdin, NULL);
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setbuf(stdout, NULL);
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setbuf(stderr, NULL);
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/* Set the termios flag so we behave the same as libcom32 */
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tcgetattr(0, &tio);
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tio.c_iflag &= ~ICRNL;
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tio.c_iflag |= IGNCR;
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tio.c_lflag &= ~(ISIG | ICANON | ECHO);
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if (!tio.c_oflag & OPOST)
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tio.c_oflag = 0;
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tio.c_oflag |= OPOST | ONLCR;
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tio.c_cc[VMIN] = 0;
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tio.c_cc[VTIME] = 1; /* Don't 100% busy-wait in Linux */
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tcsetattr(0, TCSAFLUSH, &tio);
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}
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int raw_read(int fd, void *buf, size_t count)
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{
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struct termios tio, rtio;
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int rv;
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tcgetattr(fd, &tio);
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cfmakeraw(&rtio);
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tcsetattr(fd, 0, &rtio);
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rv = read(fd, buf, count);
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/* Restore settings */
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tcsetattr(fd, 0, &tio);
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return rv;
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}
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#endif
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