com32/libutil/ansiline.c

   1 /* ----------------------------------------------------------------------- *
   2  *
   3  *   Copyright 2004-2008 H. Peter Anvin - All Rights Reserved
   4  *
   5  *   Permission is hereby granted, free of charge, to any person
   6  *   obtaining a copy of this software and associated documentation
   7  *   files (the "Software"), to deal in the Software without
   8  *   restriction, including without limitation the rights to use,
   9  *   copy, modify, merge, publish, distribute, sublicense, and/or
  10  *   sell copies of the Software, and to permit persons to whom
  11  *   the Software is furnished to do so, subject to the following
  12  *   conditions:
  13  *
  14  *   The above copyright notice and this permission notice shall
  15  *   be included in all copies or substantial portions of the Software.
  16  *
  17  *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  19  *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  20  *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  21  *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  22  *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  23  *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  24  *   OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  * ----------------------------------------------------------------------- */
  27
  28 /*
  29  * ansiline.c
  30  *
  31  * Configures the console for ANSI output in line mode; versions
  32  * for COM32 and Linux support.
  33  */
  34
  35 #ifdef __COM32__
  36
  37 #include <stdio.h>
  38 #include <unistd.h>
  39 #include <console.h>
  40
  41 static void __attribute__((destructor)) console_cleanup(void)
  42 {
  43   /* For the serial console, be nice and clean up */
  44   fputs("\033[0m\033[20l", stdout);
  45 }
  46
  47 void console_ansi_std(void)
  48 {
  49   openconsole(&dev_stdcon_r, &dev_ansiserial_w);
  50   fputs("\033[0m\033[20h", stdout);
  51 }
  52
  53 #else
  54
  55 #include <stdio.h>
  56 #include <termios.h>
  57
  58 static struct termios original_termios_settings;
  59
  60 static void __attribute__((constructor)) console_init(void)
  61 {
  62   tcgetattr(0, &original_termios_settings);
  63 }
  64
  65 static void __attribute__((destructor)) console_cleanup(void)
  66 {
  67   fputs("\033[0m\033[20l", stdout);
  68   tcsetattr(0, TCSANOW, &original_termios_settings);
  69 }
  70
  71
  72 void console_ansi_std(void)
  73 {
  74   struct termios tio;
  75
  76   /* Disable stdio buffering */
  77   setbuf(stdin,  NULL);
  78   setbuf(stdout, NULL);
  79   setbuf(stderr, NULL);
  80
  81   /* Set the termios flag so we behave the same as libcom32 */
  82   tcgetattr(0, &tio);
  83   tio.c_iflag &= ~ICRNL;
  84   tio.c_iflag |= IGNCR;
  85   tio.c_cflag |= ICANON|ECHO;
  86   tcsetattr(0, TCSANOW, &tio);
  87   fputs("\033[0m\033[20h", stdout);
  88 }
  89
  90 #endif