* grub-core/osdep/windows/emuconsole.c: New file.

2013-10-14 21:33:55 +02:00 · 2013-10-14 21:33:55 +02:00 · 69ca587652
commit 69ca587652
parent d9d68ef020
5 changed files with 318 additions and 1 deletions
--- a/grub-core/osdep/unix/emuconsole.c
+++ b/grub-core/osdep/unix/emuconsole.c
@ -0,0 +1,178 @@
+/*  console.c -- console for GRUB.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2013  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <config-util.h>
+
+#include <grub/term.h>
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/time.h>
+#include <grub/terminfo.h>
+#include <grub/dl.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <termios.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <langinfo.h>
+
+#include <grub/emu/console.h>
+
+extern struct grub_terminfo_output_state grub_console_terminfo_output;
+static int original_fl;
+static int saved_orig;
+static struct termios orig_tty;
+static struct termios new_tty;
+
+static void
+put (struct grub_term_output *term __attribute__ ((unused)), const int c)
+{
+  char chr = c;
+
+  write (STDOUT_FILENO, &chr, 1);
+}
+
+static int
+readkey (struct grub_term_input *term __attribute__ ((unused)))
+{
+  grub_uint8_t c;
+  ssize_t actual;
+
+  actual = read (STDIN_FILENO, &c, 1);
+  if (actual > 0)
+    return c;
+  return -1;
+}
+
+static grub_err_t
+grub_console_init_input (struct grub_term_input *term)
+{
+  if (!saved_orig)
+    {
+      original_fl = fcntl (STDIN_FILENO, F_GETFL);
+      fcntl (STDIN_FILENO, F_SETFL, original_fl | O_NONBLOCK);
+    }
+
+  saved_orig = 1;
+
+  tcgetattr(STDIN_FILENO, &orig_tty);
+  new_tty = orig_tty;
+  new_tty.c_lflag &= ~(ICANON | ECHO);
+  new_tty.c_cc[VMIN] = 1;
+  tcsetattr(STDIN_FILENO, TCSANOW, &new_tty);
+
+  return grub_terminfo_input_init (term);
+}
+
+static grub_err_t
+grub_console_fini_input (struct grub_term_input *term
+		       __attribute__ ((unused)))
+{
+  fcntl (STDIN_FILENO, F_SETFL, original_fl);
+  tcsetattr(STDIN_FILENO, TCSANOW, &orig_tty);
+  saved_orig = 0;
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_console_init_output (struct grub_term_output *term)
+{
+  struct winsize size;
+  if (ioctl (STDOUT_FILENO, TIOCGWINSZ, &size) >= 0)
+    {
+      grub_console_terminfo_output.width = size.ws_col;
+      grub_console_terminfo_output.height = size.ws_row;
+    }
+  else
+    {
+      grub_console_terminfo_output.width = 80;
+      grub_console_terminfo_output.height = 24;
+    }
+
+  grub_terminfo_output_init (term);
+
+  return 0;
+}
+
+
+
+struct grub_terminfo_input_state grub_console_terminfo_input =
+  {
+    .readkey = readkey
+  };
+
+struct grub_terminfo_output_state grub_console_terminfo_output =
+  {
+    .put = put,
+    .width = 80,
+    .height = 24
+  };
+
+static struct grub_term_input grub_console_term_input =
+  {
+    .name = "console",
+    .init = grub_console_init_input,
+    .fini = grub_console_fini_input,
+    .getkey = grub_terminfo_getkey,
+    .data = &grub_console_terminfo_input
+  };
+
+static struct grub_term_output grub_console_term_output =
+  {
+    .name = "console",
+    .init = grub_console_init_output,
+    .putchar = grub_terminfo_putchar,
+    .getxy = grub_terminfo_getxy,
+    .getwh = grub_terminfo_getwh,
+    .gotoxy = grub_terminfo_gotoxy,
+    .cls = grub_terminfo_cls,
+    .setcolorstate = grub_terminfo_setcolorstate,
+    .setcursor = grub_terminfo_setcursor,
+    .data = &grub_console_terminfo_output,
+  };
+
+void
+grub_console_init (void)
+{
+  const char *cs = nl_langinfo (CODESET);
+  if (cs && grub_strcasecmp (cs, "UTF-8"))
+    grub_console_term_output.flags = GRUB_TERM_CODE_TYPE_UTF8_LOGICAL;
+  else
+    grub_console_term_output.flags = GRUB_TERM_CODE_TYPE_ASCII;
+  grub_term_register_input ("console", &grub_console_term_input);
+  grub_term_register_output ("console", &grub_console_term_output);
+  grub_terminfo_init ();
+  grub_terminfo_output_register (&grub_console_term_output, "vt100-color");
+}
+
+void
+grub_console_fini (void)
+{
+  if (saved_orig)
+    {
+      fcntl (STDIN_FILENO, F_SETFL, original_fl);
+      tcsetattr(STDIN_FILENO, TCSANOW, &orig_tty);
+    }
+  saved_orig = 0;
+}