Preliminary non-interactive use support

ChangeLog

@@ -1,3 +1,38 @@
+1999-05-03  OKUJI Yoshinori  <okuji@kuicr.kyoto-u.ac.jp>
+
+	Preliminary non-interactive use support.
+	
+	* grub/main.c (use_config_file): New variable.
+	(use_curses): Likewise.
+	(OPT_DISABLE_CONFIG_FILE): New constant.
+	(OPT_DISABLE_CURSES): Likewise.
+	(OPT_BATCH): Likewise.
+	(longopts): Add new options, --disable-config-file, --disable-curses,
+	and --batch.
+	(usage): Print the help messages about these new options.
+	(main): Handle them.
+
+	* grub/asmstub.c (grub_stage2) [HAVE_LIBCURSES]: If ! USE_CURSES,
+	fallback non-curses code.
+	(stop) [HAVE_LIBCURSES]: Likewise.
+	(cls) [HAVE_LIBCURSES]: Likewise.
+	(getxy) [HAVE_LIBCURSES]: Likewise.
+	(gotoxy) [HAVE_LIBCURSES]: Likewise.
+	(grub_putchar) [HAVE_LIBCURSES]: Likewise.
+	(getkey) [HAVE_LIBCURSES]: Likewise.
+	(checkkey) [HAVE_LIBCURSES]: Likewise.
+	(set_attrib) [HAVE_LIBCURSES]: Likewise.
+
+	* shared_src/cmdline.c (enter_cmdline): Do not use getc, but use
+	getkey.
+
+	* shared_src/stage2.c (cmain) [GRUB_UTIL]: Check if USE_CONFIG_FILE
+	is non-zero or not.
+
+	* shared_src/shared.h (getc): Removed.
+	(use_config_file) [GRUB_UTIL]: Add the declaration.
+	(use_curses) [GRUB_UTIL]: Likewise.
+	
 1999-05-03  OKUJI Yoshinori  <okuji@kuicr.kyoto-u.ac.jp>
 
 	* grub/asmstub.c (device_map): New variable.

grub/asmstub.c

@@ -180,6 +180,8 @@ grub_stage2 (void)
 
 #ifdef HAVE_LIBCURSES
   /* Get into char-at-a-time mode. */
+  if (use_curses)
+    {
       initscr ();
       cbreak ();
       noecho ();
@@ -187,6 +189,7 @@ grub_stage2 (void)
       scrollok (stdscr, TRUE);
       keypad (stdscr, TRUE);
       nodelay (stdscr, TRUE);
+    }
 #endif
 
   /* Set our stack, and go for it. */
@@ -194,6 +197,7 @@ grub_stage2 (void)
   doit ();
 
 #ifdef HAVE_LIBCURSES
+  if (use_curses)
     endwin ();
 #endif
 
@@ -221,6 +225,7 @@ void
 stop (void)
 {
 #ifdef HAVE_LIBCURSES
+  if (use_curses)
     endwin ();
 #endif
   /* FIXME: If we don't exit, then we need to free our data areas. */
@@ -348,6 +353,7 @@ void
 cls (void)
 {
 #ifdef HAVE_LIBCURSES
+  if (use_curses)
     clear ();
 #endif
 }
@@ -359,10 +365,11 @@ getxy (void)
 {
   int y, x;
 #ifdef HAVE_LIBCURSES
+  if (use_curses)
     getyx (stdscr, y, x);
-#else
+  else
-  y = x = 0;
 #endif
+  y = x = 0;
   return (x << 8) | (y & 0xff);
 }
 
@@ -371,6 +378,7 @@ void
 gotoxy (int x, int y)
 {
 #ifdef HAVE_LIBCURSES
+  if (use_curses)
     move (y, x);
 #endif
 }
@@ -382,10 +390,11 @@ void
 grub_putchar (int c)
 {
 #ifdef HAVE_LIBCURSES
+  if (use_curses)
     addch (c);
-#else
+  else
-  putchar (c);
 #endif
+  putchar (c);
 }
 
 
@@ -394,14 +403,17 @@ int
 getkey (void)
 {
 #ifdef HAVE_LIBCURSES
+  if (use_curses)
+    {
       int c;
       nodelay (stdscr, FALSE);
       c = getch ();
       nodelay (stdscr, TRUE);
       return c;
-#else
+    }
-  return getchar ();
 #endif
+  
+  return getchar ();
 }
 
 
@@ -410,16 +422,19 @@ int
 checkkey (void)
 {
 #ifdef HAVE_LIBCURSES
+  if (use_curses)
+    {
       int c;
       c = getch ();
       /* If C is not ERR, then put it back in the input queue.  */
       if (c != ERR)
 	ungetch (c);	/* FIXME: ncurses-1.9.9g ungetch is buggy.  */
       return c;
-#else
+    }
+#endif
+  
   /* Just pretend they hit the space bar. */
   return ' ';
-#endif
 }
 
 
@@ -428,6 +443,8 @@ void
 set_attrib (int attr)
 {
 #ifdef HAVE_LIBCURSES
+  if (use_curses)
+    {
       /* FIXME: I don't know why, but chgat doesn't work as expected, so
 	 use this dirty way... - okuji  */
       chtype ch = inch ();
@@ -435,6 +452,7 @@ set_attrib (int attr)
 # if 0
       chgat (1, attr, 0, NULL);
 # endif
+    }
 #endif
 }
 

grub/main.c

@@ -32,6 +32,8 @@ int grub_stage2 (void);
 #include "shared.h"
 
 char *program_name = 0;
+int use_config_file = 1;
+int use_curses = 1;
 static int default_boot_drive;
 static int default_install_partition;
 static char *default_config_file;
@@ -42,6 +44,9 @@ static char *default_config_file;
 #define OPT_CONFIG_FILE -5
 #define OPT_INSTALL_PARTITION -6
 #define OPT_BOOT_DRIVE -7
+#define OPT_DISABLE_CONFIG_FILE -8
+#define OPT_DISABLE_CURSES -9
+#define OPT_BATCH -10
 #define OPTSTRING ""
 
 static struct option longopts[] =
@@ -52,6 +57,9 @@ static struct option longopts[] =
   {"config-file", required_argument, 0, OPT_CONFIG_FILE},
   {"install-partition", required_argument, 0, OPT_INSTALL_PARTITION},
   {"boot-drive", required_argument, 0, OPT_BOOT_DRIVE},
+  {"disable-config-file", no_argument, 0, OPT_DISABLE_CONFIG_FILE},
+  {"disable-curses", no_argument, 0, OPT_DISABLE_CURSES},
+  {"batch", no_argument, 0, OPT_BATCH},
   {0},
 };
 
@@ -68,8 +76,11 @@ Usage: %s [OPTION]...\n\
 \n\
 Enter the GRand Unified Bootloader command shell.\n\
 \n\
+    --batch                  turn on batch mode for non-interactive use\n\
     --boot-drive=DRIVE       specify stage2 boot_drive [default=0x%x]\n\
     --config-file=FILE       specify stage2 config_file [default=%s]\n\
+    --disable-config-file    disable to use the config file\n\
+    --disable-curses         disable to use curses\n\
     --help                   display this message and exit\n\
     --hold                   wait until a debugger will attach\n\
     --install-partition=PAR  specify stage2 install_partition [default=0x%x]\n\
@@ -140,6 +151,20 @@ main (int argc, char **argv)
 	    }
 	  break;
 
+	case OPT_DISABLE_CONFIG_FILE:
+	  use_config_file = 0;
+	  break;
+
+	case OPT_DISABLE_CURSES:
+	  use_curses = 0;
+	  break;
+
+	case OPT_BATCH:
+	  /* This is the same as "--disable-config-file --disable-curses".  */
+	  use_config_file = 0;
+	  use_curses = 0;
+	  break;
+
 	default:
 	  usage (1);
 	}

shared_src/cmdline.c

@@ -191,7 +191,7 @@ restart:
 	  if (password || errnum == ERR_BOOT_COMMAND)
 	    {
 	      printf("Press any key to continue...");
-	      (void) getc ();
+	      (void) getkey ();
 returnit:
 	      return 0;
 	    }
@@ -273,7 +273,7 @@ returnit:
     }
   else if (substring("pause", cur_heap) < 1)
     {
-      if (getc() == 27)
+      if (ASCII_CHAR (getkey ()) == 27)
 	return 1;
     }
   else if (substring("uppermem", cur_heap) < 1)

shared_src/shared.h

@@ -282,6 +282,14 @@ extern unsigned long boot_drive;
 extern char version_string[];
 extern char *config_file;
 
+#ifdef GRUB_UTIL
+/* If not using config file, this variable is set to zero,
+   otherwise non-zero.  */
+extern int use_config_file;
+/* If not using curses, this variable is set to zero, otherwise non-zero.  */
+extern int use_curses;
+#endif
+
 #ifndef STAGE1_5
 /* GUI interface variables. */
 extern int fallback;
@@ -427,10 +435,6 @@ void grub_putchar (int c);
    Use ASCII_CHAR(ret) to extract the ASCII code. */
 int getkey (void);
 
-/* returns 0 if non-ASCII character */
-#undef getc
-#define getc()  ASCII_CHAR (getkey ())
-
 /* Like GETKEY, but doesn't block, and returns -1 if no keystroke is
    available. */
 int checkkey (void);

shared_src/stage2.c

@@ -527,7 +527,11 @@ cmain(void)
        *  Here load the configuration file.
        */
 
+#ifdef GRUB_UTIL
+      if (use_config_file && grub_open (config_file))
+#else
       if (grub_open (config_file))
+#endif
 	{
 	  int state = 0, prev_config_len = 0, prev_menu_len = 0;
 	  char cmdline[1502], *ptr;