grub/commands/cat.c
carles fdcdbb6633 2009-12-26 Carles Pina i Estany <carles@pina.cat>
* commands/help.c (grub_cmd_help): Print the command name before the
	summary.
	(GRUB_MOD_INIT): Remove command name from the summary.
	* kern/command.c (GRUB_MOD_INIT): If summary is null assign an empty
	strig as summary.
	* lib/arg.c (find_long): Print the command name before the summary.
	* commands/acpi.c (GRUB_MOD_INIT): Remove command name from the
	summary.
	* commands/blocklist.c (GRUB_MOD_INIT): Likewise.
	* commands/cat.c (GRUB_MOD_INIT): Likewise.
	* commands/cmp.c (GRUB_MOD_INIT): Likewise.
	* commands/configfile.c (GRUB_MOD_INIT): Likewise.
	* commands/crc.c (GRUB_MOD_INIT): Likewise.
	* commands/date.c (GRUB_MOD_INIT): Likewise.
	* commands/echo.c (GRUB_MOD_INIT): Likewise.
	* commands/efi/loadbios.c (GRUB_MOD_INIT): Likewise.
	* commands/gptsync.c (GRUB_MOD_INIT): Likewise.
	* commands/handler.c (GRUB_MOD_INIT): Likewise.
	* commands/hdparm.c (GRUB_MOD_INIT): Likewise.
	* commands/hexdump.c (GRUB_MOD_INIT): Likewise.
	* commands/i386/cpuid.c (GRUB_MOD_INIT): Likewise.
	* commands/i386/pc/halt.c (GRUB_MOD_INIT): Likewise.
	* commands/i386/pc/play.c (GRUB_MOD_INIT): Likewise.
	* commands/i386/pc/pxecmd.c (GRUB_MOD_INIT): Likewise.
	* commands/keystatus.c (GRUB_MOD_INIT): Likewise.
	* commands/loadenv.c (GRUB_MOD_INIT): Likewise.
	* commands/ls.c (GRUB_MOD_INIT): Likewise.
	* commands/lspci.c (GRUB_MOD_INIT): Likewise.
	* commands/memrw.c (GRUB_MOD_INIT): Likewise.
	* commands/minicmd.c (GRUB_MOD_INIT): Likewise.
	* commands/parttool.c (GRUB_MOD_INIT): Likewise.
	* commands/password.c (GRUB_MOD_INIT): Likewise.
	* commands/probe.c (GRUB_MOD_INIT): Likewise.
	* commands/read.c (GRUB_MOD_INIT): Likewise.
	* commands/search.c (GRUB_MOD_INIT): Likewise.
	* commands/sleep.c (GRUB_MOD_INIT): Likewise.
	* commands/test.c (GRUB_MOD_INIT): Likewise.
	* commands/xnu_uuid.c (GRUB_MOD_INIT): Likewise.
	* efiemu/main.c (GRUB_MOD_INIT): Likewise.
	* font/font_cmd.c (GRUB_MOD_INIT): Likewise.
	* gettext/gettext.c (GRUB_MOD_INIT): Likewise.
	* kern/corecmd.c (GRUB_MOD_INIT): Likewise.
	* lib/arg.c (GRUB_MOD_INIT): Likewise.
	* loader/efi/appleloader.c (GRUB_MOD_INIT): Likewise.
	* loader/i386/bsd.c (GRUB_MOD_INIT): Likewise.
	* loader/xnu.c (GRUB_MOD_INIT): Likewise.
	* mmap/mmap.c (GRUB_MOD_INIT): Likewise.
	* term/terminfo.c (GRUB_MOD_INIT): Likewise.
	* video/readers/jpeg.c (GRUB_MOD_INIT): Likewise.
	* video/readers/png.c (GRUB_MOD_INIT): Likewise.
	* video/readers/tga.c (GRUB_MOD_INIT): Likewise.
2009-12-26 00:50:59 +01:00

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/* cat.c - command to show the contents of a file */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2003,2005,2007,2008 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 <grub/dl.h>
#include <grub/file.h>
#include <grub/disk.h>
#include <grub/term.h>
#include <grub/misc.h>
#include <grub/gzio.h>
#include <grub/command.h>
static grub_err_t
grub_cmd_cat (grub_command_t cmd __attribute__ ((unused)),
int argc, char **args)
{
grub_file_t file;
char buf[GRUB_DISK_SECTOR_SIZE];
grub_ssize_t size;
int key = 0;
if (argc != 1)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "file name required");
file = grub_gzfile_open (args[0], 1);
if (! file)
return 0;
while ((size = grub_file_read (file, buf, sizeof (buf))) > 0
&& key != GRUB_TERM_ESC)
{
int i;
for (i = 0; i < size; i++)
{
unsigned char c = buf[i];
if ((grub_isprint (c) || grub_isspace (c)) && c != '\r')
grub_putchar (c);
else
{
grub_setcolorstate (GRUB_TERM_COLOR_HIGHLIGHT);
grub_printf ("<%x>", (int) c);
grub_setcolorstate (GRUB_TERM_COLOR_STANDARD);
}
}
while (grub_checkkey () >= 0 &&
(key = GRUB_TERM_ASCII_CHAR (grub_getkey ())) != GRUB_TERM_ESC)
;
}
grub_putchar ('\n');
grub_refresh ();
grub_file_close (file);
return 0;
}
static grub_command_t cmd;
GRUB_MOD_INIT(cat)
{
cmd = grub_register_command_p1 ("cat", grub_cmd_cat,
"FILE", "Show the contents of a file.");
}
GRUB_MOD_FINI(cat)
{
grub_unregister_command (cmd);
}