grub/commands/cat.c
okuji d9864ee11a 2005-08-22 Yoshinori K. Okuji <okuji@enbug.org>
* gendistlist.sh (EXTRA_DISTFILES): Added genfslist.sh.
        (DISTDIRS): Added io and video.
        Rewrite the search routine to make an output consistently.

        * DISTLIST: Added conf/sparc64-ieee1275.mk,
        conf/sparc64-ieee1275.rmk, include/grub/gzio.h,
        include/grub/ieee1275/ieee1275.h, include/grub/ieee1275/ofdisk.h,
        io/gzio.c, kern/sparc64/cache.c, kern/sparc64/dl.c,
        kern/sparc64/ieee1275/init.c, kern/sparc64/ieee1275/openfw.c and
        util/powerpc/ieee1275/misc.c.

        * include/grub/gzio.h: New file.
        * io/gzio.c: Likewise.

        * kern/file.c (grub_file_close): Call grub_device_close only if
        FILE->DEVICE is not NULL.

        * include/grub/mm.h [!NULL] (NULL): New macro.

        * include/grub/err.h (GRUB_ERR_BAD_GZIP_DATA): New constant.

        * conf/powerpc-ieee1275.rmk (grub_emu_SOURCES): Added io/gzip.c.
        (pkgdata_MODULES): Added gzio.mod.
        (gzio_mod_SOURCES): New variable.
        (gzio_mod_CFLAGS): Likewise.

        * conf/i386-pc.rmk (grub_emu_SOURCES): Added io/gzip.c.
        (pkgdata_MODULES): Added gzio.mod.
        (gzio_mod_SOURCES): New variable.
        (gzio_mod_CFLAGS): Likewise.

        * commands/cat.c: Include grub/gzio.h.
        (grub_cmd_cat): Use grub_gzfile_open instead of
        grub_file_open.

        * commands/cmp.c: Include grub/gzio.h.
        (grub_cmd_cmp): Use grub_gzfile_open instead of
        grub_file_open.

        * loader/i386/pc/multiboot.c: Include grub/gzio.h.
        (grub_rescue_cmd_multiboot): Use grub_gzfile_open instead of
        grub_file_open.
        (grub_rescue_cmd_module): Likewise.
2005-08-22 17:28:59 +00:00

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/* cat.c - command to show the contents of a file */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2003,2005 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 2 of the License, or
* (at your option) any later version.
*
* This program 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, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <grub/normal.h>
#include <grub/dl.h>
#include <grub/arg.h>
#include <grub/file.h>
#include <grub/disk.h>
#include <grub/term.h>
#include <grub/misc.h>
#include <grub/gzio.h>
static grub_err_t
grub_cmd_cat (struct grub_arg_list *state __attribute__ ((unused)),
int argc, char **args)
{
grub_file_t file;
char buf[GRUB_DISK_SECTOR_SIZE];
grub_ssize_t size;
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)
{
int i;
for (i = 0; i < size; i++)
{
unsigned char c = buf[i];
if (grub_isprint (c) || grub_isspace (c))
grub_putchar (c);
else
{
grub_setcolorstate (GRUB_TERM_COLOR_HIGHLIGHT);
grub_printf ("<%x>", (int) c);
grub_setcolorstate (GRUB_TERM_COLOR_STANDARD);
}
}
}
grub_putchar ('\n');
grub_refresh ();
grub_file_close (file);
return 0;
}
#ifdef GRUB_UTIL
void
grub_cat_init (void)
{
grub_register_command ("cat", grub_cmd_cat, GRUB_COMMAND_FLAG_BOTH,
"cat FILE", "Show the contents of a file.", 0);
}
void
grub_cat_fini (void)
{
grub_unregister_command ("cat");
}
#else /* ! GRUB_UTIL */
GRUB_MOD_INIT
{
(void) mod; /* To stop warning. */
grub_register_command ("cat", grub_cmd_cat, GRUB_COMMAND_FLAG_BOTH,
"cat FILE", "Show the contents of a file.", 0);
}
GRUB_MOD_FINI
{
grub_unregister_command ("cat");
}
#endif /* ! GRUB_UTIL */