grub/lib/hexdump.c

86 lines
2 KiB
C
Raw Normal View History

/* hexdump.c - hexdump function */
/*
* GRUB -- GRand Unified Bootloader
2010-01-03 Robert Millan <rmh.grub@aybabtu.com> * boot/i386/pc/boot.S: Update copyright year. * boot/i386/pc/cdboot.S: Likewise. * boot/i386/pc/diskboot.S: Likewise. * boot/i386/pc/lnxboot.S: Likewise. * boot/i386/pc/pxeboot.S: Likewise. * bus/pci.c: Likewise. * commands/cmp.c: Likewise. * commands/help.c: Likewise. * commands/hexdump.c: Likewise. * commands/i386/pc/halt.c: Likewise. * commands/i386/pc/play.c: Likewise. * commands/i386/pc/vbeinfo.c: Likewise. * commands/ls.c: Likewise. * commands/test.c: Likewise. * disk/dmraid_nvidia.c: Likewise. * disk/i386/pc/biosdisk.c: Likewise. * disk/ieee1275/nand.c: Likewise. * disk/ieee1275/ofdisk.c: Likewise. * disk/lvm.c: Likewise. * disk/raid.c: Likewise. * disk/raid6_recover.c: Likewise. * disk/scsi.c: Likewise. * fs/affs.c: Likewise. * fs/cpio.c: Likewise. * fs/ext2.c: Likewise. * fs/hfs.c: Likewise. * fs/iso9660.c: Likewise. * fs/ntfs.c: Likewise. * fs/sfs.c: Likewise. * fs/udf.c: Likewise. * fs/ufs.c: Likewise. * fs/xfs.c: Likewise. * gencmdlist.sh: Likewise. * genmk.rb: Likewise. * include/grub/disk.h: Likewise. * include/grub/efi/api.h: Likewise. * include/grub/efi/efi.h: Likewise. * include/grub/efi/pe32.h: Likewise. * include/grub/elf.h: Likewise. * include/grub/fs.h: Likewise. * include/grub/i386/at_keyboard.h: Likewise. * include/grub/i386/pc/memory.h: Likewise. * include/grub/i386/pc/vbe.h: Likewise. * include/grub/i386/pci.h: Likewise. * include/grub/i386/tsc.h: Likewise. * include/grub/ieee1275/ieee1275.h: Likewise. * include/grub/ntfs.h: Likewise. * include/grub/sparc64/ieee1275/ieee1275.h: Likewise. * include/grub/sparc64/libgcc.h: Likewise. * include/grub/symbol.h: Likewise. * include/grub/types.h: Likewise. * include/multiboot2.h: Likewise. * io/gzio.c: Likewise. * kern/device.c: Likewise. * kern/disk.c: Likewise. * kern/efi/efi.c: Likewise. * kern/efi/mm.c: Likewise. * kern/elf.c: Likewise. * kern/file.c: Likewise. * kern/i386/dl.c: Likewise. * kern/i386/pc/init.c: Likewise. * kern/i386/pc/startup.S: Likewise. * kern/ieee1275/ieee1275.c: Likewise. * kern/ieee1275/init.c: Likewise. * kern/main.c: Likewise. * kern/mm.c: Likewise. * kern/powerpc/dl.c: Likewise. * kern/sparc64/dl.c: Likewise. * kern/x86_64/dl.c: Likewise. * lib/hexdump.c: Likewise. * loader/efi/appleloader.c: Likewise. * loader/i386/ieee1275/linux.c: Likewise. * loader/i386/pc/chainloader.c: Likewise. * loader/i386/pc/linux.c: Likewise. * loader/i386/pc/multiboot2.c: Likewise. * loader/ieee1275/multiboot2.c: Likewise. * loader/multiboot2.c: Likewise. * loader/multiboot_loader.c: Likewise. * loader/powerpc/ieee1275/linux.c: Likewise. * normal/completion.c: Likewise. * normal/menu_entry.c: Likewise. * partmap/apple.c: Likewise. * util/grub.d/10_hurd.in: Likewise. * util/hostfs.c: Likewise. * video/readers/png.c: Likewise.
2010-01-03 22:05:07 +00:00
* Copyright (C) 2008,2009 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/types.h>
#include <grub/misc.h>
#include <grub/lib/hexdump.h>
void
hexdump (unsigned long bse, char *buf, int len)
{
int pos;
char line[80];
while (len > 0)
{
int cnt, i;
2009-12-29 09:04:06 +00:00
pos = grub_snprintf (line, sizeof (line), "%08lx ", bse);
cnt = 16;
if (cnt > len)
cnt = len;
for (i = 0; i < cnt; i++)
{
2009-12-29 09:04:06 +00:00
pos += grub_snprintf (&line[pos], sizeof (line) - pos,
"%02x ", (unsigned char) buf[i]);
if ((i & 7) == 7)
line[pos++] = ' ';
}
for (; i < 16; i++)
{
2009-12-29 09:04:06 +00:00
pos += grub_snprintf (&line[pos], sizeof (line) - pos, " ");
if ((i & 7) == 7)
line[pos++] = ' ';
}
line[pos++] = '|';
for (i = 0; i < cnt; i++)
line[pos++] = ((buf[i] >= 32) && (buf[i] < 127)) ? buf[i] : '.';
line[pos++] = '|';
line[pos] = 0;
grub_printf ("%s\n", line);
/* Print only first and last line if more than 3 lines are identical. */
if (len >= 4 * 16
&& ! grub_memcmp (buf, buf + 1 * 16, 16)
&& ! grub_memcmp (buf, buf + 2 * 16, 16)
&& ! grub_memcmp (buf, buf + 3 * 16, 16))
{
grub_printf ("*\n");
do
{
bse += 16;
buf += 16;
len -= 16;
}
while (len >= 3 * 16 && ! grub_memcmp (buf, buf + 2 * 16, 16));
}
bse += 16;
buf += 16;
len -= cnt;
}
}