inode.c

#include "ext4.h"


int main (int argc, char *argv[])
{
	int f;
	int index = 0;
	int itable ;
	struct ext4_inode ext4_inode;
	struct ext4_group_desc gd ;

	if (argc < 3) {
		printf ("Throw me an Disk name Inode boss !!\n");
		return 1;
	}

	f = open(DISK_NAME, O_RDONLY);

	if ( f == -1 ) {
		printf ("run with root permissions\n");
		return -1;
	}

	memset(&ext4_inode, 0, sizeof (ext4_inode));

	memset(&gd, 0, sizeof (gd));

	int inode = atoi(argv[2]) -1;

	int group = inode/8192 ;

	int index_1 = inode % 8192;

	int offset = index_1 * 256;

	int gd_count = get_gd_count(f);

	//printf ("gd size %d\n", gd_count);

	lseek(f, 1024+1024, SEEK_CUR);

	// leave out these x86 boot sector and padding && //readout superblock 

	lseek(f, 32 * (sizeof(struct ext4_group_desc)), SEEK_CUR);

	int size_of_gd = get_desc_size(f);
	
	for (; index < gd_count; index++){

		read(f, &gd, size_of_gd);

		if  (gd.bg_checksum && index == group) {

			print_gd_info(index, &gd) ;

			itable = (((ext4_64_t)(gd.bg_inode_table_hi) << 32) | gd.bg_inode_table_lo);

			DEBUG_EXT4 ("Itable at %d\n", itable);

			memset(&gd, 0, sizeof (gd));
		}
	}

	lseek(f, 0, SEEK_SET);

	lseek(f, itable*4096L, SEEK_CUR);

	lseek(f, offset, SEEK_CUR);

	read(f, &ext4_inode, sizeof (struct ext4_inode));

	printf ("%d\n",S_ISDIR(ext4_inode.i_mode));

	printf ("pid %d \n", getpid());

	convert_epoch(ext4_inode.i_atime);
	convert_epoch(ext4_inode.i_mtime);
	convert_epoch(ext4_inode.i_ctime);
	convert_epoch(ext4_inode.i_dtime);

	while(1);
}