**the image has some files on it and I have been able to read the names but I couldn't get the content of all files at once , I have been able to find the root directory content with the inode number but what if the directory changed ? NOTE: I am working on vmware work station and in c language
**
this part shows that I can read root i-node which it's number is 2 I want to read the rest of i-nodes not based on it's number although
/* show entries in the root directory */
read_inode(fd, 2, &group, &inode); /* read inode 2 (root directory) */
read_dir(fd, &inode, &group);
close(fd);
exit(0);
} /* main() */
static
void read_inode(int fd, int inode_no, const struct ext2_group_desc *group, struct ext2_inode *inode)
{
lseek(fd, BLOCK_OFFSET(group->bg_inode_table)+(inode_no-1)*sizeof(struct ext2_inode),
SEEK_SET);
read(fd, inode, sizeof(struct ext2_inode));
} /* read_inode() */
static void read_dir(int fd, const struct ext2_inode *inode, const struct ext2_group_desc *group)
{
void *block;
if (S_ISDIR(inode->i_mode)) {
struct ext2_dir_entry_2 *entry;
unsigned int size = 0;
if ((block = malloc(block_size)) == NULL) { /* allocate memory for the data block */
fprintf(stderr, "Memory error\n");
close(fd);
exit(1);
}
lseek(fd, BLOCK_OFFSET(inode->i_block[0]), SEEK_SET);
read(fd, block, block_size); /* read block from disk*/
entry = (struct ext2_dir_entry_2 *) block; /* first entry in the directory */
/* Notice that the list may be terminated with a NULL
entry (entry->inode == NULL)*/
while((size < inode->i_size) && entry->inode) {
char file_name[EXT2_NAME_LEN+1];
memcpy(file_name, entry->name, entry->name_len);
file_name[entry->name_len] = 0; /* append null character to the file name */
printf("%10u %s\n", entry->inode, file_name);
entry = (void*) entry + entry->rec_len;
size += entry->rec_len;
}
free(block);
}
} /* read_dir() */
