static void expand_fs(char *path, struct cramfs_inode *inode)
{
if (S_ISDIR(inode->mode))
do_directory(path, inode);
else if (S_ISREG(inode->mode))
do_file(path, inode);
else if (S_ISLNK(inode->mode))
do_symlink(path, inode);
else
do_special_inode(path, inode);
}
static void expand_fs(int pathlen, char *path, struct cramfs_inode *inode)
{
if (S_ISDIR(inode->mode)) {
int count = inode->size;
unsigned long offset = inode->offset << 2;
char *newpath = malloc(pathlen + 256);
if (count > 0 && offset < start_inode) {
start_inode = offset;
}
/* XXX - need to check end_inode for empty case? */
memcpy(newpath, path, pathlen);
newpath[pathlen] = '/';
pathlen++;
if (opt_verbose) {
print_node('d', inode, path);
}
if (opt_extract) {
mkdir(path, inode->mode);
change_file_status(path, inode);
}
while (count > 0) {
struct cramfs_inode *child = iget(offset);
int size;
int newlen = child->namelen << 2;
size = sizeof(struct cramfs_inode) + newlen;
count -= size;
offset += sizeof(struct cramfs_inode);
memcpy(newpath + pathlen, romfs_read(offset), newlen);
newpath[pathlen + newlen] = 0;
if ((pathlen + newlen) - strlen(newpath) > 3) {
fprintf(stderr, "%s: invalid cramfs--bad path length\n", filename);
exit(4);
}
expand_fs(strlen(newpath), newpath, child);
offset += newlen;
if (offset > end_inode) {
end_inode = offset;
}
}
return;
}
if (S_ISREG(inode->mode)) {
int fd = 0;
unsigned long offset = inode->offset << 2;
if (offset > 0 && offset < start_data) {
start_data = offset;
}
if (opt_verbose) {
print_node('f', inode, path);
}
if (opt_extract) {
fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, inode->mode);
}
if (inode->size) {
do_uncompress(fd, offset, inode->size);
}
if (opt_extract) {
close(fd);
change_file_status(path, inode);
}
return;
}
if (S_ISLNK(inode->mode)) {
unsigned long offset = inode->offset << 2;
if (offset < start_data) {
start_data = offset;
}
do_symlink(path, inode);
return;
}
else {
do_special_inode(path, inode);
return;
}
}