int
vfs_link(char *old_path, char *new_path) {
int ret;
char *new_name;
struct inode *old_node, *new_dir;
if ((ret = vfs_lookup(old_path, &old_node)) != 0) {
return ret;
}
if ((ret = vfs_lookup_parent(new_path, &new_dir, &new_name)) != 0) {
vop_ref_dec(old_node);
return ret;
}
if (old_node->in_fs == NULL || old_node->in_fs != new_dir->in_fs) {
ret = -E_XDEV;
}
else {
ret = vop_link(new_dir, new_name, old_node);
}
vop_ref_dec(old_node);
vop_ref_dec(new_dir);
return ret;
}
void
dev_init(void) {
init_device(null);
init_device(stdin);
init_device(stdout);
init_device(disk0);
/* for Nand flash */
init_device(disk1);
init_device(tty);
//init_device(ashmem);
// link such as stdout
int ret;
char *new_name;
struct inode *old_node, *new_dir;
if ((ret = vfs_lookup("stdout:", &old_node)) != 0) {
kprintf("erho");
return;// ret;
}
if ((ret = vfs_lookup_parent("/dev", &new_dir, &new_name)) != 0) {
vop_ref_dec(old_node);
return;// ret;
}
// if (old_node->in_fs == NULL || old_node->in_fs != new_dir->in_fs) {
// ret = -E_XDEV;
// }
// else {
ret = vop_link(new_dir, new_name, old_node);
kprintf("odife%d\n", ret);
// }
vop_ref_dec(old_node);
vop_ref_dec(new_dir);
}
