diff --git a/utshell-0.5/r_input/src/lib.rs b/utshell-0.5/r_input/src/lib.rs
index 8e09f964acd1371e9189e26f1bc6b17bb0d893f3..264ca4527ca0cb5790674f82cc67eafc0841ec10 100644
--- a/utshell-0.5/r_input/src/lib.rs
+++ b/utshell-0.5/r_input/src/lib.rs
@@ -81,4 +81,29 @@ pub type __ssize_t = libc::c_long;
 pub type __syscall_slong_t = libc::c_long;
 pub type __sig_atomic_t = libc::c_int;
 pub type off_t = __off_t;
-pub type ssize_t = __ssize_t;
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+pub type ssize_t = __ssize_t;
+#[derive(Copy, Clone)]
+#[repr(C)]
+pub struct timespec {
+    pub tv_sec: __time_t,
+    pub tv_nsec: __syscall_slong_t,
+}
+#[derive(Copy, Clone)]
+#[repr(C)]
+pub struct stat {
+    pub st_dev: __dev_t,
+    pub st_ino: __ino_t,
+    pub st_nlink: __nlink_t,
+    pub st_mode: __mode_t,
+    pub st_uid: __uid_t,
+    pub st_gid: __gid_t,
+    pub __pad0: libc::c_int,
+    pub st_rdev: __dev_t,
+    pub st_size: __off_t,
+    pub st_blksize: __blksize_t,
+    pub st_blocks: __blkcnt_t,
+    pub st_atim: timespec,
+    pub st_mtim: timespec,
+    pub st_ctim: timespec,
+    pub __glibc_reserved: [__syscall_slong_t; 3],
+}
\ No newline at end of file