diff --git a/include/uapi/fcntl.h b/include/uapi/fcntl.h
index 83068c1..8373d6c 100644
--- a/include/uapi/fcntl.h
+++ b/include/uapi/fcntl.h
@@ -2,6 +2,8 @@
 #ifndef __ZINNIA_UAPI_FCNTL_H
 #define __ZINNIA_UAPI_FCNTL_H
 
+#include <uapi/types.h>
+
 #define __F_OK 0
 #define __X_OK 1
 #define __W_OK 2
@@ -40,4 +42,46 @@
 #define __AT_EACCESS          (1 << 11)
 #define __AT_EMPTY_PATH       (1 << 12)
 
+#define __F_DUPFD         0
+#define __F_GETFD         1
+#define __F_SETFD         2
+#define __F_GETFL         3
+#define __F_SETFL         4
+#define __F_GETLK         5
+#define __F_SETLK         6
+#define __F_SETLKW        7
+#define __F_SETOWN        8
+#define __F_GETOWN        9
+#define __F_SETOWN_EX     15
+#define __F_GETOWN_EX     16
+#define __F_OFD_GETLK     36
+#define __F_OFD_SETLK     37
+#define __F_OFD_SETLKW    38
+#define __F_DUPFD_CLOEXEC 1030
+
+#define __F_RDLCK 0
+#define __F_WRLCK 1
+#define __F_UNLCK 2
+
+#define __FD_CLOEXEC 1
+
+#define __SEEK_SET 0
+#define __SEEK_CUR 1
+#define __SEEK_END 2
+
+#define __POSIX_FADV_NORMAL     0
+#define __POSIX_FADV_RANDOM     1
+#define __POSIX_FADV_SEQUENTIAL 2
+#define __POSIX_FADV_WILLNEED   3
+#define __POSIX_FADV_DONTNEED   4
+#define __POSIX_FADV_NOREUSE    5
+
+struct __flock {
+    int16_t l_type;
+    int16_t l_whence;
+    __off_t l_start;
+    __off_t l_len;
+    __pid_t l_pid;
+};
+
 #endif
diff --git a/include/uapi/ioctls.h b/include/uapi/ioctls.h
new file mode 100644
index 0000000..b838d6c
--- /dev/null
+++ b/include/uapi/ioctls.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: Unlicense */
+#ifndef __ZINNIA_UAPI_IOCTLS_H
+#define __ZINNIA_UAPI_IOCTLS_H
+
+#define __FIONBIO 0x5421
+
+#endif
diff --git a/include/uapi/stat.h b/include/uapi/stat.h
index 4a0f7b5..f3aa853 100644
--- a/include/uapi/stat.h
+++ b/include/uapi/stat.h
@@ -32,6 +32,9 @@
 #define __S_IWRITE __S_IWUSR
 #define __S_IEXEC  __S_IXUSR
 
+#define __UTIME_NOW  ((1l << 30) - 1l)
+#define __UTIME_OMIT ((1l << 30) - 2l)
+
 struct __stat {
     __dev_t st_dev;
     __ino_t st_ino;
diff --git a/include/uapi/wait.h b/include/uapi/wait.h
new file mode 100644
index 0000000..41a46ab
--- /dev/null
+++ b/include/uapi/wait.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: Unlicense */
+#ifndef __ZINNIA_UAPI_WAIT_H
+#define __ZINNIA_UAPI_WAIT_H
+
+#define __WNOHANG    1
+#define __WUNTRACED  2
+#define __WSTOPPED   2
+#define __WEXITED    4
+#define __WCONTINUED 8
+#define __WNOWAIT    0x01000000
+
+#endif