1 files changed, 60 insertions, 0 deletions
diff --git a/Kernel/API/POSIX/fcntl.h b/Kernel/API/POSIX/fcntl.h
new file mode 100644
index 0000000000..b28cefb678
--- /dev/null
+++ b/Kernel/API/POSIX/fcntl.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <Kernel/API/POSIX/sys/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define F_DUPFD 0
+#define F_GETFD 1
+#define F_SETFD 2
+#define F_GETFL 3
+#define F_SETFL 4
+#define F_ISTTY 5
+#define F_GETLK 6
+#define F_SETLK 7
+#define F_SETLKW 8
+
+#define FD_CLOEXEC 1
+
+#define O_RDONLY (1 << 0)
+#define O_WRONLY (1 << 1)
+#define O_RDWR (O_RDONLY | O_WRONLY)
+#define O_ACCMODE (O_RDONLY | O_WRONLY)
+#define O_EXEC (1 << 2)
+#define O_CREAT (1 << 3)
+#define O_EXCL (1 << 4)
+#define O_NOCTTY (1 << 5)
+#define O_TRUNC (1 << 6)
+#define O_APPEND (1 << 7)
+#define O_NONBLOCK (1 << 8)
+#define O_DIRECTORY (1 << 9)
+#define O_NOFOLLOW (1 << 10)
+#define O_CLOEXEC (1 << 11)
+#define O_DIRECT (1 << 12)
+
+#define F_RDLCK ((short)0)
+#define F_WRLCK ((short)1)
+#define F_UNLCK ((short)2)
+
+#define AT_FDCWD -100
+#define AT_SYMLINK_NOFOLLOW 0x100
+
+struct flock {
+    short l_type;
+    short l_whence;
+    off_t l_start;
+    off_t l_len;
+    pid_t l_pid;
+};
+
+#ifdef __cplusplus
+}
+#endif