OrionLibC

diff --git a/sys/ioctl.c b/sys/ioctl.c
new file mode 100644
index 0000000..db6d27d
--- /dev/null
+++ b/sys/ioctl.c
@@ -0,0 +1,17 @@
+#include <sys/syscall.h>
+#include <sys/ioctl.h>
+#include <errno.h>
+
+/* Send an I/O Control request to a file descriptor */
+int
+ioctl(int fd, unsigned long request, ...)
+{
+	int ret;
+	asm volatile("int $0x80" : "=a" (ret) : "0" (SYSCALL_IOCTL),
+	             "c" (3), "S" (&fd));
+
+	if (ret >= 0)
+		return ret;
+	errno = -ret;
+	return -1;
+}