Kernel: Add basic ZeroDevice to /dev/zero

kernel/kernel/Device/ZeroDevice.cpp

@@ -0,0 +1,22 @@
+#include <kernel/Device/ZeroDevice.h>
+#include <kernel/FS/DevFS/FileSystem.h>
+
+namespace Kernel
+{
+
+	BAN::ErrorOr<BAN::RefPtr<ZeroDevice>> ZeroDevice::create(mode_t mode, uid_t uid, gid_t gid)
+	{
+		auto* result = new ZeroDevice(mode, uid, gid, DevFileSystem::get().get_next_dev());
+		if (result == nullptr)
+			return BAN::Error::from_errno(ENOMEM);
+		return BAN::RefPtr<ZeroDevice>::adopt(result);
+	}
+
+
+	BAN::ErrorOr<size_t> ZeroDevice::read_impl(off_t, void* buffer, size_t bytes)
+	{
+		memset(buffer, 0, bytes);
+		return bytes;
+	}
+
+}