utils: add copy_struct_to_client()

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
lxc · Feb 26, 2021 · 89b2bfa · 89b2bfa
1 parent aa659ba
commit 89b2bfa
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/src/lxc/utils.h b/src/lxc/utils.h
@@ -261,4 +261,12 @@ static inline int copy_struct_from_client(__u32 server_size, void *dst,
 	return 0;
 }
 
+static inline __u32 copy_struct_to_client(__u32 client_size, void *dst,
+					  __u32 server_size, const void *src)
+{
+	__u32 size = min(server_size, client_size);
+	memcpy(dst, src, size);
+	return size;
+}
+
 #endif /* __LXC_UTILS_H */