From: Christian Brauner <christian.brauner@ubuntu.com>
Date: Tue, 23 Feb 2021 12:58:39 +0000 (+0100)
Subject: utils: add copy_struct_to_client()
X-Git-Tag: lxc-5.0.0~273^2~11
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9ec1d9db36272454482b52f511868dc8e11f9c7f;p=thirdparty%2Flxc.git

utils: add copy_struct_to_client()

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
---

diff --git a/src/lxc/utils.h b/src/lxc/utils.h
index f2b50e87b..49c0f3859 100644
--- a/src/lxc/utils.h
+++ b/src/lxc/utils.h
@@ -263,4 +263,12 @@ 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 */