wsdd2: fix msghdr initialization patch

Dockerfile

@@ -13,9 +13,11 @@ ADD "https://github.com/Netgear/wsdd2.git#${WSDD2_VERSION}" .
 
 # TODO: do cross-compilation in this stage to build wsdd2
 FROM crazymax/alpine-s6:${ALPINE_VERSION}-${S6_VERSION} AS wsdd2
-RUN apk --update --no-cache add linux-headers gcc make musl-dev
+RUN apk --update --no-cache add linux-headers gcc make musl-dev patch
 WORKDIR /src
 COPY --from=wsdd2-src /src /src
+COPY patches/wsdd2 /tmp/wsdd2-patches
+RUN patch -p1 < /tmp/wsdd2-patches/0001-fix-msghdr-initialization.patch
 RUN make DESTDIR=/dist install
 
 FROM crazymax/alpine-s6:${ALPINE_VERSION}-${S6_VERSION}

patches/wsdd2/0001-fix-msghdr-initialization.patch

@@ -0,0 +1,32 @@
+From 1be722c52a386d5e617cb245c5311ae79f77ff7d Mon Sep 17 00:00:00 2001
+From: CrazyMax <1951866+crazy-max@users.noreply.github.com>
+Date: Fri, 27 Dec 2024 15:40:27 +0100
+Subject: [PATCH] fix msghdr initialization
+
+---
+ wsdd2.c | 11 ++++++++++-
+ 1 file changed, 10 insertions(+), 1 deletion(-)
+
+diff --git a/wsdd2.c b/wsdd2.c
+index 4f91f6e..4d31544 100644
+--- a/wsdd2.c
++++ b/wsdd2.c
+@@ -543,7 +543,16 @@ static int netlink_recv(struct endpoint *ep)
+ 	char buf[PAGE_SIZE];
+ 	struct sockaddr_nl sa;
+ 	struct iovec iov = { buf, sizeof buf };
+-	struct msghdr msg = { &sa, sizeof sa, &iov, 1, NULL, 0, 0 };
++	struct msghdr msg = {
++		.msg_name = &sa,
++		.msg_namelen = sizeof(sa),
++		.msg_iov = &iov,
++		.msg_iovlen = 1,
++		.msg_control = NULL,
++		.msg_controllen = 0,
++		.msg_flags = 0,
++		.__pad2 = 0
++	};
+ 	ssize_t msglen = recvmsg(ep->sock, &msg, 0);
+
+ 	DEBUG(2, W, "%s: %zd bytes", __func__, msglen);
+--