From b68c3b7f551d0c0bbe238ffb2862763dc184aa89 Mon Sep 17 00:00:00 2001
From: Max Kellermann <max.kellermann@gmail.com>
Date: Thu, 18 Jan 2024 15:33:57 +0100
Subject: [PATCH] net/SocketDescriptor: disable msghdr methods on Windows

---
 src/net/SocketDescriptor.cxx | 11 ++++++++++-
 src/net/SocketDescriptor.hxx |  4 ++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/net/SocketDescriptor.cxx b/src/net/SocketDescriptor.cxx
index f255bd885..573c9c849 100644
--- a/src/net/SocketDescriptor.cxx
+++ b/src/net/SocketDescriptor.cxx
@@ -6,11 +6,12 @@
 #include "StaticSocketAddress.hxx"
 #include "IPv4Address.hxx"
 #include "IPv6Address.hxx"
-#include "MsgHdr.hxx"
 
 #ifdef _WIN32
 #include <ws2tcpip.h>
 #else
+#include "MsgHdr.hxx"
+
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <netinet/tcp.h>
@@ -418,6 +419,8 @@ SocketDescriptor::Receive(std::span<std::byte> dest, int flags) const noexcept
 	return ::recv(Get(), (char *)dest.data(), dest.size(), flags);
 }
 
+#ifndef _WIN32
+
 ssize_t
 SocketDescriptor::Receive(struct msghdr &msg, int flags) const noexcept
 {
@@ -431,6 +434,8 @@ SocketDescriptor::Receive(std::span<const struct iovec> v, int flags) const noex
 	return Receive(msg, flags);
 }
 
+#endif // !_WIN32
+
 ssize_t
 SocketDescriptor::Send(std::span<const std::byte> src, int flags) const noexcept
 {
@@ -441,6 +446,8 @@ SocketDescriptor::Send(std::span<const std::byte> src, int flags) const noexcept
 	return ::send(Get(), (const char *)src.data(), src.size(), flags);
 }
 
+#ifndef _WIN32
+
 ssize_t
 SocketDescriptor::Send(const struct msghdr &msg, int flags) const noexcept
 {
@@ -457,6 +464,8 @@ SocketDescriptor::Send(std::span<const struct iovec> v, int flags) const noexcep
 	return Send(MakeMsgHdr(v), flags);
 }
 
+#endif // !_WIN32
+
 ssize_t
 SocketDescriptor::ReadNoWait(std::span<std::byte> dest) const noexcept
 {
diff --git a/src/net/SocketDescriptor.hxx b/src/net/SocketDescriptor.hxx
index 94c59c34d..49ec6c74d 100644
--- a/src/net/SocketDescriptor.hxx
+++ b/src/net/SocketDescriptor.hxx
@@ -303,6 +303,7 @@ public:
 	[[nodiscard]]
 	ssize_t Receive(std::span<std::byte> dest, int flags=0) const noexcept;
 
+#ifndef _WIN32
 	/**
 	 * Wrapper for recvmsg().
 	 */
@@ -314,6 +315,7 @@ public:
 	 */
 	[[nodiscard]]
 	ssize_t Receive(std::span<const struct iovec> v, int flags=0) const noexcept;
+#endif // !_WIN32
 
 	/**
 	 * Wrapper for send().
@@ -323,6 +325,7 @@ public:
 	[[nodiscard]]
 	ssize_t Send(std::span<const std::byte> src, int flags=0) const noexcept;
 
+#ifndef _WIN32
 	/**
 	 * Wrapper for sendmsg().
 	 *
@@ -338,6 +341,7 @@ public:
 	 */
 	[[nodiscard]]
 	ssize_t Send(std::span<const struct iovec> v, int flags=0) const noexcept;
+#endif // !_WIN32
 
 	[[nodiscard]]
 	ssize_t Read(std::span<std::byte> dest) const noexcept {