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--- third_party/openscreen/src/platform/impl/udp_socket_posix.cc.orig 2021-01-07 00:39:33 UTC
+++ third_party/openscreen/src/platform/impl/udp_socket_posix.cc
@@ -31,7 +31,7 @@ namespace openscreen {
namespace {
// 64 KB is the maximum possible UDP datagram size.
-#if !defined(OS_LINUX)
+#if !defined(OS_LINUX) && !defined(OS_BSD)
constexpr int kMaxUdpBufferSize = 64 << 10;
#endif
@@ -380,7 +380,7 @@ bool IsPacketInfo<in6_pktinfo>(cmsghdr* cmh) {
template <class SockAddrType, class PktInfoType>
ErrorOr<UdpPacket> ReceiveMessageInternal(int fd) {
int upper_bound_bytes;
-#if defined(OS_LINUX)
+#if defined(OS_LINUX) || defined(OS_BSD)
// This should return the exact size of the next message.
upper_bound_bytes = recv(fd, nullptr, 0, MSG_PEEK | MSG_TRUNC);
if (upper_bound_bytes == -1) {
@@ -408,7 +408,7 @@ ErrorOr<UdpPacket> ReceiveMessageInternal(int fd) {
// Although we don't do anything with the control buffer, on Linux
// it is required for the message to be properly read.
-#if defined(OS_LINUX)
+#if defined(OS_LINUX) || defined(OS_BSD)
alignas(alignof(cmsghdr)) uint8_t control_buffer[1024];
msg.msg_control = control_buffer;
msg.msg_controllen = sizeof(control_buffer);
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