public void SockaddrInTest()
{
var address1 = new SockaddrIn {
sin_family = UnixAddressFamily.AF_INET,
sin_port = Syscall.htons(5678),
sin_addr = NativeConvert.ToInAddr(IPAddress.Loopback),
};
var storage = address1.ToSockaddrStorage();
var address2 = SockaddrIn.FromSockaddrStorage(storage);
Assert.AreEqual(address1, address2);
var sockaddr = Sockaddr.FromSockaddrStorage(storage);
Assert.AreEqual(sockaddr.sa_family, address1.sa_family);
var storage2 = storage.ToSockaddrStorage();
Assert.AreEqual(storage, storage2);
var storage3 = new SockaddrStorage(123);
storage2.CopyTo(storage3);
Assert.AreEqual(storage, storage3);
Assert.AreEqual("{sin_family=AF_INET, sin_port=htons(5678), sin_addr=127.0.0.1}", address1.ToString());
}
[ExpectedException(typeof(ArgumentOutOfRangeException))] // IPPROTO_UDP not supported
#endif
public unsafe void SendMsgRecvMsgAddress()
{
WithSockets(UnixAddressFamily.AF_INET, UnixSocketType.SOCK_DGRAM, UnixSocketProtocol.IPPROTO_UDP, (so1, so2) => {
// Bind UDP socket so1 to 127.0.0.1 with dynamic port
var address = new SockaddrIn {
sin_family = UnixAddressFamily.AF_INET,
sin_port = Syscall.htons(0),
sin_addr = new InAddr(127, 0, 0, 1),
};
if (Syscall.bind(so1, address) < 0)
{
UnixMarshal.ThrowExceptionForLastError();
}
// Get actual port number using getsockname()
var actualAddress = new SockaddrIn();
if (Syscall.getsockname(so1, actualAddress) < 0)
{
UnixMarshal.ThrowExceptionForLastError();
}
Assert.AreEqual(actualAddress.sa_family, UnixAddressFamily.AF_INET);
var port = Syscall.ntohs(actualAddress.sin_port);
Assert.IsTrue(port != 0);
var remoteAddress = new SockaddrIn {
sin_family = UnixAddressFamily.AF_INET,
sin_port = Syscall.htons(port),
sin_addr = new InAddr(127, 0, 0, 1),
};
// Send and receive a few bytes
long ret;
var buffer1 = new byte[] { 42, 43, 44 };
fixed(byte *ptr_buffer1 = buffer1)
{
var iovecs1 = new Iovec[] {
new Iovec {
iov_base = (IntPtr)ptr_buffer1,
iov_len = (ulong)buffer1.Length,
},
};
var msghdr1 = new Msghdr {
msg_name = remoteAddress,
msg_iov = iovecs1,
msg_iovlen = 1,
};
ret = Syscall.sendmsg(so2, msghdr1, 0);
msghdr1.msg_name = remoteAddress.ToSockaddrStorage();
if (ret >= 0)
{
ret = Syscall.sendmsg(so2, msghdr1, 0);
}
}
if (ret < 0)
{
UnixMarshal.ThrowExceptionForLastError();
}
var senderAddress = new SockaddrIn();
var senderAddressStorage = new SockaddrStorage();
var buffer2 = new byte[1024];
var buffer3 = new byte[1024];
fixed(byte *ptr_buffer2 = buffer2, ptr_buffer3 = buffer3)
{
var iovecs2 = new Iovec[] {
new Iovec {
iov_base = (IntPtr)ptr_buffer2,
iov_len = (ulong)buffer2.Length,
},
};
var msghdr2 = new Msghdr {
msg_name = senderAddress,
msg_iov = iovecs2,
msg_iovlen = 1,
};
ret = Syscall.recvmsg(so1, msghdr2, 0);
msghdr2.msg_name = senderAddressStorage;
iovecs2[0].iov_base = (IntPtr)ptr_buffer3;
if (ret >= 0)
{
ret = Syscall.recvmsg(so1, msghdr2, 0);
}
}
if (ret < 0)
{
UnixMarshal.ThrowExceptionForLastError();
}
Assert.AreEqual(senderAddress.sa_family, UnixAddressFamily.AF_INET);
Assert.AreEqual(senderAddress.sin_addr, new InAddr(127, 0, 0, 1));
var senderAddress2 = SockaddrIn.FromSockaddrStorage(senderAddressStorage);
Assert.AreEqual(senderAddress2.sa_family, UnixAddressFamily.AF_INET);
Assert.AreEqual(senderAddress2.sin_addr, new InAddr(127, 0, 0, 1));
Assert.AreEqual(buffer1.Length, ret);
for (int i = 0; i < buffer1.Length; i++)
{
Assert.AreEqual(buffer1[i], buffer2[i]);
}
for (int i = 0; i < buffer1.Length; i++)
{
Assert.AreEqual(buffer1[i], buffer3[i]);
}
});
}