ws2_32/tests: Test setting SO_ACCEPTCONN.

dlls/ws2_32/tests/sock.c

@@ -2856,6 +2856,18 @@ static void test_listen(void)
     ok (!ret, "getsockopt failed\n");
     ok (acceptc == 0, "SO_ACCEPTCONN should be 0, received %d\n", acceptc);
 
+    acceptc = 1;
+    WSASetLastError(0xdeadbeef);
+    ret = setsockopt(fdA, SOL_SOCKET, SO_ACCEPTCONN, (char *)&acceptc, sizeof(acceptc));
+    ok(ret == -1, "expected failure\n");
+    ok(WSAGetLastError() == WSAENOPROTOOPT, "got error %u\n", WSAGetLastError());
+
+    acceptc = 0;
+    WSASetLastError(0xdeadbeef);
+    ret = setsockopt(fdA, SOL_SOCKET, SO_ACCEPTCONN, (char *)&acceptc, sizeof(acceptc));
+    ok(ret == -1, "expected failure\n");
+    ok(WSAGetLastError() == WSAENOPROTOOPT, "got error %u\n", WSAGetLastError());
+
     ok (!listen(fdA, 0), "listen failed\n");
     ok (!listen(fdA, SOMAXCONN), "double listen failed\n");
 
@@ -2864,6 +2876,18 @@ static void test_listen(void)
     ok (!ret, "getsockopt failed\n");
     ok (acceptc == 1, "SO_ACCEPTCONN should be 1, received %d\n", acceptc);
 
+    acceptc = 1;
+    WSASetLastError(0xdeadbeef);
+    ret = setsockopt(fdA, SOL_SOCKET, SO_ACCEPTCONN, (char *)&acceptc, sizeof(acceptc));
+    ok(ret == -1, "expected failure\n");
+    ok(WSAGetLastError() == WSAENOPROTOOPT, "got error %u\n", WSAGetLastError());
+
+    acceptc = 0;
+    WSASetLastError(0xdeadbeef);
+    ret = setsockopt(fdA, SOL_SOCKET, SO_ACCEPTCONN, (char *)&acceptc, sizeof(acceptc));
+    ok(ret == -1, "expected failure\n");
+    ok(WSAGetLastError() == WSAENOPROTOOPT, "got error %u\n", WSAGetLastError());
+
     SetLastError(0xdeadbeef);
     ok ((listen(fdB, SOMAXCONN) == SOCKET_ERROR), "listen did not fail\n");
     ret = WSAGetLastError();