Make roken build on windows

Signed-off-by: Love Hornquist Astrand <lha@h5l.org>

lib/roken/sockstartup_w32.c

@@ -0,0 +1,77 @@
+/***********************************************************************
+ * Copyright (c) 2009, Secure Endpoints Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in
+ *   the documentation and/or other materials provided with the
+ *   distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ **********************************************************************/
+
+#ifdef HAVE_CONFIG_H
+#include<config.h>
+#endif
+
+#include <roken.h>
+
+#ifndef _WIN32
+#error Only implemented for Windows
+#endif
+
+volatile LONG _startup_count = 0;
+
+ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
+rk_WSAStartup(void)
+{
+    WSADATA wsad;
+
+    if (!WSAStartup( MAKEWORD(2, 2), &wsad )) {
+	if (wsad.wVersion != MAKEWORD(2, 2)) {
+	    /* huh? We can't use 2.2? */
+	    WSACleanup();
+	    return -1;
+	}
+
+	InterlockedIncrement(&_startup_count);
+	return 0;
+    }
+
+    return -1;
+}
+
+
+ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
+rk_WSACleanup(void)
+{
+    LONG l;
+
+    if ((l = InterlockedDecrement(&_startup_count)) < 0) {
+	l = InterlockedIncrement(&_startup_count) - 1;
+    }
+
+    if (l >= 0) {
+	return WSACleanup();
+    }
+    return -1;
+}