add minimal winsock->BSD networking header shims

also add license header to existing shims

include/sys/ioctl.h

@@ -0,0 +1,11 @@
+/*
+ * Public domain
+ * sys/ioctl.h compatibility shim
+ */
+
+#ifndef _WIN32
+#include_next <sys/ioctl.h>
+#else
+#include <win32netcompat.h>
+#define ioctl(fd, type, arg) ioctlsocket(fd, type, arg)
+#endif

include/sys/mman.h

@@ -1,3 +1,8 @@
+/*
+ * Public domain
+ * sys/mman.h compatibility shim
+ */
+
 #include_next <sys/mman.h>
 
 #ifndef LIBCRYPTOCOMPAT_MMAN_H

include/sys/select.h

@@ -0,0 +1,10 @@
+/*
+ * Public domain
+ * sys/select.h compatibility shim
+ */
+
+#ifndef _WIN32
+#include_next <sys/select.h>
+#else
+#include <win32netcompat.h>
+#endif

include/sys/socket.h

@@ -0,0 +1,10 @@
+/*
+ * Public domain
+ * sys/socket.h compatibility shim
+ */
+
+#ifndef _WIN32
+#include_next <sys/socket.h>
+#else
+#include <win32netcompat.h>
+#endif

include/sys/times.h

@@ -0,0 +1,10 @@
+/*
+ * Public domain
+ * sys/times.h compatibility shim
+ */
+
+#ifndef _WIN32
+#include_next <sys/times.h>
+#else
+#include <win32netcompat.h>
+#endif

include/sys/types.h

@@ -1,3 +1,8 @@
+/*
+ * Public domain
+ * sys/types.h compatibility shim
+ */
+
 #include_next <sys/types.h>
 
 #ifndef LIBCRYPTOCOMPAT_SYS_TYPES_H