1 files changed, 30 insertions, 0 deletions
diff --git a/src/include/libpq/ifaddr.h b/src/include/libpq/ifaddr.h
new file mode 100644
index 00000000000..40094a612a4
--- /dev/null
+++ b/src/include/libpq/ifaddr.h
@@ -0,0 +1,30 @@
+/*-------------------------------------------------------------------------
+ *
+ * ifaddr.h
+ *	  IP netmask calculations, and enumerating network interfaces.
+ *
+ * Copyright (c) 2003-2016, PostgreSQL Global Development Group
+ *
+ * src/include/libpq/ifaddr.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef IFADDR_H
+#define IFADDR_H
+
+#include "libpq/pqcomm.h"		/* pgrminclude ignore */
+
+typedef void (*PgIfAddrCallback) (struct sockaddr * addr,
+											  struct sockaddr * netmask,
+											  void *cb_data);
+
+extern int pg_range_sockaddr(const struct sockaddr_storage * addr,
+				  const struct sockaddr_storage * netaddr,
+				  const struct sockaddr_storage * netmask);
+
+extern int pg_sockaddr_cidr_mask(struct sockaddr_storage * mask,
+					  char *numbits, int family);
+
+extern int	pg_foreach_ifaddr(PgIfAddrCallback callback, void *cb_data);
+
+#endif   /* IFADDR_H */