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-rw-r--r--src/include/libpq/ifaddr.h30
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 0000000..e6ef141
--- /dev/null
+++ b/src/include/libpq/ifaddr.h
@@ -0,0 +1,30 @@
+/*-------------------------------------------------------------------------
+ *
+ * ifaddr.h
+ * IP netmask calculations, and enumerating network interfaces.
+ *
+ * Copyright (c) 2003-2021, 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 */