[PATCH] nameser.h: explicitely include endian.h

[Jo-Philipp Wich <jo@mein.io>]

As nameser.h itself uses endian macros to declare the proper layout of
the HEADER structure, it needs to include the endian.h header as well.

The issue was found while investigating iodine query packet corruption
on little endian musl systems [1].

1: http://lists.infradead.org/pipermail/lede-dev/2017-November/010085.html

Signed-off-by: Jo-Philipp Wich <jo@mein.io>
---
 include/arpa/nameser.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/arpa/nameser.h b/include/arpa/nameser.h
index 581925a4..b315e0f3 100644
--- a/include/arpa/nameser.h
+++ b/include/arpa/nameser.h
@@ -7,6 +7,7 @@ extern "C" {
 
 #include <stddef.h>
 #include <stdint.h>
+#include <endian.h>
 
 #define __NAMESER	19991006
 #define NS_PACKETSZ	512
-- 
2.11.0