Add ntohs, htons, ntohl, htons.

test/val/lib_common_htonl.c

@@ -0,0 +1,34 @@
+/*
+  !!DESCRIPTION!! A small test for htons.
+  !!ORIGIN!!
+  !!LICENCE!!
+  !!AUTHOR!! Colin Leroy-Mira
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <arpa/inet.h>
+
+static unsigned int Failures = 0;
+
+static void CheckHtonl (long input, long expected)
+{
+    long result = htonl(input);
+    if (result != expected) {
+        printf ("htonl error:\n"
+                "  result = %ld for %ld, should be %ld\n", result, input, expected);
+        ++Failures;
+    }
+}
+
+int main (void)
+{
+    CheckHtonl(0x00000000, 0x00000000);
+    CheckHtonl(0x12345678, 0x78563412);
+    CheckHtonl(0xAABBCCDD, 0xDDCCBBAA);
+    CheckHtonl(0xFFFFFFFF, 0xFFFFFFFF);
+
+    printf ("Failures: %u\n", Failures);
+
+    return Failures;
+}