Issue: #83: Refactor: use htonll or ntohll if the os provides them

1 files changed, 28 insertions, 0 deletions

diff --git a/util.c b/util.c
index 083bff4..f935fac 100644
--- a/util.c
+++ b/util.c
@@ -103,3 +103,31 @@ void vperror(const char *fmt, ...) {
 
     perror(buf);
 }
+
+#ifndef HAVE_HTONLL
+static uint64_t mc_swap64(uint64_t in) {
+#ifdef ENDIAN_LITTLE
+    /* Little endian, flip the bytes around until someone makes a faster/better
+    * way to do this. */
+    int64_t rv = 0;
+    int i = 0;
+     for(i = 0; i<8; i++) {
+        rv = (rv << 8) | (in & 0xff);
+        in >>= 8;
+     }
+    return rv;
+#else
+    /* big-endian machines don't need byte swapping */
+    return in;
+#endif
+}
+
+uint64_t ntohll(uint64_t val) {
+   return mc_swap64(val);
+}
+
+uint64_t htonll(uint64_t val) {
+   return mc_swap64(val);
+}
+#endif
+