1 files changed, 47 insertions, 0 deletions
diff --git a/src/arpa/inet/htonll.c b/src/arpa/inet/htonll.c
new file mode 100644
index 0000000..fdd8b06
--- /dev/null
+++ b/src/arpa/inet/htonll.c
@@ -0,0 +1,47 @@
+/**
+ * slibc — Yet another C library
+ * Copyright © 2015  Mattias Andrée (maandree@member.fsf.org)
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <arpa/inet.h>
+
+
+/**
+ * Convert a 64-bit quantity from host byte order
+ * (little endian) to network byte order.
+ * 
+ * This is a slibc extension.
+ * 
+ * @etymology  (H)ost byte order (to) (n)etwork byte order, (l)ong (l)ong.
+ * 
+ * @param   value  A 64-bit quantity to convert.
+ * @return         The value in network byte order.
+ * 
+ * @since  Always.
+ */
+uint64_t _htonll(uint64_t value)
+{
+  char rc[8];
+  rc[0] = (value >> 56) & 255;
+  rc[1] = (value >> 48) & 255;
+  rc[2] = (value >> 40) & 255;
+  rc[3] = (value >> 32) & 255;
+  rc[4] = (value >> 24) & 255;
+  rc[5] = (value >> 16) & 255;
+  rc[6] = (value >>  8) & 255;
+  rc[7] = (value >>  0) & 255;
+  return *(uint16_t*)rc;
+}
+