From 1a54d44a23de7b0bf0dfe62dd3d09d8167e5a597 Mon Sep 17 00:00:00 2001
From: Martin Mares <mj@ucw.cz>
Date: Mon, 10 May 1999 21:37:39 +0000
Subject: Added packet checksumming code. Watch the comments for an
 explanation.

---
 lib/checksum.h | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 lib/checksum.h

(limited to 'lib/checksum.h')

diff --git a/lib/checksum.h b/lib/checksum.h
new file mode 100644
index 0000000..8151554
--- /dev/null
+++ b/lib/checksum.h
@@ -0,0 +1,20 @@
+/*
+ *	BIRD Library -- IP One-Complement Checksum
+ *
+ *	(c) 1999 Martin Mares <mj@ucw.cz>
+ *
+ *	Can be freely distributed and used under the terms of the GNU GPL.
+ */
+
+#ifndef _BIRD_CHECKSUM_H_
+#define _BIRD_CHECKSUM_H_
+
+/*
+ *	Both checksumming functions accept a vararg list of packet
+ *	fragments finished by NULL pointer.
+ */
+
+int ipsum_verify(void *frag, unsigned len, ...);
+u16 ipsum_calculate(void *frag, unsigned len, ...);
+
+#endif
-- 
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