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authorVikas Gorur <vikas@gluster.com>2009-09-17 05:56:24 +0000
committerAnand V. Avati <avati@dev.gluster.com>2009-09-22 06:13:32 -0700
commit239d2cbdb0a4c32df9f21de8385e2c466b934178 (patch)
tree75f85e25d6aa79e9503b85ad637cd184d6f1801b /libglusterfs/src/checksum.h
parent0def744b2e66e81ac37532b26716e83d3b8bc9dd (diff)
libglusterfs: Add checksum functions.
gf_rsync_weak_checksum: Calculates a simple 32-bit checksum. gf_rsync_strong_checksum: Calculates the MD5 checksum. The strong checksum function makes use of Christophe Devine's MD5 implementation (adapted from the rsync source code, version 3.0.6. <http://www.samba.org/ftp/rsync/>). Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
Diffstat (limited to 'libglusterfs/src/checksum.h')
-rw-r--r--libglusterfs/src/checksum.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/libglusterfs/src/checksum.h b/libglusterfs/src/checksum.h
new file mode 100644
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+++ b/libglusterfs/src/checksum.h
@@ -0,0 +1,29 @@
+/*
+ Copyright (c) 2009 Z RESEARCH, Inc. <http://www.zresearch.com>
+ This file is part of GlusterFS.
+
+ GlusterFS 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.
+
+ GlusterFS 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/>.
+*/
+
+#ifndef __CHECKSUM_H__
+#define __CHECKSUM_H__
+
+uint32_t
+gf_rsync_weak_checksum (char *buf, int32_t len);
+
+void
+gf_rsync_strong_checksum (char *buf, int32_t len, uint8_t *sum);
+
+#endif /* __CHECKSUM_H__ */