Extract the CRC-32 code from the 802.11 dissector into a separate file,

and use it in the Ethernet dissector as well, to check the FCS in
Ethernet frames, if present.

svn path=/trunk/; revision=8265

1 files changed, 29 insertions, 0 deletions

diff --git a/crc32.h b/crc32.h
new file mode 100644
index 0000000000..36d952bbd4
--- /dev/null
+++ b/crc32.h
@@ -0,0 +1,29 @@
+/* crc32.h
+ * Declaration of CRC-32 routine and table
+ *
+ * $Id: crc32.h,v 1.1 2003/08/26 05:09:55 guy Exp $
+ *
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@ethereal.com>
+ * Copyright 1998 Gerald Combs
+ *
+ * Copied from README.developer
+ *
+ * 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 2
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+extern const guint32 crc32_table[256];
+
+extern guint32 crc32(const unsigned char* buf, unsigned int len);