File: MACLookup.h

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/***************************************************************************
 * MACLookup.h -- This relatively simple system handles looking up the     *
 * vendor registered to a MAC address using the nmap-mac-prefixes          *
 * database.                                                               *
 *                                                                         *
 ***********************IMPORTANT NMAP LICENSE TERMS************************
 *
 * The Nmap Security Scanner is (C) 1996-2024 Nmap Software LLC ("The Nmap
 * Project"). Nmap is also a registered trademark of the Nmap Project.
 *
 * This program is distributed under the terms of the Nmap Public Source
 * License (NPSL). The exact license text applying to a particular Nmap
 * release or source code control revision is contained in the LICENSE
 * file distributed with that version of Nmap or source code control
 * revision. More Nmap copyright/legal information is available from
 * https://nmap.org/book/man-legal.html, and further information on the
 * NPSL license itself can be found at https://nmap.org/npsl/ . This
 * header summarizes some key points from the Nmap license, but is no
 * substitute for the actual license text.
 *
 * Nmap is generally free for end users to download and use themselves,
 * including commercial use. It is available from https://nmap.org.
 *
 * The Nmap license generally prohibits companies from using and
 * redistributing Nmap in commercial products, but we sell a special Nmap
 * OEM Edition with a more permissive license and special features for
 * this purpose. See https://nmap.org/oem/
 *
 * If you have received a written Nmap license agreement or contract
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 * choose to use and redistribute Nmap under those terms instead.
 *
 * The official Nmap Windows builds include the Npcap software
 * (https://npcap.com) for packet capture and transmission. It is under
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 * permission. So the official Nmap Windows builds may not be redistributed
 * without special permission (such as an Nmap OEM license).
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 * The free version of Nmap is distributed in the hope that it will be
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 * Npcap OEM program--see https://nmap.org/oem/
 *
 ***************************************************************************/

/* $Id: MACLookup.h 38790 2024-02-28 18:46:45Z dmiller $ */

#ifndef MACLOOKUP_H
#define MACLOOKUP_H

#include <nbase.h>

/* Takes a MAC address and returns the company which has registered the prefix.
   NULL is returned if no vendor is found for the given prefix or if there
   is some other error. */
const char *MACPrefix2Corp(const u8 *prefix);

/* Takes a string and looks through the table for a vendor name which
   contains that string. Sets the initial bytes in mac_data and returns the
   number of nibbles (half-bytes) set for the first matching entry found. If no
   entries match, leaves mac_data untouched and returns false.  Note that this
   is not particularly efficient and so should be rewritten if it is
   called often */
int MACCorp2Prefix(const char *vendorstr, u8 *mac_data);

#endif /* MACLOOKUP_H */