/* * *  BlueZ - Bluetooth protocol stack for Linux * *  Copyright (C) 2004-2008  Marcel Holtmann <marcel@holtmann.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 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA * */#ifdef HAVE_CONFIG_H#include <config.h>#endif#include <stdio.h>#include <errno.h>#include <fcntl.h>#include <unistd.h>#include <malloc.h>#include <string.h>#include <sys/stat.h>#include <sys/mman.h>#include "oui.h"/* http://standards.ieee.org/regauth/oui/oui.txt */#define OUIFILE "/var/lib/misc/oui.txt"char *ouitocomp(const char *oui){	struct stat st;	char *str, *map, *off, *end;	int fd;	fd = open("oui.txt", O_RDONLY);	if (fd < 0) {		fd = open(OUIFILE, O_RDONLY);		if (fd < 0) {			fd = open("/usr/share/misc/oui.txt", O_RDONLY);			if (fd < 0)				return NULL;		}	}	if (fstat(fd, &st) < 0) {		close(fd);		return NULL;	}	str = malloc(128);	if (!str) {		close(fd);		return NULL;	}	memset(str, 0, 128);	map = mmap(0, st.st_size, PROT_READ, MAP_SHARED, fd, 0);	if (!map || map == MAP_FAILED) {		free(str);		close(fd);		return NULL;	}	off = strstr(map, oui);	if (off) {		off += 18;		end = strpbrk(off, "\r\n");		strncpy(str, off, end - off);	} else {		free(str);		str = NULL;	}	munmap(map, st.st_size);	close(fd);	return str;}int oui2comp(const char *oui, char *comp, size_t size){	char *tmp;	tmp = ouitocomp(oui);	if (!tmp)		return -1;	snprintf(comp, size, "%s", tmp);	free(tmp);	return 0;}