mirror of
https://git.kernel.org/pub/scm/bluetooth/bluez.git
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110 lines
2.2 KiB
C
110 lines
2.2 KiB
C
/*
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*
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* BlueZ - Bluetooth protocol stack for Linux
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*
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* Copyright (C) 2004-2005 Marcel Holtmann <marcel@holtmann.org>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
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* CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
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* COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
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* SOFTWARE IS DISCLAIMED.
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*
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*
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* $Id$
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdio.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <malloc.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <sys/mman.h>
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#include "oui.h"
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/* http://standards.ieee.org/regauth/oui/oui.txt */
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#define OUIFILE "/usr/share/misc/oui.txt"
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char *ouitocomp(const char *oui)
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{
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struct stat st;
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char *str, *map, *off, *end;
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int fd;
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fd = open(OUIFILE, O_RDONLY);
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if (fd < 0)
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return NULL;
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if (fstat(fd, &st) < 0) {
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close(fd);
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return NULL;
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}
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str = malloc(128);
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if (!str) {
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close(fd);
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return NULL;
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}
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memset(str, 0, 128);
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map = mmap(0, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
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if (map == MAP_FAILED) {
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free(str);
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close(fd);
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return NULL;
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}
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off = strstr(map, oui);
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if (off) {
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off += 18;
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end = strpbrk(off, "\r\n");
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strncpy(str, off, end - off);
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} else {
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free(str);
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str = NULL;
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}
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munmap(map, st.st_size);
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close(fd);
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return str;
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}
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int oui2comp(const char *oui, char *comp, size_t size)
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{
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char *tmp;
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tmp = ouitocomp(oui);
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if (!tmp)
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return -1;
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snprintf(comp, size, "%s", tmp);
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free(tmp);
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return 0;
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}
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