| /* |
| * |
| * BlueZ - Bluetooth protocol stack for Linux |
| * |
| * Copyright (C) 2004-2010 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 <stdlib.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; |
| } |