1189251Ssam/* 2189251Ssam * Universally Unique IDentifier (UUID) 3189251Ssam * Copyright (c) 2008, Jouni Malinen <j@w1.fi> 4189251Ssam * 5189251Ssam * This program is free software; you can redistribute it and/or modify 6189251Ssam * it under the terms of the GNU General Public License version 2 as 7189251Ssam * published by the Free Software Foundation. 8189251Ssam * 9189251Ssam * Alternatively, this software may be distributed under the terms of BSD 10189251Ssam * license. 11189251Ssam * 12189251Ssam * See README and COPYING for more details. 13189251Ssam */ 14189251Ssam 15189251Ssam#include "includes.h" 16189251Ssam 17189251Ssam#include "common.h" 18189251Ssam#include "uuid.h" 19189251Ssam 20189251Ssamint uuid_str2bin(const char *str, u8 *bin) 21189251Ssam{ 22189251Ssam const char *pos; 23189251Ssam u8 *opos; 24189251Ssam 25189251Ssam pos = str; 26189251Ssam opos = bin; 27189251Ssam 28189251Ssam if (hexstr2bin(pos, opos, 4)) 29189251Ssam return -1; 30189251Ssam pos += 8; 31189251Ssam opos += 4; 32189251Ssam 33189251Ssam if (*pos++ != '-' || hexstr2bin(pos, opos, 2)) 34189251Ssam return -1; 35189251Ssam pos += 4; 36189251Ssam opos += 2; 37189251Ssam 38189251Ssam if (*pos++ != '-' || hexstr2bin(pos, opos, 2)) 39189251Ssam return -1; 40189251Ssam pos += 4; 41189251Ssam opos += 2; 42189251Ssam 43189251Ssam if (*pos++ != '-' || hexstr2bin(pos, opos, 2)) 44189251Ssam return -1; 45189251Ssam pos += 4; 46189251Ssam opos += 2; 47189251Ssam 48189251Ssam if (*pos++ != '-' || hexstr2bin(pos, opos, 6)) 49189251Ssam return -1; 50189251Ssam 51189251Ssam return 0; 52189251Ssam} 53189251Ssam 54189251Ssam 55189251Ssamint uuid_bin2str(const u8 *bin, char *str, size_t max_len) 56189251Ssam{ 57189251Ssam int len; 58189251Ssam len = os_snprintf(str, max_len, "%02x%02x%02x%02x-%02x%02x-%02x%02x-" 59189251Ssam "%02x%02x-%02x%02x%02x%02x%02x%02x", 60189251Ssam bin[0], bin[1], bin[2], bin[3], 61189251Ssam bin[4], bin[5], bin[6], bin[7], 62189251Ssam bin[8], bin[9], bin[10], bin[11], 63189251Ssam bin[12], bin[13], bin[14], bin[15]); 64189251Ssam if (len < 0 || (size_t) len >= max_len) 65189251Ssam return -1; 66189251Ssam return 0; 67189251Ssam} 68189251Ssam 69189251Ssam 70189251Ssamint is_nil_uuid(const u8 *uuid) 71189251Ssam{ 72189251Ssam int i; 73189251Ssam for (i = 0; i < UUID_LEN; i++) 74189251Ssam if (uuid[i]) 75189251Ssam return 0; 76189251Ssam return 1; 77189251Ssam} 78