1189251Ssam/* 2189251Ssam * Universally Unique IDentifier (UUID) 3189251Ssam * Copyright (c) 2008, Jouni Malinen <j@w1.fi> 4189251Ssam * 5252726Srpaulo * This software may be distributed under the terms of the BSD license. 6252726Srpaulo * See README for more details. 7189251Ssam */ 8189251Ssam 9189251Ssam#include "includes.h" 10189251Ssam 11189251Ssam#include "common.h" 12189251Ssam#include "uuid.h" 13189251Ssam 14189251Ssamint uuid_str2bin(const char *str, u8 *bin) 15189251Ssam{ 16189251Ssam const char *pos; 17189251Ssam u8 *opos; 18189251Ssam 19189251Ssam pos = str; 20189251Ssam opos = bin; 21189251Ssam 22189251Ssam if (hexstr2bin(pos, opos, 4)) 23189251Ssam return -1; 24189251Ssam pos += 8; 25189251Ssam opos += 4; 26189251Ssam 27189251Ssam if (*pos++ != '-' || hexstr2bin(pos, opos, 2)) 28189251Ssam return -1; 29189251Ssam pos += 4; 30189251Ssam opos += 2; 31189251Ssam 32189251Ssam if (*pos++ != '-' || hexstr2bin(pos, opos, 2)) 33189251Ssam return -1; 34189251Ssam pos += 4; 35189251Ssam opos += 2; 36189251Ssam 37189251Ssam if (*pos++ != '-' || hexstr2bin(pos, opos, 2)) 38189251Ssam return -1; 39189251Ssam pos += 4; 40189251Ssam opos += 2; 41189251Ssam 42189251Ssam if (*pos++ != '-' || hexstr2bin(pos, opos, 6)) 43189251Ssam return -1; 44189251Ssam 45189251Ssam return 0; 46189251Ssam} 47189251Ssam 48189251Ssam 49189251Ssamint uuid_bin2str(const u8 *bin, char *str, size_t max_len) 50189251Ssam{ 51189251Ssam int len; 52189251Ssam len = os_snprintf(str, max_len, "%02x%02x%02x%02x-%02x%02x-%02x%02x-" 53189251Ssam "%02x%02x-%02x%02x%02x%02x%02x%02x", 54189251Ssam bin[0], bin[1], bin[2], bin[3], 55189251Ssam bin[4], bin[5], bin[6], bin[7], 56189251Ssam bin[8], bin[9], bin[10], bin[11], 57189251Ssam bin[12], bin[13], bin[14], bin[15]); 58189251Ssam if (len < 0 || (size_t) len >= max_len) 59189251Ssam return -1; 60189251Ssam return 0; 61189251Ssam} 62189251Ssam 63189251Ssam 64189251Ssamint is_nil_uuid(const u8 *uuid) 65189251Ssam{ 66189251Ssam int i; 67189251Ssam for (i = 0; i < UUID_LEN; i++) 68189251Ssam if (uuid[i]) 69189251Ssam return 0; 70189251Ssam return 1; 71189251Ssam} 72