1 /* 2 * Copyright (C) 2007 Michael Brown <mbrown (at) fensystems.co.uk>. 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License as 6 * published by the Free Software Foundation; either version 2 of the 7 * License, or any later version. 8 * 9 * This program is distributed in the hope that it will be useful, but 10 * WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write to the Free Software 16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 17 */ 18 19 FILE_LICENCE ( GPL2_OR_LATER ); 20 21 #include <stdint.h> 22 #include <stdio.h> 23 #include <byteswap.h> 24 #include <gpxe/uuid.h> 25 26 /** @file 27 * 28 * Universally unique IDs 29 * 30 */ 31 32 /** 33 * Convert UUID to printable string 34 * 35 * @v uuid UUID 36 * @ret string UUID in canonical form 37 */ 38 char * uuid_ntoa ( union uuid *uuid ) { 39 static char buf[37]; /* "00000000-0000-0000-0000-000000000000" */ 40 41 sprintf ( buf, "%08x-%04x-%04x-%04x-%02x%02x%02x%02x%02x%02x", 42 be32_to_cpu ( uuid->canonical.a ), 43 be16_to_cpu ( uuid->canonical.b ), 44 be16_to_cpu ( uuid->canonical.c ), 45 be16_to_cpu ( uuid->canonical.d ), 46 uuid->canonical.e[0], uuid->canonical.e[1], 47 uuid->canonical.e[2], uuid->canonical.e[3], 48 uuid->canonical.e[4], uuid->canonical.e[5] ); 49 return buf; 50 } 51
