/*
* Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
*
* 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 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 Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
* You can also choose to distribute this program under the terms of
* the Unmodified Binary Distribution Licence (as given in the file
* COPYING.UBDL), provided that you have satisfied its requirements.
*/
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <stdint.h>
#include <stdio.h>
#include <errno.h>
#include <byteswap.h>
#include <ipxe/base16.h>
#include <ipxe/uuid.h>
/** @file
*
* Universally unique IDs
*
*/
/**
* Convert UUID to printable string
*
* @v uuid UUID
* @ret string UUID in canonical form
*/
const char * uuid_ntoa ( const union uuid *uuid ) {
static char buf[37]; /* "00000000-0000-0000-0000-000000000000" */
sprintf ( buf, "%08x-%04x-%04x-%04x-%02x%02x%02x%02x%02x%02x",
be32_to_cpu ( uuid->canonical.a ),
be16_to_cpu ( uuid->canonical.b ),
be16_to_cpu ( uuid->canonical.c ),
be16_to_cpu ( uuid->canonical.d ),
uuid->canonical.e[0], uuid->canonical.e[1],
uuid->canonical.e[2], uuid->canonical.e[3],
uuid->canonical.e[4], uuid->canonical.e[5] );
return buf;
}
/**
* Parse UUID
*
* @v string UUID string
* @v uuid UUID to fill in
* @ret rc Return status code
*/
int uuid_aton ( const char *string, union uuid *uuid ) {
int len;
int rc;
/* Decode as hex string with optional '-' separator */
len = hex_decode ( ( '-' | HEX_DECODE_OPTIONAL ), string, uuid->raw,
sizeof ( *uuid ) );
if ( len < 0 ) {
rc = len;
return rc;
}
/* Check length */
if ( len != sizeof ( *uuid ) )
return -EINVAL;
return 0;
}
