mirror of https://github.com/ventoy/Ventoy.git
54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
/******************************************************************************
|
|
* biso_joliet.c
|
|
*
|
|
* Copyright (c) 2020, longpanda <admin@ventoy.net>
|
|
*
|
|
* 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 3 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, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
#include "biso.h"
|
|
#include "biso_joliet.h"
|
|
|
|
UCHAR BISO_JOLIET_GetLevel(IN CONST UCHAR *pucEscape)
|
|
{
|
|
UCHAR ucLevel = 0;
|
|
|
|
/*
|
|
* Standard Level Decimal Hex Bytes ASCII
|
|
* UCS-2 Level 1 2/5, 2/15, 4/0 (25)(2F)(40) '%\@'
|
|
* UCS-2 Level 2 2/5, 2/15, 4/3 (25)(2F)(43) '%\C'
|
|
* UCS-2 Level 3 2/5, 2/15, 4/5 (25)(2F)(45) '%\E
|
|
*/
|
|
|
|
if ((NULL != pucEscape) && (0x25 == pucEscape[0]) && (0x2F == pucEscape[1]))
|
|
{
|
|
if (0x40 == pucEscape[2])
|
|
{
|
|
ucLevel = 1;
|
|
}
|
|
else if (0x43 == pucEscape[2])
|
|
{
|
|
ucLevel = 2;
|
|
}
|
|
else if (0x45 == pucEscape[2])
|
|
{
|
|
ucLevel = 3;
|
|
}
|
|
}
|
|
|
|
return ucLevel;
|
|
}
|
|
|