mirror of https://github.com/ventoy/Ventoy.git
54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
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/******************************************************************************
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* biso_joliet.c
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*
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* Copyright (c) 2020, longpanda <admin@ventoy.net>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "biso.h"
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#include "biso_joliet.h"
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UCHAR BISO_JOLIET_GetLevel(IN CONST UCHAR *pucEscape)
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{
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UCHAR ucLevel = 0;
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/*
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* Standard Level Decimal Hex Bytes ASCII
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* UCS-2 Level 1 2/5, 2/15, 4/0 (25)(2F)(40) '%\@'
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* UCS-2 Level 2 2/5, 2/15, 4/3 (25)(2F)(43) '%\C'
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* UCS-2 Level 3 2/5, 2/15, 4/5 (25)(2F)(45) '%\E
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*/
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if ((NULL != pucEscape) && (0x25 == pucEscape[0]) && (0x2F == pucEscape[1]))
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{
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if (0x40 == pucEscape[2])
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{
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ucLevel = 1;
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}
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else if (0x43 == pucEscape[2])
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{
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ucLevel = 2;
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}
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else if (0x45 == pucEscape[2])
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{
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ucLevel = 3;
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}
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}
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return ucLevel;
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}
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