229 lines
4.2 KiB
C
229 lines
4.2 KiB
C
/* @(#)isonum.c 1.9 10/12/19 Copyright 2006-2010 J. Schilling */
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#include <schily/mconfig.h>
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#ifndef lint
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static UConst char sccsid[] =
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"@(#)isonum.c 1.9 10/12/19 Copyright 2006-2010 J. Schilling";
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#endif
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/*
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* Copyright (c) 2006-2010 J. Schilling
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*/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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 along with
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* this program; see the file COPYING. If not, write to the Free Software
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* Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "mkisofs.h"
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EXPORT void set_721 __PR((void *vp, UInt32_t i));
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EXPORT void set_722 __PR((void *vp, UInt32_t i));
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EXPORT void set_723 __PR((void *vp, UInt32_t i));
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EXPORT void set_731 __PR((void *vp, UInt32_t i));
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EXPORT void set_732 __PR((void *vp, UInt32_t i));
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EXPORT void set_733 __PR((void *vp, UInt32_t i));
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EXPORT UInt32_t get_711 __PR((void *vp));
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EXPORT UInt32_t get_721 __PR((void *vp));
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EXPORT UInt32_t get_723 __PR((void *vp));
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EXPORT UInt32_t get_731 __PR((void *vp));
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EXPORT UInt32_t get_732 __PR((void *vp));
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EXPORT UInt32_t get_733 __PR((void *vp));
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/*
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* ISO-9660 7.2.1
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* Set 16 bit unsigned int, store Least significant byte first
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*/
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EXPORT void
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set_721(vp, i)
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void *vp;
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UInt32_t i;
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{
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Uchar *p = vp;
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p[0] = i & 0xff;
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p[1] = (i >> 8) & 0xff;
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}
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/*
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* ISO-9660 7.2.2
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* Set 16 bit unsigned int, store Most significant byte first
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*/
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EXPORT void
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set_722(vp, i)
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void *vp;
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UInt32_t i;
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{
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Uchar *p = vp;
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p[0] = (i >> 8) & 0xff;
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p[1] = i & 0xff;
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}
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/*
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* ISO-9660 7.2.3
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* Set 16 bit unsigned int, store Both Byte orders
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*/
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EXPORT void
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set_723(vp, i)
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void *vp;
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UInt32_t i;
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{
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Uchar *p = vp;
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p[3] = p[0] = i & 0xff;
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p[2] = p[1] = (i >> 8) & 0xff;
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}
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/*
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* ISO-9660 7.3.1
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* Set 32 bit unsigned int, store Least significant byte first
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*/
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EXPORT void
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set_731(vp, i)
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void *vp;
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UInt32_t i;
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{
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Uchar *p = vp;
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p[0] = i & 0xff;
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p[1] = (i >> 8) & 0xff;
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p[2] = (i >> 16) & 0xff;
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p[3] = (i >> 24) & 0xff;
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}
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/*
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* ISO-9660 7.3.2
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* Set 32 bit unsigned int, store Most significant byte first
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*/
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EXPORT void
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set_732(vp, i)
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void *vp;
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UInt32_t i;
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{
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Uchar *p = vp;
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p[3] = i & 0xff;
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p[2] = (i >> 8) & 0xff;
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p[1] = (i >> 16) & 0xff;
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p[0] = (i >> 24) & 0xff;
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}
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/*
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* ISO-9660 7.3.3
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* Set 32 bit unsigned int, store Both Byte orders
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*/
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EXPORT void
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set_733(vp, i)
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void *vp;
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UInt32_t i;
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{
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Uchar *p = vp;
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p[7] = p[0] = i & 0xff;
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p[6] = p[1] = (i >> 8) & 0xff;
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p[5] = p[2] = (i >> 16) & 0xff;
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p[4] = p[3] = (i >> 24) & 0xff;
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}
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/*
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* ISO-9660 7.1.1
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* Get 8 bit unsigned int
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*/
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EXPORT UInt32_t
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get_711(vp)
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void *vp;
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{
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Uchar *p = vp;
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return (*p & 0xff);
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}
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/*
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* ISO-9660 7.2.1
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* Get 16 bit unsigned int, stored with Least significant byte first
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*/
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EXPORT UInt32_t
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get_721(vp)
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void *vp;
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{
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Uchar *p = vp;
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return ((p[0] & 0xff) | ((p[1] & 0xff) << 8));
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}
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/*
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* ISO-9660 7.2.3
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* Get 16 bit unsigned int, stored with Both Byte orders
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*/
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EXPORT UInt32_t
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get_723(vp)
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void *vp;
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{
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Uchar *p = vp;
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#if 0
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if (p[0] != p[3] || p[1] != p[2]) {
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comerrno(EX_BAD, _("Invalid format 7.2.3 number\n"));
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}
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#endif
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return (get_721(p));
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}
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/*
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* ISO-9660 7.3.1
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* Get 32 bit unsigned int, stored with Least significant byte first
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*/
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EXPORT UInt32_t
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get_731(vp)
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void *vp;
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{
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Uchar *p = vp;
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return ((p[0] & 0xff)
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| ((p[1] & 0xff) << 8)
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| ((p[2] & 0xff) << 16)
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| ((p[3] & 0xff) << 24));
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}
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/*
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* ISO-9660 7.3.2
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* Get 32 bit unsigned int, stored with Most significant byte first
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*/
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EXPORT UInt32_t
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get_732(vp)
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void *vp;
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{
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Uchar *p = vp;
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return ((p[3] & 0xff)
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| ((p[2] & 0xff) << 8)
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| ((p[1] & 0xff) << 16)
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| ((p[0] & 0xff) << 24));
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}
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/*
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* ISO-9660 7.3.3
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* Get 32 bit unsigned int, stored with Both Byte orders
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*/
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EXPORT UInt32_t
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get_733(vp)
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void *vp;
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{
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Uchar *p = vp;
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return ((p[0] & 0xff)
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| ((p[1] & 0xff) << 8)
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| ((p[2] & 0xff) << 16)
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| ((p[3] & 0xff) << 24));
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}
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