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/*
* This file has been modified for the cdrkit suite.
*
* The behaviour and appearence of the program code below can differ to a major
* extent from the version distributed by the original author(s).
*
* For details, see Changelog file distributed with the cdrkit package. If you
* received this file from another source then ask the distributing person for
* a log of modifications.
*
*/
/* $Id: iso9660.c,v 1.1 2001/07/27 14:37:08 hpa Exp $ */
/* ----------------------------------------------------------------------- *
*
* Copyright 2001 H. Peter Anvin - All Rights Reserved
*
* 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, Inc., 675 Mass Ave, Cambridge MA 02139,
* USA; either version 2 of the License, or (at your option) any later
* version; incorporated herein by reference.
*
* ----------------------------------------------------------------------- */
#include "iso9660.h"
/* zisofs magic */
const unsigned char zisofs_magic[8] = {
0x37, 0xE4, 0x53, 0x96, 0xC9, 0xDB, 0xD6, 0x07
};
/* iso9660 integer formats */
void
set_721(void *pnt, unsigned int i)
{
unsigned char *p = (unsigned char *)pnt;
p[0] = i & 0xff;
p[1] = (i >> 8) & 0xff;
}
unsigned int
get_721(void *pnt)
{
unsigned char *p = (unsigned char *)pnt;
return ((unsigned int)p[0]) + ((unsigned int)p[1] << 8);
}
void
set_722(void *pnt, unsigned int i)
{
unsigned char *p = (unsigned char *)pnt;
p[0] = (i >> 8) & 0xff;
p[1] = i & 0xff;
}
unsigned int
get_722(void *pnt)
{
unsigned char *p = (unsigned char *)pnt;
return ((unsigned int)p[0] << 8) + ((unsigned int)p[1]);
}
void
set_723(void *pnt, unsigned int i)
{
unsigned char *p = (unsigned char *)pnt;
p[3] = p[0] = i & 0xff;
p[2] = p[1] = (i >> 8) & 0xff;
}
#define get_723(x) get_721(x)
void
set_731(void *pnt, unsigned int i)
{
unsigned char *p = (unsigned char *)pnt;
p[0] = i & 0xff;
p[1] = (i >> 8) & 0xff;
p[2] = (i >> 16) & 0xff;
p[3] = (i >> 24) & 0xff;
}
unsigned int
get_731(void *pnt)
{
unsigned char *p = (unsigned char *)pnt;
return ((unsigned int)p[0]) + ((unsigned int)p[1] << 8) +
((unsigned int)p[2] << 16) + ((unsigned int)p[3] << 24);
}
void
set_732(void *pnt, unsigned int i)
{
unsigned char *p = (unsigned char *)pnt;
p[3] = i & 0xff;
p[2] = (i >> 8) & 0xff;
p[1] = (i >> 16) & 0xff;
p[0] = (i >> 24) & 0xff;
}
unsigned int
get_732(void *pnt)
{
unsigned char *p = (unsigned char *)pnt;
return ((unsigned int)p[0] << 24) + ((unsigned int)p[1] << 16) +
((unsigned int)p[2] << 8) + ((unsigned int)p[3]);
}
void
set_733(void *pnt, unsigned int i)
{
unsigned char *p = (unsigned char *)pnt;
p[7] = p[0] = i & 0xff;
p[6] = p[1] = (i >> 8) & 0xff;
p[5] = p[2] = (i >> 16) & 0xff;
p[4] = p[3] = (i >> 24) & 0xff;
}
#define get_733(x) get_731(x)
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