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Avoid potential endianness conflicts in XMB files

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This was SVN commit r812.
This commit is contained in:
Ykkrosh 2004-07-23 19:03:40 +00:00
parent 65c3f6b7e0
commit 046aee9750
1 changed files with 10 additions and 4 deletions
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14
source/ps/Xeromyces.cpp
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@ -1,4 +1,4 @@
// $Id: Xeromyces.cpp,v 1.8 2004/07/15 19:08:28 philip Exp $
// $Id: Xeromyces.cpp,v 1.9 2004/07/23 19:03:40 philip Exp $
#include "precompiled.h"
@ -195,10 +195,16 @@ void CXeromyces::Load(const char* filename)
}
// Start the checksum with a particular seed value, so the XMBs will
// be recreated whenever the version/etc string has been changed, so
// the string can be changed whenever the file format's changed.
// be recreated whenever the file format has changed.
unsigned long SeedChecksum = crc32(0L, Z_NULL, 0);
// Depend on the version of the file format
const char* ChecksumID = "version C";
unsigned long XMLChecksum = source.CRC32( crc32( crc32(0L, Z_NULL, 0), (Bytef*)ChecksumID, (int)strlen(ChecksumID) ) );
SeedChecksum = crc32(SeedChecksum, (Bytef*)ChecksumID, (int)strlen(ChecksumID));
// Also depend on the machine's endianness
u32 EndiannessIndicator = 0x12345678;
SeedChecksum = crc32(SeedChecksum, (Bytef*)&EndiannessIndicator, 4);
// And finally depend on the actual contents of the XML file
unsigned long XMLChecksum = source.CRC32(SeedChecksum);
// Check whether the XMB file needs to be regenerated: