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Fix zlib inout variables to not crash things

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Branan Purvine-Riley
2011-10-29 18:46:29 -07:00
parent 7dd9b30452
commit e8b6c424d7
1 changed files with 6 additions and 6 deletions
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12
Sources/Plasma/PubUtilLib/plCompression/plZlibCompress.cpp
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@ -46,20 +46,20 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
hsBool plZlibCompress::Uncompress(UInt8* bufOut, UInt32* bufLenOut, const UInt8* bufIn, UInt32 bufLenIn) hsBool plZlibCompress::Uncompress(UInt8* bufOut, UInt32* bufLenOut, const UInt8* bufIn, UInt32 bufLenIn)
{ {
unsigned long buflen_out; unsigned long buflen_out = *bufLenOut;
bool result = (uncompress(bufOut, &buflen_out, bufIn, bufLenIn) == Z_OK); bool result = (uncompress(bufOut, &buflen_out, bufIn, bufLenIn) == Z_OK);
*bufLenOut = buflen_out; *bufLenOut = buflen_out;
return result; return result;
} }
hsBool plZlibCompress::Compress(UInt8* bufOut, UInt32* bufLenOut, const UInt8* bufIn, UInt32 bufLenIn) hsBool plZlibCompress::Compress(UInt8* bufOut, UInt32* bufLenOut, const UInt8* bufIn, UInt32 bufLenIn)
{ {
// according to compress doc, the bufOut buffer should be at least .1% larger than source buffer, plus 12 bytes. // according to compress doc, the bufOut buffer should be at least .1% larger than source buffer, plus 12 bytes.
hsAssert(*bufLenOut>=(int)(bufLenIn*1.1+12), "bufOut compress buffer is not large enough"); hsAssert(*bufLenOut>=(int)(bufLenIn*1.1+12), "bufOut compress buffer is not large enough");
unsigned long buflen_out; unsigned long buflen_out = *bufLenOut;
bool result = (compress(bufOut, &buflen_out, bufIn, bufLenIn) == Z_OK); bool result = (compress(bufOut, &buflen_out, bufIn, bufLenIn) == Z_OK);
*bufLenOut = buflen_out; *bufLenOut = buflen_out;
return result; return result;
} }
// //