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[FREELDR] PXE: support backward seeking
svn path=/trunk/; revision=66035
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@ -263,8 +263,13 @@ static ARC_STATUS PxeSeek(ULONG FileId, LARGE_INTEGER* Position, SEEKMODE SeekMo
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return EINVAL;
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return EINVAL;
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if (!_CachedFile && Position->LowPart < _FilePosition)
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if (!_CachedFile && Position->LowPart < _FilePosition)
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// We don't support backward seek without caching
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{
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return EINVAL;
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// Close and reopen the file to go to position 0
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if (PxeClose(FileId) != ESUCCESS)
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return EIO;
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if (PxeOpen(_OpenFileName, OpenReadOnly, &FileId) != ESUCCESS)
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return EIO;
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}
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RtlZeroMemory(&readData, sizeof(readData));
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RtlZeroMemory(&readData, sizeof(readData));
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readData.Buffer.segment = ((UINT32)_Packet & 0xf0000) / 16;
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readData.Buffer.segment = ((UINT32)_Packet & 0xf0000) / 16;
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