/**
* Decompresses one stream to another.
*
* @returns Exit code.
* @param phVfsSrc The input stream. Set to NIL if closed.
* @param pOpts The options.
* @param phVfsDst The output stream. Set to NIL if closed.
*/
static RTEXITCODE gzipDecompressFile(PRTVFSIOSTREAM phVfsSrc, PCRTGZIPCMDOPTS pOpts, PRTVFSIOSTREAM phVfsDst)
{
RTEXITCODE rcExit = gzipSetupDecompressor(phVfsSrc);
if (rcExit == RTEXITCODE_SUCCESS)
rcExit = gzipPushFlushAndClose(phVfsSrc, pOpts, phVfsDst);
return rcExit;
}
/**
* For testing the archive (todo).
*
* @returns Exit code.
* @param phVfsSrc The input stream. Set to NIL if closed.
* @param pOpts The options.
*/
static RTEXITCODE gzipTestFile(PRTVFSIOSTREAM phVfsSrc, PCRTGZIPCMDOPTS pOpts)
{
/*
* Read the whole stream.
*/
RTEXITCODE rcExit = gzipSetupDecompressor(phVfsSrc);
if (rcExit == RTEXITCODE_SUCCESS)
{
for (;;)
{
uint8_t abBuf[_64K];
size_t cbRead;
int rc = RTVfsIoStrmRead(*phVfsSrc, abBuf, sizeof(abBuf), true /*fBlocking*/, &cbRead);
if (RT_FAILURE(rc))
return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTVfsIoStrmRead failed: %Rrc", rc);
if (rc == VINF_EOF && cbRead == 0)
return RTEXITCODE_SUCCESS;
}
}
return rcExit;
}
