static RTEXITCODE gzipDecompress(RTVFSIOSTREAM hVfsIn, RTVFSIOSTREAM hVfsOut)
{
RTEXITCODE rcExit;
RTVFSIOSTREAM hVfsGunzip;
int rc = RTZipGzipDecompressIoStream(hVfsIn, 0 /*fFlags*/, &hVfsGunzip);
if (RT_SUCCESS(rc))
{
rcExit = gzipPush(hVfsGunzip, hVfsOut);
RTVfsIoStrmRelease(hVfsGunzip);
}
else
rcExit = RTMsgErrorExit(RTEXITCODE_FAILURE, "RTZipGzipDecompressIoStream failed: %Rrc", rc);
return rcExit;
}
/**
* Pushes the bytes from the input to the output stream, flushes the output
* stream and closes both of them.
*
* On failure, we will delete the output file, if it's a file. The input file
* may be deleted, if we're not told to keep it (--keep, --to-stdout).
*
* @returns RTEXITCODE_SUCCESS or RTEXITCODE_FAILURE.
* @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 gzipPushFlushAndClose(PRTVFSIOSTREAM phVfsSrc, PCRTGZIPCMDOPTS pOpts, PRTVFSIOSTREAM phVfsDst)
{
/*
* Push bytes, flush and close the streams.
*/
RTEXITCODE rcExit = gzipPush(*phVfsSrc, *phVfsDst);
RTVfsIoStrmRelease(*phVfsSrc);
*phVfsSrc = NIL_RTVFSIOSTREAM;
int rc = RTVfsIoStrmFlush(*phVfsDst);
if (RT_FAILURE(rc) && rc != VERR_INVALID_PARAMETER)
rcExit = RTMsgErrorExit(RTEXITCODE_FAILURE, "Failed to flush the output file: %Rrc", rc);
RTVfsIoStrmRelease(*phVfsDst);
*phVfsDst = NIL_RTVFSIOSTREAM;
/*
* Do the cleaning up, if needed. Remove the input file, if that's the
* desire of the user, or remove the output file on failure.
*/
if (!pOpts->fStdOut)
{
if (rcExit == RTEXITCODE_SUCCESS)
{
if (!pOpts->fKeep)
{
rc = RTFileDelete(pOpts->pszInput);
if (RT_FAILURE(rc))
rcExit = RTMsgErrorExit(RTEXITCODE_FAILURE, "Failed to delete '%s': %Rrc", pOpts->pszInput, rc);
}
}
else
{
rc = RTFileDelete(pOpts->szOutput);
if (RT_FAILURE(rc))
RTMsgError("Failed to delete '%s': %Rrc", pOpts->szOutput, rc);
}
}
return rcExit;
}
