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https://issues.apache.org/jira/browse/THRIFT-3069?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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James E. King, III resolved THRIFT-3069.
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Resolution: Fixed
> C++ TServerSocket leaks socket on fcntl get or set flags error
> --------------------------------------------------------------
>
> Key: THRIFT-3069
> URL: https://issues.apache.org/jira/browse/THRIFT-3069
> Project: Thrift
> Issue Type: Bug
> Components: C++ - Library
> Affects Versions: 0.9.2
> Reporter: James E. King, III
> Assignee: James E. King, III
> Priority: Minor
> Fix For: 0.9.3
>
>
> Walking through the C++ TServerSocket code, there are opportunities for the
> newly accepted client socket to leak:
> {noformat} THRIFT_SOCKET clientSocket = ::accept(serverSocket_,
> (struct sockaddr *) &clientAddress,
> (socklen_t *) &size);
> if (clientSocket == -1) {
> int errno_copy = THRIFT_GET_SOCKET_ERROR;
> GlobalOutput.perror("TServerSocket::acceptImpl() ::accept() ",
> errno_copy);
> throw TTransportException(TTransportException::UNKNOWN, "accept()",
> errno_copy);
> }
> // Make sure client socket is blocking
> int flags = THRIFT_FCNTL(clientSocket, THRIFT_F_GETFL, 0);
> if (flags == -1) {
> int errno_copy = THRIFT_GET_SOCKET_ERROR;
> GlobalOutput.perror("TServerSocket::acceptImpl() THRIFT_FCNTL()
> THRIFT_F_GETFL ", errno_copy);
> throw TTransportException(TTransportException::UNKNOWN,
> "THRIFT_FCNTL(THRIFT_F_GETFL)", errno_copy);
> }
> if (-1 == THRIFT_FCNTL(clientSocket, THRIFT_F_SETFL, flags &
> ~THRIFT_O_NONBLOCK)) {
> int errno_copy = THRIFT_GET_SOCKET_ERROR;
> GlobalOutput.perror("TServerSocket::acceptImpl() THRIFT_FCNTL()
> THRIFT_F_SETFL ~THRIFT_O_NONBLOCK ", errno_copy);
> throw TTransportException(TTransportException::UNKNOWN,
> "THRIFT_FCNTL(THRIFT_F_SETFL)", errno_copy);
> }
> {noformat}
> Specifically in both of the latter error handling cases, {{clientSocket}} is
> not cleaned up. Given this is highly unlikely to occur, I set the priority
> of this issue to Minor.
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