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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 reopened THRIFT-3069:
----------------------------------------
      Assignee: James E. King, III

> 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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