45       LOG(ERROR) << " ERROR closing socket (errno = " << errno << ")";  in Close()
62     LOG(ERROR) << "Failed to run command: " << command;  in ExecShellCommandPopen()
75       LOG(ERROR) << "ERROR reading shell output";  in ExecShellCommandPopen()
159       LOG(ERROR) << "Receiving message failure.";  in HandleShellCommandConnection()
164       LOG(ERROR) << "Received exit command.";  in HandleShellCommandConnection()
167       LOG(ERROR) << "Unknown command type " << cmd_msg.command_type();  in HandleShellCommandConnection()
178         LOG(ERROR) << "Error during executing command [" << command << "]";  in HandleShellCommandConnection()
186       LOG(ERROR) << "Write output to socket error.";  in HandleShellCommandConnection()
193     LOG(ERROR) << "Failed to close connection. errno: " << errno;  in HandleShellCommandConnection()
202     LOG(ERROR) << "NULL socket address.";  in StartListen()
215     PLOG(ERROR) << "socket() failed";  in StartListen()
227     PLOG(ERROR) << "bind() failed";  in StartListen()
232     PLOG(ERROR) << "listen() failed";  in StartListen()
243       PLOG(ERROR) << "accept failed";  in StartListen()
252         LOG(ERROR) << "Failed to handle connection.";  in StartListen()
261       LOG(ERROR) << "Create child process failed. Exiting...";  in StartListen()