Error String = End Of Socket Stream Data

very strange behaviorofLotus Protector forMail Security with latest firmware 2.8.1, some emails sent to specific domains were successfully delivered, but from some reason LPfMS was read socket c treating those emails as unsuccessfully delivered and were parked into resend queue. The sender

Socket Read C++

was receiving report for temporary delivery error and after few hoursa report that maximum number of delivery attempts has been c socket read vs recv reached, even though the email was successfully received by the email recipient ! Smtp serveron LPfMS is based on XMail smtp server. Following error was logged for those emails: "End of socket stream data c++ socket recv (2) No such file or directory - 417 Temporary delivery error" I have opened a case for this kind of behavior, and the support engineer has recommended to change the time out value for LPfMS to send the command and to wait for getting the response back from the foreign SMTP server. The default value is 30 seconds. After raising the time out value, this strange behavior

C Read Socket Until Newline

of LPfMS was gone. This parameter is smtp.send_dialog_timeoutms and can be set on Mail Security -> Policy -> Advanced Parameters. The parameter is accepting values in milliseconds. Posted by Vladimir Stepic at 5:06 PM Email ThisBlogThis!Share to TwitterShare to FacebookShare to Pinterest Labels: Lotus Protector for Mail Security No comments: Post a Comment Newer Post Older Post Home Subscribe to: Post Comments (Atom) Follow Me On Twitter Follow @vstepic Follow by Email Blog Archive ► 2016 (14) ► October (1) ► August (1) ► July (5) ► June (1) ► May (2) ► April (1) ► March (2) ► February (1) ► 2015 (21) ► December (2) ► October (2) ► September (1) ► July (1) ► May (1) ► April (2) ► March (3) ► February (6) ► January (3) ► 2014 (38) ► December (3) ► November (3) ► October (4) ► September (2) ► August (2) ► July (1) ► June (1) ► May (3) ► April (4) ► March (5) ► February (6) ► January (4) ▼ 2013 (44) ▼ December (2) Stuck in WinPE when converting P2V End of socket stream data on Lotus Protector for M... ► November (8) ► October (3) ► S

here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings read socket c example and policies of this site About Us Learn more about Stack Overflow c socket read timeout the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation

Socket Read Blocking

Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; http://vstepic.blogspot.com/2013/12/end-of-socket-stream-data-on-lotus.html it only takes a minute: Sign up What does 'end of stream' mean when working with sockets up vote 14 down vote favorite 8 When working with Sockets in Java, how can you tell whether the client has finished sending all (binary) data, before you could start processing them. Consider for example: istream = new BufferedInputStream (socket.getInputStream()); ostream = new http://stackoverflow.com/questions/649320/what-does-end-of-stream-mean-when-working-with-sockets BufferedOutputStream(socket.getOutputStream()); byte[] buffer = new byte[BUFFER_SIZE]; int count; while(istream.available() > 0 && (count = istream.read(buffer)) != -1) { // do something.. } // assuming all input has been read ostream.write(getResponse()); ostream.flush(); I've read similar posts on SO such as this, but couldn't find a conclusive answer. While my solution above works, my understanding is that you can never really tell if the client has finished sending all data. If for instance the client socket sends a few chunks of data and then blocks waiting for data from another data source before it could send more data, the code above may very well assume that the client has finished sending all data since istream.available() will return 0 for the current stream of bytes. java sockets network-programming share|improve this question edited Mar 17 '09 at 8:04 asked Mar 16 '09 at 5:04 Mystic 2,30531727 add a comment| 4 Answers 4 active oldest votes up vote 22 down vote Yes, you're right - using available() like this is unreliable. Personally I very rarely use available(). If you want to read unt

here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn http://stackoverflow.com/questions/666601/what-is-the-correct-way-of-reading-from-a-tcp-socket-in-c-c more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags http://stackoverflow.com/questions/19127398/socket-programming-read-is-reading-all-of-my-writes Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up What is the correct way of reading from a TCP socket in C/C++? up vote 10 down vote favorite 11 Here's my code: // Not all socket read headers are relevant to the code snippet. #include #include #include #include #include #include #include #include char *buffer; stringstream readStream; bool readData = true; while (readData) { cout << "Receiving chunk... "; // Read a bit at a time, eventually "end" string will be received. bzero(buffer, BUFFER_SIZE); int readResult = read(socketFileDescriptor, buffer, BUFFER_SIZE); if (readResult < 0) { THROW_VIMRID_EX("Could not read from socket."); } // Concatenate the received data to read socket c the existing data. readStream << buffer; // Continue reading while end is not found. readData = readStream.str().find("end;") == string::npos; cout << "Done (length: " << readStream.str().length() << ")" << endl; } It's a little bit of C and C++ as you can tell. The BUFFER_SIZE is 256 - should I just increase the size? If so, what to? Does it matter? I know that if "end" is not received for what ever reason, this will be an endless loop, which is bad - so if you could suggest a better way, please also do so. c++ c tcp share|improve this question edited Mar 22 '09 at 21:24 asked Mar 20 '09 at 15:21 nbolton 13.1k42132205 1 This is plain C++... –Benoît Mar 20 '09 at 16:12 8 Thank your for your contribution. Please note that my code implements the read() method, which can be found in the sys/socket.h library, which is "part of the GNU C Library" and not the C++ library. –nbolton Mar 22 '09 at 21:27 add a comment| 6 Answers 6 active oldest votes up vote 18 down vote accepted Without knowing your full application it is hard to say what the best way to approach the problem is, but a common technique is to use a header which starts with a fixed length field, which denotes the length of the re

here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Socket programming read() is reading all of my writes() up vote 1 down vote favorite 1 I have a client and a server. I have two read() in my client and two write() in my server code. The server sends data to the client on the first write(), the client reads and stores to a buffer but it doesn't stop reading, it keeps reading through the server's second write() because in my client i have it set up to read 255 in the stream(from my understanding). I put 255 because i don't know how long the data datasize for first write() is. How do i fix this? Client: n = read(sockfd,buffer,255); if (n < 0) error("ERROR reading from socket"); printf("%s\n",buffer); n = read(sockfd,buffer,255); if (n < 0) error("ERROR reading from socket"); printf("%s\n",buffer); Server: n = write(newsockfd,datasize,strlen(datasize)); if (n < 0) error("ERROR writing to socket"); n = write(newsockfd,data,255); if (n < 0) error("ERROR writing to socket"); c sockets share|improve this question asked Oct 1 '13 at 22:58 user2644819 46721124 Need to see more of the code. –Troy Oct 1 '13 at 23:00 add a comment| 4 Answers 4 active oldest votes up vote 5 down vote accepted What you are experiencing is how TCP works. If the server calls write() multiple times before the client calls read(), then read() can receive everything that was previously written, up to the maximum buffer size that you specify. TCP has no concept of message boundaries, like UDP does. There is nothing wrong with that. You just need to account for it, that's all. If you need to know where one message ends and the next begins, then you simply need to frame your messages. There are a couple of different ways you can do that. Send the data length before sending the actual data, so the client knows how much data to read, eg: Server: int datalen = ...; // # of bytes in data int tmp = htonl(datalen); n = write(newsockfd, (char*)&tmp, sizeof(tmp)); if (n < 0) error("ERROR writing to socket"); n = write(newsockfd, data, datalen); if (n < 0) error("ERROR writing to socket")