Recvfrom Error 10040
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies wsaemsgsize of this site About Us Learn more about Stack Overflow the company Business winsock 10040 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 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up How to easily solve the 10040 message too long error on Wsock2 up vote 2 down vote favorite I'm sending from a .Net application 1404 float values which make up for 5616 bytes through an udp socket. I get no exceptions off this operation. However, the program receiving those data, is a C++ application, and when receiving such amount of data I get a 10040 message too long error. Apparently 1480bytes is the longest size possible for messages in Wsock2. What would be the easiest, cleanest way to fix this? Thanks! EDIT: Posting some code: This is my socket J_Receive class: #include "J_Receive.h" #include
a Question Ask for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Ask a Question Ask for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Expand Search Submit Close Search Login Join Today Products BackProducts Gigs Live Courses Vendor Services Groups Careers Store Headlines Website Testing Experts Exchange > Questions > Winsock error: WSAEMSGSIZE (10040): ->buffer used to receive a datagram into was smaller than the datagram itself. Want to Advertise Here? Solved http://stackoverflow.com/questions/9378146/how-to-easily-solve-the-10040-message-too-long-error-on-wsock2 Winsock error: WSAEMSGSIZE (10040): ->buffer used to receive a datagram into was smaller than the datagram itself. Posted on 2003-05-03 Programming Languages-Other Programming 1 Verified Solution 3 Comments 5,186 Views Last Modified: 2013-11-13 Background Info: I am trying to write a program on Windows(WinSock) that creates 2 SOCK_DGRAMs that are binded to the same machine(My PC: 127.0.0.1). These two sockets https://www.experts-exchange.com/questions/20604733/Winsock-error-WSAEMSGSIZE-10040-buffer-used-to-receive-a-datagram-into-was-smaller-than-the-datagram-itself.html need to work as follows: 1) listeningSocket(non-blocking mode) 2) sendingSocket(blocking mode/dont care) I am trying to send a file thru the "sendingSocket" and recieve the same file thru the "listeningSocket". My file is 14990 bytes in size. I read the file into an array sendBuffer[14990] I have a corresponding recvBuffer[14990] I determined the max buffer size of my system(8192 bytes) by doing a getsockopt(). Then i divide the total file size into chunks of 8192 bytes and send each chunk thru the "sendingSocket" (In this case i get 2 chunks: 1 whole chunk of 8192 bytes + 1 partial chunk of 6798 bytes).........this works fine!! Similarly i receive these chunks from the listeningSocket. I receive the first whole chunk of 8192 bytes sucessfully..no problems!. But when I try to receive the partial chunk of 6798 bytes...i get the following error WSAEMSGSIZE (10040): Message too long -> A message sent on a datagram socket was larger than the internal message buffer or some other network limit, or the buffer used to receive a datagram into was smaller than the datagram i
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