Hi, I am writing a simple program in which a machine A broadcasts UDP messages on a subnet. Another machine B on the same subnet receives this message using "recvfrom". int recvfrom(int s, void *buf, size_t len, int flags, struct sockaddr *from, socklen_t *fromlen); The last 2 parameters of recvfrom give information about the sender of the message - machine A. The information is IP address, port number, and family (AF_INET etc.). If I compile the program using gcc option -O2, recvfrom works & receives the message correctly, but no information about the sender. If option -O2 is not used, this works fine. I need to get the sender's information and also use -O2 option for my program. Is there any other way to do this... or am I missing any code. Thanks for the help. -SP __________________________________ Do you Yahoo!? Friends. Fun. Try the all-new Yahoo! Messenger. http://messenger.yahoo.com/ - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
