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I have a Java programm on linux which use sockets, which receive and send packets. I writed LD_PRELOAD module which intercepts sockets functions with this java programm. I successfully use bind, connect, socket, accept functions, but i cant detect function which this java programm uses for send and receive packets, i tried functions recv, send, sendmsg, receivemsg, sendto, recvfrom, but java programm dont use them. What functions java programms use to send and receive packets?
Thanks!
Did you try read() or write()? Running your software under strace is an easy way to verify what syscalls it is making.