differ between linux and solaris in socket programming
 

I have written a echo server and client on linux, and they run well.
But when I copy these files on solaris , and compiled them,
there come some errors. It said that " socket, accept , bind ,listen not defined" .
I have used "#include <sys/socket.h>" to import these functions.
Does these functions not be defined in sys/socket.h ?
Thanks

You need to link with the network libraries, add these options to your command:

Thank you jlliagre .