c - What is the Difference Between read() and recv() , and Between send() and write()?

Question

What is the difference between read() and recv(), and between send() and write() in socket programming in terms of performances, speed and other behaviors?

Answer 1

The difference is that recv()/send() work only on socket descriptors and let you specify certain options for the actual operation. Those functions are slightly more specialized (for instance, you can set a flag to ignore SIGPIPE, or to send out-of-band messages...).

Functions read()/write() are the universal file descriptor functions working on all descriptors.