Using list for sockets

Question

Hello i was programing with linux and i had a problem
Which is segment dumped
!!
I looked at my code , and i couldn’t understand why
What is this error

Answer 1

Use rubber duck debuging!

Answer 2

i fix it , it was a problem of segmuntion in which is using a fix memory that is already been used , so ihad to play with the argument of my code