Socket: read error bad address

UDP socket: read error bad address
When writing to the UDP server, this error occurs when the socket is called for reading. You can see the corresponding error code efault through errno. h:

Bad address (posix.1:

It happen if the memory address of some argument passed to sendto (or more generally to any system call) is invalid. think of it as a sort of SIGSEGV in kernel land regarding your syscall. for instance, if you pass a null or invalid buffer pointer (for reading, writing, sending, recieving ...). It indicates that invalid parameters such as null pointer are input when calling some functions on the socket.

Socket: read error bad address