In which header file is the declaration of the sockaddr_in structure?

The sockaddr_in structure in C and C++ is used to represent information of an Internet address (IP address and port number). Its declaration can be found in the header file related to network programming, which also includes other structures and function declarations related to network programming.

To use the sockaddr_in structure in the code, the following header file needs to be included:

#include <netinet/in.h>

In C++, the same header file can be used to access the sockaddr_in structure.

#include <netinet/in.h>

Before using the sockaddr_in structure, make sure to include other necessary system header files such as . The specific dependencies required may vary depending on your operating system and compilation environment.