Question

In Linux, to create a socket we include the sys/socket.h header file and use the socket() function. The header file is located at /usr/include/sys/socket.h.

extern int socket (int __domain, int __type, int __protocol) __THROW;

Can anyone please tell the location where the socket() function is actually implemented.

Thanks.

Answer 1

Acutally,
int socket (int __domain, int __type, int __protocol) __THROW

implemented in glibc,

and the glibc calls the kernel function sys_socket implemented in kernel file net/socket.c.

asmlinkage long sys_socket(int family, int type, int protocol);