getsockname - get socket name
#include <sys/socket.h> int getsockname(int sockfd, struct sockaddr *addr, socklen_t *addrlen);
getsockname() returns the current address to which
sockfd is bound, in the buffer pointed to by
addrlen argument should be initialized to
indicate the amount of space (in bytes) pointed to by
return it contains the actual size of the socket address.
The returned address is truncated if the buffer provided is too
small; in this case,
addrlen will return a value greater than
was supplied to the call.
On success, zero is returned. On error, -1 is returned, and
errno is set appropriately.
sockfd is not a valid file descriptor.
addr argument points to memory not in a valid part of
the process address space.
addrlen is invalid (e.g., is negative).
Insufficient resources were available in the system to perform the operation.
The file descriptor
sockfd does not refer to a socket.
This page is part of release 5.10 of the Linux
project. A description of the project, information about reporting bugs,
and the latest version of this page, can be found at