получить имя сокета (get socket name)
Имя (Name)
getsockname - get socket name
Синопсис (Synopsis)
#include <sys/socket.h>
int getsockname(int sockfd, struct sockaddr *restrict addr,
socklen_t *restrict addrlen);
Описание (Description)
getsockname() returns the current address to which the socket
sockfd is bound, in the buffer pointed to by addr. The addrlen
argument should be initialized to indicate the amount of space
(in bytes) pointed to by addr. On 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.
Возвращаемое значение (Return value)
On success, zero is returned. On error, -1 is returned, and
errno is set to indicate the error.
Ошибки (Error)
EBADF The argument sockfd is not a valid file descriptor.
EFAULT The addr argument points to memory not in a valid part of
the process address space.
EINVAL addrlen is invalid (e.g., is negative).
ENOBUFS
Insufficient resources were available in the system to
perform the operation.
ENOTSOCK
The file descriptor sockfd does not refer to a socket.
Стандарты (Conforming to)
POSIX.1-2001, POSIX.1-2008, SVr4, 4.4BSD (getsockname() first
appeared in 4.2BSD).
Примечание (Note)
For background on the socklen_t type, see accept(2).
Смотри также (See also)
bind(2), socket(2), getifaddrs(3), ip(7), socket(7), unix(7)
