getsockname -- get socket name
Standard C Library (libc, -lc)
#include <sys/types.h>
#include <sys/socket.h>
int
getsockname(int s, struct sockaddr *name, socklen_t *namelen);
The getsockname() system call returns the current name for the specified
socket. The namelen argument should be initialized to indicate the
amount of space pointed to by name. On return it contains the actual
size of the name returned (in bytes).
The getsockname() function returns the value 0 if successful; otherwise
the value -1 is returned and the global variable errno is set to indicate
the error.
The call succeeds unless:
[EBADF] The argument s is not a valid descriptor.
[ECONNRESET] The connection has been reset by the peer.
[ENOTSOCK] The argument s is a file, not a socket.
[ENOBUFS] Insufficient resources were available in the system to
perform the operation.
[EFAULT] The name argument points to memory not in a valid part
of the process address space.
bind(2), getpeername(2), socket(2)
Names bound to sockets in the UNIX domain are inaccessible; getsockname()
returns a zero length name.
The getsockname() system call appeared in 4.2BSD.
FreeBSD 5.2.1 June 4, 1993 FreeBSD 5.2.1 [ Back ] |