getsockname — get socket name
Contents
Bugs
Names bound to sockets in the UNIX domain are inaccessible; getsockname() returns a zero length name.
Debian June 4, 1993 GETSOCKNAME(2)
Description
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).
Errors
The call succeeds unless:
[EBADF] The argument s is not a valid descriptor.
[ECONNRESET] The connection has been reset by the peer.
[EINVAL] The value of the namelen argument is not valid.
[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.
History
The getsockname() system call appeared in 4.2BSD.
Library
Standard C Library (libc, -lc)
Name
getsockname — get socket name
Return Values
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.
See Also
bind(2), getpeername(2), socket(2)
Synopsis
#include<sys/types.h>#include<sys/socket.h>intgetsockname(ints, structsockaddr*restrictname, socklen_t*restrictnamelen);
