getsockname

GETSOCKNAME(2)             Linux Programmer's Manual            GETSOCKNAME(2)



NAME
       getsockname - get socket name

SYNOPSIS
       #include <sys/socket.h>

       int getsockname(int s, struct sockaddr *name, socklen_t *namelen);

DESCRIPTION
       Getsockname  returns  the  current  name for the specified socket.  The
       namelen parameter 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).

RETURN VALUE
       On success, zero is returned.  On error, -1 is returned, and  errno  is
       set appropriately.

ERRORS
       EBADF  The argument s is not a valid descriptor.

       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 parameter points to memory not in a valid part  of  the
              process address space.

CONFORMING TO
       SVr4,  4.4BSD (the getsockname function call appeared in 4.2BSD).  SVr4
       documents additional ENOMEM and ENOSR error codes.

NOTE
       The third argument of getsockname is in reality an `int *' (and this is
       what  BSD 4.* and libc4 and libc5 have).  Some POSIX confusion resulted
       in the present socklen_t.  The draft standard has not been adopted yet,
       but  glibc2  already  follows  it  and  also  has  socklen_t.  See also
       accept(2).

SEE ALSO
       bind(2), socket(2)



BSD Man Page                      1993-07-24                    GETSOCKNAME(2)