getsockname(2) - NetBSD Manual Pages

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


NAME

     getsockname - get socket name


LIBRARY

     Standard C Library (libc, -lc)


SYNOPSIS

     #include <sys/socket.h>

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


DESCRIPTION

     The getsockname() system call 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 VALUES

     A 0 is returned if the call succeeds, -1 if it fails.


ERRORS

     The call succeeds unless:

     [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 per-
                   form the operation.

     [EFAULT]      The name parameter points to memory not in a valid part of
                   the process address space.


SEE ALSO

     bind(2), socket(2)


HISTORY

     The getsockname() function call appeared in 4.2BSD.


BUGS

     Names bound to sockets in the UNIX domain are inaccessible; getsockname()
     returns a zero length name.

NetBSD 1.6.2                   October 22, 2001                              1