4.4BSD/usr/share/man/cat2/getsockname.0

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

NNAAMMEE
     ggeettssoocckknnaammee - get socket name

SSYYNNOOPPSSIISS
     _i_n_t
     ggeettssoocckknnaammee(_i_n_t _s, _s_t_r_u_c_t _s_o_c_k_a_d_d_r _*_n_a_m_e, _i_n_t _*_n_a_m_e_l_e_n);

DDEESSCCRRIIPPTTIIOONN
     GGeettssoocckknnaammee() returns the current _n_a_m_e for the specified socket.  The
     _n_a_m_e_l_e_n parameter should be initialized to indicate the amount of space
     pointed to by _n_a_m_e. On return it contains the actual size of the name re-
     turned (in bytes).

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

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

SSEEEE AALLSSOO
     bind(2),  socket(2)

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

HHIISSTTOORRYY
     The ggeettssoocckknnaammee function call appeared in 4.2BSD.

4.2 Berkeley Distribution        June 4, 1993                                1