rpcbind(3N)                                                     rpcbind(3N)


   NAME
         rpcbind:   rpcb_getmaps, rpcb_getaddr, rpcb_gettime, rpcb_rmtcall,
         rpcb_set, rpcb_unset - library routines for RPC bind service.

   DESCRIPTION
         These routines allow client C programs to make procedure calls to the
         RPC binder service.  rpcbind [see rpcbind(1M)] maintains a list of
         mappings between programs and their universal addresses.

      Routines
         #include <rpc/rpc.h>

         struct rpcblist *
         rpcb_getmaps(const struct netconfig *netconf, const char *host);

               A user interface to the rpcbind service, which returns a list
               of the current RPC program-to-address mappings on the host
               named.  It uses the transport specified through netconf to
               contact the remote rpcbind service on host host.  This routine
               will return NULL, if the remote rpcbind could not be contacted.

         bool_t
         rpcb_getaddr(const u_long prognum, const u_long versnum,
               const struct netconfig *netconf, struct netbuf *svcaddr,
               const char *host);

               A user interface to the rpcbind service, which finds the
               address of the service on host that is registered with program
               number prognum, version versnum, and speaks the transport
               protocol associated with netconf.  The address found is
               returned in svcaddr.  svcaddr should be preallocated.  This
               routine returns 1 if it succeeds.  A return value of 0 means
               that the mapping does not exist or that the RPC system failed
               to contact the remote rpcbind service.  In the latter case, the
               global variable rpc_createerr contains the RPC status.

         bool_t
         rpcb_gettime(const char *host, time_t *timep);

               This routine returns the time on host in timep.  If host is
               NULL, rpcb_gettime returns the time on its own machine.  This
               routine returns 1 if it succeeds, 0 if it fails.  rpcb_gettime
               can be used to synchronize the time between the client and the
               remote server. This routine is particularly useful for secure
               RPC.

         enum clnt_stat
         rpcb_rmtcall(const struct netconfig *netconf, const char *host,
               const u_long prognum, const u_long versnum, const u_long procnum,
               const xdrproc_t inproc, const caddr_t in,
               const xdrproc_t outproc, const caddr_t out,


   7/91                                                                 Page 1

   rpcbind(3N)                                                     rpcbind(3N)


               const struct timeval tout, struct netbuf  *svcaddr);

               A user interface to the rpcbind service, which instructs
               rpcbind on host to make an RPC call on your behalf to a
               procedure on that host.  The parameter *svcaddr will be
               modified to the server's address if the procedure succeeds [see
               rpc_call and clnt_call in rpc_clnt_calls(3N) for the
               definitions of other parameters].  This procedure should
               normally be used for a ping and nothing else [see rpc_broadcast
               in rpc_clnt_calls(3N)].  This routine allows programs to do
               lookup and call, all in one step.

         bool_t
         rpcb_set(const u_long prognum, const u_long versnum,
               const struct netconfig *netconf, const struct netbuf *svcaddr);

               A user interface to the rpcbind service, which establishes a
               mapping between the triple [prognum, versnum, netconf-
               >nc_netid] and svcaddr on the machine's rpcbind service.  The
               value of transport must correspond to a network token that is
               defined by the netconfig database.  This routine returns 1 if
               it succeeds, 0 otherwise.  [See also svc_reg in
               rpc_svc_calls(3N)].

         bool_t
         rpcb_unset(const u_long prognum, const u_long versnum,
               const struct netconfig *netconf);

               A user interface to the rpcbind service, which destroys all
               mapping between the triple [prognum, versnum, netconf-
               >nc_netid] and the address on the machine's rpcbind service.
               If netconf is NULL, rpcb_unset destroys all mapping between the
               triple [prognum, versnum, *] and the addresses on the machine's
               rpcbind service.  This routine returns 1 if it succeeds, 0
               otherwise.  [See also svc_unreg in rpc_svc_calls(3N)].

   SEE ALSO
         rpc_clnt_calls(3N), rpc_svc_calls(3N), rpcbind(1M), rpcinfo(1M).















   Page 2                                                                 7/91