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(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(rpcprog_t prognum, rpcvers_t versnum,
          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(struct netconfig *netconf, const char *host,
          rpcprog_t prognum, rpcvers_t versnum, rpcproc_t procnum,
          xdrproc_t inproc, void *in,
          xdrproc_t outproc, void *out,
          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(rpcprog_t prognum, rpcvers_t versnum,
          struct netconfig *netconf, 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 netconf must
          correspond to a network token, as defined by the netconfig database,
          for the svcaddr. This routine returns 1 if it succeeds, 0 otherwise.
          [See also svc_reg in rpc_svc_calls(3N)].

     bool_t
     rpcb_unset(rpcprog_t prognum, rpcvers_t versnum,
          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)