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RPC_SVC_REG(3)        DragonFly Library Functions Manual        RPC_SVC_REG(3)

NAME
     rpc_svc_reg, rpc_reg, svc_reg, svc_unreg, svc_auth_reg, xprt_register,
     xprt_unregister -- library routines for registering servers

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <rpc/rpc.h>

     int
     rpc_reg(rpcprog_t prognum, rpcvers_t versnum, rpcproc_t procnum,
         char *(*procname)(char *), xdrproc_t inproc, xdrproc_t outproc,
         char *nettype);

     bool_t
     svc_reg(SVCXPRT *xprt, const rpcprog_t prognum, const rpcvers_t versnum,
         void (*dispatch)(struct svc_req *, SVCXPRT *),
         const struct netconfig *netconf);

     void
     svc_unreg(const rpcprog_t prognum, const rpcvers_t versnum);

     int
     svc_auth_reg(int cred_flavor,
         enum auth_stat (*handler)(struct svc_req *, struct rpc_msg *));

     void
     xprt_register(SVCXPRT *xprt);

     void
     xprt_unregister(SVCXPRT *xprt);

DESCRIPTION
     These routines are a part of the RPC library which allows the RPC servers
     to register themselves with rpcbind (see rpcbind(8)), and associate the
     given program and version number with the dispatch function.  When the
     RPC server receives a RPC request, the library invokes the dispatch
     routine with the appropriate arguments.

Routines
     See rpc(3) for the definition of the SVCXPRT data structure.

     rpc_reg()
            Register program prognum, procedure procname, and version versnum
            with the RPC service package.  If a request arrives for program
            prognum, version versnum, and procedure procnum, procname is
            called with a pointer to its argument(s); procname should return a
            pointer to its static result(s); inproc is the XDR function used
            to decode the arguments while outproc is the XDR function used to
            encode the results.  Procedures are registered on all available
            transports of the class nettype.  See rpc(3).  This routine
            returns 0 if the registration succeeded, -1 otherwise.

     svc_reg()
            Associates prognum and versnum with the service dispatch
            procedure, dispatch.  If netconf is NULL, the service is not
            registered with the rpcbind(8) service.  If netconf is non-zero,
            then a mapping of the triple [prognum, versnum, netconf->nc_netid]
            to xprt->xp_ltaddr is established with the local rpcbind service.

            The svc_reg() routine returns 1 if it succeeds, and 0 otherwise.

     svc_unreg()
            Remove from the rpcbind service, all mappings of the triple
            [prognum, versnum, all-transports] to network address and all
            mappings within the RPC service package of the double [prognum,
            versnum] to dispatch routines.

     svc_auth_reg()
            Registers the service authentication routine handler with the
            dispatch mechanism so that it can be invoked to authenticate RPC
            requests received with authentication type cred_flavor.  This
            interface allows developers to add new authentication types to
            their RPC applications without needing to modify the libraries.
            Service implementors usually do not need this routine.

            Typical service application would call svc_auth_reg() after
            registering the service and prior to calling svc_run().  When
            needed to process an RPC credential of type cred_flavor, the
            handler procedure will be called with two arguments, struct
            svc_req *rqst and struct rpc_msg *msg, and is expected to return a
            valid enum auth_stat value.  There is no provision to change or
            delete an authentication handler once registered.

            The svc_auth_reg() routine returns 0 if the registration is
            successful, 1 if cred_flavor already has an authentication handler
            registered for it, and -1 otherwise.

     xprt_register()
            After RPC service transport handle xprt is created, it is
            registered with the RPC service package.  This routine modifies
            the global variable svc_fdset (see rpc_svc_calls(3)).  Service
            implementors usually do not need this routine.

     xprt_unregister()
            Before an RPC service transport handle xprt is destroyed, it
            unregisters itself with the RPC service package.  This routine
            modifies the global variable svc_fdset (see rpc_svc_calls(3)).
            Service implementors usually do not need this routine.

SEE ALSO
     select(2), rpc(3), rpcbind(3), rpc_svc_calls(3), rpc_svc_create(3),
     rpc_svc_err(3), rpcbind(8)

DragonFly 3.5                     May 3, 1993                    DragonFly 3.5