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NetBSD 6.1.5 - man page for svc_unreg (netbsd section 3)

RPC_SVC_REG(3)			   BSD 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>

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

     int
     svc_reg(const SVCXPRT *xprt, const rpcprog_t prognum, const rpcvers_t versnum,
	 const 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(const int cred_flavor,
	 const enum auth_stat (*handler(struct svc_req *, struct rpc_msg *)));

     void
     xprt_register(const SVCXPRT *xprt);

     void
     xprt_unregister(const SVCXPRT *xprt);

DESCRIPTION
     These routines are a part of the RPC library which allows the RPC servers to register them-
     selves 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 ser-
	    vice package.  If a request arrives for program prognum, version versnum, and proce-
	    dure procnum, procname is called with a pointer to its parameter(s); procname should
	    return a pointer to its static result(s); inproc is the XDR function used to decode
	    the parameters while outproc is the XDR function used to encode the results.  Proce-
	    dures 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 parameters 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 reg-
	    istered.

	    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 other-
	    wise.

     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), rpc_svc_calls(3), rpc_svc_create(3), rpc_svc_err(3), rpcbind(3),
     rpcbind(8)

BSD					   May 3, 1993					      BSD


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