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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
SYNOPSIS
#include <rpc/rpc.h>
int
rpc_reg(rpcprog_t prognum, rpcvers_t versnum, rpcproc_t procnum, char *(*procname)(),
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 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 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. 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 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 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.
AVAILABILITY
These functions are part of libtirpc.
SEE ALSO
select(2), rpc(3), rpcbind(3), rpc_svc_calls(3), rpc_svc_create(3), rpc_svc_err(3),
rpcbind(8)
BSD May 3, 1993 BSD
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