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RPC_SOC(3)                 Library Functions Manual                 RPC_SOC(3)

NAME
     rpc_soc, auth_destroy, authnone_create, authunix_create,
     authunix_create_default, callrpc, clnt_broadcast, clnt_call,
     clnt_control, clnt_create, clnt_destroy, clnt_freeres, clnt_geterr,
     clnt_pcreateerror, clnt_perrno, clnt_perror, clnt_spcreateerror,
     clnt_sperrno, clnt_sperror, clntraw_create, clnttcp_create,
     clntudp_bufcreate, clntudp_create, get_myaddress, pmap_getmaps,
     pmap_getport, pmap_rmtcall, pmap_set, pmap_unset, registerrpc,
     rpc_createerr, svc_destroy, svc_fds, svc_fdset, svc_getargs,
     svc_getcaller, svc_getreg, svc_getregset, svc_getrpccaller, svc_register,
     svc_run, svc_sendreply, svc_unregister, svcerr_auth, svcerr_decode,
     svcerr_noproc, svcerr_noprog, svcerr_progvers, svcerr_systemerr,
     svcerr_weakauth, svcfd_create, svcraw_create, xdr_accepted_reply,
     xdr_authunix_parms, xdr_callhdr, xdr_callmsg, xdr_opaque_auth, xdr_pmap,
     xdr_pmaplist, xdr_rejected_reply, xdr_replymsg, xprt_register,
     xprt_unregister - library routines for remote procedure calls

SYNOPSIS
     #include <rpc/rpc.h>

     void
     auth_destroy(AUTH *auth);

     AUTH *
     authnone_create(void);

     AUTH *
     authunix_create(char *host, int uid, int gid, int len, int *aup_gids);

     AUTH *
     authunix_create_default(void);

     int
     callrpc(char *host, int prognum, int versnum, int procnum,
         xdrproc_t inproc, char *in, xdrproc_t outproc, char *out);

     enum clnt_stat
     clnt_broadcast(u_long prognum, u_long versnum, u_long procnum,
         xdrproc_t inproc, char *in, xdrproc_t outproc, char *out,
         resultproc_t eachresult);

     enum clnt_stat
     clnt_call(CLIENT *clnt, u_long procnum, xdrproc_t inproc, char *in,
         xdrproc_t outproc, char *out, struct timeval tout);

     int
     clnt_destroy(CLIENT *clnt);

     CLIENT *
     clnt_create(const char *host, rpcprog_t prog, rpcvers_t vers,
         const char *proto);

     bool_t
     clnt_control(CLIENT *cl, u_int req, char *info);

     int
     clnt_freeres(CLIENT *clnt, xdrproc_t outproc, char *out);

     void
     clnt_geterr(CLIENT *clnt, struct rpc_err errp);

     void
     clnt_pcreateerror(const char *s);

     void
     clnt_perrno(enum clnt_stat stat);

     void
     clnt_perror(CLIENT *clnt, const char *s);

     char *
     clnt_spcreateerror(const char *s);

     char *
     clnt_sperrno(enum clnt_stat stat);

     char *
     clnt_sperror(CLIENT *rpch, const char *s);

     CLIENT *
     clntraw_create(u_long prognum, u_long versnum);

     CLIENT *
     clnttcp_create(struct sockaddr_in *addr, u_long prognum, u_long versnum,
         int *sockp, u_int sendsz, u_int recvsz);

     CLIENT *
     clntudp_create(struct sockaddr_in *addr, u_long prognum, u_long versnum,
         struct timeval wait, int *sockp);

     CLIENT *
     clntudp_bufcreate(struct sockaddr_in *addr, u_long prognum,
         u_long versnum, struct timeval wait, int *sockp,
         unsigned int sendsize, unsigned int recosize);

     int
     get_myaddress(struct sockaddr_in *addr);

     struct pmaplist *
     pmap_getmaps(struct sockaddr_in *addr);

     u_short
     pmap_getport(struct sockaddr_in *addr, u_long prognum, u_long versnum,
         u_int protocol);

     enum clnt_stat
     pmap_rmtcall(struct sockaddr_in *addr, u_long prognum, u_long versnum,
         u_long procnum, xdrproc_t inproc, char *in, xdrproc_t outproc,
         char *out, struct timeval tout, u_long *portp);

     int
     pmap_set(u_long prognum, u_long versnum, int protocol, int port);

     int
     pmap_unset(u_long prognum, u_long versnum);

     int
     registerrpc(int prognum, int versnum, int procnum, char *(*procname)(),
         xdrproc_t inproc, xdrproc_t outproc);

     struct rpc_createerr rpc_createerr;

     int
     svc_destroy(SVCXPRT *xprt);

     fd_set svc_fdset;
     int svc_fds;

     int
     svc_freeargs(SVCXPRT *xprt, xdrproc_t inproc, char *in);

     int
     svc_getargs(SVCXPRT *xprt, xdrproc_t inproc, char *in);

     struct sockaddr_in *
     svc_getcaller(SVCXPRT *xprt);

     void
     svc_getreqset(fd_set *rdfds);

     void
     svc_getreq(int rdfds);

     struct netbuf *
     svc_getrpccaller(SVCXPRT *xprt);

     bool_t
     svc_register(SVCXPRT *xprt, u_long prognum, u_long versnum,
         void (*dispatch)(), int protocol);

     void
     svc_run(void);

     bool_t
     svc_sendreply(SVCXPRT *xprt, xdrproc_t xdr_results,
         const char *location);

     void
     svc_unregister(u_long prognum, u_long versnum);

     void
     svcerr_auth(SVCXPRT *xprt, enum auth_stat why);

     void
     svcerr_decode(SVCXPRT *xprt);

     void
     svcerr_noproc(SVCXPRT *xprt);

     void
     svcerr_noprog(SVCXPRT *xprt);

     void
     svcerr_progvers(SVCXPRT *xprt, rpcvers_t low_vers, rpcvers_t high_vers);

     void
     svcerr_systemerr(SVCXPRT *xprt);

     void
     svcerr_weakauth(SVCXPRT *xprt);

     SVCXPRT *
     svcraw_create(void);

     SVCXPRT *
     svctcp_create(int sock, u_int send_buf_size, u_int recv_buf_size);

     SVCXPRT *
     svcfd_create(int fd, u_int sendsize, u_int recvsize);

     SVCXPRT *
     svcudp_bufcreate(int sock, u_int sendsize, u_int recosize);

     SVCXPRT *
     svcudp_create(int sock);

     int
     xdr_accepted_reply(XDR *xdrs, struct accepted_reply *ar);

     int
     xdr_authunix_parms(XDR *xdrs, struct authunix_parms *aupp);

     bool_t
     xdr_callhdr(XDR *xdrs, struct rpc_msg *chdr);

     int
     xdr_callmsg(XDR *xdrs, struct rpc_msg *cmsg);

     int
     xdr_opaque_auth(XDR *xdrs, struct opaque_auth *ap);

     int
     xdr_pmap(XDR *xdrs, struct pmap *regs);

     int
     xdr_pmaplist(XDR *xdrs, struct pmaplist **rp);

     int
     xdr_rejected_reply(XDR *xdrs, struct rejected_reply *rr);

     int
     xdr_replymsg(XDR *xdrs, struct rpc_msg *rmsg);

     bool_t
     xprt_register(SVCXPRT *xprt);

     void
     xprt_unregister(SVCXPRT *xprt);

DESCRIPTION
     The svc and clnt functions described in this page are the old, TS-RPC
     interface to the XDR and RPC library, and exist for backward
     compatibility. The new interface is described in the pages referenced
     from rpc(3).

     These routines allow C programs to make procedure calls on other machines
     across the network.  First, the client calls a procedure to send a data
     packet to the server.  Upon receipt of the packet, the server calls a
     dispatch routine to perform the requested service, and then sends back a
     reply.  Finally, the procedure call returns to the client.

     auth_destroy()
          A macro that destroys the authentication information associated with
          auth.  Destruction usually involves deallocation of private data
          structures.  The use of auth is undefined after calling
          auth_destroy().

     authnone_create()
          Create and returns an RPC authentication handle that passes
          nonusable authentication information with each remote procedure
          call.  This is the default authentication used by RPC.

     authunix_create()
          Create and return an RPC authentication handle that contains
          authentication information.  The parameter host is the name of the
          machine on which the information was created; uid is the user's user
          ID; gid is the user's current group id; len and aup_gids refer to a
          counted array of groups to which the user belongs.  It is easy to
          impersonate a user.

     authunix_create_default()
          Calls authunix_create() with the appropriate parameters.

     callrpc()
          Call the remote procedure associated with prognum, versnum, and
          procnum on the machine, host.  The parameter in is the address of
          the procedure's argument(s), and out is the address of where to
          place the result(s); inproc is used to encode the procedure's
          parameters, and outproc is used to decode the procedure's results.
          This routine returns zero if it succeeds, or the value of enum
          clnt_stat cast to an integer if it fails.  The routine clnt_perrno()
          is handy for translating failure statuses into messages.

          Warning: calling remote procedures with this routine uses UDP/IP as
          a transport; see clntudp_create() for restrictions.  You do not have
          control of timeouts or authentication using this routine.

     clnt_broadcast()
          Like callrpc(), except the call message is broadcast to all locally
          connected broadcast nets.  Each time it receives a response, this
          routine calls eachresult(), whose form is int eachresult(char *out,
          struct sockaddr_in *addr) where out is the same as out passed to
          clnt_broadcast(), except that the remote procedure's output is
          decoded there; addr points to the address of the machine that sent
          the results.  If eachresult() returns zero, clnt_broadcast() waits
          for more replies; otherwise it returns with appropriate status.

          Warning: broadcast sockets are limited in size to the maximum
          transfer unit of the data link.  For ethernet, this value is 1500
          bytes.

     clnt_call()
          A macro that calls the remote procedure procnum associated with the
          client handle, clnt, which is obtained with an RPC client creation
          routine such as clnt_create().  The parameter in is the address of
          the procedure's argument(s), and out is the address of where to
          place the result(s); inproc is used to encode the procedure's
          parameters, and outproc is used to decode the procedure's results;
          tout is the time allowed for results to come back.

     clnt_destroy()
          A macro that destroys the client's RPC handle.  Destruction usually
          involves deallocation of private data structures, including clnt
          itself.  Use of clnt is undefined after calling clnt_destroy().  If
          the RPC library opened the associated socket, it will close it also.
          Otherwise, the socket remains open.

     clnt_create()
          Generic client creation routine.  host identifies the name of the
          remote host where the server is located.  proto indicates which kind
          of transport protocol to use.  The currently supported values for
          this field are "udp" and "tcp".  Default timeouts are set, but can
          be modified using clnt_control().

          Warning: Using UDP has its shortcomings.  Since UDP-based RPC
          messages can only hold up to 8 Kbytes of encoded data, this
          transport cannot be used for procedures that take large arguments or
          return huge results.

     clnt_control()
          A macro used to change or retrieve various information about a
          client object.  req indicates the type of operation, and info is a
          pointer to the information.  For both UDP and TCP the supported
          values of req and their argument types and what they do are:

          CLSET_TIMEOUT         struct timeval; set total timeout.

          CLGET_TIMEOUT         struct timeval; get total timeout.

                                Note: if you set the timeout using
                                clnt_control(), the timeout parameter passed
                                to clnt_call() will be ignored in all future
                                calls.

          CLGET_SERVER_ADDR     struct sockaddr_in; get server's address.

          The following operations are valid for UDP only:

          CLSET_RETRY_TIMEOUT  struct timeval; set the retry timeout.

          CLGET_RETRY_TIMEOUT  struct timeval; get the retry timeout.

                               The retry timeout is the time that UDP RPC
                               waits for the server to reply before
                               retransmitting the request.

     clnt_freeres()
          A macro that frees any data allocated by the RPC/XDR system when it
          decoded the results of an RPC call.  The parameter out is the
          address of the results, and outproc is the XDR routine describing
          the results.  This routine returns one if the results were
          successfully freed, and zero otherwise.

     clnt_geterr()
          A macro that copies the error structure out of the client handle to
          the structure at address errp.

     clnt_pcreateerror()
          Print a message to standard error indicating why a client RPC handle
          could not be created.  The message is prepended with string s and a
          colon.  A newline character is appended at the end of the message.
          Used when a clnt_create(), clntraw_create(), clnttcp_create(), or
          clntudp_create() call fails.

     clnt_perrno()
          Print a message to standard error corresponding to the condition
          indicated by stat.  A newline character is appended at the end of
          the message.  Used after callrpc().

     clnt_perror()
          Print a message to standard error indicating why an RPC call failed;
          clnt is the handle used to do the call.  The message is prepended
          with string s and a colon.  A newline character is appended at the
          end of the message.  Used after clnt_call().

     clnt_spcreateerror()
          Like clnt_pcreateerror(), except that it returns a string instead of
          printing to the standard error.

          Bugs: returns pointer to static data that is overwritten on each
          call.

     clnt_sperrno()
          Take the same arguments as clnt_perrno(), but instead of sending a
          message to the standard error indicating why an RPC call failed,
          return a pointer to a string which contains the message.

          clnt_sperrno() is used instead of clnt_perrno() if the program does
          not have a standard error (as a program running as a server quite
          likely does not), or if the programmer does not want the message to
          be output with printf(3), or if a message format different than that
          supported by clnt_perrno() is to be used.  Note: unlike
          clnt_sperror() and clnt_spcreateerror(), clnt_sperrno() returns a
          pointer to static data, but the result will not get overwritten on
          each call.

     clnt_sperror()
          Like clnt_perror(), except that (like clnt_sperrno()) it returns a
          string instead of printing to standard error.

          Bugs: returns pointer to static data that is overwritten on each
          call.

     clntraw_create()
          This routine creates a toy RPC client for the remote program
          prognum, version versnum.  The transport used to pass messages to
          the service is actually a buffer within the process's address space,
          so the corresponding RPC server should live in the same address
          space; see svcraw_create().  This allows simulation of RPC and
          acquisition of RPC overheads, such as round trip times, without any
          kernel interference.  This routine returns NULL if it fails.

     clnttcp_create()
          This routine creates an RPC client for the remote program prognum,
          version versnum; the client uses TCP/IP as a transport.  The remote
          program is located at Internet address *addr.  If addr->sin_port is
          zero, then it is set to the actual port that the remote program is
          listening on (the remote rpcbind(8) or portmap service is consulted
          for this information).  The parameter sockp is a socket; if it is
          RPC_ANYSOCK, then this routine opens a new one and sets sockp.
          Since TCP-based RPC uses buffered I/O , the user may specify the
          size of the send and receive buffers with the parameters sendsz and
          recvsz; values of zero choose suitable defaults.  This routine
          returns NULL if it fails.

     clntudp_create()
          This routine creates an RPC client for the remote program prognum,
          version versnum; the client uses UDP/IP as a transport.  The remote
          program is located at Internet address addr.  If addr->sin_port is
          zero, then it is set to actual port that the remote program is
          listening on (the remote rpcbind(8) or portmap service is consulted
          for this information).  The parameter sockp is a socket; if it is
          RPC_ANYSOCK, then this routine opens a new one and sets sockp.  The
          UDP transport resends the call message in intervals of wait time
          until a response is received or until the call times out.  The total
          time for the call to time out is specified by clnt_call.

          Warning: since UDP-based RPC messages can only hold up to 8 Kbytes
          of encoded data, this transport cannot be used for procedures that
          take large arguments or return huge results.

     clntudp_bufcreate()
          This routine creates an RPC client for the remote program prognum,
          on versnum; the client uses UDP/IP as a transport.  The remote
          program is located at Internet address addr.  If addr->sin_port is
          zero, then it is set to actual port that the remote program is
          listening on (the remote rpcbind(8) or portmap service is consulted
          for this information).  The parameter sockp is a socket; if it is
          RPC_ANYSOCK, then this routine opens a new one and sets sockp.  The
          UDP transport resends the call message in intervals of wait time
          until a response is received or until the call times out.  The total
          time for the call to time out is specified by clnt_call.

          This allows the user to specify the maximum packet size for sending
          and receiving UDP-based RPC messages.

     get_myaddress()
          Stuff the machine's IP address into *addr, without consulting the
          library routines that deal with /etc/hosts.  The port number is
          always set to htons(PMAPPORT).  Returns zero on success, non-zero on
          failure.

     pmap_getmaps()
          A user interface to the rpcbind(8) service, which returns a list of
          the current RPC program-to-port mappings on the host located at IP
          address *addr.  This routine can return NULL.  The command
                rpcinfo -p
          uses this routine.

     pmap_getport()
          A user interface to the rpcbind(8) service, which returns the port
          number on which waits a service that supports program number
          prognum, version versnum, and speaks the transport protocol
          associated with protocol.  The value of protocol is most likely
          IPPROTO_UDP or IPPROTO_TCP.  A return value of zero means that the
          mapping does not exist or that the RPC system failured to contact
          the remote rpcbind(8) service.  In the latter case, the global
          variable rpc_createerr() contains the RPC status.

     pmap_rmtcall()
          A user interface to the rpcbind(8) service, which instructs
          rpcbind(8) on the host at IP address *addr to make an RPC call on
          your behalf to a procedure on that host.  The parameter *portp will
          be modified to the program's port number if the procedure succeeds.
          The definitions of other parameters are discussed in callrpc() and
          clnt_call().  This procedure should be used for a "ping" and nothing
          else.  See also clnt_broadcast().

     pmap_set()
          A user interface to the rpcbind(8) service, which establishes a
          mapping between the triple [prognum, versnum, protocol] and port on
          the machine's rpcbind(8) service.  The value of protocol is most
          likely IPPROTO_UDP or IPPROTO_TCP.  This routine returns one if it
          succeeds, zero otherwise.  Automatically done by svc_register().

     pmap_unset()
          A user interface to the rpcbind(8) service, which destroys all
          mapping between the triple [prognum, versnum, *] and ports on the
          machine's rpcbind(8) service.  This routine returns one if it
          succeeds, zero otherwise.

     registerrpc()
          Register procedure procname 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 parameter(s);
          progname should return a pointer to its static result(s); inproc is
          used to decode the parameters while outproc is used to encode the
          results.  This routine returns zero if the registration succeeded,
          -1 otherwise.

          Warning: remote procedures registered in this form are accessed
          using the UDP/IP transport; see svcudp_bufcreate() for restrictions.

     struct rpc_createerr rpc_createerr;
          A global variable whose value is set by any RPC client creation
          routine that does not succeed.  Use the routine clnt_pcreateerror()
          to print the reason why.

     svc_destroy()
          A macro that destroys the RPC service transport handle, xprt.
          Destruction usually involves deallocation of private data
          structures, including xprt itself.  Use of xprt is undefined after
          calling this routine.

     fd_set svc_fdset;
          A global variable reflecting the RPC service side's read file
          descriptor bit mask; it is suitable as a parameter to the select(2)
          system call.  This is only of interest if a service implementor does
          not call svc_run(), but rather does his own asynchronous event
          processing.  This variable is read-only (do not pass its address to
          select(2)!), yet it may change after calls to svc_getreqset() or any
          creation routines.

     int svc_fds;
          Similar to svc_fedset(), but limited to 32 descriptors.  This
          interface is obsoleted by svc_fdset().

     svc_freeargs()
          A macro that frees any data allocated by the RPC/XDR system when it
          decoded the arguments to a service procedure using svc_getargs().
          This routine returns 1 if the results were successfully freed, and
          zero otherwise.

     svc_getargs()
          A macro that decodes the arguments of an RPC request associated with
          the RPC service transport handle, xprt.  The parameter in is the
          address where the arguments will be placed; inproc is the XDR
          routine used to decode the arguments.  This routine returns one if
          decoding succeeds, and zero otherwise.

     svc_getcaller()
          The obsolete way of getting the network address of the caller of a
          procedure associated with the RPC service transport handle, xprt,
          use svc_getrpccaller().

     svc_getreqset()
          This routine is only of interest if a service implementor does not
          call svc_run(), but instead implements custom asynchronous event
          processing.  It is called when the select(2) system call has
          determined that an RPC request has arrived on some RPC socket(s) ;
          rdfds is the resultant read file descriptor bit mask.  The routine
          returns when all sockets associated with the value of rdfds have
          been serviced.

     svc_getreq()
          Similar to svc_getreqset(), but limited to 32 descriptors.  This
          interface is obsoleted by svc_getreqset().

     svc_getrpccaller()
          The approved way of getting the network address of the caller of a
          procedure associated with the RPC service transport handle, xprt.

     svc_register()
          Associates prognum and versnum with the service dispatch procedure,
          dispatch.  If protocol is zero, the service is not registered with
          the rpcbind(8) service.  If protocol is non-zero, then a mapping of
          the triple [prognum, versnum, protocol] to xprt->xp_port is
          established with the local rpcbind(8) service (generally protocol is
          zero, IPPROTO_UDP or IPPROTO_TCP).  The procedure dispatch has the
          following form: int dispatch(struct svc_req *request, SVCXPRT
          *xprt).

          The svc_register() routine returns one if it succeeds, and zero
          otherwise.

     svc_run()
          This routine never returns.  It waits for RPC requests to arrive,
          and calls the appropriate service procedure using svc_getreq() when
          one arrives.  This procedure is usually waiting for a select(2)
          system call to return.

     svc_sendreply()
          Called by an RPC service's dispatch routine to send the results of a
          remote procedure call.  The parameter xprt is the request's
          associated transport handle; xdr_results is the XDR routine which is
          used to encode the results; and xdr_location is the address of the
          results.  This routine returns one if it succeeds, zero otherwise.

     svc_unregister()
          Remove all mapping of the double [prognum, versnum] to dispatch
          routines, and of the triple [prognum, versnum, *] to port number.

     svcerr_auth()
          Called by a service dispatch routine that refuses to perform a
          remote procedure call due to an authentication error.

     svcerr_decode()
          Called by a service dispatch routine that cannot successfully decode
          its parameters.  See also svc_getargs().

     svcerr_noproc()
          Called by a service dispatch routine that does not implement the
          procedure number that the caller requests.

     svcerr_noprog()
          Called when the desired program is not registered with the RPC
          package.  Service implementors usually do not need this routine.

     svcerr_progvers()
          Called when the desired version of a program is not registered with
          the RPC package.  Service implementors usually do not need this
          routine.

     svcerr_systemerr()
          Called by a service dispatch routine when it detects a system error
          not covered by any particular protocol.  For example, if a service
          can no longer allocate storage, it may call this routine.

     svcerr_weakauth()
          Called by a service dispatch routine that refuses to perform a
          remote procedure call due to insufficient authentication parameters.
          The routine calls svcerr_auth(xprt, AUTH_TOOWEAK).

     svcraw_create()
          This routine creates a toy RPC service transport, to which it
          returns a pointer.  The transport is really a buffer within the
          process's address space, so the corresponding RPC client should live
          in the same address space; see clntraw_create().  This routine
          allows simulation of RPC and acquisition of RPC overheads (such as
          round trip times), without any kernel interference.  This routine
          returns NULL if it fails.

     svctcp_create()
          This routine creates a TCP/IP-based RPC service transport, to which
          it returns a pointer.  The transport is associated with the socket
          sock, which may be RPC_ANYSOCK, in which case a new socket is
          created.  If the socket is not bound to a local TCP port, then this
          routine binds it to an arbitrary port.  Upon completion,
          xprt->xp_sock is the transport's socket descriptor, and
          xprt->xp_port is the transport's port number.  This routine returns
          NULL if it fails.  Since TCP-based RPC uses buffered I/O , users may
          specify the size of buffers; values of zero choose suitable
          defaults.

     svcfd_create()
          Create a service on top of any open descriptor.  Typically, this
          descriptor is a connected socket for a stream protocol such as TCP.
          sendsize and recvsize indicate sizes for the send and receive
          buffers.  If they are zero, a reasonable default is chosen.

     svcudp_bufcreate()
          This routine creates a UDP/IP-based RPC service transport, to which
          it returns a pointer.  The transport is associated with the socket
          sock, which may be RPC_ANYSOCK, in which case a new socket is
          created.  If the socket is not bound to a local UDP port, then this
          routine binds it to an arbitrary port.  Upon completion,
          xprt->xp_sock is the transport's socket descriptor, and
          xprt->xp_port is the transport's port number.  This routine returns
          NULL if it fails.

          This allows the user to specify the maximum packet size for sending
          and receiving UDP-based RPC messages.

     svcudp_create()
          This acts as svcudp_bufcreate() with predefined sizes for the
          maximum packet sizes.

     xdr_accepted_reply()
          Used for encoding RPC reply messages.  This routine is useful for
          users who wish to generate RPC-style messages without using the RPC
          package.

     xdr_authunix_parms()
          Used for describing UNIX credentials.  This routine is useful for
          users who wish to generate these credentials without using the RPC
          authentication package.

     xdr_callhdr()
          Used for describing RPC call header messages.  This routine is
          useful for users who wish to generate RPC-style messages without
          using the RPC package.

     xdr_callmsg()
          Used for describing RPC call messages.  This routine is useful for
          users who wish to generate RPC-style messages without using the RPC
          package.

     xdr_opaque_auth()
          Used for describing RPC authentication information messages.  This
          routine is useful for users who wish to generate RPC-style messages
          without using the RPC package.

     xdr_pmap()
          Used for describing parameters to various rpcbind(8) procedures,
          externally.  This routine is useful for users who wish to generate
          these parameters without using the pmap interface.

     xdr_pmaplist()
          Used for describing a list of port mappings, externally.  This
          routine is useful for users who wish to generate these parameters
          without using the pmap interface.

     xdr_rejected_reply()
          Used for describing RPC reply messages.  This routine is useful for
          users who wish to generate RPC-style messages without using the RPC
          package.

     xdr_replymsg()
          Used for describing RPC reply messages.  This routine is useful for
          users who wish to generate RPC-style messages without using the RPC
          package.

     xprt_register()
          After RPC service transport handles are created, they should
          register themselves with the RPC service package.  This routine
          modifies the global variable svc_fds.  Service implementors usually
          do not need this routine.

     xprt_unregister()
          Before an RPC service transport handle is destroyed, it should
          unregister itself with the RPC service package.  This routine
          modifies the global variable svc_fds.  Service implementors usually
          do not need this routine.

SEE ALSO
     xdr(3)

     The following manuals:

     Remote Procedure Calls: Protocol Specification.

     Remote Procedure Call Programming Guide.

     rpcgen Programming Guide.


     Sun Microsystems, Inc., USC-ISI, "RPC: Remote Procedure Call Protocol
     Specification", RFC, 1050.

NetBSD 10.99                   December 29, 2016                  NetBSD 10.99