RPC(3)                    (2020-11-01)                     RPC(3)

     NAME
          rpc - library routines for remote procedure calls

     SYNOPSIS AND DESCRIPTION
          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.

          To take use of these routines, include the header file
          <rpc/rpc.h>.

          The prototypes below make use of the following types:

              typedef int bool_t;

              typedef bool_t (*xdrproc_t) (XDR *, void *, ...);

              typedef bool_t (*resultproc_t) (caddr_t resp,
                                              struct sockaddr_in *raddr);

          See the header files for the declarations of the AUTH,
          CLIENT, SVCXPRT, and XDR types.

          void auth_destroy(AUTH *auth);

               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().

          AUTH *authnone_create(void);

               Create and return an RPC authentication handle that
               passes nonusable authentication information with each
               remote procedure call.  This is the default authentica-
               tion used by RPC.

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

               Create and return an RPC authentication handle that
               contains authentication information.  The parameter
               host is the name of the machine on which the informa-
               tion 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.

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          AUTH *authunix_create_default(void);

               Calls authunix_create() with the appropriate parame-
               ters.

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

               Call the remote procedure associated with prognum,
               versnum, and procnum on the machine, host. The parame-
               ter 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.

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

               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:

                   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.

          enum clnt_stat clnt_call(CLIENT *clnt, unsigned long procnum,
                              xdrproc_t inproc, char *in,

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                              xdrproc_t outproc, char *out,
                              struct timeval tout);

               A macro that calls the remote procedure procnum associ-
               ated 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(CLIENT *clnt);

               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.

          CLIENT *clnt_create(char *host, unsigned long prog,
                              unsigned long vers, char *proto);

               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
               lqudprq and lqtcprq.  Default timeouts are set, but can be
               modified using clnt_control().

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

          bool_t clnt_control(CLIENT *cl, int req, char *info

               A macro used to change or retrieve various information
               about a client object.  req indicates the type of oper-
               ation, 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.

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                   CLGET_SERVER_ADDR  struct sockaddr_in  // get serveraqs 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(CLIENT * clnt, xdrproc_t outproc, char *out

               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 success-
               fully freed, and zero otherwise.

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

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

          void clnt_pcreateerror(char *s);

               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.  Used when a
               clnt_create(), clntraw_create(), clnttcp_create(), or
               clntudp_create() call fails.

          void clnt_perrno(enum clnt_stat stat);

               Print a message to standard error corresponding to the
               condition indicated by stat. Used after callrpc().

          clnt_perror(CLIENT *clnt, char *s);

               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.
               Used after clnt_call().

          char *clnt_spcreateerror(char *s);

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

               Bugs: returns pointer to static data that is overwrit-
               ten on each call.

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          char *clnt_sperrno(enum clnt_stat stat);

               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.  The string ends with a
               NEWLINE.

               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 pointer to static data, but the result will not
               get overwritten on each call.

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

               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 overwrit-
               ten on each call.

          CLIENT *clntraw_create(unsigned long prognum, unsigned long versnum);

               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 correspond-
               ing 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.

          CLIENT *clnttcp_create(struct sockaddr_in *addr,
                          unsigned long prognum, unsigned long versnum,
                          int *sockp, unsigned int sendsz, unsigned int recvsz

               This routine creates an RPC client for the remote pro-
               gram 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 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

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               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.

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

               This routine creates an RPC client for the remote pro-
               gram prognum, version versnum; the client uses use
               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 portmap service is con-
               sulted 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 hold only up
               to 8 Kbytes of encoded data, this transport cannot be
               used for procedures that take large arguments or return
               huge results.

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

               This routine creates an RPC client for the remote pro-
               gram prognum, on versnum; the client uses use 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 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.

          void get_myaddress(struct sockaddr_in *addr);

               Stuff the machine's IP address into *addr, without

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               consulting the library routines that deal with
               /etc/hosts. The port number is always set to
               htons(PMAPPORT).

          struct pmaplist *pmap_getmaps(struct sockaddr_in *addr);

               A user interface to the portmap 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.

          unsigned short pmap_getport(struct sockaddr_in *addr,
                              unsigned long prognum, unsigned long versnum,
                              unsigned int protocol);

               A user interface to the portmap 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 failed to contact the
               remote portmap service.  In the latter case, the global
               variable rpc_createerr contains the RPC status.

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

               A user interface to the portmap service, which
               instructs portmap 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 lqpingrq and nothing else.  See also
               clnt_broadcast().

          bool_t pmap_set(unsigned long prognum, unsigned long versnum,
                          unsigned int protocol, unsigned short port);

               A user interface to the portmap service, which estab-
               lishes a mapping between the triple
               [prognum,versnum,protocol and port on the machine's
               portmap 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().

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          bool_t pmap_unset(unsigned long prognum, unsigned long versnum);

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

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

               Register procedure procname with the RPC service pack-
               age.  If a request arrives for program prognum, version
               versnum, and procedure procnum, procname is called with
               a pointer to its parameter(s); procname 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 regis-
               tration succeeded, -1 otherwise.

               Warning: remote procedures registered in this form are
               accessed using the UDP/IP transport; see
               svcudp_create() 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 rou-
               tine clnt_pcreateerror() to print the reason why.

          void svc_destroy(SVCXPRT *xprt);

               A macro that destroys the RPC service transport handle,
               xprt. Destruction usually involves deallocation of pri-
               vate 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 of
               interest only if a service implementor does their own
               asynchronous event processing, instead of calling
               svc_run().  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_fdset, but limited to 32 file descrip-
               tors.  This interface is obsoleted by svc_fdset.

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          svc_freeargs(SVCXPRT *xprt, xdrproc_t inproc, char *in

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

          svc_getargs(SVCXPRT *xprt, xdrproc_t inproc, char *in

               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.

          struct sockaddr_in *svc_getcaller(SVCXPRT *xprt);

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

          void svc_getreqset(fd_set *rdfds);

               This routine is of interest only if a service implemen-
               tor 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 rou-
               tine returns when all sockets associated with the value
               of rdfds have been serviced.

          void svc_getreq(int rdfds);

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

          bool_t svc_register(SVCXPRT *xprt, unsigned long prognum,
                              unsigned long versnum,
                              void (*dispatch)(svc_req *, SVCXPRT *),
                              unsigned long protocol);

               Associates prognum and versnum with the service dis-
               patch procedure, dispatch. If protocol is zero, the
               service is not registered with the portmap service.  If
               protocol is nonzero, then a mapping of the triple
               [prognum,versnum,protocol to xprt->xp_port is estab-
               lished with the local portmap service (generally
               protocol is zero, IPPROTO_UDP or IPPROTO_TCP).  The

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               procedure dispatch has the following form:

                   dispatch(struct svc_req *request, SVCXPRT *xprt);

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

          void svc_run(void);

               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.

          bool_t svc_sendreply(SVCXPRT *xprt, xdrproc_t outproc, char *out

               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; outproc
               is the XDR routine which is used to encode the results;
               and out is the address of the results.  This routine
               returns one if it succeeds, zero otherwise.

          void svc_unregister(unsigned long prognum, unsigned long versnum);

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

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

               Called by a service dispatch routine that refuses to
               perform a remote procedure call due to an authentica-
               tion error.

          void svcerr_decode(SVCXPRT *xprt);

               Called by a service dispatch routine that cannot suc-
               cessfully decode its parameters.  See also
               svc_getargs().

          void svcerr_noproc(SVCXPRT *xprt);

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

          void svcerr_noprog(SVCXPRT *xprt);

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

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          void svcerr_progvers(SVCXPRT *xprt);

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

          void svcerr_systemerr(SVCXPRT *xprt);

               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 stor-
               age, it may call this routine.

          void svcerr_weakauth(SVCXPRT *xprt);

               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).

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

               Create a service on top of any open file descriptor.
               Typically, this file 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.

          SVCXPRT *svcraw_create(void);

               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 cor-
               responding RPC client should live in the same address
               space; see clntraw_create().  This routine allows simu-
               lation of RPC and acquisition of RPC overheads (such as
               round trip times), without any kernel interference.
               This routine returns NULL if it fails.

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

               This routine creates a TCP/IP-based RPC service trans-
               port, 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 comple-
               tion, xprt->xp_sock is the transport's socket descrip-
               tor, and xprt->xp_port is the transport's port number.

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               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.

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

               This routine creates a UDP/IP-based RPC service trans-
               port, 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 comple-
               tion, xprt->xp_sock is the transport's socket descrip-
               tor, 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.

          SVCXPRT *svcudp_create(int sock);

               This call is equivalent to svcudp_bufcreate(sock,SZ,SZ)
               for some default size SZ.

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

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

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

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

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

               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.

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

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

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

               Used for describing RPC authentication information

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               messages.  This routine is useful for users who wish to
               generate RPC-style messages without using the RPC pack-
               age.

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

               Used for describing parameters to various portmap pro-
               cedures, externally.  This routine is useful for users
               who wish to generate these parameters without using the
               pmap interface.

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

               Used for describing a list of port mappings, exter-
               nally.  This routine is useful for users who wish to
               generate these parameters without using the pmap inter-
               face.

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

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

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

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

          void xprt_register(SVCXPRT *xprt);

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

          void xprt_unregister(SVCXPRT *xprt);

               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. Ser-
               vice implementors usually do not need this routine.

     ATTRIBUTES
          For an explanation of the terms used in this section, see
          attributes(7).  allbox; lbw35 lb lb l l l.
          Interface Attribute Value T{ auth_destroy(),
          authnone_create(),
          authunix_create(),
          authunix_create_default(),

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     RPC(3)                    (2020-11-01)                     RPC(3)

          callrpc(), clnt_broadcast(),
          clnt_call(), clnt_destroy(),
          clnt_create(), clnt_control(),
          clnt_freeres(), clnt_geterr(),
          clnt_pcreateerror(), clnt_perrno(),
          clnt_perror(),
          clnt_spcreateerror(),
          clnt_sperrno(), clnt_sperror(),
          clntraw_create(), clnttcp_create(),
          clntudp_create(),
          clntudp_bufcreate(),
          get_myaddress(), pmap_getmaps(),
          pmap_getport(), pmap_rmtcall(),
          pmap_set(), pmap_unset(),
          registerrpc(), svc_destroy(),
          svc_freeargs(), svc_getargs(),
          svc_getcaller(), svc_getreqset(),
          svc_getreq(), 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(),
          svctcp_create(),
          svcudp_bufcreate(),
          svcudp_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() T}   Thread safety  MT-
          Safe

     SEE ALSO
          xdr(3)

          The following manuals:
               Remote Procedure Calls: Protocol Specification
               Remote Procedure Call Programming Guide
               rpcgen Programming Guide

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

     COLOPHON
          This page is part of release 5.10  of  the  Linux  man-pages
          project.   A  description  of the project, information about
          reporting bugs, and the latest version of this page, can  be
          found at https://www.kernel.org/doc/man-pages/.

     Page 14                      Plan 9             (printed 5/17/22)