RPC_SOC

Section: C Library Functions (3)
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BSD mandoc

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 clntunix_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_getreq svc_getreqset svc_register svc_run svc_sendreply svc_unregister svcerr_auth svcerr_decode svcerr_noproc svcerr_noprog svcerr_progvers svcerr_systemerr svcerr_weakauth svcfd_create svcunixfd_create svcraw_create svcunix_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

In rpc/rpc.h

See Sx DESCRIPTION for function declarations.

DESCRIPTION

Bf -symbolic The Fn svc_* and Fn 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). Ef

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.

Routines that are used for Secure RPC ( DES authentication) are described in rpc_secure3. Secure RPC can be used only if DES encryption is available.

Ft void

Fn auth_destroy AUTH *auth

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

Ft AUTH *

Fn authnone_create

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

Ft AUTH *

Fn authunix_create char *host int uid int gid int len int *aup_gids

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

Ft AUTH *

Fn authunix_create_default

Calls Fn authunix_create with the appropriate arguments.

Ft int Fo callrpc Fa char *host Fa u_long prognum Fa u_long versnum Fa u_long procnum Fa xdrproc_t inproc Fa void *in Fa xdrproc_t outproc Fa void *out Fc

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

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

Ft enum clnt_stat

Fo clnt_broadcast Fa u_long prognum Fa u_long versnum Fa u_long procnum Fa xdrproc_t inproc Fa char *in Fa xdrproc_t outproc Fa char *out Fa bool_t (*eachresult)(caddr_t, struct sockaddr_in *) Fc

Like Fn callrpc , except the call message is broadcast to all locally connected broadcast nets. Each time it receives a response, this routine calls Fn eachresult , whose form is:

Ft bool_t Fn eachresult caddr_t out struct sockaddr_in *addr

where Fa out is the same as Fa out passed to Fn clnt_broadcast , except that the remote procedure's output is decoded there; Fa addr points to the address of the machine that sent the results. If Fn eachresult returns zero, Fn 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.

Ft enum clnt_stat

Fo clnt_call Fa CLIENT *clnt Fa u_long procnum Fa xdrproc_t inproc Fa char *in Fa xdrproc_t outproc Fa char *out Fa struct timeval tout Fc

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

Ft void Fn clnt_destroy CLIENT *clnt

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

Ft CLIENT *

Fn clnt_create char *host u_long prog u_long vers char *proto

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

Ft bool_t

Fn clnt_control CLIENT *cl u_int req char *info

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

CLSET_TIMEOUT Ta Vt struct timeval Ta set total timeout
CLGET_TIMEOUT Ta Vt struct timeval Ta get total timeout

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

CLGET_SERVER_ADDR Ta Vt struct sockaddr_in Ta get server's address

The following operations are valid for UDP only:

CLSET_RETRY_TIMEOUT Ta Vt struct timeval Ta set the retry timeout
CLGET_RETRY_TIMEOUT Ta Vt struct timeval Ta get the retry timeout

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

Ft bool_t Fn 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 Fa out argument is the address of the results, and Fa outproc is the XDR routine describing the results. This routine returns one if the results were successfully freed, and zero otherwise.

Ft void

Fn 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 Fa errp .

Ft void

Fn clnt_pcreateerror char *s

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

Ft void

Fn clnt_perrno enum clnt_stat stat

Print a message to standard error corresponding to the condition indicated by Fa stat . A newline is appended at the end of the message. Used after Fn callrpc .

Ft void Fn clnt_perror CLIENT *clnt char *s

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

Ft char *

Fn clnt_spcreateerror char *s

Like Fn 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.

Ft char *

Fn clnt_sperrno enum clnt_stat stat

Take the same arguments as Fn 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 Fn clnt_sperrno function is used instead of Fn 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 Fn printf , or if a message format different from that supported by Fn clnt_perrno is to be used.

Note: unlike Fn clnt_sperror and Fn clnt_spcreateerror , Fn clnt_sperrno returns pointer to static data, but the result will not get overwritten on each call.

Ft char *

Fn clnt_sperror CLIENT *rpch char *s

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

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

Ft CLIENT *

Fn clntraw_create u_long prognum u_long versnum

This routine creates a toy RPC client for the remote program Fa prognum , version Fa 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 Fn 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.

Ft CLIENT *

Fo clnttcp_create Fa struct sockaddr_in *addr Fa u_long prognum Fa u_long versnum Fa int *sockp Fa u_int sendsz Fa u_int recvsz Fc

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

Ft CLIENT *

Fo clntudp_create Fa struct sockaddr_in *addr Fa u_long prognum Fa u_long versnum Fa struct timeval wait Fa int *sockp Fc

This routine creates an RPC client for the remote program Fa prognum , version Fa versnum ; the client uses UDP/IP as a transport. The remote program is located at Internet address Fa addr . If Fa addr->sin_port is zero, then it is set to actual port that the remote program is listening on (the remote rpcbind(8) service is consulted for this information). The Fa sockp argument is a socket; if it is RPC_ANYSOCK then this routine opens a new one and sets Fa sockp . The UDP transport resends the call message in intervals of Fa 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 Fn 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.

Ft CLIENT *

Fo clntudp_bufcreate Fa struct sockaddr_in *addr Fa u_long prognum Fa u_long versnum Fa struct timeval wait Fa int *sockp Fa unsigned int sendsize Fa unsigned int recosize Fc

This routine creates an RPC client for the remote program Fa prognum , on Fa versnum ; the client uses UDP/IP as a transport. The remote program is located at Internet address Fa addr . If Fa addr->sin_port is zero, then it is set to actual port that the remote program is listening on (the remote rpcbind(8) service is consulted for this information). The Fa sockp argument is a socket; if it is RPC_ANYSOCK then this routine opens a new one and sets Fa sockp . The UDP transport resends the call message in intervals of Fa 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 Fn clnt_call .

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

Ft CLIENT *

Fo clntunix_create Fa struct sockaddr_un *raddr Fa u_long prognum Fa u_long versnum Fa int *sockp Fa u_int sendsz Fa u_int recvsz Fc

This routine creates an RPC client for the local program Fa prognum , version Fa versnum ; the client uses UNIX sockets as a transport. The local program is located at the Fa *raddr . The Fa sockp argument is a socket; if it is RPC_ANYSOCK then this routine opens a new one and sets Fa sockp . Since UNIX RPC uses buffered I/O the user may specify the size of the send and receive buffers with the Fa sendsz and Fa recvsz arguments; values of zero choose suitable defaults. This routine returns NULL if it fails.

Ft int

Fn get_myaddress struct sockaddr_in *addr

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

Ft struct pmaplist *

Fn pmap_getmaps struct sockaddr_in *addr

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 Fa addr . This routine can return NULL The command ``rpcinfo -p '' uses this routine.

Ft u_short

Fo pmap_getport Fa struct sockaddr_in *addr Fa u_long prognum Fa u_long versnum Fa u_long protocol Fc

A user interface to the rpcbind(8) service, which returns the port number on which waits a service that supports program number Fa prognum , version Fa versnum , and speaks the transport protocol associated with Fa protocol . The value of Fa 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 rpcbind(8) service. In the latter case, the global variable rpc_createerr contains the RPC status.

Ft enum clnt_stat

Fo pmap_rmtcall Fa struct sockaddr_in *addr Fa u_long prognum Fa u_long versnum Fa u_long procnum Fa xdrproc_t inproc Fa char *in Fa xdrproc_t outproc Fa char *out Fa struct timeval tout Fa u_long *portp Fc

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

Ft bool_t Fn pmap_set u_long prognum u_long versnum u_long protocol u_short port

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

Ft bool_t Fn pmap_unset u_long prognum u_long versnum

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

Ft bool_t Fo registerrpc Fa u_long prognum Fa u_long versnum Fa u_long procnum Fa char *(*procname)(void) Fa xdrproc_t inproc Fa xdrproc_t outproc Fc

Register procedure Fa procname with the RPC service package. If a request arrives for program Fa prognum , version Fa versnum , and procedure Fa procnum , Fa procname is called with a pointer to its argument(s); Fa progname should return a pointer to its static result(s); Fa inproc is used to decode the arguments while Fa 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 Fn svcudp_create for restrictions.

Vt 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 Fn clnt_pcreateerror to print the reason why.

Ft bool_t Fn svc_destroy SVCXPRT * xprt

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

Vt fd_set svc_fdset ;

A global variable reflecting the RPC service side's read file descriptor bit mask; it is suitable as a template argument to the select(2) system call. This is only of interest if a service implementor does not call Fn 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 Fn svc_getreqset or any creation routines. As well, note that if the process has descriptor limits which are extended beyond FD_SETSIZE this variable will only be usable for the first FD_SETSIZE descriptors.

Vt int svc_fds ;

Similar to svc_fdset but limited to 32 descriptors. This interface is obsoleted by svc_fdset

Ft bool_t Fn 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 procedure using Fn svc_getargs . This routine returns 1 if the results were successfully freed, and zero otherwise.

Ft bool_t Fn 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, Fa xprt . The Fa in argument is the address where the arguments will be placed; Fa inproc is the XDR routine used to decode the arguments. This routine returns one if decoding succeeds, and zero otherwise.

Ft struct sockaddr_in *

Fn 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, Fa xprt .

Ft void Fn svc_getreqset fd_set *rdfds

This routine is only of interest if a service implementor does not call Fn 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); Fa rdfds is the resultant read file descriptor bit mask. The routine returns when all sockets associated with the value of Fa rdfds have been serviced.

Ft void Fn svc_getreq int rdfds

Similar to Fn svc_getreqset , but limited to 32 descriptors. This interface is obsoleted by Fn svc_getreqset .

Ft bool_t Fo svc_register Fa SVCXPRT *xprt Fa u_long prognum Fa u_long versnum Fa void (*dispatch)(struct svc_req *, SVCXPRT *) Fa int protocol Fc

Associates Fa prognum and Fa versnum with the service dispatch procedure, Fn dispatch . If Fa protocol is zero, the service is not registered with the rpcbind(8) service. If Fa protocol is non-zero, then a mapping of the triple (Fa prognum , versnum , protocol ) to Fa xprt->xp_port is established with the local rpcbind(8) service (generally Fa protocol is zero, IPPROTO_UDP or IPPROTO_TCP ) The procedure Fn dispatch has the following form:

Ft bool_t Fn dispatch struct svc_req *request SVCXPRT *xprt

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

Fn svc_run

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

Ft bool_t Fn 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 Fa xprt argument is the request's associated transport handle; Fa outproc is the XDR routine which is used to encode the results; and Fa out is the address of the results. This routine returns one if it succeeds, zero otherwise.

Ft void

Fn svc_unregister u_long prognum u_long versnum

Remove all mapping of the double (Fa prognum , versnum ) to dispatch routines, and of the triple (Fa prognum , versnum , ) to port number.

Ft void

Fn 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 authentication error.

Ft void

Fn svcerr_decode SVCXPRT *xprt

Called by a service dispatch routine that cannot successfully decode its arguments. See also Fn svc_getargs .

Ft void

Fn svcerr_noproc SVCXPRT *xprt

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

Ft void

Fn svcerr_noprog SVCXPRT *xprt

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

Ft void

Fn svcerr_progvers SVCXPRT *xprt u_long low_vers u_long high_vers

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

Ft void

Fn 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 storage, it may call this routine.

Ft void

Fn svcerr_weakauth SVCXPRT *xprt

Called by a service dispatch routine that refuses to perform a remote procedure call due to insufficient authentication arguments. The routine calls Fn svcerr_auth xprt AUTH_TOOWEAK .

Ft SVCXPRT *

Fn 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 corresponding RPC client should live in the same address space; see Fn 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.

Ft SVCXPRT *

Fn svctcp_create int sock u_int send_buf_size u_int recv_buf_size

This routine creates a TCP/IP -based RPC service transport, to which it returns a pointer. The transport is associated with the socket Fa 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, Fa xprt->xp_fd is the transport's socket descriptor, and Fa 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.

Ft SVCXPRT *

Fn svcunix_create int sock u_int send_buf_size u_int recv_buf_size char *path

This routine creates a UNIX RPC service transport, to which it returns a pointer. The transport is associated with the socket Fa sock , which may be RPC_ANYSOCK in which case a new socket is created. The Fa *path argument is a variable-length file system pathname of at most 104 characters. This file is not removed when the socket is closed. The unlink(2) system call must be used to remove the file. Upon completion, Fa xprt->xp_fd is the transport's socket descriptor. This routine returns NULL if it fails. Since UNIX RPC uses buffered I/O users may specify the size of buffers; values of zero choose suitable defaults.

Ft SVCXPRT *

Fn svcunixfd_create int fd u_int sendsize u_int recvsize

Create a service on top of any open descriptor. The Fa sendsize and Fa recvsize arguments indicate sizes for the send and receive buffers. If they are zero, a reasonable default is chosen.

Ft SVCXPRT *

Fn svcfd_create int fd u_int sendsize u_int recvsize

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

Ft SVCXPRT *

Fn svcudp_bufcreate int sock u_int sendsize u_int recvsize

This routine creates a UDP/IP -based RPC service transport, to which it returns a pointer. The transport is associated with the socket Fa 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, Fa xprt->xp_fd is the transport's socket descriptor, and Fa 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.

Ft bool_t Fn 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 messages without using the RPC package.

Ft bool_t Fn 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.

Ft void

Ft bool_t Fn 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.

Ft bool_t Fn 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 messages without using the RPC package.

Ft bool_t Fn xdr_opaque_auth XDR *xdrs struct opaque_auth *ap

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.

Vt struct pmap ;

Ft bool_t Fn xdr_pmap XDR *xdrs struct pmap *regs

Used for describing arguments to various rpcbind(8) procedures, externally. This routine is useful for users who wish to generate these arguments without using the Fn pmap_* interface.

Ft bool_t Fn xdr_pmaplist XDR *xdrs struct pmaplist **rp

Used for describing a list of port mappings, externally. This routine is useful for users who wish to generate these arguments without using the Fn pmap_* interface.

Ft bool_t Fn 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 messages without using the RPC package.

Ft bool_t Fn 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 messages without using the RPC package.

Ft void

Fn xprt_register SVCXPRT *xprt

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.

Ft void

Fn 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 Service implementors usually do not need this routine.

AVAILABILITY

These functions are part of libtirpc.

RPC_SOC

NAME

SYNOPSIS

DESCRIPTION

AVAILABILITY

SEE ALSO

Index