Bring in a hybrid of SunSoft's transport-independent RPC (TI-RPC) and

associated changes that had to happen to make this possible as well as
bugs fixed along the way.

  Bring in required TLI library routines to support this.

  Since we don't support TLI we've essentially copied what NetBSD
  has done, adding a thin layer to emulate direct the TLI calls
  into BSD socket calls.

  This is mostly from Sun's tirpc release that was made in 1994,
  however some fixes were backported from the 1999 release (supposedly
  only made available after this porting effort was underway).

  The submitter has agreed to continue on and bring us up to the
  1999 release.

  Several key features are introduced with this update:
    Client calls are thread safe. (1999 code has server side thread
    safe)
    Updated, a more modern interface.

  Many userland updates were done to bring the code up to par with
  the recent RPC API.

  There is an update to the pthreads library, a function
  pthread_main_np() was added to emulate a function of Sun's threads
  library.

  While we're at it, bring in NetBSD's lockd, it's been far too
  long of a wait.

  New rpcbind(8) replaces portmap(8) (supporting communication over
  an authenticated Unix-domain socket, and by default only allowing
  set and unset requests over that channel). It's much more secure
  than the old portmapper.

  Umount(8), mountd(8), mount_nfs(8), nfsd(8) have also been upgraded
  to support TI-RPC and to support IPV6.

  Umount(8) is also fixed to unmount pathnames longer than 80 chars,
  which are currently truncated by the Kernel statfs structure.

Submitted by: Martin Blapp <mb@imp.ch>
Manpage review: ru
Secure RPC implemented by: wpaul

1 files changed, 490 insertions, 1502 deletions

diff --git a/lib/libc/rpc/rpc.3 b/lib/libc/rpc/rpc.3
index e2c73cf..fdd2851 100644
--- a/lib/libc/rpc/rpc.3
+++ b/lib/libc/rpc/rpc.3
@@ -1,1519 +1,507 @@
-.\" @(#)rpc.3n	2.4 88/08/08 4.0 RPCSRC; from 1.19 88/06/24 SMI
+.\" @(#)rpc.3n 1.31 93/08/31 SMI; from SVr4
+.\" Copyright 1989 AT&T
+.\" $NetBSD: rpc.3,v 1.10 2000/06/02 23:11:12 fvdl Exp $
 .\" $FreeBSD$
-.\"
-.Dd February 16, 1988
+.Dd May 7, 1993
 .Dt RPC 3
 .Os
 .Sh NAME
 .Nm rpc
-.Nd "library routines for remote procedure calls"
+.Nd library routines for remote procedure calls
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
-.Fd "#include <rpc/rpc.h>"
-.Pp
-See
-.Sx DESCRIPTION
-for function declarations.
+.Fd #include <rpc/rpc.h>
+.Fd #include <netconfig.h>
 .Sh 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.
-.Pp
-Routines that are used for Secure
-.Tn RPC ( DES
-authentication) are described in
-.Xr rpc_secure 3 .
-Secure
-.Tn RPC
-can be used only if
-.Tn DES
-encryption is available.
-.Bl -tag -width indent -compact
-.Pp
-.It Xo
-.Ft void
-.Xc
-.It Xo
-.Fn auth_destroy "AUTH *auth"
-.Xc
-.Pp
-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 .
-.Pp
-.It Xo
-.Ft "AUTH *"
-.Xc
-.It Xo
-.Fn authnone_create
-.Xc
-.Pp
-Create and return an
-.Tn RPC
-authentication handle that passes nonusable authentication
-information with each remote procedure call.
-This is the
-default authentication used by
-.Tn RPC .
-.Pp
-.It Xo
-.Ft "AUTH *"
-.Xc
-.It Xo
-.Fn authunix_create "char *host" "int uid" "int gid" "int len" "int *aup_gids"
-.Xc
-.Pp
-Create and return an
-.Tn RPC
-authentication handle that contains
-.Ux
-authentication information.
-The parameter
-.Fa host
-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.
-.Pp
-.It Xo
-.Ft "AUTH *"
-.Xc
-.It Xo
-.Fn authunix_create_default
-.Xc
-.Pp
-Calls
-.Fn authunix_create
-with the appropriate parameters.
-.Pp
-.It Xo
-.Fo callrpc
-.Fa "char *host"
-.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"
-.Fc
-.Xc
-.Pp
-Call the remote procedure associated with
-.Fa prognum ,
-.Fa versnum ,
-and
-.Fa procnum
-on the machine
-.Fa host .
-The parameter
-.Fa in
-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 parameters, 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.
-.Pp
-Warning: calling remote procedures with this routine
-uses
-.Tn UDP/IP
-as a transport; see
-.Fn clntudp_create
-for restrictions.
-You do not have control of timeouts or authentication using
-this routine.
-.Pp
-.It Xo
-.Ft "enum clnt_stat"
-.Xc
-.It Xo
-.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
-.Xc
-.Pp
-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:
-.Bd -ragged -offset indent
-.Ft bool_t
-.Fn eachresult "caddr_t out" "struct sockaddr_in *addr"
-.Ed
-.Pp
-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.
-.Pp
-Warning: broadcast sockets are limited in size to the
-maximum transfer unit of the data link.
-For ethernet,
-this value is 1500 bytes.
-.Pp
-.It Xo
-.Ft "enum clnt_stat"
-.Xc
-.It Xo
-.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
-.Xc
-.Pp
-A macro that calls the remote procedure
-.Fa procnum
-associated with the client handle,
-.Fa clnt ,
-which is obtained with an
-.Tn RPC
-client creation routine such as
-.Fn clnt_create .
-The parameter
-.Fa in
-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 parameters, and
-.Fa outproc
-is used to decode the procedure's results;
-.Fa tout
-is the time allowed for results to come back.
-.Pp
-.It Xo
-.Ft void
-.Fn clnt_destroy "CLIENT *clnt"
-.Xc
-.Pp
-A macro that destroys the client's
-.Tn 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
-.Tn RPC
-library opened the associated socket, it will close it also.
-Otherwise, the socket remains open.
-.Pp
-.It Xo
-.Ft CLIENT *
-.Xc
-.It Xo
-.Fn clnt_create "char *host" "u_long prog" "u_long vers" "char *proto"
-.Xc
-.Pp
-Generic client creation routine.
-.Fa host
-identifies the name of the remote host where the server
-is located.
-.Fa proto
-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 .
-.Pp
-Warning: Using
-.Tn UDP
-has its shortcomings.
-Since
-.Tn UDP Ns \-based
-.Tn 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.
-.Pp
-.It Xo
-.Ft bool_t
-.Xc
-.It Xo
-.Fn clnt_control "CLIENT *cl" "u_int req" "char *info"
-.Xc
-.Pp
-A macro used to change or retrieve various information
-about a client object.
-.Fa req
-indicates the type of operation, and
-.Fa info
-is a pointer to the information.
-For both
-.Tn UDP
-and
-.Tn TCP ,
-the supported values of
-.Fa req
-and their argument types and what they do are:
-.Bl -column "CLSET_RETRY_TIMEOUT" "struct sockaddr_in"
-.It Dv CLSET_TIMEOUT Ta Xo
-.Vt "struct timeval" Ta "set total timeout"
-.Xc
-.It Dv CLGET_TIMEOUT Ta Xo
-.Vt "struct timeval" Ta "get total timeout"
-.Xc
-.El
-.Pp
-Note: if you set the timeout using
-.Fn clnt_control ,
-the timeout parameter passed to
-.Fn clnt_call
-will be ignored in all future calls.
-.Bl -column "CLSET_RETRY_TIMEOUT" "struct sockaddr_in"
-.It Dv CLGET_SERVER_ADDR Ta Xo
-.Vt "struct sockaddr_in" Ta "get server's address"
-.Xc
-.El
-.Pp
-The following operations are valid for
-.Tn UDP
-only:
-.Bl -column "CLSET_RETRY_TIMEOUT" "struct sockaddr_in"
-.It Dv CLSET_RETRY_TIMEOUT Ta Xo
-.Vt "struct timeval" Ta "set the retry timeout"
-.Xc
-.It Dv CLGET_RETRY_TIMEOUT Ta Xo
-.Vt "struct timeval" Ta "get the retry timeout"
-.Xc
-.El
-.Pp
-The retry timeout is the time that
-.Tn "UDP RPC"
-waits for the server to reply before
-retransmitting the request.
-.Pp
-.It Xo
-.Ft bool_t
-.Fn clnt_freeres "CLIENT *clnt" "xdrproc_t outproc" "char *out"
-.Xc
-.Pp
-A macro that frees any data allocated by the
-.Tn RPC/XDR
-system when it decoded the results of an
-.Tn RPC
-call.
-The parameter
-.Fa out
-is the address of the results, and
-.Fa outproc
-is the
-.Tn XDR
-routine describing the results.
-This routine returns one if the results were successfully
-freed,
-and zero otherwise.
-.Pp
-.It Xo
-.Ft void
-.Xc
-.It Xo
-.Fn clnt_geterr "CLIENT *clnt" "struct rpc_err *errp"
-.Xc
-.Pp
-A macro that copies the error structure out of the client
-handle
-to the structure at address
-.Fa errp .
-.Pp
-.It Xo
-.Ft void
-.Xc
-.It Xo
-.Fn clnt_pcreateerror "char *s"
-.Xc
-.Pp
-prints a message to standard error indicating
-why a client
-.Tn RPC
-handle could not be created.
-The message is prepended with string
-.Fa s
-and a colon.
-Used when a
+These
+routines allow C language programs to make procedure
+calls on other machines across a network.
+First, the client sends a request to the server.
+On receipt of the request, the server calls a dispatch routine
+to perform the requested service, and then sends back a reply.
+.Pp
+All
+RPC routines require the header
+.Aq Pa rpc/rpc.h .
+Routines that take a
+.Vt "struct netconfig"
+also require that
+.Aq Pa netconfig.h
+be included.
+.Sh Nettype
+Some of the high-level
+RPC interface routines take a
+.Fa nettype
+string as one of the parameters
+(for example,
 .Fn clnt_create ,
-.Fn clntraw_create ,
-.Fn clnttcp_create ,
-or
-.Fn clntudp_create
-call fails.
-.Pp
-.It Xo
-.Ft void
-.Xc
-.It Xo
-.Fn clnt_perrno "enum clnt_stat stat"
-.Xc
-.Pp
-Print a message to standard error corresponding
-to the condition indicated by
-.Fa stat .
-Used after
-.Fn callrpc .
-.Pp
-.It Xo
-.Ft void
-.Fn clnt_perror "CLIENT *clnt" "char *s"
-.Xc
-.Pp
-Print a message to standard error indicating why an
-.Tn RPC
-call failed;
-.Fa clnt
-is the handle used to do the call.
-The message is prepended with string
-.Fa s
-and a colon.
-Used after
-.Fn clnt_call .
-.Pp
-.It Xo
-.Ft "char *"
-.Xc
-.It Xo
-.Fn clnt_spcreateerror "char *s"
-.Xc
-.Pp
-Like
-.Fn clnt_pcreateerror ,
-except that it returns a string
-instead of printing to the standard error.
-.Pp
-Bugs: returns pointer to static data that is overwritten
-on each call.
-.Pp
-.It Xo
-.Ft "char *"
-.Xc
-.It Xo
-.Fn clnt_sperrno "enum clnt_stat stat"
-.Xc
-.Pp
-Take the same arguments as
-.Fn clnt_perrno ,
-but instead of sending a message to the standard error
-indicating why an
-.Tn RPC
-call failed, return a pointer to a string which contains
-the message.
-The string ends with a newline
-.Pq Ql "\en" .
-.Pp
-.Fn clnt_sperrno
-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.
-.Pp
-Note: unlike
-.Fn clnt_sperror
-and
-.Fn clnt_spcreaterror ,
-.Fn clnt_sperrno
-returns pointer to static data, but the
-result will not get overwritten on each call.
-.Pp
-.It Xo
-.Ft "char *"
-.Xc
-.It Xo
-.Fn clnt_sperror "CLIENT *rpch" "char *s"
-.Xc
-.Pp
-Like
-.Fn clnt_perror ,
-except that (like
-.Fn clnt_sperrno )
-it returns a string instead of printing to standard error.
-.Pp
-Bugs: returns pointer to static data that is overwritten
-on each call.
-.Pp
-.It Xo
-.Ft "CLIENT *"
-.Xc
-.It Xo
-.Fn clntraw_create "u_long prognum" "u_long versnum"
-.Xc
-.Pp
-This routine creates a toy
-.Tn 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
-.Tn RPC
-server should live in the same address space; see
-.Fn svcraw_create .
-This allows simulation of
-.Tn RPC
-and acquisition of
-.Tn RPC
-overheads, such as round trip times, without any
-kernel interference.
-This routine returns
-.Dv NULL
-if it fails.
-.Pp
-.It Xo
-.Ft "CLIENT *"
-.Xc
-.It Xo
-.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
-.Xc
-.Pp
-This routine creates an
-.Tn RPC
-client for the remote program
-.Fa prognum ,
-version
-.Fa versnum ;
-the client uses
-.Tn 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
-.Xr portmap 8
-service is consulted for this information).
-The parameter
-.Fa sockp
-is a socket; if it is
-.Dv RPC_ANYSOCK ,
-then this routine opens a new one and sets
-.Fa sockp .
-Since
-.Tn TCP Ns \-based
-.Tn RPC
-uses buffered
-.Tn I/O ,
-the user may specify the size of the send and receive buffers
-with the parameters
-.Fa sendsz
-and
-.Fa recvsz ;
-values of zero choose suitable defaults.
-This routine returns
-.Dv NULL
-if it fails.
-.Pp
-.It Xo
-.Ft "CLIENT *"
-.Xc
-.It Xo
-.Fo clntudp_create
-.Fa "struct sockaddr_in *addr"
-.Fa "u_long prognum"
-.Fa "u_long versnum"
-.Fa "struct timeval wait"
-.Fa "int *sockp"
-.Fc
-.Xc
-.Pp
-This routine creates an
-.Tn RPC
-client for the remote program
-.Fa prognum ,
-version
-.Fa versnum ;
-the client uses
-.Tn 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
-.Xr portmap 8
-service is consulted for this information).
-The parameter
-.Fa sockp
-is a socket; if it is
-.Dv RPC_ANYSOCK ,
-then this routine opens a new one and sets
-.Fa sockp .
-The
-.Tn 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 .
-.Pp
-Warning: since
-.Tn UDP Ns \-based
-.Tn 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.
-.Pp
-.It Xo
-.Ft "CLIENT *"
-.Xc
-.It Xo
-.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
-.Xc
-.Pp
-This routine creates an
-.Tn RPC
-client for the remote program
-.Fa prognum ,
-on
-.Fa versnum ;
-the client uses
-.Tn 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
-.Xr portmap 8
-service is consulted for this information).
-The parameter
-.Fa sockp
-is a socket; if it is
-.Dv RPC_ANYSOCK ,
-then this routine opens a new one and sets
-.Fa sockp .
-The
-.Tn 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 .
-.Pp
-This allows the user to specify the maximum packet size
-for sending and receiving
-.Tn UDP Ns \-based
-.Tn RPC
-messages.
-.Pp
-.It Xo
-.Ft int
-.Xc
-.It Xo
-.Fn get_myaddress "struct sockaddr_in *addr"
-.Xc
-.Pp
-Stuff the machine's
-.Tn IP
-address into
-.Fa addr ,
-without consulting the library routines that deal with
-.Pa /etc/hosts .
-The port number is always set to
-.Fn htons PMAPPORT .
-Returns zero on success, non-zero on failure.
-.Pp
-.It Xo
-.Ft "struct pmaplist *"
-.Xc
-.It Xo
-.Fn pmap_getmaps "struct sockaddr_in *addr"
-.Xc
-.Pp
-A user interface to the
-.Xr portmap 8
-service, which returns a list of the current
-.Tn RPC
-program\-to\-port mappings
-on the host located at
-.Tn IP
-address
-.Fa addr .
-This routine can return
-.Dv NULL .
-The command
-.Dq Nm rpcinfo Fl p
-uses this routine.
-.Pp
-.It Xo
-.Ft u_short
-.Xc
-.It Xo
-.Fo pmap_getport
-.Fa "struct sockaddr_in *addr"
-.Fa "u_long prognum"
-.Fa "u_long versnum"
-.Fa "u_long protocol"
-.Fc
-.Xc
-.Pp
-A user interface to the
-.Xr portmap 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
-.Dv IPPROTO_UDP
+.Fn svc_create ,
+.Fn rpc_reg ,
+.Fn rpc_call ) .
+This string defines a class of transports which can be used
+for a particular application.
+.Pp
+.Fa nettype
+can be one of the following:
+.Bl -tag -width datagram_v
+.It netpath
+Choose from the transports which have been
+indicated by their token names in the
+.Ev NETPATH
+environment variable.
+.Ev NETPATH
+is unset or
+.Dv NULL ,
+it defaults to
+.Qq visible .
+.Qq netpath
+is the default
+.Fa nettype .
+.It visible
+Choose the transports which have the visible flag (v)
+set in the
+.Pa /etc/netconfig
+file.
+.It circuit_v
+This is same as
+.Qq visible
+except that it chooses only the connection oriented transports
+(semantics
+.Qq tpi_cots
 or
-.Dv IPPROTO_TCP .
-A return value of zero means that the mapping does not exist
-or that
-the
-.Tn RPC
-system failed to contact the remote
-.Xr portmap 8
-service.
-In the latter case, the global variable
-.Va rpc_createerr
-contains the
-.Tn RPC
-status.
-.Pp
-.It Xo
-.Ft "enum clnt_stat"
-.Xc
-.It Xo
-.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
-.Xc
-.Pp
-A user interface to the
-.Xr portmap 8
-service, which instructs
-.Xr portmap 8
-on the host at
-.Tn IP
-address
-.Fa addr
-to make an
-.Tn RPC
-call on your behalf to a procedure on that host.
-The parameter
-.Fa portp
-will be modified to the program's port number if the
-procedure
-succeeds.
-The definitions of other parameters are discussed
-in
-.Fn callrpc
-and
-.Fn clnt_call .
-This procedure should be used for a
-.Dq ping
-and nothing
-else.
-See also
-.Fn clnt_broadcast .
-.Pp
-.It Xo
-.Ft bool_t
-.Fn pmap_set "u_long prognum" "u_long versnum" "u_long protocol" "u_short port"
-.Xc
-.Pp
-A user interface to the
-.Xr portmap 8
-service, which establishes a mapping between the triple
-.Pq Fa prognum , versnum , protocol
-and
-.Fa port
-on the machine's
-.Xr portmap 8
-service.
-The value of
-.Fa protocol
-is most likely
-.Dv IPPROTO_UDP
+.Qq tpi_cots_ord )
+from the entries in the
+.Pa /etc/netconfig
+file.
+.It datagram_v
+This is same as
+.Qq visible
+except that it chooses only the connectionless datagram transports
+(semantics
+.Qq tpi_clts )
+from the entries in the
+.Pa /etc/netconfig
+file.
+.It circuit_n
+This is same as
+.Qq netpath
+except that it chooses only the connection oriented datagram transports
+(semantics
+.Qq tpi_cots
 or
-.Dv IPPROTO_TCP .
-This routine returns one if it succeeds, zero otherwise.
-Automatically done by
-.Fn svc_register .
-.Pp
-.It Xo
-.Ft bool_t
-.Fn pmap_unset "u_long prognum" "u_long versnum"
-.Xc
-.Pp
-A user interface to the
-.Xr portmap 8
-service, which destroys all mapping between the triple
-.Pq Fa prognum , versnum , *
-and
-.Fa ports
-on the machine's
-.Xr portmap 8
-service.
-This routine returns one if it succeeds, zero
-otherwise.
-.Pp
-.It Xo
-.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
-.Xc
-.Pp
-Register procedure
-.Fa procname
-with the
-.Tn 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 parameter(s);
-.Fa progname
-should return a pointer to its static result(s);
-.Fa inproc
-is used to decode the parameters while
-.Fa outproc
-is used to encode the results.
-This routine returns zero if the registration succeeded, \-1
-otherwise.
-.Pp
-Warning: remote procedures registered in this form
-are accessed using the
-.Tn UDP/IP
-transport; see
-.Fn svcudp_create
-for restrictions.
-.Pp
-.It Xo
-.Vt "struct rpc_createerr" rpc_createerr ;
-.Xc
-.Pp
-A global variable whose value is set by any
-.Tn RPC
-client creation routine
-that does not succeed.
-Use the routine
-.Fn clnt_pcreateerror
-to print the reason why.
-.Pp
-.It Xo
-.Ft bool_t
-.Fn svc_destroy "SVCXPRT * xprt"
-.Xc
-.Pp
-A macro that destroys the
-.Tn 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.
-.Pp
-.It Xo
-.Vt fd_set svc_fdset ;
-.Xc
-.Pp
-A global variable reflecting the
-.Tn RPC
-service side's
-read file descriptor bit mask; it is suitable as a template parameter
-to the
-.Xr 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
-.Xr 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
-.Dv FD_SETSIZE ,
-this variable will only be usable for the first
-.Dv FD_SETSIZE
-descriptors.
-.Pp
-.It Xo
-.Vt int svc_fds ;
-.Xc
-.Pp
-Similar to
-.Va svc_fdset ,
-but limited to 32 descriptors.
-This
-interface is obsoleted by
-.Va svc_fdset .
-.Pp
-.It Xo
-.Ft bool_t
-.Fn svc_freeargs "SVCXPRT *xprt" "xdrproc_t inproc" "char *in"
-.Xc
-.Pp
-A macro that frees any data allocated by the
-.Tn 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.
-.Pp
-.It Xo
-.Ft bool_t
-.Fn svc_getargs "SVCXPRT *xprt" "xdrproc_t inproc" "char *in"
-.Xc
-.Pp
-A macro that decodes the arguments of an
-.Tn RPC
-request
-associated with the
-.Tn RPC
-service transport handle,
-.Fa xprt .
-The parameter
-.Fa in
-is the address where the arguments will be placed;
-.Fa inproc
-is the
-.Tn XDR
-routine used to decode the arguments.
-This routine returns one if decoding succeeds, and zero
-otherwise.
-.Pp
-.It Xo
-.Ft "struct sockaddr_in *"
-.Xc
-.It Xo
-.Fn svc_getcaller "SVCXPRT *xprt"
-.Xc
-.Pp
-The approved way of getting the network address of the caller
-of a procedure associated with the
-.Tn RPC
-service transport handle,
-.Fa xprt .
-.Pp
-.It Xo
-.Ft void
-.Fn svc_getreqset "fd_set *rdfds"
-.Xc
-.Pp
-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
-.Xr select 2
-system call has determined that an
-.Tn RPC
-request has arrived on some
-.Tn 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.
-.Pp
-.It Xo
-.Ft void
-.Fn svc_getreq "int rdfds"
-.Xc
-.Pp
-Similar to
-.Fn svc_getreqset ,
-but limited to 32 descriptors.
-This interface is obsoleted by
-.Fn svc_getreqset .
-.Pp
-.It Xo
-.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
-.Xc
+.Qq tpi_cots_ord ) .
+.It datagram_n
+This is same as
+.Qq netpath
+except that it chooses only the connectionless datagram transports
+(semantics
+.Qq tpi_clts ) .
+.It udp
+This refers to Internet UDP, both version 4 and 6.
+.It tcp
+This refers to Internet TCP, both version 4 and 6.
+.El
 .Pp
-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
-.Xr portmap 8
-service.
-If
-.Fa protocol
-is non-zero, then a mapping of the triple
-.Pq Fa prognum , versnum , protocol
-to
-.Fa xprt\->xp_port
-is established with the local
-.Xr portmap 8
-service (generally
-.Fa protocol
-is zero,
-.Dv IPPROTO_UDP
-or
-.Dv IPPROTO_TCP ) .
-The procedure
-.Fn dispatch
-has the following form:
-.Bd -ragged -offset indent
-.Ft bool_t
-.Fn dispatch "struct svc_req *request" "SVCXPRT *xprt"
+.Fa nettype
+is
+.Dv NULL ,
+it defaults to
+.Qq netpath .
+The transports are tried in left to right order in the
+.Ev NETPATH
+variable or in top to down order in the
+.Pa /etc/netconfig
+file.
+.Sh Derived Types
+The derived types used in the RPC interfaces are defined as follows:
+.Bd -literal
+	typedef u_int32_t rpcprog_t;
+	typedef u_int32_t rpcvers_t;
+	typedef u_int32_t rpcproc_t;
+	typedef u_int32_t rpcprot_t;
+	typedef u_int32_t rpcport_t;
+	typedef   int32_t rpc_inline_t;
 .Ed
-.Pp
-The
-.Fn svc_register
-routine returns one if it succeeds, and zero otherwise.
-.Pp
-.It Xo
-.Fn svc_run
-.Xc
-.Pp
-This routine never returns.
-It waits for
-.Tn RPC
-requests to arrive, and calls the appropriate service
-procedure using
-.Fn svc_getreq
-when one arrives.
-This procedure is usually waiting for a
-.Xr select 2
-system call to return.
-.Pp
-.It Xo
-.Ft bool_t
-.Fn svc_sendreply "SVCXPRT *xprt" "xdrproc_t outproc" "char *out"
-.Xc
-.Pp
-Called by an
-.Tn RPC
-service's dispatch routine to send the results of a
-remote procedure call.
-The parameter
-.Fa xprt
-is the request's associated transport handle;
-.Fa outproc
-is the
-.Tn 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.
-.Pp
-.It Xo
-.Ft void
-.Xc
-.It Xo
-.Fn svc_unregister "u_long prognum" "u_long versnum"
-.Xc
-.Pp
-Remove all mapping of the double
-.Pq Fa prognum , versnum
-to dispatch routines, and of the triple
-.Pq Fa prognum , versnum , *
-to port number.
-.Pp
-.It Xo
-.Ft void
-.Xc
-.It Xo
-.Fn svcerr_auth "SVCXPRT *xprt" "enum auth_stat why"
-.Xc
-.Pp
-Called by a service dispatch routine that refuses to perform
-a remote procedure call due to an authentication error.
-.Pp
-.It Xo
-.Ft void
-.Xc
-.It Xo
-.Fn svcerr_decode "SVCXPRT *xprt"
-.Xc
-.Pp
-Called by a service dispatch routine that cannot successfully
-decode its parameters.
-See also
-.Fn svc_getargs .
-.Pp
-.It Xo
-.Ft void
-.Xc
-.It Xo
-.Fn svcerr_noproc "SVCXPRT *xprt"
-.Xc
-.Pp
-Called by a service dispatch routine that does not implement
-the procedure number that the caller requests.
-.Pp
-.It Xo
-.Ft void
-.Xc
-.It Xo
-.Fn svcerr_noprog "SVCXPRT *xprt"
-.Xc
-.Pp
-Called when the desired program is not registered with the
-.Tn RPC
-package.
-Service implementors usually do not need this routine.
-.Pp
-.It Xo
-.Ft void
-.Xc
-.It Xo
-.Fn svcerr_progvers "SVCXPRT *xprt" "u_long low_vers" "u_long high_vers"
-.Xc
-.Pp
-Called when the desired version of a program is not registered
-with the
-.Tn RPC
-package.
-Service implementors usually do not need this routine.
-.Pp
-.It Xo
-.Ft void
-.Xc
-.It Xo
-.Fn svcerr_systemerr "SVCXPRT *xprt"
-.Xc
-.Pp
-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.
-.Pp
-.It Xo
-.Ft void
-.Xc
-.It Xo
-.Fn svcerr_weakauth "SVCXPRT *xprt"
-.Xc
-.Pp
-Called by a service dispatch routine that refuses to perform
-a remote procedure call due to insufficient
-authentication parameters.
-The routine calls
-.Fn svcerr_auth xprt AUTH_TOOWEAK .
-.Pp
-.It Xo
-.Ft "SVCXPRT *"
-.Xc
-.It Xo
-.Fn svcraw_create void
-.Xc
-.Pp
-This routine creates a toy
-.Tn RPC
-service transport, to which it returns a pointer.
-The transport
-is really a buffer within the process's address space,
-so the corresponding
-.Tn RPC
-client should live in the same
-address space;
-see
-.Fn clntraw_create .
-This routine allows simulation of
-.Tn RPC
-and acquisition of
-.Tn RPC
-overheads (such as round trip times), without any kernel
-interference.
-This routine returns
-.Dv NULL
-if it fails.
-.Pp
-.It Xo
-.Ft "SVCXPRT *"
-.Xc
-.It Xo
-.Fn svctcp_create "int sock" "u_int send_buf_size" "u_int recv_buf_size"
-.Xc
-.Pp
-This routine creates a
-.Tn TCP/IP Ns \-based
-.Tn RPC
-service transport, to which it returns a pointer.
-The transport is associated with the socket
-.Fa sock ,
-which may be
-.Dv RPC_ANYSOCK ,
-in which case a new socket is created.
-If the socket is not bound to a local
-.Tn TCP
-port, then this routine binds it to an arbitrary port.
-Upon completion,
-.Fa xprt\->xp_sock
-is the transport's socket descriptor, and
-.Fa xprt\->xp_port
-is the transport's port number.
-This routine returns
-.Dv NULL
-if it fails.
-Since
-.Tn TCP Ns \-based
-.Tn RPC
-uses buffered
-.Tn I/O ,
-users may specify the size of buffers; values of zero
-choose suitable defaults.
-.Pp
-.It Xo
-.Ft "SVCXPRT *"
-.Xc
-.It Xo
-.Fn svcfd_create "int fd" "u_int sendsize" "u_int recvsize"
-.Xc
-.Pp
-Create a service on top of any open descriptor.
-Typically,
-this
-descriptor is a connected socket for a stream protocol such
-as
-.Tn TCP .
-.Fa sendsize
-and
-.Fa recvsize
-indicate sizes for the send and receive buffers.
-If they are
-zero, a reasonable default is chosen.
-.Pp
-.It Xo
-.Ft "SVCXPRT *"
-.Xc
-.It Xo
-.Fn svcudp_bufcreate "int sock" "u_int sendsize" "u_int recvsize"
-.Xc
-.Pp
-This routine creates a
-.Tn UDP/IP Ns \-based
-.Tn RPC
-service transport, to which it returns a pointer.
-The transport is associated with the socket
-.Fa sock ,
-which may be
-.Dv RPC_ANYSOCK ,
-in which case a new socket is created.
-If the socket is not bound to a local
-.Tn UDP
-port, then this routine binds it to an arbitrary port.
-Upon
-completion,
-.Fa xprt\->xp_sock
-is the transport's socket descriptor, and
-.Fa xprt\->xp_port
-is the transport's port number.
-This routine returns
-.Dv NULL
-if it fails.
-.Pp
-This allows the user to specify the maximum packet size for sending and
-receiving
-.Tn UDP Ns \-based
-.Tn RPC
-messages.
-.Pp
-.It Xo
-.Ft bool_t
-.Fn xdr_accepted_reply "XDR *xdrs" "struct accepted_reply *ar"
-.Xc
-.Pp
-Used for encoding
-.Tn RPC
-reply messages.
-This routine is useful for users who
-wish to generate
-.Tn RPC Ns \-style
-messages without using the
-.Tn RPC
-package.
-.Pp
-.It Xo
-.Ft bool_t
-.Fn xdr_authunix_parms "XDR *xdrs" "struct authunix_parms *aupp"
-.Xc
-.Pp
-Used for describing
-.Ux
-credentials.
-This routine is useful for users
-who wish to generate these credentials without using the
-.Tn RPC
-authentication package.
-.Pp
-.It Xo
-.Ft void
-.Xc
-.It Xo
-.Ft bool_t
-.Fn xdr_callhdr "XDR *xdrs" "struct rpc_msg *chdr"
-.Xc
-.Pp
-Used for describing
-.Tn RPC
-call header messages.
-This routine is useful for users who wish to generate
-.Tn RPC Ns \-style
-messages without using the
-.Tn RPC
-package.
-.Pp
-.It Xo
-.Ft bool_t
-.Fn xdr_callmsg "XDR *xdrs" "struct rpc_msg *cmsg"
-.Xc
-.Pp
-Used for describing
-.Tn RPC
-call messages.
-This routine is useful for users who wish to generate
-.Tn RPC Ns \-style
-messages without using the
-.Tn RPC
-package.
-.Pp
-.It Xo
-.Ft bool_t
-.Fn xdr_opaque_auth "XDR *xdrs" "struct opaque_auth *ap"
-.Xc
-.Pp
-Used for describing
-.Tn RPC
-authentication information messages.
-This routine is useful for users who wish to generate
-.Tn RPC Ns \-style
-messages without using the
-.Tn RPC
-package.
-.Pp
-.It Xo
-.Vt struct pmap ;
-.Xc
-.It Xo
-.Ft bool_t
-.Fn xdr_pmap "XDR *xdrs" "struct pmap *regs"
-.Xc
-.Pp
-Used for describing parameters to various
-.Xr portmap 8
-procedures, externally.
-This routine is useful for users who wish to generate
-these parameters without using the
-.Fn pmap_*
-interface.
-.Pp
-.It Xo
-.Ft bool_t
-.Fn xdr_pmaplist "XDR *xdrs" "struct pmaplist **rp"
-.Xc
-.Pp
-Used for describing a list of port mappings, externally.
-This routine is useful for users who wish to generate
-these parameters without using the
-.Fn pmap_*
-interface.
-.Pp
-.It Xo
-.Ft bool_t
-.Fn xdr_rejected_reply "XDR *xdrs" "struct rejected_reply *rr"
-.Xc
-.Pp
-Used for describing
-.Tn RPC
-reply messages.
-This routine is useful for users who wish to generate
-.Tn RPC Ns \-style
-messages without using the
-.Tn RPC
-package.
-.Pp
-.It Xo
-.Ft bool_t
-.Fn xdr_replymsg "XDR *xdrs" "struct rpc_msg *rmsg"
-.Xc
-.Pp
-Used for describing
-.Tn RPC
-reply messages.
-This routine is useful for users who wish to generate
-.Tn RPC
-style messages without using the
-.Tn RPC
-package.
-.Pp
-.It Xo
-.Ft void
-.Xc
-.It Xo
-.Fn xprt_register "SVCXPRT *xprt"
-.Xc
-.Pp
-After
-.Tn RPC
-service transport handles are created,
-they should register themselves with the
-.Tn RPC
-service package.
-This routine modifies the global variable
-.Va svc_fds .
-Service implementors usually do not need this routine.
-.Pp
-.It Xo
-.Ft void
-.Xc
-.It Xo
-.Fn xprt_unregister "SVCXPRT *xprt"
-.Xc
-.Pp
-Before an
-.Tn RPC
-service transport handle is destroyed,
-it should unregister itself with the
-.Tn RPC
-service package.
-This routine modifies the global variable
-.Va svc_fds .
-Service implementors usually do not need this routine.
+.Sh "Data Structures"
+Some of the data structures used by the
+RPC package are shown below.
+.Sh "The AUTH Structure"
+.Bd -literal
+/*
+ * Authentication info. Opaque to client.
+ */
+struct opaque_auth {
+    enum_t    oa_flavor;    /* flavor of auth */
+    caddr_t    oa_base;    /* address of more auth stuff */
+    u_int    oa_length;    /* not to exceed MAX_AUTH_BYTES */
+};
+
+/*
+ * Auth handle, interface to client side authenticators.
+ */
+typedef struct {
+    struct    opaque_auth    ah_cred;
+    struct    opaque_auth    ah_verf;
+    struct auth_ops {
+        void    (*ah_nextverf)(\|);
+        int    (*ah_marshal)(\|);    /* nextverf & serialize */
+        int    (*ah_validate)(\|);    /* validate verifier */
+        int    (*ah_refresh)(\|);    /* refresh credentials */
+        void    (*ah_destroy)(\|);    /* destroy this structure */
+    } *ah_ops;
+    caddr_t ah_private;
+} AUTH;
+.Ed
+.Sh "The CLIENT Structure"
+.Bd -literal
+/*
+ * Client rpc handle.
+ * Created by individual implementations.
+ * Client is responsible for initializing auth.
+ */
+
+typedef struct {
+    AUTH    *cl_auth;    /* authenticator */
+    struct clnt_ops {
+        enum clnt_stat    (*cl_call)();    /* call remote procedure */
+        void    (*cl_abort)();        /* abort a call */
+        void    (*cl_geterr)();        /* get specific error code */
+        bool_t    (*cl_freeres)();    /* frees results */
+        void    (*cl_destroy)();    /* destroy this structure */
+        bool_t    (*cl_control)();    /* the ioctl() of rpc */
+    } *cl_ops;
+    caddr_t    cl_private;    /* private stuff */
+    char    *cl_netid;    /* network identifier */
+    char    *cl_tp;        /* device name */
+} CLIENT;
+.Ed
+.Sh "The SVCXPRT structure"
+.Bd -literal
+enum xprt_stat {
+    XPRT_DIED,
+    XPRT_MOREREQS,
+    XPRT_IDLE
+};
+
+/*
+ * Server side transport handle
+ */
+typedef struct {
+    int    xp_fd;    /* file descriptor for the server handle */
+    u_short    xp_port;    /* obsolete */
+    const struct xp_ops {
+        bool_t    (*xp_recv)();    /* receive incoming requests */
+        enum xprt_stat    (*xp_stat)();    /* get transport status */
+        bool_t    (*xp_getargs)();    /* get arguments */
+        bool_t    (*xp_reply)();      /* send reply */
+        bool_t    (*xp_freeargs)(); /* free mem allocated for args */
+        void    (*xp_destroy)();    /* destroy this struct */
+    } *xp_ops;
+    int    xp_addrlen;    /* length of remote addr.  Obsolete */
+    struct sockaddr_in    xp_raddr; /* Obsolete */
+    const struct xp_ops2 {
+        bool_t    (*xp_control)();    /* catch-all function */
+    } *xp_ops2;
+    char    *xp_tp;    /* transport provider device name */
+    char    *xp_netid;    /* network identifier */
+    struct netbuf    xp_ltaddr;    /* local transport address */
+    struct netbuf    xp_rtaddr;    /* remote transport address */
+    struct opaque_auth    xp_verf;    /* raw response verifier */
+    caddr_t    xp_p1;    /* private: for use by svc ops */
+    caddr_t    xp_p2;    /* private: for use by svc ops */
+    caddr_t    xp_p3;    /* private: for use by svc lib */
+    int    xp_type    /* transport type */
+} SVCXPRT;
+.Ed
+.Sh "The svc_reg structure"
+.Bd -literal
+struct svc_req {
+    rpcprog_t    rq_prog;    /* service program number */
+    rpcvers_t    rq_vers;    /* service protocol version */
+    rpcproc_t    rq_proc;    /* the desired procedure */
+    struct opaque_auth    rq_cred;    /* raw creds from the wire */
+    caddr_t    rq_clntcred;    /* read only cooked cred */
+    SVCXPRT    *rq_xprt;    /* associated transport */
+};
+.Ed
+.Sh  "The XDR structure"
+.Bd -literal
+/*
+ * XDR operations.
+ * XDR_ENCODE causes the type to be encoded into the stream.
+ * XDR_DECODE causes the type to be extracted from the stream.
+ * XDR_FREE can be used to release the space allocated by an XDR_DECODE
+ * request.
+ */
+enum xdr_op {
+    XDR_ENCODE=0,
+    XDR_DECODE=1,
+    XDR_FREE=2
+};
+/*
+ * This is the number of bytes per unit of external data.
+ */
+#define BYTES_PER_XDR_UNIT    (4)
+#define RNDUP(x)  ((((x) + BYTES_PER_XDR_UNIT - 1) /
+                   BYTES_PER_XDR_UNIT) \e * BYTES_PER_XDR_UNIT)
+
+/*
+ * A xdrproc_t exists for each data type which is to be encoded or
+ * decoded.  The second argument to the xdrproc_t is a pointer to
+ * an opaque pointer.  The opaque pointer generally points to a
+ * structure of the data type to be decoded.  If this points to 0,
+ * then the type routines should allocate dynamic storage of the
+ * appropriate size and return it.
+ * bool_t  (*xdrproc_t)(XDR *, caddr_t *);
+ */
+typedef  bool_t (*xdrproc_t)();
+
+/*
+ * The XDR handle.
+ * Contains operation which is being applied to the stream,
+ * an operations vector for the particular implementation
+ */
+typedef struct {
+    enum xdr_op    x_op;    /* operation; fast additional param */
+    struct xdr_ops {
+        bool_t    (*x_getlong)();    /* get a long from underlying stream */
+        bool_t    (*x_putlong)();    /* put a long to underlying stream */
+        bool_t    (*x_getbytes)(); /* get bytes from underlying stream */
+        bool_t    (*x_putbytes)(); /* put bytes to underlying stream */
+        u_int    (*x_getpostn)(); /* returns bytes off from beginning */
+        bool_t    (*x_setpostn)(); /* lets you reposition the stream */
+        long *    (*x_inline)();    /* buf quick ptr to buffered data */
+        void    (*x_destroy)();    /* free privates of this xdr_stream */
+    } *x_ops;
+    caddr_t    x_public;    /* users' data */
+    caddr_t    x_private;    /* pointer to private data */
+    caddr_t    x_base;    /* private used for position info */
+    int    x_handy;    /* extra private word */
+} XDR;
+
+/*
+ * The netbuf structure. This structure is defined in <xti.h> on SysV
+ * systems, but NetBSD / FreeBSD do not use XTI.
+ *
+ * Usually, buf will point to a struct sockaddr, and len and maxlen
+ * will contain the length and maximum length of that socket address,
+ * respectively.
+ */
+struct netbuf {
+	unsigned int maxlen;
+	unsigned int len;
+	void *buf;
+};
+
+/*
+ * The format of the addres and options arguments of the XTI t_bind call.
+ * Only provided for compatibility, it should not be used other than
+ * as an argument to svc_tli_create().
+ */
+
+struct t_bind {
+	struct netbuf   addr;
+	unsigned int    qlen;
+};
+.Ed
+.Sh "Index to Routines"
+The following table lists RPC routines and the manual reference
+pages on which they are described:
+.Pp
+.Bl -tag -width "authunix_create_default()" -compact
+.It Em "RPC Routine"
+.Em "Manual Reference Page"
+.Pp
+.It Fn auth_destroy
+.Xr rpc_clnt_auth 3
+.It Fn authdes_create
+.Xr rpc_soc 3
+.It Fn authnone_create
+.Xr rpc_clnt_auth 3
+.It Fn authsys_create
+.Xr rpc_clnt_auth 3
+.It Fn authsys_create_default
+.Xr rpc_clnt_auth 3
+.It Fn authunix_create
+.Xr rpc_soc 3
+.It Fn authunix_create_default
+.Xr rpc_soc 3
+.It Fn callrpc
+.Xr rpc_soc 3
+.It Fn clnt_broadcast
+.Xr rpc_soc 3
+.It Fn clnt_call
+.Xr rpc_clnt_calls 3
+.It Fn clnt_control
+.Xr rpc_clnt_create 3
+.It Fn clnt_create
+.Xr rpc_clnt_create 3
+.It Fn clnt_destroy
+.Xr rpc_clnt_create 3
+.It Fn clnt_dg_create
+.Xr rpc_clnt_create 3
+.It Fn clnt_freeres
+.Xr rpc_clnt_calls 3
+.It Fn clnt_geterr
+.Xr rpc_clnt_calls 3
+.It Fn clnt_pcreateerror
+.Xr rpc_clnt_create 3
+.It Fn clnt_perrno
+.Xr rpc_clnt_calls 3
+.It Fn clnt_perror
+.Xr rpc_clnt_calls 3
+.It Fn clnt_raw_create
+.Xr rpc_clnt_create 3
+.It Fn clnt_spcreateerror
+.Xr rpc_clnt_create 3
+.It Fn clnt_sperrno
+.Xr rpc_clnt_calls 3
+.It Fn clnt_sperror
+.Xr rpc_clnt_calls 3
+.It Fn clnt_tli_create
+.Xr rpc_clnt_create 3
+.It Fn clnt_tp_create
+.Xr rpc_clnt_create 3
+.It Fn clnt_udpcreate
+.Xr rpc_soc 3
+.It Fn clnt_vc_create
+.Xr rpc_clnt_create 3
+.It Fn clntraw_create
+.Xr rpc_soc 3
+.It Fn clnttcp_create
+.Xr rpc_soc 3
+.It Fn clntudp_bufcreate
+.Xr rpc_soc 3
+.It Fn get_myaddress
+.Xr rpc_soc 3
+.It Fn pmap_getmaps
+.Xr rpc_soc 3
+.It Fn pmap_getport
+.Xr rpc_soc 3
+.It Fn pmap_rmtcall
+.Xr rpc_soc 3
+.It Fn pmap_set
+.Xr rpc_soc 3
+.It Fn pmap_unset
+.Xr rpc_soc 3
+.It Fn registerrpc
+.Xr rpc_soc 3
+.It Fn rpc_broadcast
+.Xr rpc_clnt_calls 3
+.It Fn rpc_broadcast_exp
+.Xr rpc_clnt_calls 3
+.It Fn rpc_call
+.Xr rpc_clnt_calls 3
+.It Fn rpc_reg
+.Xr rpc_svc_calls 3
+.It Fn svc_create
+.Xr rpc_svc_create 3
+.It Fn svc_destroy
+.Xr rpc_svc_create 3
+.It Fn svc_dg_create
+.Xr rpc_svc_create 3
+.It Fn svc_dg_enablecache
+.Xr rpc_svc_calls 3
+.It Fn svc_fd_create
+.Xr rpc_svc_create 3
+.It Fn svc_fds
+.Xr rpc_soc 3
+.It Fn svc_freeargs
+.Xr rpc_svc_reg 3
+.It Fn svc_getargs
+.Xr rpc_svc_reg 3
+.It Fn svc_getcaller
+.Xr rpc_soc 3
+.It Fn svc_getreq
+.Xr rpc_soc 3
+.It Fn svc_getreqset
+.Xr rpc_svc_calls 3
+.It Fn svc_getrpccaller
+.Xr rpc_svc_calls 3
+.It Fn svc_kerb_reg
+.Xr kerberos_rpc 3
+.It Fn svc_raw_create
+.Xr rpc_svc_create 3
+.It Fn svc_reg
+.Xr rpc_svc_calls 3
+.It Fn svc_register
+.Xr rpc_soc 3
+.It Fn svc_run
+.Xr rpc_svc_reg 3
+.It Fn svc_sendreply
+.Xr rpc_svc_reg 3
+.It Fn svc_tli_create
+.Xr rpc_svc_create 3
+.It Fn svc_tp_create
+.Xr rpc_svc_create 3
+.It Fn svc_unreg
+.Xr rpc_svc_calls 3
+.It Fn svc_unregister
+.Xr rpc_soc 3
+.It Fn svc_vc_create
+.Xr rpc_svc_create 3
+.It Fn svcerr_auth
+.Xr rpc_svc_err 3
+.It Fn svcerr_decode
+.Xr rpc_svc_err 3
+.It Fn svcerr_noproc
+.Xr rpc_svc_err 3
+.It Fn svcerr_noprog
+.Xr rpc_svc_err 3
+.It Fn svcerr_progvers
+.Xr rpc_svc_err 3
+.It Fn svcerr_systemerr
+.Xr rpc_svc_err 3
+.It Fn svcerr_weakauth
+.Xr rpc_svc_err 3
+.It Fn svcfd_create
+.Xr rpc_soc 3
+.It Fn svcraw_create
+.Xr rpc_soc 3
+.It Fn svctcp_create
+.Xr rpc_soc 3
+.It Fn svcudp_bufcreate
+.Xr rpc_soc 3
+.It Fn svcudp_create
+.Xr rpc_soc 3
+.It Fn xdr_accepted_reply
+.Xr rpc_xdr 3
+.It Fn xdr_authsys_parms
+.Xr rpc_xdr 3
+.It Fn xdr_authunix_parms
+.Xr rpc_soc 3
+.It Fn xdr_callhdr
+.Xr rpc_xdr 3
+.It Fn xdr_callmsg
+.Xr rpc_xdr 3
+.It Fn xdr_opaque_auth
+.Xr rpc_xdr 3
+.It Fn xdr_rejected_reply
+.Xr rpc_xdr 3
+.It Fn xdr_replymsg
+.Xr rpc_xdr 3
+.It Fn xprt_register
+.Xr rpc_svc_calls 3
+.It Fn xprt_unregister
+.Xr rpc_svc_calls 3
+.El
+.Sh FILES
+.Bl -tag -width /etc/netconfig
+.It Pa /etc/netconfig
 .El
 .Sh SEE ALSO
-.Xr rpc_secure 3 ,
-.Xr xdr 3
-.Rs
-.%T "Remote Procedure Calls: Protocol Specification"
-.Re
-.Rs
-.%T "Remote Procedure Call Programming Guide"
-.Re
-.Rs
-.%T "rpcgen Programming Guide"
-.Re
-.Rs
-.%T "RPC: Remote Procedure Call Protocol Specification"
-.%O RFC1050
-.%Q "Sun Microsystems, Inc., USC-ISI"
-.Re
+.Xr getnetconfig 3 ,
+.Xr getnetpath 3 ,
+.Xr rpc_clnt_auth 3 ,
+.Xr rpc_clnt_calls 3 ,
+.Xr rpc_clnt_create 3 ,
+.Xr rpc_svc_calls 3 ,
+.Xr rpc_svc_create 3 ,
+.Xr rpc_svc_err 3 ,
+.Xr rpc_svc_reg 3 ,
+.Xr rpc_xdr 3 ,
+.Xr rpcbind 3 ,
+.Xr xdr 3 ,
+.Xr netconfig 5