RPC(3N-BSD) RISC/os Reference Manual RPC(3N-BSD)
NAME
rpc - library routines for remote procedure calls
SYNOPSIS AND DESCRIPTION
Headers
For -systype svr3:
#include <bsd/sys/types.h>
#include <rpc/rpc.h>
For -systype bsd43:
#include <rpc/rpc.h>
Declarations
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.
void
authdestroy(auth)
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 authdestroy().
AUTH *
authnonecreate()
Create and returns an RPC authentication handle that
passes nonusable authentication information with each
remote procedure call. This is the default authentica-
tion used by RPC.
AUTH *
authdescreate(name, window, syncaddr, ckey)
char *name;
unsigned window;
struct sockaddr *addr;
desblock *ckey;
authdescreate() is the first of two routines which
interface to the RPC secure authentication system,
known as DES authentication. The second is
authdesgetucred(), below. Note: the keyserver daemon
keyserv(1M) must be running for the DES authentication
system to work.
Printed 11/19/92 Page 1
RPC(3N-BSD) RISC/os Reference Manual RPC(3N-BSD)
authdescreate(), used on the client side, returns an
authentication handle that will enable the use of the
secure authentication system. The first parameter name
is the network name, or netname, of the owner of the
server process. This field usually represents a host-
name derived from the utility routine host2netname, but
could also represent a user name using user2netname.
The second field is window on the validity of the
client credential, given in seconds. A small window is
more secure than a large one, but choosing too small of
a window will increase the frequency of resynchroniza-
tions because of clock drift. The third parameter syn-
caddr is optional. If it is NULL, then the authentica-
tion system will assume that the local clock is always
in sync with the server's clock, and will not attempt
resynchronizations. If an address is supplied, however,
then the system will use the address for consulting the
remote time service whenever resynchronization is
required. This parameter is usually the address of the
RPC server itself. The final parameter ckey is also
optional. If it is NULL, then the authentication sys-
tem will generate a random DES key to be used for the
encryption of credentials. If it is supplied, however,
then it will be used instead.
authdesgetucred(adc, uid, gid, grouplen, groups)
struct authdescred *adc;
short *uid;
short *gid;
short *grouplen;
int *groups;
authdesgetucred(), the second of the two DES authenti-
cation routines, is used on the server side for con-
verting a DES credential, which is operating system
independent, into a UNIX credential. This routine
differs from utility routine netname2user in that
authdesgetucred() pulls its information from a cache,
and does not have to do a Network Information Service
lookup every time it is called to get its information.
AUTH *
authunixcreate(host, uid, gid, len, aupgids)
char *host;
int uid, gid, len, *aup.gids;
Create and return an RPC authentication handle that
contains UNIX authentication information. The parame-
ter host is the name of the machine on which the infor-
mation 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.
Page 2 Printed 11/19/92
RPC(3N-BSD) RISC/os Reference Manual RPC(3N-BSD)
It is easy to impersonate a user.
AUTH *
authunixcreatedefault()
Calls authunixcreate() with the appropriate parame-
ters.
callrpc(host, prognum, versnum, procnum, inproc, in, outproc, out)
char *host;
ulong prognum, versnum, procnum;
char *in, *out;
xdrproct inproc, outproc;
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 clntstat cast to an integer if it fails. The
routine clntperrno() is handy for translating failure
statuses into messages.
Warning: calling remote procedures with this routine
uses UDP/IP as a transport; see clntudpcreate() for
restrictions. You do not have control of timeouts or
authentication using this routine.
enum clntstat
clntbroadcast(prognum, versnum, procnum, inproc, in, outproc, out, eachresult)
ulong prognum, versnum, procnum;
char *in, *out;
xdrproct inproc, outproc;
resultproct 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(out, addr)
char *out;
struct sockaddrin *addr;
where out is the same as out passed to
clntbroadcast(), 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, clntbroadcast() waits for more replies;
Printed 11/19/92 Page 3
RPC(3N-BSD) RISC/os Reference Manual RPC(3N-BSD)
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 clntstat
clntcall(clnt, procnum, inproc, in, outproc, out, tout)
CLIENT *clnt;
ulong
procnum;
xdrproct inproc, outproc;
char *in, *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
clntcreate(). 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.
clntdestroy(clnt)
CLIENT *clnt;
A macro that destroys the client's RPC handle. Destruc-
tion usually involves deallocation of private data
structures, including clnt itself. Use of clnt is
undefined after calling clntdestroy(). If the RPC
library opened the associated socket, it will close it
also. Otherwise, the socket remains open.
CLIENT *
clntcreate(host, prog, vers, proto)
char *host;
ulong prog, 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
udp and tcp. Default timeouts are set, but can be
modified using clntcontrol().
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 pro-
cedures that take large arguments or return huge
Page 4 Printed 11/19/92
RPC(3N-BSD) RISC/os Reference Manual RPC(3N-BSD)
results.
boolt
clntcontrol(cl, req, info)
CLIENT *cl;
char *info;
A macro used to change or retrieve various information
about a client object. req indicates the type of
operation, and info is a pointer to the information.
For both UDP and TCP, the supported values of req and
their argument types and what they do are:
CLSET_TIMEOUT struct timeval set total timeout
CLGET_TIMEOUT struct timeval get total timeout
Note: if you set the timeout using clntcontrol(), the
timeout parameter passed to clntcall() will be ignored
in all future calls.
CLGET_SERVER_ADDR struct sockaddr get server's address
The following operations are valid for UDP only:
CLSET_RETRY_TIMEOUT struct timevalset the retry timeout
CLGET_RETRY_TIMEOUT struct timevalget the retry timeout
The retry timeout is the time that UDP RPC waits for
the server to reply before retransmitting the request.
clntfreeres(clnt, outproc, out)
CLIENT *clnt;
xdrproct 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
clntgeterr(clnt, errp)
CLIENT *clnt;
struct rpcerr *errp;
A macro that copies the error structure out of the
client handle to the structure at address errp.
Printed 11/19/92 Page 5
RPC(3N-BSD) RISC/os Reference Manual RPC(3N-BSD)
void
clntpcreateerror(s)
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
clntcreate(), clntrawcreate(), clnttcpcreate(), or
clntudpcreate() call fails.
void
clntperrno(stat)
enum clntstat stat;
Print a message to standard error corresponding to the
condition indicated by stat. Used after callrpc().
clntperror(clnt, s)
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 clntcall().
char *
clntspcreateerror
char *s;
Like clntpcreateerror(), 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.
char *
clntsperrno(stat)
enum clntstat stat;
Take the same arguments as clntperrno(), 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.
clntsperrno() is used instead of clntperrno() 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, or if a message format different than that sup-
ported by clntperrno() is to be used. Note: unlike
Page 6 Printed 11/19/92
RPC(3N-BSD) RISC/os Reference Manual RPC(3N-BSD)
clntsperror() and clntspcreateerror(), clntsperrno()
does not return pointer to static data so the result
will not get overwritten on each call.
char *
clntsperror(rpch, s)
CLIENT *rpch;
char *s;
Like clntperror(), except that (like clntsperrno())
it returns a string instead of printing to standard
error.
Bugs: returns pointer to static data that is overwrit-
ten on each call.
CLIENT *
clntrawcreate(prognum, versnum)
ulong prognum, 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 svcrawcreate(). 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 *
clnttcpcreate(addr, prognum, versnum, sockp, sendsz, recvsz)
struct sockaddrin *addr;
ulong prognum, versnum;
int *sockp;
uint sendsz, 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 Inter-
net address *addr. If addr->sinport 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 RPCANYSOCK, then this routine opens a new one
and sets sockp. Since TCP-based RPC uses buffered I/O,
the user may specify the size of the send and receive
buffers with the parameters sendsz and recvsz; values
of zero choose suitable defaults. This routine returns
NULL if it fails.
Printed 11/19/92 Page 7
RPC(3N-BSD) RISC/os Reference Manual RPC(3N-BSD)
CLIENT *
clntudpcreate(addr, pronum, versnum, wait, sockp)
struct sockaddrin *addr;
ulong prognum, 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->sinport 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 RPCANYSOCK, 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 clntcall().
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.
host2netname(name, host, domain)
char *name;
char *host;
char *domain;
Convert from a domain-specific hostname to an
operating-system independent netname. Return TRUE if it
succeeds and FALSE if it fails. Inverse of
netname2host().
keydecryptsession(remotename, deskey)
char *remotename;
desblock *deskey;
keydecryptsession() is an interface to the keyserver
daemon, which is associated with RPC's secure authenti-
cation system (DES authentication). User programs
rarely need to call it, or its associated routines
keyencryptsession(), keygendes() and keysetsecret().
System commands such as login and the RPC library are
the main clients of these four routines.
keydecryptsession() takes a server netname and a des
key, and decrypts the key by using the the public key
of the the server and the secret key associated with
the effective uid of the calling process. It is the
inverse of keyencryptsession().
Page 8 Printed 11/19/92
RPC(3N-BSD) RISC/os Reference Manual RPC(3N-BSD)
keyencryptsession(remotename, deskey)
char *remotename;
desblock *deskey;
keyencryptsession() is a keyserver interface routine.
It takes a server netname and a des key, and encrypts
it using the public key of the the server and the
secret key associated with the effective uid of the
calling process. It is the inverse of
keydecryptsession().
keygendes(deskey)
desblock *deskey;
keygendes() is a keyserver interface routine. It is
used to ask the keyserver for a secure conversation
key. Choosing one at random is usually not good
enough, because the common ways of choosing random
numbers, such as using the current time, are very easy
to guess.
keysetsecret(key)
char *key;
keysetsecret() is a keyserver interface routine. It is
used to set the key for the effective uid of the cal-
ling process.
void
getmyaddress(addr)
struct sockaddrin *addr;
Stuff the machine's IP address into *addr, without con-
sulting the library routines that deal with /etc/hosts.
The port number is always set to htons(PMAPPORT).
getnetname(name)
char name[MAXNETNAMELEN];
getnetname() installs the unique, operating-system
independent netname of the caller in the fixed-length
array name. Returns TRUE if it succeeds and FALSE if
it fails.
netname2host(name, host, hostlen)
char *name;
char *host;
int hostlen;
Convert from an operating-system independent netname to
a domain-specific hostname. Returns TRUE if it succeeds
and FALSE if it fails. Inverse of host2netname().
Printed 11/19/92 Page 9
RPC(3N-BSD) RISC/os Reference Manual RPC(3N-BSD)
netname2user(name, uidp, gidp, gidlenp, gidlist)
char *name;
int *uidp;
int *gidp;
int *gidlenp;
int *gidlist;
Convert from an operating-system independent netname to
a domain-specific user ID. Returns TRUE if it succeeds
and FALSE if it fails. Inverse of user2netname().
struct pmaplist *
pmapgetmaps(addr)
struct sockaddrin *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 rou-
tine.
ushort
pmapgetport(addr, prognum, versnum, protocol)
struct sockaddrin *addr;
ulong prognum, versnum, 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 IPPROTOUDP or IPPROTOTCP.
A return value of zero means that the mapping does not
exist or that the RPC system failured to contact the
remote portmap service. In the latter case, the global
variable rpccreateerr() contains the RPC status.
enum clntstat
pmaprmtcall(addr, prognum, versnum, procnum, inproc, in, outproc, out, tout, portp)
struct sockaddrin *addr;
ulong prognum, versnum, procnum;
char *in, *out;
xdrproct inproc, outproc;
struct timeval tout;
ulong *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 clntcall(). This procedure should be
Page 10 Printed 11/19/92
RPC(3N-BSD) RISC/os Reference Manual RPC(3N-BSD)
used for a ping and nothing else. See also
clntbroadcast().
pmapset(prognum, versnum, protocol, port)
ulong prognum, versnum, protocol;
ushort 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
IPPROTOUDP or IPPROTOTCP. This routine returns one
if it succeeds, zero otherwise. Automatically done by
svcregister().
pmapunset(prognum, versnum)
ulong prognum, 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.
registerrpc(prognum, versnum, procnum, procname, inproc, outproc)
ulong prognum, versnum, procnum;
char *(*procname) () ;
xdrproct inproc, 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); progname should return a
pointer to its static result(s); inproc is used to
decode the parameters while outproc is used to encode
the results. This routine returns zero if the regis-
tration succeeded, -1 otherwise.
Warning: remote procedures registered in this form are
accessed using the UDP/IP transport; see
svcudpcreate() for restrictions.
struct rpccreateerr rpccreateerr;
A global variable whose value is set by any RPC client
creation routine that does not succeed. Use the rou-
tine clntpcreateerror() to print the reason why.
svcdestroy(xprt)
SVCXPRT *
xprt;
A macro that destroys the RPC service transport handle,
Printed 11/19/92 Page 11
RPC(3N-BSD) RISC/os Reference Manual RPC(3N-BSD)
xprt. Destruction usually involves deallocation of
private data structures, including xprt itself. Use of
xprt is undefined after calling this routine.
fdset svcfdset;
A global variable reflecting the RPC service side's
read file descriptor bit mask; it is suitable as a
parameter to the select system call. This is only of
interest if a service implementor does not call
svcrun(), but rather does his own asynchronous event
processing. This variable is read-only (do not pass
its address to select!), yet it may change after calls
to svcgetreqset() or any creation routines.
int svcfds;
Similar to svcfedset(), but limited to 32 descriptors.
This interface is obsoleted by svcfdset().
svcfreeargs(xprt, inproc, in)
SVCXPRT *xprt;
xdrproct 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 svcgetargs(). This routine returns 1 if
the results were successfully freed, and zero other-
wise.
svcgetargs(xprt, inproc, in)
SVCXPRT *xprt;
xdrproct 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 sockaddrin *
svcgetcaller(xprt)
SVCXPRT *xprt;
The approved way of getting the network address of the
caller of a procedure associated with the RPC service
transport handle, xprt.
Page 12 Printed 11/19/92
RPC(3N-BSD) RISC/os Reference Manual RPC(3N-BSD)
svcgetreqset(rdfds)
fdset *rdfds;
This routine is only of interest if a service implemen-
tor does not call svcrun(), but instead implements
custom asynchronous event processing. It is called
when the select 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.
svcgetreq(rdfds)
int rdfds;
Similar to svcgetreqset(), but limited to 32 descrip-
tors. This interface is obsoleted by svcgetreqset().
svcregister(xprt, prognum, versnum, dispatch, protocol)
SVCXPRT *xprt;
ulong prognum, versnum;
void (*dispatch) ();
ulong protocol;
Associates prognum and versnum with the service
dispatch procedure, dispatch. If protocol is zero, the
service is not registered with the portmap service. If
protocol is non-zero, then a mapping of the triple
[prognum,versnum,protocol] to xprt->xpport is esta-
blished with the local portmap service (generally pro-
tocol is zero, IPPROTOUDP or IPPROTOTCP ). The pro-
cedure dispatch has the following form:
dispatch(request, xprt)
struct svcreq *request;
SVCXPRT *xprt;
The svcregister() routine returns one if it succeeds,
and zero otherwise.
svcrun()
This routine never returns. It waits for RPC requests
to arrive, and calls the appropriate service procedure
using svcgetreq() when one arrives. This procedure is
usually waiting for a select() system call to return.
svcsendreply(xprt, outproc, out)
SVCXPRT *xprt;
xdrproct outproc;
char *out;
Called by an RPC service's dispatch routine to send the
Printed 11/19/92 Page 13
RPC(3N-BSD) RISC/os Reference Manual RPC(3N-BSD)
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
svcunregister(prognum, versnum)
ulong prognum, versnum;
Remove all mapping of the double [prognum,versnum] to
dispatch routines, and of the triple
[prognum,versnum,*] to port number.
void
svcerrauth(xprt, why)
SVCXPRT *xprt;
enum authstat why;
Called by a service dispatch routine that refuses to
perform a remote procedure call due to an authentica-
tion error.
void
svcerrdecode(xprt)
SVCXPRT *xprt;
Called by a service dispatch routine that cannot suc-
cessfully decode its parameters. See also
svcgetargs().
void
svcerrnoproc(xprt)
SVCXPRT *xprt;
Called by a service dispatch routine that does not
implement the procedure number that the caller
requests.
void
svcerrnoprog(xprt)
SVCXPRT *xprt;
Called when the desired program is not registered with
the RPC package. Service implementors usually do not
need this routine.
void
svcerrprogvers(xprt)
SVCXPRT *xprt;
Called when the desired version of a program is not
Page 14 Printed 11/19/92
RPC(3N-BSD) RISC/os Reference Manual RPC(3N-BSD)
registered with the RPC package. Service implementors
usually do not need this routine.
void
svcerrsystemerr(xprt)
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.
void
svcerrweakauth(xprt)
SVCXPRT *xprt;
Called by a service dispatch routine that refuses to
perform a remote procedure call due to insufficient
(but correct) authentication parameters. The routine
calls svcerrauth(xprt, AUTHTOOWEAK).
SVCXPRT *
svcrawcreate()
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 clntrawcreate(). This routine
allows simulation of RPC and acquisition of RPC over-
heads (such as round trip times), without any kernel
interference. This routine returns NULL if it fails.
SVCXPRT *
svctcpcreate(sock, sendbufsize, recvbufsize)
int sock;
uint sendbufsize, recvbufsize;
This routine creates a TCP/IP-based RPC service tran-
sport, to which it returns a pointer. The transport is
associated with the socket sock, which may be
RPCANYSOCK, in which case a new socket is created. If
the socket is not bound to a local TCP port, then this
routine binds it to an arbitrary port. Upon completion,
xprt->xpsock is the transport's socket descriptor, nd
xprt->xpport 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.
void
svcfdcreate(fd, sendsize, recvsize)
Printed 11/19/92 Page 15
RPC(3N-BSD) RISC/os Reference Manual RPC(3N-BSD)
int fd;
uint sendsize;
uint recvsize;
Create a service on top of any open desciptor. Typi-
cally, this descriptor is a connected socket for a
stream protocol such as TCP. sendsize and recvsize
indicate sizes for the send and receive buffers. If
they are zero, a reasonable default is chosen.
SVCXPRT *
svcudpcreate(sock)
int sock;
This routine creates a UDP/IP-based RPC service tran-
sport, to which it returns a pointer. The transport is
associated with the socket sock, which may be
RPCANYSOCK , 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 com-
pletion, xprt->xpsock is the transport's socket
descriptor, and xprt->xpport is the transport's port
number. This routine returns NULL if it fails.
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.
user2netname(name, uid, domain)
char *name;
int uid;
char *domain;
Convert from a domain-specific username to an
operating-system independent netname. Returns TRUE if
it succeeds and FALSE if it fails. Inverse of
netname2user().
xdracceptedreply(xdrs, ar)
XDR *xdrs;
struct acceptedreply *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.
xdrauthunixparms(xdrs, aupp)
XDR *xdrs;
struct authunixparms *aupp;
Used for describing UNIX credentials. This routine is
Page 16 Printed 11/19/92
RPC(3N-BSD) RISC/os Reference Manual RPC(3N-BSD)
useful for users who wish to generate these credentials
without using the RPC authentication package.
void
xdrcallhdr(xdrs, chdr)
XDR *xdrs;
struct rpcmsg *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.
xdrcallmsg(xdrs, cmsg)
XDR *xdrs;
struct rpcmsg *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.
xdropaqueauth(xdrs, ap)
XDR *xdrs;
struct opaqueauth *ap;
Used for describing RPC authentication information mes-
sages. This routine is useful for users who wish to
generate RPC-style messages without using the RPC pack-
age.
xdrpmap(xdrs, regs)
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.
xdrpmaplist(xdrs, rp)
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.
xdrrejectedreply(xdrs, rr)
XDR *xdrs;
struct rejectedreply *rr;
Used for describing RPC reply messages. This routine
Printed 11/19/92 Page 17
RPC(3N-BSD) RISC/os Reference Manual RPC(3N-BSD)
is useful for users who wish to generate RPC-style mes-
sages without using the RPC package.
xdrreplymsg(xdrs, rmsg)
XDR *xdrs;
struct rpcmsg *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
xprtregister(xprt)
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
svcfds(). Service implementors usually do not need
this routine.
void
xprtunregister(xprt)
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 svcfds().
Service implementors usually do not need this routine.
SEE ALSO
xdr(3N).
keyserv(1M) in the System Administrator's Reference Manual.
Chapter 19 in the Programmer's Guide.
ORIGIN
Sun Microsystems
NOTE
When these routines are used in a program which is compiled
in -systype svr3, they are not resolved by libc.a. See
intro(3) for more information.
Page 18 Printed 11/19/92