Sun RPC part 8 of 10
sources-request at genrad.UUCP
sources-request at genrad.UUCP
Wed Apr 17 02:38:52 AEST 1985
From: blyon at sun (Bob Lyon)
----------------- cut here --------------------
# run this script through "sh" to extract files
echo x - pmap_clnt.c
sed 's/^X//' >pmap_clnt.c <<'!Funky!Stuff!'
/*
* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
* unrestricted use provided that this legend is included on all tape
* media and as a part of the software program in whole or part. Users
* may copy or modify Sun RPC without charge, but are not authorized
* to license or distribute it to anyone else except as part of a product or
* program developed by the user.
*
* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
*
* Sun RPC is provided with no support and without any obligation on the
* part of Sun Microsystems, Inc. to assist in its use, correction,
* modification or enhancement.
*
* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
* OR ANY PART THEREOF.
*
* In no event will Sun Microsystems, Inc. be liable for any lost revenue
* or profits or other special, indirect and consequential damages, even if
* Sun has been advised of the possibility of such damages.
*
* Sun Microsystems, Inc.
* 2550 Garcia Avenue
* Mountain View, California 94043
*/
#ifndef lint
static char sccsid[] = "@(#)pmap_clnt.c 1.3 85/02/08 Copyr 1984 Sun Micro";
#endif
/*
* pmap_clnt.c
* Client interface to pmap rpc service.
*
* Copyright (C) 1984, Sun Microsystems, Inc.
*/
#include "types.h"
#include <netinet/in.h>
#include "xdr.h"
#include "auth.h"
#include "clnt.h"
#include "rpc_msg.h"
#include "pmap_prot.h"
#include "pmap_clnt.h"
#include <sys/socket.h>
#include <sys/time.h>
#include <stdio.h>
#include <net/if.h>
#include <sys/ioctl.h>
#include <arpa/inet.h>
#define NAMELEN 255
static struct timeval timeout = { 5, 0 };
static struct timeval tottimeout = { 60, 0 };
static struct sockaddr_in myaddress;
void clnt_perror();
/*
* Set a mapping between program,version and port.
* Calls the pmap service remotely to do the mapping.
*/
bool_t
pmap_set(program, version, protocol, port)
u_long program;
u_long version;
u_long protocol;
u_short port;
{
struct sockaddr_in myaddress;
int socket = -1;
register CLIENT *client;
struct pmap parms;
bool_t rslt;
get_myaddress(&myaddress);
client = clntudp_create(&myaddress, PMAPPROG, PMAPVERS,
timeout, &socket);
if (client == (CLIENT *)NULL)
return (FALSE);
parms.pm_prog = program;
parms.pm_vers = version;
parms.pm_prot = protocol;
parms.pm_port = port;
if (CLNT_CALL(client, PMAPPROC_SET, xdr_pmap, &parms, xdr_bool, &rslt,
tottimeout) != RPC_SUCCESS) {
clnt_perror(client, "Cannot register service");
return (FALSE);
}
CLNT_DESTROY(client);
(void)close(socket);
return (rslt);
}
/*
* Remove the mapping between program,version and port.
* Calls the pmap service remotely to do the un-mapping.
*/
bool_t
pmap_unset(program, version)
u_long program;
u_long version;
{
struct sockaddr_in myaddress;
int socket = -1;
register CLIENT *client;
struct pmap parms;
bool_t rslt;
get_myaddress(&myaddress);
client = clntudp_create(&myaddress, PMAPPROG, PMAPVERS,
timeout, &socket);
if (client == (CLIENT *)NULL)
return (FALSE);
parms.pm_prog = program;
parms.pm_vers = version;
parms.pm_port = parms.pm_prot = 0;
CLNT_CALL(client, PMAPPROC_UNSET, xdr_pmap, &parms, xdr_bool, &rslt,
tottimeout);
CLNT_DESTROY(client);
(void)close(socket);
return (rslt);
}
/*
* don't use gethostbyname, which would invoke yellow pages
*/
get_myaddress(addr)
struct sockaddr_in *addr;
{
int s;
char buf[BUFSIZ];
struct ifconf ifc;
struct ifreq ifreq, *ifr;
int len;
if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
perror("get_myaddress: socket");
exit(1);
}
ifc.ifc_len = sizeof (buf);
ifc.ifc_buf = buf;
if (ioctl(s, SIOCGIFCONF, (char *)&ifc) < 0) {
perror("get_myaddress: ioctl (get interface configuration)");
exit(1);
}
ifr = ifc.ifc_req;
for (len = ifc.ifc_len; len; len -= sizeof ifreq) {
ifreq = *ifr;
if (ioctl(s, SIOCGIFFLAGS, (char *)&ifreq) < 0) {
perror("get_myaddress: ioctl");
exit(1);
}
if (ifreq.ifr_flags & IFF_UP) {
*addr = *((struct sockaddr_in *)&ifr->ifr_addr);
addr->sin_port = htons(PMAPPORT);
break;
}
ifr++;
}
close(s);
}
!Funky!Stuff!
echo x - pmap_clnt.h
sed 's/^X//' >pmap_clnt.h <<'!Funky!Stuff!'
/*
* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
* unrestricted use provided that this legend is included on all tape
* media and as a part of the software program in whole or part. Users
* may copy or modify Sun RPC without charge, but are not authorized
* to license or distribute it to anyone else except as part of a product or
* program developed by the user.
*
* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
*
* Sun RPC is provided with no support and without any obligation on the
* part of Sun Microsystems, Inc. to assist in its use, correction,
* modification or enhancement.
*
* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
* OR ANY PART THEREOF.
*
* In no event will Sun Microsystems, Inc. be liable for any lost revenue
* or profits or other special, indirect and consequential damages, even if
* Sun has been advised of the possibility of such damages.
*
* Sun Microsystems, Inc.
* 2550 Garcia Avenue
* Mountain View, California 94043
*/
/* @(#)pmap_clnt.h 1.1 84/12/20 SMI */
/*
* portmap_clnt.h
* Supplies C routines to get to portmap services.
*
* Copyright (C) 1984, Sun Microsystems, Inc.
*/
/*
* Usage:
* success = pmap_set(program, version, protocol, port);
* success = pmap_unset(program, version);
* port = pmap_getport(address, program, version, protocol);
* head = pmap_getmaps(address);
* clnt_stat = pmap_rmtcall(address, program, version, procedure,
* xdrargs, argsp, xdrres, resp, tout, port_ptr)
* (works for udp only.)
* clnt_stat = clnt_broadcast(program, version, procedure,
* xdrargs, argsp, xdrres, resp, eachresult)
* (like pmap_rmtcall, except the call is broadcasted to all
* locally connected nets. For each valid response received,
* the procedure eachresult is called. Its form is:
* done = eachresult(resp, raddr)
* bool_t done;
* caddr_t resp;
* struct sockaddr_in raddr;
* where resp points to the results of the call and raddr is the
* address if the responder to the broadcast.
*/
extern bool_t pmap_set();
extern bool_t pmap_unset();
extern u_short pmap_getport();
extern struct pmaplist *pmap_getmaps();
enum clnt_stat pmap_rmtcall();
enum clnt_stat clnt_broadcast();
!Funky!Stuff!
echo x - pmap_getmaps.c
sed 's/^X//' >pmap_getmaps.c <<'!Funky!Stuff!'
/*
* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
* unrestricted use provided that this legend is included on all tape
* media and as a part of the software program in whole or part. Users
* may copy or modify Sun RPC without charge, but are not authorized
* to license or distribute it to anyone else except as part of a product or
* program developed by the user.
*
* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
*
* Sun RPC is provided with no support and without any obligation on the
* part of Sun Microsystems, Inc. to assist in its use, correction,
* modification or enhancement.
*
* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
* OR ANY PART THEREOF.
*
* In no event will Sun Microsystems, Inc. be liable for any lost revenue
* or profits or other special, indirect and consequential damages, even if
* Sun has been advised of the possibility of such damages.
*
* Sun Microsystems, Inc.
* 2550 Garcia Avenue
* Mountain View, California 94043
*/
#ifndef lint
static char sccsid[] = "@(#)pmap_getmaps.c 1.2 85/02/08 Copyr 1984 Sun Micro";
#endif
/*
* pmap_getmap.c
* Client interface to pmap rpc service.
* contains pmap_getmaps, which is only tcp service involved
*
* Copyright (C) 1984, Sun Microsystems, Inc.
*/
#include "types.h"
#include <netinet/in.h>
#include "xdr.h"
#include "auth.h"
#include "clnt.h"
#include "rpc_msg.h"
#include "pmap_prot.h"
#include "pmap_clnt.h"
#include <sys/socket.h>
#include <sys/time.h>
#include <netdb.h>
#include <stdio.h>
#include <errno.h>
#include <net/if.h>
#include <sys/ioctl.h>
#define NAMELEN 255
#define MAX_BROADCAST_SIZE 1400
extern int errno;
static struct timeval timeout = { 3, 0 };
static struct timeval tottimeout = { 24, 0 };
static struct sockaddr_in myaddress;
/*
* Get a copy of the current port maps.
* Calls the pmap service remotely to do get the maps.
*/
struct pmaplist *
pmap_getmaps(address)
struct sockaddr_in *address;
{
struct pmaplist *head = (struct pmaplist *)NULL;
int socket = -1;
struct timeval minutetimeout;
register CLIENT *client;
minutetimeout.tv_sec = 60;
minutetimeout.tv_usec = 0;
address->sin_port = htons(PMAPPORT);
client = clnttcp_create(address, PMAPPROG,
PMAPVERS, &socket, 50, 500);
if (client != (CLIENT *)NULL) {
if (CLNT_CALL(client, PMAPPROC_DUMP, xdr_void, NULL, xdr_pmaplist,
&head, minutetimeout) != RPC_SUCCESS) {
clnt_perror(client, "pmap_getmaps rpc problem");
}
CLNT_DESTROY(client);
}
(void)close(socket);
address->sin_port = 0;
return (head);
}
!Funky!Stuff!
echo x - pmap_getport.c
sed 's/^X//' >pmap_getport.c <<'!Funky!Stuff!'
/*
* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
* unrestricted use provided that this legend is included on all tape
* media and as a part of the software program in whole or part. Users
* may copy or modify Sun RPC without charge, but are not authorized
* to license or distribute it to anyone else except as part of a product or
* program developed by the user.
*
* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
*
* Sun RPC is provided with no support and without any obligation on the
* part of Sun Microsystems, Inc. to assist in its use, correction,
* modification or enhancement.
*
* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
* OR ANY PART THEREOF.
*
* In no event will Sun Microsystems, Inc. be liable for any lost revenue
* or profits or other special, indirect and consequential damages, even if
* Sun has been advised of the possibility of such damages.
*
* Sun Microsystems, Inc.
* 2550 Garcia Avenue
* Mountain View, California 94043
*/
#ifndef lint
static char sccsid[] = "@(#)pmap_getport.c 1.1 85/02/08 Copyr 1984 Sun Micro";
#endif
/*
* pmap_getport.c
* Client interface to pmap rpc service.
*
* Copyright (C) 1984, Sun Microsystems, Inc.
*/
#include "types.h"
#include <netinet/in.h>
#include "xdr.h"
#include "auth.h"
#include "clnt.h"
#include "rpc_msg.h"
#include "pmap_prot.h"
#include "pmap_clnt.h"
#include <sys/socket.h>
#include <sys/time.h>
#include <stdio.h>
#include <net/if.h>
#include <sys/ioctl.h>
#include <arpa/inet.h>
#define NAMELEN 255
static struct timeval timeout = { 5, 0 };
static struct timeval tottimeout = { 60, 0 };
/*
* Find the mapped port for program,version.
* Calls the pmap service remotely to do the lookup.
* Returns 0 if no map exists.
*/
u_short
pmap_getport(address, program, version, protocol)
struct sockaddr_in *address;
u_long program;
u_long version;
u_long protocol;
{
u_short port = 0;
int socket = -1;
register CLIENT *client;
struct pmap parms;
address->sin_port = htons(PMAPPORT);
client = clntudp_create(address, PMAPPROG,
PMAPVERS, timeout, &socket);
if (client != (CLIENT *)NULL) {
parms.pm_prog = program;
parms.pm_vers = version;
parms.pm_prot = protocol;
parms.pm_port = 0; /* not needed or used */
if (CLNT_CALL(client, PMAPPROC_GETPORT, xdr_pmap, &parms,
xdr_u_short, &port, tottimeout) != RPC_SUCCESS){
rpc_createerr.cf_stat = RPC_PMAPFAILURE;
clnt_geterr(client, &rpc_createerr.cf_error);
} else if (port == 0) {
rpc_createerr.cf_stat = RPC_PROGNOTREGISTERED;
}
CLNT_DESTROY(client);
}
(void)close(socket);
address->sin_port = 0;
return (port);
}
!Funky!Stuff!
echo x - pmap_prot.c
sed 's/^X//' >pmap_prot.c <<'!Funky!Stuff!'
/*
* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
* unrestricted use provided that this legend is included on all tape
* media and as a part of the software program in whole or part. Users
* may copy or modify Sun RPC without charge, but are not authorized
* to license or distribute it to anyone else except as part of a product or
* program developed by the user.
*
* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
*
* Sun RPC is provided with no support and without any obligation on the
* part of Sun Microsystems, Inc. to assist in its use, correction,
* modification or enhancement.
*
* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
* OR ANY PART THEREOF.
*
* In no event will Sun Microsystems, Inc. be liable for any lost revenue
* or profits or other special, indirect and consequential damages, even if
* Sun has been advised of the possibility of such damages.
*
* Sun Microsystems, Inc.
* 2550 Garcia Avenue
* Mountain View, California 94043
*/
#ifndef lint
static char sccsid[] = "@(#)pmap_prot.c 1.2 85/02/08 Copyr 1984 Sun Micro";
#endif
/*
* pmap_prot.c
* Protocol for the local binder service, or pmap.
*
* Copyright (C) 1984, Sun Microsystems, Inc.
*/
#include "types.h"
#include "xdr.h"
#include "pmap_prot.h"
#define NULL ((struct pmaplist *)0)
bool_t
xdr_pmap(xdrs, regs)
XDR *xdrs;
struct pmap *regs;
{
if (xdr_u_long(xdrs, ®s->pm_prog) &&
xdr_u_long(xdrs, ®s->pm_vers) &&
xdr_u_long(xdrs, ®s->pm_prot))
return (xdr_u_long(xdrs, ®s->pm_port));
return (FALSE);
}
/*
* What is going on with linked lists? (!)
* First recall the link list declaration from pmap_prot.h:
*
* struct pmaplist {
* struct pmap pml_map;
* struct pmaplist *pml_map;
* };
*
* Compare that declaration with a corresponding xdr declaration that
* is (a) pointer-less, and (b) recursive:
*
* typedef union switch (bool_t) {
*
* case TRUE: struct {
* struct pmap;
* pmaplist_t foo;
* };
*
* case FALSE: struct {};
* } pmaplist_t;
*
* Notice that the xdr declaration has no nxt pointer while
* the C declaration has no bool_t variable. The bool_t can be
* interpreted as ``more data follows me''; if FALSE then nothing
* follows this bool_t; if TRUE then the bool_t is followed by
* an actual struct pmap, and then (recursively) by the
* xdr union, pamplist_t.
*
* This could be implemented via the xdr_union primitive, though this
* would cause a one recursive call per element in the list. Rather than do
* that we can ``unwind'' the recursion
* into a while loop and do the union arms in-place.
*
* The head of the list is what the C programmer wishes to past around
* the net, yet is the data that the pointer points to which is interesting;
* this sounds like a job for xdr_reference!
*/
bool_t
xdr_pmaplist(xdrs, rp)
register XDR *xdrs;
register struct pmaplist **rp;
{
/*
* more_elements is pre-computed in case the direction is
* XDR_ENCODE or XDR_FREE. more_elements is overwritten by
* xdr_bool when the direction is XDR_DECODE.
*/
bool_t more_elements;
register int freeing = (xdrs->x_op == XDR_FREE);
register struct pmaplist **next;
while (TRUE) {
more_elements = (bool_t)(*rp != NULL);
if (! xdr_bool(xdrs, &more_elements))
return (FALSE);
if (! more_elements)
return (TRUE); /* we are done */
/*
* the unfortunate side effect of non-recursion is that in
* the case of freeing we must remember the next object
* before we free the current object ...
*/
if (freeing)
next = &((*rp)->pml_next);
if (! xdr_reference(xdrs, (caddr_t *)rp,
(u_int)sizeof(struct pmaplist), xdr_pmap))
return (FALSE);
rp = (freeing) ? next : &((*rp)->pml_next);
}
}
!Funky!Stuff!
echo x - pmap_prot.h
sed 's/^X//' >pmap_prot.h <<'!Funky!Stuff!'
/*
* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
* unrestricted use provided that this legend is included on all tape
* media and as a part of the software program in whole or part. Users
* may copy or modify Sun RPC without charge, but are not authorized
* to license or distribute it to anyone else except as part of a product or
* program developed by the user.
*
* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
*
* Sun RPC is provided with no support and without any obligation on the
* part of Sun Microsystems, Inc. to assist in its use, correction,
* modification or enhancement.
*
* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
* OR ANY PART THEREOF.
*
* In no event will Sun Microsystems, Inc. be liable for any lost revenue
* or profits or other special, indirect and consequential damages, even if
* Sun has been advised of the possibility of such damages.
*
* Sun Microsystems, Inc.
* 2550 Garcia Avenue
* Mountain View, California 94043
*/
/* @(#)pmap_prot.h 1.1 84/12/20 SMI */
/*
* pmap_prot.h
* Protocol for the local binder service, or pmap.
*
* Copyright (C) 1984, Sun Microsystems, Inc.
*
* The following procedures are supported by the protocol:
*
* PMAPPROC_NULL() returns ()
* takes nothing, returns nothing
*
* PMAPPROC_SET(struct pmap) returns (bool_t)
* TRUE is success, FALSE is failure. Registers the tuple
* [prog, vers, prot, port].
*
* PMAPPROC_UNSET(struct pmap) returns (bool_t)
* TRUE is success, FALSE is failure. Un-registers pair
* [prog, vers]. prot and port are ignored.
*
* PMAPPROC_GETPORT(struct pmap) returns (long unsigned).
* 0 is failure. Otherwise returns the port number where the pair
* [prog, vers] is registered. It may lie!
*
* PMAPPROC_DUMP() RETURNS (struct pmaplist *)
*
* PMAPPROC_CALLIT(unsigned, unsigned, unsigned, string<>)
* RETURNS (port, string<>);
* usage: encapsulatedresults = PMAPPROC_CALLIT(prog, vers, proc, encapsulatedargs);
* Calls the procedure on the local machine. If it is not registered,
* this procedure is quite; ie it does not return error information!!!
* This procedure only is supported on rpc/udp and calls via
* rpc/udp. This routine only passes null authentication parameters.
* This file has no interface to xdr routines for PMAPPROC_CALLIT.
*
* The service supports remote procedure calls on udp/ip or tcp/ip socket 111.
*/
#define PMAPPORT ((u_short)111)
#define PMAPPROG ((u_long)100000)
#define PMAPVERS ((u_long)2)
#define PMAPVERS_PROTO ((u_long)2)
#define PMAPVERS_ORIG ((u_long)1)
#define PMAPPROC_NULL ((u_long)0)
#define PMAPPROC_SET ((u_long)1)
#define PMAPPROC_UNSET ((u_long)2)
#define PMAPPROC_GETPORT ((u_long)3)
#define PMAPPROC_DUMP ((u_long)4)
#define PMAPPROC_CALLIT ((u_long)5)
struct pmap {
long unsigned pm_prog;
long unsigned pm_vers;
long unsigned pm_prot;
long unsigned pm_port;
};
extern bool_t xdr_pmap();
struct pmaplist {
struct pmap pml_map;
struct pmaplist *pml_next;
};
extern bool_t xdr_pmaplist();
!Funky!Stuff!
echo x - pmap_rmt.c
sed 's/^X//' >pmap_rmt.c <<'!Funky!Stuff!'
/*
* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
* unrestricted use provided that this legend is included on all tape
* media and as a part of the software program in whole or part. Users
* may copy or modify Sun RPC without charge, but are not authorized
* to license or distribute it to anyone else except as part of a product or
* program developed by the user.
*
* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
*
* Sun RPC is provided with no support and without any obligation on the
* part of Sun Microsystems, Inc. to assist in its use, correction,
* modification or enhancement.
*
* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
* OR ANY PART THEREOF.
*
* In no event will Sun Microsystems, Inc. be liable for any lost revenue
* or profits or other special, indirect and consequential damages, even if
* Sun has been advised of the possibility of such damages.
*
* Sun Microsystems, Inc.
* 2550 Garcia Avenue
* Mountain View, California 94043
*/
#ifndef lint
static char sccsid[] = "@(#)pmap_rmt.c 1.4 85/03/17 Copyr 1984 Sun Micro";
#endif
/*
* pmap_rmt.c
* Client interface to pmap rpc service.
* remote call and broadcast service
*
* Copyright (C) 1984, Sun Microsystems, Inc.
*/
#include "types.h"
#include <netinet/in.h>
#include "xdr.h"
#include "auth.h"
#include "clnt.h"
#include "rpc_msg.h"
#include "pmap_prot.h"
#include "pmap_clnt.h"
#include <sys/socket.h>
#include <sys/time.h>
#include <stdio.h>
#include <errno.h>
#include <net/if.h>
#include <sys/ioctl.h>
#include <arpa/inet.h>
#define MAX_BROADCAST_SIZE 1400
extern int errno;
static struct timeval timeout = { 3, 0 };
/*
* Structures and XDR routines for parameters to and replys from
* the pmapper remote-call-service.
*/
struct rmtcallargs {
u_long prog, vers, proc, arglen;
caddr_t args_ptr;
xdrproc_t xdr_args;
};
static bool_t xdr_rmtcall_args();
struct rmtcallres {
u_long *port_ptr;
u_long resultslen;
caddr_t results_ptr;
xdrproc_t xdr_results;
};
static bool_t xdr_rmtcallres();
/*
* pmapper remote-call-service interface.
* This routine is used to call the pmapper remote call service
* which will look up a service program in the port maps, and then
* remotely call that routine with the given parameters. This allows
* programs to do a lookup and call in one step.
*/
enum clnt_stat
pmap_rmtcall(addr, prog, vers, proc, xdrargs, argsp, xdrres, resp, tout, port_ptr)
struct sockaddr_in *addr;
u_long prog, vers, proc;
xdrproc_t xdrargs, xdrres;
caddr_t argsp, resp;
struct timeval tout;
u_long *port_ptr;
{
int socket = -1;
register CLIENT *client;
struct rmtcallargs a;
struct rmtcallres r;
enum clnt_stat stat;
addr->sin_port = htons(PMAPPORT);
client = clntudp_create(addr, PMAPPROG, PMAPVERS, timeout, &socket);
if (client != (CLIENT *)NULL) {
a.prog = prog;
a.vers = vers;
a.proc = proc;
a.args_ptr = argsp;
a.xdr_args = xdrargs;
r.port_ptr = port_ptr;
r.results_ptr = resp;
r.xdr_results = xdrres;
stat = CLNT_CALL(client, PMAPPROC_CALLIT, xdr_rmtcall_args, &a,
xdr_rmtcallres, &r, tout);
CLNT_DESTROY(client);
} else {
stat = RPC_FAILED;
}
(void)close(socket);
addr->sin_port = 0;
return (stat);
}
/*
* XDR remote call arguments
* written for XDR_ENCODE direction only
*/
static bool_t
xdr_rmtcall_args(xdrs, cap)
register XDR *xdrs;
register struct rmtcallargs *cap;
{
u_int lenposition, argposition, position;
if (xdr_u_long(xdrs, &(cap->prog)) &&
xdr_u_long(xdrs, &(cap->vers)) &&
xdr_u_long(xdrs, &(cap->proc))) {
lenposition = XDR_GETPOS(xdrs);
if (! xdr_u_long(xdrs, &(cap->arglen)))
return (FALSE);
argposition = XDR_GETPOS(xdrs);
if (! (*(cap->xdr_args))(xdrs, cap->args_ptr))
return (FALSE);
position = XDR_GETPOS(xdrs);
cap->arglen = (u_long)position - (u_long)argposition;
XDR_SETPOS(xdrs, lenposition);
if (! xdr_u_long(xdrs, &(cap->arglen)))
return (FALSE);
XDR_SETPOS(xdrs, position);
return (TRUE);
}
return (FALSE);
}
/*
* XDR remote call results
* written for XDR_DECODE direction only
*/
static bool_t
xdr_rmtcallres(xdrs, crp)
register XDR *xdrs;
register struct rmtcallres *crp;
{
if (xdr_reference(xdrs, &crp->port_ptr, sizeof (u_long), xdr_u_long) &&
xdr_u_long(xdrs, &crp->resultslen))
return ((*(crp->xdr_results))(xdrs, crp->results_ptr));
return (FALSE);
}
/*
* The following is kludged-up support for simple rpc broadcasts.
* Someday a large, complicated system will replace these trivial
* routines which only support udp/ip .
*/
static int
getbroadcastnets(addrs, sock, buf)
struct in_addr *addrs;
int sock; /* any valid socket will do */
char *buf; /* why allocxate more when we can use existing... */
{
struct ifconf ifc;
struct ifreq ifreq, *ifr;
struct sockaddr_in *sin;
int n, i;
ifc.ifc_len = MAX_BROADCAST_SIZE;
ifc.ifc_buf = buf;
if (ioctl(sock, SIOCGIFCONF, (char *)&ifc) < 0) {
perror("broadcast: ioctl (get interface configuration)");
return (0);
}
ifr = ifc.ifc_req;
for (i = 0, n = ifc.ifc_len/sizeof (struct ifreq); n > 0; n--, ifr++) {
ifreq = *ifr;
if (ioctl(sock, SIOCGIFFLAGS, (char *)&ifreq) < 0) {
perror("broadcast: ioctl (get interface flags)");
continue;
}
if (ifreq.ifr_flags & IFF_BROADCAST) {
sin = (struct sockaddr_in *)&ifr->ifr_addr;
addrs[i++] = inet_makeaddr(inet_netof
(sin->sin_addr.s_addr), INADDR_ANY);
}
}
return (i);
}
typedef bool_t (*resultproc_t)();
enum clnt_stat
clnt_broadcast(prog, vers, proc, xargs, argsp, xresults, resultsp, eachresult)
u_long prog; /* program number */
u_long vers; /* version number */
u_long proc; /* procedure number */
xdrproc_t xargs; /* xdr routine for args */
caddr_t argsp; /* pointer to args */
xdrproc_t xresults; /* xdr routine for results */
caddr_t resultsp; /* pointer to results */
resultproc_t eachresult; /* call with each result obtained */
{
enum clnt_stat stat;
AUTH *unix_auth = authunix_create_default();
XDR xdr_stream;
register XDR *xdrs = &xdr_stream;
int outlen, inlen, fromlen, readfds, nets;
register int sock, mask, i;
bool_t done = FALSE;
register u_long xid;
u_long port;
struct in_addr addrs[20];
struct sockaddr_in baddr, raddr; /* broadcast and response addresses */
struct rmtcallargs a;
struct rmtcallres r;
struct rpc_msg msg;
struct timeval t;
char outbuf[MAX_BROADCAST_SIZE], inbuf[MAX_BROADCAST_SIZE];
/*
* initialization: create a socket, a broadcast address, and
* preserialize the arguments into a send buffer.
*/
if ((sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
perror("Cannot create socket for broadcast rpc");
stat = RPC_CANTSEND;
goto done_broad;
}
mask = (1 << sock);
nets = getbroadcastnets(addrs, sock, inbuf);
bzero(&baddr, sizeof (baddr));
baddr.sin_family = AF_INET;
baddr.sin_port = htons(PMAPPORT);
baddr.sin_addr.S_un.S_addr = htonl(INADDR_ANY);
(void)gettimeofday(&t, (struct timezone *)0);
msg.rm_xid = xid = getpid() ^ t.tv_sec ^ t.tv_usec;
t.tv_usec = 0;
msg.rm_direction = CALL;
msg.rm_call.cb_rpcvers = RPC_MSG_VERSION;
msg.rm_call.cb_prog = PMAPPROG;
msg.rm_call.cb_vers = PMAPVERS;
msg.rm_call.cb_proc = PMAPPROC_CALLIT;
msg.rm_call.cb_cred = unix_auth->ah_cred;
msg.rm_call.cb_verf = unix_auth->ah_verf;
a.prog = prog;
a.vers = vers;
a.proc = proc;
a.xdr_args = xargs;
a.args_ptr = argsp;
r.port_ptr = &port;
r.xdr_results = xresults;
r.results_ptr = resultsp;
xdrmem_create(xdrs, outbuf, MAX_BROADCAST_SIZE, XDR_ENCODE);
if ((! xdr_callmsg(xdrs, &msg)) || (! xdr_rmtcall_args(xdrs, &a))) {
stat = RPC_CANTENCODEARGS;
goto done_broad;
}
outlen = (int)xdr_getpos(xdrs);
xdr_destroy(xdrs);
/*
* Basic loop: broadcast a packet and wait a while for response(s).
* The response timeout grows larger per iteration.
*/
for (t.tv_sec = 2; t.tv_sec <= 6; t.tv_sec += 2) {
for (i = 0; i < nets; i++) {
baddr.sin_addr = addrs[i];
if (sendto(sock, outbuf, outlen, 0,
(struct socketaddr *)&baddr,
sizeof (struct sockaddr)) != outlen) {
perror("Cannot send broadcast packet");
stat = RPC_CANTSEND;
goto done_broad;
}
}
recv_again:
msg.acpted_rply.ar_verf = _null_auth;
msg.acpted_rply.ar_results.where = (caddr_t)&r;
msg.acpted_rply.ar_results.proc = xdr_rmtcallres;
readfds = mask;
switch (select(32, &readfds, (int *)NULL, (int *)NULL, &t)) {
case 0: /* timed out */
stat = RPC_TIMEDOUT;
continue;
case -1: /* some kind of error */
if (errno == EINTR)
goto recv_again;
perror("Broadcast select problem");
stat = RPC_CANTRECV;
goto done_broad;
} /* end of select results switch */
if ((readfds & mask) == 0)
goto recv_again;
try_again:
fromlen = sizeof(struct sockaddr);
inlen = recvfrom(sock, inbuf, MAX_BROADCAST_SIZE, 0,
(struct sockaddr *)&raddr, &fromlen);
if (inlen < 0) {
if (errno == EINTR)
goto try_again;
perror("Cannot receive reply to broadcast");
stat = RPC_CANTRECV;
goto done_broad;
}
if (inlen < sizeof(u_long))
goto recv_again;
/*
* see if reply transaction id matches sent id.
* If so, decode the results.
*/
xdrmem_create(xdrs, inbuf, inlen, XDR_DECODE);
if (xdr_replymsg(xdrs, &msg)) {
if ((msg.rm_xid == xid) &&
(msg.rm_reply.rp_stat == MSG_ACCEPTED) &&
(msg.acpted_rply.ar_stat == SUCCESS)) {
raddr.sin_port = htons((u_short)port);
done = (*eachresult)(resultsp, &raddr);
}
/* otherwise, we just ignore the errors ... */
} else {
/* some kind of deserialization problem ... */
if (msg.rm_xid == xid)
fprintf(stderr, "Broadcast deserialization problem");
/* otherwise, just random garbage */
}
xdrs->x_op = XDR_FREE;
msg.acpted_rply.ar_results.proc = xdr_void;
(void)xdr_replymsg(xdrs, &msg);
(void)(*xresults)(xdrs, resultsp);
xdr_destroy(xdrs);
if (done) {
stat = RPC_SUCCESS;
goto done_broad;
} else {
goto recv_again;
}
}
done_broad:
(void)close(sock);
AUTH_DESTROY(unix_auth);
return (stat);
}
!Funky!Stuff!
exit
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