The rusers bug.

NIIBE Yutaka (gniibe@mri.co.jp)
Sat, 9 Mar 1996 15:03:56 +0900

Per Persson writes:
> I read an old bug report about rusers but there were no patch
> available at that time, I'm just wondering if someone has fixed this
> or if someone knows what I should do to get a working rusers (or what
> I should fix if it isn't rusers itself which is broken).
[...]
> Any ideas? I need to get this to work to make another program work
> which uses rpc.rusersd and crashes with the same trace...

It's not kernel problem. There are two problem, rusers and libc.

I'm using rusers of NetKit-B-0.06 and libc-5.3.5.
Here is a patch for rusers.

I'll send you another patch for libc later.

-- 
NIIBE Yutaka


=================
--- rusers/rnusers_xdr.c~
+++ rusers/rnusers_xdr.c
@@ -14,22 +14,18 @@
 	XDR *xdrs;
 	struct ru_utmp *objp;
 {
-	char *ptr;
 	int size;
 
-	ptr  = objp->ut_line;
 	size = sizeof(objp->ut_line);
-	if (!xdr_bytes(xdrs, &ptr, &size, size)) {
+	if (!xdr_bytes(xdrs, &objp->ut_line, &size, size)) {
 		return (FALSE);
 	}
-	ptr  = objp->ut_name;
 	size = sizeof(objp->ut_line);
-	if (!xdr_bytes(xdrs, &ptr, &size, size)) {
+	if (!xdr_bytes(xdrs, &objp->ut_name, &size, size)) {
 		return (FALSE);
 	}
-	ptr  = objp->ut_host;
 	size = sizeof(objp->ut_host);
-	if (!xdr_bytes(xdrs, &ptr, &size, size)) {
+	if (!xdr_bytes(xdrs, &objp->ut_host, &size, size)) {
 		return (FALSE);
 	}
 	if (!xdr_long(xdrs, &objp->ut_time)) {
=================