ray@gibbs.physics.purdue.edu (Ray Moody) (07/08/89)
Index: sys/vfs_lookup.c 4.3BSD + ISI4.0D
Version:
This bug is in Integrated Solutions Incorporated file system.
It does not appear in standard 4.3 BSD.
Description:
Remote symbolic links not always followed properly. Even when
lookuppn is called with followlink == NO_FOLLOW, it is necessary to
follow all symbolic links except the last one. In reality, lookuppn
stops translating paths when it encounters its first remote symbolic
link if followlink is NO_FOLLOW.
Repeat-By:
Try your equivalent of running "ls -F /maxwell/gibbs" on
Gibbs. Gibbs and Maxwell are machines on our network. /maxwell and
/gibbs are the obvious symbolic links.
Fix:
RCS file: RCS/vfs_lookup.c,v
retrieving revision 1.1
retrieving revision 1.1.1.1
diff -c -r1.1 -r1.1.1.1
*** /tmp/,RCSt1025851 Fri Jul 7 14:21:04 1989
--- /tmp/,RCSt2025851 Fri Jul 7 14:21:05 1989
***************
*** 437,443
if (error = SdGetlink(u.u_tcurrpid, pnp->pn_path, lpnp->pn_path,
&len, &follow, &cindex, &clen))
break;
! if ((len == 0) || (follow != FOLLOW_LINK)) {
error = -1;
break;
}
--- 437,443 -----
if (error = SdGetlink(u.u_tcurrpid, pnp->pn_path, lpnp->pn_path,
&len, &follow, &cindex, &clen))
break;
! if (len == 0 || follow != FOLLOW_LINK && cindex + clen == pnp->pn_pathlen) {
error = -1;
break;
}