misc/117966: fdread aborts with EPERM
Norbert Koch
nkoch at gmx.de
Sat Nov 10 14:30:01 PST 2007
>Number: 117966
>Category: misc
>Synopsis: fdread aborts with EPERM
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sat Nov 10 22:30:01 UTC 2007
>Closed-Date:
>Last-Modified:
>Originator: Norbert Koch
>Release: 6.3-PRERELEASE
>Organization:
>Environment:
FreeBSD xp2800.koch 6.3-PRERELEASE FreeBSD 6.3-PRERELEASE #0: Sun Nov 4 19:09:23 CET 2007 root at xp2800.koch:/usr/obj/usr/src/sys/XP2800 i386
>Description:
fdread returns EPERM when trying ioctl(FD_SOPTS).
The fdc device driver restricts
this ioctl to be only allowed when
the device is opened for writing.
When I modify fdread.c to not open(...,RDONLY)
but RDWR, fdread works.
So this may solve the problem. But I am not
sure if this is the ``clean'' solution.
For me it looks like the device driver
should be changed.
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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