diff options
author | Ulrich Drepper <drepper@redhat.com> | 2008-07-26 06:32:13 +0400 |
---|---|---|
committer | Al Viro <viro@zeniv.linux.org.uk> | 2008-07-27 04:53:39 +0400 |
commit | 3c333937ee3be114b181c4861188cfe8f6a59697 (patch) | |
tree | fda3bb122bb4c9c180ef41e5d142ac315dc7a576 /fs/namei.c | |
parent | 58ec42b061bf5dad8fa0370a19966cfd96eaf80c (diff) | |
download | linux-3c333937ee3be114b181c4861188cfe8f6a59697.tar.xz |
[PATCH] dup3 fix
Al Viro notice one cornercase that the new dup3() code. The dup2()
function, as a special case, handles dup-ing to the same file
descriptor. In this case the current dup3() code does nothing at
all. I.e., it ingnores the flags parameter. This shouldn't happen,
the close-on-exec flag should be set if requested.
In case the O_CLOEXEC bit in the flags parameter is not set the
dup3() function should behave in this respect identical to dup2().
This means dup3(fd, fd, 0) should not actively reset the c-o-e
flag.
The patch below implements this minor change.
[AV: credits to Artur Grabowski for bringing that up as potential subtle point
in dup2() behaviour]
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/namei.c')
0 files changed, 0 insertions, 0 deletions