zfs/lib/libzutil
наб 10b575d04c lib/: set O_CLOEXEC on all fds
As found by
  git grep -E '(open|setmntent|pipe2?)\(' |
    grep -vE '((zfs|zpool)_|fd|dl|lzc_re|pidfile_|g_)open\('

FreeBSD's pidfile_open() says nothing about the flags of the files it
opens, but we can't do anything about it anyway; the implementation does
open all files with O_CLOEXEC

Consider this output with zpool.d/media appended with
"pid=$$; (ls -l /proc/$pid/fd > /dev/tty)":
  $ /sbin/zpool iostat -vc media
  lrwx------ 0 -> /dev/pts/0
  l-wx------ 1 -> 'pipe:[3278500]'
  l-wx------ 2 -> /dev/null
  lrwx------ 3 -> /dev/zfs
  lr-x------ 4 -> /proc/31895/mounts
  lrwx------ 5 -> /dev/zfs
  lr-x------ 10 -> /usr/lib/zfs-linux/zpool.d/media
vs
  $ ./zpool iostat -vc vendor,upath,iostat,media
  lrwx------ 0 -> /dev/pts/0
  l-wx------ 1 -> 'pipe:[3279887]'
  l-wx------ 2 -> /dev/null
  lr-x------ 10 -> /usr/lib/zfs-linux/zpool.d/media

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #11866
2021-04-11 15:45:59 -07:00
..
os lib/: set O_CLOEXEC on all fds 2021-04-11 15:45:59 -07:00
Makefile.am cppcheck: integrete cppcheck 2021-01-26 16:12:26 -08:00
zutil_device_path.c OpenZFS restructuring - libzutil 2019-10-03 10:20:44 -07:00
zutil_import.c lib/: set O_CLOEXEC on all fds 2021-04-11 15:45:59 -07:00
zutil_import.h OpenZFS restructuring - libzutil 2019-10-03 10:20:44 -07:00
zutil_nicenum.c libzutil: zfs_isnumber(): return false if input empty 2021-04-06 12:25:53 -07:00
zutil_pool.c Add libzutil for libzfs or libzpool consumers 2018-11-05 11:22:33 -08:00