tree 5ca66b9670ffdd69d1c27ca0f0684350d85eb489
parent 9dd0c484767c9fa3852b23c790d3d5e84e510beb
author Maciej Żenczykowski <maze@google.com> 1587456942 -0700
committer Pablo Neira Ayuso <pablo@netfilter.org> 1589198904 +0200

iptables: flush stdout after every verbose log.

Ensures that each logged line is flushed to stdout after it's
written, and not held in any buffer.

Places to modify found via:
  git grep -C5 'fputs[(]buffer, stdout[)];'

On Android iptables-restore -v is run as netd daemon's child process
and fed actions via pipe.  '#PING' is used to verify the child
is still responsive, and thus needs to be unbuffered.

Luckily if you're running iptables-restore in verbose mode you
probably either don't care about performance or - like Android
- actually need this.

Test: builds, required on Android for ip6?tables-restore netd
  subprocess health monitoring.
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>