The old socket code did something like
int fd = socket(…);
if (fd == -1) {
error handling
}
if (fd < 100) {
int newfd = fcntl(fd, F_DUPFD, 100);
if (newfd == -1) {
error handling
> On Sep 13, 2022, at 3:35 PM, Graham Clinch wrote:
>
> I suspect nrpe-ng is closing stdin before launching nslookup.
>
>
> With mac homebrew's build of bind 9.18.6 and a bit of shell redirection to
> close stdin, I get:
>
> ---
> $ /opt/homebrew/bin/nslookup -version
> nslookup 9.18.6
>
>
On 13/09/2022 21:09, Casey Deccio wrote:
After rerunning nrpe-ng with the following:
sudo strace --read=4 -F /usr/bin/python3 /usr/sbin/nrpe-ng --debug -f --config
/etc/nagios/nrpe-ng.cfg
I see the following in the debug output on Host B:
[pid 1390861] read(4, "nslookup: ./src/unix/core.c:570
I am trying to track down a bug. I think it is in nslookup (which is why I'm
asking here), but there are so many pieces required to reproduce it that I
cannot tell for sure. Let me explain my setup:
All hosts are running Debian bullseye. None of the problems happened *until* I
upgraded from
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