Fixed, thanks!
On Wed, Nov 1, 2017 at 3:19 AM, Jack Schmidt wrote:
> When I tried to use inetd as an unprivileged user on linux (4.9.x, x86_64,
> glibc or musl), I get:
>
> inetd: can't set groups: Operation not permitted
>
> I believe the problem is line 1486, where it compares the desired uid to 0,
> rather than to the current uid, to decide whether to set groups.
>
> For example:
>
> printf '127.0.0.1:3030 stream tcp nowait jack ./echo.sh' > inetd.conf
> printf '#!/bin/sh\necho ok\nsleep 1' > echo.sh
> chmod 755 echo.sh
> ./busybox inetd -e -f inetd.conf &
> nc 127.0.0.1 3030
>
> With the patch, it echoes "ok".
>
> Without the patch, inetd gives an error:
>
> inetd: can't set groups: Operation not permitted
>
>
> Of course, to placate line 1486 one could use:
>
> printf '127.0.0.1:3030 stream tcp nowait root ./echo.sh' > inetd.conf
>
> but this results in the earlier error:
>
> inetd: non-root must run services as himself
>
>
>
>
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