Re: tcpdump and timezone mismatch (STABLE 14 vs STABLE 13)

On 9/14/2023 4:49 PM, Dag-Erling Smørgrav wrote:
> mike tancsa<mike@sentex.net>  writes:
> In main and stable/14, it enters capability mode immediately before the
> first attempt to read /etc/localtime, which fails:
>
>     745 tcpdump  0.069967829 CALL  cap_enter
>     745 tcpdump  0.070015646 RET   cap_enter 0
>     745 tcpdump  0.070139522 CALL  fstatat(AT_FDCWD,0x1c377723d38e,0x1c3773430d00
> ,0)
>     745 tcpdump  0.070196299 NAMI  "/etc/localtime"
>     745 tcpdump  0.070240578 RET   fstatat -1 errno 94 Not permitted in capability mode
>     745 tcpdump  0.070487574 CALL  fstatat(AT_FDCWD,0x1c377723d38e,0x1c3773430cd0,0)
>     745 tcpdump  0.070550458 NAMI  "/etc/localtime"
>     745 tcpdump  0.070593003 RET   fstatat -1 errno 94 Not permitted in capability mode
>
> The simplest workaround is to call tzset(3) before entering capability
> mode.

Thanks!

     Should open a PR about this ?

     ---Mike