json: append timezone information to ISO 8601 date

While this is not strictly needed for ISO 8601, this is helpful since
otherwise, the receiver can't assume anything about the
timezone.

This uses a GNU extension but as ulogd is quite Linux-specific, this
shouldn't be a problem. The POSIX variables (tzname and daylight) are
quite difficult to use because daylight handling is incomplete (daylight
don't say if DST is now in effect, it just says it is sometimes in
effect).

A timezone offset is used instead of a timezone since it is usually
easier to parse (strptime in glibc is not able to parse a timezone name)
and don't require an up-to-date TZ database.

Signed-off-by: Vincent Bernat <Vincent.Bernat@exoscale.ch>

0 files changed, 0 insertions, 0 deletions