valid_zoneinfo_dir? never work in OpenBSD and FreeBSD (and Solaris)

[nanaya]

This method do its validation by testing existence of zone.tab and iso3166.tab files in same directory but both {Open,Free}BSD put iso3166.tab in different directory (/usr/share/misc). It's not even called iso3166.tab but iso3166 in FreeBSD.

In Solaris (10, 11, OpenIndiana), the files are in /usr/share/lib/zoneinfo/tab/country.tab (iso3166.tab) and /usr/share/lib/zoneinfo/tab/zone_sun.tab (zone.tab). The files look the same as original zone data though it might be just Solaris being Solaris.

[philr]

Thank you for the report.

I'll take a look into this and try and change the zoneinfo detection to support BSD and Solaris for the next release.

[braincomb]

I can confirm. I am on FreeBSD and have just stumbled upon this problem, I had to run ln -s /use/share/misc/iso3166 /usr/share/zoneinfo/iso3166.tab to fix this.

[philr]

An analysis of zoneinfo data in FreeBSD, NetBSD, OpenBSD, Solaris and OpenIndiana:

FreeBSD

• zoneinfo directory
  • /usr/share/zoneinfo
• iso3166.tab
  • Outside of the zoneinfo directory: /usr/share/misc/iso3166
  • Uses a four column format instead of the usual two column format. The additional columns are the alpha-3 and numeric-3 codes.
• zone.tab
  • Inside the zoneinfo directory.
  • Standard format.

NetBSD

• zoneinfo directory
  • /usr/share/zoneinfo
• iso3166.tab
  • Inside the zoneinfo directory.
  • Standard format.
• zone.tab
  • Inside the zoneinfo directory.
  • Standard format.

OpenBSD

• zoneinfo directory
  • /usr/share/zoneinfo
• iso3166.tab
  • Outside of the zoneinfo directory: /usr/share/misc/iso3166.tab.
  • Uses the regular tz database format (two columns).
• zone.tab
  • Inside the zoneinfo directory.
  • Standard format.

Solaris and OpenIndiana

• zoneinfo directory:
  • /usr/share/lib/zoneinfo
  • Includes a src sub-directory containing the source time zone data files from the tzdata distribution.
  • Incldues a tab sub-directory containing modified versions of the tab files from the tzdata distribution.
• iso3166.tab
  • Inside the zoneinfo directory.
  • Named tab/country.tab.
  • Uses the standard tz database format (two columns).
• zone.tab
  • Inside the zoneinfo directory.
  • Named tab/zone_sun.tab.
  • Uses a non-standard five column format, adding an alternate time zone identifier column before the comment column (set to - if there is no alternate time zone).
  • Includes a regional time zone section using lower case country codes. The third column in this section is a continent identifier instead of a timezone identifier.