URL: https://github.com/freeipa/freeipa/pull/5288 Author: ptrNine Title: #5288: ipa-kdb: handle dates up to 2106-01-01 00:00 Action: opened

PR body: """ krb5 uses negative part of `krb5_timestamp` to store time values after 2038 https://k5wiki.kerberos.org/wiki/Projects/Timestamps_after_2038 In other words, krb5 uses `krb5_timestamp` (signed int) with unsigned arithmetic for expanding of the timestamp time range.

This commit: - adds some helper functions for working with `krb5_timestamp` as unsigned (actually copied from the link above) - replaces operations with `krb5_timestamp`'s by these new functions - sets `IPAPWD_END_OF_TIME` to `4291747200L` (1 Jan 2106, 00:00 GMT) """

To pull the PR as Git branch: git remote add ghfreeipa https://github.com/freeipa/freeipa git fetch ghfreeipa pull/5288/head:pr5288 git checkout pr5288