tor/changes/bug31343

  o Minor bugfixes (compilation):
    - Avoid using labs() on time_t, which can cause compilation warnings
      on 64-bit Windows builds.  Fixes bug 31343; bugfix on 0.2.4.4-alpha.

  o Minor bugfixes (clock skew detection):
    - Don't believe clock skew results from NETINFO cells that appear to
      arrive before the VERSIONS cells they are responding to were sent.
      Previously, we would accept them up to 3 minutes "in the past".
      Fixes bug 31343; bugfix on 0.2.4.4-alpha.
Avoid using labs() on time_t in channeltls.c On some windows builds, time_t is 64 bits but long is not. This is causing appveyor builds to fail. Also, one of our uses of labs() on time_t was logically incorrect: it was telling us to accept NETINFO cells up to three minutes _before_ the message they were responding to, which doesn't make sense. This patch adds a time_abs() function that we should eventually move to intmath.h or something. For now, though, it will make merges easier to have it file-local in channeltls.c. Fixes bug 31343; bugfix on 0.2.4.4-alpha. 2019-08-06 17:11:06 +02:00			`o Minor bugfixes (compilation):`
			`- Avoid using labs() on time_t, which can cause compilation warnings`
			`on 64-bit Windows builds. Fixes bug 31343; bugfix on 0.2.4.4-alpha.`

			`o Minor bugfixes (clock skew detection):`
			`- Don't believe clock skew results from NETINFO cells that appear to`
			`arrive before the VERSIONS cells they are responding to were sent.`
			`Previously, we would accept them up to 3 minutes "in the past".`
			`Fixes bug 31343; bugfix on 0.2.4.4-alpha.`