[OpenSIPS-Devel] [OpenSIPS/opensips] 37eab9: Extend the test for re-using pre-compiled regexp.

[Bogdan-Andrei Iancu]

  Branch: refs/heads/2.3
  Home:   https://github.com/OpenSIPS/opensips
  Commit: 37eab9a8c2dd19a17f2617057ca2014e9ffee263
      https://github.com/OpenSIPS/opensips/commit/37eab9a8c2dd19a17f2617057ca2014e9ffee263
  Author: Bogdan-Andrei Iancu <bogdan at opensips.org>
  Date:   2018-02-28 (Wed, 28 Feb 2018)

  Changed paths:
    M transformations.c

  Log Message:
  -----------
  Extend the test for re-using pre-compiled regexp.

A failure in compiling a regexp may lead to an inconsistent state, where the buffer is correctly populated, but the regexp pointer is NULL -> on next usage, the code will attempt to directly used (as the regexp buffer matches) the NULL pointer and crash.
Reported by Ben Newlin <Ben.Newlin at genesys.com>

(cherry picked from commit b77c1823ead3b61875e9f0dae1d57c9a6455135b)