[dovecot/pigeonhole] b5d79d: plugins: sieve-extprograms: Fix segfault occurring...

[GitHub]

  Branch: refs/heads/master-0.5
  Home:   https://github.com/dovecot/pigeonhole
  Commit: b5d79d243aa23b50db106ff7f0e365f2bd0bd397
      https://github.com/dovecot/pigeonhole/commit/b5d79d243aa23b50db106ff7f0e365f2bd0bd397
  Author: Stephan Bosch <stephan.bosch at dovecot.fi>
  Date:   2017-12-29 (Fri, 29 Dec 2017)

  Changed paths:
    M src/plugins/sieve-extprograms/sieve-extprograms-common.c

  Log Message:
  -----------
  plugins: sieve-extprograms: Fix segfault occurring when used in IMAPSieve context.

This was caused by recent lib-smtp changes.
There is no envelope in IMAPSieve context, so the rcpt parameters are NULL, causing the segfault.