support: Preserve errno in write_message, TEST_VERIFY and other checks
commit1a51e46e4a87e1cd9528ac5e5656011636e4086b
authorFlorian Weimer <fweimer@redhat.com>
Fri, 12 Jan 2018 07:18:30 +0000 (12 08:18 +0100)
committerFlorian Weimer <fweimer@redhat.com>
Fri, 12 Jan 2018 12:35:01 +0000 (12 13:35 +0100)
tree0120ca1d101beec6d0cf0532cdd4ab31aa95e211
parent63b52889c35b367cf20896442203bbe5d123058c
support: Preserve errno in write_message, TEST_VERIFY and other checks

These facilities could clobber errno, which makes it difficult to write
certain checks because a specific order has to be used.
ChangeLog
support/check.c
support/support_test_compare_failure.c
support/support_test_verify_impl.c
support/write_message.c