From: Timo Sirainen <timo.sirainen@open-xchange.com>
Date: Fri, 24 Sep 2021 15:59:29 +0000 (+0300)
Subject: lib: o_stream_copy_error_from_parent() - Assert-crash if source stream_errno is 0
X-Git-Tag: 2.3.18~293
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=628933455216a859ecb4d7ba5c0dbb0a8abbd293;p=thirdparty%2Fdovecot%2Fcore.git

lib: o_stream_copy_error_from_parent() - Assert-crash if source stream_errno is 0

This can help debug situations where error is missing.
---

diff --git a/src/lib/ostream.c b/src/lib/ostream.c
index eab68937a4..2f9c49dd9d 100644
--- a/src/lib/ostream.c
+++ b/src/lib/ostream.c
@@ -571,6 +571,8 @@ void o_stream_copy_error_from_parent(struct ostream_private *_stream)
 	struct ostream *src = _stream->parent;
 	struct ostream *dest = &_stream->ostream;
 
+	i_assert(src->stream_errno != 0);
+
 	dest->stream_errno = src->stream_errno;
 	dest->overflow = src->overflow;
 	if (src->closed)