From: Timo Sirainen <timo.sirainen@dovecot.fi>
Date: Tue, 28 Jun 2016 18:59:26 +0000 (+0300)
Subject: lib: Added assert to iostream-temp
X-Git-Tag: 2.3.0.rc1~3411
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=61d57efe9dee0dd38b0f726ef85e3c710cb655fc;p=thirdparty%2Fdovecot%2Fcore.git

lib: Added assert to iostream-temp

Input stream isn't expected to shrink here. Potentially this could be
changed to an error instead.
---

diff --git a/src/lib/iostream-temp.c b/src/lib/iostream-temp.c
index ddb0befbbd..1b3583d5c0 100644
--- a/src/lib/iostream-temp.c
+++ b/src/lib/iostream-temp.c
@@ -184,6 +184,7 @@ o_stream_temp_dup_istream(struct temp_ostream *outstream,
 			return o_stream_temp_dup_cancel(outstream, res_r);
 		return FALSE;
 	}
+	i_assert(instream->v_offset <= in_size);
 
 	if (outstream->dupstream == NULL) {
 		outstream->dupstream = instream;