From: Stephan Bosch <stephan.bosch@open-xchange.com>
Date: Tue, 3 Sep 2019 10:22:16 +0000 (+0200)
Subject: lib: base64 - Fix base64_get_full_encoded_size() for size 0.
X-Git-Tag: 2.3.8~109
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=82f885992477d410806775960f60f35f41864179;p=thirdparty%2Fdovecot%2Fcore.git

lib: base64 - Fix base64_get_full_encoded_size() for size 0.
---

diff --git a/src/lib/base64.c b/src/lib/base64.c
index 7fe51a8098..26e87cde1d 100644
--- a/src/lib/base64.c
+++ b/src/lib/base64.c
@@ -16,6 +16,9 @@ off_t base64_get_full_encoded_size(struct base64_encoder *enc, off_t src_size)
 	off_t out_size;
 	off_t newlines;
 
+	if (src_size == 0)
+		return 0;
+
 	/* calculate size of encoded data */
 	out_size = MAX_BASE64_ENCODED_SIZE(src_size);
 	if (no_padding) {