From: Aki Tuomi <aki.tuomi@dovecot.fi>
Date: Thu, 24 May 2018 17:14:08 +0000 (+0300)
Subject: lib-mail: message_header_decode_encoded - ensure num is QCOUNT
X-Git-Tag: 2.3.11.2~435
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=83f71dc3f13cca35c37e0353006ae566221c4e29;p=thirdparty%2Fdovecot%2Fcore.git

lib-mail: message_header_decode_encoded - ensure num is QCOUNT

Satisifies static analyzers
---

diff --git a/src/lib-mail/message-header-decode.c b/src/lib-mail/message-header-decode.c
index 100560e93e..18f6ca2585 100644
--- a/src/lib-mail/message-header-decode.c
+++ b/src/lib-mail/message-header-decode.c
@@ -24,11 +24,14 @@ message_header_decode_encoded(const unsigned char *data, size_t size,
 				break;
 		}
 	}
+
 	if (i+1 >= size || data[i+1] != '=') {
 		/* invalid block */
 		return 0;
 	}
 
+	i_assert(num == QCOUNT);
+
 	buffer_append(decodebuf, data, start_pos[0]);
 	buffer_append_c(decodebuf, '\0');
 	*charsetlen_r = decodebuf->used;