From: Timo Sirainen <tss@iki.fi>
Date: Thu, 23 Apr 2015 18:26:50 +0000 (+0300)
Subject: auth: Don't assert-crash if master user login attempts to use empty login username.
X-Git-Tag: 2.2.17.rc1~155
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=51d7baa054bf6e833ef2b2fc198ee4ab0974ebb7;p=thirdparty%2Fdovecot%2Fcore.git

auth: Don't assert-crash if master user login attempts to use empty login username.
---

diff --git a/src/auth/auth-request.c b/src/auth/auth-request.c
index 8b00df27a0..c0bc424062 100644
--- a/src/auth/auth-request.c
+++ b/src/auth/auth-request.c
@@ -1274,7 +1274,10 @@ bool auth_request_set_login_username(struct auth_request *request,
 {
 	struct auth_passdb *master_passdb;
 
-        i_assert(*username != '\0');
+	if (username[0] == '\0') {
+		*error_r = "Master user login attempted to use empty login username";
+		return FALSE;
+	}
 
 	if (strcmp(username, request->user) == 0) {
 		/* The usernames are the same, we don't really wish to log