From: Marco Bettini <marco.bettini@open-xchange.com>
Date: Fri, 27 Jan 2023 14:03:22 +0000 (+0000)
Subject: lib-storage: mail_user_get_alt_usernames() - Skip empty string values
X-Git-Tag: 2.4.0~3006
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e4e26d2cea7938777cbd82ecca89bfa0c5590200;p=thirdparty%2Fdovecot%2Fcore.git

lib-storage: mail_user_get_alt_usernames() - Skip empty string values
---

diff --git a/src/lib-storage/mail-user.c b/src/lib-storage/mail-user.c
index 06944a2156..e61a66b668 100644
--- a/src/lib-storage/mail-user.c
+++ b/src/lib-storage/mail-user.c
@@ -693,7 +693,7 @@ const char *const *mail_user_get_alt_usernames(struct mail_user *user)
 	for (unsigned int i = 0; user->userdb_fields[i] != NULL; i++) {
 		const char *key, *value;
 		if (t_split_key_value_eq(user->userdb_fields[i], &key, &value) &&
-		    str_begins_with(key, "user_")) {
+		    *value != '\0' && str_begins_with(key, "user_")) {
 			array_append(&alt_usernames, &key, 1);
 			array_append(&alt_usernames, &value, 1);
 		}