From: Timo Sirainen <timo.sirainen@dovecot.fi>
Date: Wed, 29 Jun 2016 16:22:51 +0000 (+0300)
Subject: dict-sql: Treat NULL value the same as "key not found"
X-Git-Tag: 2.2.25.rc1~16
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=923ed5836f90175e736846f02edfd9c2ee07dc6b;p=thirdparty%2Fdovecot%2Fcore.git

dict-sql: Treat NULL value the same as "key not found"
---

diff --git a/src/lib-dict/dict-sql.c b/src/lib-dict/dict-sql.c
index feb46a67c9..78df8e7dd1 100644
--- a/src/lib-dict/dict-sql.c
+++ b/src/lib-dict/dict-sql.c
@@ -478,6 +478,12 @@ sql_dict_lookup_async_callback(struct sql_result *sql_result,
 	else if (result.ret > 0) {
 		result.value = sql_dict_result_unescape_value(ctx->map,
 			pool_datastack_create(), sql_result);
+		if (result.value == NULL) {
+			/* NULL value returned. we'll treat this as
+			   "not found", which is probably what is usually
+			   wanted. */
+			result.ret = 0;
+		}
 	}
 	ctx->callback(&result, ctx->context);