From: Timo Sirainen <timo.sirainen@dovecot.fi>
Date: Fri, 28 Oct 2016 08:54:27 +0000 (+0300)
Subject: auth: Fix crash when exporting passdb fields to auth-worker that have NULL values
X-Git-Tag: 2.2.27~259
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=9b59f54e72f0b70456552dc71ad7afd7773278ff;p=thirdparty%2Fdovecot%2Fcore.git

auth: Fix crash when exporting passdb fields to auth-worker that have NULL values
---

diff --git a/src/auth/auth-request.c b/src/auth/auth-request.c
index 3a06f08f9d..fdc9f0b8b0 100644
--- a/src/auth/auth-request.c
+++ b/src/auth/auth-request.c
@@ -344,8 +344,11 @@ void auth_request_export(struct auth_request *request, string_t *dest)
 		const ARRAY_TYPE(auth_field) *fields = auth_fields_export(request->userdb_reply);
 		const struct auth_field *field;
 		array_foreach(fields, field) {
-			str_printfa(dest, "\tuserdb_%s=", field->key);
-			str_append_tabescaped(dest, field->value);
+			str_printfa(dest, "\tuserdb_%s", field->key);
+			if (field->value != NULL) {
+				str_append_c(dest, '=');
+				str_append_tabescaped(dest, field->value);
+			}
 		}
 	}
 }