From: Aki Tuomi <aki.tuomi@open-xchange.com>
Date: Mon, 17 Feb 2025 16:10:09 +0000 (+0200)
Subject: lib-imap-client: Send only CR LF if SASL output is empty
X-Git-Tag: 2.4.1~125
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=5d8175be87dc59f7c22a399a0b254bef973bee89;p=thirdparty%2Fdovecot%2Fcore.git

lib-imap-client: Send only CR LF if SASL output is empty
---

diff --git a/src/lib-imap-client/imapc-connection.c b/src/lib-imap-client/imapc-connection.c
index 7fb295fa1b..470dcfa587 100644
--- a/src/lib-imap-client/imapc-connection.c
+++ b/src/lib-imap-client/imapc-connection.c
@@ -953,6 +953,9 @@ imapc_connection_authenticate_cb(const struct imapc_command_reply *reply,
 	} else if (dsasl_client_output(conn->sasl_client, &sasl_output,
 				       &sasl_output_len, &error) < 0) {
 		imapc_auth_failed(conn, reply, error);
+	} else if (sasl_output_len == 0) {
+		o_stream_nsend_str(conn->output, "\r\n");
+		return;
 	} else {
 		string_t *imap_output =
 			t_str_new(MAX_BASE64_ENCODED_SIZE(sasl_output_len)+2);