From: Timo Sirainen <timo.sirainen@dovecot.fi>
Date: Mon, 10 Oct 2016 11:20:16 +0000 (+0300)
Subject: lib-program-client: Avoid busy-looping while waiting for ostream to have space.
X-Git-Tag: 2.2.26~212
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a3217af3ccf62eaee263d72aa0fe6dcf60884e20;p=thirdparty%2Fdovecot%2Fcore.git

lib-program-client: Avoid busy-looping while waiting for ostream to have space.
---

diff --git a/src/lib-program-client/program-client.c b/src/lib-program-client/program-client.c
index 00c48265e1..2f2fc5794f 100644
--- a/src/lib-program-client/program-client.c
+++ b/src/lib-program-client/program-client.c
@@ -312,6 +312,8 @@ void program_client_program_input(struct program_client *pclient)
 					program_client_fail(pclient, PROGRAM_CLIENT_ERROR_IO);
 					return;
 				}
+				if (sent == 0)
+					return;
 				size = (size_t)sent;
 			}