Commit 969129b7 authored by Youness Alaoui's avatar Youness Alaoui Committed by Olivier Crête
Browse files

agent: Fix infinite loop when the peer closes a TCP connection remotely

parent c122e5ad
......@@ -3243,6 +3243,19 @@ agent_recv_message_unlocked (
* return an error to make the socket fail/closed
retval = -1;
} else {
gint flags = G_SOCKET_MSG_PEEK;
/* If available bytes are 0, but the socket is still considered
* connected, then either we're just trying to see if there's more
* data available or the peer closed the connection.
* The only way to know is to do a read, so we do here a peek and
* check the return value, if it's 0, it means the peer has closed
* the connection, so we must return an error instead of WOULD_BLOCK
if (g_socket_receive_message (nicesock->fileno, NULL,
NULL, 0, NULL, NULL, &flags, NULL, NULL) == 0)
retval = -1;
} else if (agent->rfc4571_expecting_length == 0) {
if ((gsize) available >= sizeof(guint16)) {
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