From 8bea7e700f5e73d9a92583f71647c9788defb843 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= Date: Wed, 2 Oct 2019 10:29:41 +0200 Subject: sd-dhcp-client: do not crash if sd_dhcp_client_send_release() is called with no lease Again, a public function should not crash if called at an inopportune moment. Also, make sure we don't call the function if we have no lease. --- src/libsystemd-network/sd-dhcp-client.c | 1 + 1 file changed, 1 insertion(+) (limited to 'src/libsystemd-network') diff --git a/src/libsystemd-network/sd-dhcp-client.c b/src/libsystemd-network/sd-dhcp-client.c index 3f386db2f5..02f3569edc 100644 --- a/src/libsystemd-network/sd-dhcp-client.c +++ b/src/libsystemd-network/sd-dhcp-client.c @@ -1895,6 +1895,7 @@ int sd_dhcp_client_start(sd_dhcp_client *client) { int sd_dhcp_client_send_release(sd_dhcp_client *client) { assert_return(client, -EINVAL); assert_return(client->state != DHCP_STATE_STOPPED, -ESTALE); + assert_return(client->lease, -EUNATCH); _cleanup_free_ DHCPPacket *release = NULL; size_t optoffset, optlen; -- cgit v1.2.1