From: Petr Menšík <pemensik@redhat.com>
Date: Fri, 4 Aug 2023 16:45:25 +0000 (+0200)
Subject: Do not crash on dhcpcd test run (#231)
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c8ee2f024644daf7920614158fcb80e3db6ab774;p=thirdparty%2Fdhcpcd.git

Do not crash on dhcpcd test run (#231)

Check if state->bpf is allocated before attempting to write there.
---

diff --git a/src/dhcp.c b/src/dhcp.c
index c7154634..f7680760 100644
--- a/src/dhcp.c
+++ b/src/dhcp.c
@@ -3336,7 +3336,8 @@ dhcp_handledhcp(struct interface *ifp, struct bootp *bootp, size_t bootp_len,
 			state->reason = "TEST";
 			script_runreason(ifp, state->reason);
 			eloop_exit(ifp->ctx->eloop, EXIT_SUCCESS);
-			state->bpf->bpf_flags |= BPF_EOF;
+			if (state->bpf)
+				state->bpf->bpf_flags |= BPF_EOF;
 			return;
 		}
 		eloop_timeout_delete(ifp->ctx->eloop, send_discover, ifp);