From 6836779a5627de08a9ba13778b176d0e304d2bd3 Mon Sep 17 00:00:00 2001
From: Johannes Kimmel <fff@bareminimum.eu>
Date: Tue, 7 Mar 2023 01:10:18 +0100
Subject: [PATCH] capture: disable without cgo

---
 capture/capture.go |  2 ++
 capture/netgo.go   | 16 ++++++++++++++++
 2 files changed, 18 insertions(+)
 create mode 100644 capture/netgo.go

diff --git a/capture/capture.go b/capture/capture.go
index edb1c91..b722bb8 100644
--- a/capture/capture.go
+++ b/capture/capture.go
@@ -1,3 +1,5 @@
+//go:build cgo
+
 package capture
 
 import (
diff --git a/capture/netgo.go b/capture/netgo.go
new file mode 100644
index 0000000..541fda5
--- /dev/null
+++ b/capture/netgo.go
@@ -0,0 +1,16 @@
+//go:build !cgo
+
+package capture
+
+import "fmt"
+
+import "inet.af/netaddr"
+
+type nullReaderFromCloser interface {
+	ReadFrom(b []byte) (body []byte, src netaddr.IP, ifindex int, err error)
+	Close() error
+}
+
+func FromInterface(string) (nullReaderFromCloser, error) {
+	return nil, fmt.Errorf("packet capture disabled")
+}