summaryrefslogtreecommitdiff
path: root/vendor/golang.org/x/net/ipv4/control_bsd.go
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/golang.org/x/net/ipv4/control_bsd.go')
-rw-r--r--vendor/golang.org/x/net/ipv4/control_bsd.go44
1 files changed, 44 insertions, 0 deletions
diff --git a/vendor/golang.org/x/net/ipv4/control_bsd.go b/vendor/golang.org/x/net/ipv4/control_bsd.go
new file mode 100644
index 0000000..b7385df
--- /dev/null
+++ b/vendor/golang.org/x/net/ipv4/control_bsd.go
@@ -0,0 +1,44 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build aix || darwin || dragonfly || freebsd || netbsd || openbsd
+// +build aix darwin dragonfly freebsd netbsd openbsd
+
+package ipv4
+
+import (
+ "net"
+ "syscall"
+ "unsafe"
+
+ "golang.org/x/net/internal/iana"
+ "golang.org/x/net/internal/socket"
+
+ "golang.org/x/sys/unix"
+)
+
+func marshalDst(b []byte, cm *ControlMessage) []byte {
+ m := socket.ControlMessage(b)
+ m.MarshalHeader(iana.ProtocolIP, unix.IP_RECVDSTADDR, net.IPv4len)
+ return m.Next(net.IPv4len)
+}
+
+func parseDst(cm *ControlMessage, b []byte) {
+ if len(cm.Dst) < net.IPv4len {
+ cm.Dst = make(net.IP, net.IPv4len)
+ }
+ copy(cm.Dst, b[:net.IPv4len])
+}
+
+func marshalInterface(b []byte, cm *ControlMessage) []byte {
+ m := socket.ControlMessage(b)
+ m.MarshalHeader(iana.ProtocolIP, sockoptReceiveInterface, syscall.SizeofSockaddrDatalink)
+ return m.Next(syscall.SizeofSockaddrDatalink)
+}
+
+func parseInterface(cm *ControlMessage, b []byte) {
+ var sadl syscall.SockaddrDatalink
+ copy((*[unsafe.Sizeof(sadl)]byte)(unsafe.Pointer(&sadl))[:], b)
+ cm.IfIndex = int(sadl.Index)
+}