hunk.code_window:             } else {
                   console.error('Missing response body for ' + methodName); // eslint-disable-line no-console
                   successCallback('', res);
               }
           }
       }
       // General Routes Section
  
hunk.labels: keep keep keep add keep keep keep keep keep
hunk.after_edit:             this.handleSuccess(res);
  
hunk.file_path: webapp/client/client.jsx
hunk.type: add
file: // Copyright 2013 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.
  
  // +build darwin
  
  package ipv6
  
  import (
  	"syscall"
  	"unsafe"
  
  	"golang.org/x/net/internal/iana"
  )
  
  func marshal2292HopLimit(b []byte, cm *ControlMessage) []byte {
  	m := (*syscall.Cmsghdr)(unsafe.Pointer(&b[0]))
  	m.Level = iana.ProtocolIPv6
  	m.Type = sysIPV6_2292HOPLIMIT
  	m.SetLen(syscall.CmsgLen(4))
  	if cm != nil {
  		data := b[syscall.CmsgLen(0):]
  		nativeEndian.PutUint32(data[:4], uint32(cm.HopLimit))
  	}
  	return b[syscall.CmsgSpace(4):]
  }
  
  func marshal2292PacketInfo(b []byte, cm *ControlMessage) []byte {
  	m := (*syscall.Cmsghdr)(unsafe.Pointer(&b[0]))
  	m.Level = iana.ProtocolIPv6
  	m.Type = sysIPV6_2292PKTINFO
  	m.SetLen(syscall.CmsgLen(sizeofInet6Pktinfo))
  	if cm != nil {
  		pi := (*inet6Pktinfo)(unsafe.Pointer(&b[syscall.CmsgLen(0)]))
  		if ip := cm.Src.To16(); ip != nil && ip.To4() == nil {
  			copy(pi.Addr[:], ip)
  		}
  		if cm.IfIndex > 0 {
  			pi.setIfindex(cm.IfIndex)
  		}
  	}
  	return b[syscall.CmsgSpace(sizeofInet6Pktinfo):]
  }
  
  func marshal2292NextHop(b []byte, cm *ControlMessage) []byte {
  	m := (*syscall.Cmsghdr)(unsafe.Pointer(&b[0]))
  	m.Level = iana.ProtocolIPv6
  	m.Type = sysIPV6_2292NEXTHOP
  	m.SetLen(syscall.CmsgLen(sizeofSockaddrInet6))
  	if cm != nil {
  		sa := (*sockaddrInet6)(unsafe.Pointer(&b[syscall.CmsgLen(0)]))
  		sa.setSockaddr(cm.NextHop, cm.IfIndex)
  	}
  	return b[syscall.CmsgSpace(sizeofSockaddrInet6):]
  }
  