Replace setsockopt(IP_PKTINFO) and setsockopt(IPV6_RECVPKTINFO) calls by

net/tools/quic/quic_socket_utils.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/tools/quic/quic_socket_utils.h"
 
 #include <errno.h>
 #include <netinet/in.h>
 #include <string.h>
 #include <sys/socket.h>
@@ skipping 52 matching lines @@
         return true;
       }
     }
   }
   return false;
 }
 
 // static
 int QuicSocketUtils::SetGetAddressInfo(int fd, int address_family) {
   int get_local_ip = 1;
-  if (address_family == AF_INET) {
-    return setsockopt(fd, IPPROTO_IP, IP_PKTINFO,
+  int rc = setsockopt(fd, IPPROTO_IP, IP_PKTINFO,
                       &get_local_ip, sizeof(get_local_ip));
-  } else {
-    return setsockopt(fd, IPPROTO_IPV6, IPV6_RECVPKTINFO,
-                      &get_local_ip, sizeof(get_local_ip));
+  if (rc == 0 && address_family == AF_INET6) {
+    rc = setsockopt(fd, IPPROTO_IPV6, IPV6_RECVPKTINFO,
+                    &get_local_ip, sizeof(get_local_ip));
   }
+  return rc;
 }
 
 // static
 bool QuicSocketUtils::SetSendBufferSize(int fd, size_t size) {
   if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &size, sizeof(size)) != 0) {
     LOG(ERROR) << "Failed to set socket send size";
     return false;
   }
   return true;
 }
@@ skipping 126 matching lines @@
   int rc = sendmsg(fd, &hdr, 0);
   if (rc >= 0) {
     return WriteResult(WRITE_STATUS_OK, rc);
   }
   return WriteResult((errno == EAGAIN || errno == EWOULDBLOCK) ?
       WRITE_STATUS_BLOCKED : WRITE_STATUS_ERROR, errno);
 }
 
 }  // namespace tools
 }  // namespace net