Consolidate raw socket acquisition.

tcpip.cc

@@ -87,31 +87,6 @@ extern NmapOps o;
 
 static PacketCounter PktCt;
 
-/* Create a raw socket and do things that always apply to raw sockets:
-    * Set SO_BROADCAST.
-    * Set IP_HDRINCL.
-    * Bind to an interface with SO_BINDTODEVICE (if o.device is set).
-   The socket is created with address family AF_INET, but may be usable for
-   AF_INET6, depending on the operating system. */
-int nmap_raw_socket() {
-  int rawsd;
-  int one = 1;
-
-  rawsd = socket(AF_INET, SOCK_RAW, IPPROTO_RAW);
-  if (rawsd < 0)
-    return rawsd;
-  if (setsockopt (rawsd, SOL_SOCKET, SO_BROADCAST, (const char *) &one, sizeof(int)) != 0) {
-    error("Failed to secure socket broadcasting permission");
-    perror("setsockopt");
-  }
-#ifndef WIN32
-  sethdrinclude(rawsd);
-#endif
-  socket_bindtodevice(rawsd, o.device);
-
-  return rawsd;
-}
-
 /* Fill buf (up to buflen -- truncate if necessary but always
    terminate) with a short representation of the packet stats.
    Returns buf.  Aborts if there is a problem. */