Call nsp_setdevice after nsp_new in our Nsock pools.

The exceptions are the calls in ncat/ncat_connect.c and
nping/EchoServer.cc. Ncat doesn't have an option for the interface, and
I think Nping's -e option is only meant to apply to probes, not to the
echo server listener.

FPEngine.cc

@@ -158,6 +158,7 @@ void FPNetworkControl::init(const char *ifname, devtype iftype) {
   /* Create a new nsock pool */
   if ((this->nsp = nsp_new(NULL)) == NULL)
     fatal("Unable to obtain an Nsock pool");
+  nsp_setdevice(nsp, o.device);
 
   /* Set Trace level */
   if (o.packetTrace()) {

nmap_dns.cc

@@ -1210,6 +1210,7 @@ static void nmap_mass_rdns_core(Target **targets, int num_targets) {
 
   if ((dnspool = nsp_new(NULL)) == NULL)
     fatal("Unable to create nsock pool in %s()", __func__);
+  nsp_setdevice(dnspool, o.device);
 
   if ((lasttrace = o.packetTrace()))
     nsp_settrace(dnspool, NULL, NSOCK_TRACE_LEVEL, o.getStartTime());

nping/ProbeMode.cc

@@ -122,6 +122,7 @@ int ProbeMode::init_nsock(){
       /* Create a new nsock pool */
       if ((nsp = nsp_new(NULL)) == NULL)
         outFatal(QT_3, "Failed to create new pool.  QUITTING.\n");
+      nsp_setdevice(nsp, o.getDevice());
 
       /* Allow broadcast addresses */
       nsp_setbroadcast(nsp, 1);

nse_nsock.cc

@@ -80,6 +80,7 @@ static nsock_pool new_pool (lua_State *L)
 {
   nsock_pool nsp = nsp_new(NULL);
   nsock_pool *nspp;
+  nsp_setdevice(nsp, o.device);
   nsp_setbroadcast(nsp, true);
   nspp = (nsock_pool *) lua_newuserdata(L, sizeof(nsock_pool));
   *nspp = nsp;

service_scan.cc

@@ -2682,6 +2682,7 @@ int service_scan(vector<Target *> &Targets) {
   if ((nsp = nsp_new(SG)) == NULL) {
     fatal("%s() failed to create new nsock pool.", __func__);
   }
+  nsp_setdevice(nsp, o.device);
 
   if (o.versionTrace()) {
     nsp_settrace(nsp, NULL, NSOCK_TRACE_LEVEL, o.getStartTime());