Network error messages and code cleanp

src/libsrc/etherip.pla

@@ -378,12 +378,14 @@ end
 // Open TCP socket in SERVER mode
 //
 def etherListenTCP(lclport, callback, param)
+    puts("TCP/IP not yet implented for this hardware.\n")
     return 0
 end
 //
 // Open TCP socket in CLIENT mode
 //
 def etherConnectTCP(remip, remport, lclport, callback, param)
+    puts("TCP/IP not yet implented for this hardware.\n")
     return 0
 end
 //

src/libsrc/inet.pla

@@ -213,6 +213,7 @@ def iNetInit
         fin
         driver = driver + ^driver + 1
     loop
+    puts("No network adapters found.\n")
     return NULL
 end