ch03 reorganize packages

src/main/scala/ch03/common.scala

@@ -1,4 +1,4 @@
-package ch03.common
+package ch03
 
 import scalanative.posix.sys.socket.{AF_UNSPEC, SOCK_STREAM, socket, sockaddr, connect}
 import scalanative.posix.netdb.{addrinfo, getaddrinfo}

src/main/scala/ch03/httpClient.scala

@@ -1,4 +1,5 @@
-package ch03.http
+package ch03
+package http
 
 import scalanative.unsafe.{Zone, Ptr, CInt, CString, toCString, fromCString, CQuote}
 import scalanative.unsafe.{stackalloc, extern}
@@ -7,8 +8,6 @@ import scalanative.libc.{stdio, stdlib, string}
 import stdio.{FILE, fclose}
 
 import collection.mutable.{Map => MMap}
-import ch03.common
-import common.util
 
 // These are Scala strings, they will be converted to C-strings later.
 case class HttpRequest(
@@ -136,5 +135,5 @@ def httpClient(args: String*): Unit =
     val (port, path) = (toCString(args(1)), args(2)) // requires Zone
     stdio.printf(c"looking up address: %s port: %s\n", address, port) // no println (Zone)
 
-    val sock = common.makeConnection(address, port) // establish connection
+    val sock = makeConnection(address, port) // establish connection
     handleConnection(sock, host, path) // do request / response on connection

src/main/scala/ch03/tcpClient.scala

@@ -1,12 +1,10 @@
-package ch03.tcp
+package ch03
+package tcp
 
 import scalanative.unsafe.{Zone, Ptr, toCString, fromCString, CQuote, CString}
 import scalanative.libc.{stdio, stdlib}
 import stdio.{FILE, fgets, fclose}
 
-import ch03.common
-import common.util
-
 // used in handleConnection
 def makeRequest(sock: Ptr[FILE], request: String): String =
   // sending request and receiving response thru socket is low-level (C), so allocate.
@@ -80,5 +78,5 @@ def tcpClient(args: String*): Unit =
     val sock = Zone: // implicit z => // 0.5
       val (address, port) = (toCString(args(0)), toCString(args(1))) // requires Zone
       stdio.printf(c"looking up address: %s port: %s\n", address, port)
-      common.makeConnection(address, port) // looks up address, returns socket
+      makeConnection(address, port) // looks up address, returns socket
     handleConnection(sock) // gets response from socket and prints it.