Implemented get_sock

And fixed a test. It seems underlaying bind does not like passing NULL
pointer as address and kills program with sigterm.

git-svn-id: svn://bind10.isc.org/svn/bind10/branches/vorner-sockcreator@3159 e5f2f494-b856-4b98-b285-d166d9295462

src/bin/sockcreator/sockcreator.cc

@@ -23,7 +23,14 @@ namespace socket_creator {
 int
 get_sock(const int type, struct sockaddr *bind_addr, const socklen_t addr_len)
 {
-    // TODO Implement
+    int sock(socket(bind_addr->sa_family, type, 0));
+    if(sock == -1) {
+        return -1;
+    }
+    if(bind(sock, bind_addr, addr_len) == -1) {
+        return -2;
+    }
+    return sock;
 }
 
 int

src/bin/sockcreator/tests/sockcreator_tests.cc

@@ -109,7 +109,9 @@ TEST(get_sock, tcp6_create) {
  * is able to report error.
  */
 TEST(get_sock, fail_with_nonsense) {
-    ASSERT_LT(get_sock(0, NULL, 0), 0);
+    struct sockaddr addr;
+    memset(&addr, 0, sizeof addr);
+    ASSERT_LT(get_sock(0, &addr, sizeof addr), 0);
 }
 
 /*