[NaCl SDK] nacl_io: implement getaddrinfo()

native_client_sdk/src/libraries/nacl_io/syscalls/hstrerror.c

-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
+/* Copyright 2013 The Chromium Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file. */
 
 #include "nacl_io/ossocket.h"
 
 #ifdef PROVIDES_SOCKET_API
 
 #include <stdio.h>
 
 const char* hstrerror(int err) {
   switch (err) {
     case HOST_NOT_FOUND:
       return "The specified host is unknown.";
     case NO_ADDRESS:
       return "The requested name is valid but does not have an IP address.";
     case NO_RECOVERY:
       return "A nonrecoverable name server error occurred.";
     case TRY_AGAIN:
       return "A temporary error occurred on an authoritative name server. "
              "Try again later.";
     case NETDB_INTERNAL:
       return "Internal error in gethostbyname.";
   }
 
   static char rtn[128];
   snprintf(rtn, sizeof(rtn), "Unknown error in gethostbyname: %d.", err);
   return rtn;
 }
 
-#endif // PROVIDES_SOCKET_API
+#endif  /* PROVIDES_SOCKET_API */