fix tests and return new syscalls back

sysdeps/unix/sysv/linux/ifaddrs.c

 /* getifaddrs -- get names and addresses of all network interfaces
    Copyright (C) 2003-2007, 2008 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.
 
    The GNU C Library is distributed in the hope that it will be useful,
@@ skipping 125 matching lines @@
 
 
 int
 __netlink_request (struct netlink_handle *h, int type)
 {
   struct netlink_res *nlm_next;
   struct sockaddr_nl nladdr;
   struct nlmsghdr *nlmh;
   ssize_t read_len;
   bool done = false;
-
 #ifdef PAGE_SIZE
   /* Help the compiler optimize out the malloc call if PAGE_SIZE
      is constant and smaller or equal to PTHREAD_STACK_MIN/4.  */
   const size_t buf_size = PAGE_SIZE;
 #else
   const size_t buf_size = __getpagesize ();
 #endif
   bool use_malloc = false;
   char *buf;
 
@@ skipping 655 matching lines @@
             ifas[i - 1].ifa.ifa_next = &ifas[newlink].ifa;
           }
 
       if (i == 0 && newlink > 0)
         /* No valid link, but we allocated memory.  We have to
            populate the first entry.  */
         memmove (ifas, &ifas[newlink], sizeof (struct ifaddrs_storage));
     }
 
   *ifap = &ifas[0].ifa;
-
  exit_free:
   __netlink_free_handle (&nh);
   __netlink_close (&nh);
 
   return result;
 }
 libc_hidden_def (getifaddrs)
 
 
 #if __ASSUME_NETLINK_SUPPORT != 0
 void
 freeifaddrs (struct ifaddrs *ifa)
 {
   free (ifa);
 }
 libc_hidden_def (freeifaddrs)
 #endif