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authorRoland McGrath <roland@hack.frob.com>2013-08-27 10:42:52 -0700
committerRoland McGrath <roland@hack.frob.com>2013-08-27 10:42:52 -0700
commit5d1f0a09f3634b29d9cbbd7c7337d546502363cb (patch)
tree4b5a365a903adfad0f1df3d7064998cd71ccb477 /inet
parent6fcf28b352c435ee3d1a975619c5ae31923c44eb (diff)
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True stub __ifreq.
Diffstat (limited to 'inet')
-rw-r--r--inet/ifreq.c61
1 files changed, 4 insertions, 57 deletions
diff --git a/inet/ifreq.c b/inet/ifreq.c
index 2db6d0c300..d94d339c67 100644
--- a/inet/ifreq.c
+++ b/inet/ifreq.c
@@ -1,6 +1,6 @@
-/* Copyright (C) 1999-2013 Free Software Foundation, Inc.
+/* Collect network interface list.  Stub version.
+   Copyright (C) 2013 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Jaeger <aj@suse.de>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
@@ -18,62 +18,9 @@
 
 #include "ifreq.h"
 
-
 void
 __ifreq (struct ifreq **ifreqs, int *num_ifs, int sockfd)
 {
-  int fd = sockfd;
-  struct ifconf ifc;
-  int rq_len;
-  int nifs;
-# define RQ_IFS	4
-
-  if (fd < 0)
-    fd = __opensock ();
-  if (fd < 0)
-    {
-      *num_ifs = 0;
-      *ifreqs = NULL;
-      return;
-    }
-
-  ifc.ifc_buf = NULL;
-  rq_len = RQ_IFS * sizeof (struct ifreq) / 2; /* Doubled in the loop.  */
-  do
-    {
-      ifc.ifc_len = rq_len *= 2;
-      void *newp = realloc (ifc.ifc_buf, ifc.ifc_len);
-      if (newp == NULL || __ioctl (fd, SIOCGIFCONF, &ifc) < 0)
-	{
-	  free (ifc.ifc_buf);
-
-	  if (fd != sockfd)
-	    __close (fd);
-	  *num_ifs = 0;
-	  *ifreqs = NULL;
-	  return;
-	}
-      ifc.ifc_buf = newp;
-    }
-  while (rq_len < sizeof (struct ifreq) + ifc.ifc_len);
-
-  if (fd != sockfd)
-    __close (fd);
-
-#ifdef _HAVE_SA_LEN
-  struct ifreq *ifr = *ifreqs;
-  nifs = 0;
-  while ((char *) ifr < ifc.ifc_buf + ifc.ifc_len)
-    {
-      ++nifs;
-      ifr = __if_nextreq (ifr);
-      if (ifr == NULL)
-	break;
-    }
-#else
-  nifs = ifc.ifc_len / sizeof (struct ifreq);
-#endif
-
-  *num_ifs = nifs;
-  *ifreqs = realloc (ifc.ifc_buf, nifs * sizeof (struct ifreq));
+  *num_ifs = 0;
+  *ifreqs = NULL;
 }