Remove pre-2.2 Linux kernel support.

1 files changed, 16 insertions, 41 deletions

diff --git a/sysdeps/unix/sysv/linux/ifreq.c b/sysdeps/unix/sysv/linux/ifreq.c
index bd0d17e5d5..551af725b0 100644
--- a/sysdeps/unix/sysv/linux/ifreq.c
+++ b/sysdeps/unix/sysv/linux/ifreq.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999,2002,2003,2004,2005,2006 Free Software Foundation, Inc.
+/* Copyright (C) 1999-2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Andreas Jaeger <aj@suse.de>.
 
@@ -19,13 +19,6 @@
 #include "ifreq.h"
 #include <kernel-features.h>
 
-/* Variable to signal whether SIOCGIFCONF is not available.  */
-#if __ASSUME_SIOCGIFNAME == 0 || 1
-static int old_siocgifconf;
-#else
-# define old_siocgifconf 0
-#endif
-
 
 void
 __ifreq (struct ifreq **ifreqs, int *num_ifs, int sockfd)
@@ -49,45 +42,27 @@ __ifreq (struct ifreq **ifreqs, int *num_ifs, int sockfd)
 
   /* We may be able to get the needed buffer size directly, rather than
      guessing.  */
-  if (! old_siocgifconf)
-    {
-      ifc.ifc_buf = NULL;
-      ifc.ifc_len = 0;
-      if (__ioctl (fd, SIOCGIFCONF, &ifc) < 0 || ifc.ifc_len == 0)
-	{
-# if __ASSUME_SIOCGIFNAME == 0
-	  old_siocgifconf = 1;
-# endif
-	  rq_len = RQ_IFS * sizeof (struct ifreq);
-	}
-      else
-	rq_len = ifc.ifc_len;
-    }
-  else
+  ifc.ifc_buf = NULL;
+  ifc.ifc_len = 0;
+  if (__ioctl (fd, SIOCGIFCONF, &ifc) < 0 || ifc.ifc_len == 0)
     rq_len = RQ_IFS * sizeof (struct ifreq);
+  else
+    rq_len = ifc.ifc_len;
 
   /* Read all the interfaces out of the kernel.  */
-  while (1)
+  ifc.ifc_len = rq_len;
+  void *newp = realloc (ifc.ifc_buf, ifc.ifc_len);
+  if (newp == NULL
+      || (ifc.ifc_buf = newp, __ioctl (fd, SIOCGIFCONF, &ifc)) < 0)
     {
-      ifc.ifc_len = rq_len;
-      void *newp = realloc (ifc.ifc_buf, ifc.ifc_len);
-      if (newp == NULL
-	  || (ifc.ifc_buf = newp, __ioctl (fd, SIOCGIFCONF, &ifc)) < 0)
-	{
-	  free (ifc.ifc_buf);
+      free (ifc.ifc_buf);
 
-	  if (fd != sockfd)
-	    __close (fd);
+      if (fd != sockfd)
+	__close (fd);
 
-	  *num_ifs = 0;
-	  *ifreqs = NULL;
-	  return;
-	}
-
-      if (!old_siocgifconf || ifc.ifc_len < rq_len)
-	break;
-
-      rq_len *= 2;
+      *num_ifs = 0;
+      *ifreqs = NULL;
+      return;
     }
 
   nifs = ifc.ifc_len / sizeof (struct ifreq);