From 274441f62a61dd5329b3a20d8356759bd2ff2d93 Mon Sep 17 00:00:00 2001
From: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Mon, 12 Jan 2026 21:23:33 +0100
Subject: [PATCH] tst-if_nameindex.c: Fix minimum buffer size

The standard says that the buffer given to if_indextoname shall have at
least IF_NAMESIZE bytes.
---
 inet/tst-if_nameindex.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/inet/tst-if_nameindex.c b/inet/tst-if_nameindex.c
index c14fc64b92..a371dc4fc1 100644
--- a/inet/tst-if_nameindex.c
+++ b/inet/tst-if_nameindex.c
@@ -72,6 +72,8 @@ do_test (void)
       if (strlen (ifp->if_name) + 1 > buflen)
 	buflen = strlen (ifp->if_name) + 1;
     }
+  if (buflen < IF_NAMESIZE)
+    buflen = IF_NAMESIZE;
   buffer = (char *) xmalloc (buflen);
 
   /* Check normal operation.  */