From b6e97b0af194bbee11d5f727618746e8125d3379 Mon Sep 17 00:00:00 2001
From: Gerd Moellmann <gerd@gnu.org>
Date: Thu, 13 Sep 2001 14:05:17 +0000
Subject: [PATCH] (current_lock_owner): If readlink returns ERANGE, take that
 to mean that the buffer is too small.

---
 src/filelock.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/filelock.c b/src/filelock.c
index 44db9722f91..6e78a05e309 100644
--- a/src/filelock.c
+++ b/src/filelock.c
@@ -436,6 +436,11 @@ current_lock_owner (owner, lfname)
       bufsize *= 2;
       lfinfo = (char *) xrealloc (lfinfo, bufsize);
       len = readlink (lfname, lfinfo, bufsize);
+#ifdef ERANGE
+      /* HP-UX reports ERANGE if the buffer is too small.  */
+      if (len == -1 && errno == ERANGE)
+	continue;
+#endif
     }
   while (len >= bufsize);
   
-- 
2.39.5