From a11451b3539639ea1d0ecb8137007a1cd4cd3bdd Mon Sep 17 00:00:00 2001
From: Corinna Vinschen <corinna@vinschen.de>
Date: Tue, 25 Nov 2008 09:33:43 +0000
Subject: 	* libc/stdio/gets.c (_gets_r): Lock stdin here and call 
 __sgetc_r instead of _getchar_r.

---
 newlib/libc/stdio/gets.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'newlib/libc/stdio/gets.c')

diff --git a/newlib/libc/stdio/gets.c b/newlib/libc/stdio/gets.c
index b90271fb9..17d144316 100644
--- a/newlib/libc/stdio/gets.c
+++ b/newlib/libc/stdio/gets.c
@@ -79,15 +79,20 @@ _DEFUN(_gets_r, (ptr, buf),
   register int c;
   register char *s = buf;
 
-  while ((c = _getchar_r (ptr)) != '\n')
+  _flockfile (stdin);
+  while ((c = __sgetc_r (ptr, stdin)) != '\n')
     if (c == EOF)
       if (s == buf)
-	return NULL;
+	{
+	  _funlockfile (stdin);
+	  return NULL;
+	}
       else
 	break;
     else
       *s++ = c;
   *s = 0;
+  _funlockfile (stdin);
   return buf;
 }
 
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