Fix fflush issues.

* libc/stdio/fflush.c (_fflush_r): New function.
(fflush): Fix reentrancy and large offset behavior.
* libc/include/stdio.h (_fflush_r): Add prototype.
* libc/stdio/fclose.c (_fclose_r): All fflush callers changed.
* libc/stdio/freopen.c (_freopen_r): Likewise.
* libc/stdio/fseek.c (_fseek_r): Likewise.
* libc/stdio/ftell.c (_ftell_r): Likewise.
* libc/stdio/fvwrite.c (__sfvwrite_r): Likewise.
* libc/stdio/refill.c (__srefill_r): Likewise.
* libc/stdio/setvbuf.c (setvbuf): Likewise.
* libc/stdio/ungetc.c (_ungetc_r): Likewise.
* libc/stdio/vfprintf.c (__sbprintf): Likewise.
* libc/stdio/wbuf.c (__swbuf_r): Likewise.
* libc/stdio64/freopen64.c (_freopen64_r): Likewise.
* libc/stdio64/fseeko64.c (_fseeko64_r): Likewise.  Defer to
32-bit version if not large file.
* libc/stdio64/ftello64.c (_ftello64_r): Likewise.
* libc/stdio64/tmpfile64.c (_tmpfile64_r): Avoid compile warning.

1 files changed, 3 insertions, 3 deletions

diff --git a/newlib/libc/stdio/wbuf.c b/newlib/libc/stdio/wbuf.c
index ea8f64d8d..bd7f15d9b 100644
--- a/newlib/libc/stdio/wbuf.c
+++ b/newlib/libc/stdio/wbuf.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1990, 2007 The Regents of the University of California.
+ * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms are permitted
@@ -74,14 +74,14 @@ _DEFUN(__swbuf_r, (ptr, c, fp),
   n = fp->_p - fp->_bf._base;
   if (n >= fp->_bf._size)
     {
-      if (fflush (fp))
+      if (_fflush_r (ptr, fp))
 	return EOF;
       n = 0;
     }
   fp->_w--;
   *fp->_p++ = c;
   if (++n == fp->_bf._size || (fp->_flags & __SLBF && c == '\n'))
-    if (fflush (fp))
+    if (_fflush_r (ptr, fp))
       return EOF;
   return c;
 }