stdio/FreeBSD/wbuf.c.patch

   1 --- wbuf.c.bsdnew       2009-11-11 13:33:20.000000000 -0800
   2 +++ wbuf.c      2009-11-11 13:33:22.000000000 -0800
   3 @@ -37,6 +37,7 @@ static char sccsid[] = "@(#)wbuf.c    8.1 (
   4  __FBSDID("$FreeBSD: src/lib/libc/stdio/wbuf.c,v 1.12 2007/01/09 00:28:08 imp Exp $");
   5
   6  #include <stdio.h>
   7 +#include <errno.h>
   8  #include "local.h"
   9
  10  /*
  11 @@ -61,8 +62,10 @@ __swbuf(c, fp)
  12          * calls might wrap _w from negative to positive.
  13          */
  14         fp->_w = fp->_lbfsize;
  15 -       if (prepwrite(fp) != 0)
  16 +       if (prepwrite(fp) != 0) {
  17 +               errno = EBADF;
  18                 return (EOF);
  19 +       }
  20         c = (unsigned char)c;
  21
  22         ORIENT(fp, -1);