* stdio-common/vfprintf.c (_IO_helper_overflow): In case _IO_sputn

	doesn't manage to write anything, fail.

diff --git a/ChangeLog b/ChangeLog
index 45c79fdedb93470e0700ab58feeeae957d2216de..15b1c5284fb8d880ae468f01d1fb096a230e1e24 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2008-07-15  Ulrich Drepper  <drepper@redhat.com>
 
+       * stdio-common/vfprintf.c (_IO_helper_overflow): In case _IO_sputn
+       doesn't manage to write anything, fail.
+
        * malloc/hooks.c (__malloc_check_init): Remove printf.
 
 2008-07-14  Samuel Thibault  <samuel.thibault@ens-lyon.org>

diff --git a/stdio-common/vfprintf.c b/stdio-common/vfprintf.c
index ca6343c37fdb1777d658458d8ab55a0fd12a1d65..78a1c77d8a553b505171d0233db237bcb6b6c8c1 100644 (file)
--- a/stdio-common/vfprintf.c
+++ b/stdio-common/vfprintf.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2002, 2003, 2004, 2005, 2006, 2007
+/* Copyright (C) 1991-2002, 2003, 2004, 2005, 2006, 2007, 2008
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -2080,6 +2080,8 @@ _IO_helper_overflow (_IO_FILE *s, int c)
     {
       _IO_size_t written = _IO_sputn (target, s->_wide_data->_IO_write_base,
                                      used);
+      if (written == 0)
+       return WEOF;
       s->_wide_data->_IO_write_ptr -= written;
     }
 #else
@@ -2087,6 +2089,8 @@ _IO_helper_overflow (_IO_FILE *s, int c)
   if (used)
     {
       _IO_size_t written = _IO_sputn (target, s->_IO_write_base, used);
+      if (written == 0)
+       return EOF;
       s->_IO_write_ptr -= written;
     }
 #endif