* include/stdio.h (__asprintf_chk, __dprintf_chk, cvs/fedora-glibc-20080305T0857

	__obstack_printf_chk): New prototypes.
	(__vasprintf_chk, __vdprintf_chk,
	__obstack_vprintf_chk): Likewise.
	Add libc_hidden_proto.
	* libio/obprintf.c
	(_IO_obstack_jumps): No longer static, add attribute_hidden.
	* libio/bits/stdio-ldbl.h (__asprintf_chk, __dprintf_chk,
	__obstack_printf_chk, __vasprintf_chk, __vdprintf_chk,
	__obstack_vprintf_chk): Add __LDBL_REDIR_DECL.
	* libio/bits/stdio2.h (__asprintf_chk, __dprintf_chk,
	__obstack_printf_chk, __vasprintf_chk, __vdprintf_chk,
	__obstack_vprintf_chk): New prototypes.
	(asprintf, __asprintf, dprintf, obstack_printf, vasprintf, vdprintf,
	obstack_vprintf): New inlines.
	* debug/dprintf_chk.c: New file.
	* debug/vdprintf_chk.c: New file.
	* debug/asprintf_chk.c: New file.
	* debug/vasprintf_chk.c: New file.
	* debug/obprintf_chk.c: New file.
	* debug/tst-chk1.c (do_test): Add asprintf and obstack_printf tests.
	* debug/Versions (__asprintf_chk, __dprintf_chk, __obstack_printf_chk,
	__vasprintf_chk, __vdprintf_chk, __obstack_vprintf_chk): Export
	@@GLIBC_2.8.
	* debug/Makefile: Build asprintf_chk, vasprintf_chk, dprintf_chk,
	vdprintf_chk and obprintf_chk, set CFLAGS for them.
	* sysdeps/ieee754/ldbl-opt/nldbl-compat.c (__nldbl___vasprintf_chk,
	__nldbl___vdprintf_chk, __nldbl___obstack_vprintf_chk): Add
	libc_hidden_proto.
	* sysdeps/ieee754/ldbl-opt/nldbl-compat.h (__nldbl___vasprintf_chk,
	__nldbl___vdprintf_chk, __nldbl___obstack_vprintf_chk): New prototypes.
	* sysdeps/ieee754/ldbl-opt/Versions (__nldbl___asprintf_chk,
	__nldbl___vasprintf_chk, __nldbl___dprintf_chk, __nldbl___vdprintf_chk,
	__nldbl___obstack_printf_chk, __nldbl___obstack_vprintf_chk): Export
	@@GLIBC_2.8.
	* sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add asprintf_chk,
	vasprintf_chk, dprintf_chk, vdprintf_chk, obstack_printf_chk and
	obstack_vprintf_chk.
	* sysdeps/ieee754/ldbl-opt/nldbl-obstack_vprintf_chk.c: New file.
	* sysdeps/ieee754/ldbl-opt/nldbl-dprintf_chk.c: New file.
	* sysdeps/ieee754/ldbl-opt/nldbl-obstack_printf_chk.c: New file.
	* sysdeps/ieee754/ldbl-opt/nldbl-asprintf_chk.c: New file.
	* sysdeps/ieee754/ldbl-opt/nldbl-vdprintf_chk.c: New file.
	* sysdeps/ieee754/ldbl-opt/nldbl-vasprintf_chk.c: New file.

1 files changed, 35 insertions, 1 deletions

diff --git a/debug/tst-chk1.c b/debug/tst-chk1.c
index 487b071026..e03f3dba6d 100644
--- a/debug/tst-chk1.c
+++ b/debug/tst-chk1.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+/* Copyright (C) 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
 
@@ -20,6 +20,7 @@
 #include <assert.h>
 #include <fcntl.h>
 #include <locale.h>
+#include <obstack.h>
 #include <paths.h>
 #include <setjmp.h>
 #include <signal.h>
@@ -31,6 +32,9 @@
 #include <sys/socket.h>
 #include <sys/un.h>
 
+#define obstack_chunk_alloc malloc
+#define obstack_chunk_free free
+
 char *temp_filename;
 static void do_prepare (void);
 static int do_test (void);
@@ -705,6 +709,36 @@ do_test (void)
   if (fprintf (fp, buf2 + 4, str5) != 7)
     FAIL ();
 
+  char *my_ptr = NULL;
+  strcpy (buf2 + 2, "%n%s%n");
+  /* When the format string is writable and contains %n,
+     with -D_FORTIFY_SOURCE=2 it causes __chk_fail.  */
+  CHK_FAIL2_START
+  if (asprintf (&my_ptr, buf2, str4, &n1, str5, &n1) != 14)
+    FAIL ();
+  else
+    free (my_ptr);
+  CHK_FAIL2_END
+
+  struct obstack obs;
+  obstack_init (&obs);
+  CHK_FAIL2_START
+  if (obstack_printf (&obs, buf2, str4, &n1, str5, &n1) != 14)
+    FAIL ();
+  CHK_FAIL2_END
+  obstack_free (&obs, NULL);
+
+  my_ptr = NULL;
+  if (asprintf (&my_ptr, "%s%n%s%n", str4, &n1, str5, &n1) != 14)
+    FAIL ();
+  else
+    free (my_ptr);
+
+  obstack_init (&obs);
+  if (obstack_printf (&obs, "%s%n%s%n", str4, &n1, str5, &n1) != 14)
+    FAIL ();
+  obstack_free (&obs, NULL);
+
   if (freopen (temp_filename, "r", stdin) == NULL)
     {
       puts ("could not open temporary file");