/* Print output of stream to given obstack.
- Copyright (C) 1996,1997,1999,2000,2001,2002,2003,2004,2005,2006,2008
- Free Software Foundation, Inc.
+ Copyright (C) 1996-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
-
-#include <stdlib.h>
-#include <libioP.h>
-#include "../libio/strfile.h"
-#include <assert.h>
-#include <string.h>
-#include <errno.h>
-#include <obstack.h>
+#include <libio/libioP.h>
#include <stdarg.h>
-#include <stdio_ext.h>
-
-
-struct _IO_obstack_file
-{
- struct _IO_FILE_plus file;
- struct obstack *obstack;
-};
-
-extern const struct _IO_jump_t _IO_obstack_jumps attribute_hidden;
-
-int
-__obstack_vprintf_chk (struct obstack *obstack, int flags, const char *format,
- va_list args)
-{
- struct obstack_FILE
- {
- struct _IO_obstack_file ofile;
- } new_f;
- int result;
- int size;
- int room;
-
-#ifdef _IO_MTSAFE_IO
- new_f.ofile.file.file._lock = NULL;
-#endif
-
- _IO_no_init (&new_f.ofile.file.file, _IO_USER_LOCK, -1, NULL, NULL);
- _IO_JUMPS (&new_f.ofile.file) = &_IO_obstack_jumps;
- room = obstack_room (obstack);
- size = obstack_object_size (obstack) + room;
- if (size == 0)
- {
- /* We have to handle the allocation a bit different since the
- `_IO_str_init_static' function would handle a size of zero
- different from what we expect. */
-
- /* Get more memory. */
- obstack_make_room (obstack, 64);
-
- /* Recompute how much room we have. */
- room = obstack_room (obstack);
- size = room;
-
- assert (size != 0);
- }
-
- _IO_str_init_static_internal ((struct _IO_strfile_ *) &new_f.ofile,
- obstack_base (obstack),
- size, obstack_next_free (obstack));
- /* Now allocate the rest of the current chunk. */
- assert (size == (new_f.ofile.file.file._IO_write_end
- - new_f.ofile.file.file._IO_write_base));
- assert (new_f.ofile.file.file._IO_write_ptr
- == (new_f.ofile.file.file._IO_write_base
- + obstack_object_size (obstack)));
- obstack_blank_fast (obstack, room);
-
- new_f.ofile.obstack = obstack;
-
- /* For flags > 0 (i.e. __USE_FORTIFY_LEVEL > 1) request that %n
- can only come from read-only format strings. */
- if (flags > 0)
- new_f.ofile.file.file._flags2 |= _IO_FLAGS2_FORTIFY;
-
- result = INTUSE(_IO_vfprintf) (&new_f.ofile.file.file, format, args);
-
- /* Shrink the buffer to the space we really currently need. */
- obstack_blank_fast (obstack, (new_f.ofile.file.file._IO_write_ptr
- - new_f.ofile.file.file._IO_write_end));
-
- return result;
-}
-libc_hidden_def (__obstack_vprintf_chk)
int
-__obstack_printf_chk (struct obstack *obstack, int flags, const char *format,
+__obstack_printf_chk (struct obstack *obstack, int flag, const char *format,
...)
{
- int result;
+ /* For flag > 0 (i.e. __USE_FORTIFY_LEVEL > 1) request that %n
+ can only come from read-only format strings. */
+ unsigned int mode = (flag > 0) ? PRINTF_FORTIFY : 0;
va_list ap;
+ int ret;
+
va_start (ap, format);
- result = __obstack_vprintf_chk (obstack, flags, format, ap);
+ ret = __obstack_vprintf_internal (obstack, format, ap, mode);
va_end (ap);
- return result;
+
+ return ret;
}