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lex_get_text_buffer_read: Avoid potential buffer overflow.
[pspp]
/
src
/
libpspp
/
heap.h
diff --git
a/src/libpspp/heap.h
b/src/libpspp/heap.h
index 97fcde4c1d040a4598b1c3bb6fa701805d07e2bb..c24c763277d53fde92c03f3e8360fc90e509f61d 100644
(file)
--- a/
src/libpspp/heap.h
+++ b/
src/libpspp/heap.h
@@
-1,20
+1,18
@@
-/* PSPP -
computes sample statistic
s.
- Copyright (C) 2007 Free Software Foundation, Inc.
+/* PSPP -
a program for statistical analysi
s.
+ Copyright (C) 2007
, 2009, 2011
Free Software Foundation, Inc.
- This program is free software
; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
-
License, or
(at your option) any later version.
+ This program is free software
: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
- This program is distributed in the hope that it will be useful,
but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU
- General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+
but
WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ G
NU G
eneral Public License for more details.
You should have received a copy of the GNU General Public License
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Embedded priority queue, implemented as a heap.
/* Embedded priority queue, implemented as a heap.
@@
-72,6
+70,7
@@
#ifndef LIBPSPP_HEAP_H
#define LIBPSPP_HEAP_H 1
#ifndef LIBPSPP_HEAP_H
#define LIBPSPP_HEAP_H 1
+#include "libpspp/cast.h"
#include <stdbool.h>
#include <stddef.h>
#include <stdbool.h>
#include <stddef.h>
@@
-80,8
+79,9
@@
struct pool;
/* Returns the data structure corresponding to the given heap
NODE, assuming that NODE is embedded as the given MEMBER name
in data type STRUCT. */
/* Returns the data structure corresponding to the given heap
NODE, assuming that NODE is embedded as the given MEMBER name
in data type STRUCT. */
-#define heap_data(NODE, STRUCT, MEMBER) \
- ((STRUCT *) ((char *) (NODE) - offsetof (STRUCT, MEMBER)))
+#define heap_data(NODE, STRUCT, MEMBER) \
+ (CHECK_POINTER_HAS_TYPE (NODE, struct heap_node *), \
+ UP_CAST (NODE, STRUCT, MEMBER))
/* A node in a heap. Opaque.
One of these structures must be embedded in your heap node. */
/* A node in a heap. Opaque.
One of these structures must be embedded in your heap node. */