blob: afd12a5f143583d2a0186c9ba29a3491b3255ff0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
#!/bin/sh
# Validate truncate integer overflow
# Copyright (C) 2008-2009 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 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.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
if test "$VERBOSE" = yes; then
set -x
truncate --version
fi
. $srcdir/test-lib.sh
getlimits_
# -= overflow
truncate -s-1 create-zero-len-file || fail=1
echo > non-empty-file
# signed overflow
truncate -s$OFF_T_OFLOW file && fail=1
# += signed overflow
truncate -s+$OFF_T_MAX non-empty-file && fail=1
# *= signed overflow
IO_BLOCK_OFLOW=$(expr $OFF_T_MAX / $(stat -f -c%s .) + 1)
truncate --io-blocks --size=$IO_BLOCK_OFLOW file && fail=1
Exit $fail
|
