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winafl/test_static.cpp at master · googleprojectzero/winafl · GitHub
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/*
WinAFL - A simple test binary that exercises various behaviors
depending on inputs:
- 'test1' crashes with a normal write access violation at NULL
- 'test2' crashes with a /GS stack cookie violation
- 'test3' triggers a hang
- 'test4' triggers an exception that is caught and handled
- 'test5' triggers an OutputDebugString
- 'test6' triggers an allocation of 120MB (and a crash if the
allocation fails)
-------------------------------------------------------------
Written by Axel "0vercl0k" Souchet <0vercl0k@tuxfamily.org>
Copyright 2017 Google Inc. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#
define
_CRT_SECURE_NO_WARNINGS
#
include
<
stdio.h
>
#
include
<
windows.h
>
#
include
<
string.h
>
#
include
"
afl-staticinstr.h
"
int
test
(
int
argc,
char
**argv) {
char
*crash =
NULL
;
FILE
*fp =
fopen
(argv[
1
],
"
rb
"
);
char
c;
if
(!fp) {
printf
(
"
Error opening file
\n
"
);
goto
end;
}
if
(
fread
(&c,
1
,
1
, fp) !=
1
) {
printf
(
"
Error reading file
\n
"
);
goto
clean;
}
if
(c !=
'
t
'
) {
printf
(
"
Error 1
\n
"
);
goto
clean;
}
if
(
fread
(&c,
1
,
1
, fp) !=
1
) {
printf
(
"
Error reading file
\n
"
);
goto
clean;
}
if
(c !=
'
e
'
) {
printf
(
"
Error 2
\n
"
);
goto
clean;
}
if
(
fread
(&c,
1
,
1
, fp) !=
1
) {
printf
(
"
Error reading file
\n
"
);
goto
clean;
}
if
(c !=
'
s
'
) {
printf
(
"
Error 3
\n
"
);
goto
clean;
}
if
(
fread
(&c,
1
,
1
, fp) !=
1
) {
printf
(
"
Error reading file
\n
"
);
goto
clean;
}
if
(c !=
'
t
'
) {
printf
(
"
Error 4
\n
"
);
goto
clean;
}
printf
(
"
!!!!!!!!!!OK!!!!!!!!!!
\n
"
);
if
(
fread
(&c,
1
,
1
, fp) !=
1
) {
printf
(
"
Error reading file
\n
"
);
goto
clean;
}
if
(c ==
'
1
'
) {
crash[
0
] =
1
;
}
else
if
(c ==
'
2
'
) {
char
buffer[
5
] = {
0
};
strcat
(buffer, argv[
0
]);
}
else
if
(c ==
'
3
'
) {
printf
(
"
triggering a hang
\n
"
);
Sleep
(
50
*
1000
);
}
else
if
(c ==
'
4
'
) {
try
{
throw
int
(
1337
);
}
catch
(...) {
printf
(
"
Caught its ok!
\n
"
);
}
}
else
if
(c ==
'
5
'
) {
OutputDebugString
(
TEXT
(
"
hello!
"
));
}
else
if
(c ==
'
6
'
) {
printf
(
"
allocating 120MB
\n
"
);
char
*buffer = (
char
*)
malloc
((
1024
*
1024
) *
120
);
*buffer =
0
;
free
(buffer);
}
else
{
printf
(
"
Error 5
\n
"
);
}
clean:
fclose
(fp);
end:
return
EXIT_SUCCESS
;
}
#
pragma
optimize("", off)
int
fuzz
(
int
argc,
char
**argv) {
while
(
__afl_persistent_loop
()) {
test
(argc, argv);
}
return
1
;
}
#
pragma
optimize("", on)
int
main
(
int
argc,
char
** argv)
{
if
(argc <
2
) {
printf
(
"
Usage: %s <input file>
\n
"
, argv[
0
]);
return
0
;
}
return
fuzz
(argc, argv);
}
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