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Mathis Rosenhauer
libaec
Commits
ba3a89a1
Commit
ba3a89a1
authored
Jul 05, 2017
by
Mathis Rosenhauer
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fuzzing: dump test patterns to files for initial corpus
parent
62f82d00
Changes
4
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Showing
4 changed files
with
54 additions
and
2 deletions
+54
-2
fuzz_target.cc
fuzz/fuzz_target.cc
+3
-1
check_aec.c
tests/check_aec.c
+42
-0
check_aec.h
tests/check_aec.h
+2
-0
check_code_options.c
tests/check_code_options.c
+7
-1
No files found.
fuzz/fuzz_target.cc
View file @
ba3a89a1
...
...
@@ -19,7 +19,9 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
strm
.
flags
|=
AEC_DATA_MSB
;
if
(
Data
[
1
]
&
0x40
)
strm
.
flags
|=
AEC_DATA_SIGNED
;
if
(
strm
.
bits_per_sample
<=
24
&&
strm
.
bits_per_sample
>
16
)
if
(
strm
.
bits_per_sample
<=
24
&&
strm
.
bits_per_sample
>
16
&&
Data
[
1
]
&
0x10
)
strm
.
flags
|=
AEC_DATA_3BYTE
;
strm
.
next_in
=
(
unsigned
char
*
)(
Data
+
2
);
strm
.
avail_in
=
Size
-
2
;
...
...
tests/check_aec.c
View file @
ba3a89a1
...
...
@@ -202,6 +202,10 @@ int encode_decode_small(struct test_state *state)
int
encode_decode_large
(
struct
test_state
*
state
)
{
int
status
,
i
;
char
fbase
[
1024
];
char
fname
[
1024
];
FILE
*
fp
;
int
bflags
;
size_t
to
;
struct
aec_stream
*
strm
=
state
->
strm
;
...
...
@@ -215,6 +219,31 @@ int encode_decode_large(struct test_state *state)
printf
(
"Init failed.
\n
"
);
return
99
;
}
if
(
state
->
dump
)
{
snprintf
(
fbase
,
sizeof
(
fbase
),
"BPS%02iID%iBS%02iRSI%04iFLG%04i"
,
strm
->
bits_per_sample
,
state
->
id
,
strm
->
block_size
,
strm
->
rsi
,
strm
->
flags
);
snprintf
(
fname
,
sizeof
(
fname
),
"%s.dat"
,
fbase
);
if
((
fp
=
fopen
(
fname
,
"wb"
))
==
NULL
)
{
fprintf
(
stderr
,
"ERROR: cannot open dump file %s
\n
"
,
fname
);
return
99
;
}
fputc
(
strm
->
bits_per_sample
,
fp
);
bflags
=
strm
->
block_size
>>
8
;
if
(
strm
->
flags
|
AEC_DATA_MSB
)
bflags
|=
0x80
;
if
(
strm
->
flags
|
AEC_DATA_SIGNED
)
bflags
|=
0x40
;
if
(
strm
->
flags
|
AEC_DATA_3BYTE
)
bflags
|=
0x10
;
bflags
|=
0x20
;
/* encode */
fputc
(
bflags
,
fp
);
fwrite
(
strm
->
next_in
,
strm
->
avail_in
,
1
,
fp
);
fclose
(
fp
);
}
status
=
aec_encode
(
strm
,
AEC_FLUSH
);
if
(
status
!=
AEC_OK
)
{
...
...
@@ -224,6 +253,19 @@ int encode_decode_large(struct test_state *state)
aec_encode_end
(
strm
);
if
(
state
->
dump
)
{
snprintf
(
fname
,
sizeof
(
fname
),
"%s.rz"
,
fbase
);
if
((
fp
=
fopen
(
fname
,
"wb"
))
==
NULL
)
{
fprintf
(
stderr
,
"ERROR: cannot open dump file %s
\n
"
,
fname
);
return
99
;
}
fputc
(
strm
->
bits_per_sample
,
fp
);
bflags
&=
~
0x20
;
fputc
(
bflags
,
fp
);
fwrite
(
state
->
cbuf
,
strm
->
total_out
,
1
,
fp
);
fclose
(
fp
);
}
strm
->
avail_in
=
strm
->
total_out
;
strm
->
avail_out
=
state
->
buf_len
;
strm
->
next_in
=
state
->
cbuf
;
...
...
tests/check_aec.h
View file @
ba3a89a1
...
...
@@ -4,6 +4,7 @@
struct
test_state
{
int
(
*
codec
)(
struct
test_state
*
state
);
int
id
;
int
id_len
;
int
bytes_per_sample
;
unsigned
char
*
ubuf
;
...
...
@@ -15,6 +16,7 @@ struct test_state {
long
long
int
xmax
;
long
long
int
xmin
;
void
(
*
out
)(
unsigned
char
*
dest
,
unsigned
long
long
int
val
,
int
size
);
int
dump
;
/* dump buffer to file for fuzzing corpus */
struct
aec_stream
*
strm
;
};
...
...
tests/check_code_options.c
View file @
ba3a89a1
...
...
@@ -9,6 +9,7 @@ int check_block_sizes(struct test_state *state, int id, int id_len)
{
int
bs
,
status
,
rsi
,
max_rsi
;
state
->
id
=
id
;
for
(
bs
=
8
;
bs
<=
64
;
bs
*=
2
)
{
state
->
strm
->
block_size
=
bs
;
...
...
@@ -282,12 +283,17 @@ int check_byte_orderings(struct test_state *state)
return
0
;
}
int
main
(
void
)
int
main
(
int
argc
,
char
*
argv
[]
)
{
int
status
;
struct
aec_stream
strm
;
struct
test_state
state
;
if
(
argc
>
1
&&
strncmp
(
argv
[
1
],
"-d"
,
2
)
==
0
)
state
.
dump
=
1
;
else
state
.
dump
=
0
;
state
.
buf_len
=
state
.
ibuf_len
=
BUF_SIZE
;
state
.
cbuf_len
=
2
*
BUF_SIZE
;
...
...
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