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fuzz: ldb binary decode/enode

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Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This commit is contained in:
Douglas Bagnall 2020-01-10 17:33:03 +13:00 committed by Gary Lockyer
parent da4786003f
commit f4bafcca86
2 changed files with 54 additions and 0 deletions
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49
lib/fuzzing/fuzz_ldb_parse_binary_decode.c Normal file
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@ -0,0 +1,49 @@
/*
Fuzzing ldb_parse_control_from_string
Copyright (C) Catalyst IT 2020
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/>.
*/
#include "includes.h"
#include "fuzzing/fuzzing.h"
#include "ldb_private.h"
#define MAX_LENGTH (2 * 1024 * 1024 - 1)
char buf[MAX_LENGTH + 1] = {0};
static char * possibly_truncate(uint8_t *input, size_t len)
{
if (len > MAX_LENGTH) {
len = MAX_LENGTH;
}
memcpy(buf, input, len);
buf[len] = 0;
return buf;
}
int LLVMFuzzerTestOneInput(uint8_t *input, size_t len)
{
TALLOC_CTX *mem_ctx = talloc_init(__FUNCTION__);
struct ldb_val val = {0};
const char *s = possibly_truncate(input, len);
/* we treat the same string to encoding and decoding, not
* round-tripping. */
val = ldb_binary_decode(mem_ctx, s);
ldb_binary_encode_string(mem_ctx, s);
TALLOC_FREE(mem_ctx);
return 0;
}

5
lib/fuzzing/wscript_build
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@ -57,6 +57,11 @@ bld.SAMBA_BINARY('fuzz_ldb_ldif_read',
deps='fuzzing ldb afl-fuzz-main',
fuzzer=True)
bld.SAMBA_BINARY('fuzz_ldb_parse_binary_decode',
source='fuzz_ldb_parse_binary_decode.c',
deps='fuzzing ldb afl-fuzz-main',
fuzzer=True)
bld.SAMBA_BINARY('fuzz_ldb_parse_tree',
source='fuzz_ldb_parse_tree.c',
deps='fuzzing ldb afl-fuzz-main',