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samba-mirror/lib/fuzzing/fuzz_oLschema2ldif.c
Andrew Bartlett 43bc0b2c76 lib/fuzzing: Avoid NULL pointer de-ref from 0-length input
fmemopen() does not like 0-length input.

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2019-11-18 19:39:30 +00:00

61 lines
1.4 KiB
C

/*
Fuzzing for oLschema2ldif
Copyright (C) Michael Hanselmann 2019
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.h"
#include "utils/oLschema2ldif/lib.h"
static FILE *devnull;
int LLVMFuzzerInitialize(int *argc, char ***argv)
{
devnull = fopen("/dev/null", "w");
return 0;
}
int LLVMFuzzerTestOneInput(uint8_t *buf, size_t len)
{
TALLOC_CTX *mem_ctx;
struct conv_options opt;
if (len == 0) {
/*
* Otherwise fmemopen() will return null and set errno
* to EINVAL
*/
return 0;
}
mem_ctx = talloc_init(__FUNCTION__);
opt.in = fmemopen(buf, len, "r");
opt.out = devnull;
opt.ldb_ctx = ldb_init(mem_ctx, NULL);
opt.basedn = ldb_dn_new(mem_ctx, opt.ldb_ctx, "");
process_file(mem_ctx, &opt);
fclose(opt.in);
talloc_free(mem_ctx);
return 0;
}