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5c81f34935
We have been using `uint8_t *`, which works fine as far as linking goes, but leads fuzz target developers to sometimes forget why they can't just modify the passed in string instead of copying it for modification (e.g. to NUL-terminate). REF: https://llvm.org/docs/LibFuzzer.html#fuzz-target Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
/*
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Fuzzing ldb_dn_explode
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Copyright (C) Catalyst IT 2020
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "fuzzing/fuzzing.h"
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#include "ldb.h"
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#define MAX_LENGTH (2 * 1024 * 1024 - 1)
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char buf[MAX_LENGTH + 1] = {0};
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int LLVMFuzzerTestOneInput(const uint8_t *input, size_t len)
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{
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struct ldb_dn *dn = NULL;
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struct ldb_context *ldb = ldb_init(NULL, NULL);
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if (ldb == NULL) {
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return 0;
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}
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/*
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* We copy the buffer in order to NUL-terminate, because running off
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* the end of the string would be an uninteresting crash.
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*/
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if (len > MAX_LENGTH) {
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len = MAX_LENGTH;
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}
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memcpy(buf, input, len);
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buf[len] = 0;
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dn = ldb_dn_new(ldb, ldb, buf);
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ldb_dn_validate(dn);
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TALLOC_FREE(ldb);
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return 0;
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}
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int LLVMFuzzerInitialize(int *argc, char ***argv)
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{
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return 0;
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}
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