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a42a5a42f7
Checksums are better ignored during fuzzing, hence a flag is added to the regfio parser to disable checksums. Signed-off-by: Michael Hanselmann <public@hansmi.ch> Reviewed-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Uri Simchoni <uri@samba.org>
69 lines
1.6 KiB
C
69 lines
1.6 KiB
C
/*
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* Unix SMB/CIFS implementation.
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* Windows NT registry I/O library
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* Copyright (C) Michael Hanselmann 2019
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*
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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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*
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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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*
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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 "system/filesys.h"
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#include "lib/util/fault.h"
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#include "registry/reg_objects.h"
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#include "registry/regfio.h"
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static FILE *fp;
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static char filename[128];
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int LLVMFuzzerInitialize(int *argc, char ***argv)
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{
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fp = tmpfile();
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(void)snprintf(filename, sizeof(filename), "/proc/self/fd/%d", fileno(fp));
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return 0;
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}
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int LLVMFuzzerTestOneInput(uint8_t *buf, size_t len)
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{
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REGF_FILE* regfile;
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REGF_NK_REC *nk, *subkey;
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rewind(fp);
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(void)fwrite(buf, len, 1, fp);
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(void)fflush(fp);
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regfile = regfio_open(filename, O_RDONLY, 0600);
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if (!regfile) {
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goto out;
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}
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regfile->ignore_checksums = true;
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nk = regfio_rootkey(regfile);
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if (nk != NULL) {
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nk->subkey_index = 0;
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while ((subkey = regfio_fetch_subkey(regfile, nk))) {
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}
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}
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out:
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if (regfile != NULL) {
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regfio_close(regfile);
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}
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return 0;
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}
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