samba-mirror/lib/fuzzing/fuzz_cli_credentials_parse_string.c

/*
  Fuzz cli_credentials_parse_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 "auth/credentials/credentials.h"
#include "fuzzing/fuzzing.h"

#define MAX_LENGTH (1024 * 10)
char buf[MAX_LENGTH + 1];

const enum credentials_obtained obtained = CRED_UNINITIALISED;


int LLVMFuzzerTestOneInput(const uint8_t *input, size_t len)
{
	TALLOC_CTX *mem_ctx = NULL;
	struct cli_credentials *credentials = NULL;
	bool anon;
	const char *username;
	const char *domain;

	if (len > MAX_LENGTH) {
		return 0;
	}

	memcpy(buf, input, len);
	buf[len] = '\0';

	mem_ctx = talloc_new(NULL);
	credentials = cli_credentials_init(mem_ctx);

	cli_credentials_parse_string(credentials, buf, obtained);

	anon = cli_credentials_is_anonymous(credentials);

	cli_credentials_get_ntlm_username_domain(credentials,
						 mem_ctx,
						 &username,
						 &domain);

	talloc_free(mem_ctx);
	return 0;
}


int LLVMFuzzerInitialize(int *argc, char ***argv)
{
	return 0;
}