Files
sudo/lib/iolog/regress/fuzz/fuzz_iolog_json.c
Todd C. Miller 1e3cecc608 Add initial fuzzers to be used by oss-fuzz.
These are not yet hooked up to the sudo build.
2021-02-01 15:17:57 -07:00

59 lines
1.7 KiB
C

/*
* Copyright (c) 2021 Todd C. Miller <Todd.Miller@sudo.ws>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#if defined(HAVE_STDINT_H)
# include <stdint.h>
#elif defined(HAVE_INTTYPES_H)
# include <inttypes.h>
#endif
#include "sudo_compat.h"
#include "sudo_debug.h"
#include "sudo_eventlog.h"
#include "sudo_iolog.h"
#include "sudo_util.h"
#include "iolog_json.h"
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
struct eventlog *evlog = NULL;
FILE *fp;
/* Operate in-memory, do not fclose or it will free() data. */
fp = fmemopen((void *)data, size, "r");
if (fp == NULL)
return 0;
/* Parsed contents of an log.json file are stored in evlog. */
if ((evlog = calloc(1, sizeof(*evlog))) == NULL)
return 0;
evlog->runuid = (uid_t)-1;
evlog->rungid = (gid_t)-1;
/* Try to parse buffer as a JSON-format I/O log info file. */
iolog_parse_loginfo_json(fp, "fuzz.json", evlog);
eventlog_free(evlog);
return 0;
}