wireguard-tools/src/fuzz/setconf.c

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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2018-2020 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
*/
#include <stdio.h>
#undef stderr
#define stderr stdin
#define RUNSTATEDIR "/var/empty"
#include "../curve25519.c"
#define parse_allowedips parse_allowedips_ipc
#include "../ipc.c"
#undef parse_allowedips
#include "../encoding.c"
#include "../config.c"
static FILE *hacked_fopen(const char *pathname, const char *mode);
#define fopen hacked_fopen
#include "../setconf.c"
#undef fopen
#undef stderr
#include <string.h>
#include <stdlib.h>
#include <assert.h>
const char *__asan_default_options()
{
return "verbosity=1";
}
const char *PROG_NAME = "wg";
struct hacked_pointers {
const char *data;
size_t data_len;
};
static FILE *hacked_fopen(const char *pathname, const char *mode)
{
struct hacked_pointers *h = (struct hacked_pointers *)strtoul(pathname, NULL, 10);
return fmemopen((char *)h->data, h->data_len, "r");
}
int LLVMFuzzerTestOneInput(const char *data, size_t data_len)
{
char strptr[32];
char *argv[3] = { "setconf", "wg0", strptr };
struct hacked_pointers h = { data, data_len };
snprintf(strptr, sizeof(strptr), "%lu", (unsigned long)&h);
setconf_main(3, argv);
return 0;
}