mirror of
https://github.com/AFLplusplus/AFLplusplus.git
synced 2025-06-07 15:51:32 +00:00
50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
/*
|
|
american fuzzy lop++ - LD_PRELOAD for fuzzing argv in binaries
|
|
------------------------------------------------------------
|
|
|
|
Copyright 2019-2024 Kjell Braden <afflux@pentabarf.de>
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at:
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
*/
|
|
|
|
#define _GNU_SOURCE /* for RTLD_NEXT */
|
|
#include <dlfcn.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include "argv-fuzz-inl.h"
|
|
|
|
int __libc_start_main(int (*main)(int, char **, char **), int argc, char **argv,
|
|
void (*init)(void), void (*fini)(void),
|
|
void (*rtld_fini)(void), void *stack_end) {
|
|
|
|
int (*orig)(int (*main)(int, char **, char **), int argc, char **argv,
|
|
void (*init)(void), void (*fini)(void), void (*rtld_fini)(void),
|
|
void *stack_end);
|
|
int sub_argc;
|
|
char **sub_argv;
|
|
|
|
(void)argc;
|
|
(void)argv;
|
|
|
|
orig = dlsym(RTLD_NEXT, __func__);
|
|
|
|
if (!orig) {
|
|
|
|
fprintf(stderr, "hook did not find original %s: %s\n", __func__, dlerror());
|
|
exit(EXIT_FAILURE);
|
|
|
|
}
|
|
|
|
sub_argv = afl_init_argv(&sub_argc);
|
|
|
|
return orig(main, sub_argc, sub_argv, init, fini, rtld_fini, stack_end);
|
|
|
|
}
|
|
|