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dummy mem test

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This commit is contained in:
van Hauser 2020-08-06 18:44:12 +02:00
parent e7f2770275
commit 08bcaa135f
1 changed files with 8 additions and 0 deletions
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8
examples/aflpp_driver/aflpp_driver.c
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@ -56,6 +56,7 @@ If 1, close stdout at startup. If 2 close stderr; if 3 close both.
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/mman.h>
#include "config.h"
@ -101,6 +102,7 @@ If 1, close stdout at startup. If 2 close stderr; if 3 close both.
int __afl_sharedmem_fuzzing = 1;
extern unsigned int * __afl_fuzz_len;
extern unsigned char *__afl_fuzz_ptr;
extern unsigned char *__afl_area_ptr;
// libFuzzer interface is thin, so we don't include any libFuzzer headers.
int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
@ -240,6 +242,10 @@ static int ExecuteFilesOnyByOne(int argc, char **argv) {
int main(int argc, char **argv) {
uint8_t *dummy = (uint8_t*) mmap((void *)0x1000,250000, PROT_READ | PROT_WRITE,
MAP_FIXED_NOREPLACE | MAP_SHARED | MAP_ANONYMOUS, -1, 0);
__afl_area_ptr = dummy;
printf(
"======================= INFO =========================\n"
"This binary is built for AFL-fuzz.\n"
@ -275,6 +281,7 @@ int main(int argc, char **argv) {
// if (!getenv("AFL_DRIVER_DONT_DEFER")) {
__afl_sharedmem_fuzzing = 0;
munmap(dummy, 256000);
__afl_manual_init();
// }
return ExecuteFilesOnyByOne(argc, argv);
@ -285,6 +292,7 @@ int main(int argc, char **argv) {
assert(N > 0);
// if (!getenv("AFL_DRIVER_DONT_DEFER"))
munmap(dummy, 256000);
__afl_manual_init();
// Call LLVMFuzzerTestOneInput here so that coverage caused by initialization