diff options
Diffstat (limited to 'examples/aflpp_driver/aflpp_driver.c')
| -rw-r--r-- | examples/aflpp_driver/aflpp_driver.c | 40 |
1 files changed, 23 insertions, 17 deletions
diff --git a/examples/aflpp_driver/aflpp_driver.c b/examples/aflpp_driver/aflpp_driver.c index 8e0b554a..b764338e 100644 --- a/examples/aflpp_driver/aflpp_driver.c +++ b/examples/aflpp_driver/aflpp_driver.c @@ -106,7 +106,10 @@ If 1, close stdout at startup. If 2 close stderr; if 3 close both. #error "Support for your platform has not been implemented" #endif -int __afl_sharedmem_fuzzing = 0; +int __afl_sharedmem_fuzzing = 1; +extern unsigned int * __afl_fuzz_len; +extern unsigned char *__afl_fuzz_ptr; +// extern struct cmp_map *__afl_cmp_map; // libFuzzer interface is thin, so we don't include any libFuzzer headers. int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size); @@ -272,7 +275,6 @@ int main(int argc, char **argv) { // Do any other expensive one-time initialization here. uint8_t dummy_input[64] = {0}; - uint8_t buf[1024000]; memcpy(dummy_input, (void *)AFL_PERSISTENT, sizeof(AFL_PERSISTENT)); memcpy(dummy_input + 32, (void *)AFL_DEFER_FORKSVR, sizeof(AFL_DEFER_FORKSVR)); @@ -283,24 +285,16 @@ int main(int argc, char **argv) { printf("WARNING: using the deprecated call style `%s %d`\n", argv[0], N); else if (argc > 1) { - if (!getenv("AFL_DISABLE_LLVM_INSTRUMENTATION")) { - - __afl_manual_init(); - - } - + __afl_sharedmem_fuzzing = 0; + __afl_manual_init(); return ExecuteFilesOnyByOne(argc, argv); } assert(N > 0); - if (!getenv("AFL_DISABLE_LLVM_INSTRUMENTATION")) { - - fprintf(stderr, "performing manual init\n"); - __afl_manual_init(); - - } + // if (!getenv("AFL_DRIVER_DONT_DEFER")) + __afl_manual_init(); // Call LLVMFuzzerTestOneInput here so that coverage caused by initialization // on the first execution of LLVMFuzzerTestOneInput is ignored. @@ -309,13 +303,25 @@ int main(int argc, char **argv) { int num_runs = 0; while (__afl_persistent_loop(N)) { - ssize_t r = read(0, buf, sizeof(buf)); +#ifdef _DEBUG + fprintf(stderr, "CLIENT crc: %016llx len: %u\n", + hash64(__afl_fuzz_ptr, *__afl_fuzz_len, 0xa5b35705), + *__afl_fuzz_len); + fprintf(stderr, "RECV:"); + for (int i = 0; i < *__afl_fuzz_len; i++) + fprintf(stderr, "%02x", __afl_fuzz_ptr[i]); + fprintf(stderr, "\n"); +#endif + if (*__afl_fuzz_len) { + + num_runs++; + LLVMFuzzerTestOneInput(__afl_fuzz_ptr, *__afl_fuzz_len); - if (r > 0) { LLVMFuzzerTestOneInput(buf, r); } + } } - printf("%s: successfully executed input(s)\n", argv[0]); + printf("%s: successfully executed %d input(s)\n", argv[0], num_runs); } |