[llvm] r276052 - [libFuzzer] extend the messages printed by afl_driver
Kostya Serebryany via llvm-commits
llvm-commits at lists.llvm.org
Tue Jul 19 16:18:28 PDT 2016
Author: kcc
Date: Tue Jul 19 18:18:28 2016
New Revision: 276052
URL: http://llvm.org/viewvc/llvm-project?rev=276052&view=rev
Log:
[libFuzzer] extend the messages printed by afl_driver
Modified:
llvm/trunk/lib/Fuzzer/afl/afl_driver.cpp
Modified: llvm/trunk/lib/Fuzzer/afl/afl_driver.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Fuzzer/afl/afl_driver.cpp?rev=276052&r1=276051&r2=276052&view=diff
==============================================================================
--- llvm/trunk/lib/Fuzzer/afl/afl_driver.cpp (original)
+++ llvm/trunk/lib/Fuzzer/afl/afl_driver.cpp Tue Jul 19 18:18:28 2016
@@ -239,11 +239,16 @@ static void maybe_duplicate_stderr() {
}
int main(int argc, char **argv) {
- fprintf(stderr, "Running in AFl-fuzz mode\nUsage:\n"
- "afl-fuzz [afl-flags] %s [N] "
+ fprintf(stderr, "======================= INFO =========================\n"
+ "This binary is built for AFL-fuzz.\n"
+ "To run the target function on a single input execute this:\n"
+ " %s < INPUT_FILE\n"
+ "To run the fuzzing execute this:\n"
+ " afl-fuzz [afl-flags] %s [N] "
"-- run N fuzzing iterations before "
- "re-spawning the process (default: 1000)\n",
- argv[0]);
+ "re-spawning the process (default: 1000)\n"
+ "======================================================\n",
+ argv[0], argv[0]);
if (LLVMFuzzerInitialize)
LLVMFuzzerInitialize(&argc, &argv);
// Do any other expensive one-time initialization here.
@@ -258,6 +263,7 @@ int main(int argc, char **argv) {
N = atoi(argv[1]);
assert(N > 0);
time_t unit_time_secs;
+ int num_runs = 0;
while (__afl_persistent_loop(N)) {
ssize_t n_read = read(0, AflInputBuf, kMaxAflInputSize);
if (n_read > 0) {
@@ -270,6 +276,7 @@ int main(int argc, char **argv) {
CHECK_ERROR(gettimeofday(&unit_start_time, NULL) == 0,
"Calling gettimeofday failed");
+ num_runs++;
LLVMFuzzerTestOneInput(copy, n_read);
struct timeval unit_stop_time;
@@ -284,4 +291,5 @@ int main(int argc, char **argv) {
delete[] copy;
}
}
+ fprintf(stderr, "%s: successfully executed %d input(s)\n", argv[0], num_runs);
}
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