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fuzz-main: allow the number of runs to be overridden

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This is useful when debugging.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2021-03-05 16:01:50 +01:00
parent 8df3f44c90
commit c1c9510c9b
1 changed files with 14 additions and 3 deletions
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17
src/fuzz/fuzz-main.c
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@ -1,9 +1,11 @@
/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include "alloc-util.h"
#include "log.h"
#include "fileio.h"
#include "fuzz.h"
#include "log.h"
#include "parse-util.h"
#include "string-util.h"
#include "tests.h"
/* This is a test driver for the systemd fuzzers that provides main function
@ -15,13 +17,22 @@
/* This one was borrowed from
* https://github.com/google/oss-fuzz/blob/646fca1b506b056db3a60d32c4a1a7398f171c94/infra/base-images/base-runner/bad_build_check#L19
*/
#define MIN_NUMBER_OF_RUNS 4
#define NUMBER_OF_RUNS 4
int main(int argc, char **argv) {
int r;
test_setup_logging(LOG_DEBUG);
unsigned number_of_runs = NUMBER_OF_RUNS;
const char *v = getenv("SYSTEMD_FUZZ_RUNS");
if (!isempty(v)) {
r = safe_atou(v, &number_of_runs);
if (r < 0)
return log_error_errno(r, "Failed to parse SYSTEMD_FUZZ_RUNS=%s: %m", v);
}
for (int i = 1; i < argc; i++) {
_cleanup_free_ char *buf = NULL;
size_t size;
@ -35,7 +46,7 @@ int main(int argc, char **argv) {
}
printf("%s... ", name);
fflush(stdout);
for (int j = 0; j < MIN_NUMBER_OF_RUNS; j++)
for (unsigned j = 0; j < number_of_runs; j++)
if (LLVMFuzzerTestOneInput((uint8_t*)buf, size) == EXIT_TEST_SKIP)
return EXIT_TEST_SKIP;
printf("ok\n");