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libevent: Fuzzing Coverage Expansion #3 (#11459) 

Hi! This pull request makes some changes to the previous pull request
https://github.com/google/oss-fuzz/pull/11377. In detail, all **printf**
statements were replaced with assertions.
@DavidKorczynski please check when you have a time.

Fyi @azat.
This commit is contained in:
viktoriia-lsg 2024-01-08 17:52:42 +02:00 committed by GitHub
parent 76053ede93
commit bad21fdd8f
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1 changed files with 7 additions and 18 deletions
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25
projects/libevent/bufferevent_fuzzer.cc
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@ -10,6 +10,7 @@ See the License for the specific language governing permissions and
limitations under the License.
*/
#include <assert.h>
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
@ -59,9 +60,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
}
bev1 = pair[0];
bev2 = pair[1];
if (!bufferevent_pair_get_partner(bev1)) {
printf("Bufferevent partner is not found\n");
}
assert(bufferevent_pair_get_partner(bev1) != NULL);
} else {
bev1 = bufferevent_socket_new(base, -1, options1);
bev2 = bufferevent_socket_new(base, -1, options2);
@ -92,15 +91,11 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
}
if (bufferevent_priority_set(bev3, options2) == 0) {
if (bufferevent_get_priority(bev3) != options2) {
printf("Priority level %d is not applied\n", options2);
}
assert(bufferevent_get_priority(bev3) == options2);
}
/*set rate limits*/
if (bufferevent_set_rate_limit(bev3, NULL) == -1) {
printf("NULL rate-limit is not set\n");
}
assert(bufferevent_set_rate_limit(bev3, NULL) != -1);
static struct timeval cfg_tick = {static_cast<__time_t>(int1),
static_cast<__suseconds_t>(int2)};
conn_bucket_cfg = ev_token_bucket_cfg_new(int1, int2, int3, int4, &cfg_tick);
@ -109,9 +104,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
}
bev_rate_group = bufferevent_rate_limit_group_new(base, conn_bucket_cfg);
if (bufferevent_add_to_rate_limit_group(bev4, bev_rate_group) == -1) {
printf("Bufferevent is not added to a rate-limit group\n");
}
assert(bufferevent_add_to_rate_limit_group(bev4, bev_rate_group) != -1);
/*write and read from buffer events*/
bufferevent_write(bev3, s1.c_str(), s1.size());
@ -135,12 +128,8 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
bufferevent_getwatermark(bev4, EV_WRITE, NULL, &int4);
}
if (int1 != int3) {
printf("Low-watermark %zu is not applied\n", int1);
}
if (int2 != int4) {
printf("High-watermark %zu is not applied\n", int2);
}
assert(int1 == int3);
assert(int2 == int4);
/*clean up*/
cleanup: