xref: /third_party/nghttp2/fuzz/fuzz_target.cc (revision 2c593315) 
1#include <nghttp2/nghttp2.h>
2
3namespace {
4int on_frame_recv_callback(nghttp2_session *session, const nghttp2_frame *frame,
5                           void *user_data) {
6  return 0;
7}
8} // namespace
9
10namespace {
11int on_begin_headers_callback(nghttp2_session *session,
12                              const nghttp2_frame *frame, void *user_data) {
13  return 0;
14}
15} // namespace
16
17namespace {
18int on_header_callback2(nghttp2_session *session, const nghttp2_frame *frame,
19                        nghttp2_rcbuf *name, nghttp2_rcbuf *value,
20                        uint8_t flags, void *user_data) {
21  return 0;
22}
23} // namespace
24
25namespace {
26int before_frame_send_callback(nghttp2_session *session,
27                               const nghttp2_frame *frame, void *user_data) {
28  return 0;
29}
30} // namespace
31
32namespace {
33int on_frame_send_callback(nghttp2_session *session, const nghttp2_frame *frame,
34                           void *user_data) {
35  return 0;
36}
37} // namespace
38
39namespace {
40void send_pending(nghttp2_session *session) {
41  for (;;) {
42    const uint8_t *data;
43    auto n = nghttp2_session_mem_send(session, &data);
44    if (n == 0) {
45      return;
46    }
47  }
48}
49} // namespace
50
51extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
52  nghttp2_session *session;
53  nghttp2_session_callbacks *callbacks;
54
55  nghttp2_session_callbacks_new(&callbacks);
56  nghttp2_session_callbacks_set_on_frame_recv_callback(callbacks,
57                                                       on_frame_recv_callback);
58  nghttp2_session_callbacks_set_on_begin_headers_callback(
59      callbacks, on_begin_headers_callback);
60  nghttp2_session_callbacks_set_on_header_callback2(callbacks,
61                                                    on_header_callback2);
62  nghttp2_session_callbacks_set_before_frame_send_callback(
63      callbacks, before_frame_send_callback);
64  nghttp2_session_callbacks_set_on_frame_send_callback(callbacks,
65                                                       on_frame_send_callback);
66
67  nghttp2_session_server_new(&session, callbacks, nullptr);
68  nghttp2_session_callbacks_del(callbacks);
69
70  nghttp2_settings_entry iv{NGHTTP2_SETTINGS_MAX_CONCURRENT_STREAMS, 100};
71  nghttp2_submit_settings(session, NGHTTP2_FLAG_NONE, &iv, 1);
72  send_pending(session);
73  nghttp2_session_mem_recv(session, data, size);
74  send_pending(session);
75
76  nghttp2_session_del(session);
77
78  return 0;
79}
80