/* eventcb for bufferevent. For the purpose of simplicity and readability of the example program, we omitted the certificate and peer verification. After SSL/TLS handshake is over, initialize nghttp2 library session, and send client connection header. Then send HTTP request. */ static void eventcb(struct bufferevent *bev, short events, void *ptr) { http2_session_data *session_data = (http2_session_data*)ptr; if(events & BEV_EVENT_CONNECTED) { int fd = bufferevent_getfd(bev); int val = 1; fprintf(stderr, "Connected\n"); setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val)); initialize_nghttp2_session(session_data); send_client_connection_header(session_data); submit_request(session_data); if(session_send(session_data) != 0) { delete_http2_session_data(session_data); } return; } if(events & BEV_EVENT_EOF) { warnx("Disconnected from the remote host"); } else if(events & BEV_EVENT_ERROR) { warnx("Network error"); } else if(events & BEV_EVENT_TIMEOUT) { warnx("Timeout"); } delete_http2_session_data(session_data); }
/* eventcb for bufferevent. For the purpose of simplicity and readability of the example program, we omitted the certificate and peer verification. After SSL/TLS handshake is over, initialize nghttp2 library session, and send client connection header. Then send HTTP request. */ static void eventcb(struct bufferevent *bev, short events, void *ptr) { http2_session_data *session_data = (http2_session_data *)ptr; if (events & BEV_EVENT_CONNECTED) { int fd = bufferevent_getfd(bev); int val = 1; const unsigned char *alpn = NULL; unsigned int alpnlen = 0; SSL *ssl; fprintf(stderr, "Connected\n"); ssl = bufferevent_openssl_get_ssl(session_data->bev); #ifndef OPENSSL_NO_NEXTPROTONEG SSL_get0_next_proto_negotiated(ssl, &alpn, &alpnlen); #endif /* !OPENSSL_NO_NEXTPROTONEG */ #if OPENSSL_VERSION_NUMBER >= 0x10002000L if (alpn == NULL) { SSL_get0_alpn_selected(ssl, &alpn, &alpnlen); } #endif /* OPENSSL_VERSION_NUMBER >= 0x10002000L */ if (alpn == NULL || alpnlen != 2 || memcmp("h2", alpn, 2) != 0) { fprintf(stderr, "h2 is not negotiated\n"); delete_http2_session_data(session_data); return; } setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val)); initialize_nghttp2_session(session_data); send_client_connection_header(session_data); submit_request(session_data); if (session_send(session_data) != 0) { delete_http2_session_data(session_data); } return; } if (events & BEV_EVENT_EOF) { warnx("Disconnected from the remote host"); } else if (events & BEV_EVENT_ERROR) { warnx("Network error"); } else if (events & BEV_EVENT_TIMEOUT) { warnx("Timeout"); } delete_http2_session_data(session_data); }