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+/***************************************************************************
+ * nsock_test_timers.c -- A test program to exercise the nsock timer *
+ * routines. *
+ * *
+ ***********************IMPORTANT NSOCK LICENSE TERMS***********************
+ *
+ * The nsock parallel socket event library is (C) 1999-2023 Nmap Software LLC
+ * This library is free software; you may redistribute and/or modify it under
+ * the terms of the GNU General Public License as published by the Free Software
+ * Foundation; Version 2. This guarantees your right to use, modify, and
+ * redistribute this software under certain conditions. If this license is
+ * unacceptable to you, Nmap Software LLC may be willing to sell alternative
+ * licenses (contact sales@nmap.com ).
+ *
+ * As a special exception to the GPL terms, Nmap Software LLC grants permission
+ * to link the code of this program with any version of the OpenSSL library
+ * which is distributed under a license identical to that listed in the included
+ * docs/licenses/OpenSSL.txt file, and distribute linked combinations including
+ * the two. You must obey the GNU GPL in all respects for all of the code used
+ * other than OpenSSL. If you modify this file, you may extend this exception to
+ * your version of the file, but you are not obligated to do so.
+ *
+ * If you received these files with a written license agreement stating terms
+ * other than the (GPL) terms above, then that alternative license agreement
+ * takes precedence over this comment.
+ *
+ * Source is provided to this software because we believe users have a right to
+ * know exactly what a program is going to do before they run it. This also
+ * allows you to audit the software for security holes.
+ *
+ * Source code also allows you to port Nmap to new platforms, fix bugs, and add
+ * new features. You are highly encouraged to send your changes to the
+ * dev@nmap.org mailing list for possible incorporation into the main
+ * distribution. By sending these changes to Fyodor or one of the Insecure.Org
+ * development mailing lists, or checking them into the Nmap source code
+ * repository, it is understood (unless you specify otherwise) that you are
+ * offering the Nmap Project (Nmap Software LLC) the unlimited, non-exclusive
+ * right to reuse, modify, and relicense the code. Nmap will always be available
+ * Open Source, but this is important because the inability to relicense code
+ * has caused devastating problems for other Free Software projects (such as KDE
+ * and NASM). We also occasionally relicense the code to third parties as
+ * discussed above. If you wish to specify special license conditions of your
+ * contributions, just say so when you send them.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License v2.0 for more
+ * details (http://www.gnu.org/licenses/gpl-2.0.html).
+ *
+ ***************************************************************************/
+
+
+#include "nsock.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <time.h>
+#include <assert.h>
+
+nsock_event_id ev_ids[2048];
+
+int num_ids = 0;
+
+nsock_event_id request_timer(nsock_pool nsp, nsock_ev_handler handler, int timeout_msecs, void *userdata) {
+ nsock_event_id id;
+
+ id = nsock_timer_create(nsp, handler, timeout_msecs, userdata);
+ printf("%ld: Created timer ID %li for %d ms from now\n", time(NULL), id, timeout_msecs);
+
+ return id;
+
+}
+
+int try_cancel_timer(nsock_pool nsp, int idx, int notify) {
+ int res;
+
+ printf("%ld:Attempting to cancel id %li (idx %d) %s notify.\n", time(NULL), ev_ids[idx], idx, ((notify) ? "WITH" : "WITHOUT"));
+ res = nsock_event_cancel(nsp, ev_ids[idx], notify);
+ printf("Kill of %li %s\n", ev_ids[idx], (res == 0) ? "FAILED" : "SUCCEEDED");
+ return res;
+}
+
+void timer_handler(nsock_pool nsp, nsock_event nse, void *mydata) {
+ enum nse_status status = nse_status(nse);
+ enum nse_type type = nse_type(nse);
+ int rnd, rnd2;
+
+ printf("%ld:timer_handler: Received callback of type %s; status %s; id %li\n", time(NULL), nse_type2str(type), nse_status2str(status), nse_id(nse));
+
+ rnd = rand() % num_ids;
+ rnd2 = rand() % 3;
+
+ if (num_ids > (sizeof(ev_ids) / sizeof(nsock_event_id)) - 3) {
+ printf("\n\nSUCCEEDED DUE TO CREATING ENOUGH EVENTS THAT IT WAS GOING TO OVERFLOW MY BUFFER :)\n\n");
+ exit(0);
+ }
+
+ if (status == NSE_STATUS_SUCCESS) {
+ switch (rnd2) {
+ case 0:
+ /* do nothing */
+ /* Actually I think I'll create two timers :) */
+ ev_ids[num_ids++] = request_timer(nsp, timer_handler, rand() % 3000, NULL);
+ ev_ids[num_ids++] = request_timer(nsp, timer_handler, rand() % 3000, NULL);
+ break;
+ case 1:
+ /* Kill another id (which may or may not be active */
+ try_cancel_timer(nsp, rnd, rand() % 2);
+ break;
+ case 2:
+ /* Create a new timer */
+ ev_ids[num_ids++] = request_timer(nsp, timer_handler, rand() % 3000, NULL);
+ break;
+ default:
+ assert(0);
+ }
+ }
+}
+
+int main(int argc, char *argv[]) {
+ nsock_pool nsp;
+ enum nsock_loopstatus loopret;
+ int num_loops = 0;
+
+ srand(time(NULL));
+ /* OK, we start with creating a p00l */
+ if ((nsp = nsock_pool_new(NULL)) == NULL) {
+ fprintf(stderr, "Failed to create new pool. QUITTING.\n");
+ exit(1);
+ }
+
+ ev_ids[num_ids++] = request_timer(nsp, timer_handler, 1800, NULL);
+ ev_ids[num_ids++] = request_timer(nsp, timer_handler, 800, NULL);
+ ev_ids[num_ids++] = request_timer(nsp, timer_handler, 1300, NULL);
+ ev_ids[num_ids++] = request_timer(nsp, timer_handler, 0, NULL);
+ ev_ids[num_ids++] = request_timer(nsp, timer_handler, 100, NULL);
+
+ /* Now lets get this party started right! */
+ while (num_loops++ < 5) {
+ loopret = nsock_loop(nsp, 1500);
+ if (loopret == NSOCK_LOOP_TIMEOUT)
+ printf("Finished l00p #%d due to l00p timeout :) I may do another\n", num_loops);
+ else if (loopret == NSOCK_LOOP_NOEVENTS) {
+ printf("SUCCESS -- NO EVENTS LEFT\n");
+ exit(0);
+ } else {
+ printf("nsock_loop FAILED!\n");
+ exit(1);
+ }
+ }
+ printf("Trying to kill my msp!\n");
+ nsock_pool_delete(nsp);
+ printf("SUCCESS -- completed %d l00ps.\n", num_loops);
+
+ return 0;
+}