Mongoose TCP tunnel

PUBLISHED_FROM=f03b963aaec02574e47c28ee8033551440b94f2d

examples/tun/Makefile

@@ -0,0 +1,3 @@
+PROG = tun
+MODULE_CFLAGS =
+include ../examples.mk

examples/tun/tun.c

@@ -0,0 +1,66 @@
+#include "mongoose.h"
+
+static const char *s_local_port = ":8001";
+static const char *s_dispatcher = "ws://localhost:8000";
+static const char *s_auth = "foo:bar";
+
+void ev_handler(struct mg_connection *nc, int ev, void *ev_data) {
+  struct http_message *hm = (struct http_message *) ev_data;
+  switch (ev) {
+    case MG_EV_ACCEPT:
+      fprintf(stderr, "HTTP accept. nc=%p\n", nc);
+      break;
+    case MG_EV_RECV:
+      fprintf(stderr, "recvd: %d bytes\n", *(int *) ev_data);
+      break;
+    case MG_EV_HTTP_REQUEST:
+      fprintf(stderr, "HTTP got request. nc=%p path=%.*s\n", nc,
+              (int) hm->uri.len, hm->uri.p);
+      mg_http_send_error(nc, 200, "OK");
+      break;
+    case MG_EV_CLOSE:
+      fprintf(stderr, "HTTP close\n");
+    default:
+      break;
+  }
+}
+
+int main(int argc, char **argv) {
+  struct mg_mgr mgr;
+  struct mg_connection *nc;
+  int i;
+
+  mg_mgr_init(&mgr, NULL);
+
+  /* Parse command line arguments */
+  for (i = 1; i < argc; i++) {
+    if (strcmp(argv[i], "-D") == 0) {
+      mgr.hexdump_file = argv[++i];
+    } else if (strcmp(argv[i], "-p") == 0) {
+      s_local_port = argv[++i];
+    } else if (strcmp(argv[i], "-d") == 0) {
+      s_dispatcher = argv[++i];
+    } else if (strcmp(argv[i], "-u") == 0) {
+      s_auth = argv[++i];
+    }
+  }
+
+  if ((nc = mg_tuna_bind(&mgr, ev_handler, s_dispatcher, s_auth)) == NULL) {
+    fprintf(stderr, "Cannot create tunneled listening socket on [%s]\n",
+            s_dispatcher);
+    exit(EXIT_FAILURE);
+  }
+  mg_set_protocol_http_websocket(nc);
+  fprintf(stderr, "Tun listener: %p\n", nc);
+
+  if ((nc = mg_bind(&mgr, s_local_port, ev_handler)) == NULL) {
+    fprintf(stderr, "Cannot bind to local port %s\n", s_local_port);
+    exit(EXIT_FAILURE);
+  }
+  mg_set_protocol_http_websocket(nc);
+  fprintf(stderr, "Local listening connection: %p\n", nc);
+
+  for (;;) {
+    mg_mgr_poll(&mgr, 1000);
+  }
+}