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@@ -0,0 +1,59 @@
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+// Copyright (c) 2004-2012 Sergey Lyubka
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+// This file is a part of mongoose project, http://github.com/valenok/mongoose
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+
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+#include <stdio.h>
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+#include <string.h>
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+#include "mongoose.h"
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+
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+static void *callback(enum mg_event event, struct mg_connection *conn) {
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+ if (event == MG_WEBSOCKET_READY) {
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+ static const char *hello = "hello from mongoose! waiting for message ...";
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+ char frame[2];
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+
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+ // Prepare websocket frame.
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+ frame[0] = 0x81; // text frame
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+ frame[1] = strlen(hello); // length is < 126
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+
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+ // Write frame and a text message
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+ mg_write(conn, frame, sizeof(frame));
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+ mg_write(conn, hello, strlen(hello));
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+ return "";
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+ } else if (event == MG_WEBSOCKET_MESSAGE) {
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+ unsigned char buf[500], reply[500];
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+ int len, msg_len, i, mask_len, xor;
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+
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+ // Read message from the client and echo it back
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+ if ((len = mg_read(conn, buf, sizeof(buf))) > 8) {
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+ msg_len = buf[1] & 127;
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+ mask_len = (buf[1] & 128) ? 4 : 0;
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+ if (msg_len < 126) {
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+ reply[0] = 0x81; // text, FIN set
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+ reply[1] = msg_len;
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+ for (i = 0; i < msg_len; i++) {
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+ xor = mask_len == 0 ? 0 : buf[2 + (i % 4)];
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+ reply[i + 2] = buf[i + 2 + mask_len] ^ xor;
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+ }
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+ mg_write(conn, reply, 2 + msg_len);
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+ }
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+ }
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+
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+ return ""; // Return non-NULL: stop websocket conversation
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+ } else {
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+ return NULL;
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+ }
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+}
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+
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+int main(void) {
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+ struct mg_context *ctx;
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+ const char *options[] = {
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+ "listening_ports", "8080",
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+ "document_root", "websocket_html_root",
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+ NULL
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+ };
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+
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+ ctx = mg_start(&callback, NULL, options);
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+ getchar(); // Wait until user hits "enter"
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+ mg_stop(ctx);
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+
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+ return 0;
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+}
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Sergey Lyubka