curl 2022-10-26 (cd95ee9f)

Code extracted from:

    https://github.com/curl/curl.git

at commit cd95ee9f771361acf241629d2fe5507e308082a2 (curl-7_86_0).

1 files changed, 69 insertions, 0 deletions

diff --git a/lib/ws.h b/lib/ws.h
new file mode 100644
index 0000000..341242e
--- /dev/null
+++ b/lib/ws.h
@@ -0,0 +1,69 @@
+#ifndef HEADER_CURL_WS_H
+#define HEADER_CURL_WS_H
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at https://curl.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ * SPDX-License-Identifier: curl
+ *
+ ***************************************************************************/
+#include "curl_setup.h"
+
+#ifdef USE_WEBSOCKETS
+
+#ifdef USE_HYPER
+#define REQTYPE void
+#else
+#define REQTYPE struct dynbuf
+#endif
+
+/* this is the largest single fragment size we support */
+#define MAX_WS_SIZE 65535
+
+/* part of 'struct HTTP', when used in the 'struct SingleRequest' in the
+   Curl_easy struct */
+struct websocket {
+  bool contfragment; /* set TRUE if the previous fragment sent was not final */
+  unsigned char mask[4]; /* 32 bit mask for this connection */
+  struct Curl_easy *data; /* used for write callback handling */
+  struct dynbuf buf;
+  size_t usedbuf; /* number of leading bytes in 'buf' the most recent complete
+                     websocket frame uses */
+  struct curl_ws_frame frame; /* the struct used for frame state */
+  curl_off_t oleft; /* outstanding number of payload bytes left from the
+                       server */
+  curl_off_t stillbuffer; /* number of bytes left in the buffer to deliver in
+                             the next curl_ws_recv() call */
+  char *stillb; /* the stillbuffer pending bytes are here */
+  curl_off_t sleft; /* outstanding number of payload bytes left to send */
+  unsigned int xori; /* xor index */
+};
+
+CURLcode Curl_ws_request(struct Curl_easy *data, REQTYPE *req);
+CURLcode Curl_ws_accept(struct Curl_easy *data);
+
+size_t Curl_ws_writecb(char *buffer, size_t size, size_t nitems, void *userp);
+void Curl_ws_done(struct Curl_easy *data);
+
+#else
+#define Curl_ws_request(x,y) CURLE_OK
+#define Curl_ws_done(x) Curl_nop_stmt
+#endif
+
+#endif /* HEADER_CURL_WS_H */