tcp_tansport: websocket layer modifies in-buffer data (for masked transports). This fix reverts the data back to original rather then making a copy.
Closes
@@ -208,7 +208,17 @@ static int _ws_write(esp_transport_handle_t t, int opcode, int mask_flag, const
if (len == 0) {
return 0;
}
- return esp_transport_write(ws->parent, buffer, len, timeout_ms);
+
+ int ret = esp_transport_write(ws->parent, buffer, len, timeout_ms);
+ // in case of masked transport we have to revert back to the original data, as ws layer
+ // does not create its own copy of data to be sent
+ if (mask_flag) {
+ mask = &ws_header[header_len-4];
+ for (i = 0; i < len; ++i) {
+ buffer[i] = (buffer[i] ^ mask[i % 4]);
+ }
+ }
+ return ret;
}
static int ws_write(esp_transport_handle_t t, const char *b, int len, int timeout_ms)
