[lwip-devel] [bug #43110] call getpeername() before listen() will cause a error.

[hanhui]

Follow-up Comment #4, bug #43110 (project lwip):

  Simon please see netconn_accept()

  This function first check fatal error:

  err = conn->last_err;
  if (ERR_IS_FATAL(err)) {
    /* don't recv on fatal errors: this might block the application task
       waiting on acceptmbox forever! */
    return err;
  }

  because getpeername() set this err = ERR_CONN;

  listen() is OK now, bug netconn_accept will fail.

  Han.hui

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