The line read from the #GIOChannel, including the line terminator. This data should be freed with g_free() when no longer needed. This is a nul-terminated string. If a @length of zero is returned, this will be %NULL instead.
location to store position of line terminator, or %NULL
the status of the operation.
GException on failure.
Reads a line, including the terminating character(s), from a #GIOChannel into a newly-allocated string. @str_return will contain allocated memory if the return is %G_IO_STATUS_NORMAL.