/* real_escape_string(string) */
static VALUE real_escape_string(VALUE obj, VALUE str)
{
MYSQL* m = GetHandler(obj);
VALUE ret;
Check_Type(str, T_STRING);
ret = rb_str_new(0, (RSTRING(str)->len)*2+1);
RSTRING(ret)->len = mysql_real_escape_string(m, RSTRING(ret)->ptr, RSTRING(str)->ptr, RSTRING(str)->len);
return ret;
}