On Thu, Jul 18, 2013 at 02:28:49PM +0800, Chen Gang wrote: > When "str >= end", necessary to reset 'str' to "end - 1", or the return > value will be larger than the real one, the callers which depend on the > return value, may cause memory overflow.
You do realize that snprintf(s, 1, "abc") should return 3, not 1? The goal off snprintf() is _not_ just to truncate the output; return value tells how much should the buffer had been to fit the whole thing. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
