[inbox] Re: [Full-Disclosure] RE: Linux (in)security
tedu at stanford.edu
Mon Oct 27 00:29:56 GMT 2003
On Mon, 27 Oct 2003, Brett Hutley wrote:
> char buf;
> const char *str1 = "OVER";
> const char *str2 = "FLOW!!!!!";
> sprintf(buf, "%s%s", str1, str2);
> Admittedly a contrived example. The best way to handle this type of
> stuff is to provide "safe" functions - like a sprintfn() that takes the
> maximum size of the buffer to write into as an argument. This function
> is reasonably tricky to write however. Consider the following example:
erm, snprintf? the reasonably tricky to implement part is kinda true,
there are/were many implementations which didn't do the right thing, but i
think that's improved.
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