Date: Wed, 12 Feb 1997 18:04:59 +1100 (EST) From: "Daniel O'Callaghan" <danny@panda.hilink.com.au> To: hackers@freebsd.org Subject: strlen() question Message-ID: <Pine.BSF.3.91.970212175317.427s-100000@panda.hilink.com.au>
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Below is the code for strlen() from libc. It is extremely simple, and
fast. Is it really safe to assume that strlen() will never exceed process
memory bounds before striking a '\0'? Or should there be a strnlen()
function in libc for checking the length of suspicious strings?
Danny
size_t
strlen(str)
const char *str;
{
register const char *s;
for (s = str; *s; ++s);
return(s - str);
}
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