From owner-freebsd-security  Thu Jul 15 17:17: 7 1999
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To: Brett Glass <brett@lariat.org>
Subject: Re: OpenBSD's strlcpy(3) and strlcat(3) 
Cc: Sheldon Hearn <sheldonh@uunet.co.za>,
	Paul Hart <hart@iserver.com>, freebsd-security@FreeBSD.ORG
In-reply-to: Your message of "Thu, 15 Jul 1999 18:05:06 MDT."
		<4.2.0.58.19990715180119.04723d20@localhost> 
References: <4.2.0.58.19990715180119.04723d20@localhost>  <Your message of "Thu, 15 Jul 1999 17:47:03 CST." <4.2.0.58.19990715174241.045f0550@localhost> 
Date: Thu, 15 Jul 1999 18:16:15 -0600
From: Warner Losh <imp@village.org>
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In message <4.2.0.58.19990715180119.04723d20@localhost> Brett Glass writes:
: Or, even better, ALWAYS return the shortfall. The programmer can then discard
: the return value if he's really willing to ignore it (perhaps at his peril).

That's what strl* are defined to do.  They always return the length of
the string that would have resulted, had it not been truncated.  That
way it can either be used or ignored as the programmer sees fit.  I
don't see much value in computing return-value - size as another,
incompatible argument.

Warner


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