[666] in linux-security and linux-alert archive
Re: [linux-security] good character, bad character
daemon@ATHENA.MIT.EDU (Lars Wirzenius)
Tue Apr 9 13:54:27 1996
From: Lars Wirzenius <liw@iki.fi>
To: linux-security@tarsier.cv.nrao.edu
In-reply-to: Your message of "Fri, 05 Apr 1996 07:02:31 MDT."
<199604051302.HAA16126@manifold.algebra.com>
Date: Sun, 07 Apr 1996 20:51:01 +0300
Igor Chudov @ home:
> #define GOOD_CHAR( c, table ) ((table)[c])
This is probably not on topic for the list, but in machines that have
signed characters, you should never use a plain char as an index unless
you're really sure the character is non-negative. Otherwise cast it to
unsigned char or do something else to fix it.
--
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Lars Wirzenius <wirzeniu@cs.helsinki.fi> <wirzeniu@kruuna.helsinki.fi>
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