linux-kernel - Re: [PATCH 01/10] lib: introduce common method to convert hex digits

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1272682556.1648.101.camel@Joe-Laptop.home>
Date:	Fri, 30 Apr 2010 19:55:56 -0700
From:	Joe Perches <joe@...ches.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Andy Shevchenko <ext-andriy.shevchenko@...ia.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 01/10] lib: introduce common method to convert hex
 digits

On Fri, 2010-04-30 at 12:07 -0700, Andrew Morton wrote:
> I had to fiddle with it:
> - use tolower(), saving 3 bytes!

tolower could be done after the 0-9 case as well

int hex_to_bin(char ch)
{
	if ((ch >= '0') && (ch <= '9'))
		return ch - '0';
	ch = tolower(ch);
	if ((ch >= 'a') && (ch <= 'f'))
		return ch - 'a' + 10;
	return -1;
}


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/