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From: Bean <bean123ch@gmail.com>
To: The development of GNU GRUB <grub-devel@gnu.org>
Subject: Re: Imminent bugfix release (1.97.1)
Date: Tue, 10 Nov 2009 20:37:50 +0800	[thread overview]
Message-ID: <ca0f59980911100437w7b6f8bcdi5519bf199496be7d@mail.gmail.com> (raw)
In-Reply-To: <ca0f59980911100105tc4f2acau4ef52f62600230d@mail.gmail.com>

Hi,

Oh, I just come up with a better way to do this:

typedef char grub_password_t[1024];

int
grub_auth_strcmp (const grub_password_t s1, const grub_password_t s2)
{
 char r1 = 0;
 char r2 = 0;
 char *p;
 int i, c;

 p = &r1;
 c = 0;
 for (i = 0; i < sizeof (grub_password_t); i++, s1++, s2++)
   {
     *p | = (*s1 ^ *s2);
     if ((int) *s1 == c)
       {
	 p = &r2;
	 c = 0x100;
       }
   }

 return (r1 != 0);
}

The condition (int) *s1 == c would be true exactly once.

-- 
Bean

My repository: https://launchpad.net/burg
Document: https://help.ubuntu.com/community/Burg



  reply	other threads:[~2009-11-10 12:37 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-11-09  1:04 Imminent bugfix release (1.97.1) Robert Millan
2009-11-09  1:27 ` Robert Millan
2009-11-09  2:08 ` Jordan Uggla
2009-11-09 14:15   ` Robert Millan
2009-11-09 13:33 ` Bean
2009-11-09 13:50   ` Vladimir 'phcoder' Serbinenko
2009-11-09 14:18     ` Robert Millan
2009-11-09 14:21     ` Bean
2009-11-09 14:34       ` Vladimir 'phcoder' Serbinenko
2009-11-09 17:46         ` Duboucher Thomas
2009-11-09 18:10           ` Robert Millan
2009-11-09 18:15             ` Vladimir 'phcoder' Serbinenko
2009-11-09 18:25               ` Robert Millan
2009-11-09 18:36                 ` Bean
2009-11-09 18:46                   ` Vladimir 'phcoder' Serbinenko
2009-11-09 18:49                     ` Bean
2009-11-09 21:13                       ` Duboucher Thomas
2009-11-09 21:34                         ` Vladimir 'phcoder' Serbinenko
2009-11-09 21:43                           ` Duboucher Thomas
2009-11-09 22:06                             ` Robert Millan
2009-11-09 22:46                               ` Duboucher Thomas
2009-11-09 23:09                                 ` Darron Black
2009-11-09 23:50                                   ` richardvoigt
2009-11-09 23:56                                     ` Darron Black
2009-11-09 23:46                                 ` richardvoigt
2009-11-10  5:39                           ` Bean
2009-11-10  8:28                             ` Bean
2009-11-10  8:46                               ` Bean
2009-11-10  8:52                                 ` Bean
2009-11-10  9:05                                   ` Bean
2009-11-10 12:37                                     ` Bean [this message]
2009-11-10 14:25                                       ` Duboucher Thomas
2009-11-10 14:47                                         ` Bean
2009-11-10 17:43                                           ` Duboucher Thomas
2009-11-10 19:01                                             ` Vladimir 'phcoder' Serbinenko
2009-11-10 19:04                                           ` Vladimir 'phcoder' Serbinenko
2009-11-10 21:29                                             ` Duboucher Thomas
2009-11-10 15:27                                         ` richardvoigt
2009-11-10 17:38                                           ` Duboucher Thomas

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