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From: Kay Sievers <kay.sievers@vrfy.org>
To: linux-hotplug@vger.kernel.org
Subject: Re: udev patch for attributes with trailing spaces in the values
Date: Sat, 31 Jan 2004 01:35:42 +0000	[thread overview]
Message-ID: <20040131013542.GA20937@vrfy.org> (raw)
In-Reply-To: <200401301014.51387.meaton@vasco.com>

On Fri, Jan 30, 2004 at 10:14:51AM +1000, Mark Eaton wrote:
> The following patch strips off spaces that are often contained at the end of 
> SYSFS_ attributes. (ie lots of printers etc do this).
> I'm not sure if this should actually be added to udev but I would be curious 
> to hear peoples thoughts as I find it extremly annoying and pointless to have 
> to hexdump the sysfs values to check if there are trailing spaces to write 
> the various rules.

You may use udevinfo that prints the ready formated attribute for you
or use the pattern matching if you don't want to count the number of
spaces. :)



> diff -Nru udev-015-orig/namedev.c udev-015/namedev.c
> --- udev-015-orig/namedev.c	2004-01-23 09:28:36.000000000 +1000
> +++ udev-015/namedev.c	2004-01-30 08:59:10.000000000 +1000
> @@ -427,7 +427,10 @@
>  label_found:
>  	c = tmpattr->value + strlen(tmpattr->value)-1;
>  	if (*c = '\n')
> -		*c = 0x00;
> +		*c-- = 0x00;

Huh, what if the value is only the '\n'?

> +	while (*c = ' ')
> +		*c-- = 0x00;


thanks,
Kay


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  reply	other threads:[~2004-01-31  1:35 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-01-30  0:14 udev patch for attributes with trailing spaces in the values Mark Eaton
2004-01-31  1:35 ` Kay Sievers [this message]
2004-02-17  1:25 ` Darren Salt

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