RE: sysfs output without newlines

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Joe Perches
> Sent: 29 August 2020 21:34
...
> > On 8/29/20 9:23 PM, Joe Perches wrote:
> > > While doing an investigation for a possible treewide conversion of
> > > sysfs output using sprintf/snprintf/scnprintf, I discovered
> > > several instances of sysfs output without terminating newlines.
> > >
> > > It seems likely all of these should have newline terminations
> > > or have the \n\r termination changed to a single newline.
> >
> > I think that it could break badly written scripts in rare cases.
> 
> Maybe.
> 
> Is sysfs output a nominally unchangeable api like seq_?
> Dunno.  seq_ output is extended all the time.
> 
> I think whitespace isn't generally considered part of
> sscanf type input content awareness.

The shell will remove trailing '\n' (but not '\r') from:
	foo=$(cat bar)
So shell scripts are unlikely to be affected.

	David

-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)




[Index of Archives]     [Linux Memonry Technology]     [Linux USB Devel]     [Linux Media]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux