Re: Fw: Re: oops in choose_configuration()

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

 



On Tue, 7 Mar 2006, Chuck Ebbert wrote:
> 
> [2] The snprintf() and print_modalias() calls don't check for errors and
> thus don't return -ENOMEM when the buffer does fill up.  Shouldn't they
> do that instead of returning a truncated env string?

They try to act like the standard says "snprintf()" should act.

And yes, the standard says to return the number of bytes you _would_ have
written, had not the buffer been to small.

(Of course, giving a negative buffer length is not ok, and the kernel 
version checking for that is a kernel extension on the standard. In the 
standard, the buffer size is a "size_t", which doesn't have the notion of 
"negative", since it's an unsigned type. The kernel version is just being 
safe and nice).

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

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux