GNU bug report logs - #13135
Loss of data while copying

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Message #33 received at 13135 <at> debbugs.gnu.org (full text, mbox):

From: Jim Meyering <jim <at> meyering.net>
To: Pádraig Brady <P <at> draigBrady.com>
Cc: John Reiser <jreiser <at> bitwagon.com>, 13135 <at> debbugs.gnu.org
Subject: Re: bug#13135: Loss of data while copying
Date: Sat, 15 Dec 2012 05:16:09 +0100

Pádraig Brady wrote:
...
> I think I'll move the warning to count=
> as it's mostly an issue when that is specified.

Good idea.

>>   @item of=@var{file}
>>   @opindex of
>> @@ -8397,6 +8398,9 @@ may return early if a full block is not available.
>>   When that happens, continue calling @code{read} to fill the remainder
>>   of the block.
>>   This flag can be used only with @code{iflag}.
>> +If the input is a pipe and argument @samp{count=} also is specified,
>> +then probably @samp{iflag=fullblock} should be used
>> +in order to prevent surprises caused by short reads.
>
> How about this instead?

Looks good.  Thanks.

> diff --git a/doc/coreutils.texi b/doc/coreutils.texi
...
> @@ -8397,6 +8402,10 @@ may return early if a full block is not available.
>  When that happens, continue calling @code{read} to fill the remainder
>  of the block.
>  This flag can be used only with @code{iflag}.
> +This flag is useful with pipes for example
> +as they may return short reads. I that case,

s/I/In/

...

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