[klibc] bunch of small fixes

[Oleg Verych]

Nigel Cunningham @ On Sat, Mar 29, 2008 at 2:18 AM:

>  > > Not being a shell guru, I'm not sure what the simplest way is to get
>  > > 0xedc302e99856e50c into the start of a file. Can you help there?
>  > >
>  >
>  > It depends on what byte order you want to use (it should match the byte
>  > order of the other fields), but for littleendian, you can do:
>  >
>  > printf '\x0c\xe5\x56\x98\xe9\x02\xc3\xed' > file
>  >
>  > or
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>  > echo -ne '\x0c\xe5\x56\x98\xe9\x02\xc3\xed' > file

(note, that this one is not portable bashizm wrt e.g. [d]ash)

>  > What I mean with "match the byte order of the other fields" - if you
>  > have no fields which are host-byte-order-dependent, just pick a specific
>  > byte sequence (like the above one) and stick to it.  If you *have*
>  > fields which are host-byte-order-dependent, then you probably want to
>  > have the magic be endian-sensitive too,
|
> > unless you have a separate byte order field.

(important detail)

>  Regarding endianness, I don't think that's an issue here, since the
>  normal case is for the computer writing the data to be the one reading
>  it back.

Anyway be careful about any other than by byte access (i.e word,
double word, etc.), when implementing comparison of the signature.
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