Re: how to retrieve a guint32

[Teto <mattator () gmail com>]

Thank you both for these comprehensive answers :)

On Mon, Oct 24, 2011 at 7:27 PM, Guy Harris <guy () alum mit edu> wrote:
> On Oct 24, 2011, at 8:49 AM, Teto wrote:
>
> > tvb_get_letoh24 / tvb_get_letohl look more straightforward but I don't
> > understand how they transform the number.
> > letoh stands for "local to host" ?
>
> "Little-endian to host", and the "l" stands for "long".
>
> The "'l' stands for 'long'" is a historical artifact; in 4.2BSD (and probably earlier), there were "ntohl()" and 
> "htonl()" routines to convert a C "long", which, at the time, was 32 bits long on 16-bit and 32-bit platforms, 
> between "network byte order" (big-endian) and "host byte order".  There were also "ntohs()" and "htons()" to convert 
> a C "short", which was 16 bits on those platforms.
>
> > why the "24" ?
>
> 24 bits.
>
> > I guess the last "l"
> > in  tvb_get_letohl is for little endian ?
>
> Nope, "long".
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