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".
