[fpc-pascal] Translating c records

[Michael Van Canneyt]

On Wed, 24 Apr 2019, Rainer Stratmann wrote:

> struct sockaddr_ll {
>     unsigned short sll_family;
>     unsigned short sll_protocol;
>     int            sll_ifindex;
>     unsigned short sll_hatype;
>     unsigned char  sll_pkttype;
>     unsigned char  sll_halen;
>     unsigned char  sll_addr[8]; 
> };
>
>
> type
> sockaddr_ll = record
>  sll_family : word;
>  sll_protocol : word;
>  sll_ifindex : integer;
>  sll_hatype : word;
>  sll_pkttype : byte;
>  sll_halen : byte;
>  sll_addr: array[ 0 .. 7 ] of byte;
> end;
>
> Is this correct?

if you add 
{$PPACKRECORDS C}

And make integer a longint (that is always 4 bytes, regardless of the mode
you're compiling in), then it should be OK.

You can always compare with

#include <stdio.h>
#include <yourcheader.h>

int main () {
   printf("%d\n",sizeof(struct sockaddr_l));
}

and in pascal
writeln(sizeof(sockaddr_ll));

Michael.