The integral datatypes used in the system calls are int
,
unsigned int
, long
, unsigned long
,
mode_t
, and time_t
.
int
, unsigned int
, mode_t
and time_t
are
implemented as 32 bit values in this protocol.
long
and unsigned long
are implemented as 64 bit types.
See Limits, for corresponding MIN and MAX values (similar to those in limits.h) to allow range checking on host and target.
time_t
datatypes are defined as seconds since the Epoch.
All integral datatypes transferred as part of a memory read or write of a
structured datatype e.g. a struct stat
have to be given in big endian
byte order.