xdr_simple(3N)xdr_simple(3N)NAME
xdr_simple, xdr_bool, xdr_char, xdr_double, xdr_enum, xdr_float,
xdr_free, xdr_hyper, xdr_int, xdr_long, xdr_longlong_t, xdr_quadruple,
xdr_short, xdr_u_char, xdr_u_hyper, xdr_u_int, xdr_u_long, xdr_u_long‐
long_t, xdr_u_short, xdr_void - library routines for external data rep‐
resentation
SYNOPSISDESCRIPTION
XDR library routines allow C programmers to describe simple data struc‐
tures in a machine-independent fashion. Protocols such as remote pro‐
cedure calls (RPC) use these routines to describe the format of the
data.
These routines require the creation of XDR streams (see xdr_cre‐
ate(3N)).
Routines
See rpc(3N) for the definition of the data structure. Note that any
buffers passed to the XDR routines must be properly aligned. It is sug‐
gested that malloc(3C) be used to allocate these buffers or that the
programmer insure that the buffer address is divisible evenly by four.
translates between booleans (C integers)
and their external representations. When encoding data, this
filter produces values of either or This routine returns if it
succeeds, otherwise.
translates between C characters
and their external representations. This routine returns if it
succeeds, otherwise. Note: encoded characters are not packed,
and occupy 4 bytes each. For arrays of characters, it is worth‐
while to consider or (see xdr_complex(3N)).
translates between C
precision numbers and their external representations. This rou‐
tine returns if it succeeds, otherwise.
translates between C
(actually integers) and their external representations. This
routine returns if it succeeds, otherwise.
translates between C
and their external representations. This routine returns if it
succeeds, otherwise.
Generic freeing routine.
The first argument is the XDR routine for the object being
freed. The second argument is a pointer to the object itself.
Note: the pointer passed to this routine is not freed, but what
it points to is freed (recursively, depending on the XDR rou‐
tine).
translates between ANSI C
integers and their external representations. This routine
returns if it succeeds, otherwise.
translates between C integers
and their external representations. This routine returns if it
succeeds, otherwise.
translates between C
integers and their external representations. This routine
returns if it succeeds, otherwise.
translates between ANSI C
integers and their external representations. This routine
returns if it succeeds, otherwise. This routine is identical to
translates between IEEE
quadruple precision floating point numbers and their external
representations. This routine returns if it succeeds, other‐
wise.
translates between C
integers and their external representations. This routine
returns if it succeeds, otherwise.
translates between
C characters and their external representations. This routine
returns if it succeeds, otherwise.
translates between unsigned ANSI C
integers and their external representations. This routine
returns if it succeeds, otherwise.
A filter primitive that translates between a C
integer and its external representation. This routine returns
if it succeeds, otherwise.
translates between C
integers and their external representations. This routine
returns if it succeeds, otherwise.
translates between unsigned ANSI C
integers and their external representations. This routine
returns if it succeeds, otherwise. This routine is identical to
translates between C
integers and their external representations. This routine
returns if it succeeds, otherwise.
This routine always returns
It may be passed to RPC routines that require a function parame‐
ter, where nothing is to be done.
MULTITHREAD USAGE
Thread Safe: Yes
Cancel Safe: Yes
Fork Safe: No
Async-cancel Safe: No
Async-signal Safe: No
These functions can be called safely in a multithreaded environment.
They may be cancellation points in that they call functions that are
cancel points.
In a multithreaded environment, these functions are not safe to be
called by a child process after and before These functions should not
be called by a multithreaded application that support asynchronous can‐
cellation or asynchronous signals.
SEE ALSOmalloc(3C), rpc(3N), xdr_admin(3N), xdr_complex(3N), xdr_create(3N).
xdr_simple(3N)
