/* @(#)xdr_array.c 2.1 88/07/29 4.0 RPCSRC */
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#if !defined(lint) && defined(SCCSIDS)
static char sccsid
[] = "@(#)xdr_array.c 1.10 87/08/11 Copyr 1984 Sun Micro";
* xdr_array.c, Generic XDR routines impelmentation.
* Copyright (C) 1984, Sun Microsystems, Inc.
* These are the "non-trivial" xdr primitives used to serialize and de-serialize
* arrays. See xdr.h for more info on the interface to xdr.
#define LASTUNSIGNED ((u_int)0-1)
* XDR an array of arbitrary elements
* *addrp is a pointer to the array, *sizep is the number of elements.
* If addrp is NULL (*sizep * elsize) bytes are allocated.
* elsize is the size (in bytes) of each element, and elproc is the
* xdr procedure to call to handle each element of the array.
xdr_array(xdrs
, addrp
, sizep
, maxsize
, elsize
, elproc
)
caddr_t
*addrp
; /* array pointer */
u_int
*sizep
; /* number of elements */
u_int maxsize
; /* max numberof elements */
u_int elsize
; /* size in bytes of each element */
xdrproc_t elproc
; /* xdr routine to handle each element */
register caddr_t target
= *addrp
;
register u_int c
; /* the actual element count */
register bool_t stat
= TRUE
;
/* like strings, arrays are really counted arrays */
if (! xdr_u_int(xdrs
, sizep
)) {
if ((c
> maxsize
) && (xdrs
->x_op
!= XDR_FREE
)) {
* if we are deserializing, we may need to allocate an array.
* We also save time by checking for a null array if we are freeing.
*addrp
= target
= mem_alloc(nodesize
);
"xdr_array: out of memory\n");
* now we xdr each element of array
for (i
= 0; (i
< c
) && stat
; i
++) {
stat
= (*elproc
)(xdrs
, target
, LASTUNSIGNED
);
* the array may need freeing
if (xdrs
->x_op
== XDR_FREE
) {
mem_free(*addrp
, nodesize
);
* XDR a fixed length array. Unlike variable-length arrays,
* the storage of fixed length arrays is static and unfreeable.
* > basep: base of the array
* > size: size of the array
* > elemsize: size of each element
* > xdr_elem: routine to XDR each element
xdr_vector(xdrs
, basep
, nelem
, elemsize
, xdr_elem
)
register xdrproc_t xdr_elem
;
for (i
= 0; i
< nelem
; i
++) {
if (! (*xdr_elem
)(xdrs
, elptr
, LASTUNSIGNED
)) {