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29 #include <afsconfig.h>
30 #include <afs/param.h>
33 #if defined(AFS_OBSD44_ENV) && defined(KERNEL) && !defined(UKERNEL)
34 /* XXX osi_alloc, please find and fix */
35 #include "osi_machdep.h"
41 * xdr_array.c, Generic XDR routines impelmentation.
43 * Copyright (C) 1984, Sun Microsystems, Inc.
45 * These are the "non-trivial" xdr primitives used to serialize and de-serialize
46 * arrays. See xdr.h for more info on the interface to xdr.
49 #if defined(KERNEL) && !defined(UKERNEL)
50 #if !defined(AFS_LINUX26_ENV)
51 #include <sys/param.h>
53 #ifdef AFS_LINUX20_ENV
56 #include <sys/systm.h>
63 #define LASTUNSIGNED ((u_int)0-1)
67 * XDR an array of arbitrary elements
68 * *addrp is a pointer to the array, *sizep is the number of elements.
69 * If addrp is NULL (*sizep * elsize) bytes are allocated.
70 * elsize is the size (in bytes) of each element, and elproc is the
71 * xdr procedure to call to handle each element of the array.
74 caddr_t *addrp; * array pointer *
75 u_int *sizep; * number of elements *
76 u_int maxsize; * max numberof elements *
77 u_int elsize; * size in bytes of each element *
78 xdrproc_t elproc; * xdr routine to handle each element *
82 xdr_arrayN(XDR * xdrs, caddr_t * addrp, u_int * sizep, u_int maxsize,
83 u_int elsize, xdrproc_t elproc)
86 caddr_t target = *addrp;
87 u_int c; /* the actual element count */
91 i = ((~0) >> 1) / elsize;
95 /* like strings, arrays are really counted arrays */
96 if (!xdr_u_int(xdrs, sizep)) {
100 if ((c > maxsize) && (xdrs->x_op != XDR_FREE)) {
103 nodesize = c * elsize;
106 * if we are deserializing, we may need to allocate an array.
107 * We also save time by checking for a null array if we are freeing.
110 switch (xdrs->x_op) {
114 *addrp = target = (caddr_t) osi_alloc(nodesize);
115 if (target == NULL) {
118 memset(target, 0, (u_int) nodesize);
129 * now we xdr each element of array
131 for (i = 0; (i < c) && stat; i++) {
132 stat = (*elproc) (xdrs, target, LASTUNSIGNED);
137 * the array may need freeing
139 if (xdrs->x_op == XDR_FREE) {
140 osi_free(*addrp, nodesize);