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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)
51 #include <sys/param.h>
52 #ifdef AFS_LINUX20_ENV
55 #define bzero(A,C) memset((A), 0, (C))
58 #include <sys/systm.h>
66 #define LASTUNSIGNED ((u_int)0-1)
70 * XDR an array of arbitrary elements
71 * *addrp is a pointer to the array, *sizep is the number of elements.
72 * If addrp is NULL (*sizep * elsize) bytes are allocated.
73 * elsize is the size (in bytes) of each element, and elproc is the
74 * xdr procedure to call to handle each element of the array.
77 caddr_t *addrp; * array pointer *
78 u_int *sizep; * number of elements *
79 u_int maxsize; * max numberof elements *
80 u_int elsize; * size in bytes of each element *
81 xdrproc_t elproc; * xdr routine to handle each element *
85 xdr_arrayN(XDR * xdrs, caddr_t * addrp, u_int * sizep, u_int maxsize,
86 u_int elsize, xdrproc_t elproc)
89 caddr_t target = *addrp;
90 u_int c; /* the actual element count */
94 i = ((~0) >> 1) / elsize;
98 /* like strings, arrays are really counted arrays */
99 if (!xdr_u_int(xdrs, sizep)) {
103 if ((c > maxsize) && (xdrs->x_op != XDR_FREE)) {
106 nodesize = c * elsize;
109 * if we are deserializing, we may need to allocate an array.
110 * We also save time by checking for a null array if we are freeing.
113 switch (xdrs->x_op) {
117 *addrp = target = (caddr_t) osi_alloc(nodesize);
118 if (target == NULL) {
121 memset(target, 0, (u_int) nodesize);
132 * now we xdr each element of array
134 for (i = 0; (i < c) && stat; i++) {
135 stat = (*elproc) (xdrs, target, LASTUNSIGNED);
140 * the array may need freeing
142 if (xdrs->x_op == XDR_FREE) {
143 osi_free(*addrp, nodesize);