1 /*********************************************************************
2 * RPC for the Windows NT Operating System
3 * 1993 by Martin F. Gergeleit
4 * Users may use, copy or modify Sun RPC for the Windows NT Operating
5 * System according to the Sun copyright below.
7 * RPC for the Windows NT Operating System COMES WITH ABSOLUTELY NO
8 * WARRANTY, NOR WILL I BE LIABLE FOR ANY DAMAGES INCURRED FROM THE
9 * USE OF. USE ENTIRELY AT YOUR OWN RISK!!!
10 *********************************************************************/
12 /* @(#)xdr_array.c 2.1 88/07/29 4.0 RPCSRC */
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41 #if !defined(lint) && defined(SCCSIDS)
42 static char sccsid[] = "@(#)xdr_array.c 1.10 87/08/11 Copyr 1984 Sun Micro";
46 * xdr_array.c, Generic XDR routines impelmentation.
48 * Copyright (C) 1984, Sun Microsystems, Inc.
50 * These are the "non-trivial" xdr primitives used to serialize and de-serialize
51 * arrays. See xdr.h for more info on the interface to xdr.
56 #include <rpc/types.h>
59 #define LASTUNSIGNED ((u_int)0-1)
63 * XDR an array of arbitrary elements
64 * *addrp is a pointer to the array, *sizep is the number of elements.
65 * If addrp is NULL (*sizep * elsize) bytes are allocated.
66 * elsize is the size (in bytes) of each element, and elproc is the
67 * xdr procedure to call to handle each element of the array.
70 xdr_array(xdrs, addrp, sizep, maxsize, elsize, elproc)
72 caddr_t *addrp; /* array pointer */
73 u_int *sizep; /* number of elements */
74 u_int maxsize; /* max numberof elements */
75 u_int elsize; /* size in bytes of each element */
76 xdrproc_t elproc; /* xdr routine to handle each element */
79 register caddr_t target = *addrp;
80 register u_int c; /* the actual element count */
81 register bool_t stat = TRUE;
82 register u_int nodesize;
84 /* like strings, arrays are really counted arrays */
85 if (! xdr_u_int(xdrs, sizep)) {
89 if ((c > maxsize) && (xdrs->x_op != XDR_FREE)) {
92 nodesize = c * elsize;
95 * if we are deserializing, we may need to allocate an array.
96 * We also save time by checking for a null array if we are freeing.
103 *addrp = target = mem_alloc(nodesize);
104 if (target == NULL) {
108 (void) fprintf(stderr,
110 "xdr_array: out of memory\n");
113 bzero(target, nodesize);
121 * now we xdr each element of array
123 for (i = 0; (i < c) && stat; i++) {
124 stat = (*elproc)(xdrs, target, LASTUNSIGNED);
129 * the array may need freeing
131 if (xdrs->x_op == XDR_FREE) {
132 mem_free(*addrp, nodesize);
141 * XDR a fixed length array. Unlike variable-length arrays,
142 * the storage of fixed length arrays is static and unfreeable.
143 * > basep: base of the array
144 * > size: size of the array
145 * > elemsize: size of each element
146 * > xdr_elem: routine to XDR each element
149 xdr_vector(xdrs, basep, nelem, elemsize, xdr_elem)
151 register char *basep;
152 register u_int nelem;
153 register u_int elemsize;
154 register xdrproc_t xdr_elem;
157 register char *elptr;
160 for (i = 0; i < nelem; i++) {
161 if (! (*xdr_elem)(xdrs, elptr, LASTUNSIGNED)) {