43fa6fe319
identifier namespace by renaming non standard functions and variables such that they have a leading underscore. The library will use those names internally. Weak aliases are used to provide the original names to the API. This is only the first part of this change. It is most of the functions which are implemented in C for all NetBSD ports. Subsequent changes are to add the same support to the remaining C files, to assembly files, and to the automagically generated assembly source used for system calls. When all of the above is done, ports with weak alias support should add a definition for __weak_alias to <sys/cdefs.h>.
169 lines
4.5 KiB
C
169 lines
4.5 KiB
C
/* $NetBSD: xdr_array.c,v 1.6 1997/07/21 14:08:43 jtc Exp $ */
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/*
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* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
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* unrestricted use provided that this legend is included on all tape
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* media and as a part of the software program in whole or part. Users
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* may copy or modify Sun RPC without charge, but are not authorized
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* to license or distribute it to anyone else except as part of a product or
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* program developed by the user.
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*
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* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
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* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
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*
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* Sun RPC is provided with no support and without any obligation on the
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* part of Sun Microsystems, Inc. to assist in its use, correction,
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* modification or enhancement.
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*
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* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
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* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
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* OR ANY PART THEREOF.
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*
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* In no event will Sun Microsystems, Inc. be liable for any lost revenue
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* or profits or other special, indirect and consequential damages, even if
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* Sun has been advised of the possibility of such damages.
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*
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* Sun Microsystems, Inc.
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* 2550 Garcia Avenue
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* Mountain View, California 94043
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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#if 0
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static char *sccsid = "@(#)xdr_array.c 1.10 87/08/11 Copyr 1984 Sun Micro";
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static char *sccsid = "@(#)xdr_array.c 2.1 88/07/29 4.0 RPCSRC";
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#else
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__RCSID("$NetBSD: xdr_array.c,v 1.6 1997/07/21 14:08:43 jtc Exp $");
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#endif
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#endif
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/*
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* xdr_array.c, Generic XDR routines impelmentation.
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*
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* Copyright (C) 1984, Sun Microsystems, Inc.
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*
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* These are the "non-trivial" xdr primitives used to serialize and de-serialize
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* arrays. See xdr.h for more info on the interface to xdr.
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*/
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#include "namespace.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <rpc/types.h>
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#include <rpc/xdr.h>
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#ifdef __weak_alias
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__weak_alias(xdr_array,_xdr_array);
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__weak_alias(xdr_vector,_xdr_vector);
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#endif
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/*
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* XDR an array of arbitrary elements
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* *addrp is a pointer to the array, *sizep is the number of elements.
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* If addrp is NULL (*sizep * elsize) bytes are allocated.
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* elsize is the size (in bytes) of each element, and elproc is the
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* xdr procedure to call to handle each element of the array.
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*/
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bool_t
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xdr_array(xdrs, addrp, sizep, maxsize, elsize, elproc)
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register XDR *xdrs;
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caddr_t *addrp; /* array pointer */
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u_int *sizep; /* number of elements */
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u_int maxsize; /* max numberof elements */
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u_int elsize; /* size in bytes of each element */
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xdrproc_t elproc; /* xdr routine to handle each element */
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{
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register u_int i;
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register caddr_t target = *addrp;
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register u_int c; /* the actual element count */
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register bool_t stat = TRUE;
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register u_int nodesize;
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/* like strings, arrays are really counted arrays */
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if (! xdr_u_int(xdrs, sizep)) {
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return (FALSE);
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}
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c = *sizep;
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if ((c > maxsize) && (xdrs->x_op != XDR_FREE)) {
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return (FALSE);
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}
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nodesize = c * elsize;
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/*
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* if we are deserializing, we may need to allocate an array.
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* We also save time by checking for a null array if we are freeing.
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*/
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if (target == NULL)
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switch (xdrs->x_op) {
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case XDR_DECODE:
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if (c == 0)
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return (TRUE);
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*addrp = target = mem_alloc(nodesize);
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if (target == NULL) {
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(void) fprintf(stderr,
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"xdr_array: out of memory\n");
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return (FALSE);
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}
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memset(target, 0, nodesize);
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break;
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case XDR_FREE:
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return (TRUE);
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case XDR_ENCODE:
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break;
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}
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/*
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* now we xdr each element of array
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*/
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for (i = 0; (i < c) && stat; i++) {
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stat = (*elproc)(xdrs, target);
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target += elsize;
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}
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/*
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* the array may need freeing
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*/
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if (xdrs->x_op == XDR_FREE) {
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mem_free(*addrp, nodesize);
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*addrp = NULL;
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}
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return (stat);
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}
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/*
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* xdr_vector():
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*
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* XDR a fixed length array. Unlike variable-length arrays,
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* the storage of fixed length arrays is static and unfreeable.
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* > basep: base of the array
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* > size: size of the array
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* > elemsize: size of each element
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* > xdr_elem: routine to XDR each element
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*/
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bool_t
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xdr_vector(xdrs, basep, nelem, elemsize, xdr_elem)
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register XDR *xdrs;
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register char *basep;
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register u_int nelem;
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register u_int elemsize;
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register xdrproc_t xdr_elem;
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{
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register u_int i;
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register char *elptr;
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elptr = basep;
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for (i = 0; i < nelem; i++) {
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if (! (*xdr_elem)(xdrs, elptr)) {
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return(FALSE);
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}
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elptr += elemsize;
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}
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return(TRUE);
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}
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