1 files changed, 123 insertions, 0 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/rpc/xdr_array.c b/sys/cddl/contrib/opensolaris/uts/common/rpc/xdr_array.c
new file mode 100644
index 0000000..3711e53
--- /dev/null
+++ b/sys/cddl/contrib/opensolaris/uts/common/rpc/xdr_array.c
@@ -0,0 +1,123 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+/*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
+/*	  All Rights Reserved  	*/
+
+/*
+ * Portions of this source code were derived from Berkeley 4.3 BSD
+ * under license from the Regents of the University of California.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+/*
+ * xdr_array.c, Generic XDR routines impelmentation.
+ * 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.
+ */
+
+#include <sys/param.h>
+#include <sys/cmn_err.h>
+#include <sys/types.h>
+#include <sys/systm.h>
+
+#include <rpc/types.h>
+#include <rpc/xdr.h>
+
+#define	LASTUNSIGNED	((uint_t)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.
+ */
+bool_t
+xdr_array(XDR *xdrs, caddr_t *addrp, uint_t *sizep, const uint_t maxsize,
+	const uint_t elsize, const xdrproc_t elproc)
+{
+	uint_t i;
+	caddr_t target = *addrp;
+	uint_t c;  /* the actual element count */
+	bool_t stat = TRUE;
+	uint_t nodesize;
+
+	/* like strings, arrays are really counted arrays */
+	if (!xdr_u_int(xdrs, sizep)) {
+#ifdef DEBUG
+		printf("xdr_array: size FAILED\n");
+#endif
+		return (FALSE);
+	}
+	c = *sizep;
+	if ((c > maxsize || LASTUNSIGNED / elsize < c) &&
+	    xdrs->x_op != XDR_FREE) {
+#ifdef DEBUG
+		printf("xdr_array: bad size FAILED\n");
+#endif
+		return (FALSE);
+	}
+	nodesize = c * elsize;
+
+	/*
+	 * 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.
+	 */
+	if (target == NULL)
+		switch (xdrs->x_op) {
+		case XDR_DECODE:
+			if (c == 0)
+				return (TRUE);
+			*addrp = target = (char *)mem_alloc(nodesize);
+			bzero(target, nodesize);
+			break;
+
+		case XDR_FREE:
+			return (TRUE);
+
+		case XDR_ENCODE:
+			break;
+		}
+
+	/*
+	 * now we xdr each element of array
+	 */
+	for (i = 0; (i < c) && stat; i++) {
+		stat = (*elproc)(xdrs, target, LASTUNSIGNED);
+		target += elsize;
+	}
+
+	/*
+	 * the array may need freeing
+	 */
+	if (xdrs->x_op == XDR_FREE) {
+		mem_free(*addrp, nodesize);
+		*addrp = NULL;
+	}
+	return (stat);
+}