--- /dev/null
+/*
+ * Copyright (c) 2006,2011-2014 Apple Inc. All Rights Reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+/*
+ * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
+ * unrestricted use provided that this legend is included on all tape
+ * media and as a part of the software program in whole or part. Users
+ * may copy or modify Sun RPC without charge, but are not authorized
+ * to license or distribute it to anyone else except as part of a product or
+ * program developed by the user.
+ *
+ * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
+ * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
+ *
+ * Sun RPC is provided with no support and without any obligation on the
+ * part of Sun Microsystems, Inc. to assist in its use, correction,
+ * modification or enhancement.
+ *
+ * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
+ * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
+ * OR ANY PART THEREOF.
+ *
+ * In no event will Sun Microsystems, Inc. be liable for any lost revenue
+ * or profits or other special, indirect and consequential damages, even if
+ * Sun has been advised of the possibility of such damages.
+ *
+ * Sun Microsystems, Inc.
+ * 2550 Garcia Avenue
+ * Mountain View, California 94043
+ */
+/*
+ * xdr_sizeof.c
+ *
+ * Copyright 1990 Sun Microsystems, Inc.
+ *
+ * General purpose routine to see how much space something will use
+ * when serialized using XDR.
+ */
+#include <stdlib.h>
+
+#include "sec_xdr.h"
+
+/* ARGSUSED */
+static bool_t
+sec_x_putlong(xdrs, intp)
+ XDR *xdrs;
+ int *intp;
+{
+ xdrs->x_handy += BYTES_PER_XDR_UNIT;
+ return (TRUE);
+}
+
+/* ARGSUSED */
+static bool_t
+sec_x_putbytes(xdrs, bp, len)
+ XDR *xdrs;
+ char *bp;
+ u_int len;
+{
+ xdrs->x_handy += len;
+ return (TRUE);
+}
+
+static u_int
+sec_x_getpostn(xdrs)
+ XDR *xdrs;
+{
+ return (xdrs->x_handy);
+}
+
+/* ARGSUSED */
+static bool_t
+sec_x_setpostn(xdrs, pos)
+ XDR *xdrs;
+ u_int pos;
+{
+ /* This is not allowed */
+ return (FALSE);
+}
+
+static int32_t *
+sec_x_inline(xdrs, len)
+ XDR *xdrs;
+ u_int len;
+{
+ intptr_t llen;
+
+ if (len == 0) {
+ return (NULL);
+ }
+
+ if (xdrs->x_op != XDR_ENCODE) {
+ return (NULL);
+ }
+
+ llen = len;
+
+ if (llen < (intptr_t)xdrs->x_base) {
+ /* x_private was already allocated */
+ xdrs->x_handy += llen;
+ return ((int32_t *) xdrs->x_private);
+ } else {
+ /* Free the earlier space and allocate new area */
+ if (xdrs->x_private)
+ free(xdrs->x_private);
+ if ((xdrs->x_private = (caddr_t) malloc(len)) == NULL) {
+ xdrs->x_base = 0;
+ return (NULL);
+ }
+ xdrs->x_base = (caddr_t)llen;
+ xdrs->x_handy += llen;
+ return ((int32_t *) xdrs->x_private);
+ }
+}
+
+static int
+sec_harmless()
+{
+ /* Always return FALSE/NULL, as the case may be */
+ return (0);
+}
+
+static void
+sec_x_destroy(xdrs)
+ XDR *xdrs;
+{
+ xdrs->x_handy = 0;
+ xdrs->x_base = 0;
+ if (xdrs->x_private) {
+ free(xdrs->x_private);
+ xdrs->x_private = NULL;
+ }
+ return;
+}
+
+u_int
+sec_xdr_sizeof_in(func, data)
+ xdrproc_t func;
+ void *data;
+{
+ XDR x;
+ struct xdr_ops ops;
+ bool_t stat;
+ /* to stop ANSI-C compiler from complaining */
+#ifdef __LP64__
+ typedef bool_t (* dummyfunc1)(XDR *, int *);
+#else
+ typedef bool_t (* dummyfunc1)(XDR *, long *);
+#endif
+ typedef bool_t (* dummyfunc2)(XDR *, caddr_t, u_int);
+
+ ops.x_putlong = sec_x_putlong;
+ ops.x_putbytes = sec_x_putbytes;
+ ops.x_inline = sec_x_inline;
+ ops.x_getpostn = sec_x_getpostn;
+ ops.x_setpostn = sec_x_setpostn;
+ ops.x_destroy = sec_x_destroy;
+
+ /* the other harmless ones */
+ ops.x_getlong = (dummyfunc1) sec_harmless;
+ ops.x_getbytes = (dummyfunc2) sec_harmless;
+
+ x.x_op = XDR_ENCODE;
+ x.x_ops = &ops;
+ x.x_handy = 0;
+ x.x_public = (caddr_t) NULL; // explicitly unsetting to avoid confusion with custom allocator
+ x.x_private = (caddr_t) NULL;
+ x.x_base = (caddr_t) 0;
+
+ sec_xdr_arena_allocator_t size_alloc;
+ sec_xdr_arena_init_size_alloc(&size_alloc, &x);
+ stat = func(&x, data, 0);
+ if (x.x_private)
+ free(x.x_private);
+ return (stat == TRUE ? (unsigned) x.x_handy: 0);
+}
+
+u_int
+sec_xdr_sizeof_out(copy, size, func, data)
+ const void *copy;
+ u_int size;
+ xdrproc_t func;
+ void **data;
+{
+ XDR x;
+ bool_t stat;
+
+ sec_xdrmem_create(&x, (void *)copy, size, XDR_DECODE);
+
+ sec_xdr_arena_allocator_t size_alloc;
+ sec_xdr_arena_init_size_alloc(&size_alloc, &x);
+ stat = func(&x, data, 0);
+ if (size_alloc.data)
+ free(size_alloc.data);
+ return (stat == TRUE ? (u_int)size_alloc.offset : 0);
+}
projects / apple / security.git / blobdiff