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-rw-r--r--cpukit/librpc/src/xdr/xdr_sizeof.c163
1 files changed, 163 insertions, 0 deletions
diff --git a/cpukit/librpc/src/xdr/xdr_sizeof.c b/cpukit/librpc/src/xdr/xdr_sizeof.c
index e69de29bb2..5a4c1a78dc 100644
--- a/cpukit/librpc/src/xdr/xdr_sizeof.c
+++ b/cpukit/librpc/src/xdr/xdr_sizeof.c
@@ -0,0 +1,163 @@
+/*
+ * 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 <rpc/types.h>
+#include <rpc/xdr.h>
+#include <sys/types.h>
+#include <stdlib.h>
+
+/* ARGSUSED */
+static bool_t
+x_putlong(xdrs, longp)
+ XDR *xdrs;
+ long *longp;
+{
+ xdrs->x_handy += BYTES_PER_XDR_UNIT;
+ return (TRUE);
+}
+
+/* ARGSUSED */
+static bool_t
+x_putbytes(xdrs, bp, len)
+ XDR *xdrs;
+ char *bp;
+ int len;
+{
+ xdrs->x_handy += len;
+ return (TRUE);
+}
+
+static u_int
+x_getpostn(xdrs)
+ XDR *xdrs;
+{
+ return (xdrs->x_handy);
+}
+
+/* ARGSUSED */
+static bool_t
+x_setpostn(xdrs, pos)
+ XDR *xdrs;
+ u_int pos;
+{
+ /* This is not allowed */
+ return (FALSE);
+}
+
+static int32_t *
+x_inline(xdrs, len)
+ XDR *xdrs;
+ long len;
+{
+ if (len == 0) {
+ return (NULL);
+ }
+ if (xdrs->x_op != XDR_ENCODE) {
+ return (NULL);
+ }
+ if (len < (long) xdrs->x_base) {
+ /* x_private was already allocated */
+ xdrs->x_handy += len;
+ 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) len;
+ xdrs->x_handy += len;
+ return ((int32_t *) xdrs->x_private);
+ }
+}
+
+static int
+harmless()
+{
+ /* Always return FALSE/NULL, as the case may be */
+ return (0);
+}
+
+static void
+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;
+}
+
+unsigned long
+xdr_sizeof(func, data)
+ xdrproc_t func;
+ void *data;
+{
+ XDR x;
+ struct xdr_ops ops;
+ bool_t stat;
+ /* to stop ANSI-C compiler from complaining */
+ typedef bool_t (* dummyfunc1)(XDR *, long *);
+ typedef bool_t (* dummyfunc2)(XDR *, caddr_t, u_int);
+
+ ops.x_putlong = x_putlong;
+ ops.x_putbytes = x_putbytes;
+ ops.x_inline = x_inline;
+ ops.x_getpostn = x_getpostn;
+ ops.x_setpostn = x_setpostn;
+ ops.x_destroy = x_destroy;
+
+ /* the other harmless ones */
+ ops.x_getlong = (dummyfunc1) harmless;
+ ops.x_getbytes = (dummyfunc2) harmless;
+
+ x.x_op = XDR_ENCODE;
+ x.x_ops = &ops;
+ x.x_handy = 0;
+ x.x_private = (caddr_t) NULL;
+ x.x_base = (caddr_t) 0;
+
+ stat = func(&x, data);
+ if (x.x_private)
+ free(x.x_private);
+ return (stat == TRUE ? (unsigned) x.x_handy: 0);
+}