Add eXtensible Data Record (XDR) support

	* configure.host: Build libc/xdr only on cygwin.
	* Makefile.am: Install xdr headers.
	* libc/configure.in: Support new libc/xdr subdirectory.
	* libc/Makefile.am: Support new libc/xdr subdirectory.
	* libc/include/rpc/types.h: New.
	* libc/include/rpc/xdr.h: New.
	* libc/xdr/README: New.
	* libc/xdr/Makefile.am: New.
	* libc/xdr/dummy.c: New.
	* libc/xdr/xdr.c: New.
	* libc/xdr/xdr_array.c: New.
	* libc/xdr/xdr_float.c: New.
	* libc/xdr/xdr_float_vax.c: New.
	* libc/xdr/xdr_mem.c: New.
	* libc/xdr/xdr_private.c: New.
	* libc/xdr/xdr_private.h: New.
	* libc/xdr/xdr_rec.c: New.
	* libc/xdr/xdr_reference.c: New.
	* libc/xdr/xdr_sizeof.c: New.
	* libc/xdr/xdr_stdio.c: New.

	Regenerate using ac-2.63 and am-1.11.1
	* libc/xdr/Makefile.in: New.
	* Makefile.in: Regenerate.
	* libc/configure: Regenerate.
	* libc/Makefile.in: Regenerate.
	* libc/argz/Makefile.in: Regenerate.
	* libc/ctype/Makefile.in: Regenerate.
	* libc/errno/Makefile.in: Regenerate.
	* libc/iconv/ccs/binary/Makefile.in: Regenerate.
	* libc/iconv/ccs/Makefile.in: Regenerate.
	* libc/iconv/ces/Makefile.in: Regenerate.
	* libc/iconv/lib/Makefile.in: Regenerate.
	* libc/iconv/Makefile.in: Regenerate.
	* libc/locale/Makefile.in: Regenerate.
	* libc/misc/Makefile.in: Regenerate.
	* libc/posix/Makefile.in: Regenerate.
	* libc/reent/Makefile.in: Regenerate.
	* libc/search/Makefile.in: Regenerate.
	* libc/signal/Makefile.in: Regenerate.
	* libc/stdio/Makefile.in: Regenerate.
	* libc/stdio64/Makefile.in: Regenerate.
	* libc/stdlib/Makefile.in: Regenerate.
	* libc/string/Makefile.in: Regenerate.
	* libc/syscalls/Makefile.in: Regenerate.
	* libc/time/Makefile.in: Regenerate.
	* libc/unix/Makefile.in: Regenerate.

1 files changed, 1041 insertions, 0 deletions

diff --git a/newlib/libc/xdr/xdr.c b/newlib/libc/xdr/xdr.c
new file mode 100644
index 000000000..4d518e896
--- /dev/null
+++ b/newlib/libc/xdr/xdr.c
@@ -0,0 +1,1041 @@
+/*
+ * Copyright (c) 2009, Sun Microsystems, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * - Redistributions of source code must retain the above copyright notice,
+ *   this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright notice,
+ *   this list of conditions and the following disclaimer in the documentation
+ *   and/or other materials provided with the distribution.
+ * - Neither the name of Sun Microsystems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * xdr.c, Generic XDR routines implementation.
+ *
+ * Copyright (C) 1986, Sun Microsystems, Inc.
+ *
+ * These are the "generic" xdr routines used to serialize and de-serialize
+ * most common data items.  See xdr.h for more info on the interface to
+ * xdr.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include <rpc/types.h>
+#include <rpc/xdr.h>
+
+#include "xdr_private.h"
+
+/*
+ * constants specific to the xdr "protocol"
+ */
+#define XDR_FALSE       ((long) 0)
+#define XDR_TRUE        ((long) 1)
+#define LASTUNSIGNED    ((u_int) 0-1)
+
+/*
+ * for unit alignment
+ */
+static const char xdr_zero[BYTES_PER_XDR_UNIT] = { 0, 0, 0, 0 };
+
+/*
+ * Free a data structure using XDR
+ * Not a filter, but a convenient utility nonetheless
+ */
+void
+_DEFUN (xdr_free, (proc, objp),
+        xdrproc_t proc _AND
+	void * objp)
+{
+  XDR x;
+
+  x.x_op = XDR_FREE;
+  (*proc) (&x, objp);
+}
+
+/*
+ * XDR nothing
+ */
+bool_t
+_DEFUN_VOID (xdr_void)
+{
+  return TRUE;
+}
+
+
+/*
+ * XDR integers
+ */
+bool_t
+_DEFUN (xdr_int, (xdrs, ip),
+        XDR * xdrs _AND
+	int * ip)
+{
+#if INT_MAX < LONG_MAX
+  long l;
+  switch (xdrs->x_op)
+    {
+    case XDR_ENCODE:
+      l = (long) *ip;
+      return (XDR_PUTLONG (xdrs, &l));
+
+    case XDR_DECODE:
+      if (!XDR_GETLONG (xdrs, &l))
+        {
+          return FALSE;
+        }
+      *ip = (int) l;
+      return TRUE;
+
+    case XDR_FREE:
+      return TRUE;
+    }
+  return FALSE;
+#elif INT_MAX == LONG_MAX
+  return xdr_long (xdrs, (long *) ip);
+#else
+# error Unexpeced integer sizes in xdr_int()
+#endif
+}
+
+/*
+ * XDR unsigned integers
+ */
+bool_t
+_DEFUN (xdr_u_int, (xdrs, up),
+        XDR * xdrs _AND
+	u_int * up)
+{
+#if UINT_MAX < ULONG_MAX
+  u_long l;
+  switch (xdrs->x_op)
+    {
+    case XDR_ENCODE:
+      l = (u_long) * up;
+      return (XDR_PUTLONG (xdrs, (long *) &l));
+
+    case XDR_DECODE:
+      if (!XDR_GETLONG (xdrs, (long *) &l))
+        {
+          return FALSE;
+        }
+      *up = (u_int) (u_long) l;
+      return TRUE;
+
+    case XDR_FREE:
+      return TRUE;
+    }
+  return FALSE;
+#elif UINT_MAX == ULONG_MAX
+  return xdr_u_long (xdrs, (u_long *) up);
+#else
+# error Unexpeced integer sizes in xdr_int()
+#endif
+}
+
+/*
+ * XDR long integers
+ */
+bool_t
+_DEFUN (xdr_long, (xdrs, lp),
+        XDR * xdrs _AND
+	long * lp)
+{
+  if ((xdrs->x_op == XDR_ENCODE)
+      && ((sizeof (int32_t) == sizeof (long)) || ((int32_t) *lp == *lp)))
+    return XDR_PUTLONG (xdrs, lp);
+
+  if (xdrs->x_op == XDR_DECODE)
+    return XDR_GETLONG (xdrs, lp);
+
+  if (xdrs->x_op == XDR_FREE)
+    return TRUE;
+
+  return FALSE;
+}
+
+/*
+ * XDR unsigned long integers
+ */
+bool_t
+_DEFUN (xdr_u_long, (xdrs, ulp),
+        XDR * xdrs _AND
+	u_long * ulp)
+{
+  switch (xdrs->x_op)
+    {
+    case XDR_ENCODE:
+      if ((sizeof (uint32_t) != sizeof (u_long)) && ((uint32_t) *ulp != *ulp))
+        return FALSE;
+      return (XDR_PUTLONG (xdrs, (long *) ulp));
+
+    case XDR_DECODE:
+      {
+        long int tmp;
+        if (XDR_GETLONG (xdrs, &tmp) == FALSE)
+          return FALSE;
+        *ulp = (u_long) (uint32_t) tmp;
+        return TRUE;
+      }
+
+    case XDR_FREE:
+      return TRUE;
+    }
+  return FALSE;
+}
+
+
+/*
+ * XDR 32-bit integers
+ */
+bool_t
+_DEFUN (xdr_int32_t, (xdrs, int32_p),
+        XDR * xdrs _AND
+	int32_t * int32_p)
+{
+  switch (xdrs->x_op)
+    {
+    case XDR_ENCODE:
+      return XDR_PUTINT32 (xdrs, int32_p);
+
+    case XDR_DECODE:
+      return XDR_GETINT32(xdrs, int32_p);
+
+    case XDR_FREE:
+      return TRUE;
+    }
+  return FALSE;
+}
+
+/*
+ * XDR unsigned 32-bit integers
+ */
+bool_t
+_DEFUN (xdr_u_int32_t, (xdrs, u_int32_p),
+        XDR * xdrs _AND
+	u_int32_t * u_int32_p)
+{
+  switch (xdrs->x_op)
+    {
+    case XDR_ENCODE:
+      return XDR_PUTINT32 (xdrs, (int32_t *)u_int32_p);
+
+    case XDR_DECODE:
+      return XDR_GETINT32 (xdrs, (int32_t *)u_int32_p);
+
+    case XDR_FREE:
+      return TRUE;
+    }
+  return FALSE;
+}
+
+/*
+ * XDR unsigned 32-bit integers
+ */
+bool_t
+_DEFUN (xdr_uint32_t, (xdrs, uint32_p),
+        XDR * xdrs _AND
+	uint32_t * uint32_p)
+{
+  switch (xdrs->x_op)
+    {
+    case XDR_ENCODE:
+      return XDR_PUTINT32 (xdrs, (int32_t *)uint32_p);
+
+    case XDR_DECODE:
+      return XDR_GETINT32 (xdrs, (int32_t *)uint32_p);
+
+    case XDR_FREE:
+      return TRUE;
+    }
+  return FALSE;
+}
+
+/*
+ * XDR short integers
+ */
+bool_t
+_DEFUN (xdr_short, (xdrs, sp),
+        XDR * xdrs _AND
+	short * sp)
+{
+  long l;
+
+  switch (xdrs->x_op)
+    {
+    case XDR_ENCODE:
+      l = (long) *sp;
+      return (XDR_PUTLONG (xdrs, &l));
+
+    case XDR_DECODE:
+      if (!XDR_GETLONG (xdrs, &l))
+        return FALSE;
+      *sp = (short) l;
+      return TRUE;
+
+    case XDR_FREE:
+      return TRUE;
+    }
+  return FALSE;
+}
+
+/*
+ * XDR unsigned short integers
+ */
+bool_t
+_DEFUN (xdr_u_short, (xdrs, usp),
+        XDR * xdrs _AND
+	u_short * usp)
+{
+  long l;
+
+  switch (xdrs->x_op)
+    {
+    case XDR_ENCODE:
+      l = (u_long) * usp;
+      return XDR_PUTLONG (xdrs, &l);
+
+    case XDR_DECODE:
+      if (!XDR_GETLONG (xdrs, &l))
+        return FALSE;
+      *usp = (u_short) (u_long) l;
+      return TRUE;
+
+    case XDR_FREE:
+      return TRUE;
+    }
+  return FALSE;
+}
+
+
+/*
+ * XDR 16-bit integers
+ */
+bool_t
+_DEFUN (xdr_int16_t, (xdrs, int16_p),
+        XDR * xdrs _AND
+	int16_t * int16_p)
+{
+  int32_t t;
+
+  switch (xdrs->x_op)
+    {
+    case XDR_ENCODE:
+      t = (int32_t) *int16_p;
+      return XDR_PUTINT32 (xdrs, &t);
+
+    case XDR_DECODE:
+      if (!XDR_GETINT32 (xdrs, &t))
+        return FALSE;
+      *int16_p = (int16_t) t;
+      return TRUE;
+
+    case XDR_FREE:
+      return TRUE;
+    }
+  return FALSE;
+}
+
+/*
+ * XDR unsigned 16-bit integers
+ */
+bool_t
+_DEFUN (xdr_u_int16_t, (xdrs, u_int16_p),
+        XDR * xdrs _AND
+	u_int16_t * u_int16_p)
+{
+  uint32_t ut;
+
+  switch (xdrs->x_op)
+    {
+    case XDR_ENCODE:
+      ut = (uint32_t) *u_int16_p;
+      return XDR_PUTINT32 (xdrs, (int32_t *)&ut);
+
+    case XDR_DECODE:
+      if (!XDR_GETINT32 (xdrs, (int32_t *)&ut))
+        return FALSE;
+      *u_int16_p = (u_int16_t) ut;
+      return TRUE;
+
+    case XDR_FREE:
+      return TRUE;
+    }
+  return FALSE;
+}
+
+/*
+ * XDR unsigned 16-bit integers
+ */
+bool_t
+_DEFUN (xdr_uint16_t, (xdrs, uint16_p),
+        XDR * xdrs _AND
+	uint16_t * uint16_p)
+{
+  uint32_t ut;
+
+  switch (xdrs->x_op)
+    {
+    case XDR_ENCODE:
+      ut = (uint32_t) *uint16_p;
+      return XDR_PUTINT32 (xdrs, (int32_t *)&ut);
+
+    case XDR_DECODE:
+      if (!XDR_GETINT32 (xdrs, (int32_t *)&ut))
+        return FALSE;
+      *uint16_p = (uint16_t) ut;
+      return TRUE;
+
+    case XDR_FREE:
+      return TRUE;
+    }
+  return FALSE;
+}
+
+/*
+ * XDR 8-bit integers
+ */
+bool_t
+_DEFUN (xdr_int8_t, (xdrs, int8_p),
+        XDR * xdrs _AND
+	int8_t * int8_p)
+{
+  int32_t t;
+
+  switch (xdrs->x_op)
+    {
+    case XDR_ENCODE:
+      t = (int32_t) *int8_p;
+      return XDR_PUTINT32 (xdrs, &t);
+
+    case XDR_DECODE:
+      if (!XDR_GETINT32 (xdrs, &t))
+        return FALSE;
+      *int8_p = (int8_t) t;
+      return TRUE;
+
+    case XDR_FREE:
+      return TRUE;
+    }
+  return FALSE;
+}
+
+/*
+ * XDR unsigned 8-bit integers
+ */
+bool_t
+_DEFUN (xdr_u_int8_t, (xdrs, u_int8_p),
+        XDR * xdrs _AND
+	u_int8_t * u_int8_p)
+{
+  uint32_t ut;
+
+  switch (xdrs->x_op)
+    {
+    case XDR_ENCODE:
+      ut = (uint32_t) *u_int8_p;
+      return XDR_PUTINT32 (xdrs, (int32_t *)&ut);
+
+    case XDR_DECODE:
+      if (!XDR_GETINT32 (xdrs, (int32_t *)&ut))
+        return FALSE;
+      *u_int8_p = (u_int8_t) ut;
+      return TRUE;
+
+    case XDR_FREE:
+      return TRUE;
+    }
+  return FALSE;
+}
+
+/*
+ * XDR unsigned 8-bit integers
+ */
+bool_t
+_DEFUN (xdr_uint8_t, (xdrs, uint8_p),
+        XDR * xdrs _AND
+	uint8_t * uint8_p)
+{
+  uint32_t ut;
+
+  switch (xdrs->x_op)
+    {
+    case XDR_ENCODE:
+      ut = (uint32_t) *uint8_p;
+      return XDR_PUTINT32 (xdrs, (int32_t *)&ut);
+
+    case XDR_DECODE:
+      if (!XDR_GETINT32 (xdrs, (int32_t *)&ut))
+        return FALSE;
+      *uint8_p = (uint8_t) ut;
+      return TRUE;
+
+    case XDR_FREE:
+      return TRUE;
+    }
+  return FALSE;
+
+}
+
+
+/*
+ * XDR a char
+ */
+bool_t
+_DEFUN (xdr_char, (xdrs, cp),
+        XDR * xdrs _AND
+	char * cp)
+{
+  int i;
+
+  i = (*cp);
+  if (!xdr_int (xdrs, &i))
+    return FALSE;
+  *cp = (char) i;
+  return TRUE;
+}
+
+/*
+ * XDR an unsigned char
+ */
+bool_t
+_DEFUN (xdr_u_char, (xdrs, ucp),
+        XDR * xdrs _AND
+	u_char * ucp)
+{
+  u_int u;
+
+  u = (*ucp);
+  if (!xdr_u_int (xdrs, &u))
+    return FALSE;
+  *ucp = (u_char) u;
+  return TRUE;
+}
+
+/*
+ * XDR booleans
+ */
+bool_t
+_DEFUN (xdr_bool, (xdrs, bp),
+        XDR * xdrs _AND
+	bool_t * bp)
+{
+  long lb;
+
+  switch (xdrs->x_op)
+    {
+    case XDR_ENCODE:
+      lb = *bp ? XDR_TRUE : XDR_FALSE;
+      return XDR_PUTLONG (xdrs, &lb);
+
+    case XDR_DECODE:
+      if (!XDR_GETLONG (xdrs, &lb))
+        return FALSE;
+      *bp = (lb == XDR_FALSE) ? FALSE : TRUE;
+      return TRUE;
+
+    case XDR_FREE:
+      return TRUE;
+    }
+  return FALSE;
+}
+
+/*
+ * XDR enumerations
+ */
+bool_t
+_DEFUN (xdr_enum, (xdrs, ep),
+        XDR * xdrs _AND
+	enum_t * ep)
+{
+  enum sizecheck
+  { SIZEVAL };                  /* used to find the size of an enum */
+
+  /*
+   * enums are treated as ints
+   */
+  /* LINTED */ if (sizeof (enum sizecheck) == 4)
+    {
+#if INT_MAX < LONG_MAX
+      long l;
+      switch (xdrs->x_op)
+        {
+        case XDR_ENCODE:
+          l = (long) *ep;
+          return XDR_PUTLONG (xdrs, &l);
+
+        case XDR_DECODE:
+          if (!XDR_GETLONG (xdrs, &l))
+            return FALSE;
+          *ep = l;
+        case XDR_FREE:
+          return TRUE;
+        }
+#else
+       return xdr_long (xdrs, (long *) (void *) ep);
+#endif
+    }
+  else /* LINTED */ if (sizeof (enum sizecheck) == sizeof (short))
+    {
+       return (xdr_short (xdrs, (short *) (void *) ep));
+    }
+  return FALSE;
+}
+
+/*
+ * XDR opaque data
+ * Allows the specification of a fixed size sequence of opaque bytes.
+ * cp points to the opaque object and cnt gives the byte length.
+ */
+bool_t
+_DEFUN (xdr_opaque, (xdrs, cp, cnt),
+        XDR * xdrs _AND
+	caddr_t cp _AND
+	u_int cnt)
+{
+  u_int rndup;
+  static char crud[BYTES_PER_XDR_UNIT];
+
+  /*
+   * if no data we are done
+   */
+  if (cnt == 0)
+    return TRUE;
+
+  /*
+   * round byte count to full xdr units
+   */
+  rndup = cnt % BYTES_PER_XDR_UNIT;
+  if (rndup > 0)
+    rndup = BYTES_PER_XDR_UNIT - rndup;
+
+  switch (xdrs->x_op)
+    {
+    case XDR_DECODE:
+      if (!XDR_GETBYTES (xdrs, cp, cnt))
+        return FALSE;
+      if (rndup == 0)
+        return TRUE;
+      return XDR_GETBYTES (xdrs, (caddr_t) crud, rndup);
+
+    case XDR_ENCODE:
+      if (!XDR_PUTBYTES (xdrs, cp, cnt))
+        return FALSE;
+      if (rndup == 0)
+        return TRUE;
+      return (XDR_PUTBYTES (xdrs, xdr_zero, rndup));
+
+    case XDR_FREE:
+      return TRUE;
+    }
+  return FALSE;
+}
+
+/*
+ * XDR counted bytes
+ * *cpp is a pointer to the bytes, *sizep is the count.
+ * If *cpp is NULL maxsize bytes are allocated
+ */
+bool_t
+_DEFUN (xdr_bytes, (xdrs, cpp, sizep, maxsize),
+        XDR * xdrs _AND
+	char ** cpp _AND
+	u_int * sizep _AND
+	u_int maxsize)
+{
+  char *sp = *cpp;              /* sp is the actual string pointer */
+  u_int nodesize;
+
+  /*
+   * first deal with the length since xdr bytes are counted
+   */
+  if (!xdr_u_int (xdrs, sizep))
+    return FALSE;
+
+  nodesize = *sizep;
+  if ((nodesize > maxsize) && (xdrs->x_op != XDR_FREE))
+    return FALSE;
+
+  /*
+   * now deal with the actual bytes
+   */
+  switch (xdrs->x_op)
+    {
+    case XDR_DECODE:
+      if (nodesize == 0)
+        return TRUE;
+      if (sp == NULL)
+        *cpp = sp = mem_alloc (nodesize);
+      if (sp == NULL)
+        {
+          xdr_warnx ("xdr_bytes: out of memory");
+          errno = ENOMEM;
+          return FALSE;
+        }
+      /* FALLTHROUGH */
+
+    case XDR_ENCODE:
+      return xdr_opaque (xdrs, sp, nodesize);
+
+    case XDR_FREE:
+      if (sp != NULL)
+        {
+          mem_free (sp, nodesize);
+          *cpp = NULL;
+        }
+      return TRUE;
+    }
+  return FALSE;
+}
+
+/*
+ * Implemented here due to commonality of the object.
+ */
+bool_t
+_DEFUN (xdr_netobj, (xdrs, np),
+        XDR * xdrs _AND
+	struct netobj * np)
+{
+  return (xdr_bytes (xdrs, &np->n_bytes, &np->n_len, MAX_NETOBJ_SZ));
+}
+
+/*
+ * XDR a descriminated union
+ * Support routine for discriminated unions.
+ * You create an array of xdrdiscrim structures, terminated with
+ * an entry with a null procedure pointer.  The routine gets
+ * the discriminant value and then searches the array of xdrdiscrims
+ * looking for that value.  It calls the procedure given in the xdrdiscrim
+ * to handle the discriminant.  If there is no specific routine a default
+ * routine may be called.
+ * If there is no specific or default routine an error is returned.
+ *   dscmp:    enum to decide which arm to work on
+ *   unp:      ptr to the union itself
+ *   choices:  ptr to array of [value, xdr proc] for each arm
+ *   dfault:   default xdr routine
+ */
+bool_t
+_DEFUN (xdr_union, (xdrs, dscmp, unp, choices, dfault),
+        XDR * xdrs _AND
+        enum_t * dscmp _AND
+        char * unp _AND
+        const struct xdr_discrim * choices _AND
+        xdrproc_t dfault)
+{
+  enum_t dscm;
+
+  /*
+   * we deal with the discriminator;  it's an enum
+   */
+  if (!xdr_enum (xdrs, dscmp))
+    return FALSE;
+
+  dscm = *dscmp;
+
+  /*
+   * search choices for a value that matches the discriminator.
+   * if we find one, execute the xdr routine for that value.
+   */
+  for (; choices->proc != NULL_xdrproc_t; choices++)
+    {
+      if (choices->value == dscm)
+        return ((*(choices->proc)) (xdrs, unp, LASTUNSIGNED));
+    }
+
+  /*
+   * no match - execute the default xdr routine if there is one
+   */
+  return ((dfault == NULL_xdrproc_t) ? FALSE : (*dfault) (xdrs, unp, LASTUNSIGNED));
+}
+
+
+/*
+ * Non-portable xdr primitives.
+ * Care should be taken when moving these routines to new architectures.
+ */
+
+
+/*
+ * XDR null terminated ASCII strings
+ * xdr_string deals with "C strings" - arrays of bytes that are
+ * terminated by a NULL character.  The parameter cpp references a
+ * pointer to storage; If the pointer is null, then the necessary
+ * storage is allocated.  The last parameter is the max allowed length
+ * of the string as specified by a protocol.
+ */
+bool_t
+_DEFUN (xdr_string, (xdrs, cpp, maxsize),
+        XDR * xdrs _AND
+        char ** cpp _AND
+        u_int maxsize)
+{
+  char *sp = *cpp;              /* sp is the actual string pointer */
+  u_int size;
+  u_int nodesize;
+
+  /*
+   * first deal with the length since xdr strings are counted-strings
+   */
+  switch (xdrs->x_op)
+    {
+    case XDR_FREE:
+      if (sp == NULL)
+        return TRUE;        /* already free */
+
+      /* FALLTHROUGH */
+    case XDR_ENCODE:
+      if (sp == NULL)
+        return FALSE;
+
+      size = strlen (sp);
+      break;
+    case XDR_DECODE:
+      break;
+    }
+  if (!xdr_u_int (xdrs, &size))
+      return FALSE;
+
+  if (size > maxsize)
+    return FALSE;
+
+  nodesize = size + 1;
+  if (nodesize == 0)
+    {
+      /* This means an overflow.  It a bug in the caller which
+       * provided a too large maxsize but nevertheless catch it
+       * here.
+       */
+      return FALSE;
+    }
+
+  /*
+   * now deal with the actual bytes
+   */
+  switch (xdrs->x_op)
+    {
+
+    case XDR_DECODE:
+      if (sp == NULL)
+        *cpp = sp = mem_alloc (nodesize);
+      if (sp == NULL)
+        {
+          xdr_warnx ("xdr_string: out of memory");
+          errno = ENOMEM;
+          return FALSE;
+        }
+      sp[size] = 0;
+      /* FALLTHROUGH */
+
+    case XDR_ENCODE:
+      return xdr_opaque (xdrs, sp, size);
+
+    case XDR_FREE:
+      mem_free (sp, nodesize);
+      *cpp = NULL;
+      return TRUE;
+    }
+  return FALSE;
+}
+
+/*
+ * Wrapper for xdr_string that can be called directly from
+ * routines like clnt_call
+ */
+bool_t
+_DEFUN (xdr_wrapstring, (xdrs, cpp),
+        XDR * xdrs _AND
+        char ** cpp)
+{
+  return xdr_string (xdrs, cpp, LASTUNSIGNED);
+}
+
+
+#if defined(___int64_t_defined)
+/*
+ * NOTE: xdr_hyper(), xdr_u_hyper(), xdr_longlong_t(), and xdr_u_longlong_t()
+ * are in the "non-portable" section because they require that a `long long'
+ * be a 64-bit type.
+ *
+ * --thorpej@netbsd.org, November 30, 1999
+ */
+
+/*
+ * XDR 64-bit integers
+ */
+bool_t
+_DEFUN (xdr_int64_t, (xdrs, llp),
+        XDR * xdrs _AND
+        int64_t * llp)
+{
+  int32_t t1, t2;
+
+  switch (xdrs->x_op)
+    {
+    case XDR_ENCODE:
+      t1 = (int32_t) ((*llp) >> 32);
+      t2 = (int32_t) (*llp);
+      return (XDR_PUTINT32 (xdrs, &t1) && XDR_PUTINT32 (xdrs, &t2));
+
+    case XDR_DECODE:
+      if (!XDR_GETINT32 (xdrs, &t1) || !XDR_GETINT32 (xdrs, &t2))
+        return FALSE;
+      *llp = ((int64_t) t1) << 32;
+      *llp |= (uint32_t) t2;
+      return TRUE;
+
+    case XDR_FREE:
+      return TRUE;
+    }
+  return FALSE;
+}
+
+
+/*
+ * XDR unsigned 64-bit integers
+ */
+bool_t
+_DEFUN (xdr_u_int64_t, (xdrs, ullp),
+        XDR * xdrs _AND
+        u_int64_t * ullp)
+{
+  uint32_t t1, t2;
+
+  switch (xdrs->x_op)
+    {
+    case XDR_ENCODE:
+      t1 = (uint32_t) ((*ullp) >> 32);
+      t2 = (uint32_t) (*ullp);
+      return (XDR_PUTINT32 (xdrs, (int32_t *)&t1) &&
+              XDR_PUTINT32 (xdrs, (int32_t *)&t2));
+
+    case XDR_DECODE:
+      if (!XDR_GETINT32 (xdrs, (int32_t *)&t1) ||
+          !XDR_GETINT32 (xdrs, (int32_t *)&t2))
+        return FALSE;
+      *ullp = ((u_int64_t) t1) << 32;
+      *ullp |= t2;
+      return TRUE;
+
+    case XDR_FREE:
+      return TRUE;
+    }
+  return FALSE;
+}
+
+/*
+ * XDR unsigned 64-bit integers
+ */
+bool_t
+_DEFUN (xdr_uint64_t, (xdrs, ullp),
+        XDR * xdrs _AND
+        uint64_t * ullp)
+{
+  uint32_t t1, t2;
+
+  switch (xdrs->x_op)
+    {
+    case XDR_ENCODE:
+      t1 = (uint32_t) ((*ullp) >> 32);
+      t2 = (uint32_t) (*ullp);
+      return (XDR_PUTINT32 (xdrs, (int32_t *)&t1) &&
+              XDR_PUTINT32 (xdrs, (int32_t *)&t2));
+
+    case XDR_DECODE:
+      if (!XDR_GETINT32 (xdrs, (int32_t *)&t1) ||
+          !XDR_GETINT32 (xdrs, (int32_t *)&t2))
+        return FALSE;
+      *ullp = ((uint64_t) t1) << 32;
+      *ullp |= t2;
+      return TRUE;
+
+    case XDR_FREE:
+      return TRUE;
+    }
+  return FALSE;
+}
+
+
+/*
+ * XDR hypers
+ */
+bool_t
+_DEFUN (xdr_hyper, (xdrs, llp),
+        XDR * xdrs _AND
+        quad_t * llp)
+{
+  /*
+   * Don't bother open-coding this; it's a fair amount of code.  Just
+   * call xdr_int64_t().
+   */
+  return (xdr_int64_t (xdrs, (int64_t *) llp));
+}
+
+
+/*
+ * XDR unsigned hypers
+ */
+bool_t
+_DEFUN (xdr_u_hyper, (xdrs, ullp),
+        XDR * xdrs _AND
+        u_quad_t * ullp)
+{
+  /*
+   * Don't bother open-coding this; it's a fair amount of code.  Just
+   * call xdr_uint64_t().
+   */
+  return (xdr_uint64_t (xdrs, (uint64_t *) ullp));
+}
+
+
+/*
+ * XDR longlong_t's
+ */
+bool_t
+_DEFUN (xdr_longlong_t, (xdrs, llp),
+        XDR * xdrs _AND
+        quad_t * llp)
+{
+  /*
+   * Don't bother open-coding this; it's a fair amount of code.  Just
+   * call xdr_int64_t().
+   */
+  return (xdr_int64_t (xdrs, (int64_t *) llp));
+}
+
+
+/*
+ * XDR u_longlong_t's
+ */
+bool_t
+_DEFUN (xdr_u_longlong_t, (xdrs, ullp),
+        XDR * xdrs _AND
+        u_quad_t *ullp)
+{
+  /*
+   * Don't bother open-coding this; it's a fair amount of code.  Just
+   * call xdr_u_int64_t().
+   */
+  return (xdr_uint64_t (xdrs, (uint64_t *) ullp));
+}
+
+#endif /* ___int64_t_defined */
+