+++ /dev/null
-# define INTUSE(name) name
-# define INTDEF(name)
-/* @(#)xdr.c 2.1 88/07/29 4.0 RPCSRC */
-/*
- * 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
- */
-#if !defined(lint) && defined(SCCSIDS)
-static char sccsid[] = "@(#)xdr.c 1.35 87/08/12";
-#endif
-
-/*
- * 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 <stdio.h>
-#include <limits.h>
-#include <string.h>
-#include <libintl.h>
-
-#include "types.h"
-#include "xdr.h"
-
-#ifdef USE_IN_LIBIO
-# include <wchar.h>
-#endif
-
-/*
- * 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
-xdr_free (xdrproc_t proc, char *objp)
-{
- XDR x;
-
- x.x_op = XDR_FREE;
- (*proc) (&x, objp);
-}
-
-/*
- * XDR nothing
- */
-bool_t
-xdr_void (void)
-{
- return TRUE;
-}
-INTDEF(xdr_void)
-
-/*
- * XDR integers
- */
-bool_t
-xdr_int (XDR *xdrs, 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;
- case XDR_FREE:
- return TRUE;
- }
- return FALSE;
-#elif INT_MAX == LONG_MAX
- return INTUSE(xdr_long) (xdrs, (long *) ip);
-#elif INT_MAX == SHRT_MAX
- return INTUSE(xdr_short) (xdrs, (short *) ip);
-#else
-#error unexpected integer sizes in_xdr_int()
-#endif
-}
-INTDEF(xdr_int)
-
-/*
- * XDR unsigned integers
- */
-bool_t
-xdr_u_int (XDR *xdrs, u_int *up)
-{
-#if UINT_MAX < ULONG_MAX
- long l;
-
- switch (xdrs->x_op)
- {
- case XDR_ENCODE:
- l = (u_long) * up;
- return XDR_PUTLONG (xdrs, &l);
-
- case XDR_DECODE:
- if (!XDR_GETLONG (xdrs, &l))
- {
- return FALSE;
- }
- *up = (u_int) (u_long) l;
- case XDR_FREE:
- return TRUE;
- }
- return FALSE;
-#elif UINT_MAX == ULONG_MAX
- return INTUSE(xdr_u_long) (xdrs, (u_long *) up);
-#elif UINT_MAX == USHRT_MAX
- return INTUSE(xdr_short) (xdrs, (short *) up);
-#else
-#error unexpected integer sizes in_xdr_u_int()
-#endif
-}
-INTDEF(xdr_u_int)
-
-/*
- * XDR long integers
- * The definition of xdr_long() is kept for backward
- * compatibility. Instead xdr_int() should be used.
- */
-bool_t
-xdr_long (XDR *xdrs, 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;
-}
-INTDEF(xdr_long)
-
-/*
- * XDR unsigned long integers
- * The definition of xdr_u_long() is kept for backward
- * compatibility. Instead xdr_u_int() should be used.
- */
-bool_t
-xdr_u_long (XDR *xdrs, u_long *ulp)
-{
- switch (xdrs->x_op)
- {
- case XDR_DECODE:
- {
- long int tmp;
-
- if (XDR_GETLONG (xdrs, &tmp) == FALSE)
- return FALSE;
-
- *ulp = (uint32_t) tmp;
- return TRUE;
- }
-
- case XDR_ENCODE:
- if (sizeof (uint32_t) != sizeof (u_long)
- && (uint32_t) *ulp != *ulp)
- return FALSE;
-
- return XDR_PUTLONG (xdrs, (long *) ulp);
-
- case XDR_FREE:
- return TRUE;
- }
- return FALSE;
-}
-INTDEF(xdr_u_long)
-
-/*
- * XDR hyper integers
- * same as xdr_u_hyper - open coded to save a proc call!
- */
-bool_t
-xdr_hyper (XDR *xdrs, quad_t *llp)
-{
- long int t1, t2;
-
- if (xdrs->x_op == XDR_ENCODE)
- {
- t1 = (long) ((*llp) >> 32);
- t2 = (long) (*llp);
- return (XDR_PUTLONG(xdrs, &t1) && XDR_PUTLONG(xdrs, &t2));
- }
-
- if (xdrs->x_op == XDR_DECODE)
- {
- if (!XDR_GETLONG(xdrs, &t1) || !XDR_GETLONG(xdrs, &t2))
- return FALSE;
- *llp = ((quad_t) t1) << 32;
- *llp |= (uint32_t) t2;
- return TRUE;
- }
-
- if (xdrs->x_op == XDR_FREE)
- return TRUE;
-
- return FALSE;
-}
-INTDEF(xdr_hyper)
-
-
-/*
- * XDR hyper integers
- * same as xdr_hyper - open coded to save a proc call!
- */
-bool_t
-xdr_u_hyper (XDR *xdrs, u_quad_t *ullp)
-{
- long int t1, t2;
-
- if (xdrs->x_op == XDR_ENCODE)
- {
- t1 = (unsigned long) ((*ullp) >> 32);
- t2 = (unsigned long) (*ullp);
- return (XDR_PUTLONG(xdrs, &t1) && XDR_PUTLONG(xdrs, &t2));
- }
-
- if (xdrs->x_op == XDR_DECODE)
- {
- if (!XDR_GETLONG(xdrs, &t1) || !XDR_GETLONG(xdrs, &t2))
- return FALSE;
- *ullp = ((u_quad_t) t1) << 32;
- *ullp |= (uint32_t) t2;
- return TRUE;
- }
-
- if (xdrs->x_op == XDR_FREE)
- return TRUE;
-
- return FALSE;
-}
-INTDEF(xdr_u_hyper)
-
-bool_t
-xdr_longlong_t (XDR *xdrs, quad_t *llp)
-{
- return INTUSE(xdr_hyper) (xdrs, llp);
-}
-
-bool_t
-xdr_u_longlong_t (XDR *xdrs, u_quad_t *ullp)
-{
- return INTUSE(xdr_u_hyper) (xdrs, ullp);
-}
-
-/*
- * XDR short integers
- */
-bool_t
-xdr_short (XDR *xdrs, 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;
-}
-INTDEF(xdr_short)
-
-/*
- * XDR unsigned short integers
- */
-bool_t
-xdr_u_short (XDR *xdrs, 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;
-}
-INTDEF(xdr_u_short)
-
-
-/*
- * XDR a char
- */
-bool_t
-xdr_char (XDR *xdrs, char *cp)
-{
- int i;
-
- i = (*cp);
- if (!INTUSE(xdr_int) (xdrs, &i))
- {
- return FALSE;
- }
- *cp = i;
- return TRUE;
-}
-
-/*
- * XDR an unsigned char
- */
-bool_t
-xdr_u_char (XDR *xdrs, u_char *cp)
-{
- u_int u;
-
- u = (*cp);
- if (!INTUSE(xdr_u_int) (xdrs, &u))
- {
- return FALSE;
- }
- *cp = u;
- return TRUE;
-}
-
-/*
- * XDR booleans
- */
-bool_t
-xdr_bool (XDR *xdrs, 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;
-}
-INTDEF(xdr_bool)
-
-/*
- * XDR enumerations
- */
-bool_t
-xdr_enum (XDR *xdrs, enum_t *ep)
-{
- enum sizecheck
- {
- SIZEVAL
- }; /* used to find the size of an enum */
-
- /*
- * enums are treated as ints
- */
- if (sizeof (enum sizecheck) == 4)
- {
-#if INT_MAX < LONG_MAX
- long l;
-
- switch (xdrs->x_op)
- {
- case XDR_ENCODE:
- l = *ep;
- return XDR_PUTLONG (xdrs, &l);
-
- case XDR_DECODE:
- if (!XDR_GETLONG (xdrs, &l))
- {
- return FALSE;
- }
- *ep = l;
- case XDR_FREE:
- return TRUE;
-
- }
- return FALSE;
-#else
- return INTUSE(xdr_long) (xdrs, (long *) ep);
-#endif
- }
- else if (sizeof (enum sizecheck) == sizeof (short))
- {
- return INTUSE(xdr_short) (xdrs, (short *) ep);
- }
- else
- {
- return FALSE;
- }
-}
-INTDEF(xdr_enum)
-
-/*
- * 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
-xdr_opaque (XDR *xdrs, caddr_t cp, 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;
-}
-INTDEF(xdr_opaque)
-
-/*
- * XDR counted bytes
- * *cpp is a pointer to the bytes, *sizep is the count.
- * If *cpp is NULL maxsize bytes are allocated
- */
-bool_t
-xdr_bytes (xdrs, cpp, sizep, maxsize)
- XDR *xdrs;
- char **cpp;
- u_int *sizep;
- 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 (!INTUSE(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 = (char *) mem_alloc (nodesize);
- }
- if (sp == NULL)
- {
- fprintf (NULL, "%s", "xdr_bytes: out of memory\n");
- return FALSE;
- }
- /* fall into ... */
-
- case XDR_ENCODE:
- return INTUSE(xdr_opaque) (xdrs, sp, nodesize);
-
- case XDR_FREE:
- if (sp != NULL)
- {
- mem_free (sp, nodesize);
- *cpp = NULL;
- }
- return TRUE;
- }
- return FALSE;
-}
-INTDEF(xdr_bytes)
-
-/*
- * Implemented here due to commonality of the object.
- */
-bool_t
-xdr_netobj (xdrs, np)
- XDR *xdrs;
- struct netobj *np;
-{
-
- return INTUSE(xdr_bytes) (xdrs, &np->n_bytes, &np->n_len, MAX_NETOBJ_SZ);
-}
-INTDEF(xdr_netobj)
-
-/*
- * XDR a discriminated 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.
- */
-bool_t
-xdr_union (xdrs, dscmp, unp, choices, dfault)
- XDR *xdrs;
- enum_t *dscmp; /* enum to decide which arm to work on */
- char *unp; /* the union itself */
- const struct xdr_discrim *choices; /* [value, xdr proc] for each arm */
- xdrproc_t dfault; /* default xdr routine */
-{
- enum_t dscm;
-
- /*
- * we deal with the discriminator; it's an enum
- */
- if (!INTUSE(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));
-}
-INTDEF(xdr_union)
-
-
-/*
- * 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
-xdr_string (xdrs, cpp, maxsize)
- XDR *xdrs;
- char **cpp;
- 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 */
- }
- /* fall through... */
- case XDR_ENCODE:
- if (sp == NULL)
- return FALSE;
- size = strlen (sp);
- break;
- case XDR_DECODE:
- break;
- }
- if (!INTUSE(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 = (char *) mem_alloc (nodesize);
- if (sp == NULL)
- {
- fprintf (NULL, "%s", "xdr_string: out of memory\n");
- return FALSE;
- }
- sp[size] = 0;
- /* fall into ... */
-
- case XDR_ENCODE:
- return INTUSE(xdr_opaque) (xdrs, sp, size);
-
- case XDR_FREE:
- mem_free (sp, nodesize);
- *cpp = NULL;
- return TRUE;
- }
- return FALSE;
-}
-INTDEF(xdr_string)
-
-/*
- * Wrapper for xdr_string that can be called directly from
- * routines like clnt_call
- */
-bool_t
-xdr_wrapstring (xdrs, cpp)
- XDR *xdrs;
- char **cpp;
-{
- if (INTUSE(xdr_string) (xdrs, cpp, LASTUNSIGNED))
- {
- return TRUE;
- }
- return FALSE;
-}
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