Code:
/* @(#)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 <stdlib.h>
#include <string.h>
#include "rpc/types.h"
#include "rpc/xdr.h"
/* #include "C:\MinGW\include\rpc.h" ! calls _ansi.h */
/* #include "H:\RIH5342\xdr\github\types.h" */
/* #include "H:\RIH5342\xdr\github\xdr.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 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(proc, objp)
xdrproc_t proc;
char *objp;
{
XDR x;
x.x_op = XDR_FREE;
(*proc)(&x, objp);
}
/*
* XDR nothing
*/
bool_t
xdr_void(/* xdrs, addr */)
/* XDR *xdrs; */
/* caddr_t addr; */
{
return (TRUE);
}
/*
* XDR integers
*/
bool_t
xdr_int(xdrs, ip)
XDR *xdrs;
int *ip;
{
#ifdef lint
(void) (xdr_short(xdrs, (short *)ip));
return (xdr_long(xdrs, (long *)ip));
#else
if (sizeof (int) == sizeof (long)) {
return (xdr_long(xdrs, (long *)ip));
} else {
return (xdr_short(xdrs, (short *)ip));
}
#endif
}
/*
* XDR unsigned integers
*/
bool_t
xdr_u_int(xdrs, up)
XDR *xdrs;
u_int *up;
{
#ifdef lint
(void) (xdr_short(xdrs, (short *)up));
return (xdr_u_long(xdrs, (u_long *)up));
#else
if (sizeof (u_int) == sizeof (u_long)) {
return (xdr_u_long(xdrs, (u_long *)up));
} else {
return (xdr_short(xdrs, (short *)up));
}
#endif
}
/*
* XDR long integers
* same as xdr_u_long - open coded to save a proc call!
*/
bool_t
xdr_long(xdrs, lp)
register XDR *xdrs;
long *lp;
{
if (xdrs->x_op == XDR_ENCODE)
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
* same as xdr_long - open coded to save a proc call!
*/
bool_t
xdr_u_long(xdrs, ulp)
register XDR *xdrs;
u_long *ulp;
{
if (xdrs->x_op == XDR_DECODE)
return (XDR_GETLONG(xdrs, (long *)ulp));
if (xdrs->x_op == XDR_ENCODE)
return (XDR_PUTLONG(xdrs, (long *)ulp));
if (xdrs->x_op == XDR_FREE)
return (TRUE);
return (FALSE);
}
/*
* XDR short integers
*/
bool_t
xdr_short(xdrs, sp)
register 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);
}
/*
* XDR unsigned short integers
*/
bool_t
xdr_u_short(xdrs, usp)
register XDR *xdrs;
u_short *usp;
{
u_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) l;
return (TRUE);
case XDR_FREE:
return (TRUE);
}
return (FALSE);
}
/*
* XDR a char
*/
bool_t
xdr_char(xdrs, cp)
XDR *xdrs;
char *cp;
{
int i;
i = (*cp);
if (!xdr_int(xdrs, &i)) {
return (FALSE);
}
*cp = i;
return (TRUE);
}
/*
* XDR an unsigned char
*/
bool_t
xdr_u_char(xdrs, cp)
XDR *xdrs;
char *cp;
{
u_int u;
u = (*cp);
if (!xdr_u_int(xdrs, &u)) {
return (FALSE);
}
*cp = u;
return (TRUE);
}