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XDR(3): Import from FreeBSD

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This commit is contained in:
Sebastian Huber 2016-06-09 11:46:09 +02:00
parent 9880635f2e
commit f41a394f91
8 changed files with 3017 additions and 0 deletions
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969
freebsd/lib/libc/xdr/xdr.c Normal file
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#include <machine/rtems-bsd-user-space.h>
/* $NetBSD: xdr.c,v 1.22 2000/07/06 03:10:35 christos Exp $ */
/*
* 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(LIBC_SCCS) && !defined(lint)
static char *sccsid2 = "@(#)xdr.c 1.35 87/08/12";
static char *sccsid = "@(#)xdr.c 2.1 88/07/29 4.0 RPCSRC";
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* 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 "namespace.h"
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <rpc/types.h>
#include <rpc/xdr.h>
#include "un-namespace.h"
typedef quad_t longlong_t; /* ANSI long long type */
typedef u_quad_t u_longlong_t; /* ANSI unsigned long long type */
/*
* 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(proc, objp)
xdrproc_t proc;
void *objp;
{
XDR x;
x.x_op = XDR_FREE;
(*proc)(&x, objp);
}
/*
* XDR nothing
*/
bool_t
xdr_void(void)
{
return (TRUE);
}
/*
* XDR integers
*/
bool_t
xdr_int(xdrs, ip)
XDR *xdrs;
int *ip;
{
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);
}
/* NOTREACHED */
return (FALSE);
}
/*
* XDR unsigned integers
*/
bool_t
xdr_u_int(xdrs, up)
XDR *xdrs;
u_int *up;
{
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) l;
return (TRUE);
case XDR_FREE:
return (TRUE);
}
/* NOTREACHED */
return (FALSE);
}
/*
* XDR long integers
* same as xdr_u_long - open coded to save a proc call!
*/
bool_t
xdr_long(xdrs, lp)
XDR *xdrs;
long *lp;
{
switch (xdrs->x_op) {
case XDR_ENCODE:
return (XDR_PUTLONG(xdrs, lp));
case XDR_DECODE:
return (XDR_GETLONG(xdrs, lp));
case XDR_FREE:
return (TRUE);
}
/* NOTREACHED */
return (FALSE);
}
/*
* XDR unsigned long integers
* same as xdr_long - open coded to save a proc call!
*/
bool_t
xdr_u_long(xdrs, ulp)
XDR *xdrs;
u_long *ulp;
{
switch (xdrs->x_op) {
case XDR_ENCODE:
return (XDR_PUTLONG(xdrs, (long *)ulp));
case XDR_DECODE:
return (XDR_GETLONG(xdrs, (long *)ulp));
case XDR_FREE:
return (TRUE);
}
/* NOTREACHED */
return (FALSE);
}
/*
* XDR 32-bit integers
* same as xdr_u_int32_t - open coded to save a proc call!
*/
bool_t
xdr_int32_t(xdrs, int32_p)
XDR *xdrs;
int32_t *int32_p;
{
long l;
switch (xdrs->x_op) {
case XDR_ENCODE:
l = (long) *int32_p;
return (XDR_PUTLONG(xdrs, &l));
case XDR_DECODE:
if (!XDR_GETLONG(xdrs, &l)) {
return (FALSE);
}
*int32_p = (int32_t) l;
return (TRUE);
case XDR_FREE:
return (TRUE);
}
/* NOTREACHED */
return (FALSE);
}
/*
* XDR unsigned 32-bit integers
* same as xdr_int32_t - open coded to save a proc call!
*/
bool_t
xdr_u_int32_t(xdrs, u_int32_p)
XDR *xdrs;
u_int32_t *u_int32_p;
{
u_long l;
switch (xdrs->x_op) {
case XDR_ENCODE:
l = (u_long) *u_int32_p;
return (XDR_PUTLONG(xdrs, (long *)&l));
case XDR_DECODE:
if (!XDR_GETLONG(xdrs, (long *)&l)) {
return (FALSE);
}
*u_int32_p = (u_int32_t) l;
return (TRUE);
case XDR_FREE:
return (TRUE);
}
/* NOTREACHED */
return (FALSE);
}
/*
* XDR unsigned 32-bit integers
* same as xdr_int32_t - open coded to save a proc call!
*/
bool_t
xdr_uint32_t(xdrs, u_int32_p)
XDR *xdrs;
uint32_t *u_int32_p;
{
u_long l;
switch (xdrs->x_op) {
case XDR_ENCODE:
l = (u_long) *u_int32_p;
return (XDR_PUTLONG(xdrs, (long *)&l));
case XDR_DECODE:
if (!XDR_GETLONG(xdrs, (long *)&l)) {
return (FALSE);
}
*u_int32_p = (u_int32_t) l;
return (TRUE);
case XDR_FREE:
return (TRUE);
}
/* NOTREACHED */
return (FALSE);
}
/*
* XDR short integers
*/
bool_t
xdr_short(xdrs, sp)
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);
}
/* NOTREACHED */
return (FALSE);
}
/*
* XDR unsigned short integers
*/
bool_t
xdr_u_short(xdrs, usp)
XDR *xdrs;
u_short *usp;
{
u_long l;
switch (xdrs->x_op) {
case XDR_ENCODE:
l = (u_long) *usp;
return (XDR_PUTLONG(xdrs, (long *)&l));
case XDR_DECODE:
if (!XDR_GETLONG(xdrs, (long *)&l)) {
return (FALSE);
}
*usp = (u_short) l;
return (TRUE);
case XDR_FREE:
return (TRUE);
}
/* NOTREACHED */
return (FALSE);
}
/*
* XDR 16-bit integers
*/
bool_t
xdr_int16_t(xdrs, int16_p)
XDR *xdrs;
int16_t *int16_p;
{
long l;
switch (xdrs->x_op) {
case XDR_ENCODE:
l = (long) *int16_p;
return (XDR_PUTLONG(xdrs, &l));
case XDR_DECODE:
if (!XDR_GETLONG(xdrs, &l)) {
return (FALSE);
}
*int16_p = (int16_t) l;
return (TRUE);
case XDR_FREE:
return (TRUE);
}
/* NOTREACHED */
return (FALSE);
}
/*
* XDR unsigned 16-bit integers
*/
bool_t
xdr_u_int16_t(xdrs, u_int16_p)
XDR *xdrs;
u_int16_t *u_int16_p;
{
u_long l;
switch (xdrs->x_op) {
case XDR_ENCODE:
l = (u_long) *u_int16_p;
return (XDR_PUTLONG(xdrs, (long *)&l));
case XDR_DECODE:
if (!XDR_GETLONG(xdrs, (long *)&l)) {
return (FALSE);
}
*u_int16_p = (u_int16_t) l;
return (TRUE);
case XDR_FREE:
return (TRUE);
}
/* NOTREACHED */
return (FALSE);
}
/*
* XDR unsigned 16-bit integers
*/
bool_t
xdr_uint16_t(xdrs, u_int16_p)
XDR *xdrs;
uint16_t *u_int16_p;
{
u_long l;
switch (xdrs->x_op) {
case XDR_ENCODE:
l = (u_long) *u_int16_p;
return (XDR_PUTLONG(xdrs, (long *)&l));
case XDR_DECODE:
if (!XDR_GETLONG(xdrs, (long *)&l)) {
return (FALSE);
}
*u_int16_p = (u_int16_t) l;
return (TRUE);
case XDR_FREE:
return (TRUE);
}
/* NOTREACHED */
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;
u_char *cp;
{
u_int u;
u = (*cp);
if (!xdr_u_int(xdrs, &u)) {
return (FALSE);
}
*cp = u;
return (TRUE);
}
/*
* XDR booleans
*/
bool_t
xdr_bool(xdrs, bp)
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);
}
/* NOTREACHED */
return (FALSE);
}
/*
* XDR enumerations
*/
bool_t
xdr_enum(xdrs, ep)
XDR *xdrs;
enum_t *ep;
{
enum sizecheck { SIZEVAL }; /* used to find the size of an enum */
/*
* enums are treated as ints
*/
/* LINTED */ if (sizeof (enum sizecheck) == sizeof (long)) {
return (xdr_long(xdrs, (long *)(void *)ep));
} else /* LINTED */ if (sizeof (enum sizecheck) == sizeof (int)) {
return (xdr_int(xdrs, (int *)(void *)ep));
} else /* LINTED */ if (sizeof (enum sizecheck) == sizeof (short)) {
return (xdr_short(xdrs, (short *)(void *)ep));
} else {
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
xdr_opaque(xdrs, cp, cnt)
XDR *xdrs;
caddr_t cp;
u_int cnt;
{
u_int rndup;
static int 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;
if (xdrs->x_op == XDR_DECODE) {
if (!XDR_GETBYTES(xdrs, cp, cnt)) {
return (FALSE);
}
if (rndup == 0)
return (TRUE);
return (XDR_GETBYTES(xdrs, (caddr_t)(void *)crud, rndup));
}
if (xdrs->x_op == XDR_ENCODE) {
if (!XDR_PUTBYTES(xdrs, cp, cnt)) {
return (FALSE);
}
if (rndup == 0)
return (TRUE);
return (XDR_PUTBYTES(xdrs, xdr_zero, rndup));
}
if (xdrs->x_op == 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
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 (! 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) {
warnx("xdr_bytes: out of memory");
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);
}
/* NOTREACHED */
return (FALSE);
}
/*
* Implemented here due to commonality of the object.
*/
bool_t
xdr_netobj(xdrs, np)
XDR *xdrs;
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.
*/
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 (! 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));
}
/*
* no match - execute the default xdr routine if there is one
*/
return ((dfault == NULL_xdrproc_t) ? FALSE :
(*dfault)(xdrs, unp));
}
/*
* 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 */
}
/* FALLTHROUGH */
case XDR_ENCODE:
size = strlen(sp);
break;
case XDR_DECODE:
break;
}
if (! xdr_u_int(xdrs, &size)) {
return (FALSE);
}
if (size > maxsize) {
return (FALSE);
}
nodesize = size + 1;
/*
* 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) {
warnx("xdr_string: out of memory");
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);
}
/* NOTREACHED */
return (FALSE);
}
/*
* Wrapper for xdr_string that can be called directly from
* routines like clnt_call
*/
bool_t
xdr_wrapstring(xdrs, cpp)
XDR *xdrs;
char **cpp;
{
return xdr_string(xdrs, cpp, LASTUNSIGNED);
}
/*
* 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
xdr_int64_t(xdrs, llp)
XDR *xdrs;
int64_t *llp;
{
u_long ul[2];
switch (xdrs->x_op) {
case XDR_ENCODE:
ul[0] = (u_long)((u_int64_t)*llp >> 32) & 0xffffffff;
ul[1] = (u_long)((u_int64_t)*llp) & 0xffffffff;
if (XDR_PUTLONG(xdrs, (long *)&ul[0]) == FALSE)
return (FALSE);
return (XDR_PUTLONG(xdrs, (long *)&ul[1]));
case XDR_DECODE:
if (XDR_GETLONG(xdrs, (long *)&ul[0]) == FALSE)
return (FALSE);
if (XDR_GETLONG(xdrs, (long *)&ul[1]) == FALSE)
return (FALSE);
*llp = (int64_t)
(((u_int64_t)ul[0] << 32) | ((u_int64_t)ul[1]));
return (TRUE);
case XDR_FREE:
return (TRUE);
}
/* NOTREACHED */
return (FALSE);
}
/*
* XDR unsigned 64-bit integers
*/
bool_t
xdr_u_int64_t(xdrs, ullp)
XDR *xdrs;
u_int64_t *ullp;
{
u_long ul[2];
switch (xdrs->x_op) {
case XDR_ENCODE:
ul[0] = (u_long)(*ullp >> 32) & 0xffffffff;
ul[1] = (u_long)(*ullp) & 0xffffffff;
if (XDR_PUTLONG(xdrs, (long *)&ul[0]) == FALSE)
return (FALSE);
return (XDR_PUTLONG(xdrs, (long *)&ul[1]));
case XDR_DECODE:
if (XDR_GETLONG(xdrs, (long *)&ul[0]) == FALSE)
return (FALSE);
if (XDR_GETLONG(xdrs, (long *)&ul[1]) == FALSE)
return (FALSE);
*ullp = (u_int64_t)
(((u_int64_t)ul[0] << 32) | ((u_int64_t)ul[1]));
return (TRUE);
case XDR_FREE:
return (TRUE);
}
/* NOTREACHED */
return (FALSE);
}
/*
* XDR unsigned 64-bit integers
*/
bool_t
xdr_uint64_t(xdrs, ullp)
XDR *xdrs;
uint64_t *ullp;
{
u_long ul[2];
switch (xdrs->x_op) {
case XDR_ENCODE:
ul[0] = (u_long)(*ullp >> 32) & 0xffffffff;
ul[1] = (u_long)(*ullp) & 0xffffffff;
if (XDR_PUTLONG(xdrs, (long *)&ul[0]) == FALSE)
return (FALSE);
return (XDR_PUTLONG(xdrs, (long *)&ul[1]));
case XDR_DECODE:
if (XDR_GETLONG(xdrs, (long *)&ul[0]) == FALSE)
return (FALSE);
if (XDR_GETLONG(xdrs, (long *)&ul[1]) == FALSE)
return (FALSE);
*ullp = (u_int64_t)
(((u_int64_t)ul[0] << 32) | ((u_int64_t)ul[1]));
return (TRUE);
case XDR_FREE:
return (TRUE);
}
/* NOTREACHED */
return (FALSE);
}
/*
* XDR hypers
*/
bool_t
xdr_hyper(xdrs, llp)
XDR *xdrs;
longlong_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
xdr_u_hyper(xdrs, ullp)
XDR *xdrs;
u_longlong_t *ullp;
{
/*
* Don't bother open-coding this; it's a fair amount of code. Just
* call xdr_u_int64_t().
*/
return (xdr_u_int64_t(xdrs, (u_int64_t *)ullp));
}
/*
* XDR longlong_t's
*/
bool_t
xdr_longlong_t(xdrs, llp)
XDR *xdrs;
longlong_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
xdr_u_longlong_t(xdrs, ullp)
XDR *xdrs;
u_longlong_t *ullp;
{
/*
* Don't bother open-coding this; it's a fair amount of code. Just
* call xdr_u_int64_t().
*/
return (xdr_u_int64_t(xdrs, (u_int64_t *)ullp));
}

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#include <machine/rtems-bsd-user-space.h>
/* $NetBSD: xdr_array.c,v 1.12 2000/01/22 22:19:18 mycroft Exp $ */
/*
* 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(LIBC_SCCS) && !defined(lint)
static char *sccsid2 = "@(#)xdr_array.c 1.10 87/08/11 Copyr 1984 Sun Micro";
static char *sccsid = "@(#)xdr_array.c 2.1 88/07/29 4.0 RPCSRC";
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* xdr_array.c, Generic XDR routines impelmentation.
*
* Copyright (C) 1984, Sun Microsystems, Inc.
*
* These are the "non-trivial" xdr primitives used to serialize and de-serialize
* arrays. See xdr.h for more info on the interface to xdr.
*/
#include "namespace.h"
#include <err.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <rpc/types.h>
#include <rpc/xdr.h>
#include "un-namespace.h"
/*
* XDR an array of arbitrary elements
* *addrp is a pointer to the array, *sizep is the number of elements.
* If addrp is NULL (*sizep * elsize) bytes are allocated.
* elsize is the size (in bytes) of each element, and elproc is the
* xdr procedure to call to handle each element of the array.
*/
bool_t
xdr_array(xdrs, addrp, sizep, maxsize, elsize, elproc)
XDR *xdrs;
caddr_t *addrp; /* array pointer */
u_int *sizep; /* number of elements */
u_int maxsize; /* max numberof elements */
u_int elsize; /* size in bytes of each element */
xdrproc_t elproc; /* xdr routine to handle each element */
{
u_int i;
caddr_t target = *addrp;
u_int c; /* the actual element count */
bool_t stat = TRUE;
u_int nodesize;
/* like strings, arrays are really counted arrays */
if (!xdr_u_int(xdrs, sizep)) {
return (FALSE);
}
c = *sizep;
if ((c > maxsize || UINT_MAX/elsize < c) &&
(xdrs->x_op != XDR_FREE)) {
return (FALSE);
}
nodesize = c * elsize;
/*
* if we are deserializing, we may need to allocate an array.
* We also save time by checking for a null array if we are freeing.
*/
if (target == NULL)
switch (xdrs->x_op) {
case XDR_DECODE:
if (c == 0)
return (TRUE);
*addrp = target = mem_alloc(nodesize);
if (target == NULL) {
warnx("xdr_array: out of memory");
return (FALSE);
}
memset(target, 0, nodesize);
break;
case XDR_FREE:
return (TRUE);
case XDR_ENCODE:
break;
}
/*
* now we xdr each element of array
*/
for (i = 0; (i < c) && stat; i++) {
stat = (*elproc)(xdrs, target);
target += elsize;
}
/*
* the array may need freeing
*/
if (xdrs->x_op == XDR_FREE) {
mem_free(*addrp, nodesize);
*addrp = NULL;
}
return (stat);
}
/*
* xdr_vector():
*
* XDR a fixed length array. Unlike variable-length arrays,
* the storage of fixed length arrays is static and unfreeable.
* > basep: base of the array
* > size: size of the array
* > elemsize: size of each element
* > xdr_elem: routine to XDR each element
*/
bool_t
xdr_vector(xdrs, basep, nelem, elemsize, xdr_elem)
XDR *xdrs;
char *basep;
u_int nelem;
u_int elemsize;
xdrproc_t xdr_elem;
{
u_int i;
char *elptr;
elptr = basep;
for (i = 0; i < nelem; i++) {
if (!(*xdr_elem)(xdrs, elptr)) {
return(FALSE);
}
elptr += elemsize;
}
return(TRUE);
}

311
freebsd/lib/libc/xdr/xdr_float.c Normal file
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@ -0,0 +1,311 @@
#include <machine/rtems-bsd-user-space.h>
/* $NetBSD: xdr_float.c,v 1.23 2000/07/17 04:59:51 matt Exp $ */
/*
* 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(LIBC_SCCS) && !defined(lint)
static char *sccsid2 = "@(#)xdr_float.c 1.12 87/08/11 Copyr 1984 Sun Micro";
static char *sccsid = "@(#)xdr_float.c 2.1 88/07/29 4.0 RPCSRC";
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* xdr_float.c, Generic XDR routines implementation.
*
* Copyright (C) 1984, Sun Microsystems, Inc.
*
* These are the "floating point" xdr routines used to (de)serialize
* most common data items. See xdr.h for more info on the interface to
* xdr.
*/
#include "namespace.h"
#include <sys/types.h>
#include <rtems/bsd/sys/param.h>
#include <stdio.h>
#include <rpc/types.h>
#include <rpc/xdr.h>
#include "un-namespace.h"
/*
* NB: Not portable.
* This routine works on machines with IEEE754 FP and Vaxen.
*/
#if defined(__m68k__) || defined(__sparc__) || defined(__i386__) || \
defined(__mips__) || defined(__ns32k__) || defined(__alpha__) || \
defined(__arm__) || defined(__ppc__) || defined(__ia64__) || \
defined(__arm26__) || defined(__sparc64__) || defined(__amd64__)
#include <machine/endian.h>
#define IEEEFP
#endif
#if defined(__vax__)
/* What IEEE single precision floating point looks like on a Vax */
struct ieee_single {
unsigned int mantissa: 23;
unsigned int exp : 8;
unsigned int sign : 1;
};
/* Vax single precision floating point */
struct vax_single {
unsigned int mantissa1 : 7;
unsigned int exp : 8;
unsigned int sign : 1;
unsigned int mantissa2 : 16;
};
#define VAX_SNG_BIAS 0x81
#define IEEE_SNG_BIAS 0x7f
static struct sgl_limits {
struct vax_single s;
struct ieee_single ieee;
} sgl_limits[2] = {
{{ 0x7f, 0xff, 0x0, 0xffff }, /* Max Vax */
{ 0x0, 0xff, 0x0 }}, /* Max IEEE */
{{ 0x0, 0x0, 0x0, 0x0 }, /* Min Vax */
{ 0x0, 0x0, 0x0 }} /* Min IEEE */
};
#endif /* vax */
bool_t
xdr_float(xdrs, fp)
XDR *xdrs;
float *fp;
{
#ifndef IEEEFP
struct ieee_single is;
struct vax_single vs, *vsp;
struct sgl_limits *lim;
int i;
#endif
switch (xdrs->x_op) {
case XDR_ENCODE:
#ifdef IEEEFP
return (XDR_PUTINT32(xdrs, (int32_t *)fp));
#else
vs = *((struct vax_single *)fp);
for (i = 0, lim = sgl_limits;
i < sizeof(sgl_limits)/sizeof(struct sgl_limits);
i++, lim++) {
if ((vs.mantissa2 == lim->s.mantissa2) &&
(vs.exp == lim->s.exp) &&
(vs.mantissa1 == lim->s.mantissa1)) {
is = lim->ieee;
goto shipit;
}
}
is.exp = vs.exp - VAX_SNG_BIAS + IEEE_SNG_BIAS;
is.mantissa = (vs.mantissa1 << 16) | vs.mantissa2;
shipit:
is.sign = vs.sign;
return (XDR_PUTINT32(xdrs, (int32_t *)&is));
#endif
case XDR_DECODE:
#ifdef IEEEFP
return (XDR_GETINT32(xdrs, (int32_t *)fp));
#else
vsp = (struct vax_single *)fp;
if (!XDR_GETINT32(xdrs, (int32_t *)&is))
return (FALSE);
for (i = 0, lim = sgl_limits;
i < sizeof(sgl_limits)/sizeof(struct sgl_limits);
i++, lim++) {
if ((is.exp == lim->ieee.exp) &&
(is.mantissa == lim->ieee.mantissa)) {
*vsp = lim->s;
goto doneit;
}
}
vsp->exp = is.exp - IEEE_SNG_BIAS + VAX_SNG_BIAS;
vsp->mantissa2 = is.mantissa;
vsp->mantissa1 = (is.mantissa >> 16);
doneit:
vsp->sign = is.sign;
return (TRUE);
#endif
case XDR_FREE:
return (TRUE);
}
/* NOTREACHED */
return (FALSE);
}
#if defined(__vax__)
/* What IEEE double precision floating point looks like on a Vax */
struct ieee_double {
unsigned int mantissa1 : 20;
unsigned int exp : 11;
unsigned int sign : 1;
unsigned int mantissa2 : 32;
};
/* Vax double precision floating point */
struct vax_double {
unsigned int mantissa1 : 7;
unsigned int exp : 8;
unsigned int sign : 1;
unsigned int mantissa2 : 16;
unsigned int mantissa3 : 16;
unsigned int mantissa4 : 16;
};
#define VAX_DBL_BIAS 0x81
#define IEEE_DBL_BIAS 0x3ff
#define MASK(nbits) ((1 << nbits) - 1)
static struct dbl_limits {
struct vax_double d;
struct ieee_double ieee;
} dbl_limits[2] = {
{{ 0x7f, 0xff, 0x0, 0xffff, 0xffff, 0xffff }, /* Max Vax */
{ 0x0, 0x7ff, 0x0, 0x0 }}, /* Max IEEE */
{{ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, /* Min Vax */
{ 0x0, 0x0, 0x0, 0x0 }} /* Min IEEE */
};
#endif /* vax */
bool_t
xdr_double(xdrs, dp)
XDR *xdrs;
double *dp;
{
#ifdef IEEEFP
int32_t *i32p;
bool_t rv;
#else
int32_t *lp;
struct ieee_double id;
struct vax_double vd;
struct dbl_limits *lim;
int i;
#endif
switch (xdrs->x_op) {
case XDR_ENCODE:
#ifdef IEEEFP
i32p = (int32_t *)(void *)dp;
#if BYTE_ORDER == BIG_ENDIAN
rv = XDR_PUTINT32(xdrs, i32p);
if (!rv)
return (rv);
rv = XDR_PUTINT32(xdrs, i32p+1);
#else
rv = XDR_PUTINT32(xdrs, i32p+1);
if (!rv)
return (rv);
rv = XDR_PUTINT32(xdrs, i32p);
#endif
return (rv);
#else
vd = *((struct vax_double *)dp);
for (i = 0, lim = dbl_limits;
i < sizeof(dbl_limits)/sizeof(struct dbl_limits);
i++, lim++) {
if ((vd.mantissa4 == lim->d.mantissa4) &&
(vd.mantissa3 == lim->d.mantissa3) &&
(vd.mantissa2 == lim->d.mantissa2) &&
(vd.mantissa1 == lim->d.mantissa1) &&
(vd.exp == lim->d.exp)) {
id = lim->ieee;
goto shipit;
}
}
id.exp = vd.exp - VAX_DBL_BIAS + IEEE_DBL_BIAS;
id.mantissa1 = (vd.mantissa1 << 13) | (vd.mantissa2 >> 3);
id.mantissa2 = ((vd.mantissa2 & MASK(3)) << 29) |
(vd.mantissa3 << 13) |
((vd.mantissa4 >> 3) & MASK(13));
shipit:
id.sign = vd.sign;
lp = (int32_t *)&id;
return (XDR_PUTINT32(xdrs, lp++) && XDR_PUTINT32(xdrs, lp));
#endif
case XDR_DECODE:
#ifdef IEEEFP
i32p = (int32_t *)(void *)dp;
#if BYTE_ORDER == BIG_ENDIAN
rv = XDR_GETINT32(xdrs, i32p);
if (!rv)
return (rv);
rv = XDR_GETINT32(xdrs, i32p+1);
#else
rv = XDR_GETINT32(xdrs, i32p+1);
if (!rv)
return (rv);
rv = XDR_GETINT32(xdrs, i32p);
#endif
return (rv);
#else
lp = (int32_t *)&id;
if (!XDR_GETINT32(xdrs, lp++) || !XDR_GETINT32(xdrs, lp))
return (FALSE);
for (i = 0, lim = dbl_limits;
i < sizeof(dbl_limits)/sizeof(struct dbl_limits);
i++, lim++) {
if ((id.mantissa2 == lim->ieee.mantissa2) &&
(id.mantissa1 == lim->ieee.mantissa1) &&
(id.exp == lim->ieee.exp)) {
vd = lim->d;
goto doneit;
}
}
vd.exp = id.exp - IEEE_DBL_BIAS + VAX_DBL_BIAS;
vd.mantissa1 = (id.mantissa1 >> 13);
vd.mantissa2 = ((id.mantissa1 & MASK(13)) << 3) |
(id.mantissa2 >> 29);
vd.mantissa3 = (id.mantissa2 >> 13);
vd.mantissa4 = (id.mantissa2 << 3);
doneit:
vd.sign = id.sign;
*dp = *((double *)&vd);
return (TRUE);
#endif
case XDR_FREE:
return (TRUE);
}
/* NOTREACHED */
return (FALSE);
}

262
freebsd/lib/libc/xdr/xdr_mem.c Normal file
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#include <machine/rtems-bsd-user-space.h>
/* $NetBSD: xdr_mem.c,v 1.15 2000/01/22 22:19:18 mycroft Exp $ */
/*
* 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(LIBC_SCCS) && !defined(lint)
static char *sccsid2 = "@(#)xdr_mem.c 1.19 87/08/11 Copyr 1984 Sun Micro";
static char *sccsid = "@(#)xdr_mem.c 2.1 88/07/29 4.0 RPCSRC";
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* xdr_mem.h, XDR implementation using memory buffers.
*
* Copyright (C) 1984, Sun Microsystems, Inc.
*
* If you have some data to be interpreted as external data representation
* or to be converted to external data representation in a memory buffer,
* then this is the package for you.
*
*/
#include "namespace.h"
#include <sys/types.h>
#include <netinet/in.h>
#include <string.h>
#include <rpc/types.h>
#include <rpc/xdr.h>
#include "un-namespace.h"
static void xdrmem_destroy(XDR *);
static bool_t xdrmem_getlong_aligned(XDR *, long *);
static bool_t xdrmem_putlong_aligned(XDR *, const long *);
static bool_t xdrmem_getlong_unaligned(XDR *, long *);
static bool_t xdrmem_putlong_unaligned(XDR *, const long *);
static bool_t xdrmem_getbytes(XDR *, char *, u_int);
static bool_t xdrmem_putbytes(XDR *, const char *, u_int);
/* XXX: w/64-bit pointers, u_int not enough! */
static u_int xdrmem_getpos(XDR *);
static bool_t xdrmem_setpos(XDR *, u_int);
static int32_t *xdrmem_inline_aligned(XDR *, u_int);
static int32_t *xdrmem_inline_unaligned(XDR *, u_int);
static const struct xdr_ops xdrmem_ops_aligned = {
xdrmem_getlong_aligned,
xdrmem_putlong_aligned,
xdrmem_getbytes,
xdrmem_putbytes,
xdrmem_getpos,
xdrmem_setpos,
xdrmem_inline_aligned,
xdrmem_destroy
};
static const struct xdr_ops xdrmem_ops_unaligned = {
xdrmem_getlong_unaligned,
xdrmem_putlong_unaligned,
xdrmem_getbytes,
xdrmem_putbytes,
xdrmem_getpos,
xdrmem_setpos,
xdrmem_inline_unaligned,
xdrmem_destroy
};
/*
* The procedure xdrmem_create initializes a stream descriptor for a
* memory buffer.
*/
void
xdrmem_create(xdrs, addr, size, op)
XDR *xdrs;
char *addr;
u_int size;
enum xdr_op op;
{
xdrs->x_op = op;
xdrs->x_ops = ((unsigned long)addr & (sizeof(int32_t) - 1))
? &xdrmem_ops_unaligned : &xdrmem_ops_aligned;
xdrs->x_private = xdrs->x_base = addr;
xdrs->x_handy = size;
}
/*ARGSUSED*/
static void
xdrmem_destroy(xdrs)
XDR *xdrs;
{
}
static bool_t
xdrmem_getlong_aligned(xdrs, lp)
XDR *xdrs;
long *lp;
{
if (xdrs->x_handy < sizeof(int32_t))
return (FALSE);
xdrs->x_handy -= sizeof(int32_t);
*lp = ntohl(*(u_int32_t *)xdrs->x_private);
xdrs->x_private = (char *)xdrs->x_private + sizeof(int32_t);
return (TRUE);
}
static bool_t
xdrmem_putlong_aligned(xdrs, lp)
XDR *xdrs;
const long *lp;
{
if (xdrs->x_handy < sizeof(int32_t))
return (FALSE);
xdrs->x_handy -= sizeof(int32_t);
*(u_int32_t *)xdrs->x_private = htonl((u_int32_t)*lp);
xdrs->x_private = (char *)xdrs->x_private + sizeof(int32_t);
return (TRUE);
}
static bool_t
xdrmem_getlong_unaligned(xdrs, lp)
XDR *xdrs;
long *lp;
{
u_int32_t l;
if (xdrs->x_handy < sizeof(int32_t))
return (FALSE);
xdrs->x_handy -= sizeof(int32_t);
memmove(&l, xdrs->x_private, sizeof(int32_t));
*lp = ntohl(l);
xdrs->x_private = (char *)xdrs->x_private + sizeof(int32_t);
return (TRUE);
}
static bool_t
xdrmem_putlong_unaligned(xdrs, lp)
XDR *xdrs;
const long *lp;
{
u_int32_t l;
if (xdrs->x_handy < sizeof(int32_t))
return (FALSE);
xdrs->x_handy -= sizeof(int32_t);
l = htonl((u_int32_t)*lp);
memmove(xdrs->x_private, &l, sizeof(int32_t));
xdrs->x_private = (char *)xdrs->x_private + sizeof(int32_t);
return (TRUE);
}
static bool_t
xdrmem_getbytes(xdrs, addr, len)
XDR *xdrs;
char *addr;
u_int len;
{
if (xdrs->x_handy < len)
return (FALSE);
xdrs->x_handy -= len;
memmove(addr, xdrs->x_private, len);
xdrs->x_private = (char *)xdrs->x_private + len;
return (TRUE);
}
static bool_t
xdrmem_putbytes(xdrs, addr, len)
XDR *xdrs;
const char *addr;
u_int len;
{
if (xdrs->x_handy < len)
return (FALSE);
xdrs->x_handy -= len;
memmove(xdrs->x_private, addr, len);
xdrs->x_private = (char *)xdrs->x_private + len;
return (TRUE);
}
static u_int
xdrmem_getpos(xdrs)
XDR *xdrs;
{
/* XXX w/64-bit pointers, u_int not enough! */
return (u_int)((u_long)xdrs->x_private - (u_long)xdrs->x_base);
}
static bool_t
xdrmem_setpos(xdrs, pos)
XDR *xdrs;
u_int pos;
{
char *newaddr = xdrs->x_base + pos;
char *lastaddr = (char *)xdrs->x_private + xdrs->x_handy;
if (newaddr > lastaddr)
return (FALSE);
xdrs->x_private = newaddr;
xdrs->x_handy = (u_int)(lastaddr - newaddr); /* XXX sizeof(u_int) <? sizeof(ptrdiff_t) */
return (TRUE);
}
static int32_t *
xdrmem_inline_aligned(xdrs, len)
XDR *xdrs;
u_int len;
{
int32_t *buf = 0;
if (xdrs->x_handy >= len) {
xdrs->x_handy -= len;
buf = (int32_t *)xdrs->x_private;
xdrs->x_private = (char *)xdrs->x_private + len;
}
return (buf);
}
/* ARGSUSED */
static int32_t *
xdrmem_inline_unaligned(xdrs, len)
XDR *xdrs;
u_int len;
{
return (0);
}

797
freebsd/lib/libc/xdr/xdr_rec.c Normal file
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@ -0,0 +1,797 @@
#include <machine/rtems-bsd-user-space.h>
/* $NetBSD: xdr_rec.c,v 1.18 2000/07/06 03:10:35 christos Exp $ */
/*
* 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(LIBC_SCCS) && !defined(lint)
static char *sccsid2 = "@(#)xdr_rec.c 1.21 87/08/11 Copyr 1984 Sun Micro";
static char *sccsid = "@(#)xdr_rec.c 2.2 88/08/01 4.0 RPCSRC";
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* xdr_rec.c, Implements TCP/IP based XDR streams with a "record marking"
* layer above tcp (for rpc's use).
*
* Copyright (C) 1984, Sun Microsystems, Inc.
*
* These routines interface XDRSTREAMS to a tcp/ip connection.
* There is a record marking layer between the xdr stream
* and the tcp transport level. A record is composed on one or more
* record fragments. A record fragment is a thirty-two bit header followed
* by n bytes of data, where n is contained in the header. The header
* is represented as a htonl(u_long). Thegh order bit encodes
* whether or not the fragment is the last fragment of the record
* (1 => fragment is last, 0 => more fragments to follow.
* The other 31 bits encode the byte length of the fragment.
*/
#include "namespace.h"
#include <sys/types.h>
#include <netinet/in.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <rpc/types.h>
#include <rpc/xdr.h>
#include <rpc/auth.h>
#include <rpc/svc.h>
#include <rpc/clnt.h>
#include <sys/stddef.h>
#include "un-namespace.h"
#include "rpc_com.h"
static bool_t xdrrec_getlong(XDR *, long *);
static bool_t xdrrec_putlong(XDR *, const long *);
static bool_t xdrrec_getbytes(XDR *, char *, u_int);
static bool_t xdrrec_putbytes(XDR *, const char *, u_int);
static u_int xdrrec_getpos(XDR *);
static bool_t xdrrec_setpos(XDR *, u_int);
static int32_t *xdrrec_inline(XDR *, u_int);
static void xdrrec_destroy(XDR *);
static const struct xdr_ops xdrrec_ops = {
xdrrec_getlong,
xdrrec_putlong,
xdrrec_getbytes,
xdrrec_putbytes,
xdrrec_getpos,
xdrrec_setpos,
xdrrec_inline,
xdrrec_destroy
};
/*
* A record is composed of one or more record fragments.
* A record fragment is a four-byte header followed by zero to
* 2**32-1 bytes. The header is treated as a long unsigned and is
* encode/decoded to the network via htonl/ntohl. The low order 31 bits
* are a byte count of the fragment. The highest order bit is a boolean:
* 1 => this fragment is the last fragment of the record,
* 0 => this fragment is followed by more fragment(s).
*
* The fragment/record machinery is not general; it is constructed to
* meet the needs of xdr and rpc based on tcp.
*/
#define LAST_FRAG ((u_int32_t)(1 << 31))
typedef struct rec_strm {
char *tcp_handle;
/*
* out-goung bits
*/
int (*writeit)(void *, void *, int);
char *out_base; /* output buffer (points to frag header) */
char *out_finger; /* next output position */
char *out_boundry; /* data cannot up to this address */
u_int32_t *frag_header; /* beginning of curren fragment */
bool_t frag_sent; /* true if buffer sent in middle of record */
/*
* in-coming bits
*/
int (*readit)(void *, void *, int);
u_long in_size; /* fixed size of the input buffer */
char *in_base;
char *in_finger; /* location of next byte to be had */
char *in_boundry; /* can read up to this location */
long fbtbc; /* fragment bytes to be consumed */
bool_t last_frag;
u_int sendsize;
u_int recvsize;
bool_t nonblock;
bool_t in_haveheader;
u_int32_t in_header;
char *in_hdrp;
int in_hdrlen;
int in_reclen;
int in_received;
int in_maxrec;
} RECSTREAM;
static u_int fix_buf_size(u_int);
static bool_t flush_out(RECSTREAM *, bool_t);
static bool_t fill_input_buf(RECSTREAM *);
static bool_t get_input_bytes(RECSTREAM *, char *, int);
static bool_t set_input_fragment(RECSTREAM *);
static bool_t skip_input_bytes(RECSTREAM *, long);
static bool_t realloc_stream(RECSTREAM *, int);
/*
* Create an xdr handle for xdrrec
* xdrrec_create fills in xdrs. Sendsize and recvsize are
* send and recv buffer sizes (0 => use default).
* tcp_handle is an opaque handle that is passed as the first parameter to
* the procedures readit and writeit. Readit and writeit are read and
* write respectively. They are like the system
* calls expect that they take an opaque handle rather than an fd.
*/
void
xdrrec_create(xdrs, sendsize, recvsize, tcp_handle, readit, writeit)
XDR *xdrs;
u_int sendsize;
u_int recvsize;
void *tcp_handle;
/* like read, but pass it a tcp_handle, not sock */
int (*readit)(void *, void *, int);
/* like write, but pass it a tcp_handle, not sock */
int (*writeit)(void *, void *, int);
{
RECSTREAM *rstrm = mem_alloc(sizeof(RECSTREAM));
if (rstrm == NULL) {
warnx("xdrrec_create: out of memory");
/*
* This is bad. Should rework xdrrec_create to
* return a handle, and in this case return NULL
*/
return;
}
rstrm->sendsize = sendsize = fix_buf_size(sendsize);
rstrm->out_base = mem_alloc(rstrm->sendsize);
if (rstrm->out_base == NULL) {
warnx("xdrrec_create: out of memory");
mem_free(rstrm, sizeof(RECSTREAM));
return;
}
rstrm->recvsize = recvsize = fix_buf_size(recvsize);
rstrm->in_base = mem_alloc(recvsize);
if (rstrm->in_base == NULL) {
warnx("xdrrec_create: out of memory");
mem_free(rstrm->out_base, sendsize);
mem_free(rstrm, sizeof(RECSTREAM));
return;
}
/*
* now the rest ...
*/
xdrs->x_ops = &xdrrec_ops;
xdrs->x_private = rstrm;
rstrm->tcp_handle = tcp_handle;
rstrm->readit = readit;
rstrm->writeit = writeit;
rstrm->out_finger = rstrm->out_boundry = rstrm->out_base;
rstrm->frag_header = (u_int32_t *)(void *)rstrm->out_base;
rstrm->out_finger += sizeof(u_int32_t);
rstrm->out_boundry += sendsize;
rstrm->frag_sent = FALSE;
rstrm->in_size = recvsize;
rstrm->in_boundry = rstrm->in_base;
rstrm->in_finger = (rstrm->in_boundry += recvsize);
rstrm->fbtbc = 0;
rstrm->last_frag = TRUE;
rstrm->in_haveheader = FALSE;
rstrm->in_hdrlen = 0;
rstrm->in_hdrp = (char *)(void *)&rstrm->in_header;
rstrm->nonblock = FALSE;
rstrm->in_reclen = 0;
rstrm->in_received = 0;
}
/*
* The reoutines defined below are the xdr ops which will go into the
* xdr handle filled in by xdrrec_create.
*/
static bool_t
xdrrec_getlong(xdrs, lp)
XDR *xdrs;
long *lp;
{
RECSTREAM *rstrm = (RECSTREAM *)(xdrs->x_private);
int32_t *buflp = (int32_t *)(void *)(rstrm->in_finger);
int32_t mylong;
/* first try the inline, fast case */
if ((rstrm->fbtbc >= sizeof(int32_t)) &&
(((long)rstrm->in_boundry - (long)buflp) >= sizeof(int32_t))) {
*lp = (long)ntohl((u_int32_t)(*buflp));
rstrm->fbtbc -= sizeof(int32_t);
rstrm->in_finger += sizeof(int32_t);
} else {
if (! xdrrec_getbytes(xdrs, (char *)(void *)&mylong,
sizeof(int32_t)))
return (FALSE);
*lp = (long)ntohl((u_int32_t)mylong);
}
return (TRUE);
}
static bool_t
xdrrec_putlong(xdrs, lp)
XDR *xdrs;
const long *lp;
{
RECSTREAM *rstrm = (RECSTREAM *)(xdrs->x_private);
int32_t *dest_lp = ((int32_t *)(void *)(rstrm->out_finger));
if ((rstrm->out_finger += sizeof(int32_t)) > rstrm->out_boundry) {
/*
* this case should almost never happen so the code is
* inefficient
*/
rstrm->out_finger -= sizeof(int32_t);
rstrm->frag_sent = TRUE;
if (! flush_out(rstrm, FALSE))
return (FALSE);
dest_lp = ((int32_t *)(void *)(rstrm->out_finger));
rstrm->out_finger += sizeof(int32_t);
}
*dest_lp = (int32_t)htonl((u_int32_t)(*lp));
return (TRUE);
}
static bool_t /* must manage buffers, fragments, and records */
xdrrec_getbytes(xdrs, addr, len)
XDR *xdrs;
char *addr;
u_int len;
{
RECSTREAM *rstrm = (RECSTREAM *)(xdrs->x_private);
int current;
while (len > 0) {
current = (int)rstrm->fbtbc;
if (current == 0) {
if (rstrm->last_frag)
return (FALSE);
if (! set_input_fragment(rstrm))
return (FALSE);
continue;
}
current = (len < current) ? len : current;
if (! get_input_bytes(rstrm, addr, current))
return (FALSE);
addr += current;
rstrm->fbtbc -= current;
len -= current;
}
return (TRUE);
}
static bool_t
xdrrec_putbytes(xdrs, addr, len)
XDR *xdrs;
const char *addr;
u_int len;
{
RECSTREAM *rstrm = (RECSTREAM *)(xdrs->x_private);
size_t current;
while (len > 0) {
current = (size_t)((u_long)rstrm->out_boundry -
(u_long)rstrm->out_finger);
current = (len < current) ? len : current;
memmove(rstrm->out_finger, addr, current);
rstrm->out_finger += current;
addr += current;
len -= current;
if (rstrm->out_finger == rstrm->out_boundry) {
rstrm->frag_sent = TRUE;
if (! flush_out(rstrm, FALSE))
return (FALSE);
}
}
return (TRUE);
}
static u_int
xdrrec_getpos(xdrs)
XDR *xdrs;
{
RECSTREAM *rstrm = (RECSTREAM *)xdrs->x_private;
off_t pos;
pos = lseek((int)(u_long)rstrm->tcp_handle, (off_t)0, 1);
if (pos == -1)
pos = 0;
switch (xdrs->x_op) {
case XDR_ENCODE:
pos += rstrm->out_finger - rstrm->out_base;
break;
case XDR_DECODE:
pos -= rstrm->in_boundry - rstrm->in_finger;
break;
default:
pos = (off_t) -1;
break;
}
return ((u_int) pos);
}
static bool_t
xdrrec_setpos(xdrs, pos)
XDR *xdrs;
u_int pos;
{
RECSTREAM *rstrm = (RECSTREAM *)xdrs->x_private;
u_int currpos = xdrrec_getpos(xdrs);
int delta = currpos - pos;
char *newpos;
if ((int)currpos != -1)
switch (xdrs->x_op) {
case XDR_ENCODE:
newpos = rstrm->out_finger - delta;
if ((newpos > (char *)(void *)(rstrm->frag_header)) &&
(newpos < rstrm->out_boundry)) {
rstrm->out_finger = newpos;
return (TRUE);
}
break;
case XDR_DECODE:
newpos = rstrm->in_finger - delta;
if ((delta < (int)(rstrm->fbtbc)) &&
(newpos <= rstrm->in_boundry) &&
(newpos >= rstrm->in_base)) {
rstrm->in_finger = newpos;
rstrm->fbtbc -= delta;
return (TRUE);
}
break;
case XDR_FREE:
break;
}
return (FALSE);
}
static int32_t *
xdrrec_inline(xdrs, len)
XDR *xdrs;
u_int len;
{
RECSTREAM *rstrm = (RECSTREAM *)xdrs->x_private;
int32_t *buf = NULL;
switch (xdrs->x_op) {
case XDR_ENCODE:
if ((rstrm->out_finger + len) <= rstrm->out_boundry) {
buf = (int32_t *)(void *)rstrm->out_finger;
rstrm->out_finger += len;
}
break;
case XDR_DECODE:
if ((len <= rstrm->fbtbc) &&
((rstrm->in_finger + len) <= rstrm->in_boundry)) {
buf = (int32_t *)(void *)rstrm->in_finger;
rstrm->fbtbc -= len;
rstrm->in_finger += len;
}
break;
case XDR_FREE:
break;
}
return (buf);
}
static void
xdrrec_destroy(xdrs)
XDR *xdrs;
{
RECSTREAM *rstrm = (RECSTREAM *)xdrs->x_private;
mem_free(rstrm->out_base, rstrm->sendsize);
mem_free(rstrm->in_base, rstrm->recvsize);
mem_free(rstrm, sizeof(RECSTREAM));
}
/*
* Exported routines to manage xdr records
*/
/*
* Before reading (deserializing from the stream, one should always call
* this procedure to guarantee proper record alignment.
*/
bool_t
xdrrec_skiprecord(xdrs)
XDR *xdrs;
{
RECSTREAM *rstrm = (RECSTREAM *)(xdrs->x_private);
enum xprt_stat xstat;
if (rstrm->nonblock) {
if (__xdrrec_getrec(xdrs, &xstat, FALSE)) {
rstrm->fbtbc = 0;
return TRUE;
}
if (rstrm->in_finger == rstrm->in_boundry &&
xstat == XPRT_MOREREQS) {
rstrm->fbtbc = 0;
return TRUE;
}
return FALSE;
}
while (rstrm->fbtbc > 0 || (! rstrm->last_frag)) {
if (! skip_input_bytes(rstrm, rstrm->fbtbc))
return (FALSE);
rstrm->fbtbc = 0;
if ((! rstrm->last_frag) && (! set_input_fragment(rstrm)))
return (FALSE);
}
rstrm->last_frag = FALSE;
return (TRUE);
}
/*
* Look ahead function.
* Returns TRUE iff there is no more input in the buffer
* after consuming the rest of the current record.
*/
bool_t
xdrrec_eof(xdrs)
XDR *xdrs;
{
RECSTREAM *rstrm = (RECSTREAM *)(xdrs->x_private);
while (rstrm->fbtbc > 0 || (! rstrm->last_frag)) {
if (! skip_input_bytes(rstrm, rstrm->fbtbc))
return (TRUE);
rstrm->fbtbc = 0;
if ((! rstrm->last_frag) && (! set_input_fragment(rstrm)))
return (TRUE);
}
if (rstrm->in_finger == rstrm->in_boundry)
return (TRUE);
return (FALSE);
}
/*
* The client must tell the package when an end-of-record has occurred.
* The second paraemters tells whether the record should be flushed to the
* (output) tcp stream. (This let's the package support batched or
* pipelined procedure calls.) TRUE => immmediate flush to tcp connection.
*/
bool_t
xdrrec_endofrecord(xdrs, sendnow)
XDR *xdrs;
bool_t sendnow;
{
RECSTREAM *rstrm = (RECSTREAM *)(xdrs->x_private);
u_long len; /* fragment length */
if (sendnow || rstrm->frag_sent ||
((u_long)rstrm->out_finger + sizeof(u_int32_t) >=
(u_long)rstrm->out_boundry)) {
rstrm->frag_sent = FALSE;
return (flush_out(rstrm, TRUE));
}
len = (u_long)(rstrm->out_finger) - (u_long)(rstrm->frag_header) -
sizeof(u_int32_t);
*(rstrm->frag_header) = htonl((u_int32_t)len | LAST_FRAG);
rstrm->frag_header = (u_int32_t *)(void *)rstrm->out_finger;
rstrm->out_finger += sizeof(u_int32_t);
return (TRUE);
}
/*
* Fill the stream buffer with a record for a non-blocking connection.
* Return true if a record is available in the buffer, false if not.
*/
bool_t
__xdrrec_getrec(xdrs, statp, expectdata)
XDR *xdrs;
enum xprt_stat *statp;
bool_t expectdata;
{
RECSTREAM *rstrm = (RECSTREAM *)(xdrs->x_private);
ssize_t n;
int fraglen;
if (!rstrm->in_haveheader) {
n = rstrm->readit(rstrm->tcp_handle, rstrm->in_hdrp,
(int)sizeof (rstrm->in_header) - rstrm->in_hdrlen);
if (n == 0) {
*statp = expectdata ? XPRT_DIED : XPRT_IDLE;
return FALSE;
}
if (n < 0) {
*statp = XPRT_DIED;
return FALSE;
}
rstrm->in_hdrp += n;
rstrm->in_hdrlen += n;
if (rstrm->in_hdrlen < sizeof (rstrm->in_header)) {
*statp = XPRT_MOREREQS;
return FALSE;
}
rstrm->in_header = ntohl(rstrm->in_header);
fraglen = (int)(rstrm->in_header & ~LAST_FRAG);
if (fraglen == 0 || fraglen > rstrm->in_maxrec ||
(rstrm->in_reclen + fraglen) > rstrm->in_maxrec) {
*statp = XPRT_DIED;
return FALSE;
}
rstrm->in_reclen += fraglen;
if (rstrm->in_reclen > rstrm->recvsize)
realloc_stream(rstrm, rstrm->in_reclen);
if (rstrm->in_header & LAST_FRAG) {
rstrm->in_header &= ~LAST_FRAG;
rstrm->last_frag = TRUE;
}
/*
* We can only reasonably expect to read once from a
* non-blocking stream. Reading the fragment header
* may have drained the stream.
*/
expectdata = FALSE;
}
n = rstrm->readit(rstrm->tcp_handle,
rstrm->in_base + rstrm->in_received,
(rstrm->in_reclen - rstrm->in_received));
if (n < 0) {
*statp = XPRT_DIED;
return FALSE;
}
if (n == 0) {
*statp = expectdata ? XPRT_DIED : XPRT_IDLE;
return FALSE;
}
rstrm->in_received += n;
if (rstrm->in_received == rstrm->in_reclen) {
rstrm->in_haveheader = FALSE;
rstrm->in_hdrp = (char *)(void *)&rstrm->in_header;
rstrm->in_hdrlen = 0;
if (rstrm->last_frag) {
rstrm->fbtbc = rstrm->in_reclen;
rstrm->in_boundry = rstrm->in_base + rstrm->in_reclen;
rstrm->in_finger = rstrm->in_base;
rstrm->in_reclen = rstrm->in_received = 0;
*statp = XPRT_MOREREQS;
return TRUE;
}
}
*statp = XPRT_MOREREQS;
return FALSE;
}
bool_t
__xdrrec_setnonblock(xdrs, maxrec)
XDR *xdrs;
int maxrec;
{
RECSTREAM *rstrm = (RECSTREAM *)(xdrs->x_private);
rstrm->nonblock = TRUE;
if (maxrec == 0)
maxrec = rstrm->recvsize;
rstrm->in_maxrec = maxrec;
return TRUE;
}
/*
* Internal useful routines
*/
static bool_t
flush_out(rstrm, eor)
RECSTREAM *rstrm;
bool_t eor;
{
u_int32_t eormask = (eor == TRUE) ? LAST_FRAG : 0;
u_int32_t len = (u_int32_t)((u_long)(rstrm->out_finger) -
(u_long)(rstrm->frag_header) - sizeof(u_int32_t));
*(rstrm->frag_header) = htonl(len | eormask);
len = (u_int32_t)((u_long)(rstrm->out_finger) -
(u_long)(rstrm->out_base));
if ((*(rstrm->writeit))(rstrm->tcp_handle, rstrm->out_base, (int)len)
!= (int)len)
return (FALSE);
rstrm->frag_header = (u_int32_t *)(void *)rstrm->out_base;
rstrm->out_finger = (char *)rstrm->out_base + sizeof(u_int32_t);
return (TRUE);
}
static bool_t /* knows nothing about records! Only about input buffers */
fill_input_buf(rstrm)
RECSTREAM *rstrm;
{
char *where;
u_int32_t i;
int len;
if (rstrm->nonblock)
return FALSE;
where = rstrm->in_base;
i = (u_int32_t)((u_long)rstrm->in_boundry % BYTES_PER_XDR_UNIT);
where += i;
len = (u_int32_t)(rstrm->in_size - i);
if ((len = (*(rstrm->readit))(rstrm->tcp_handle, where, len)) == -1)
return (FALSE);
rstrm->in_finger = where;
where += len;
rstrm->in_boundry = where;
return (TRUE);
}
static bool_t /* knows nothing about records! Only about input buffers */
get_input_bytes(rstrm, addr, len)
RECSTREAM *rstrm;
char *addr;
int len;
{
size_t current;
if (rstrm->nonblock) {
if (len > (int)(rstrm->in_boundry - rstrm->in_finger))
return FALSE;
memcpy(addr, rstrm->in_finger, (size_t)len);
rstrm->in_finger += len;
return TRUE;
}
while (len > 0) {
current = (size_t)((long)rstrm->in_boundry -
(long)rstrm->in_finger);
if (current == 0) {
if (! fill_input_buf(rstrm))
return (FALSE);
continue;
}
current = (len < current) ? len : current;
memmove(addr, rstrm->in_finger, current);
rstrm->in_finger += current;
addr += current;
len -= current;
}
return (TRUE);
}
static bool_t /* next two bytes of the input stream are treated as a header */
set_input_fragment(rstrm)
RECSTREAM *rstrm;
{
u_int32_t header;
if (rstrm->nonblock)
return FALSE;
if (! get_input_bytes(rstrm, (char *)(void *)&header, sizeof(header)))
return (FALSE);
header = ntohl(header);
rstrm->last_frag = ((header & LAST_FRAG) == 0) ? FALSE : TRUE;
/*
* Sanity check. Try not to accept wildly incorrect
* record sizes. Unfortunately, the only record size
* we can positively identify as being 'wildly incorrect'
* is zero. Ridiculously large record sizes may look wrong,
* but we don't have any way to be certain that they aren't
* what the client actually intended to send us.
*/
if (header == 0)
return(FALSE);
rstrm->fbtbc = header & (~LAST_FRAG);
return (TRUE);
}
static bool_t /* consumes input bytes; knows nothing about records! */
skip_input_bytes(rstrm, cnt)
RECSTREAM *rstrm;
long cnt;
{
u_int32_t current;
while (cnt > 0) {
current = (size_t)((long)rstrm->in_boundry -
(long)rstrm->in_finger);
if (current == 0) {
if (! fill_input_buf(rstrm))
return (FALSE);
continue;
}
current = (u_int32_t)((cnt < current) ? cnt : current);
rstrm->in_finger += current;
cnt -= current;
}
return (TRUE);
}
static u_int
fix_buf_size(s)
u_int s;
{
if (s < 100)
s = 4000;
return (RNDUP(s));
}
/*
* Reallocate the input buffer for a non-block stream.
*/
static bool_t
realloc_stream(rstrm, size)
RECSTREAM *rstrm;
int size;
{
ptrdiff_t diff;
char *buf;
if (size > rstrm->recvsize) {
buf = realloc(rstrm->in_base, (size_t)size);
if (buf == NULL)
return FALSE;
diff = buf - rstrm->in_base;
rstrm->in_finger += diff;
rstrm->in_base = buf;
rstrm->in_boundry = buf + size;
rstrm->recvsize = size;
rstrm->in_size = size;
}
return TRUE;
}

145
freebsd/lib/libc/xdr/xdr_reference.c Normal file
View File

@ -0,0 +1,145 @@
#include <machine/rtems-bsd-user-space.h>
/* $NetBSD: xdr_reference.c,v 1.13 2000/01/22 22:19:18 mycroft Exp $ */
/*
* 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(LIBC_SCCS) && !defined(lint)
static char *sccsid2 = "@(#)xdr_reference.c 1.11 87/08/11 SMI";
static char *sccsid = "@(#)xdr_reference.c 2.1 88/07/29 4.0 RPCSRC";
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* xdr_reference.c, Generic XDR routines impelmentation.
*
* Copyright (C) 1987, Sun Microsystems, Inc.
*
* These are the "non-trivial" xdr primitives used to serialize and de-serialize
* "pointers". See xdr.h for more info on the interface to xdr.
*/
#include "namespace.h"
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <rpc/types.h>
#include <rpc/xdr.h>
#include "libc_private.h"
/*
* XDR an indirect pointer
* xdr_reference is for recursively translating a structure that is
* referenced by a pointer inside the structure that is currently being
* translated. pp references a pointer to storage. If *pp is null
* the necessary storage is allocated.
* size is the sizeof the referneced structure.
* proc is the routine to handle the referenced structure.
*/
bool_t
xdr_reference(xdrs, pp, size, proc)
XDR *xdrs;
caddr_t *pp; /* the pointer to work on */
u_int size; /* size of the object pointed to */
xdrproc_t proc; /* xdr routine to handle the object */
{
caddr_t loc = *pp;
bool_t stat;
if (loc == NULL)
switch (xdrs->x_op) {
case XDR_FREE:
return (TRUE);
case XDR_DECODE:
*pp = loc = (caddr_t) mem_alloc(size);
if (loc == NULL) {
warnx("xdr_reference: out of memory");
return (FALSE);
}
memset(loc, 0, size);
break;
case XDR_ENCODE:
break;
}
stat = (*proc)(xdrs, loc);
if (xdrs->x_op == XDR_FREE) {
mem_free(loc, size);
*pp = NULL;
}
return (stat);
}
/*
* xdr_pointer():
*
* XDR a pointer to a possibly recursive data structure. This
* differs with xdr_reference in that it can serialize/deserialiaze
* trees correctly.
*
* What's sent is actually a union:
*
* union object_pointer switch (boolean b) {
* case TRUE: object_data data;
* case FALSE: void nothing;
* }
*
* > objpp: Pointer to the pointer to the object.
* > obj_size: size of the object.
* > xdr_obj: routine to XDR an object.
*
*/
bool_t
xdr_pointer(xdrs,objpp,obj_size,xdr_obj)
XDR *xdrs;
char **objpp;
u_int obj_size;
xdrproc_t xdr_obj;
{
bool_t more_data;
more_data = (*objpp != NULL);
if (! xdr_bool(xdrs,&more_data)) {
return (FALSE);
}
if (! more_data) {
*objpp = NULL;
return (TRUE);
}
return (xdr_reference(xdrs,objpp,obj_size,xdr_obj));
}

170
freebsd/lib/libc/xdr/xdr_sizeof.c Normal file
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#include <machine/rtems-bsd-user-space.h>
/*
* 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 <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "namespace.h"
#include <rpc/types.h>
#include <rpc/xdr.h>
#include <sys/types.h>
#include <stdlib.h>
#include "un-namespace.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;
u_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;
u_int len;
{
if (len == 0) {
return (NULL);
}
if (xdrs->x_op != XDR_ENCODE) {
return (NULL);
}
if (len < (u_int)(uintptr_t)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)(uintptr_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);
}

198
freebsd/lib/libc/xdr/xdr_stdio.c Normal file
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#include <machine/rtems-bsd-user-space.h>
/* $NetBSD: xdr_stdio.c,v 1.14 2000/01/22 22:19:19 mycroft Exp $ */
/*
* 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(LIBC_SCCS) && !defined(lint)
static char *sccsid2 = "@(#)xdr_stdio.c 1.16 87/08/11 Copyr 1984 Sun Micro";
static char *sccsid = "@(#)xdr_stdio.c 2.1 88/07/29 4.0 RPCSRC";
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* xdr_stdio.c, XDR implementation on standard i/o file.
*
* Copyright (C) 1984, Sun Microsystems, Inc.
*
* This set of routines implements a XDR on a stdio stream.
* XDR_ENCODE serializes onto the stream, XDR_DECODE de-serializes
* from the stream.
*/
#include "namespace.h"
#include <stdio.h>
#include <arpa/inet.h>
#include <rpc/types.h>
#include <rpc/xdr.h>
#include "un-namespace.h"
static void xdrstdio_destroy(XDR *);
static bool_t xdrstdio_getlong(XDR *, long *);
static bool_t xdrstdio_putlong(XDR *, const long *);
static bool_t xdrstdio_getbytes(XDR *, char *, u_int);
static bool_t xdrstdio_putbytes(XDR *, const char *, u_int);
static u_int xdrstdio_getpos(XDR *);
static bool_t xdrstdio_setpos(XDR *, u_int);
static int32_t *xdrstdio_inline(XDR *, u_int);
/*
* Ops vector for stdio type XDR
*/
static const struct xdr_ops xdrstdio_ops = {
xdrstdio_getlong, /* deseraialize a long int */
xdrstdio_putlong, /* seraialize a long int */
xdrstdio_getbytes, /* deserialize counted bytes */
xdrstdio_putbytes, /* serialize counted bytes */
xdrstdio_getpos, /* get offset in the stream */
xdrstdio_setpos, /* set offset in the stream */
xdrstdio_inline, /* prime stream for inline macros */
xdrstdio_destroy /* destroy stream */
};
/*
* Initialize a stdio xdr stream.
* Sets the xdr stream handle xdrs for use on the stream file.
* Operation flag is set to op.
*/
void
xdrstdio_create(xdrs, file, op)
XDR *xdrs;
FILE *file;
enum xdr_op op;
{
xdrs->x_op = op;
xdrs->x_ops = &xdrstdio_ops;
xdrs->x_private = file;
xdrs->x_handy = 0;
xdrs->x_base = 0;
}
/*
* Destroy a stdio xdr stream.
* Cleans up the xdr stream handle xdrs previously set up by xdrstdio_create.
*/
static void
xdrstdio_destroy(xdrs)
XDR *xdrs;
{
(void)fflush((FILE *)xdrs->x_private);
/* XXX: should we close the file ?? */
}
static bool_t
xdrstdio_getlong(xdrs, lp)
XDR *xdrs;
long *lp;
{
u_int32_t temp;
if (fread(&temp, sizeof(int32_t), 1, (FILE *)xdrs->x_private) != 1)
return (FALSE);
*lp = (long)ntohl(temp);
return (TRUE);
}
static bool_t
xdrstdio_putlong(xdrs, lp)
XDR *xdrs;
const long *lp;
{
int32_t mycopy = htonl((u_int32_t)*lp);
if (fwrite(&mycopy, sizeof(int32_t), 1, (FILE *)xdrs->x_private) != 1)
return (FALSE);
return (TRUE);
}
static bool_t
xdrstdio_getbytes(xdrs, addr, len)
XDR *xdrs;
char *addr;
u_int len;
{
if ((len != 0) && (fread(addr, (size_t)len, 1, (FILE *)xdrs->x_private) != 1))
return (FALSE);
return (TRUE);
}
static bool_t
xdrstdio_putbytes(xdrs, addr, len)
XDR *xdrs;
const char *addr;
u_int len;
{
if ((len != 0) && (fwrite(addr, (size_t)len, 1,
(FILE *)xdrs->x_private) != 1))
return (FALSE);
return (TRUE);
}
static u_int
xdrstdio_getpos(xdrs)
XDR *xdrs;
{
return ((u_int) ftell((FILE *)xdrs->x_private));
}
static bool_t
xdrstdio_setpos(xdrs, pos)
XDR *xdrs;
u_int pos;
{
return ((fseek((FILE *)xdrs->x_private, (long)pos, 0) < 0) ?
FALSE : TRUE);
}
/* ARGSUSED */
static int32_t *
xdrstdio_inline(xdrs, len)
XDR *xdrs;
u_int len;
{
/*
* Must do some work to implement this: must insure
* enough data in the underlying stdio buffer,
* that the buffer is aligned so that we can indirect through a
* long *, and stuff this pointer in xdrs->x_buf. Doing
* a fread or fwrite to a scratch buffer would defeat
* most of the gains to be had here and require storage
* management on this buffer, so we don't do this.
*/
return (NULL);
}