fd4c894c23
is now u_int, not int. (struct XDR.x_handy): Now u_int, not int. * sunrpc/xdr_mem.c: Include <limits.h>. (xdrmem_getlong, xdrmem_putlong, xdrmem_getbytes, xdrmem_putbytes, xdrmem_inline, xdrmem_getint32, xdrmem_putint32): x_handy is now unsigned, not signed. Do not decrement x_handy if no change is made. (xdrmem_setpos): Check for int overflow. * sunrpc/xdr_sizeof.c (x_inline): 2nd arg is now unsigned. (xdr_sizeof): Remove cast that is now unnecessary, now that x_handy is unsigned.
164 lines
3.8 KiB
C
164 lines
3.8 KiB
C
/*
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* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
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* unrestricted use provided that this legend is included on all tape
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* media and as a part of the software program in whole or part. Users
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* may copy or modify Sun RPC without charge, but are not authorized
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* to license or distribute it to anyone else except as part of a product or
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* program developed by the user.
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*
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* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
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* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
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*
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* Sun RPC is provided with no support and without any obligation on the
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* part of Sun Microsystems, Inc. to assist in its use, correction,
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* modification or enhancement.
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*
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* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
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* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
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* OR ANY PART THEREOF.
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*
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* In no event will Sun Microsystems, Inc. be liable for any lost revenue
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* or profits or other special, indirect and consequential damages, even if
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* Sun has been advised of the possibility of such damages.
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*
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* Sun Microsystems, Inc.
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* 2550 Garcia Avenue
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* Mountain View, California 94043
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*/
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/*
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* xdr_sizeof.c
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*
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* Copyright 1990 Sun Microsystems, Inc.
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*
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* General purpose routine to see how much space something will use
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* when serialized using XDR.
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*/
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#include <rpc/types.h>
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#include <rpc/xdr.h>
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#include <sys/types.h>
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#include <stdlib.h>
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/* ARGSUSED */
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static bool_t
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x_putlong (XDR *xdrs, const long *longp)
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{
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xdrs->x_handy += BYTES_PER_XDR_UNIT;
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return TRUE;
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}
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/* ARGSUSED */
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static bool_t
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x_putbytes (XDR *xdrs, const char *bp, u_int len)
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{
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xdrs->x_handy += len;
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return TRUE;
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}
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static u_int
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x_getpostn (const XDR *xdrs)
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{
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return xdrs->x_handy;
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}
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/* ARGSUSED */
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static bool_t
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x_setpostn (XDR *xdrs, u_int len)
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{
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/* This is not allowed */
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return FALSE;
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}
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static int32_t *
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x_inline (XDR *xdrs, u_int len)
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{
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if (len == 0)
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return NULL;
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if (xdrs->x_op != XDR_ENCODE)
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return NULL;
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if (len < (u_int) (long int) xdrs->x_base)
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{
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/* x_private was already allocated */
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xdrs->x_handy += len;
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return (int32_t *) xdrs->x_private;
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}
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else
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{
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/* Free the earlier space and allocate new area */
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if (xdrs->x_private)
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free (xdrs->x_private);
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if ((xdrs->x_private = (caddr_t) malloc (len)) == NULL)
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{
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xdrs->x_base = 0;
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return NULL;
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}
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xdrs->x_base = (void *) (long) len;
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xdrs->x_handy += len;
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return (int32_t *) xdrs->x_private;
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}
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}
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static int
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harmless (void)
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{
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/* Always return FALSE/NULL, as the case may be */
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return 0;
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}
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static void
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x_destroy (XDR *xdrs)
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{
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xdrs->x_handy = 0;
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xdrs->x_base = 0;
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if (xdrs->x_private)
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{
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free (xdrs->x_private);
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xdrs->x_private = NULL;
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}
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return;
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}
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static bool_t
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x_putint32 (XDR *xdrs, const int32_t *int32p)
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{
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xdrs->x_handy += BYTES_PER_XDR_UNIT;
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return TRUE;
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}
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unsigned long
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xdr_sizeof (xdrproc_t func, void *data)
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{
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XDR x;
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struct xdr_ops ops;
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bool_t stat;
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/* to stop ANSI-C compiler from complaining */
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typedef bool_t (*dummyfunc1) (XDR *, long *);
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typedef bool_t (*dummyfunc2) (XDR *, caddr_t, u_int);
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typedef bool_t (*dummyfunc3) (XDR *, int32_t *);
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ops.x_putlong = x_putlong;
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ops.x_putbytes = x_putbytes;
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ops.x_inline = x_inline;
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ops.x_getpostn = x_getpostn;
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ops.x_setpostn = x_setpostn;
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ops.x_destroy = x_destroy;
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ops.x_putint32 = x_putint32;
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/* the other harmless ones */
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ops.x_getlong = (dummyfunc1) harmless;
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ops.x_getbytes = (dummyfunc2) harmless;
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ops.x_getint32 = (dummyfunc3) harmless;
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x.x_op = XDR_ENCODE;
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x.x_ops = &ops;
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x.x_handy = 0;
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x.x_private = (caddr_t) NULL;
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x.x_base = (caddr_t) 0;
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stat = func (&x, data);
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if (x.x_private)
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free (x.x_private);
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return stat == TRUE ? x.x_handy : 0;
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}
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