diff options
Diffstat (limited to 'contrib/sunrpc')
| -rw-r--r-- | contrib/sunrpc/xdr_sizeof.c | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/contrib/sunrpc/xdr_sizeof.c b/contrib/sunrpc/xdr_sizeof.c new file mode 100644 index 00000000000..ca1f7bf0a5e --- /dev/null +++ b/contrib/sunrpc/xdr_sizeof.c @@ -0,0 +1,204 @@ +/* + * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. + * + * @APPLE_LICENSE_HEADER_START@ + * + * Portions Copyright (c) 1999 Apple Computer, Inc. All Rights + * Reserved. This file contains Original Code and/or Modifications of + * Original Code as defined in and that are subject to the Apple Public + * Source License Version 1.1 (the "License"). You may not use this file + * except in compliance with the License. Please obtain a copy of the + * License at http://www.apple.com/publicsource and read it before using + * this file. + * + * The Original Code and all software distributed under the License are + * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, + * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the + * License for the specific language governing rights and limitations + * under the License. + * + * @APPLE_LICENSE_HEADER_END@ + */ + +/* + * 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. + */ + +#ifdef GF_DARWIN_HOST_OS + +#include <rpc/types.h> +#include <rpc/xdr.h> +#include <sys/types.h> +#include <sys/cdefs.h> + +#include <stdlib.h> + +/* ARGSUSED */ +#ifdef GF_DARWIN_HOST_OS +static bool_t +x_putlong (XDR *xdrs, const int *longp) +{ + xdrs->x_handy += BYTES_PER_XDR_UNIT; + return TRUE; +} + +#else +static bool_t +x_putlong (XDR *xdrs, const long *longp) +{ + xdrs->x_handy += BYTES_PER_XDR_UNIT; + return TRUE; +} +#endif + +/* ARGSUSED */ +static bool_t +x_putbytes (XDR *xdrs, const char *bp, u_int len) +{ + xdrs->x_handy += len; + return TRUE; +} + +#ifdef GF_DARWIN_HOST_OS +static u_int +x_getpostn (XDR *xdrs) +{ + return xdrs->x_handy; +} +#else +static u_int +x_getpostn (const XDR *xdrs) +{ + return xdrs->x_handy; +} +#endif + +/* ARGSUSED */ +static bool_t +x_setpostn (XDR *xdrs, u_int len) +{ + /* This is not allowed */ + return FALSE; +} + +static int32_t * +x_inline (XDR *xdrs, u_int len) +{ + if (len == 0) + return NULL; + if (xdrs->x_op != XDR_ENCODE) + return NULL; + if (len < (u_int) (long int) 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 */ + free (xdrs->x_private); + if ((xdrs->x_private = (caddr_t) malloc (len)) == NULL) + { + xdrs->x_base = 0; + return NULL; + } + xdrs->x_base = (void *) (long) len; + xdrs->x_handy += len; + return (int32_t *) xdrs->x_private; + } +} + +static int +harmless (void) +{ + /* Always return FALSE/NULL, as the case may be */ + return 0; +} + +static void +x_destroy (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 (xdrproc_t func, void *data) +{ + XDR x; + struct xdr_ops ops; + bool_t stat; + +#ifdef GF_DARWIN_HOST_OS + typedef bool_t (*dummyfunc1) (XDR *, int *); +#else + typedef bool_t (*dummyfunc1) (XDR *, long *); +#endif + 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, 0); + if (x.x_private) + free (x.x_private); + return (stat == TRUE ? (unsigned) x.x_handy : 0); +} +#endif /* GF_DARWIN_HOST_OS */ |