ReactOS 0.4.15-dev-7085-g12a5971
xdr_reference.c
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1/*
2 * Copyright (c) 2009, Sun Microsystems, Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * - Redistributions of source code must retain the above copyright notice,
8 * this list of conditions and the following disclaimer.
9 * - Redistributions in binary form must reproduce the above copyright notice,
10 * this list of conditions and the following disclaimer in the documentation
11 * and/or other materials provided with the distribution.
12 * - Neither the name of Sun Microsystems, Inc. nor the names of its
13 * contributors may be used to endorse or promote products derived
14 * from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29//#include <sys/cdefs.h>
30//#include <sys/cdefs.h>
31
32/*
33 * xdr_reference.c, Generic XDR routines impelmentation.
34 *
35 * Copyright (C) 1987, Sun Microsystems, Inc.
36 *
37 * These are the "non-trivial" xdr primitives used to serialize and de-serialize
38 * "pointers". See xdr.h for more info on the interface to xdr.
39 */
40
41#include <wintirpc.h>
42#include "namespace.h"
43//#include <err.h>
44#include <stdio.h>
45#include <stdlib.h>
46#include <string.h>
47
48#include <rpc/types.h>
49#include <rpc/xdr.h>
50#include "libc_private.h"
51
52/*
53 * XDR an indirect pointer
54 * xdr_reference is for recursively translating a structure that is
55 * referenced by a pointer inside the structure that is currently being
56 * translated. pp references a pointer to storage. If *pp is null
57 * the necessary storage is allocated.
58 * size is the sizeof the referneced structure.
59 * proc is the routine to handle the referenced structure.
60 */
63 XDR *xdrs;
64 caddr_t *pp; /* the pointer to work on */
65 u_int size; /* size of the object pointed to */
66 xdrproc_t proc; /* xdr routine to handle the object */
67{
68 caddr_t loc = *pp;
70
71 if (loc == NULL)
72 switch (xdrs->x_op) {
73 case XDR_FREE:
74 return (TRUE);
75
76 case XDR_DECODE:
77 *pp = loc = (caddr_t) mem_alloc(size);
78 if (loc == NULL) {
79 //warnx("xdr_reference: out of memory");
80 return (FALSE);
81 }
82 memset(loc, 0, size);
83 break;
84
85 case XDR_ENCODE:
86 break;
87 }
88
89 stat = (*proc)(xdrs, loc);
90
91 if (xdrs->x_op == XDR_FREE) {
92 mem_free(loc, size);
93 *pp = NULL;
94 }
95 return (stat);
96}
97
98
99/*
100 * xdr_pointer():
101 *
102 * XDR a pointer to a possibly recursive data structure. This
103 * differs with xdr_reference in that it can serialize/deserialiaze
104 * trees correctly.
105 *
106 * What's sent is actually a union:
107 *
108 * union object_pointer switch (boolean b) {
109 * case TRUE: object_data data;
110 * case FALSE: void nothing;
111 * }
112 *
113 * > objpp: Pointer to the pointer to the object.
114 * > obj_size: size of the object.
115 * > xdr_obj: routine to XDR an object.
116 *
117 */
118bool_t
119xdr_pointer(xdrs,objpp,obj_size,xdr_obj)
120 XDR *xdrs;
121 char **objpp;
122 u_int obj_size;
123 xdrproc_t xdr_obj;
124{
125
126 bool_t more_data;
127
128 more_data = (*objpp != NULL);
129 if (! xdr_bool(xdrs,&more_data)) {
130 return (FALSE);
131 }
132 if (! more_data) {
133 *objpp = NULL;
134 return (TRUE);
135 }
136 return (xdr_reference(xdrs,objpp,obj_size,xdr_obj));
137}
bool_t xdr_bool(XDR *xdrs, bool_t *bp)
Definition: xdr.c:428
#define stat
Definition: acwin.h:99
#define caddr_t
Definition: ftp.c:24
UINT32 u_int
Definition: types.h:82
#define mem_free(ptr, bsize)
Definition: types.h:124
#define NULL
Definition: types.h:112
#define mem_alloc(bsize)
Definition: types.h:123
int32_t bool_t
Definition: types.h:101
#define TRUE
Definition: types.h:120
#define FALSE
Definition: types.h:117
GLsizeiptr size
Definition: glext.h:5919
static HANDLE proc()
Definition: pdb.c:34
char * caddr_t
Definition: rosdhcp.h:36
#define memset(x, y, z)
Definition: compat.h:39
Definition: xdr.h:103
enum xdr_op x_op
Definition: xdr.h:104
Definition: stat.h:55
@ XDR_DECODE
Definition: xdr.h:86
@ XDR_FREE
Definition: xdr.h:87
@ XDR_ENCODE
Definition: xdr.h:85
bool_t(* xdrproc_t)(XDR *,...)
Definition: xdr.h:144
bool_t xdr_pointer(XDR *xdrs, char **objpp, u_int obj_size, xdrproc_t xdr_obj)
bool_t xdr_reference(XDR *xdrs, caddr_t *pp, u_int size, xdrproc_t proc)
Definition: xdr_reference.c:62