ReactOS  0.4.14-dev-297-g23e575c
xdr_reference.c
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1 /*
2  * Copyright (c) 2009, Sun Microsystems, Inc.
3  * All rights reserved.
4  *
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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
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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
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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
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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
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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  */
61 bool_t
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;
69  bool_t stat;
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  */
118 bool_t
119 xdr_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 }
#define TRUE
Definition: types.h:120
bool_t xdr_reference(XDR *xdrs, caddr_t *pp, u_int size, xdrproc_t proc)
Definition: xdr_reference.c:62
int32_t bool_t
Definition: types.h:101
static HANDLE proc()
Definition: pdb.c:32
char * caddr_t
Definition: rosdhcp.h:36
Definition: xdr.h:103
bool_t(* xdrproc_t)(XDR *,...)
Definition: xdr.h:144
#define mem_alloc(bsize)
Definition: types.h:123
#define pp
Definition: hlsl.yy.c:1208
smooth NULL
Definition: ftsmooth.c:416
GLsizeiptr size
Definition: glext.h:5919
enum xdr_op x_op
Definition: xdr.h:104
bool_t xdr_pointer(XDR *xdrs, char **objpp, u_int obj_size, xdrproc_t xdr_obj)
Definition: xdr.h:85
Definition: stat.h:55
_CRTIMP int __cdecl stat(const char *_Filename, struct stat *_Stat)
Definition: stat.h:345
#define caddr_t
Definition: ftp.c:24
UINT32 u_int
Definition: types.h:82
bool_t xdr_bool(XDR *xdrs, bool_t *bp)
Definition: xdr.c:428
Definition: xdr.h:87
Definition: xdr.h:86
#define mem_free(ptr, bsize)
Definition: types.h:124
#define memset(x, y, z)
Definition: compat.h:39