1/*
2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3 * unrestricted use provided that this legend is included on all tape
4 * media and as a part of the software program in whole or part. Users
5 * may copy or modify Sun RPC without charge, but are not authorized
6 * to license or distribute it to anyone else except as part of a product or
7 * program developed by the user.
8 *
9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
12 *
13 * Sun RPC is provided with no support and without any obligation on the
14 * part of Sun Microsystems, Inc. to assist in its use, correction,
15 * modification or enhancement.
16 *
17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19 * OR ANY PART THEREOF.
20 *
21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22 * or profits or other special, indirect and consequential damages, even if
23 * Sun has been advised of the possibility of such damages.
24 *
25 * Sun Microsystems, Inc.
26 * 2550 Garcia Avenue
27 * Mountain View, California 94043
28 */
29
30#if defined(LIBC_SCCS) && !defined(lint)
31/*static char *sccsid = "from: @(#)xdr_reference.c 1.11 87/08/11 SMI";*/
32/*static char *sccsid = "from: @(#)xdr_reference.c 2.1 88/07/29 4.0 RPCSRC";*/
| 1/*
2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3 * unrestricted use provided that this legend is included on all tape
4 * media and as a part of the software program in whole or part. Users
5 * may copy or modify Sun RPC without charge, but are not authorized
6 * to license or distribute it to anyone else except as part of a product or
7 * program developed by the user.
8 *
9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
12 *
13 * Sun RPC is provided with no support and without any obligation on the
14 * part of Sun Microsystems, Inc. to assist in its use, correction,
15 * modification or enhancement.
16 *
17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19 * OR ANY PART THEREOF.
20 *
21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22 * or profits or other special, indirect and consequential damages, even if
23 * Sun has been advised of the possibility of such damages.
24 *
25 * Sun Microsystems, Inc.
26 * 2550 Garcia Avenue
27 * Mountain View, California 94043
28 */
29
30#if defined(LIBC_SCCS) && !defined(lint)
31/*static char *sccsid = "from: @(#)xdr_reference.c 1.11 87/08/11 SMI";*/
32/*static char *sccsid = "from: @(#)xdr_reference.c 2.1 88/07/29 4.0 RPCSRC";*/
|
33static char *rcsid = "$Id: xdr_reference.c,v 1.1 1994/08/07 18:39:34 wollman Exp $";
| 33static char *rcsid = "$Id: xdr_reference.c,v 1.2 1995/05/30 05:42:12 rgrimes Exp $";
|
34#endif
35
36/*
37 * xdr_reference.c, Generic XDR routines impelmentation.
38 *
39 * Copyright (C) 1987, Sun Microsystems, Inc.
40 *
41 * These are the "non-trivial" xdr primitives used to serialize and de-serialize
42 * "pointers". See xdr.h for more info on the interface to xdr.
43 */
44
45#include <stdio.h>
| 34#endif
35
36/*
37 * xdr_reference.c, Generic XDR routines impelmentation.
38 *
39 * Copyright (C) 1987, Sun Microsystems, Inc.
40 *
41 * These are the "non-trivial" xdr primitives used to serialize and de-serialize
42 * "pointers". See xdr.h for more info on the interface to xdr.
43 */
44
45#include <stdio.h>
|
| 46#include <stdlib.h>
47#include <string.h>
|
46#include <rpc/types.h>
47#include <rpc/xdr.h>
48
49#define LASTUNSIGNED ((u_int)0-1)
50
51/*
52 * XDR an indirect pointer
53 * xdr_reference is for recursively translating a structure that is
54 * referenced by a pointer inside the structure that is currently being
55 * translated. pp references a pointer to storage. If *pp is null
56 * the necessary storage is allocated.
57 * size is the sizeof the referneced structure.
58 * proc is the routine to handle the referenced structure.
59 */
60bool_t
61xdr_reference(xdrs, pp, size, proc)
62 register XDR *xdrs;
63 caddr_t *pp; /* the pointer to work on */
64 u_int size; /* size of the object pointed to */
65 xdrproc_t proc; /* xdr routine to handle the object */
66{
67 register caddr_t loc = *pp;
68 register bool_t stat;
69
70 if (loc == NULL)
71 switch (xdrs->x_op) {
72 case XDR_FREE:
73 return (TRUE);
74
75 case XDR_DECODE:
76 *pp = loc = (caddr_t) mem_alloc(size);
77 if (loc == NULL) {
78 (void) fprintf(stderr,
79 "xdr_reference: out of memory\n");
80 return (FALSE);
81 }
82 bzero(loc, (int)size);
83 break;
84 }
85
86 stat = (*proc)(xdrs, loc, LASTUNSIGNED);
87
88 if (xdrs->x_op == XDR_FREE) {
89 mem_free(loc, size);
90 *pp = NULL;
91 }
92 return (stat);
93}
94
95
96/*
97 * xdr_pointer():
98 *
99 * XDR a pointer to a possibly recursive data structure. This
100 * differs with xdr_reference in that it can serialize/deserialiaze
101 * trees correctly.
102 *
103 * What's sent is actually a union:
104 *
105 * union object_pointer switch (boolean b) {
106 * case TRUE: object_data data;
107 * case FALSE: void nothing;
108 * }
109 *
110 * > objpp: Pointer to the pointer to the object.
111 * > obj_size: size of the object.
112 * > xdr_obj: routine to XDR an object.
113 *
114 */
115bool_t
116xdr_pointer(xdrs,objpp,obj_size,xdr_obj)
117 register XDR *xdrs;
118 char **objpp;
119 u_int obj_size;
120 xdrproc_t xdr_obj;
121{
122
123 bool_t more_data;
124
125 more_data = (*objpp != NULL);
126 if (! xdr_bool(xdrs,&more_data)) {
127 return (FALSE);
128 }
129 if (! more_data) {
130 *objpp = NULL;
131 return (TRUE);
132 }
133 return (xdr_reference(xdrs,objpp,obj_size,xdr_obj));
134}
| 48#include <rpc/types.h>
49#include <rpc/xdr.h>
50
51#define LASTUNSIGNED ((u_int)0-1)
52
53/*
54 * XDR an indirect pointer
55 * xdr_reference is for recursively translating a structure that is
56 * referenced by a pointer inside the structure that is currently being
57 * translated. pp references a pointer to storage. If *pp is null
58 * the necessary storage is allocated.
59 * size is the sizeof the referneced structure.
60 * proc is the routine to handle the referenced structure.
61 */
62bool_t
63xdr_reference(xdrs, pp, size, proc)
64 register XDR *xdrs;
65 caddr_t *pp; /* the pointer to work on */
66 u_int size; /* size of the object pointed to */
67 xdrproc_t proc; /* xdr routine to handle the object */
68{
69 register caddr_t loc = *pp;
70 register bool_t stat;
71
72 if (loc == NULL)
73 switch (xdrs->x_op) {
74 case XDR_FREE:
75 return (TRUE);
76
77 case XDR_DECODE:
78 *pp = loc = (caddr_t) mem_alloc(size);
79 if (loc == NULL) {
80 (void) fprintf(stderr,
81 "xdr_reference: out of memory\n");
82 return (FALSE);
83 }
84 bzero(loc, (int)size);
85 break;
86 }
87
88 stat = (*proc)(xdrs, loc, LASTUNSIGNED);
89
90 if (xdrs->x_op == XDR_FREE) {
91 mem_free(loc, size);
92 *pp = NULL;
93 }
94 return (stat);
95}
96
97
98/*
99 * xdr_pointer():
100 *
101 * XDR a pointer to a possibly recursive data structure. This
102 * differs with xdr_reference in that it can serialize/deserialiaze
103 * trees correctly.
104 *
105 * What's sent is actually a union:
106 *
107 * union object_pointer switch (boolean b) {
108 * case TRUE: object_data data;
109 * case FALSE: void nothing;
110 * }
111 *
112 * > objpp: Pointer to the pointer to the object.
113 * > obj_size: size of the object.
114 * > xdr_obj: routine to XDR an object.
115 *
116 */
117bool_t
118xdr_pointer(xdrs,objpp,obj_size,xdr_obj)
119 register XDR *xdrs;
120 char **objpp;
121 u_int obj_size;
122 xdrproc_t xdr_obj;
123{
124
125 bool_t more_data;
126
127 more_data = (*objpp != NULL);
128 if (! xdr_bool(xdrs,&more_data)) {
129 return (FALSE);
130 }
131 if (! more_data) {
132 *objpp = NULL;
133 return (TRUE);
134 }
135 return (xdr_reference(xdrs,objpp,obj_size,xdr_obj));
136}
|