OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [librpc/] [src/] [xdr/] [xdr_array.c] - Blame information for rev 593

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 30 unneback
/*
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_array.c 1.10 87/08/11 Copyr 1984 Sun Micro";*/
32
/*static char *sccsid = "from: @(#)xdr_array.c  2.1 88/07/29 4.0 RPCSRC";*/
33
static char *rcsid = "$FreeBSD: src/lib/libc/xdr/xdr_array.c,v 1.8 1999/08/28 00:02:55 peter Exp $";
34
#endif
35
 
36
/*
37
 * xdr_array.c, Generic XDR routines impelmentation.
38
 *
39
 * Copyright (C) 1984, Sun Microsystems, Inc.
40
 *
41
 * These are the "non-trivial" xdr primitives used to serialize and de-serialize
42
 * arrays.  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>
48
#include <rpc/types.h>
49
#include <rpc/xdr.h>
50
 
51
#define LASTUNSIGNED ((u_int) 0-1)
52
 
53
/*
54
 * XDR an array of arbitrary elements
55
 * *addrp is a pointer to the array, *sizep is the number of elements.
56
 * If addrp is NULL (*sizep * elsize) bytes are allocated.
57
 * elsize is the size (in bytes) of each element, and elproc is the
58
 * xdr procedure to call to handle each element of the array.
59
 */
60
bool_t
61
xdr_array(xdrs, addrp, sizep, maxsize, elsize, elproc)
62
        register XDR *xdrs;
63
        caddr_t *addrp;         /* array pointer */
64
        u_int *sizep;           /* number of elements */
65
        u_int maxsize;          /* max numberof elements */
66
        u_int elsize;           /* size in bytes of each element */
67
        xdrproc_t elproc;       /* xdr routine to handle each element */
68
{
69
        register u_int i;
70
        register caddr_t target = *addrp;
71
        register u_int c;  /* the actual element count */
72
        register bool_t stat = TRUE;
73
        register u_int nodesize;
74
 
75
        /* like strings, arrays are really counted arrays */
76
        if (! xdr_u_int(xdrs, sizep)) {
77
                return (FALSE);
78
        }
79
        c = *sizep;
80
        if ((c > maxsize) && (xdrs->x_op != XDR_FREE)) {
81
                return (FALSE);
82
        }
83
        nodesize = c * elsize;
84
 
85
        /*
86
         * if we are deserializing, we may need to allocate an array.
87
         * We also save time by checking for a null array if we are freeing.
88
         */
89
        if (target == NULL)
90
                switch (xdrs->x_op) {
91
                case XDR_DECODE:
92
                        if (c == 0)
93
                                return (TRUE);
94
                        *addrp = target = mem_alloc(nodesize);
95
                        if (target == NULL) {
96
                                (void) fprintf(stderr,
97
                                        "xdr_array: out of memory\n");
98
                                return (FALSE);
99
                        }
100
                        memset(target, 0, nodesize);
101
                        break;
102
 
103
                case XDR_FREE:
104
                        return (TRUE);
105
                case XDR_ENCODE:  /* to avoid warning */
106
                        break;
107
        }
108
 
109
        /*
110
         * now we xdr each element of array
111
         */
112
        for (i = 0; (i < c) && stat; i++) {
113
                stat = (*elproc)(xdrs, target, LASTUNSIGNED);
114
                target += elsize;
115
        }
116
 
117
        /*
118
         * the array may need freeing
119
         */
120
        if (xdrs->x_op == XDR_FREE) {
121
                mem_free(*addrp, nodesize);
122
                *addrp = NULL;
123
        }
124
        return (stat);
125
}
126
 
127
/*
128
 * xdr_vector():
129
 *
130
 * XDR a fixed length array. Unlike variable-length arrays,
131
 * the storage of fixed length arrays is static and unfreeable.
132
 * > basep: base of the array
133
 * > size: size of the array
134
 * > elemsize: size of each element
135
 * > xdr_elem: routine to XDR each element
136
 */
137
bool_t
138
xdr_vector(xdrs, basep, nelem, elemsize, xdr_elem)
139
        register XDR *xdrs;
140
        register char *basep;
141
        register u_int nelem;
142
        register u_int elemsize;
143
        register xdrproc_t xdr_elem;
144
{
145
        register u_int i;
146
        register char *elptr;
147
 
148
        elptr = basep;
149
        for (i = 0; i < nelem; i++) {
150
                if (! (*xdr_elem)(xdrs, elptr, LASTUNSIGNED)) {
151
                        return(FALSE);
152
                }
153
                elptr += elemsize;
154
        }
155
        return(TRUE);
156
}
157
 

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.