OpenCores
URL https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk

Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [libnetworking/] [libc/] [iso_addr.c] - Blame information for rev 173

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 30 unneback
/*
2
 * Copyright (c) 1989, 1993
3
 *      The Regents of the University of California.  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
7
 * are met:
8
 * 1. Redistributions of source code must retain the above copyright
9
 *    notice, this list of conditions and the following disclaimer.
10
 * 2. Redistributions in binary form must reproduce the above copyright
11
 *    notice, this list of conditions and the following disclaimer in the
12
 *    documentation and/or other materials provided with the distribution.
13
 * 3. All advertising materials mentioning features or use of this software
14
 *    must display the following acknowledgement:
15
 *      This product includes software developed by the University of
16
 *      California, Berkeley and its contributors.
17
 * 4. Neither the name of the University nor the names of its contributors
18
 *    may be used to endorse or promote products derived from this software
19
 *    without specific prior written permission.
20
 *
21
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31
 * SUCH DAMAGE.
32
 *
33
 *  $Id: iso_addr.c,v 1.2 2001-09-27 12:01:53 chris Exp $
34
 */
35
 
36
#if defined(LIBC_SCCS) && !defined(lint)
37
static char sccsid[] = "@(#)iso_addr.c  8.1 (Berkeley) 6/4/93";
38
#endif /* LIBC_SCCS and not lint */
39
 
40
#include <sys/types.h>
41
#include <netiso/iso.h>
42
#include <string.h>
43
 
44
/* States*/
45
#define VIRGIN  0
46
#define GOTONE  1
47
#define GOTTWO  2
48
/* Inputs */
49
#define DIGIT   (4*0)
50
#define END     (4*1)
51
#define DELIM   (4*2)
52
 
53
struct iso_addr *
54
iso_addr(addr)
55
        register const char *addr;
56
{
57
        static struct iso_addr out_addr;
58
        register char *cp = out_addr.isoa_genaddr;
59
        char *cplim = cp + sizeof(out_addr.isoa_genaddr);
60
        register int byte = 0, state = VIRGIN, new;
61
 
62
        bzero((char *)&out_addr, sizeof(out_addr));
63
        do {
64
                if ((*addr >= '0') && (*addr <= '9')) {
65
                        new = *addr - '0';
66
                } else if ((*addr >= 'a') && (*addr <= 'f')) {
67
                        new = *addr - 'a' + 10;
68
                } else if ((*addr >= 'A') && (*addr <= 'F')) {
69
                        new = *addr - 'A' + 10;
70
                } else if (*addr == 0)
71
                        state |= END;
72
                else
73
                        state |= DELIM;
74
                addr++;
75
                switch (state /* | INPUT */) {
76
                case GOTTWO | DIGIT:
77
                        *cp++ = byte; /*FALLTHROUGH*/
78
                case VIRGIN | DIGIT:
79
                        state = GOTONE; byte = new; continue;
80
                case GOTONE | DIGIT:
81
                        state = GOTTWO; byte = new + (byte << 4); continue;
82
                default: /* | DELIM */
83
                        state = VIRGIN; *cp++ = byte; byte = 0; continue;
84
                case GOTONE | END:
85
                case GOTTWO | END:
86
                        *cp++ = byte; /* FALLTHROUGH */
87
                case VIRGIN | END:
88
                        break;
89
                }
90
                break;
91
        } while (cp < cplim);
92
        out_addr.isoa_len = cp - out_addr.isoa_genaddr;
93
        return (&out_addr);
94
}
95
 
96
static char hexlist[] = "0123456789abcdef";
97
 
98
char *
99
iso_ntoa(isoa)
100
        const struct iso_addr *isoa;
101
{
102
        static char tmpbuf[sizeof(isoa->isoa_genaddr)*3];
103
        const u_char *binary;
104
        char *cp;
105
        int i;
106
 
107
        binary = isoa->isoa_genaddr;
108
        cp = tmpbuf;
109
 
110
        for (i = 0; i < isoa->isoa_len; i++) {
111
                *cp++ = hexlist[*binary >> 4];
112
                *cp++ = hexlist[*binary++ & 0xf];
113
 
114
                if ((((i % 2) == 0) && ((i + 1) < isoa->isoa_len)))
115
                        *cp++ = '.';
116
        }
117
        *cp = '\0';
118
        return tmpbuf;
119
}

powered by: WebSVN 2.1.0

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