1 | /* |
---|
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 | * $Id$ |
---|
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 | } |
---|