1 | /* |
---|
2 | * Copyright (c) 1996, 1998 by Internet Software Consortium. |
---|
3 | * |
---|
4 | * Permission to use, copy, modify, and distribute this software for any |
---|
5 | * purpose with or without fee is hereby granted, provided that the above |
---|
6 | * copyright notice and this permission notice appear in all copies. |
---|
7 | * |
---|
8 | * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS |
---|
9 | * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES |
---|
10 | * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE |
---|
11 | * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
---|
12 | * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
---|
13 | * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS |
---|
14 | * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS |
---|
15 | * SOFTWARE. |
---|
16 | */ |
---|
17 | |
---|
18 | #if defined(LIBC_SCCS) && !defined(lint) |
---|
19 | static char rcsid[] = "$Id$"; |
---|
20 | #endif /* LIBC_SCCS and not lint */ |
---|
21 | |
---|
22 | #include <sys/types.h> |
---|
23 | #include <sys/param.h> |
---|
24 | #include <sys/socket.h> |
---|
25 | #include <netinet/in.h> |
---|
26 | #include <arpa/inet.h> |
---|
27 | #include <arpa/nameser.h> |
---|
28 | #include <ctype.h> |
---|
29 | #include <resolv.h> |
---|
30 | |
---|
31 | static char |
---|
32 | xtob(c) |
---|
33 | register int c; |
---|
34 | { |
---|
35 | return (c - (((c >= '0') && (c <= '9')) ? '0' : '7')); |
---|
36 | } |
---|
37 | |
---|
38 | u_int |
---|
39 | inet_nsap_addr(ascii, binary, maxlen) |
---|
40 | const char *ascii; |
---|
41 | u_char *binary; |
---|
42 | int maxlen; |
---|
43 | { |
---|
44 | u_char c, nib; |
---|
45 | u_int len = 0; |
---|
46 | |
---|
47 | while ((c = *ascii++) != '\0' && len < (u_int)maxlen) { |
---|
48 | if (c == '.' || c == '+' || c == '/') |
---|
49 | continue; |
---|
50 | if (!isascii(c)) |
---|
51 | return (0); |
---|
52 | if (islower(c)) |
---|
53 | c = toupper(c); |
---|
54 | if (isxdigit(c)) { |
---|
55 | nib = xtob(c); |
---|
56 | c = *ascii++; |
---|
57 | if (c != '\0') { |
---|
58 | c = toupper(c); |
---|
59 | if (isxdigit(c)) { |
---|
60 | *binary++ = (nib << 4) | xtob(c); |
---|
61 | len++; |
---|
62 | } else |
---|
63 | return (0); |
---|
64 | } |
---|
65 | else |
---|
66 | return (0); |
---|
67 | } |
---|
68 | else |
---|
69 | return (0); |
---|
70 | } |
---|
71 | return (len); |
---|
72 | } |
---|
73 | |
---|
74 | char * |
---|
75 | inet_nsap_ntoa(binlen, binary, ascii) |
---|
76 | int binlen; |
---|
77 | register const u_char *binary; |
---|
78 | register char *ascii; |
---|
79 | { |
---|
80 | register int nib; |
---|
81 | int i; |
---|
82 | static char tmpbuf[255*3]; |
---|
83 | char *start; |
---|
84 | |
---|
85 | if (ascii) |
---|
86 | start = ascii; |
---|
87 | else { |
---|
88 | ascii = tmpbuf; |
---|
89 | start = tmpbuf; |
---|
90 | } |
---|
91 | |
---|
92 | if (binlen > 255) |
---|
93 | binlen = 255; |
---|
94 | |
---|
95 | for (i = 0; i < binlen; i++) { |
---|
96 | nib = *binary >> 4; |
---|
97 | *ascii++ = nib + (nib < 10 ? '0' : '7'); |
---|
98 | nib = *binary++ & 0x0f; |
---|
99 | *ascii++ = nib + (nib < 10 ? '0' : '7'); |
---|
100 | if (((i % 2) == 0 && (i + 1) < binlen)) |
---|
101 | *ascii++ = '.'; |
---|
102 | } |
---|
103 | *ascii = '\0'; |
---|
104 | return (start); |
---|
105 | } |
---|