1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
/*
* Copyright (c) 1996 by Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char rcsid[] = "$Id$";
#endif /* LIBC_SCCS and not lint */
#include <sys/types.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/nameser.h>
#include <ctype.h>
#include <resolv.h>
#include "../conf/portability.h"
#if !defined(isxdigit) /* XXX - could be a function */
static int
isxdigit(c)
register int c;
{
return ((c >= '0') && (c <= '9')) || ((c >= 'A') && (c <= 'F'));
}
#endif
static char
xtob(c)
register int c;
{
return (c - (((c >= '0') && (c <= '9')) ? '0' : '7'));
}
u_int
inet_nsap_addr(ascii, binary, maxlen)
const char *ascii;
u_char *binary;
int maxlen;
{
register u_char c, nib;
u_int len = 0;
while ((c = *ascii++) != '\0' && (int) len < maxlen) {
if (c == '.' || c == '+' || c == '/')
continue;
if (!isascii(c))
return (0);
if (islower(c))
c = toupper(c);
if (isxdigit(c)) {
nib = xtob(c);
if ((c = *ascii++)) {
c = toupper(c);
if (isxdigit(c)) {
*binary++ = (nib << 4) | xtob(c);
len++;
} else
return (0);
}
else
return (0);
}
else
return (0);
}
return (len);
}
char *
inet_nsap_ntoa(binlen, binary, ascii)
int binlen;
register const u_char *binary;
register char *ascii;
{
register int nib;
int i;
static char tmpbuf[255*3];
char *start;
if (ascii)
start = ascii;
else {
ascii = tmpbuf;
start = tmpbuf;
}
if (binlen > 255)
binlen = 255;
for (i = 0; i < binlen; i++) {
nib = *binary >> 4;
*ascii++ = nib + (nib < 10 ? '0' : '7');
nib = *binary++ & 0x0f;
*ascii++ = nib + (nib < 10 ? '0' : '7');
if (((i % 2) == 0 && (i + 1) < binlen))
*ascii++ = '.';
}
*ascii = '\0';
return (start);
}
|
