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
|
/*
* Project : ipv6calc
* File : libipaddr.c
* Version : $Id: 1f2029f3bffb64ecc38cef6881702578e8ad8532 $
* Copyright : 2014-2021 by Peter Bieringer <pb (at) bieringer.de>
*
* Information:
* Function library for generic IPv4/6 address handling
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "config.h"
#include "libipaddr.h"
#include "libipv6addr.h"
#include "libipv4addr.h"
#include "ipv6calctypes.h"
#include "libipv6calc.h"
#include "libipv6calcdebug.h"
#include "librfc1884.h"
/*
* stores the ipaddr structure in an IPv4/6 string
*
* in: ipaddr = IPv4/6 address structure
* out: *resultstring = IPv4/6 address (modified)
* ret: ==0: ok, !=0: error
*/
int libipaddr_ipaddrstruct_to_string(const ipv6calc_ipaddr *ipaddrp, char *resultstring, const size_t resultstring_length, const uint32_t formatoptions) {
int retval = 1;
ipv6calc_ipv4addr ipv4addr;
ipv6calc_ipv6addr ipv6addr;
switch (ipaddrp->proto) {
case IPV6CALC_PROTO_IPV4:
ipv4addr_clearall(&ipv4addr);
ipv4addr_setdword(&ipv4addr, ipaddrp->addr[0]);
ipv4addr.prefixlength = ipaddrp->prefixlength;
ipv4addr.flag_valid = ipaddrp->flag_valid;
ipv4addr.flag_prefixuse = ipaddrp->flag_prefixuse;
libipv4addr_ipv4addrstruct_to_string(&ipv4addr, resultstring, resultstring_length, formatoptions);
break;
case IPV6CALC_PROTO_IPV6:
ipv6addr_clearall(&ipv6addr);
ipv6addr_setdword(&ipv6addr, 0, ipaddrp->addr[0]);
ipv6addr_setdword(&ipv6addr, 1, ipaddrp->addr[1]);
ipv6addr_setdword(&ipv6addr, 2, ipaddrp->addr[2]);
ipv6addr_setdword(&ipv6addr, 3, ipaddrp->addr[3]);
ipv6addr.prefixlength = ipaddrp->prefixlength;
ipv6addr.flag_valid = ipaddrp->flag_valid;
ipv6addr.flag_prefixuse = ipaddrp->flag_prefixuse;
if ((formatoptions & (FORMATOPTION_printuncompressed | FORMATOPTION_printfulluncompressed)) != 0) {
libipv6addr_ipv6addrstruct_to_uncompaddr(&ipv6addr, resultstring, resultstring_length, formatoptions);
} else {
librfc1884_ipv6addrstruct_to_compaddr(&ipv6addr, resultstring, resultstring_length, formatoptions);
};
break;
default:
ERRORPRINT_WA("unsupported proto=%d (FIX CODE)", ipaddrp->proto);
exit(EXIT_FAILURE);
break;
};
DEBUGPRINT_WA(DEBUG_libipaddr, "result string: %s", resultstring);
retval = 0;
return (retval);
};
/*
* function clears the IPv6 structure
*
* mod: ipaddrp = pointer to IP address structure
*/
extern void libipaddr_clearall(ipv6calc_ipaddr *ipaddrp) {
/* Clear IP address */
ipaddrp->addr[0] = 0;
ipaddrp->addr[1] = 0;
ipaddrp->addr[2] = 0;
ipaddrp->addr[3] = 0;
/* Clear IP address scope */
ipaddrp->scope = 0;
/* Clear proto */
ipaddrp->proto = 0;
/* Clear valid flag */
ipaddrp->flag_valid = 0;
/* Clear prefix */
ipaddrp->prefixlength = 0;
ipaddrp->flag_prefixuse = 0;
/* Clear typeinfo */
ipaddrp->typeinfo1 = 0;
ipaddrp->typeinfo2 = 0;
return;
};
|
