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
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/*
* sixdegrees.c - List the size of the six degrees of trust away from a key.
*
* Jonathan McDowell <noodles@earth.li>
*
* Copyright 2001-2002 Project Purple.
*/
#include <stdio.h>
#include <stdlib.h>
#include "hash.h"
#include "keydb.h"
#include "keystructs.h"
#include "ll.h"
#include "log.h"
#include "onak-conf.h"
#include "stats.h"
unsigned long countdegree(struct stats_key *have, bool sigs, int maxdegree)
{
unsigned long count = 0, curdegree = 0;
struct ll *curll, *nextll, *sigll, *tmp;
struct stats_key *key = NULL;
++curdegree;
nextll = NULL;
curll = lladd(NULL, have);
while (curll != NULL && curdegree <= maxdegree) {
if (sigs) {
sigll = config.dbbackend->cached_getkeysigs(
((struct stats_key *)
curll->object)->keyid);
} else {
sigll = NULL;
key = findinhash(((struct stats_key *)
curll->object)->keyid);
if (key != NULL) {
sigll = key->signs;
}
}
while (sigll != NULL) {
if (((struct stats_key *) sigll->object)->colour==0) {
/* We've never seen it. Count it, mark it and
explore its subtree */
count++;
((struct stats_key *)sigll->object)->colour =
curdegree;
((struct stats_key *)sigll->object)->parent =
((struct stats_key *)
curll->object)->keyid;
nextll=lladd(nextll, sigll->object);
}
sigll = sigll->next;
}
tmp = curll->next;
free(curll);
curll = tmp;
if (curll == NULL) {
curll = nextll;
nextll = NULL;
++curdegree;
};
}
if (curll != NULL) {
llfree(curll, NULL);
curll = NULL;
}
if (nextll != NULL) {
llfree(nextll, NULL);
nextll = NULL;
}
return count;
}
void sixdegrees(uint64_t keyid)
{
struct stats_key *keyinfo;
int loop;
long degree;
char *uid;
config.dbbackend->cached_getkeysigs(keyid);
if ((keyinfo = findinhash(keyid)) == NULL) {
printf("Couldn't find key 0x%" PRIX64 ".\n", keyid);
return;
}
uid = config.dbbackend->keyid2uid(keyinfo->keyid);
printf("Six degrees for 0x%" PRIX64 " (%s):\n", keyinfo->keyid, uid);
free(uid);
uid = NULL;
/*
* Cheat. This prefills the ->sign part of all the keys we want to
* look at so that we can output that info at the same time as the
* signers. However we're assuming that the signers and signees are
* reasonably closely related otherwise the info is wildly off - the
* only way to get 100% accurate results is to examine every key to see
* if it's signed by the key we're looking at.
*/
initcolour(false);
degree = countdegree(keyinfo, true, 7);
puts("\t\tSigned by\t\tSigns");
for (loop = 1; loop < 7; loop++) {
initcolour(false);
degree = countdegree(keyinfo, true, loop);
printf("Degree %d:\t%8ld", loop, degree);
initcolour(false);
degree = countdegree(keyinfo, false, loop);
printf("\t\t%8ld\n", degree);
}
}
int main(int argc, char *argv[])
{
uint64_t keyid = 0x5B430367;
if (argc == 2) {
keyid = strtoll(argv[1], NULL, 16);
}
readconfig(NULL);
initlogthing("sixdegrees", config.logfile);
config.dbbackend->initdb(true);
inithash();
sixdegrees(config.dbbackend->getfullkeyid(keyid));
destroyhash();
config.dbbackend->cleanupdb();
cleanuplogthing();
cleanupconfig();
return 0;
}
|
