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
|
#include <sys/types.h>
#if !defined(__OpenBSD__)
#define __USE_GNU
#define _GNU_SOURCE
#endif
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <pwd.h>
#include <grp.h>
#include <string.h>
#include <err.h>
#include <libglouglou.h> /* for get_iface() and droppriv() */
#include <libggnet_traceroute.h>
static void _cb_traceroute(struct addr *,
struct ggnet_traceroute_req *, void *);
struct event_base *_ev_base;
struct ggnet_traceroute_req *_route = NULL;
int _answer = 0;
int
main(int argc, char *argv[])
{
struct ggnet_traceroute *ggtr;
struct ggnet_traceroute_hop *hop;
struct addr ip;
struct timeval tv;
if (argc < 2) {
printf("usage: traceroute <ip>\n");
exit(1);
}
addr_aton(argv[1], &ip);
bzero(&tv, sizeof(struct timeval));
tv.tv_sec = 10;
_ev_base = event_base_new();
ggtr = ggnet_traceroute_new(_ev_base, get_iface(argv[1]));
droppriv("nobody", 1, NULL); /* bad practise you should use dedicated user */
ggnet_traceroute_trace(ggtr, &ip, TRACEMODE_ICMP, _cb_traceroute, NULL);
event_base_loopexit(_ev_base, &tv);
event_base_dispatch(_ev_base);
if (_answer) {
printf("%s:\n", addr_ntoa(&ip));
TAILQ_FOREACH(hop, &_route->hops_list, entry) {
printf("%s (%d)\n", addr_ntoa(&hop->ip), hop->delay);
}
} else {
printf("no answer\n");
}
return 0;
}
static void
_cb_traceroute(struct addr *ip,
struct ggnet_traceroute_req *route, void *data)
{
_route = route;
_answer = 1;
event_base_loopexit(_ev_base, NULL);
}
|