1 /* vi: set sw=4 ts=4: */
3 * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
14 int dumpleases_main(int argc, char *argv[])
17 int i, c, mode = REMAINING;
18 unsigned long expires;
19 const char *file = LEASES_FILE;
20 struct dhcpOfferedAddr lease;
23 static const struct option options[] = {
24 {"absolute", 0, 0, 'a'},
25 {"remaining", 0, 0, 'r'},
32 c = getopt_long(argc, argv, "arf:", options, &option_index);
36 case 'a': mode = ABSOLUTE; break;
37 case 'r': mode = REMAINING; break;
46 fp = xopen(file, O_RDONLY);
48 printf("Mac Address IP-Address Expires %s\n", mode == REMAINING ? "in" : "at");
49 /* "00:00:00:00:00:00 255.255.255.255 Wed Jun 30 21:49:08 1993" */
50 while (full_read(fp, &lease, sizeof(lease)) == sizeof(lease)) {
51 printf(":%02x"+1, lease.chaddr[0]);
52 for (i = 1; i < 6; i++) {
53 printf(":%02x", lease.chaddr[i]);
55 addr.s_addr = lease.yiaddr;
56 printf(" %-15s ", inet_ntoa(addr));
57 expires = ntohl(lease.expires);
58 if (mode == REMAINING) {
63 d = expires / (24*60*60); expires %= (24*60*60);
64 h = expires / (60*60); expires %= (60*60);
65 m = expires / 60; expires %= 60;
66 if (d) printf("%u days ", d);
67 printf("%02u:%02u:%02u\n", h, m, (unsigned)expires);
69 } else fputs(ctime(&expires), stdout);