1 | /* vi: set sw=4 ts=4: */
|
---|
2 | /*
|
---|
3 | * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
|
---|
4 | */
|
---|
5 | #include <getopt.h>
|
---|
6 |
|
---|
7 | #include "common.h"
|
---|
8 | #include "dhcpd.h"
|
---|
9 |
|
---|
10 | int dumpleases_main(int argc, char **argv);
|
---|
11 | int dumpleases_main(int argc, char **argv)
|
---|
12 | {
|
---|
13 | int fd;
|
---|
14 | int i;
|
---|
15 | unsigned opt;
|
---|
16 | time_t expires;
|
---|
17 | const char *file = LEASES_FILE;
|
---|
18 | struct dhcpOfferedAddr lease;
|
---|
19 | struct in_addr addr;
|
---|
20 |
|
---|
21 | enum {
|
---|
22 | OPT_a = 0x1, // -a
|
---|
23 | OPT_r = 0x2, // -r
|
---|
24 | OPT_f = 0x4, // -f
|
---|
25 | };
|
---|
26 | #if ENABLE_GETOPT_LONG
|
---|
27 | static const char dumpleases_longopts[] ALIGN1 =
|
---|
28 | "absolute\0" No_argument "a"
|
---|
29 | "remaining\0" No_argument "r"
|
---|
30 | "file\0" Required_argument "f"
|
---|
31 | ;
|
---|
32 |
|
---|
33 | applet_long_options = dumpleases_longopts;
|
---|
34 | #endif
|
---|
35 | opt_complementary = "=0:a--r:r--a";
|
---|
36 | opt = getopt32(argv, "arf:", &file);
|
---|
37 |
|
---|
38 | fd = xopen(file, O_RDONLY);
|
---|
39 |
|
---|
40 | printf("Mac Address IP-Address Expires %s\n", (opt & OPT_a) ? "at" : "in");
|
---|
41 | /* "00:00:00:00:00:00 255.255.255.255 Wed Jun 30 21:49:08 1993" */
|
---|
42 | while (full_read(fd, &lease, sizeof(lease)) == sizeof(lease)) {
|
---|
43 | printf(":%02x"+1, lease.chaddr[0]);
|
---|
44 | for (i = 1; i < 6; i++) {
|
---|
45 | printf(":%02x", lease.chaddr[i]);
|
---|
46 | }
|
---|
47 | addr.s_addr = lease.yiaddr;
|
---|
48 | printf(" %-15s ", inet_ntoa(addr));
|
---|
49 | expires = ntohl(lease.expires);
|
---|
50 | if (!(opt & OPT_a)) { /* no -a */
|
---|
51 | if (!expires)
|
---|
52 | puts("expired");
|
---|
53 | else {
|
---|
54 | unsigned d, h, m;
|
---|
55 | d = expires / (24*60*60); expires %= (24*60*60);
|
---|
56 | h = expires / (60*60); expires %= (60*60);
|
---|
57 | m = expires / 60; expires %= 60;
|
---|
58 | if (d) printf("%u days ", d);
|
---|
59 | printf("%02u:%02u:%02u\n", h, m, (unsigned)expires);
|
---|
60 | }
|
---|
61 | } else /* -a */
|
---|
62 | fputs(ctime(&expires), stdout);
|
---|
63 | }
|
---|
64 | /* close(fd); */
|
---|
65 |
|
---|
66 | return 0;
|
---|
67 | }
|
---|