8 #include <netinet/in.h>
10 #include <sys/socket.h>
17 #include "libbb_udhcp.h"
24 static void __attribute__ ((noreturn)) show_usage(void)
27 "Usage: dumpleases -f <file> -[r|a]\n\n"
28 " -f, --file=FILENAME Leases file to load\n"
29 " -r, --remaining Interepret lease times as time remaing\n"
30 " -a, --absolute Interepret lease times as expire time\n");
34 #define show_usage bb_show_usage
39 int dumpleases_main(int argc, char *argv[])
41 int main(int argc, char *argv[])
45 int i, c, mode = REMAINING;
47 const char *file = LEASES_FILE;
48 struct dhcpOfferedAddr lease;
51 static const struct option options[] = {
52 {"absolute", 0, 0, 'a'},
53 {"remaining", 0, 0, 'r'},
60 c = getopt_long(argc, argv, "arf:", options, &option_index);
64 case 'a': mode = ABSOLUTE; break;
65 case 'r': mode = REMAINING; break;
74 fp = xfopen(file, "r");
76 printf("Mac Address IP-Address Expires %s\n", mode == REMAINING ? "in" : "at");
77 /* "00:00:00:00:00:00 255.255.255.255 Wed Jun 30 21:49:08 1993" */
78 while (fread(&lease, sizeof(lease), 1, fp)) {
80 for (i = 0; i < 6; i++) {
81 printf("%02x", lease.chaddr[i]);
82 if (i != 5) printf(":");
84 addr.s_addr = lease.yiaddr;
85 printf(" %-15s", inet_ntoa(addr));
86 expires = ntohl(lease.expires);
88 if (mode == REMAINING) {
89 if (!expires) printf("expired\n");
91 if (expires > 60*60*24) {
92 printf("%ld days, ", expires / (60*60*24));
95 if (expires > 60*60) {
96 printf("%ld hours, ", expires / (60*60));
100 printf("%ld minutes, ", expires / 60);
103 printf("%ld seconds\n", expires);
105 } else printf("%s", ctime(&expires));