-#include <fcntl.h>
-#include <string.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <sys/wait.h>
-#include <sys/stat.h>
-#include <arpa/inet.h>
-#include <netdb.h>
-#include <netinet/in.h>
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <unistd.h>
-#include <syslog.h>
-#include <signal.h>
-#include <errno.h>
+/* vi: set sw=4 ts=4: */
+/*
+ * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
+ */
#include <getopt.h>
-#include <time.h>
-#include "libbb_udhcp.h"
+#include "common.h"
+#include "dhcpd.h"
+
#define REMAINING 0
#define ABSOLUTE 1
-struct lease_t {
- unsigned char chaddr[16];
- u_int32_t yiaddr;
- u_int32_t expires;
-};
-
-#ifdef BB_VER
int dumpleases_main(int argc, char *argv[])
-#else
-int main(int argc, char *argv[])
-#endif
{
- FILE *fp;
+ int fp;
int i, c, mode = REMAINING;
- long expires;
- char file[255] = "/var/lib/misc/udhcpd.leases";
- struct lease_t lease;
+ unsigned long expires;
+ const char *file = LEASES_FILE;
+ struct dhcpOfferedAddr lease;
struct in_addr addr;
-
- static struct option options[] = {
+
+ static const struct option options[] = {
{"absolute", 0, 0, 'a'},
{"remaining", 0, 0, 'r'},
{"file", 1, 0, 'f'},
- {"help", 0, 0, 'h'},
{0, 0, 0, 0}
};
while (1) {
int option_index = 0;
- c = getopt_long(argc, argv, "arf:h", options, &option_index);
+ c = getopt_long(argc, argv, "arf:", options, &option_index);
if (c == -1) break;
-
+
switch (c) {
case 'a': mode = ABSOLUTE; break;
case 'r': mode = REMAINING; break;
case 'f':
- strncpy(file, optarg, 255);
- file[254] = '\0';
- break;
- case 'h':
- printf("Usage: dumpleases -f <file> -[r|a]\n\n");
- printf(" -f, --file=FILENAME Leases file to load\n");
- printf(" -r, --remaining Interepret lease times as time remaing\n");
- printf(" -a, --absolute Interepret lease times as expire time\n");
+ file = optarg;
break;
+ default:
+ bb_show_usage();
}
}
-
- if (!(fp = fopen(file, "r"))) {
- perror("could not open input file");
- return 0;
- }
- printf("Mac Address IP-Address Expires %s\n", mode == REMAINING ? "in" : "at");
- /* "00:00:00:00:00:00 255.255.255.255 Wed Jun 30 21:49:08 1993" */
- while (fread(&lease, sizeof(lease), 1, fp)) {
+ fp = xopen(file, O_RDONLY);
- for (i = 0; i < 6; i++) {
- printf("%02x", lease.chaddr[i]);
- if (i != 5) printf(":");
+ printf("Mac Address IP-Address Expires %s\n", mode == REMAINING ? "in" : "at");
+ /* "00:00:00:00:00:00 255.255.255.255 Wed Jun 30 21:49:08 1993" */
+ while (full_read(fp, &lease, sizeof(lease)) == sizeof(lease)) {
+ printf(":%02x"+1, lease.chaddr[0]);
+ for (i = 1; i < 6; i++) {
+ printf(":%02x", lease.chaddr[i]);
}
addr.s_addr = lease.yiaddr;
- printf(" %-15s", inet_ntoa(addr));
+ printf(" %-15s ", inet_ntoa(addr));
expires = ntohl(lease.expires);
- printf(" ");
if (mode == REMAINING) {
- if (!expires) printf("expired\n");
+ if (!expires)
+ printf("expired\n");
else {
- if (expires > 60*60*24) {
- printf("%ld days, ", expires / (60*60*24));
- expires %= 60*60*24;
- }
- if (expires > 60*60) {
- printf("%ld hours, ", expires / (60*60));
- expires %= 60*60;
- }
- if (expires > 60) {
- printf("%ld minutes, ", expires / 60);
- expires %= 60;
- }
- printf("%ld seconds\n", expires);
+ unsigned d, h, m;
+ d = expires / (24*60*60); expires %= (24*60*60);
+ h = expires / (60*60); expires %= (60*60);
+ m = expires / 60; expires %= 60;
+ if (d) printf("%u days ", d);
+ printf("%02u:%02u:%02u\n", h, m, (unsigned)expires);
}
- } else printf("%s", ctime(&expires));
+ } else fputs(ctime(&expires), stdout);
}
- fclose(fp);
-
+ /* close(fp); */
+
return 0;
}