mirror of
https://github.com/topjohnwu/ndk-busybox.git
synced 2024-12-15 07:48:30 +00:00
69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
|
|
*/
|
|
#include <getopt.h>
|
|
|
|
#include "common.h"
|
|
#include "dhcpd.h"
|
|
|
|
int dumpleases_main(int argc, char **argv);
|
|
int dumpleases_main(int argc, char **argv)
|
|
{
|
|
int fd;
|
|
int i;
|
|
unsigned opt;
|
|
time_t expires;
|
|
const char *file = LEASES_FILE;
|
|
struct dhcpOfferedAddr lease;
|
|
struct in_addr addr;
|
|
|
|
enum {
|
|
OPT_a = 0x1, // -a
|
|
OPT_r = 0x2, // -r
|
|
OPT_f = 0x4, // -f
|
|
};
|
|
#if ENABLE_GETOPT_LONG
|
|
static const struct option options[] = {
|
|
{ "absolute", no_argument, 0, 'a' },
|
|
{ "remaining", no_argument, 0, 'r' },
|
|
{ "file", required_argument, 0, 'f' },
|
|
{ NULL, 0, 0, 0 }
|
|
};
|
|
|
|
applet_long_options = options;
|
|
#endif
|
|
opt_complementary = "=0:?:a--r:r--a";
|
|
opt = getopt32(argc, argv, "arf:", &file);
|
|
|
|
fd = xopen(file, O_RDONLY);
|
|
|
|
printf("Mac Address IP-Address Expires %s\n", (opt & OPT_a) ? "at" : "in");
|
|
/* "00:00:00:00:00:00 255.255.255.255 Wed Jun 30 21:49:08 1993" */
|
|
while (full_read(fd, &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));
|
|
expires = ntohl(lease.expires);
|
|
if (!(opt & OPT_a)) { /* no -a */
|
|
if (!expires)
|
|
puts("expired");
|
|
else {
|
|
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 /* -a */
|
|
fputs(ctime(&expires), stdout);
|
|
}
|
|
/* close(fd); */
|
|
|
|
return 0;
|
|
}
|