busybox/networking/udhcp/dumpleases.c
Denis Vlasenko 68404f13d4 *: add -Wunused-parameter; fix resulting breakage
function                                             old     new   delta
procps_scan                                         1265    1298     +33
aliascmd                                             278     283      +5
parse_file_cmd                                       116     120      +4
dname_enc                                            373     377      +4
setcmd                                                90      93      +3
execcmd                                               57      60      +3
count_lines                                           72      74      +2
process_command_subs                                 340     339      -1
test_main                                            409     407      -2
mknod_main                                           179     177      -2
handle_incoming_and_exit                            2653    2651      -2
argstr                                              1312    1310      -2
shiftcmd                                             131     128      -3
exitcmd                                               46      43      -3
dotcmd                                               297     294      -3
breakcmd                                              86      83      -3
evalpipe                                             353     349      -4
evalcommand                                         1180    1176      -4
evalcmd                                              109     105      -4
send_tree                                            374     369      -5
mkfifo_main                                           82      77      -5
evalsubshell                                         152     147      -5
typecmd                                               75      69      -6
letcmd                                                61      55      -6
add_cmd                                             1190    1183      -7
main                                                 891     883      -8
ash_main                                            1415    1407      -8
parse_stream                                        1377    1367     -10
alloc_procps_scan                                     55       -     -55
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 7/21 up/down: 54/-148)          Total: -94 bytes
   text    data     bss     dec     hex filename
 797195     658    7428  805281   c49a1 busybox_old
 797101     658    7428  805187   c4943 busybox_unstripped
2008-03-17 09:00:54 +00:00

68 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) MAIN_EXTERNALLY_VISIBLE;
int dumpleases_main(int argc ATTRIBUTE_UNUSED, 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 char dumpleases_longopts[] ALIGN1 =
"absolute\0" No_argument "a"
"remaining\0" No_argument "r"
"file\0" Required_argument "f"
;
applet_long_options = dumpleases_longopts;
#endif
opt_complementary = "=0:a--r:r--a";
opt = getopt32(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;
}