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author | Denis Vlasenko | 2006-12-27 04:35:09 +0000 |
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committer | Denis Vlasenko | 2006-12-27 04:35:09 +0000 |
commit | 7b76233290bd9dead1848f28ed6d0edfcceb8e09 (patch) | |
tree | b963999fc54eddb65f1929b894f868e24851fc9c /networking/udhcp/dumpleases.c | |
download | busybox-1_3_0.zip busybox-1_3_0.tar.gz |
Correcting tag name to be like previous ones1_3_0
Diffstat (limited to 'networking/udhcp/dumpleases.c')
-rw-r--r-- | networking/udhcp/dumpleases.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/networking/udhcp/dumpleases.c b/networking/udhcp/dumpleases.c new file mode 100644 index 0000000..a0e81bb --- /dev/null +++ b/networking/udhcp/dumpleases.c @@ -0,0 +1,74 @@ +/* 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" + + +#define REMAINING 0 +#define ABSOLUTE 1 + +int dumpleases_main(int argc, char *argv[]) +{ + int fp; + int i, c, mode = REMAINING; + unsigned long expires; + const char *file = LEASES_FILE; + struct dhcpOfferedAddr lease; + struct in_addr addr; + + static const struct option options[] = { + {"absolute", 0, 0, 'a'}, + {"remaining", 0, 0, 'r'}, + {"file", 1, 0, 'f'}, + {0, 0, 0, 0} + }; + + while (1) { + int option_index = 0; + 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': + file = optarg; + break; + default: + bb_show_usage(); + } + } + + fp = xopen(file, O_RDONLY); + + 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)); + expires = ntohl(lease.expires); + if (mode == REMAINING) { + if (!expires) + printf("expired\n"); + 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 fputs(ctime(&expires), stdout); + } + /* close(fp); */ + + return 0; +} |