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dhcprelay: new applet

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This commit is contained in:
Denis Vlasenko
2006-11-20 19:40:36 +00:00
parent c9cdeaa3fe
commit 736230e209
7 changed files with 386 additions and 13 deletions
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30
networking/udhcp/socket.c
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@@ -63,23 +63,27 @@ int read_interface(char *interface, int *ifindex, uint32_t *addr, uint8_t *arp)
DEBUG("%s (our ip) = %s", ifr.ifr_name, inet_ntoa(our_ip->sin_addr));
}
if (ioctl(fd, SIOCGIFINDEX, &ifr) == 0) {
bb_perror_msg("SIOCGIFINDEX failed");
close(fd);
return -1;
if (ifindex) {
if (ioctl(fd, SIOCGIFINDEX, &ifr) == 0) {
bb_perror_msg("SIOCGIFINDEX failed");
close(fd);
return -1;
}
DEBUG("adapter index %d", ifr.ifr_ifindex);
*ifindex = ifr.ifr_ifindex;
}
DEBUG("adapter index %d", ifr.ifr_ifindex);
*ifindex = ifr.ifr_ifindex;
if (ioctl(fd, SIOCGIFHWADDR, &ifr) != 0) {
bb_perror_msg("SIOCGIFHWADDR failed");
close(fd);
return -1;
if (arp) {
if (ioctl(fd, SIOCGIFHWADDR, &ifr) != 0) {
bb_perror_msg("SIOCGIFHWADDR failed");
close(fd);
return -1;
}
memcpy(arp, ifr.ifr_hwaddr.sa_data, 6);
DEBUG("adapter hardware address %02x:%02x:%02x:%02x:%02x:%02x",
arp[0], arp[1], arp[2], arp[3], arp[4], arp[5]);
}
memcpy(arp, ifr.ifr_hwaddr.sa_data, 6);
DEBUG("adapter hardware address %02x:%02x:%02x:%02x:%02x:%02x",
arp[0], arp[1], arp[2], arp[3], arp[4], arp[5]);
return 0;
}