Remove trailing whitespace. Update copyright to include 2004.
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@@ -18,7 +18,7 @@
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <string.h>
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#include <sys/socket.h>
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#include <features.h>
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@@ -73,7 +73,7 @@ static void init_packet(struct dhcpMessage *packet, char type)
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char vendor, length;
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char str[sizeof("udhcp "VERSION)];
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} vendor_id = { DHCP_VENDOR, sizeof("udhcp "VERSION) - 1, "udhcp "VERSION};
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init_header(packet, type);
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memcpy(packet->chaddr, client_config.arp, 6);
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add_option_string(packet->options, client_config.clientid);
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@@ -112,7 +112,7 @@ int send_discover(unsigned long xid, unsigned long requested)
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add_requests(&packet);
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LOG(LOG_DEBUG, "Sending discover...");
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return raw_packet(&packet, INADDR_ANY, CLIENT_PORT, INADDR_BROADCAST,
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return raw_packet(&packet, INADDR_ANY, CLIENT_PORT, INADDR_BROADCAST,
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SERVER_PORT, MAC_BCAST_ADDR, client_config.ifindex);
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}
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@@ -128,11 +128,11 @@ int send_selecting(unsigned long xid, unsigned long server, unsigned long reques
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add_simple_option(packet.options, DHCP_REQUESTED_IP, requested);
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add_simple_option(packet.options, DHCP_SERVER_ID, server);
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add_requests(&packet);
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addr.s_addr = requested;
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LOG(LOG_DEBUG, "Sending select for %s...", inet_ntoa(addr));
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return raw_packet(&packet, INADDR_ANY, CLIENT_PORT, INADDR_BROADCAST,
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return raw_packet(&packet, INADDR_ANY, CLIENT_PORT, INADDR_BROADCAST,
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SERVER_PORT, MAC_BCAST_ADDR, client_config.ifindex);
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}
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@@ -149,12 +149,12 @@ int send_renew(unsigned long xid, unsigned long server, unsigned long ciaddr)
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add_requests(&packet);
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LOG(LOG_DEBUG, "Sending renew...");
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if (server)
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if (server)
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ret = kernel_packet(&packet, ciaddr, CLIENT_PORT, server, SERVER_PORT);
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else ret = raw_packet(&packet, INADDR_ANY, CLIENT_PORT, INADDR_BROADCAST,
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SERVER_PORT, MAC_BCAST_ADDR, client_config.ifindex);
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return ret;
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}
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}
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/* Unicasts a DHCP release message */
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@@ -165,7 +165,7 @@ int send_release(unsigned long server, unsigned long ciaddr)
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init_packet(&packet, DHCPRELEASE);
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packet.xid = random_xid();
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packet.ciaddr = ciaddr;
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add_simple_option(packet.options, DHCP_REQUESTED_IP, ciaddr);
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add_simple_option(packet.options, DHCP_SERVER_ID, server);
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@@ -189,20 +189,20 @@ int get_raw_packet(struct dhcpMessage *payload, int fd)
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usleep(500000); /* possible down interface, looping condition */
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return -1;
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}
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if (bytes < (int) (sizeof(struct iphdr) + sizeof(struct udphdr))) {
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DEBUG(LOG_INFO, "message too short, ignoring");
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return -2;
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}
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if (bytes < ntohs(packet.ip.tot_len)) {
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DEBUG(LOG_INFO, "Truncated packet");
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return -2;
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}
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/* ignore any extra garbage bytes */
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bytes = ntohs(packet.ip.tot_len);
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/* Make sure its the right packet for us, and that it passes sanity checks */
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if (packet.ip.protocol != IPPROTO_UDP || packet.ip.version != IPVERSION ||
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packet.ip.ihl != sizeof(packet.ip) >> 2 || packet.udp.dest != htons(CLIENT_PORT) ||
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@@ -219,7 +219,7 @@ int get_raw_packet(struct dhcpMessage *payload, int fd)
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DEBUG(LOG_INFO, "bad IP header checksum, ignoring");
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return -1;
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}
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/* verify the UDP checksum by replacing the header with a psuedo header */
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source = packet.ip.saddr;
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dest = packet.ip.daddr;
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@@ -235,14 +235,14 @@ int get_raw_packet(struct dhcpMessage *payload, int fd)
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DEBUG(LOG_ERR, "packet with bad UDP checksum received, ignoring");
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return -2;
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}
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memcpy(payload, &(packet.data), bytes - (sizeof(packet.ip) + sizeof(packet.udp)));
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if (ntohl(payload->cookie) != DHCP_MAGIC) {
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LOG(LOG_ERR, "received bogus message (bad magic) -- ignoring");
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return -2;
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}
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DEBUG(LOG_INFO, "oooooh!!! got some!");
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return bytes - (sizeof(packet.ip) + sizeof(packet.udp));
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}
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