*/
#define _GNU_SOURCE
+#define FD_SETSIZE 1024
#include <winsock2.h>
#include <ws2tcpip.h>
#include <sys/time.h>
ip_pkt.checksum = 0;
ip_pkt.src_ip = my_ip->s_addr;
ip_pkt.dst_ip = other->s_addr;
- ip_pkt.checksum = htons (calc_checksum ((uint16_t *) & ip_pkt,
- sizeof (struct ip_header)));
+ ip_pkt.checksum =
+ htons (calc_checksum ((uint16_t *) & ip_pkt, sizeof (struct ip_header)));
memcpy (&packet[off], &ip_pkt, sizeof (struct ip_header));
off += sizeof (struct ip_header);
/* ip header of the presumably 'lost' udp packet */
ip_pkt.vers_ihl = 0x45;
ip_pkt.tos = 0;
- ip_pkt.pkt_len = htons (sizeof (struct ip_header) +
- sizeof (struct udp_header));
+ ip_pkt.pkt_len =
+ htons (sizeof (struct ip_header) + sizeof (struct udp_header));
ip_pkt.id = htons (0);
ip_pkt.flags_frag_offset = 0;
ip_pkt.ttl = 128;
ip_pkt.checksum = 0;
ip_pkt.src_ip = other->s_addr;
ip_pkt.dst_ip = dummy.s_addr;
- ip_pkt.checksum = htons (calc_checksum ((uint16_t *) & ip_pkt,
- sizeof (struct ip_header)));
+ ip_pkt.checksum =
+ htons (calc_checksum ((uint16_t *) & ip_pkt, sizeof (struct ip_header)));
memcpy (&packet[off], &ip_pkt, sizeof (struct ip_header));
off += sizeof (struct ip_header);
off += sizeof (struct udp_header);
/* no go back to calculate ICMP packet checksum */
- icmp_pkt.checksum = htons (calc_checksum ((uint16_t *) & packet[off],
- sizeof (struct
- icmp_ttl_exceeded_header) +
- sizeof (struct ip_header) +
- sizeof (struct udp_header)));
+ icmp_pkt.checksum =
+ htons (calc_checksum
+ ((uint16_t *) & packet[off],
+ sizeof (struct icmp_ttl_exceeded_header) +
+ sizeof (struct ip_header) + sizeof (struct udp_header)));
memcpy (&packet[sizeof (struct ip_header)], &icmp_pkt,
sizeof (struct icmp_ttl_exceeded_header));
memset (&dst, 0, sizeof (dst));
dst.sin_family = AF_INET;
dst.sin_addr = *other;
- err = sendto (rawsock,
- packet,
- sizeof (packet), 0, (struct sockaddr *) &dst, sizeof (dst));
+ err =
+ sendto (rawsock, packet, sizeof (packet), 0, (struct sockaddr *) &dst,
+ sizeof (dst));
if (err < 0)
{
fprintf (stderr, "sendto failed: %s\n", strerror (errno));
ip_pkt.checksum = 0;
ip_pkt.src_ip = my_ip->s_addr;
ip_pkt.dst_ip = other->s_addr;
- ip_pkt.checksum = htons (calc_checksum ((uint16_t *) & ip_pkt,
- sizeof (struct ip_header)));
+ ip_pkt.checksum =
+ htons (calc_checksum ((uint16_t *) & ip_pkt, sizeof (struct ip_header)));
memcpy (&packet[off], &ip_pkt, sizeof (struct ip_header));
off += sizeof (ip_pkt);
ip_pkt.src_ip = other->s_addr;
ip_pkt.dst_ip = dummy.s_addr;
ip_pkt.checksum = 0;
- ip_pkt.checksum = htons (calc_checksum ((uint16_t *) & ip_pkt,
- sizeof (struct ip_header)));
+ ip_pkt.checksum =
+ htons (calc_checksum ((uint16_t *) & ip_pkt, sizeof (struct ip_header)));
memcpy (&packet[off], &ip_pkt, sizeof (struct ip_header));
off += sizeof (struct ip_header);
icmp_echo.code = 0;
icmp_echo.reserved = htonl (port);
icmp_echo.checksum = 0;
- icmp_echo.checksum = htons (calc_checksum ((uint16_t *) & icmp_echo,
- sizeof (struct icmp_echo_header)));
+ icmp_echo.checksum =
+ htons (calc_checksum
+ ((uint16_t *) & icmp_echo, sizeof (struct icmp_echo_header)));
memcpy (&packet[off], &icmp_echo, sizeof (struct icmp_echo_header));
/* no go back to calculate ICMP packet checksum */
off = sizeof (struct ip_header);
- icmp_ttl.checksum = htons (calc_checksum ((uint16_t *) & packet[off],
- sizeof (struct
- icmp_ttl_exceeded_header) +
- sizeof (struct ip_header) +
- sizeof (struct icmp_echo_header)));
+ icmp_ttl.checksum =
+ htons (calc_checksum
+ ((uint16_t *) & packet[off],
+ sizeof (struct icmp_ttl_exceeded_header) +
+ sizeof (struct ip_header) + sizeof (struct icmp_echo_header)));
memcpy (&packet[off], &icmp_ttl, sizeof (struct icmp_ttl_exceeded_header));
memset (&dst, 0, sizeof (dst));
dst.sin_family = AF_INET;
dst.sin_addr = *other;
- err = sendto (rawsock,
- packet,
- sizeof (packet), 0, (struct sockaddr *) &dst, sizeof (dst));
+ err =
+ sendto (rawsock, packet, sizeof (packet), 0, (struct sockaddr *) &dst,
+ sizeof (dst));
if (err < 0)
{
if (0 !=
setsockopt (ret, SOL_SOCKET, SO_BROADCAST, (char *) &bOptVal, bOptLen))
{
- fprintf (stderr,
- "Error setting SO_BROADCAST to ON: %s\n", strerror (errno));
+ fprintf (stderr, "Error setting SO_BROADCAST to ON: %s\n",
+ strerror (errno));
closesocket (rawsock);
return INVALID_SOCKET;
}