int main(int argc, char *argv[])
{
int fd;
if (argc < 2) {
printf("usage: ./a.out port\n");
return -1;
}
fd = open_divert(atoi(argv[1]));
if (fd < 0)
return -1;
read_loop(fd);
return 0;
}
int
main(int argc, char *argv[])
{
int n;
int begin, end;
int port;
nat_type type;
time_t ttl;
int ch;
extern char *optarg;
extern int optind;
progname = argv[0];
begin = 0;
end = 65535;
ttl = 300;
type = full_cone;
port = 0;
while ((ch = getopt(argc, argv, "p:b:e:t:n:v")) != -1){
switch (ch){
case 'p':
port = atoi(optarg);
break;
case 'b':
begin = atoi(optarg);
break;
case 'e':
end = atoi(optarg);
break;
case 't':
ttl = atoi(optarg);
break;
case 'n':
n = atoi(optarg);
if (n == 0) {
type = full_cone;
} else if (n == 1) {
type = restricted_cone;
} else if (n == 2) {
type = port_restricted_cone;
}
break;
case 'v':
verbose = true;
break;
default:
usage();
return -1;
}
}
argc -= optind;
argv += optind;
if (port == 0) {
std::cerr << "please use -p option for divert socket"
<< std::endl;
usage();
return -1;
}
filter f(begin, end, type, ttl);
int fd;
fd = open_divert(port);
if (fd < 0) {
return -1;
}
read_loop(fd, f);
return 0;
}