int main(int argc, char *argv[])
{
int s, dude;
struct sockaddr_in s_in;
int len;
int raw;
memset(&s_in, 0, sizeof(s_in));
s_in.sin_family = PF_INET;
s_in.sin_port = htons(666);
s_in.sin_addr.s_addr = INADDR_ANY;
if ((raw = socket(PF_INET, SOCK_RAW, 0)) == -1)
err(1, "socket()");
if ((s = socket(s_in.sin_family, SOCK_STREAM, IPPROTO_TCP)) == -1)
err(1, "socket()");
if (bind(s, (struct sockaddr*)&s_in, sizeof(s_in)) == -1)
err(1, "bind()");
if (listen(s, 5) == -1)
err(1, "listen()");
if (signal(SIGPIPE, hand) == SIG_ERR)
err(1, "signal()");
while (1) {
len = sizeof(s_in);
dude = accept(s, (struct sockaddr*)&s_in, &len);
if (dude == -1)
err(1, "accept()");
printf("Got dude %s\n", inet_ntoa(s_in.sin_addr));
handle_dude(dude, raw);
printf("Done\n");
}
}
int main(int argc, char *argv[])
{
struct utsname utsName;
struct sockaddr_in s_in;
struct sockaddr_in dude_sin;
int len, udp, ch, dude, s;
int port = S_DEFAULT_PORT;
int drop;
while ((ch = getopt(argc, argv, "ph")) != -1) {
switch (ch) {
case 'p':
drop = 0;
break;
default:
case 'h':
usage();
break;
}
}
memset(&s_in, 0, sizeof(s_in));
s_in.sin_family = PF_INET;
s_in.sin_addr.s_addr = INADDR_ANY;
s_in.sin_port = htons(S_DEFAULT_UDP_PORT);
udp = socket(s_in.sin_family, SOCK_DGRAM, IPPROTO_UDP);
if (udp == -1)
err(1, "socket(UDP)");
if (bind(udp, (struct sockaddr*) &s_in, sizeof(s_in)) == -1)
err(1, "bind()");
s = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
if (s == -1)
err(1, "socket(TCP)");
drop = 1;
// Do not drop privileges on Windows (doing it fails).
if (uname(&utsName) == 0)
{
drop = strncasecmp(utsName.sysname, "cygwin", 6);
}
if (drop)
drop_privs();
memset(&s_in, 0, sizeof(s_in));
s_in.sin_family = PF_INET;
s_in.sin_port = htons(port);
s_in.sin_addr.s_addr = INADDR_ANY;
len = 1;
if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &len, sizeof(len)) == -1)
err(1, "setsockopt(SO_REUSEADDR)");
if (bind(s, (struct sockaddr*) &s_in, sizeof(s_in)) == -1)
err(1, "bind()");
if (listen(s, 5) == -1)
err(1, "listen()");
while (1) {
len = sizeof(dude_sin);
printf("Waiting for connexion\n");
dude = accept(s, (struct sockaddr*) &dude_sin,
(socklen_t*) &len);
if (dude == -1)
err(1, "accept()");
printf("Got connection from %s\n",
inet_ntoa(dude_sin.sin_addr));
handle_dude(dude, udp);
printf("That was it\n");
}
exit(0);
}
