int socket_bind(const char * ip, int port, int protocol)
{
int s;
#ifdef __WIN32
SOCKADDR_IN sa;
#else
struct sockaddr_in sa;
#endif
if ((s = socket(AF_INET, protocol, 0)) < 0)
{
sys_err("socket: %s", strerror(errno));
return -1;
}
socket_reuse(s);
#ifndef __WIN32__
socket_lingeroff(s);
#else
// Winsock2: SO_DONTLINGER, SO_KEEPALIVE, SO_LINGER, and SO_OOBINLINE are
// not supported on sockets of type SOCK_DGRAM
if (protocol == SOCK_STREAM) {
socket_lingeroff(s);
}
#endif
memset(&sa, 0, sizeof(sa));
sa.sin_family = AF_INET;
//윈도우 서버는 개발용으로만 쓰기 때문에 BIND ip를 INADDR_ANY로 고정
//(테스트의 편의성을 위해)
#ifndef __WIN32__
sa.sin_addr.s_addr = inet_addr(ip);
#else
sa.sin_addr.s_addr = INADDR_ANY;
#endif
sa.sin_port = htons((unsigned short) port);
if (bind(s, (struct sockaddr *) &sa, sizeof(sa)) < 0)
{
sys_err("bind: %s", strerror(errno));
return -1;
}
socket_nonblock(s);
if (protocol == SOCK_STREAM)
{
sys_log(0, "SYSTEM: BINDING TCP PORT ON [%d] (fd %d)", port, s);
listen(s, SOMAXCONN);
}
else
sys_log(0, "SYSTEM: BINDING UDP PORT ON [%d] (fd %d)", port, s);
return s;
}
void mainloop(int sock)
{
char code;
int newsock;
iopoll_fd fds;
fds.fd = sock;
fds.events = IOPOLL_READ;
for (;;) {
switch (iopoll_restart(&fds, 1, timeout*1000)) {
case -1:
return;
case 0:
/* Timed out */
if (kill(ppid, 0) == -1) return;
continue;
default:
if (read(sock, &code, 1) != 1) return;
code = 0;
if ((newsock = socket_tcp()) == -1) {
error1sys("Creating socket failed");
code = 1;
}
else if (!socket_reuse(newsock)) {
error1sys("Setting flags on socket failed");
code = 2;
}
else if (!socket_bind4(newsock, &ip, port)) {
error1sys("Binding socket failed");
code = 3;
}
if (write(sock, &code, 1) != 1)
error1sys("Sending the result code failed");
if (!code)
if (!socket_sendfd(sock, newsock))
error1sys("Sending the bound socket failed");
close(newsock);
}
}
}
