int32 network_addlistener(bool v6, const char *addr, uint16 port)
{
SESSION *s;
int optval, fd;
#if !defined(ENABLE_IPV6)
if(v6 == true) {
ShowError(read_message("Source.common.network_addlistener"), (v6==true?'t':'f'), addr, port);
return -1;
}
#endif
#ifdef ENABLE_IPV6
if(v6 == true)
fd = socket(AF_INET6, SOCK_STREAM, 0);
else
#endif
fd = socket(AF_INET, SOCK_STREAM, 0);
// Error?
if(fd == -1) {
ShowError(read_message("Source.common.network_addlistener2"), (v6==true?'t':'f'), addr, port, errno, strerror(errno));
return -1;
}
// Too many connections?
if(fd >= MAXCONN) {
ShowError(read_message("Source.common.network_addlistener3"), (v6==true?'t':'f'), addr, port, MAXCONN);
close(fd);
return -1;
}
s = &g_Session[fd];
if(s->type != NST_FREE) { // additional checks.. :)
ShowError(read_message("Source.common.network_addlistener4"), (v6==true?'t':'f'), addr, port, fd);
close(fd);
return -1;
}
// Fill ip addr structs
#ifdef ENABLE_IPV6
if(v6 == true) {
memset(&s->addr.v6, 0x00, sizeof(s->addr.v6));
s->addr.v6.sin6_family = AF_INET6;
s->addr.v6.sin6_port = htons(port);
if(inet_pton(AF_INET6, addr, &s->addr.v6.sin6_addr) != 1) {
ShowError(read_message("Source.common.network_addlistener5"), (v6==true?'t':'f'), addr, port);
close(fd);
return -1;
}
} else {
#endif
memset(&s->addr.v4, 0x00, sizeof(s->addr.v4));
s->addr.v4.sin_family = AF_INET;
s->addr.v4.sin_port = htons(port);
s->addr.v4.sin_addr.s_addr = inet_addr(addr);
#ifdef ENABLE_IPV6
}
#endif
// if OS has support for SO_REUSEADDR, apply the flag
// so the address could be used when there're still time_wait sockets outstanding from previous application run.
#ifdef SO_REUSEADDR
optval=1;
setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval));
#endif
// Bind
#ifdef ENABLE_IPV6
if(v6 == true) {
if(bind(fd, (struct sockaddr *)&s->addr.v6, sizeof(s->addr.v6)) == -1) {
ShowError(read_message("Source.common.add_listener6"), (v6==true?'t':'f'), addr, port, errno, strerror(errno));
close(fd);
return -1;
}
} else {
#endif
if(bind(fd, (struct sockaddr *)&s->addr.v4, sizeof(s->addr.v4)) == -1) {
ShowError(read_message("Source.common.add_listener6"), (v6==true?'t':'f'), addr, port, errno, strerror(errno));
close(fd);
return -1;
}
#ifdef ENABLE_IPV6
}
#endif
if(listen(fd, l_ListenBacklog) == -1) {
ShowError(read_message("Source.common.add_listener7"), (v6==true?'t':'f'), addr, port, errno, strerror(errno));
close(fd);
return -1;
}
// Set to nonblock!
if(_setnonblock(fd) == false) {
ShowError(read_message("Source.common.addlistener8"), (v6==true?'t':'f'), addr, port, errno, strerror(errno));
close(fd);
return -1;
}
// Rgister @ evdp.
if(evdp_addlistener(fd, &s->evdp_data) != true) {
ShowError(read_message("Source.common.addlistener9"), (v6==true?'t':'f'), addr, port);
close(fd);
return -1;
}
// Apply flags on Session array for this conneciton.
if(v6 == true) s->v6 = true;
else s->v6 = false;
s->type = NST_LISTENER;
s->onRecv = _network_accept;
ShowStatus(read_message("Source.common.add_listener10"), addr, port, (v6==true ? "(ipv6)":"(ipv4)"));
return fd;
}//end: network_addlistener()
int32 network_addlistener(bool v6, const char *addr, uint16 port){
SESSION *s;
int optval, fd;
#if !defined(ENABLE_IPV6)
if(v6 == true){
ShowError("network_addlistener(%c, '%s', %u): this release has no IPV6 support.\n", (v6==true?'t':'f'), addr, port);
return -1;
}
#endif
#ifdef ENABLE_IPV6
if(v6 == true)
fd = socket(AF_INET6, SOCK_STREAM, 0);
else
#endif
fd = socket(AF_INET, SOCK_STREAM, 0);
// Error?
if(fd == -1){
ShowError("network_addlistener(%c, '%s', %u): socket() failed (errno: %u / %s)\n", (v6==true?'t':'f'), addr, port, errno, strerror(errno));
return -1;
}
// Too many connections?
if(fd >= MAXCONN){
ShowError("network_addlistener(%c, '%s', %u): cannot create listener, exceeds more than supported connections (%u).\n", (v6==true?'t':'f'), addr, port, MAXCONN);
close(fd);
return -1;
}
s = &g_Session[fd];
if(s->type != NST_FREE){ // additional checks.. :)
ShowError("network_addlistener(%c, '%s', %u): failed, got fd #%u which is already in use in local session table?!\n", (v6==true?'t':'f'), addr, port, fd);
close(fd);
return -1;
}
// Fill ip addr structs
#ifdef ENABLE_IPV6
if(v6 == true){
memset(&s->addr.v6, 0x00, sizeof(s->addr.v6));
s->addr.v6.sin6_family = AF_INET6;
s->addr.v6.sin6_port = htons(port);
if(inet_pton(AF_INET6, addr, &s->addr.v6.sin6_addr) != 1){
ShowError("network_addlistener(%c, '%s', %u): failed to parse the given IPV6 address.\n", (v6==true?'t':'f'), addr, port);
close(fd);
return -1;
}
}else{
#endif
memset(&s->addr.v4, 0x00, sizeof(s->addr.v4));
s->addr.v4.sin_family = AF_INET;
s->addr.v4.sin_port = htons(port);
s->addr.v4.sin_addr.s_addr = inet_addr(addr);
#ifdef ENABLE_IPV6
}
#endif
// if OS has support for SO_REUSEADDR, apply the flag
// so the address could be used when there're still time_wait sockets outstanding from previous application run.
#ifdef SO_REUSEADDR
optval=1;
setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval));
#endif
// Bind
#ifdef ENABLE_IPV6
if(v6 == true){
if( bind(fd, (struct sockaddr*)&s->addr.v6, sizeof(s->addr.v6)) == -1) {
ShowError("network_addlistener(%c, '%s', %u): bind failed (errno: %u / %s)\n", (v6==true?'t':'f'), addr, port, errno, strerror(errno));
close(fd);
return -1;
}
}else{
#endif
if( bind(fd, (struct sockaddr*)&s->addr.v4, sizeof(s->addr.v4)) == -1) {
ShowError("network_addlistener(%c, '%s', %u): bind failed (errno: %u / %s)\n", (v6==true?'t':'f'), addr, port, errno, strerror(errno));
close(fd);
return -1;
}
#ifdef ENABLE_IPV6
}
#endif
if( listen(fd, l_ListenBacklog) == -1){
ShowError("network_addlistener(%c, '%s', %u): listen failed (errno: %u / %s)\n", (v6==true?'t':'f'), addr, port, errno, strerror(errno));
close(fd);
return -1;
}
// Set to nonblock!
if(_setnonblock(fd) == false){
ShowError("network_addlistener(%c, '%s', %u): cannot set to nonblock (errno: %u / %s)\n", (v6==true?'t':'f'), addr, port, errno, strerror(errno));
close(fd);
return -1;
}
// Rgister @ evdp.
if( evdp_addlistener(fd, &s->evdp_data) != true){
ShowError("network_addlistener(%c, '%s', %u): eventdispatcher subsystem returned an error.\n", (v6==true?'t':'f'), addr, port);
close(fd);
return -1;
}
// Apply flags on Session array for this conneciton.
if(v6 == true) s->v6 = true;
else s->v6 = false;
s->type = NST_LISTENER;
s->onRecv = _network_accept;
ShowStatus("Added Listener on '%s':%u\n", addr, port, (v6==true ? "(ipv6)":"(ipv4)") );
return fd;
}//end: network_addlistener()
