static void tcp_acceptor(struct Listener *listener, int sock) {
int fd;
struct sockaddr_storage addr;
socklen_t len;
char ipstring[NI_MAXHOST], portstring[NI_MAXSERV];
struct TCPListener *tcpinfo = (struct TCPListener*)(listener->typedata);
len = sizeof(addr);
fd = accept(sock, (struct sockaddr*)&addr, &len);
if (fd < 0) {
return;
}
if (getnameinfo((struct sockaddr*)&addr, len, ipstring, sizeof(ipstring),
portstring, sizeof(portstring),
NI_NUMERICHOST | NI_NUMERICSERV) != 0) {
m_close(fd);
return;
}
if (send_msg_channel_open_init(fd, tcpinfo->chantype) == DROPBEAR_SUCCESS) {
char* addr = NULL;
unsigned int port = 0;
if (tcpinfo->tcp_type == direct) {
/* "direct-tcpip" */
/* host to connect, port to connect */
addr = tcpinfo->sendaddr;
port = tcpinfo->sendport;
} else {
dropbear_assert(tcpinfo->tcp_type == forwarded);
/* "forwarded-tcpip" */
/* address that was connected, port that was connected */
addr = tcpinfo->request_listenaddr;
port = tcpinfo->listenport;
}
if (addr == NULL) {
addr = "localhost";
}
buf_putstring(ses.writepayload, addr, strlen(addr));
buf_putint(ses.writepayload, port);
/* originator ip */
buf_putstring(ses.writepayload, ipstring, strlen(ipstring));
/* originator port */
buf_putint(ses.writepayload, atol(portstring));
encrypt_packet();
} else {
/* XXX debug? */
close(fd);
}
}
static int send_msg_channel_open_x11(int fd, struct sockaddr_in* addr) {
char* ipstring = NULL;
if (send_msg_channel_open_init(fd, &chan_x11) == DROPBEAR_SUCCESS) {
ipstring = inet_ntoa(addr->sin_addr);
buf_putstring(ses.writepayload, ipstring, strlen(ipstring));
buf_putint(ses.writepayload, addr->sin_port);
encrypt_packet();
return DROPBEAR_SUCCESS;
} else {
return DROPBEAR_FAILURE;
}
}
static void tcp_acceptor(struct Listener *listener, int sock) {
int fd;
struct sockaddr_storage addr;
int len;
char ipstring[NI_MAXHOST], portstring[NI_MAXSERV];
struct TCPListener *tcpinfo = (struct TCPListener*)(listener->typedata);
len = sizeof(addr);
fd = accept(sock, (struct sockaddr*)&addr, &len);
if (fd < 0) {
return;
}
if (getnameinfo((struct sockaddr*)&addr, len, ipstring, sizeof(ipstring),
portstring, sizeof(portstring),
NI_NUMERICHOST | NI_NUMERICSERV) != 0) {
return;
}
if (send_msg_channel_open_init(fd, tcpinfo->chantype) == DROPBEAR_SUCCESS) {
buf_putstring(ses.writepayload, tcpinfo->sendaddr,
strlen(tcpinfo->sendaddr));
buf_putint(ses.writepayload, tcpinfo->sendport);
buf_putstring(ses.writepayload, ipstring, strlen(ipstring));
buf_putint(ses.writepayload, atol(portstring));
encrypt_packet();
} else {
/* XXX debug? */
close(fd);
}
}