i32 core_startup(rdp_startup_param* param)
{
i32 ret = RDPERROR_SUCCESS;
do {
if (!param) {
ret = RDPERROR_INVALIDPARAM;
break;
}
debug_startup();
ret = thread_startup();
if (ret != RDPERROR_SUCCESS) {
break;
}
ret = socket_startup(param);
if (ret != RDPERROR_SUCCESS) {
break;
}
s_init = true;
} while (0);
return ret;
}
int main()
{
int listen_fd, client_fd, nfds;
uint64_t buf_size, t;
socklen_t size;
struct sockaddr_vm my_addr = {0}, their_addr;
int vmci_address_family;
fd_set read_fds;
unsigned int cid;
uint8_t buf[BUFSIZE];
socket_startup();
if ((vmci_address_family = VMCISock_GetAFValue()) < 0) {
fprintf(stderr, "VMCISock_GetAFValue failed: %d. You probably need root privileges\n", vmci_address_family);
goto cleanup;
}
if ((listen_fd = socket(vmci_address_family, SOCK_STREAM, 0)) == -1) {
perror("socket");
goto cleanup;
}
/*
* SO_VMCI_BUFFER_SIZE – Default size of communicating buffers; 65536 bytes if not set.
* SO_VMCI_BUFFER_MIN_SIZE – Minimum size of communicating buffers; defaults to 128 bytes.
* SO_VMCI_BUFFER_MAX_SIZE – Maximum size of communicating buffers; defaults to 262144 bytes.
*/
buf_size = 32768;
/* reduce buffer to above size and check */
if (setsockopt(listen_fd, vmci_address_family, SO_VMCI_BUFFER_SIZE, (void *)&buf_size, sizeof(buf_size)) == -1) {
perror("setsockopt");
goto close;
}
size = sizeof(t);
if (getsockopt(listen_fd, vmci_address_family, SO_VMCI_BUFFER_SIZE, (void *)&t, &size) == -1) {
perror("getsockopt");
goto close;
}
if (t != buf_size) {
fprintf(stderr, "SO_VMCI_BUFFER_SIZE not set to size requested.\n");
goto close;
}
my_addr.svm_family = vmci_address_family;
my_addr.svm_cid = VMADDR_CID_ANY;
my_addr.svm_port = VMADDR_PORT_ANY;
if (bind(listen_fd, (struct sockaddr *) &my_addr, sizeof(my_addr)) == -1) {
perror("bind");
goto close;
}
if ((cid = VMCISock_GetLocalCID()) == (unsigned int)-1) {
fprintf(stderr, "VMCISock_GetLocalCID failed\n");
} else {
fprintf(stderr, "server cid: %u\n", cid);
}
size = sizeof(my_addr);
if (getsockname(listen_fd, (struct sockaddr *)&my_addr, &size) == -1) {
perror("getsockname");
goto close;
}
fprintf(stderr, "server (cid, port): %u:%u\n", my_addr.svm_cid, my_addr.svm_port);
for (;;) {
if (listen(listen_fd, CONNECTION_BACKLOG) == -1) {
perror("listen");
goto close;
}
size = sizeof(their_addr);
if ((client_fd = accept(listen_fd, (struct sockaddr *) &their_addr, &size)) == -1) {
perror("accept");
goto close;
}
fprintf(stderr, "client connected\n");
FD_ZERO(&read_fds);
FD_SET(client_fd, &read_fds);
nfds = client_fd + 1;
if (select(nfds, &read_fds, NULL, NULL, NULL) == -1) {
perror("select");
goto close;
}
if (FD_ISSET(client_fd, &read_fds)) {
ssize_t s;
if ((s = recv(client_fd, (void*)buf, sizeof(buf), 0)) < 0) {
fprintf(stderr, "recv failed: %s\n", strerror(errno));
} else {
int i;
fprintf(stderr, "recved %lld bytes\n", (long long int)s);
for (i=0; i<s; i++) {
putc(buf[i], stderr);
}
putc('\n', stderr);
}
}
close(client_fd);
}
close:
socket_close(listen_fd);
cleanup:
socket_cleanup();
return 0;
}
