void openInterface(Interface * interface, int fd) {
int flags;
assert(interface->open==0);
interface->bufferLength = 0;
interface->bufferPos = 0;
interface->fd = fd;
/* fcntl(interface->fd,F_SETOWN,(int)getpid()); */
while((flags = fcntl(fd,F_GETFL))<0 && errno==EINTR);
flags|=O_NONBLOCK;
while(fcntl(interface->fd,F_SETFL,flags)<0 && errno==EINTR);
while((interface->fp = fdopen(fd,"rw"))==NULL && errno==EINTR);
interface->open = 1;
interface->lastTime = time(NULL);
interface->commandList = NULL;
interface->bufferList = NULL;
interface->expired = 0;
interface->outputBufferSize = 0;
interface->outBuflen = 0;
interface->permission = getDefaultPermissions();
interface->outBufSize = INTERFACE_DEFAULT_OUT_BUFFER_SIZE;
#ifdef SO_SNDBUF
{
int getSize;
int sockOptLen = sizeof(int);
if(getsockopt(interface->fd,SOL_SOCKET,SO_SNDBUF,
(char *)&getSize,&sockOptLen) < 0)
{
DEBUG("problem getting sockets send buffer size\n");
}
else if(getSize<=0) {
DEBUG("sockets send buffer size is not positive\n");
}
else interface->outBufSize = getSize;
}
#endif
interface->outBuffer = malloc(interface->outBufSize);
myfprintf(interface->fp, "%s %s\n", GREETING, VERSION);
printInterfaceOutBuffer(interface);
}
static void client_init(struct client *client, int fd)
{
static unsigned int next_client_num;
assert(fd >= 0);
client->cmd_list_size = 0;
client->cmd_list_OK = -1;
#ifndef G_OS_WIN32
client->channel = g_io_channel_unix_new(fd);
#else
client->channel = g_io_channel_win32_new_socket(fd);
#endif
/* GLib is responsible for closing the file descriptor */
g_io_channel_set_close_on_unref(client->channel, true);
/* NULL encoding means the stream is binary safe; the MPD
protocol is UTF-8 only, but we are doing this call anyway
to prevent GLib from messing around with the stream */
g_io_channel_set_encoding(client->channel, NULL, NULL);
/* we prefer to do buffering */
g_io_channel_set_buffered(client->channel, false);
client->source_id = g_io_add_watch(client->channel,
G_IO_IN|G_IO_ERR|G_IO_HUP,
client_in_event, client);
client->input = fifo_buffer_new(4096);
client->lastTime = time(NULL);
client->cmd_list = NULL;
client->deferred_send = g_queue_new();
client->deferred_bytes = 0;
client->num = next_client_num++;
client->send_buf_used = 0;
client->permission = getDefaultPermissions();
(void)write(fd, GREETING, sizeof(GREETING) - 1);
}
void
client_new(struct player_control *player_control,
int fd, const struct sockaddr *sa, size_t sa_length, int uid)
{
static unsigned int next_client_num;
struct client *client;
char *remote;
assert(player_control != NULL);
assert(fd >= 0);
#ifdef HAVE_LIBWRAP
if (sa->sa_family != AF_UNIX) {
char *hostaddr = sockaddr_to_string(sa, sa_length, NULL);
const char *progname = g_get_prgname();
struct request_info req;
request_init(&req, RQ_FILE, fd, RQ_DAEMON, progname, 0);
fromhost(&req);
if (!hosts_access(&req)) {
/* tcp wrappers says no */
g_log(G_LOG_DOMAIN, LOG_LEVEL_SECURE,
"libwrap refused connection (libwrap=%s) from %s",
progname, hostaddr);
g_free(hostaddr);
close_socket(fd);
return;
}
g_free(hostaddr);
}
#endif /* HAVE_WRAP */
if (client_list_is_full()) {
g_warning("Max Connections Reached!");
close_socket(fd);
return;
}
client = g_new0(struct client, 1);
client->player_control = player_control;
client->channel = g_io_channel_new_socket(fd);
/* GLib is responsible for closing the file descriptor */
g_io_channel_set_close_on_unref(client->channel, true);
/* NULL encoding means the stream is binary safe; the MPD
protocol is UTF-8 only, but we are doing this call anyway
to prevent GLib from messing around with the stream */
g_io_channel_set_encoding(client->channel, NULL, NULL);
/* we prefer to do buffering */
g_io_channel_set_buffered(client->channel, false);
client->source_id = g_io_add_watch(client->channel,
G_IO_IN|G_IO_ERR|G_IO_HUP,
client_in_event, client);
client->input = fifo_buffer_new(4096);
client->permission = getDefaultPermissions();
client->uid = uid;
client->last_activity = g_timer_new();
client->cmd_list = NULL;
client->cmd_list_OK = -1;
client->cmd_list_size = 0;
client->deferred_send = g_queue_new();
client->deferred_bytes = 0;
client->num = next_client_num++;
client->send_buf_used = 0;
client->subscriptions = NULL;
client->messages = NULL;
client->num_messages = 0;
(void)send(fd, GREETING, sizeof(GREETING) - 1, 0);
client_list_add(client);
remote = sockaddr_to_string(sa, sa_length, NULL);
g_log(G_LOG_DOMAIN, LOG_LEVEL_SECURE,
"[%u] opened from %s", client->num, remote);
g_free(remote);
}