/* ***************************************
* recv msg from local host
* use the msg to control dial routine
* ****************************************/
void *thread_msg_receiver(void *args)
{
int listenfd, nrecv;
uint8_t *recv_buf;
struct sockaddr_in servaddr;
struct sockaddr_in clntaddr;
struct ctrl_msg *pmsg;
socklen_t addrlen = sizeof(clntaddr);
recv_buf = malloc(ETH_DATA_LEN);
if( recv_buf == NULL)
{
printf("Malloc for the recv_buf failed, in thread_msg_receiver function\n");
exit(-1);
}
memset(&servaddr, 0, sizeof(servaddr));
servaddr.sin_family = AF_INET;
servaddr.sin_port = htons(LISTEN_PORT);
servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
listenfd = socket(AF_INET, SOCK_DGRAM, 0);
if( -1 == listenfd)
{
perror("Create listen socket failed");
exit(-1);
}
if( 0 != bind(listenfd, (struct sockaddr *) &servaddr, sizeof(servaddr)))
{
perror("Bind listenfd failed");
exit(-1);
}
while(1)
{
memset(recv_buf, 0, ETH_DATA_LEN);
nrecv = recvfrom(listenfd, recv_buf, ETH_DATA_LEN, 0,
(struct sockaddr*) &clntaddr, &addrlen);
if( -1 == nrecv && errno == EINTR)
continue;
if( ((struct ctrl_msg *) recv_buf)->msg_magic == MAGIC)
{
pmsg = (struct ctrl_msg *) recv_buf;
if( 0 == strncmp(pmsg->msg, "off", strlen(pmsg->msg) ) )
{
printf("Logoff!\n");
logoff();
status = OFFLINE;
}
if(0 == strncmp(pmsg->msg, "on", strlen(pmsg->msg) ))
{
printf("Logon!\n");
logon();
}
if(0 == strncmp(pmsg->msg, "over", strlen(pmsg->msg) ))
{
printf("Exiting!\n");
if( status == ONLINE )
logoff();
exit(0);
}
}
}
}
static void onExit(int sig)
{
printf("Bye Bye Honey~(*^_^*)\n");
logoff();
exit(0);
}