void *child(void * arg) {
extern int active_threads;
int host_id = *(int *) arg;
char logmessage[LOGSIZE];
if (set.verbose == POLLER_VERBOSITY_DEBUG) {
snprintf(logmessage, LOGSIZE, "DEBUG: In Poller, About to Start Polling of Host\n");
cacti_log(logmessage);
}
if (active_threads == 1) {
if (set.verbose == POLLER_VERBOSITY_DEBUG) {
snprintf(logmessage, LOGSIZE, "DEBUG: This is where popen DEADLOCKs errors occur\n");
}
}
poll_host(host_id);
thread_mutex_lock(LOCK_THREAD);
active_threads = active_threads - 1;
thread_mutex_unlock(LOCK_THREAD);
if (set.verbose == POLLER_VERBOSITY_DEBUG) {
snprintf(logmessage, LOGSIZE, "DEBUG: The Value of Active Threads is %i\n" ,active_threads);
cacti_log(logmessage);
}
pthread_exit(0);
}
int main(int argc, char **argv)
{
int status;
int nrx_fd;
int host_rfd;
int host_wfd;
int use_stdin = 0;
char * ser_dev = NULL;
int port = 12345;
char * filename = default_filename;
void * handle = NULL;
int host_flash = 0;
int input_baudrate = 115200;
speed_t baudrate = B115200;
int opt;
struct ifreq ifr;
struct nanoioctl nr;
while((opt = getopt(argc, argv, "d:s:p:f:b:i")) != -1) {
switch(opt) {
case 'b':
input_baudrate = atoi(optarg);
switch(input_baudrate) {
case 9600: baudrate = B9600; break;
case 19200: baudrate = B19200; break;
case 38400: baudrate = B38400; break;
case 57600: baudrate = B57600; break;
case 115200: baudrate = B115200; break;
default: usage();
}
break;
case 'd':
debug = atoi(optarg);
break;
case 'f':
filename = optarg;
break;
case 'i':
use_stdin = 1;
break;
case 'p':
port = atoi(optarg);
break;
case 's':
ser_dev = optarg;
break;
default:
break;
}
}
if(optind == argc)
usage();
strcpy(ifr.ifr_name, argv[optind]);
ifr.ifr_data = (char *)&nr;
memset(&nr,0,sizeof(nr));
nr.magic = NR_MAGIC;
APP_INFO("Nanoradio network interface: %s\n", ifr.ifr_name);
APP_INFO("Saving persistent MIB data of type HOST to: %s\n", filename);
if(use_stdin) {
APP_INFO("Using stdin/stdout as client interface\n");
host_wfd = host_rfd = open_terminal();
redirect_stdout("/tmp/hic_proxy.log");
} else if(ser_dev)
{
APP_INFO("Using %s (baudrate = %d) as serial client interface\n", ser_dev,input_baudrate);
host_wfd = host_rfd = open_serial(ser_dev, baudrate);
}
else
{
APP_INFO("Using ethernet as client interface\n");
host_wfd = host_rfd = open_socket(port);
}
nrx_fd = socket(AF_INET, SOCK_DGRAM, 0);
if(nrx_fd < 0) err(1, "socket");
for(;;) {
status = poll_host(host_rfd, &ifr);
if(status) {
if((nr.data[TYPE_INDEX] == HIC_MESSAGE_TYPE_FLASH_PRG))
{
APP_DEBUG("flash cmd recieved\n");
//examine flash cmd
handle = flash_cmd(&ifr,handle,filename);
if(handle)
{
//send local host flash cmd reply
host_write(host_wfd, nr.data, nr.length);
}
else
{
//forward to target
nrx_write(nrx_fd, &ifr);
}
}
else
{
//forward to target
nrx_write(nrx_fd, &ifr);
}
}
status = poll_target(nrx_fd, &ifr);
if(status)
host_write(host_wfd, nr.data, nr.length);
usleep(5000);
}
if(!use_stdin) {
close(host_rfd);
}
close(nrx_fd);
}
