int main(int argc, char **argv)
{
NLsocket sock;
NLaddress addr, *alladdr;
NLbyte string[NL_MAX_STRING_LENGTH];
NLenum type = NL_IP; /* default network type */
NLint count;
if(nlInit() == NL_FALSE)
printErrorExit();
printf("nlGetString(NL_VERSION) = %s\n\n", nlGetString(NL_VERSION));
printf("nlGetString(NL_NETWORK_TYPES) = %s\n\n", nlGetString(NL_NETWORK_TYPES));
if (argc == 2)
{
if(strcmp(argv[1], "NL_IPX") == 0)
{
type = NL_IPX;
}
else if(strcmp(argv[1], "NL_LOOP_BACK") == 0)
{
type = NL_LOOP_BACK;
}
}
if(nlSelectNetwork(type) == NL_FALSE)
printErrorExit();
/* list all the local addresses */
printf("local addresses are:\n");
alladdr = nlGetAllLocalAddr(&count);
while(count-- > 0)
{
printf(" %s\n", nlAddrToString(alladdr++, string));
}
printf("\n");
nlEnable(NL_SOCKET_STATS);
/* enable reuse address to run two or more copies on one machine */
nlHint(NL_REUSE_ADDRESS, NL_TRUE);
/* create a client socket */
sock = nlOpen(25000, NL_BROADCAST);
if(sock == NL_INVALID)
printErrorExit();
nlGetLocalAddr(sock, &addr);
printf("socket address is %s\n", nlAddrToString(&addr, string));
mainTestLoop(sock);
nlShutdown();
return 0;
}
bool NetAddrToString(const NetworkAddr& addr, std::string& string) {
// TODO: safty here for buffer
char buf[256];
NLchar* res = nlAddrToString(getNLaddr(addr), buf);
if(res) {
fix_markend(buf);
string = buf;
return true;
} else
return false;
}
void mainServerLoop(NLsocket sock)
{
NLsocket client[MAX_CLIENTS];
NLint clientnum = 0;
NLbyte string[NL_MAX_STRING_LENGTH];
memset(client, 0, sizeof(client));
while(1)
{
NLint i;
NLbyte buffer[128];
/* check for a new client */
NLsocket newsock = nlAcceptConnection(sock);
if(newsock != NL_INVALID)
{
NLaddress addr;
nlGetRemoteAddr(newsock, &addr);
client[clientnum] = newsock;
printf("Client %d connected from %s\n", clientnum, nlAddrToString(&addr, string));
clientnum++;
}
else
{
if(nlGetError() == NL_SYSTEM_ERROR)
{
printErrorExit();
}
}
/* loop through the clients and read the packets */
for(i=0;i<clientnum;i++)
{
if(nlRead(client[i], buffer, sizeof(buffer)) > 0)
{
NLint j;
buffer[127] = 0; /* null terminate the char string */
printf("Client %d sent %s\n", i, buffer);
for(j=0;j<clientnum;j++)
{
if(i != j)
nlWrite(client[j], buffer, strlen(buffer));
}
}
}
sleep(0);
}
}
static void mainTestLoop(NLsocket sock)
{
while(1 == 1)
{
NLbyte buffer[100];
NLbyte string[NL_MAX_STRING_LENGTH];
NLaddress addr;
char hello[] = "Hello";
nlWrite(sock, (NLvoid *)hello, (NLint)sizeof(hello));
while(nlRead(sock, (NLvoid *)buffer, (NLint)sizeof(buffer)) > 0)
{
nlGetRemoteAddr(sock, &addr);
buffer[99] = (NLbyte)0;
printf("received %s from %s, packet #%d\n", buffer, nlAddrToString(&addr, string), nlGetInteger(NL_PACKETS_RECEIVED));
}
sleep(1);
}
}
int main(int argc, char **argv)
{
NLsocket sock;
NLaddress addr;
NLbyte buffer[4096];
int f;
NLint count, total = 0;
NLint crfound = 0;
NLint lffound = 0;
if (argc != 4)
{
printf("\nSyntax: getfile ServerName FullPath LocalFile\n");
return 1;
}
if(nlInit() == NL_FALSE)
printErrorExit();
if(nlSelectNetwork(NL_IP) == NL_FALSE)
printErrorExit();
nlEnable(NL_SOCKET_STATS);
nlEnable(NL_BLOCKING_IO);
nlGetAddrFromName(argv[1], &addr);
/* use the standard HTTP port */
nlSetAddrPort(&addr, 80);
printf("Server address is %s\n\n", nlAddrToString(&addr, buffer));
/* open the socket and connect to the server */
sock = nlOpen(0, NL_TCP);
if(sock == NL_INVALID)
printErrorExit();
if(nlConnect(sock, &addr) == NL_FALSE)
{
printErrorExit();
}
printf("Connected\n");
/* open the local file */
f = open(argv[3], O_BINARY|O_CREAT|O_TRUNC|O_RDWR, S_IWRITE | S_IREAD);
if(f < 0)
{
printf("Could not open local file\n");
printErrorExit();
}
/* now let's ask for the file */
#ifdef TEST_GZIP
/* this is for my own personal use to test compressed web pages */
sprintf(buffer, "GET %s HTTP/1.1\r\nHost:%s\r\nAccept: */*\r\nAccept-Encoding: gzip\r\nUser-Agent: HawkNL sample program Getfile\r\n\r\n"
, argv[2], argv[1]);
#else
sprintf(buffer, "GET %s HTTP/1.0\r\nHost:%s\r\nAccept: */*\r\nUser-Agent: HawkNL sample program Getfile\r\n\r\n"
, argv[2], argv[1]);
#endif
if(nlWrite(sock, (NLvoid *)buffer, (NLint)strlen(buffer)) == NL_INVALID)
{
close(f);
printErrorExit();
}
/* receive the file and write it locally */
while(1 == 1)
{
count = nlRead(sock, (NLvoid *)buffer, (NLint)sizeof(buffer) - 1);
if(count < 0)
{
NLint err = nlGetError();
/* is the connection closed? */
if(err == NL_MESSAGE_END)
{
break;
}
else
{
close(f);
printErrorExit();
}
}
total += count;
if(count > 0)
{
/* parse out the HTTP header */
if(lffound < 2)
{
int i;
for(i=0;i<count;i++)
{
if(buffer[i] == 0x0D)
{
crfound++;
}
else
{
if(buffer[i] == 0x0A)
{
lffound++;
}
else
{
/* reset the CR and LF counters back to 0 */
crfound = lffound = 0;
}
}
if(lffound == 2)
{
/* i points to the second LF */
/* NUL terminate the header string and print it out */
buffer[i] = buffer[i-1] = 0x0;
printf(buffer);
/* write out the rest to the file */
write(f, &buffer[i+1], count - i - 1);
break;
}
}
if(lffound < 2)
{
/* we reached the end of buffer, so print it out */
buffer[count + 1] = 0x0;
printf(buffer);
}
}
else
{
write(f, buffer, count);
printf("received %d bytes at %d bytes per second\r",
total, nlGetSocketStat(sock, NL_AVE_BYTES_RECEIVED));
}
}
}
close(f);
nlShutdown();
return 0;
}
int main(int argc, char **argv)
{
NLboolean isserver = NL_FALSE;
NLsocket serversock;
NLsocket clientsock;
NLaddress addr;
NLbyte server[] = "127.0.0.1:25000";
NLenum type = NL_UNRELIABLE; /* Change this to NL_RELIABLE for reliable connection */
NLbyte string[NL_MAX_STRING_LENGTH];
if(!nlInit())
printErrorExit();
printf("nlGetString(NL_VERSION) = %s\n\n", nlGetString(NL_VERSION));
printf("nlGetString(NL_NETWORK_TYPES) = %s\n\n", nlGetString(NL_NETWORK_TYPES));
if(!nlSelectNetwork(NL_IP))
printErrorExit();
if(argc > 1)
{
if(!strcmp(argv[1], "-s")) /* server mode */
isserver = NL_TRUE;
}
if(isserver)
{
/* create a server socket */
serversock = nlOpen(25000, type); /* just a random port number ;) */
if(serversock == NL_INVALID)
printErrorExit();
if(!nlListen(serversock)) /* let's listen on this socket */
{
nlClose(serversock);
printErrorExit();
}
nlGetLocalAddr(serversock, &addr);
printf("Server address is %s\n", nlAddrToString(&addr, string));
mainServerLoop(serversock);
}
else
{
/* create a client socket */
clientsock = nlOpen(0, type); /* let the system assign the port number */
nlGetLocalAddr(clientsock, &addr);
printf("our address is %s\n", nlAddrToString(&addr, string));
if(clientsock == NL_INVALID)
printErrorExit();
/* create the NLaddress */
nlStringToAddr(server, &addr);
printf("Address is %s\n", nlAddrToString(&addr, string));
/* now connect */
if(!nlConnect(clientsock, &addr))
{
nlClose(clientsock);
printErrorExit();
}
mainClientLoop(clientsock);
}
nlShutdown();
return 0;
}
