int main(int argc, char* argv[])
{
char* vip = NULL; //IP-Adresse des Servers, Variable muss später freigegeben werden
int vport = -1; //Portnummer
// int error = 0; //nur temorär verwendet zum debugging
memset(username,'\0',sizeof(username));
/* Start der GETOPT behandlung */
{
int c;
int counter = 0;
int sl = 0;
if(argc <3)
print_usage();
while( (c = getopt(argc, argv, "i:p:")) != EOF )
{
switch (c)
{
case 'p':
if(vport!=-1)
{
print_usage();
break;
}
vport = strtol(optarg,(char**)NULL,10);
counter++;
break;
case 'i':
if(vip!=NULL)
{
print_usage();
break;
}
sl = strlen(optarg);
vip = (char*) malloc(sizeof(char)* (sl+1));
strcpy(vip, optarg);
counter++;
break;
case '?':
print_usage();
break;
}
}
// printf("\nIP: %s, Port: %d\n",vip, vport);
// printf("\nCounter: %d; optind: %d; argc: %d\n", counter, optind, argc);
if(counter!= 2 || optind!=argc || vport < 1)
print_usage();
//printf("\n FERTIG\n ");
/* ENDE GETOPT */
}
/* Kommunikation mit server */
{
int create_socket;
char buffer[BUF];
struct sockaddr_in address;
char* command;
char* file;
memset(buffer,'\0',sizeof(buffer));
/* Socket erstellen */
{
if ((create_socket = socket (AF_INET, SOCK_STREAM, 0)) == -1)
{
perror("Socket error");
return EXIT_FAILURE;
}
memset(&address,0,sizeof(address));
address.sin_family = AF_INET;
address.sin_port = htons (vport);
inet_aton(vip, &address.sin_addr);
free(vip);
}
/* connect */
{
if (connect ( create_socket, (struct sockaddr *) &address, sizeof (address)) == 0)
{
clrscr();
do
{
if(read(create_socket,buffer,BUF)==-1)
perror("Error reading stuff");
if(!strcmp(buffer,"fail"))
{
perror("Server failed, shutting down client...");
close (create_socket);
return EXIT_FAILURE;
}
if(!strncasecmp(buffer,"block",5))
{
strtok(buffer, "|");
char* printmsg = strtok(NULL, "|");
printf("\n%s\nShutting down client..\n",printmsg);
close(create_socket);
return EXIT_FAILURE;
}
}
while(strcmp(buffer,"win"));
printf ("Connection with server (%s) established\nPlease log in first with comand: \"LOGIN\"\n", inet_ntoa (address.sin_addr));
}
else
{
perror("Connect error - no server available");
return EXIT_FAILURE;
}
}
do
{
login = 0;
printf ("Send command: ");
s_gets(buffer, BUF);
/* String trennen */
{
char buf2[BUF];
strcpy(buf2,buffer);
command = strtok(buf2, " ");
file = strtok(NULL, "\n");
// printf("Command: %s\nFile: %s\nbuf2: %s\n\n",command,file,buf2);
}
// printf("Command = %s\n", command);
// if(file!=NULL)
//printf("File = %s\n", file);
/* Befehl ausführen */
{
if(!strcasecmp(command, "LIST"))
{
if(send(create_socket, command, strlen (command), 0)==-1)
perror("Error sending stuff");
do
{
if(read(create_socket,buffer,BUF)==-1)
perror("Error reading stuff");
if(!strcmp(buffer,"log"))
{
// printf("Server refused, login first\n");
login=1;
break;
}
}
while(strcmp(buffer,"server ready"));
if(!login)
{
printf("List wird ausgeführt\n\nListe:\n");
memset(buffer,'\0',sizeof(buffer));
{
strcpy(buffer,"start");
if(write(create_socket,buffer,BUF)==-1)
perror("Error writing stuff");
memset(buffer,'\0',sizeof(buffer));
}
do
{
if(read(create_socket,buffer, BUF)==-1)
perror("Error writing stuff");
//buffer[BUF-1] = '\0';
printf("%s",buffer);
/* if(!strcmp(buffer,"list"))
{
perror("\”Server error, shut down client\n");
return EXIT_FAILURE;
}*/
}
while (strlen(buffer)!=0);
printf("\n");
}
else
{
printf("Error in LIST, you must login first, send command: \"LOGIN\"\n\n");
}
}
else if(!strcasecmp(command, "GET"))
{
if(strstr(file, ".."))
printf("Wrong filename, filename must not contain \"..\"\n");
else
c_get(create_socket, file);
}
else if(!strcasecmp(command, "PUT"))
{
c_put(create_socket, file);
}
else if(!strcasecmp(command, "LOGIN"))
{
//printf("Put wird ausgeführt\n");
if(send(create_socket, command, strlen (command), 0)==-1)
perror("Error sending stuff");
do
{
if(read(create_socket,buffer,BUF)==-1)
perror("Error reading stuff");
if(!strcmp(buffer,"log"))
{
login = 1;
break;
}
}
while(strcmp(buffer,"server ready"));
if(!login)
{
clrscr();
client_auth(create_socket);
}
else
{
printf("Login refused\nAlready logged in as: %s\n\n",username);
}
}
else if(!strcasecmp(command, "QUIT"))
{
printf("Client wird beendet\n");
}
else
{
printf("Unknown command: %s\n\n", command);
//error = 1;
}
}
}
while (strcasecmp (command, "QUIT") != 0);
close (create_socket);
}
/* Ende Verbindung */
return 0;
}
void print(char *str) {
char *ch = str;
while ( *ch!= '\0')
c_put(USART2, (*ch++));
}
void
docmd(void)
{
int c;
struct ww *w;
char out = 0;
while (!out && !quit) {
if ((c = wwgetc()) < 0) {
if (terse)
wwsetcursor(0, 0);
else {
wwputs("Command: ", cmdwin);
wwcurtowin(cmdwin);
}
do
wwiomux();
while ((c = wwgetc()) < 0);
}
if (!terse)
wwputc('\n', cmdwin);
switch (c) {
default:
if (c != escapec)
break;
case 'h': case 'j': case 'k': case 'l':
case 'y': case 'p':
case ctrl('y'):
case ctrl('e'):
case ctrl('u'):
case ctrl('d'):
case ctrl('b'):
case ctrl('f'):
case ctrl('s'):
case ctrl('q'):
case ctrl('['):
if (selwin == 0) {
error("No window.");
continue;
}
}
switch (c) {
case '1': case '2': case '3': case '4': case '5':
case '6': case '7': case '8': case '9':
if ((w = window[c - '1']) == 0) {
error("%c: No such window.", c);
break;
}
setselwin(w);
if (checkproc(selwin) >= 0)
out = 1;
break;
case '%':
if ((w = getwin()) != 0)
setselwin(w);
break;
case ctrl('^'):
if (lastselwin != 0) {
setselwin(lastselwin);
if (checkproc(selwin) >= 0)
out = 1;
} else
error("No previous window.");
break;
case 'c':
if ((w = getwin()) != 0)
closewin(w);
break;
case 'w':
c_window();
break;
case 'm':
if ((w = getwin()) != 0)
c_move(w);
break;
case 'M':
if ((w = getwin()) != 0)
movewin(w, w->ww_alt.t, w->ww_alt.l);
break;
case 's':
if ((w = getwin()) != 0)
c_size(w);
break;
case 'S':
if ((w = getwin()) != 0)
sizewin(w, w->ww_alt.nr, w->ww_alt.nc);
break;
case 'y':
c_yank();
break;
case 'p':
c_put();
break;
case ':':
c_colon();
break;
case 'h':
(void) wwwrite(selwin, "\b", 1);
break;
case 'j':
(void) wwwrite(selwin, "\n", 1);
break;
case 'k':
(void) wwwrite(selwin, "\033A", 2);
break;
case 'l':
(void) wwwrite(selwin, "\033C", 2);
break;
case ctrl('e'):
wwscroll(selwin, 1);
break;
case ctrl('y'):
wwscroll(selwin, -1);
break;
case ctrl('d'):
wwscroll(selwin, selwin->ww_w.nr / 2);
break;
case ctrl('u'):
wwscroll(selwin, - selwin->ww_w.nr / 2);
break;
case ctrl('f'):
wwscroll(selwin, selwin->ww_w.nr);
break;
case ctrl('b'):
wwscroll(selwin, - selwin->ww_w.nr);
break;
case ctrl('s'):
stopwin(selwin);
break;
case ctrl('q'):
startwin(selwin);
break;
case ctrl('l'):
wwredraw();
break;
case '?':
c_help();
break;
case ctrl('['):
if (checkproc(selwin) >= 0)
out = 1;
break;
case ctrl('z'):
wwsuspend();
break;
case 'q':
c_quit();
break;
/* debugging stuff */
case '&':
if (debug) {
c_debug();
break;
}
default:
if (c == escapec) {
if (checkproc(selwin) >= 0) {
(void) write(selwin->ww_pty,
&escapec, 1);
out = 1;
}
} else {
if (!terse)
wwbell();
error("Type ? for help.");
}
}
}
if (!quit)
setcmd(0);
}
/**F*****************************************************************/
int dispatch (spp_ctx *c)
/**
* PURPOSE : receives commands from remote server
*
* RETURN : 1 to terminate else 0
*
* NOTES :
*
*F*/
{
DWORD e, terminate=0, end=0;
spp_blk in;
DWORD sck_evt;
HANDLE evt[MAXIMUM_WAIT_OBJECTS];
DWORD evt_cnt=0;
evt[sck_evt = evt_cnt++] = WSACreateEvent();
do {
// wait for event
e=wait_evt(evt, evt_cnt, sck_evt, c->s);
// failure? exit
if (e == -1) {
printf ("[ wait_evt() failure : returned %08X\n", e);
return 0;
}
// receive packet
if (spp_recv(c, &in) != SPP_ERR_OK) {
break;
}
// inspect packet
switch (in.cmd.opt)
{
// terminate client
case SPP_CMD_TERM : {
DEBUG_PRINT("received command to terminate");
terminate=1;
break;
}
// close the connection
case SPP_CMD_CLOSE : {
DEBUG_PRINT("received command to close connection");
end=1;
break;
}
// execute cmd.exe for remote server
case SPP_CMD_SHELL : {
DEBUG_PRINT("received command to execute cmd.exe");
cmd(c);
break;
}
// send a file to remote server
// buf should contain the name of file to open
case SPP_CMD_GET : {
DEBUG_PRINT("received command to send file");
c_get(c, in.cmd.buf);
break;
}
// receive a file from remote server
// buf should contain the name of file to create
case SPP_CMD_PUT : {
DEBUG_PRINT("received command to receive file");
c_put(c, in.cmd.buf);
break;
}
default:
DEBUG_PRINT("unknown command received %08X", in.cmd.opt);
break;
}
// continue until close or terminate
} while (!end && !terminate);
return terminate;
}