+ move( yBase + 1 + i, xBase );
+
+ if( currentItem == itemBase + i ) {
+ printw("| -> ");
+ }
+ else {
+ printw("| ");
+ }
+
+ // Check for ... row
+ // - Oh god, magic numbers!
+ if( i == 0 && itemBase > 0 ) {
+ printw(" ...");
+ times = width-1 - 8 - 3;
+ while(times--) addch(' ');
+ }
+ else if( i == itemCount - 1 && itemBase < giNumItems - itemCount ) {
+ printw(" ...");
+ times = width-1 - 8 - 3;
+ while(times--) addch(' ');
+ }
+ // Show an item
+ else {
+ ShowItemAt( yBase + 1 + i, xBase + 5, width - 7, itemBase + i);
+ addch(' ');
+ }
+
+ // Scrollbar (if needed)
+ if( giNumItems > itemCount ) {
+ if( i == 0 ) {
+ addch('A');
+ }
+ else if( i == itemCount - 1 ) {
+ addch('V');
+ }
+ else {
+ int percentage = itemBase * 100 / (giNumItems-itemCount);
+ if( i-1 == percentage*(itemCount-3)/100 ) {
+ addch('#');
+ }
+ else {
+ addch('|');
+ }
+ }
+ }
+ else {
+ addch('|');
+ }
+ }
+
+ // Footer
+ PrintAlign(yBase+height-2, xBase, width, "\\", '-', "", '-', "/");
+
+ // Get input
+ ch = getch();
+
+ if( ch == '\x1B' ) {
+ ch = getch();
+ if( ch == '[' ) {
+ ch = getch();
+
+ switch(ch)
+ {
+ case 'B':
+ //if( itemBase < giNumItems - (itemCount) )
+ // itemBase ++;
+ if( currentItem < giNumItems - 1 )
+ currentItem ++;
+ if( itemBase + itemCount - 1 <= currentItem && itemBase + itemCount < giNumItems )
+ itemBase ++;
+ break;
+ case 'A':
+ //if( itemBase > 0 )
+ // itemBase --;
+ if( currentItem > 0 )
+ currentItem --;
+ if( itemBase + 1 > currentItem && itemBase > 0 )
+ itemBase --;
+ break;
+ }
+ }
+ else {
+
+ }
+ }
+ else {
+ switch(ch)
+ {
+ case '\n':
+ ret = currentItem;
+ break;
+ case 'q':
+ ret = -1; // -1: Return with no dispense
+ break;
+ }
+
+ // Check if the return value was changed
+ if( ret != -2 ) break;
+ }
+
+ }
+
+
+ // Leave
+ endwin();
+ return ret;
+}
+
+/**
+ * \brief Show item \a Index at (\a Col, \a Row)
+ * \note Part of the NCurses UI
+ */
+void ShowItemAt(int Row, int Col, int Width, int Index)
+{
+ int _x, _y, times;
+ char *name;
+ int price;
+
+ move( Row, Col );
+
+ if( Index < 0 || Index >= giNumItems ) {
+ name = "OOR";
+ price = 0;
+ }
+ else {
+ name = gaItems[Index].Desc;
+ price = gaItems[Index].Price;
+ }
+
+ printw("%02i %s", Index, name);
+
+ getyx(stdscr, _y, _x);
+ // Assumes max 4 digit prices
+ times = Width - 4 - (_x - Col); // TODO: Better handling for large prices
+ while(times--) addch(' ');
+ printw("%4i", price);
+}
+
+/**
+ * \brief Print a three-part string at the specified position (formatted)
+ * \note NCurses UI Helper
+ *
+ * Prints \a Left on the left of the area, \a Right on the righthand side
+ * and \a Mid in the middle of the area. These are padded with \a Pad1
+ * between \a Left and \a Mid, and \a Pad2 between \a Mid and \a Right.
+ *
+ * ::printf style format codes are allowed in \a Left, \a Mid and \a Right,
+ * and the arguments to these are read in that order.
+ */
+void PrintAlign(int Row, int Col, int Width, const char *Left, char Pad1,
+ const char *Mid, char Pad2, const char *Right, ...)
+{
+ int lLen, mLen, rLen;
+ int times;
+
+ va_list args;
+
+ // Get the length of the strings
+ va_start(args, Right);
+ lLen = vsnprintf(NULL, 0, Left, args);
+ mLen = vsnprintf(NULL, 0, Mid, args);
+ rLen = vsnprintf(NULL, 0, Right, args);
+ va_end(args);
+
+ // Sanity check
+ if( lLen + mLen/2 > Width/2 || mLen/2 + rLen > Width/2 ) {
+ return ; // TODO: What to do?
+ }
+
+ move(Row, Col);
+
+ // Render strings
+ va_start(args, Right);
+ // - Left
+ {
+ char tmp[lLen+1];
+ vsnprintf(tmp, lLen+1, Left, args);
+ addstr(tmp);
+ }
+ // - Left padding
+ times = Width/2 - mLen/2 - lLen;
+ while(times--) addch(Pad1);
+ // - Middle
+ {
+ char tmp[mLen+1];
+ vsnprintf(tmp, mLen+1, Mid, args);
+ addstr(tmp);
+ }
+ // - Right Padding
+ times = Width/2 - mLen/2 - rLen;
+ while(times--) addch(Pad2);
+ // - Right
+ {
+ char tmp[rLen+1];
+ vsnprintf(tmp, rLen+1, Right, args);
+ addstr(tmp);
+ }
+}
+
+// ---------------------
+// --- Coke Protocol ---
+// ---------------------
+int OpenConnection(const char *Host, int Port)
+{
+ struct hostent *host;
+ struct sockaddr_in serverAddr;
+ int sock;
+
+ host = gethostbyname(Host);
+ if( !host ) {
+ fprintf(stderr, "Unable to look up '%s'\n", Host);
+ return -1;
+ }
+
+ memset(&serverAddr, 0, sizeof(serverAddr));
+
+ serverAddr.sin_family = AF_INET; // IPv4
+ // NOTE: I have a suspicion that IPv6 will play sillybuggers with this :)
+ serverAddr.sin_addr.s_addr = *((unsigned long *) host->h_addr_list[0]);
+ serverAddr.sin_port = htons(Port);
+
+ sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
+ if( sock < 0 ) {
+ fprintf(stderr, "Failed to create socket\n");
+ return -1;
+ }
+
+ #if USE_AUTOAUTH
+ {
+ struct sockaddr_in localAddr;
+ memset(&localAddr, 0, sizeof(localAddr));
+ localAddr.sin_family = AF_INET; // IPv4
+ localAddr.sin_port = 1023; // IPv4
+ // Attempt to bind to low port for autoauth
+ bind(sock, &localAddr, sizeof(localAddr));
+ }
+ #endif
+
+ if( connect(sock, (struct sockaddr *) &serverAddr, sizeof(serverAddr)) < 0 ) {
+ fprintf(stderr, "Failed to connect to server\n");
+ return -1;
+ }
+
+ return sock;
+}
+
+/**
+ * \brief Authenticate with the server
+ * \return Boolean Failure
+ */
+int Authenticate(int Socket)
+{
+ struct passwd *pwd;
+ char *buf;
+ int responseCode;
+ char salt[32];
+ int i;
+ regmatch_t matches[4];
+
+ if( gbIsAuthenticated ) return 0;
+
+ // Get user name
+ pwd = getpwuid( getuid() );
+
+ // Attempt automatic authentication
+ sendf(Socket, "AUTOAUTH %s\n", pwd->pw_name);
+
+ // Check if it worked
+ buf = ReadLine(Socket);
+
+ responseCode = atoi(buf);
+ switch( responseCode )
+ {
+
+ case 200: // Authenticated, return :)
+ gbIsAuthenticated = 1;
+ free(buf);
+ return 0;
+
+ case 401: // Untrusted, attempt password authentication
+ free(buf);
+
+ sendf(Socket, "USER %s\n", pwd->pw_name);
+ printf("Using username %s\n", pwd->pw_name);
+
+ buf = ReadLine(Socket);
+
+ // TODO: Get Salt
+ // Expected format: 100 SALT <something> ...
+ // OR : 100 User Set
+ RunRegex(&gSaltRegex, buf, 4, matches, "Malformed server response");
+ responseCode = atoi(buf);
+ if( responseCode != 100 ) {
+ fprintf(stderr, "Unknown repsonse code %i from server\n%s\n", responseCode, buf);
+ free(buf);
+ return -1; // ERROR
+ }
+
+ // Check for salt
+ if( memcmp( buf+matches[2].rm_so, "SALT", matches[2].rm_eo - matches[2].rm_so) == 0) {
+ // Store it for later
+ memcpy( salt, buf + matches[3].rm_so, matches[3].rm_eo - matches[3].rm_so );
+ salt[ matches[3].rm_eo - matches[3].rm_so ] = 0;
+ }
+ free(buf);
+
+ // Give three attempts
+ for( i = 0; i < 3; i ++ )
+ {
+ int ofs = strlen(pwd->pw_name)+strlen(salt);
+ char tmpBuf[42];
+ char tmp[ofs+20];
+ char *pass = getpass("Password: ");
+ uint8_t h[20];
+
+ // Create hash string
+ // <username><salt><hash>
+ strcpy(tmp, pwd->pw_name);
+ strcat(tmp, salt);
+ SHA1( (unsigned char*)pass, strlen(pass), h );
+ memcpy(tmp+ofs, h, 20);
+
+ // Hash all that
+ SHA1( (unsigned char*)tmp, ofs+20, h );
+ sprintf(tmpBuf, "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
+ h[ 0], h[ 1], h[ 2], h[ 3], h[ 4], h[ 5], h[ 6], h[ 7], h[ 8], h[ 9],
+ h[10], h[11], h[12], h[13], h[14], h[15], h[16], h[17], h[18], h[19]
+ );
+
+ // Send password
+ sendf(Socket, "PASS %s\n", tmpBuf);
+ buf = ReadLine(Socket);
+
+ responseCode = atoi(buf);
+ // Auth OK?
+ if( responseCode == 200 ) break;
+ // Bad username/password
+ if( responseCode == 401 ) continue;
+
+ fprintf(stderr, "Unknown repsonse code %i from server\n%s\n", responseCode, buf);
+ free(buf);
+ return -1;
+ }
+ free(buf);
+ if( i < 3 ) {
+ gbIsAuthenticated = 1;