+
+void ShowItemAt(int Row, int Col, int Width, int Index)
+{
+ int _x, _y, times;
+
+ move( Row, Col );
+
+ if( Index < 0 || Index >= giNumItems ) {
+ printw("%02i OOR", Index);
+ return ;
+ }
+ printw("%02i %s", Index, gaItems[Index].Desc);
+
+ 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", gaItems[Index].Price);
+}
+
+/**
+ */
+int ShowNCursesUI(void)
+{
+ int ch;
+ int i, times;
+ int xBase, yBase;
+ const int displayMinWidth = 34;
+ const int displayMinItems = 8;
+ char *titleString = "Dispense";
+ int itemCount = displayMinItems;
+ int itemBase = 0;
+
+ int height = itemCount + 3;
+ int width = displayMinWidth;
+
+ // Enter curses mode
+ initscr();
+ raw(); noecho();
+
+ xBase = COLS/2 - width/2;
+ yBase = LINES/2 - height/2;
+
+ for( ;; )
+ {
+ // Header
+ PrintAlign(yBase, xBase, width, "/", '-', titleString, '-', "\\");
+
+ // Items
+ for( i = 0; i < itemCount; i ++ )
+ {
+ move( yBase + 1 + i, xBase );
+ addch('|');
+ addch(' ');
+
+ // Check for ... row
+ if( i == 0 && itemBase > 0 ) {
+ printw(" ...");
+ times = width - 1 - 8;
+ while(times--) addch(' ');
+ }
+ else if( i == itemCount - 1 && itemBase < giNumItems - itemCount ) {
+ printw(" ...");
+ times = width - 1 - 8;
+ while(times--) addch(' ');
+ }
+ // Show an item
+ else {
+ ShowItemAt( yBase + 1 + i, xBase + 2, width - 4, 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 ++;
+ break;
+ case 'A':
+ if( itemBase > 0 )
+ itemBase --;
+ break;
+ }
+ }
+ else {
+
+ }
+ }
+ else {
+ break;
+ }
+
+ }
+
+
+ // Leave
+ endwin();
+ return -1;
+}
+
+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);
+ }
+}
+
+// === HELPERS ===
+int sendf(int Socket, const char *Format, ...)
+{
+ va_list args;
+ int len;
+
+ va_start(args, Format);
+ len = vsnprintf(NULL, 0, Format, args);
+ va_end(args);
+
+ {
+ char buf[len+1];
+ va_start(args, Format);
+ vsnprintf(buf, len+1, Format, args);
+ va_end(args);
+
+ return send(Socket, buf, len, 0);
+ }
+}
+
+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;
+}
+
+void Authenticate(int Socket)
+{
+ struct passwd *pwd;
+ char buf[512];
+ int responseCode;
+
+ // Get user name
+ pwd = getpwuid( getuid() );
+
+ // Attempt automatic authentication
+ sendf(Socket, "AUTOAUTH %s\n", pwd->pw_name);
+
+ // Check if it worked
+ recv(Socket, buf, 511, 0);
+ trim(buf);
+
+ responseCode = atoi(buf);
+ switch( responseCode )
+ {
+ case 200: // Authenticated, return :)
+ return ;
+ case 401: // Untrusted, attempt password authentication
+ break;
+ case 404: // Bad Username
+ fprintf(stderr, "Bad Username '%s'\n", pwd->pw_name);
+ exit(-1);
+ default:
+ fprintf(stderr, "Unkown response code %i from server\n", responseCode);
+ printf("%s\n", buf);
+ exit(-1);
+ }
+
+ printf("%s\n", buf);
+}
+
+char *trim(char *string)
+{
+ int i;
+
+ while( isspace(*string) )
+ string ++;
+
+ for( i = strlen(string); i--; )
+ {
+ if( isspace(string[i]) )
+ string[i] = '\0';
+ else
+ break;
+ }
+
+ return string;
+}
+
+int RunRegex(regex_t *regex, const char *string, int nMatches, regmatch_t *matches, const char *errorMessage)
+{
+ int ret;
+
+ ret = regexec(regex, string, nMatches, matches, 0);
+ if( ret ) {
+ size_t len = regerror(ret, regex, NULL, 0);
+ char errorStr[len];
+ regerror(ret, regex, errorStr, len);
+ printf("string = '%s'\n", string);
+ fprintf(stderr, "%s\n%s", errorMessage, errorStr);
+ exit(-1);
+ }
+
+ return ret;
+}
+
+void CompileRegex(regex_t *regex, const char *pattern, int flags)
+{
+ int ret = regcomp(regex, pattern, flags);
+ if( ret ) {
+ size_t len = regerror(ret, regex, NULL, 0);
+ char errorStr[len];
+ regerror(ret, regex, errorStr, len);
+ fprintf(stderr, "Regex compilation failed - %s\n", errorStr);
+ exit(-1);
+ }
+}