reactos/base/applications/network/telnet/src/tnmisc.cpp

   1 #include <windows.h>
   2 #include <stdio.h>
   3
   4 #include "tnmisc.h"
   5
   6 // from the PVAX (http://www.ccas.ru/~posp/popov/spawn.htm)
   7 // Create a process with pipes to stdin/out/err
   8 BOOL CreateHiddenConsoleProcess(LPCTSTR szChildName, PROCESS_INFORMATION* ppi,
   9                                 LPHANDLE phInWrite, LPHANDLE phOutRead,
  10                                 LPHANDLE phErrRead) {
  11     BOOL fCreated;
  12     STARTUPINFO si;
  13     SECURITY_ATTRIBUTES sa;
  14     HANDLE hInRead;
  15     HANDLE hOutWrite;
  16     HANDLE hErrWrite;
  17
  18     // Create pipes
  19     // initialize security attributes for handle inheritance (for WinNT)
  20     sa.nLength = sizeof( sa );
  21     sa.bInheritHandle = TRUE;
  22     sa.lpSecurityDescriptor  = NULL;
  23
  24     // create STDIN pipe
  25     if( !CreatePipe( &hInRead, phInWrite, &sa, 0 ))
  26         goto error;
  27
  28     // create STDOUT pipe
  29     if( !CreatePipe( phOutRead, &hOutWrite, &sa, 0 ))
  30         goto error;
  31
  32     // create STDERR pipe
  33     if( !CreatePipe( phErrRead, &hErrWrite, &sa, 0 ))
  34         goto error;
  35
  36     // process startup information
  37     memset( &si, 0, sizeof( si ));
  38     si.cb = sizeof( si );
  39     si.dwFlags = STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES;
  40     // child process' console must be hidden for Win95 compatibility
  41     si.wShowWindow = SW_HIDE;
  42     // assign "other" sides of pipes
  43     si.hStdInput = hInRead;
  44     si.hStdOutput = hOutWrite;
  45     si.hStdError = hErrWrite;
  46
  47     // Create a child process (suspended)
  48     fCreated = CreateProcess( NULL,
  49                               (LPTSTR)szChildName,
  50                               NULL,
  51                               NULL,
  52                               TRUE,
  53                               0,
  54                               NULL,
  55                               NULL,
  56                               &si,
  57                               ppi );
  58
  59     if( !fCreated )
  60         goto error;
  61
  62     CloseHandle( hInRead );
  63     CloseHandle( hOutWrite );
  64     CloseHandle( hErrWrite );
  65
  66     return TRUE;
  67
  68 error:
  69     CloseHandle( hInRead );
  70     CloseHandle( hOutWrite );
  71     CloseHandle( hErrWrite );
  72     CloseHandle( ppi->hProcess );
  73     CloseHandle( ppi->hThread );
  74
  75     hInRead =
  76     hOutWrite =
  77     hErrWrite =
  78     ppi->hProcess =
  79     ppi->hThread = INVALID_HANDLE_VALUE;
  80
  81     return FALSE;
  82 }
  83
  84 BOOL SpawnProcess(char *cmd_line, PROCESS_INFORMATION *pi) {
  85         STARTUPINFO si;
  86
  87         memset(&si, 0, sizeof(si));
  88         si.cb = sizeof(si);
  89
  90         return CreateProcess(cmd_line, NULL, NULL, FALSE, NORMAL_PRIORITY_CLASS,
  91                              CREATE_NEW_CONSOLE, NULL, NULL, &si, pi);
  92 }
  93
  94 // crn@ozemail.com.au
  95 int GetWin32Version(void) {
  96         // return win32 version; 0 = Win32s, 1 = Win95, 2 = WinNT, 3 = Unknown -crn@ozemail.com.au
  97         LPOSVERSIONINFO osv;
  98         DWORD retval;
  99
 100         osv = new OSVERSIONINFO;
 101
 102         osv->dwOSVersionInfoSize = sizeof (OSVERSIONINFO);
 103         GetVersionEx (osv);
 104         retval = osv->dwPlatformId;
 105         delete osv;
 106         return (retval);
 107 }
 108
 109 // Paul Brannan 8/7/98
 110 // This code is from Michael 'Hacker' Krelin (author of KINSole)
 111 // (slightly modified)
 112 HWND TelnetGetConsoleWindow() {
 113         DWORD pid = GetCurrentProcessId(), wpid;
 114         char title[512], *t = title;
 115         HWND hrv = NULL;
 116
 117 #ifndef __BORLANDC__    // Ioannou Dec. 8, 1998
 118         if(!GetConsoleTitle(title, sizeof(title))) t = NULL;
 119
 120         for(;;) {
 121                 if((hrv = FindWindowEx(NULL, hrv, "tty", t)) == NULL) break;
 122                 if(!GetWindowThreadProcessId(hrv, &wpid)) continue;
 123                 if(wpid == pid) return hrv;
 124         }
 125 #endif
 126
 127         return GetForegroundWindow();
 128 }
 129
 130 // Sets the icon of the console window to hIcon
 131 // If hIcon is 0, then use a default icon
 132 // hConsoleWindow must be set before calling SetIcon
 133 bool SetIcon(HWND hConsoleWindow, HANDLE hIcon, LPARAM *pOldBIcon, LPARAM *pOldSIcon,
 134                          const char *icondir) {
 135         if(!hConsoleWindow) return false;
 136
 137 // FIX ME!!! The LoadIcon code should work with any compiler!
 138 // (Paul Brannan 12/17/98)
 139 #ifndef __BORLANDC__ // Ioannou Dec. 8, 1998
 140         if(!hIcon) {
 141                 char filename[MAX_PATH];                                        // load from telnet.ico
 142                 _snprintf(filename, MAX_PATH - 1, "%s%s", icondir, "telnet.ico");
 143                 filename[MAX_PATH - 1] = '\0';
 144
 145                 // Note: loading the icon from a file doesn't work on NT
 146                 // There is no LoadImage in Borland headers - only LoadIcon
 147                 hIcon = LoadImage(NULL, filename, IMAGE_ICON, 0, 0, LR_DEFAULTSIZE +
 148                         LR_LOADFROMFILE);
 149         }
 150 #else
 151         // load the icon from the resource file -crn@ozemail.com.au 16/12/98
 152         if(!hIcon) {
 153                 hIcon = LoadIcon ((HANDLE)GetWindowLongPtr(hConsoleWindow,
 154                         GWL_HINSTANCE), "TELNETICON");
 155         }
 156 #endif
 157
 158         if(hIcon) {
 159 #ifdef ICON_BIG
 160                 *pOldBIcon = SendMessage(hConsoleWindow, WM_SETICON, ICON_BIG,
 161                         (LPARAM)hIcon);
 162 #endif
 163 #ifdef ICON_SMALL
 164                 *pOldSIcon = SendMessage(hConsoleWindow, WM_SETICON, ICON_SMALL,
 165                         (LPARAM)hIcon);
 166 #endif
 167                 return true;
 168         } else {
 169                 // Otherwise we get a random icon at exit! (Paul Brannan 9/13/98)
 170                 return false;
 171         }
 172 }
 173
 174 // Allows SetIcon to be called again by resetting the current icon
 175 // Added 12/17/98 by Paul Brannan
 176 void ResetIcon(HWND hConsoleWindow, LPARAM oldBIcon, LPARAM oldSIcon) {
 177 #ifdef ICON_BIG
 178         SendMessage(hConsoleWindow, WM_SETICON, ICON_BIG, (LPARAM)oldBIcon);
 179 #endif
 180 #ifdef ICON_SMALL
 181         SendMessage(hConsoleWindow, WM_SETICON, ICON_SMALL, (LPARAM)oldSIcon);
 182 #endif
 183 }