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

   1 #include <windows.h>
   2 #include <stdlib.h>
   3 #include <memory.h>
   4
   5 #include "tnmisc.h"
   6
   7 // from the PVAX (http://www.ccas.ru/~posp/popov/spawn.htm)
   8 // Create a process with pipes to stdin/out/err
   9 BOOL CreateHiddenConsoleProcess(LPCTSTR szChildName, PROCESS_INFORMATION* ppi,
  10                                 LPHANDLE phInWrite, LPHANDLE phOutRead,
  11                                 LPHANDLE phErrRead) {
  12     BOOL fCreated;
  13     STARTUPINFO si;
  14     SECURITY_ATTRIBUTES sa;
  15     HANDLE hInRead;
  16     HANDLE hOutWrite;
  17     HANDLE hErrWrite;
  18
  19     // Create pipes
  20     // initialize security attributes for handle inheritance (for WinNT)
  21     sa.nLength = sizeof( sa );
  22     sa.bInheritHandle = TRUE;
  23     sa.lpSecurityDescriptor  = NULL;
  24
  25     // create STDIN pipe
  26     if( !CreatePipe( &hInRead, phInWrite, &sa, 0 ))
  27         goto error;
  28
  29     // create STDOUT pipe
  30     if( !CreatePipe( phOutRead, &hOutWrite, &sa, 0 ))
  31         goto error;
  32
  33     // create STDERR pipe
  34     if( !CreatePipe( phErrRead, &hErrWrite, &sa, 0 ))
  35         goto error;
  36
  37     // process startup information
  38     memset( &si, 0, sizeof( si ));
  39     si.cb = sizeof( si );
  40     si.dwFlags = STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES;
  41     // child process' console must be hidden for Win95 compatibility
  42     si.wShowWindow = SW_HIDE;
  43     // assign "other" sides of pipes
  44     si.hStdInput = hInRead;
  45     si.hStdOutput = hOutWrite;
  46     si.hStdError = hErrWrite;
  47
  48     // Create a child process (suspended)
  49     fCreated = CreateProcess( NULL,
  50                               (LPTSTR)szChildName,
  51                               NULL,
  52                               NULL,
  53                               TRUE,
  54                               0,
  55                               NULL,
  56                               NULL,
  57                               &si,
  58                               ppi );
  59
  60     if( !fCreated )
  61         goto error;
  62
  63     CloseHandle( hInRead );
  64     CloseHandle( hOutWrite );
  65     CloseHandle( hErrWrite );
  66
  67     return TRUE;
  68
  69 error:
  70     CloseHandle( hInRead );
  71     CloseHandle( hOutWrite );
  72     CloseHandle( hErrWrite );
  73     CloseHandle( ppi->hProcess );
  74     CloseHandle( ppi->hThread );
  75
  76     hInRead =
  77     hOutWrite =
  78     hErrWrite =
  79     ppi->hProcess =
  80     ppi->hThread = INVALID_HANDLE_VALUE;
  81
  82     return FALSE;
  83 }
  84
  85 BOOL SpawnProcess(char *cmd_line, PROCESS_INFORMATION *pi) {
  86         STARTUPINFO si;
  87
  88         memset(&si, 0, sizeof(si));
  89         si.cb = sizeof(si);
  90
  91         return CreateProcess(cmd_line, NULL, NULL, FALSE, NORMAL_PRIORITY_CLASS,
  92                              CREATE_NEW_CONSOLE, NULL, NULL, &si, pi);
  93 }
  94
  95 // crn@ozemail.com.au
  96 int GetWin32Version(void) {
  97         // return win32 version; 0 = Win32s, 1 = Win95, 2 = WinNT, 3 = Unknown -crn@ozemail.com.au
  98         LPOSVERSIONINFO osv;
  99         DWORD retval;
 100
 101         osv = new OSVERSIONINFO;
 102
 103         osv->dwOSVersionInfoSize = sizeof (OSVERSIONINFO);
 104         GetVersionEx (osv);
 105         retval = osv->dwPlatformId;
 106         delete osv;
 107         return (retval);
 108 }
 109
 110 // Paul Brannan 8/7/98
 111 // This code is from Michael 'Hacker' Krelin (author of KINSole)
 112 // (slightly modified)
 113 HWND TelnetGetConsoleWindow() {
 114         DWORD pid = GetCurrentProcessId(), wpid;
 115         char title[512], *t = title;
 116         HWND hrv = NULL;
 117
 118 #ifndef __BORLANDC__    // Ioannou Dec. 8, 1998
 119         if(!GetConsoleTitle(title, sizeof(title))) t = NULL;
 120
 121         for(;;) {
 122                 if((hrv = FindWindowEx(NULL, hrv, "tty", t)) == NULL) break;
 123                 if(!GetWindowThreadProcessId(hrv, &wpid)) continue;
 124                 if(wpid == pid) return hrv;
 125         }
 126 #endif
 127
 128         return GetForegroundWindow();
 129 }
 130
 131 // Sets the icon of the console window to hIcon
 132 // If hIcon is 0, then use a default icon
 133 // hConsoleWindow must be set before calling SetIcon
 134 bool SetIcon(HWND hConsoleWindow, HANDLE hIcon, LPARAM *pOldBIcon, LPARAM *pOldSIcon,
 135                          const char *icondir) {
 136         if(!hConsoleWindow) return false;
 137
 138 // FIX ME!!! The LoadIcon code should work with any compiler!
 139 // (Paul Brannan 12/17/98)
 140 #ifndef __BORLANDC__ // Ioannou Dec. 8, 1998
 141         if(!hIcon) {
 142                 char filename[128];                                     // load from telnet.ico
 143                 strncpy(filename, icondir, sizeof(filename));
 144                 strncat(filename, "telnet.ico", sizeof(filename));
 145                 filename[sizeof(filename) - 1] = 0;
 146
 147                 // Note: loading the icon from a file doesn't work on NT
 148                 // There is no LoadImage in Borland headers - only LoadIcon
 149                 hIcon = LoadImage(NULL, filename, IMAGE_ICON, 0, 0, LR_DEFAULTSIZE +
 150                         LR_LOADFROMFILE);
 151         }
 152 #else
 153         // load the icon from the resource file -crn@ozemail.com.au 16/12/98
 154         if(!hIcon) {
 155                 hIcon = LoadIcon ((HANDLE)GetWindowLong(hConsoleWindow,
 156                         GWL_HINSTANCE), "TELNETICON");
 157         }
 158 #endif
 159
 160         if(hIcon) {
 161 #ifdef ICON_BIG
 162                 *pOldBIcon = SendMessage(hConsoleWindow, WM_SETICON, ICON_BIG,
 163                         (LPARAM)hIcon);
 164 #endif
 165 #ifdef ICON_SMALL
 166                 *pOldSIcon = SendMessage(hConsoleWindow, WM_SETICON, ICON_SMALL,
 167                         (LPARAM)hIcon);
 168 #endif
 169                 return true;
 170         } else {
 171                 // Otherwise we get a random icon at exit! (Paul Brannan 9/13/98)
 172                 return false;
 173         }
 174 }
 175
 176 // Allows SetIcon to be called again by resetting the current icon
 177 // Added 12/17/98 by Paul Brannan
 178 void ResetIcon(HWND hConsoleWindow, LPARAM oldBIcon, LPARAM oldSIcon) {
 179 #ifdef ICON_BIG
 180         SendMessage(hConsoleWindow, WM_SETICON, ICON_BIG, (LPARAM)oldBIcon);
 181 #endif
 182 #ifdef ICON_SMALL
 183         SendMessage(hConsoleWindow, WM_SETICON, ICON_SMALL, (LPARAM)oldSIcon);
 184 #endif
 185 }