subsys/system/cmd/start.c

   1 /*
   2  *  START.C - start internal command.
   3  *
   4  *
   5  *  History:
   6  *
   7  *    24-Jul-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
   8  *        Started.
   9  */
  10
  11 #include "config.h"
  12
  13 #ifdef INCLUDE_CMD_START
  14 #include <windows.h>
  15 #include <tchar.h>
  16 #include <string.h>
  17 #include <stdlib.h>
  18 #include <ctype.h>
  19
  20 #include "cmd.h"
  21
  22
  23 INT cmd_start (LPTSTR first, LPTSTR rest)
  24 {
  25         TCHAR szFullName[MAX_PATH];
  26         BOOL bWait = FALSE;
  27         TCHAR *param;
  28
  29         if (_tcsncmp (rest, _T("/?"), 2) == 0)
  30         {
  31                 ConOutPuts (_T("Starts a command.\n\n"
  32                                    "START command \n\n"
  33                                    "  command     Specifies the command to run.\n\n"
  34                                    "At the moment all commands are started asynchronously.\n"));
  35
  36                 return 0;
  37         }
  38
  39         /* check for a drive change */
  40         if (!_tcscmp (first + 1, _T(":")) && _istalpha (*first))
  41         {
  42                 TCHAR szPath[MAX_PATH];
  43
  44                 _tcscpy (szPath, _T("A:"));
  45                 szPath[0] = _totupper (*first);
  46                 SetCurrentDirectory (szPath);
  47                 GetCurrentDirectory (MAX_PATH, szPath);
  48                 if (szPath[0] != (TCHAR)_totupper (*first))
  49                         ConErrPuts (INVALIDDRIVE);
  50
  51                 return 0;
  52         }
  53         if( !*rest )
  54           {
  55             // FIXME: use comspec instead
  56             rest = _T("cmd");
  57           }
  58         /* get the PATH environment variable and parse it */
  59         /* search the PATH environment variable for the binary */
  60         param = _tcschr( rest, _T(' ') );  // skip program name to reach parameters
  61         if( param )
  62           {
  63             *param = 0;
  64             param++;
  65           }
  66         if (!SearchForExecutable (rest, szFullName))
  67         {
  68                 error_bad_command ();
  69                 return 1;
  70         }
  71         /* check if this is a .BAT or .CMD file */
  72         if (!_tcsicmp (_tcsrchr (szFullName, _T('.')), _T(".bat")) ||
  73                 !_tcsicmp (_tcsrchr (szFullName, _T('.')), _T(".cmd")))
  74         {
  75 #ifdef _DEBUG
  76                 DebugPrintf (_T("[BATCH: %s %s]\n"), szFullName, rest);
  77 #endif
  78                 ConErrPuts (_T("No batch support at the moment!"));
  79         }
  80         else
  81         {
  82                 /* exec the program */
  83                 TCHAR szFullCmdLine [CMDLINE_LENGTH];
  84                 PROCESS_INFORMATION prci;
  85                 STARTUPINFO stui;
  86
  87 #ifdef _DEBUG
  88                 DebugPrintf (_T("[EXEC: %s %s]\n"), szFullName, rest);
  89 #endif
  90                 /* build command line for CreateProcess() */
  91                 _tcscpy (szFullCmdLine, first);
  92                 if( param )
  93                   {
  94                     _tcscat(szFullCmdLine, _T(" ") );
  95                     _tcscat (szFullCmdLine, param);
  96                   }
  97
  98                 /* fill startup info */
  99                 memset (&stui, 0, sizeof (STARTUPINFO));
 100                 stui.cb = sizeof (STARTUPINFO);
 101                 stui.dwFlags = STARTF_USESHOWWINDOW;
 102                 stui.wShowWindow = SW_SHOWDEFAULT;
 103
 104                 if (CreateProcess (szFullName, szFullCmdLine, NULL, NULL, FALSE,
 105                                                    CREATE_NEW_CONSOLE, NULL, NULL, &stui, &prci))
 106                 {
 107                         if (bWait)
 108                         {
 109                                 DWORD dwExitCode;
 110                                 WaitForSingleObject (prci.hProcess, INFINITE);
 111                                 GetExitCodeProcess (prci.hProcess, &dwExitCode);
 112                                 nErrorLevel = (INT)dwExitCode;
 113                         }
 114                         CloseHandle (prci.hThread);
 115                         CloseHandle (prci.hProcess);
 116                 }
 117                 else
 118                 {
 119                         ErrorMessage (GetLastError (),
 120                                                   _T("Error executing CreateProcess()!!\n"));
 121                 }
 122         }
 123
 124         return 0;
 125 }
 126
 127 #endif
 128
 129 /* EOF */