rosapps/cmd/type.c

   1 /*
   2  *  TYPE.C - type internal command.
   3  *
   4  *  History:
   5  *
   6  *    07/08/1998 (John P. Price)
   7  *        started.
   8  *
   9  *    07/12/98 (Rob Lake)
  10  *        Changed error messages
  11  *
  12  *    27-Jul-1998 (John P Price <linux-guru@gcfl.net>)
  13  *        added config.h include
  14  *
  15  *    07-Jan-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
  16  *        Added support for quoted arguments (type "test file.dat").
  17  *        Cleaned up.
  18  *
  19  *    19-Jan-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
  20  *        Unicode and redirection ready!
  21  */
  22
  23 #include "config.h"
  24
  25 #ifdef INCLUDE_CMD_TYPE
  26
  27 #include <windows.h>
  28 #include <tchar.h>
  29 #include <string.h>
  30
  31 #include "cmd.h"
  32
  33
  34 INT cmd_type (LPTSTR cmd, LPTSTR param)
  35 {
  36         TCHAR  szBuffer[256];
  37         HANDLE hFile;
  38         DWORD  dwBytesRead;
  39         DWORD  dwBytesWritten;
  40         BOOL   bResult;
  41         INT    args;
  42         LPTSTR *arg;
  43
  44         if (!_tcsncmp (param, _T("/?"), 2))
  45         {
  46                 ConOutPuts (_T("Displays the contents of text files.\n\n"
  47                                            "TYPE [drive:][path]filename"));
  48                 return 0;
  49         }
  50
  51         if (!*param)
  52         {
  53                 error_req_param_missing ();
  54                 return 1;
  55         }
  56
  57         arg = split (param, &args);
  58
  59         if (args > 1)
  60         {
  61                 error_too_many_parameters (_T("\b \b"));
  62                 freep (arg);
  63                 return 1;
  64         }
  65
  66         hFile = CreateFile (arg[0], GENERIC_READ, FILE_SHARE_READ,
  67                                                 NULL, OPEN_EXISTING,
  68                                                 FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN,
  69                                                 NULL);
  70
  71         if (hFile == INVALID_HANDLE_VALUE)
  72         {
  73                 error_sfile_not_found (param);
  74                 freep (arg);
  75                 return 1;
  76         }
  77
  78         do
  79         {
  80                 bResult = ReadFile (hFile, szBuffer, sizeof(szBuffer),
  81                                                         &dwBytesRead, NULL);
  82                 if (dwBytesRead)
  83                         WriteFile (GetStdHandle (STD_OUTPUT_HANDLE), szBuffer, dwBytesRead,
  84                                            &dwBytesWritten, NULL);
  85         }
  86         while (bResult && dwBytesRead > 0);
  87
  88         CloseHandle (hFile);
  89         freep (arg);
  90
  91         return 0;
  92 }
  93
  94 #endif