reactos/base/shell/cmd/chcp.c

   1 /*
   2  *  CHCP.C - chcp internal command.
   3  *
   4  *
   5  *  History:
   6  *
   7  *    23-Dec-1998 (Eric Kohl)
   8  *        Started.
   9  *
  10  *    02-Apr-2005 (Magnus Olsen <magnus@greatlord.com>)
  11  *        Remove all hardcoded strings in En.rc
  12  */
  13
  14 #include "precomp.h"
  15
  16 #ifdef INCLUDE_CMD_CHCP
  17
  18 INT CommandChcp(LPTSTR param)
  19 {
  20     LPTSTR *arg;
  21     INT    args;
  22     UINT uNewCodePage;
  23
  24     /* Print help */
  25     if (!_tcsncmp(param, _T("/?"), 2))
  26     {
  27         ConOutResPaging(TRUE,STRING_CHCP_HELP);
  28         return 0;
  29     }
  30
  31     nErrorLevel = 0;
  32
  33     /* Get parameters */
  34     arg = split(param, &args, FALSE, FALSE);
  35
  36     if (args == 0)
  37     {
  38         /* Display the active code page number */
  39         ConOutResPrintf(STRING_CHCP_ERROR1, OutputCodePage);
  40         freep(arg);
  41         return 0;
  42     }
  43
  44     if (args >= 2)
  45     {
  46         /* Too many parameters */
  47         ConErrResPrintf(STRING_ERROR_INVALID_PARAM_FORMAT, param);
  48         freep(arg);
  49         nErrorLevel = 1;
  50         return 1;
  51     }
  52
  53     uNewCodePage = (UINT)_ttoi(arg[0]);
  54
  55     if (uNewCodePage == 0)
  56     {
  57         ConErrResPrintf(STRING_ERROR_INVALID_PARAM_FORMAT, arg[0]);
  58         freep(arg);
  59         nErrorLevel = 1;
  60         return 1;
  61     }
  62
  63     freep(arg);
  64
  65     // TODO: In case of failure of SetConsoleCP or SetConsoleOutputCP,
  66     // restore the old code page!
  67
  68     /*
  69      * Try changing the console input codepage. If it works then also change
  70      * the console output codepage, and refresh our local codepage cache.
  71      */
  72     if (!SetConsoleCP(uNewCodePage))
  73     {
  74         ConErrResPuts(STRING_CHCP_ERROR4);
  75     }
  76     else
  77     {
  78         SetConsoleOutputCP(uNewCodePage);
  79
  80         /* Update our local codepage cache */
  81         InputCodePage  = GetConsoleCP();
  82         OutputCodePage = GetConsoleOutputCP();
  83
  84         InitLocale();
  85
  86         /* Display the active code page number */
  87         ConOutResPrintf(STRING_CHCP_ERROR1, OutputCodePage);
  88     }
  89
  90     return 0;
  91 }
  92
  93 #endif /* INCLUDE_CMD_CHCP */