--- /dev/null
+/*
+ * DATE.C - date internal command.
+ *
+ *
+ * History:
+ *
+ * 08 Jul 1998 (John P. Price)
+ * started.
+ *
+ * 20 Jul 1998 (John P. Price)
+ * corrected number of days for December from 30 to 31.
+ * (Thanx to Steffen Kaiser for bug report)
+ *
+ * 27-Jul-1998 (John P Price <linux-guru@gcfl.net>)
+ * added config.h include
+ *
+ * 29-Jul-1998 (Rob Lake)
+ * fixed stand-alone mode.
+ * Added Pacific C compatible dos_getdate functions
+ *
+ * 09-Jan-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
+ * Added locale support
+ *
+ * 23-Jan-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
+ * Unicode and redirection safe!
+ *
+ * 04-Feb-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
+ * Fixed date input bug.
+ */
+
+#include "config.h"
+
+#ifdef INCLUDE_CMD_DATE
+
+#include <windows.h>
+#include <tchar.h>
+#include <string.h>
+#include <ctype.h>
+
+#include "cmd.h"
+
+
+static WORD awMonths[2][13] =
+{
+ {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
+ {0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}
+};
+
+
+static VOID
+PrintDateString (VOID)
+{
+ switch (nDateFormat)
+ {
+ case 0: /* mmddyy */
+ default:
+ ConOutPrintf (_T("\nEnter new date (mm%cdd%cyyyy): "),
+ cDateSeparator, cDateSeparator);
+ break;
+
+ case 1: /* ddmmyy */
+ ConOutPrintf (_T("\nEnter new date (dd%cmm%cyyyy): "),
+ cDateSeparator, cDateSeparator);
+ break;
+
+ case 2: /* yymmdd */
+ ConOutPrintf (_T("\nEnter new date (yyyy%cmm%cdd): "),
+ cDateSeparator, cDateSeparator);
+ break;
+ }
+}
+
+
+static BOOL
+ReadNumber (LPTSTR *s, LPWORD lpwValue)
+{
+ if (_istdigit (**s))
+ {
+ while (_istdigit (**s))
+ {
+ *lpwValue = *lpwValue * 10 + **s - _T('0');
+ (*s)++;
+ }
+ return TRUE;
+ }
+ return FALSE;
+}
+
+
+static BOOL
+ReadSeparator (LPTSTR *s)
+{
+ if (**s == _T('/') || **s == _T('-') || **s == cDateSeparator)
+ {
+ (*s)++;
+ return TRUE;
+ }
+ return FALSE;
+}
+
+
+static BOOL
+ParseDate (LPTSTR s)
+{
+ SYSTEMTIME d;
+ unsigned char leap;
+ LPTSTR p = s;
+
+ if (!*s)
+ return TRUE;
+
+ GetLocalTime (&d);
+
+ d.wYear = 0;
+ d.wDay = 0;
+ d.wMonth = 0;
+
+ switch (nDateFormat)
+ {
+ case 0: /* mmddyy */
+ default:
+ if (!ReadNumber (&p, &d.wMonth))
+ return FALSE;
+ if (!ReadSeparator (&p))
+ return FALSE;
+ if (!ReadNumber (&p, &d.wDay))
+ return FALSE;
+ if (!ReadSeparator (&p))
+ return FALSE;
+ if (!ReadNumber (&p, &d.wYear))
+ return FALSE;
+ break;
+
+ case 1: /* ddmmyy */
+ if (!ReadNumber (&p, &d.wDay))
+ return FALSE;
+ if (!ReadSeparator (&p))
+ return FALSE;
+ if (!ReadNumber (&p, &d.wMonth))
+ return FALSE;
+ if (!ReadSeparator (&p))
+ return FALSE;
+ if (!ReadNumber (&p, &d.wYear))
+ return FALSE;
+ break;
+
+ case 2: /* yymmdd */
+ if (!ReadNumber (&p, &d.wYear))
+ return FALSE;
+ if (!ReadSeparator (&p))
+ return FALSE;
+ if (!ReadNumber (&p, &d.wMonth))
+ return FALSE;
+ if (!ReadSeparator (&p))
+ return FALSE;
+ if (!ReadNumber (&p, &d.wDay))
+ return FALSE;
+ break;
+ }
+
+ /* if only entered two digits: */
+ /* assume 2000's if value less than 80 */
+ /* assume 1900's if value greater or equal 80 */
+ if (d.wYear <= 99)
+ {
+ if (d.wYear >= 80)
+ d.wYear = 1900 + d.wYear;
+ else
+ d.wYear = 2000 + d.wYear;
+ }
+
+ leap = (!(d.wYear % 4) && (d.wYear % 100)) || !(d.wYear % 400);
+
+ if ((d.wMonth >= 1 && d.wMonth <= 12) &&
+ (d.wDay >= 1 && d.wDay <= awMonths[leap][d.wMonth]) &&
+ (d.wYear >= 1980 && d.wYear <= 2099))
+ {
+ SetLocalTime (&d);
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+
+INT cmd_date (LPTSTR cmd, LPTSTR param)
+{
+ LPTSTR *arg;
+ INT argc;
+ INT i;
+ BOOL bPrompt = TRUE;
+ INT nDateString = -1;
+
+ if (!_tcsncmp (param, _T("/?"), 2))
+ {
+ ConOutPuts (_T("Displays or sets the date.\n\n"
+ "DATE [/T][date]\n\n"
+ " /T display only\n\n"
+ "Type DATE without parameters to display the current date setting and\n"
+ "a prompt for a new one. Press ENTER to keep the same date."));
+ return 0;
+ }
+
+ /* build parameter array */
+ arg = split (param, &argc, FALSE);
+
+ /* check for options */
+ for (i = 0; i < argc; i++)
+ {
+ if (_tcsicmp (arg[i], _T("/t")) == 0)
+ bPrompt = FALSE;
+ if ((*arg[i] != _T('/')) && (nDateString == -1))
+ nDateString = i;
+ }
+
+ if (nDateString == -1)
+ PrintDate ();
+
+ if (!bPrompt)
+ {
+ freep (arg);
+ return 0;
+ }
+
+ if (nDateString == -1)
+ {
+ while (TRUE) /* forever loop */
+ {
+ TCHAR s[40];
+
+ PrintDateString ();
+ ConInString (s, 40);
+#ifdef _DEBUG
+ DebugPrintf ("\'%s\'\n", s);
+#endif
+ while (*s && s[_tcslen (s) - 1] < ' ')
+ s[_tcslen (s) - 1] = '\0';
+ if (ParseDate (s))
+ {
+ freep (arg);
+ return 0;
+ }
+ ConErrPuts ("Invalid date.");
+ }
+ }
+ else
+ {
+ if (ParseDate (arg[nDateString]))
+ {
+ freep (arg);
+ return 0;
+ }
+ ConErrPuts ("Invalid date.");
+ }
+
+ freep (arg);
+
+ return 0;
+}
+#endif
+
git://git.jankratochvil.net / reactos.git / blobdiff