reactos/rosapps/cmd/time.c

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/*
* TIME.C - time internal command.
*
*
* History:
*
* 07/08/1998 (John P. Price)
* started.
*
* 27-Jul-1998 (John P Price <linux-guru@gcfl.net>)
* added config.h include
*
* 09-Jan-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
* Added locale support.
*
* 19-Jan-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
* Unicode and redirection safe!
* Added "/t" option.
*
* 04-Feb-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
* Fixed time input bug.
*/
#include "config.h"
#ifdef INCLUDE_CMD_TIME
#include <windows.h>
#include <tchar.h>
#include <string.h>
#include <ctype.h>
#include "cmd.h"
static BOOL ParseTime (LPTSTR s)
{
SYSTEMTIME t;
LPTSTR p = s;
if (!*s)
return TRUE;
GetLocalTime (&t);
t.wHour = 0;
t.wMinute = 0;
t.wSecond = 0;
t.wMilliseconds = 0;
// first get hour
if (_istdigit(*p))
{
while (_istdigit(*p))
{
t.wHour = t.wHour * 10 + *p - _T('0');
p++;
}
}
else
return FALSE;
// get time separator
if (*p != cTimeSeparator)
return FALSE;
p++;
// now get minutes
if (_istdigit(*p))
{
while (_istdigit(*p))
{
t.wMinute = t.wMinute * 10 + *p - _T('0');
p++;
}
}
else
return FALSE;
// get time separator
if (*p != cTimeSeparator)
return FALSE;
p++;
// now get seconds
if (_istdigit(*p))
{
while (_istdigit(*p))
{
t.wSecond = t.wSecond * 10 + *p - _T('0');
p++;
}
}
else
return FALSE;
// get decimal separator
if (*p == cDecimalSeparator)
{
p++;
// now get hundreths
if (_istdigit(*p))
{
while (_istdigit(*p))
{
// t.wMilliseconds = t.wMilliseconds * 10 + *p - _T('0');
p++;
}
// t.wMilliseconds *= 10;
}
}
/* special case: 12 hour format */
if (nTimeFormat == 0)
{
if (_totupper(*s) == _T('P'))
{
t.wHour += 12;
}
if ((_totupper(*s) == _T('A')) && (t.wHour == 12))
{
t.wHour = 0;
}
}
if (t.wHour > 23 || t.wMinute > 60 || t.wSecond > 60 || t.wMilliseconds > 999)
return FALSE;
SetLocalTime (&t);
return TRUE;
}
INT cmd_time (LPTSTR cmd, LPTSTR param)
{
LPTSTR *arg;
INT argc;
INT i;
BOOL bPrompt = TRUE;
INT nTimeString = -1;
if (!_tcsncmp (param, _T("/?"), 2))
{
ConOutPuts (_T("Displays or sets the system time.\n"
"\n"
"TIME [/T][time]\n"
"\n"
" /T display only\n"
"\n"
"Type TIME with no parameters to display the current time setting and a prompt\n"
"for a new one. Press ENTER to keep the same time."));
return 0;
}
/* build parameter array */
arg = split (param, &argc);
/* check for options */
for (i = 0; i < argc; i++)
{
if (_tcsicmp (arg[i], _T("/t")) == 0)
bPrompt = FALSE;
if ((*arg[i] != _T('/')) && (nTimeString == -1))
nTimeString = i;
}
if (nTimeString == -1)
PrintTime ();
if (!bPrompt)
{
freep (arg);
return 0;
}
while (1)
{
if (nTimeString == -1)
{
TCHAR s[40];
ConOutPrintf (_T("Enter new time: "));
ConInString (s, 40);
#ifdef _DEBUG
DebugPrintf ("\'%s\'\n", s);
#endif
while (*s && s[_tcslen (s) - 1] < _T(' '))
s[_tcslen(s) - 1] = _T('\0');
if (ParseTime (s))
{
freep (arg);
return 0;
}
}
else
{
if (ParseTime (arg[nTimeString]))
{
freep (arg);
return 0;
}
/* force input the next time around. */
nTimeString = -1;
}
ConErrPuts (_T("Invalid time."));
}
freep (arg);
return 0;
}
#endif