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reactos/rosapps/cmd/cmd.c
Phillip Susi 34fca92d6d Share read access to files opened for redirection 
svn path=/trunk/; revision=2296
2001-10-14 18:30:28 +00:00

1166 lines
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/* $Id: cmd.c,v 1.28 2001/10/14 18:30:28 phreak Exp $
*
* CMD.C - command-line interface.
*
*
* History:
*
* 17 Jun 1994 (Tim Norman)
* started.
*
* 08 Aug 1995 (Matt Rains)
* I have cleaned up the source code. changes now bring this source
* into guidelines for recommended programming practice.
*
* A added the the standard FreeDOS GNU licence test to the
* initialize() function.
*
* Started to replace puts() with printf(). this will help
* standardize output. please follow my lead.
*
* I have added some constants to help making changes easier.
*
* 15 Dec 1995 (Tim Norman)
* major rewrite of the code to make it more efficient and add
* redirection support (finally!)
*
* 06 Jan 1996 (Tim Norman)
* finished adding redirection support! Changed to use our own
* exec code (MUCH thanks to Svante Frey!!)
*
* 29 Jan 1996 (Tim Norman)
* added support for CHDIR, RMDIR, MKDIR, and ERASE, as per
* suggestion of Steffan Kaiser
*
* changed "file not found" error message to "bad command or
* filename" thanks to Dustin Norman for noticing that confusing
* message!
*
* changed the format to call internal commands (again) so that if
* they want to split their commands, they can do it themselves
* (none of the internal functions so far need that much power, anyway)
*
* 27 Aug 1996 (Tim Norman)
* added in support for Oliver Mueller's ALIAS command
*
* 14 Jun 1997 (Steffan Kaiser)
* added ctrl-break handling and error level
*
* 16 Jun 1998 (Rob Lake)
* Runs command.com if /P is specified in command line. Command.com
* also stays permanent. If /C is in the command line, starts the
* program next in the line.
*
* 21 Jun 1998 (Rob Lake)
* Fixed up /C so that arguments for the program
*
* 08-Jul-1998 (John P. Price)
* Now sets COMSPEC environment variable
* misc clean up and optimization
* added date and time commands
* changed to using spawnl instead of exec. exec does not copy the
* environment to the child process!
*
* 14 Jul 1998 (Hans B Pufal)
* Reorganised source to be more efficient and to more closely
* follow MS-DOS conventions. (eg %..% environment variable
* replacement works form command line as well as batch file.
*
* New organisation also properly support nested batch files.
*
* New command table structure is half way towards providing a
* system in which COMMAND will find out what internal commands
* are loaded
*
* 24 Jul 1998 (Hans B Pufal) [HBP_003]
* Fixed return value when called with /C option
*
* 27 Jul 1998 John P. Price
* added config.h include
*
* 28 Jul 1998 John P. Price
* added showcmds function to show commands and options available
*
* 07-Aug-1998 (John P Price <linux-guru@gcfl.net>)
* Fixed carrage return output to better match MSDOS with echo
* on or off. (marked with "JPP 19980708")
*
* 07-Dec-1998 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
* First ReactOS release.
* Extended length of commandline buffers to 512.
*
* 13-Dec-1998 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
* Added COMSPEC environment variable.
* Added "/t" support (color) on cmd command line.
*
* 07-Jan-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
* Added help text ("cmd /?").
*
* 25-Jan-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
* Unicode and redirection safe!
* Fixed redirections and piping.
* Piping is based on temporary files, but basic support
* for anonymous pipes already exists.
*
* 27-Jan-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
* Replaced spawnl() by CreateProcess().
*
* 22-Oct-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
* Added break handler.
*
* 15-Dec-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
* Fixed current directory
*
* 28-Dec-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
* Restore window title after program/batch execution
*
* 03-Feb-2001 (Eric Kohl <ekohl@rz-online.de>)
* Workaround because argc[0] is NULL under ReactOS
*
* 23-Feb-2001 (Carl Nettelblad <cnettel@hem.passagen.se>)
* %envvar% replacement conflicted with for.
*/
#include "config.h"
#include <windows.h>
#include <tchar.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include <stdio.h>
#include "cmd.h"
#include "batch.h"
BOOL bExit = FALSE; /* indicates EXIT was typed */
BOOL bCanExit = TRUE; /* indicates if this shell is exitable */
BOOL bCtrlBreak = FALSE; /* Ctrl-Break or Ctrl-C hit */
BOOL bIgnoreEcho = FALSE; /* Ignore 'newline' before 'cls' */
INT nErrorLevel = 0; /* Errorlevel of last launched external program */
BOOL bChildProcessRunning = FALSE;
DWORD dwChildProcessId = 0;
OSVERSIONINFO osvi;
HANDLE hIn;
HANDLE hOut;
#ifdef INCLUDE_CMD_COLOR
WORD wColor; /* current color */
WORD wDefColor; /* default color */
#endif
/*
* is character a delimeter when used on first word?
*
*/
static BOOL IsDelimiter (TCHAR c)
{
return (c == _T('/') || c == _T('=') || c == _T('\0') || _istspace (c));
}
/*
* This command (in first) was not found in the command table
*
* first - first word on command line
* rest - rest of command line
*/
static VOID
Execute (LPTSTR first, LPTSTR rest)
{
TCHAR szFullName[MAX_PATH];
#ifndef __REACTOS__
TCHAR szWindowTitle[MAX_PATH];
#endif
DWORD dwExitCode = 0;
#ifdef _DEBUG
DebugPrintf ("Execute: \'%s\' \'%s\'\n", first, rest);
#endif
/* check for a drive change */
if ((_istalpha (first[0])) && (!_tcscmp (first + 1, _T(":"))))
{
BOOL working = TRUE;
if (!SetCurrentDirectory(first))
/* Guess they changed disc or something, handle that gracefully and get to root */
{
TCHAR str[4];
str[0]=first[0];
str[1]=':';
str[2]='\\';
str[3]=0;
working = SetCurrentDirectory(str);
}
if (!working) ConErrPuts (INVALIDDRIVE);
return;
}
/* get the PATH environment variable and parse it */
/* search the PATH environment variable for the binary */
if (!SearchForExecutable (first, szFullName))
{
error_bad_command ();
return;
}
#ifndef __REACTOS__
GetConsoleTitle (szWindowTitle, MAX_PATH);
#endif
/* check if this is a .BAT or .CMD file */
if (!_tcsicmp (_tcsrchr (szFullName, _T('.')), _T(".bat")) ||
!_tcsicmp (_tcsrchr (szFullName, _T('.')), _T(".cmd")))
{
#ifdef _DEBUG
DebugPrintf ("[BATCH: %s %s]\n", szFullName, rest);
#endif
Batch (szFullName, first, rest);
}
else
{
/* exec the program */
TCHAR szFullCmdLine [CMDLINE_LENGTH];
PROCESS_INFORMATION prci;
STARTUPINFO stui;
#ifdef _DEBUG
DebugPrintf ("[EXEC: %s %s]\n", szFullName, rest);
#endif
/* build command line for CreateProcess() */
_tcscpy (szFullCmdLine, first);
_tcscat (szFullCmdLine, _T(" "));
_tcscat (szFullCmdLine, rest);
/* fill startup info */
memset (&stui, 0, sizeof (STARTUPINFO));
stui.cb = sizeof (STARTUPINFO);
stui.dwFlags = STARTF_USESHOWWINDOW;
stui.wShowWindow = SW_SHOWDEFAULT;
// return console to standard mode
SetConsoleMode( GetStdHandle( STD_INPUT_HANDLE ),
ENABLE_LINE_INPUT | ENABLE_PROCESSED_INPUT | ENABLE_ECHO_INPUT );
if (CreateProcess (szFullName,
szFullCmdLine,
NULL,
NULL,
FALSE,
CREATE_NEW_PROCESS_GROUP,
NULL,
NULL,
&stui,
&prci))
{
/* FIXME: Protect this with critical section */
bChildProcessRunning = TRUE;
dwChildProcessId = prci.dwProcessId;
WaitForSingleObject (prci.hProcess, INFINITE);
/* FIXME: Protect this with critical section */
bChildProcessRunning = TRUE;
GetExitCodeProcess (prci.hProcess, &dwExitCode);
nErrorLevel = (INT)dwExitCode;
CloseHandle (prci.hThread);
CloseHandle (prci.hProcess);
}
else
{
ErrorMessage (GetLastError (),
"Error executing CreateProcess()!!\n");
}
// restore console mode
SetConsoleMode( GetStdHandle( STD_INPUT_HANDLE ),
ENABLE_PROCESSED_INPUT );
}
#ifndef __REACTOS__
SetConsoleTitle (szWindowTitle);
#endif
}
/*
* look through the internal commands and determine whether or not this
* command is one of them. If it is, call the command. If not, call
* execute to run it as an external program.
*
* line - the command line of the program to run
*
*/
static VOID
DoCommand (LPTSTR line)
{
TCHAR com[MAX_PATH]; /* the first word in the command */
LPTSTR cp = com;
LPTSTR cstart;
LPTSTR rest = line; /* pointer to the rest of the command line */
INT cl;
LPCOMMAND cmdptr;
#ifdef _DEBUG
DebugPrintf ("DoCommand: (\'%s\')\n", line);
#endif /* DEBUG */
/* Skip over initial white space */
while (isspace (*rest))
rest++;
cstart = rest;
/* Anything to do ? */
if (*rest)
{
/* Copy over 1st word as lower case */
while (!IsDelimiter (*rest))
*cp++ = _totlower (*rest++);
/* Terminate first word */
*cp = _T('\0');
/* Skip over whitespace to rest of line */
while (_istspace (*rest))
rest++;
/* Scan internal command table */
for (cmdptr = cmds;; cmdptr++)
{
/* If end of table execute ext cmd */
if (cmdptr->name == NULL)
{
Execute (com, rest);
break;
}
if (!_tcscmp (com, cmdptr->name))
{
cmdptr->func (com, rest);
break;
}
/* The following code handles the case of commands like CD which
* are recognised even when the command name and parameter are
* not space separated.
*
* e.g dir..
* cd\freda
*/
/* Get length of command name */
cl = _tcslen (cmdptr->name);
if ((cmdptr->flags & CMD_SPECIAL) &&
(!_tcsncmp (cmdptr->name, com, cl)) &&
(_tcschr (_T("\\.-"), *(com + cl))))
{
/* OK its one of the specials...*/
/* Terminate first word properly */
com[cl] = _T('\0');
/* Call with new rest */
cmdptr->func (com, cstart + cl);
break;
}
}
}
}
/*
* process the command line and execute the appropriate functions
* full input/output redirection and piping are supported
*/
VOID ParseCommandLine (LPTSTR cmd)
{
TCHAR cmdline[CMDLINE_LENGTH];
LPTSTR s;
#ifdef FEATURE_REDIRECTION
TCHAR in[CMDLINE_LENGTH] = "";
TCHAR out[CMDLINE_LENGTH] = "";
TCHAR err[CMDLINE_LENGTH] = "";
TCHAR szTempPath[MAX_PATH] = _T(".\\");
TCHAR szFileName[2][MAX_PATH] = {"", ""};
HANDLE hFile[2] = {INVALID_HANDLE_VALUE, INVALID_HANDLE_VALUE};
LPTSTR t = NULL;
INT num = 0;
INT nRedirFlags = 0;
HANDLE hOldConIn;
HANDLE hOldConOut;
HANDLE hOldConErr;
#endif /* FEATURE_REDIRECTION */
_tcscpy (cmdline, cmd);
s = &cmdline[0];
#ifdef _DEBUG
DebugPrintf ("ParseCommandLine: (\'%s\')\n", s);
#endif /* DEBUG */
#ifdef FEATURE_ALIASES
/* expand all aliases */
ExpandAlias (s, CMDLINE_LENGTH);
#endif /* FEATURE_ALIAS */
#ifdef FEATURE_REDIRECTION
/* find the temp path to store temporary files */
GetTempPath (MAX_PATH, szTempPath);
if (szTempPath[_tcslen (szTempPath) - 1] != _T('\\'))
_tcscat (szTempPath, _T("\\"));
/* get the redirections from the command line */
num = GetRedirection (s, in, out, err, &nRedirFlags);
/* more efficient, but do we really need to do this? */
for (t = in; _istspace (*t); t++)
;
_tcscpy (in, t);
for (t = out; _istspace (*t); t++)
;
_tcscpy (out, t);
for (t = err; _istspace (*t); t++)
;
_tcscpy (err, t);
/* Set up the initial conditions ... */
/* preserve STDIN, STDOUT and STDERR handles */
hOldConIn = GetStdHandle (STD_INPUT_HANDLE);
hOldConOut = GetStdHandle (STD_OUTPUT_HANDLE);
hOldConErr = GetStdHandle (STD_ERROR_HANDLE);
/* redirect STDIN */
if (in[0])
{
HANDLE hFile;
hFile = CreateFile (in, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE)
{
ConErrPrintf ("Can't redirect input from file %s\n", in);
return;
}
if (!SetStdHandle (STD_INPUT_HANDLE, hFile))
{
ConErrPrintf ("Can't redirect input from file %s\n", in);
return;
}
#ifdef _DEBUG
DebugPrintf (_T("Input redirected from: %s\n"), in);
#endif
}
/* Now do all but the last pipe command */
*szFileName[0] = '\0';
hFile[0] = INVALID_HANDLE_VALUE;
while (num-- > 1)
{
/* Create unique temporary file name */
GetTempFileName (szTempPath, "CMD", 0, szFileName[1]);
/* Set current stdout to temporary file */
hFile[1] = CreateFile (szFileName[1], GENERIC_WRITE, 0, NULL,
TRUNCATE_EXISTING, FILE_ATTRIBUTE_TEMPORARY, NULL);
SetStdHandle (STD_OUTPUT_HANDLE, hFile[1]);
DoCommand (s);
/* close stdout file */
SetStdHandle (STD_OUTPUT_HANDLE, hOldConOut);
if ((hFile[1] != INVALID_HANDLE_VALUE) && (hFile[1] != hOldConOut))
{
CloseHandle (hFile[1]);
hFile[1] = INVALID_HANDLE_VALUE;
}
/* close old stdin file */
SetStdHandle (STD_INPUT_HANDLE, hOldConIn);
if ((hFile[0] != INVALID_HANDLE_VALUE) && (hFile[0] != hOldConIn))
{
/* delete old stdin file, if it is a real file */
CloseHandle (hFile[0]);
hFile[0] = INVALID_HANDLE_VALUE;
DeleteFile (szFileName[0]);
*szFileName[0] = _T('\0');
}
/* copy stdout file name to stdin file name */
_tcscpy (szFileName[0], szFileName[1]);
*szFileName[1] = _T('\0');
/* open new stdin file */
hFile[0] = CreateFile (szFileName[0], GENERIC_READ, 0, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_TEMPORARY, NULL);
SetStdHandle (STD_INPUT_HANDLE, hFile[0]);
s = s + _tcslen (s) + 1;
}
/* Now set up the end conditions... */
/* redirect STDOUT */
if (out[0])
{
/* Final output to here */
HANDLE hFile;
hFile = CreateFile (out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
(nRedirFlags & OUTPUT_APPEND) ? OPEN_ALWAYS : CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE)
{
ConErrPrintf ("Can't redirect to file %s\n", out);
return;
}
if (!SetStdHandle (STD_OUTPUT_HANDLE, hFile))
{
ConErrPrintf ("Can't redirect to file %s\n", out);
return;
}
if (nRedirFlags & OUTPUT_APPEND)
{
LONG lHighPos = 0;
if (GetFileType (hFile) == FILE_TYPE_DISK)
SetFilePointer (hFile, 0, &lHighPos, FILE_END);
}
#ifdef _DEBUG
DebugPrintf (_T("Output redirected to: %s\n"), out);
#endif
}
else if (hOldConOut != INVALID_HANDLE_VALUE)
{
/* Restore original stdout */
HANDLE hOut = GetStdHandle (STD_OUTPUT_HANDLE);
SetStdHandle (STD_OUTPUT_HANDLE, hOldConOut);
if (hOldConOut != hOut)
CloseHandle (hOut);
hOldConOut = INVALID_HANDLE_VALUE;
}
/* redirect STDERR */
if (err[0])
{
/* Final output to here */
HANDLE hFile;
if (!_tcscmp (err, out))
{
#ifdef _DEBUG
DebugPrintf (_T("Stdout and stderr will use the same file!!\n"));
#endif
DuplicateHandle (GetCurrentProcess (),
GetStdHandle (STD_OUTPUT_HANDLE),
GetCurrentProcess (),
&hFile, 0, TRUE, DUPLICATE_SAME_ACCESS);
}
else
{
hFile = CreateFile (err,
GENERIC_WRITE,
0,
NULL,
(nRedirFlags & ERROR_APPEND) ? OPEN_ALWAYS : CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL);
if (hFile == INVALID_HANDLE_VALUE)
{
ConErrPrintf ("Can't redirect to file %s\n", err);
return;
}
}
if (!SetStdHandle (STD_ERROR_HANDLE, hFile))
{
ConErrPrintf ("Can't redirect to file %s\n", err);
return;
}
if (nRedirFlags & ERROR_APPEND)
{
LONG lHighPos = 0;
if (GetFileType (hFile) == FILE_TYPE_DISK)
SetFilePointer (hFile, 0, &lHighPos, FILE_END);
}
#ifdef _DEBUG
DebugPrintf (_T("Error redirected to: %s\n"), err);
#endif
}
else if (hOldConErr != INVALID_HANDLE_VALUE)
{
/* Restore original stderr */
HANDLE hErr = GetStdHandle (STD_ERROR_HANDLE);
SetStdHandle (STD_ERROR_HANDLE, hOldConErr);
if (hOldConErr != hErr)
CloseHandle (hErr);
hOldConErr = INVALID_HANDLE_VALUE;
}
#endif
/* process final command */
DoCommand (s);
#ifdef FEATURE_REDIRECTION
/* close old stdin file */
#if 0 /* buggy implementation */
SetStdHandle (STD_INPUT_HANDLE, hOldConIn);
if ((hFile[0] != INVALID_HANDLE_VALUE) &&
(hFile[0] != hOldConIn))
{
/* delete old stdin file, if it is a real file */
CloseHandle (hFile[0]);
hFile[0] = INVALID_HANDLE_VALUE;
DeleteFile (szFileName[0]);
*szFileName[0] = _T('\0');
}
/* Restore original STDIN */
if (hOldConIn != INVALID_HANDLE_VALUE)
{
HANDLE hIn = GetStdHandle (STD_INPUT_HANDLE);
SetStdHandle (STD_INPUT_HANDLE, hOldConIn);
if (hOldConIn != hIn)
CloseHandle (hIn);
hOldConIn = INVALID_HANDLE_VALUE;
}
else
{
#ifdef _DEBUG
DebugPrintf (_T("Can't restore STDIN! Is invalid!!\n"), out);
#endif
}
#endif /* buggy implementation */
if (hOldConIn != INVALID_HANDLE_VALUE)
{
HANDLE hIn = GetStdHandle (STD_INPUT_HANDLE);
SetStdHandle (STD_INPUT_HANDLE, hOldConIn);
if (hIn == INVALID_HANDLE_VALUE)
{
#ifdef _DEBUG
DebugPrintf (_T("Previous STDIN is invalid!!\n"));
#endif
}
else
{
if (GetFileType (hIn) == FILE_TYPE_DISK)
{
if (hFile[0] == hIn)
{
CloseHandle (hFile[0]);
hFile[0] = INVALID_HANDLE_VALUE;
DeleteFile (szFileName[0]);
*szFileName[0] = _T('\0');
}
else
{
#ifdef _DEBUG
DebugPrintf (_T("hFile[0] and hIn dont match!!!\n"));
#endif
}
}
}
}
/* Restore original STDOUT */
if (hOldConOut != INVALID_HANDLE_VALUE)
{
HANDLE hOut = GetStdHandle (STD_OUTPUT_HANDLE);
SetStdHandle (STD_OUTPUT_HANDLE, hOldConOut);
if (hOldConOut != hOut)
CloseHandle (hOut);
hOldConOut = INVALID_HANDLE_VALUE;
}
/* Restore original STDERR */
if (hOldConErr != INVALID_HANDLE_VALUE)
{
HANDLE hErr = GetStdHandle (STD_ERROR_HANDLE);
SetStdHandle (STD_ERROR_HANDLE, hOldConErr);
if (hOldConErr != hErr)
CloseHandle (hErr);
hOldConErr = INVALID_HANDLE_VALUE;
}
#endif /* FEATURE_REDIRECTION */
}
/*
* do the prompt/input/process loop
*
*/
static INT
ProcessInput (BOOL bFlag)
{
TCHAR commandline[CMDLINE_LENGTH];
TCHAR readline[CMDLINE_LENGTH];
LPTSTR tp = NULL;
LPTSTR ip;
LPTSTR cp;
BOOL bEchoThisLine;
do
{
/* if no batch input then... */
if (!(ip = ReadBatchLine (&bEchoThisLine)))
{
if (bFlag)
return 0;
ReadCommand (readline, CMDLINE_LENGTH);
ip = readline;
bEchoThisLine = FALSE;
}
cp = commandline;
while (*ip)
{
if (*ip == _T('%'))
{
switch (*++ip)
{
case _T('%'):
*cp++ = *ip++;
break;
case _T('0'):
case _T('1'):
case _T('2'):
case _T('3'):
case _T('4'):
case _T('5'):
case _T('6'):
case _T('7'):
case _T('8'):
case _T('9'):
if ((tp = FindArg (*ip - _T('0'))))
{
cp = stpcpy (cp, tp);
ip++;
}
else
*cp++ = _T('%');
break;
case _T('?'):
cp += _stprintf (cp, _T("%u"), nErrorLevel);
ip++;
break;
default:
if ((tp == _tcschr(ip, _T('%'))) &&
(tp <= _tcschr(ip, _T(' '))-1))
{
char evar[512];
*tp = _T('\0');
/* FIXME: This is just a quick hack!! */
/* Do a proper memory allocation!! */
if (GetEnvironmentVariable (ip, evar, 512))
cp = stpcpy (cp, evar);
ip = tp + 1;
}
else
{
*cp++ = _T('%');
}
break;
}
continue;
}
if (_istcntrl (*ip))
*ip = _T(' ');
*cp++ = *ip++;
}
*cp = _T('\0');
/* strip trailing spaces */
while ((--cp >= commandline) && _istspace (*cp));
*(cp + 1) = _T('\0');
/* JPP 19980807 */
/* Echo batch file line */
if (bEchoThisLine)
{
PrintPrompt ();
ConOutPuts (commandline);
}
if (*commandline)
{
ParseCommandLine (commandline);
if (bEcho && !bIgnoreEcho)
ConOutChar ('\n');
bIgnoreEcho = FALSE;
}
}
while (!bCanExit || !bExit);
return 0;
}
/*
* control-break handler.
*/
BOOL BreakHandler (DWORD dwCtrlType)
{
if ((dwCtrlType != CTRL_C_EVENT) &&
(dwCtrlType != CTRL_BREAK_EVENT))
return FALSE;
if (bChildProcessRunning == TRUE)
{
GenerateConsoleCtrlEvent (CTRL_C_EVENT,
dwChildProcessId);
return TRUE;
}
/* FIXME: Handle batch files */
/* FIXME: Print "^C" */
return TRUE;
}
VOID AddBreakHandler (VOID)
{
#ifndef __REACTOS__
SetConsoleCtrlHandler ((PHANDLER_ROUTINE)&BreakHandler,
TRUE);
#endif
}
VOID RemoveBreakHandler (VOID)
{
#ifndef __REACTOS__
SetConsoleCtrlHandler (NULL, FALSE);
#endif
}
/*
* show commands and options that are available.
*
*/
static VOID
ShowCommands (VOID)
{
/* print command list */
ConOutPrintf (_T("\nInternal commands available:\n"));
PrintCommandList ();
/* print feature list */
ConOutPuts ("\nFeatures available:");
#ifdef FEATURE_ALIASES
ConOutPuts (" [aliases]");
#endif
#ifdef FEATURE_HISTORY
ConOutPuts (" [history]");
#endif
#ifdef FEATURE_UNIX_FILENAME_COMPLETION
ConOutPuts (" [unix filename completion]");
#endif
#ifdef FEATURE_DIRECTORY_STACK
ConOutPuts (" [directory stack]");
#endif
#ifdef FEATURE_REDIRECTION
ConOutPuts (" [redirections and piping]");
#endif
ConOutChar ('\n');
}
/*
* set up global initializations and process parameters
*
* argc - number of parameters to command.com
* argv - command-line parameters
*
*/
static VOID
Initialize (int argc, char *argv[])
{
TCHAR commandline[CMDLINE_LENGTH];
INT i;
#ifdef _DEBUG
INT x;
DebugPrintf ("[command args:\n");
for (x = 0; x < argc; x++)
{
DebugPrintf ("%d. %s\n", x, argv[x]);
}
DebugPrintf ("]\n");
#endif
/* get version information */
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx (&osvi);
InitLocale ();
/* get default input and output console handles */
hOut = GetStdHandle (STD_OUTPUT_HANDLE);
hIn = GetStdHandle (STD_INPUT_HANDLE);
if (argc >= 2 && !_tcsncmp (argv[1], _T("/?"), 2))
{
ConOutPuts (_T("Starts a new instance of the ReactOS command line interpreter.\n"
"\n"
"CMD [/[C|K] command][/P][/Q][/T:bf]\n"
"\n"
" /C command Runs the specified command and terminates.\n"
" /K command Runs the specified command and remains.\n"
" /P CMD becomes permanent and runs autoexec.bat\n"
" (cannot be terminated).\n"
" /T:bf Sets the background/foreground color (see COLOR command)."));
ExitProcess (0);
}
SetConsoleMode (hIn, ENABLE_PROCESSED_INPUT);
#ifdef INCLUDE_CMD_CHDIR
InitLastPath ();
#endif
#ifdef FATURE_ALIASES
InitializeAlias ();
#endif
if (argc >= 2)
{
for (i = 1; i < argc; i++)
{
if (!_tcsicmp (argv[i], _T("/p")))
{
if (!IsValidFileName (_T("\\autoexec.bat")))
{
#ifdef INCLUDE_CMD_DATE
cmd_date ("", "");
#endif
#ifdef INCLUDE_CMD_TIME
cmd_time ("", "");
#endif
}
else
{
ParseCommandLine (_T("\\autoexec.bat"));
}
bCanExit = FALSE;
}
else if (!_tcsicmp (argv[i], _T("/c")))
{
/* This just runs a program and exits */
++i;
if (argv[i])
{
_tcscpy (commandline, argv[i]);
while (argv[++i])
{
_tcscat (commandline, " ");
_tcscat (commandline, argv[i]);
}
ParseCommandLine(commandline);
ExitProcess (ProcessInput (TRUE));
}
else
{
ExitProcess (0);
}
}
else if (!_tcsicmp (argv[i], _T("/k")))
{
/* This just runs a program and remains */
++i;
if (argv[i])
{
_tcscpy (commandline, argv[i]);
while (argv[++i])
{
_tcscat (commandline, " ");
_tcscat (commandline, argv[i]);
}
ParseCommandLine(commandline);
}
}
#ifdef INCLUDE_CMD_COLOR
else if (!_tcsnicmp (argv[i], _T("/t:"), 3))
{
/* process /t (color) argument */
wDefColor = (WORD)strtoul (&argv[i][3], NULL, 16);
wColor = wDefColor;
SetScreenColor (wColor, TRUE);
}
#endif
}
}
ShortVersion ();
ShowCommands ();
/* run cmdstart.bat */
if (IsValidFileName (_T("cmdstart.bat")))
{
ParseCommandLine (_T("cmdstart.bat"));
}
else if (IsValidFileName (_T("\\cmdstart.bat")))
{
ParseCommandLine (_T("\\cmdstart.bat"));
}
#ifndef __REACTOS__
else
{
/* try to run cmdstart.bat from install dir */
LPTSTR p;
_tcscpy (commandline, argv[0]);
p = _tcsrchr (commandline, _T('\\')) + 1;
_tcscpy (p, _T("cmdstart.bat"));
if (IsValidFileName (_T("commandline")))
{
ConErrPrintf ("Running %s...\n", commandline);
ParseCommandLine (commandline);
}
}
#endif
#ifdef FEATURE_DIR_STACK
/* initialize directory stack */
InitDirectoryStack ();
#endif
#ifdef FEATURE_HISTORY
/*initialize history*/
InitHistory();
#endif
/* Set COMSPEC environment variable */
#ifndef __REACTOS__
if (argv)
SetEnvironmentVariable (_T("COMSPEC"), argv[0]);
#endif
/* add ctrl break handler */
AddBreakHandler ();
}
static VOID Cleanup (int argc, char *argv[])
{
/* run cmdexit.bat */
if (IsValidFileName (_T("cmdexit.bat")))
{
ConErrPrintf ("Running cmdexit.bat...\n");
ParseCommandLine (_T("cmdexit.bat"));
}
else if (IsValidFileName (_T("\\cmdexit.bat")))
{
ConErrPrintf ("Running \\cmdexit.bat...\n");
ParseCommandLine (_T("\\cmdexit.bat"));
}
#ifndef __REACTOS__
else
{
/* try to run cmdexit.bat from install dir */
TCHAR commandline[CMDLINE_LENGTH];
LPTSTR p;
_tcscpy (commandline, argv[0]);
p = _tcsrchr (commandline, _T('\\')) + 1;
_tcscpy (p, _T("cmdexit.bat"));
if (IsValidFileName (_T("commandline")))
{
ConErrPrintf ("Running %s...\n", commandline);
ParseCommandLine (commandline);
}
}
#endif
#ifdef FEATURE_ALIASES
DestroyAlias ();
#endif
#ifdef FEATURE_DIECTORY_STACK
/* destroy directory stack */
DestroyDirectoryStack ();
#endif
#ifdef INCLUDE_CMD_CHDIR
FreeLastPath ();
#endif
#ifdef FEATURE_HISTORY
CleanHistory();
#endif
/* remove ctrl break handler */
RemoveBreakHandler ();
SetConsoleMode( GetStdHandle( STD_INPUT_HANDLE ),
ENABLE_LINE_INPUT | ENABLE_PROCESSED_INPUT | ENABLE_ECHO_INPUT );
}
/*
* main function
*/
int main (int argc, char *argv[])
{
INT nExitCode;
CONSOLE_SCREEN_BUFFER_INFO Info;
AllocConsole ();
SetFileApisToOEM ();
if( GetConsoleScreenBufferInfo( GetStdHandle( STD_OUTPUT_HANDLE ), &Info ) == FALSE )
printf( "GetConsoleScreenBufferInfo: Error: %ld\n", GetLastError() );
wColor = Info.wAttributes;
wDefColor = wColor;
/* check switches on command-line */
Initialize (argc, argv);
/* call prompt routine */
nExitCode = ProcessInput (FALSE);
/* do the cleanup */
Cleanup (argc, argv);
FreeConsole ();
return nExitCode;
}
/* EOF */
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