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reactos/reactos/base/shell/cmd/cmd.c
Marc Piulachs e20421e167 - Remove hard-coded reference to cmdstart.bat and load it from registry (Software\Microsoft\Command Processor\Autorun) 
- Show a simple version information when called without command line parameters like the ms's cmd.exe does.

svn path=/trunk/; revision=31413
2007-12-23 13:27:00 +00:00

1914 lines
44 KiB
C
Raw Blame History

/*
* 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)
* First ReactOS release.
* Extended length of commandline buffers to 512.
*
* 13-Dec-1998 (Eric Kohl)
* Added COMSPEC environment variable.
* Added "/t" support (color) on cmd command line.
*
* 07-Jan-1999 (Eric Kohl)
* Added help text ("cmd /?").
*
* 25-Jan-1999 (Eric Kohl)
* 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)
* Replaced spawnl() by CreateProcess().
*
* 22-Oct-1999 (Eric Kohl)
* Added break handler.
*
* 15-Dec-1999 (Eric Kohl)
* Fixed current directory
*
* 28-Dec-1999 (Eric Kohl)
* Restore window title after program/batch execution
*
* 03-Feb-2001 (Eric Kohl)
* Workaround because argc[0] is NULL under ReactOS
*
* 23-Feb-2001 (Carl Nettelblad <cnettel@hem.passagen.se>)
* %envvar% replacement conflicted with for.
*
* 30-Apr-2004 (Filip Navara <xnavara@volny.cz>)
* Make MakeSureDirectoryPathExistsEx unicode safe.
*
* 28-Mai-2004
* Removed MakeSureDirectoryPathExistsEx.
* Use the current directory if GetTempPath fails.
*
* 12-Jul-2004 (Jens Collin <jens.collin@lakhei.com>)
* Added ShellExecute call when all else fails to be able to "launch" any file.
*
* 02-Apr-2005 (Magnus Olsen <magnus@greatlord.com>)
* Remove all hardcode string to En.rc
*
* 06-May-2005 (Klemens Friedl <frik85@gmail.com>)
* Add 'help' command (list all commands plus description)
*
* 06-jul-2005 (Magnus Olsen <magnus@greatlord.com>)
* translate '%errorlevel%' to the internal value.
* Add proper memmory alloc ProcessInput, the error
* handling for memmory handling need to be improve
*/
#include <precomp.h>
#ifndef NT_SUCCESS
#define NT_SUCCESS(StatCode) ((NTSTATUS)(StatCode) >= 0)
#endif
typedef NTSTATUS (WINAPI *NtQueryInformationProcessProc)(HANDLE, PROCESSINFOCLASS,
PVOID, ULONG, PULONG);
typedef NTSTATUS (WINAPI *NtReadVirtualMemoryProc)(HANDLE, PVOID, PVOID, ULONG, PULONG);
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;
HANDLE hConsole;
HANDLE CMD_ModuleHandle;
HMODULE NtDllModule;
static NtQueryInformationProcessProc NtQueryInformationProcessPtr = NULL;
static NtReadVirtualMemoryProc NtReadVirtualMemoryPtr = NULL;
#ifdef INCLUDE_CMD_COLOR
WORD wColor; /* current color */
WORD wDefColor; /* default color */
#endif
/*
* convert
*
* insert commas into a number
*/
INT
ConvertULargeInteger (ULARGE_INTEGER num, LPTSTR des, INT len, BOOL bPutSeperator)
{
TCHAR temp[32];
INT c = 0;
INT n = 0;
if (len <= 1)
return 0;
if (num.QuadPart == 0)
{
des[0] = _T('0');
des[1] = _T('\0');
n = 1;
}
else
{
temp[31] = 0;
while (num.QuadPart > 0)
{
if ((((c + 1) % (nNumberGroups + 1)) == 0) && (bPutSeperator))
temp[30 - c++] = cThousandSeparator;
temp[30 - c++] = (TCHAR)(num.QuadPart % 10) + _T('0');
num.QuadPart /= 10;
}
if (c>len)
c=len;
for (n = 0; n <= c; n++)
des[n] = temp[31 - c + n];
}
return n;
}
/*
* is character a delimeter when used on first word?
*
*/
static BOOL IsDelimiter (TCHAR c)
{
return (c == _T('/') || c == _T('=') || c == _T('\0') || _istspace (c));
}
/*
* Is a process a console process?
*/
static BOOL IsConsoleProcess(HANDLE Process)
{
NTSTATUS Status;
PROCESS_BASIC_INFORMATION Info;
PEB ProcessPeb;
ULONG BytesRead;
if (NULL == NtQueryInformationProcessPtr || NULL == NtReadVirtualMemoryPtr)
{
return TRUE;
}
Status = NtQueryInformationProcessPtr (
Process, ProcessBasicInformation,
&Info, sizeof(PROCESS_BASIC_INFORMATION), NULL);
if (! NT_SUCCESS(Status))
{
#ifdef _DEBUG
DebugPrintf (_T("NtQueryInformationProcess failed with status %08x\n"), Status);
#endif
return TRUE;
}
Status = NtReadVirtualMemoryPtr (
Process, Info.PebBaseAddress, &ProcessPeb,
sizeof(PEB), &BytesRead);
if (! NT_SUCCESS(Status) || sizeof(PEB) != BytesRead)
{
#ifdef _DEBUG
DebugPrintf (_T("Couldn't read virt mem status %08x bytes read %lu\n"), Status, BytesRead);
#endif
return TRUE;
}
return IMAGE_SUBSYSTEM_WINDOWS_CUI == ProcessPeb.ImageSubSystem;
}
#ifdef _UNICODE
#define SHELLEXECUTETEXT "ShellExecuteW"
#else
#define SHELLEXECUTETEXT "ShellExecuteA"
#endif
typedef HINSTANCE (WINAPI *MYEX)(
HWND hwnd,
LPCTSTR lpOperation,
LPCTSTR lpFile,
LPCTSTR lpParameters,
LPCTSTR lpDirectory,
INT nShowCmd
);
static BOOL RunFile(LPTSTR filename)
{
HMODULE hShell32;
MYEX hShExt;
HINSTANCE ret;
#ifdef _DEBUG
DebugPrintf (_T("RunFile(%s)\n"), filename);
#endif
hShell32 = LoadLibrary(_T("SHELL32.DLL"));
if (!hShell32)
{
#ifdef _DEBUG
DebugPrintf (_T("RunFile: couldn't load SHELL32.DLL!\n"));
#endif
return FALSE;
}
hShExt = (MYEX)(FARPROC)GetProcAddress(hShell32, SHELLEXECUTETEXT);
if (!hShExt)
{
#ifdef _DEBUG
DebugPrintf (_T("RunFile: couldn't find ShellExecuteA/W in SHELL32.DLL!\n"));
#endif
FreeLibrary(hShell32);
return FALSE;
}
#ifdef _DEBUG
DebugPrintf (_T("RunFile: ShellExecuteA/W is at %x\n"), hShExt);
#endif
ret = (hShExt)(NULL, _T("open"), filename, NULL, NULL, SW_SHOWNORMAL);
#ifdef _DEBUG
DebugPrintf (_T("RunFile: ShellExecuteA/W returned %d\n"), (DWORD)ret);
#endif
FreeLibrary(hShell32);
return (((DWORD)ret) > 32);
}
/*
* This command (in first) was not found in the command table
*
* Full - whole command line
* First - first word on command line
* Rest - rest of command line
*/
static VOID
Execute (LPTSTR Full, LPTSTR First, LPTSTR Rest)
{
TCHAR *szFullName=NULL;
TCHAR *first = NULL;
TCHAR *rest = NULL;
TCHAR *full = NULL;
TCHAR *dot = NULL;
TCHAR szWindowTitle[MAX_PATH];
DWORD dwExitCode = 0;
#ifdef _DEBUG
DebugPrintf (_T("Execute: \'%s\' \'%s\'\n"), first, rest);
#endif
/* we need biger buffer that First, Rest, Full are already
need rewrite some code to use cmd_realloc when it need instead
of add 512bytes extra */
first = cmd_alloc ( (_tcslen(First) + 512) * sizeof(TCHAR));
if (first == NULL)
{
error_out_of_memory();
nErrorLevel = 1;
return ;
}
rest = cmd_alloc ( (_tcslen(Rest) + 512) * sizeof(TCHAR));
if (rest == NULL)
{
cmd_free (first);
error_out_of_memory();
nErrorLevel = 1;
return ;
}
full = cmd_alloc ( (_tcslen(Full) + 512) * sizeof(TCHAR));
if (full == NULL)
{
cmd_free (first);
cmd_free (rest);
error_out_of_memory();
nErrorLevel = 1;
return ;
}
szFullName = cmd_alloc ( (_tcslen(Full) + 512) * sizeof(TCHAR));
if (full == NULL)
{
cmd_free (first);
cmd_free (rest);
cmd_free (full);
error_out_of_memory();
nErrorLevel = 1;
return ;
}
/* Though it was already parsed once, we have a different set of rules
for parsing before we pass to CreateProccess */
if(!_tcschr(Full,_T('\"')))
{
_tcscpy(first,First);
_tcscpy(rest,Rest);
_tcscpy(full,Full);
}
else
{
UINT i = 0;
BOOL bInside = FALSE;
rest[0] = _T('\0');
full[0] = _T('\0');
first[0] = _T('\0');
_tcscpy(first,Full);
/* find the end of the command and start of the args */
for(i = 0; i < _tcslen(first); i++)
{
if(!_tcsncmp(&first[i], _T("\""), 1))
bInside = !bInside;
if(!_tcsncmp(&first[i], _T(" "), 1) && !bInside)
{
_tcscpy(rest,&first[i]);
first[i] = _T('\0');
break;
}
}
i = 0;
/* remove any slashes */
while(i < _tcslen(first))
{
if(first[i] == _T('\"'))
memmove(&first[i],&first[i + 1], _tcslen(&first[i]) * sizeof(TCHAR));
else
i++;
}
/* Drop quotes around it just in case there is a space */
_tcscpy(full,_T("\""));
_tcscat(full,first);
_tcscat(full,_T("\" "));
_tcscat(full,rest);
}
/* 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]=_T(':');
str[2]=_T('\\');
str[3]=0;
working = SetCurrentDirectory(str);
}
if (!working) ConErrResPuts (STRING_FREE_ERROR1);
cmd_free (first);
cmd_free (rest);
cmd_free (full);
cmd_free (szFullName);
nErrorLevel = 1;
return;
}
/* get the PATH environment variable and parse it */
/* search the PATH environment variable for the binary */
if (!SearchForExecutable (first, szFullName))
{
error_bad_command ();
cmd_free (first);
cmd_free (rest);
cmd_free (full);
cmd_free (szFullName);
nErrorLevel = 1;
return;
}
GetConsoleTitle (szWindowTitle, MAX_PATH);
/* check if this is a .BAT or .CMD file */
dot = _tcsrchr (szFullName, _T('.'));
if (dot && (!_tcsicmp (dot, _T(".bat")) || !_tcsicmp (dot, _T(".cmd"))))
{
#ifdef _DEBUG
DebugPrintf (_T("[BATCH: %s %s]\n"), szFullName, rest);
#endif
Batch (szFullName, first, rest);
}
else
{
/* exec the program */
PROCESS_INFORMATION prci;
STARTUPINFO stui;
#ifdef _DEBUG
DebugPrintf (_T("[EXEC: %s %s]\n"), full, rest);
#endif
/* build command line for CreateProcess() */
/* 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,
full,
NULL,
NULL,
TRUE,
0, /* CREATE_NEW_PROCESS_GROUP */
NULL,
NULL,
&stui,
&prci))
{
if (IsConsoleProcess(prci.hProcess))
{
/* FIXME: Protect this with critical section */
bChildProcessRunning = TRUE;
dwChildProcessId = prci.dwProcessId;
WaitForSingleObject (prci.hProcess, INFINITE);
/* FIXME: Protect this with critical section */
bChildProcessRunning = FALSE;
GetExitCodeProcess (prci.hProcess, &dwExitCode);
nErrorLevel = (INT)dwExitCode;
}
else
{
nErrorLevel = 0;
}
CloseHandle (prci.hThread);
CloseHandle (prci.hProcess);
}
else
{
#ifdef _DEBUG
DebugPrintf (_T("[ShellExecute: %s]\n"), full);
#endif
// See if we can run this with ShellExecute() ie myfile.xls
if (!RunFile(full))
{
#ifdef _DEBUG
DebugPrintf (_T("[ShellExecute failed!: %s]\n"), full);
#endif
error_bad_command ();
nErrorLevel = 1;
}
else
{
nErrorLevel = 0;
}
}
// restore console mode
SetConsoleMode (
GetStdHandle( STD_INPUT_HANDLE ),
ENABLE_PROCESSED_INPUT );
}
/* Get code page if it has been change */
InputCodePage= GetConsoleCP();
OutputCodePage = GetConsoleOutputCP();
SetConsoleTitle (szWindowTitle);
cmd_free(first);
cmd_free(rest);
cmd_free(full);
cmd_free (szFullName);
}
/*
* 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
*
*/
VOID
DoCommand (LPTSTR line)
{
TCHAR *com = NULL; /* the first word in the command */
TCHAR *cp = NULL;
LPTSTR cstart;
LPTSTR rest; /* pointer to the rest of the command line */
INT cl;
LPCOMMAND cmdptr;
#ifdef _DEBUG
DebugPrintf (_T("DoCommand: (\'%s\')\n"), line);
#endif /* DEBUG */
com = cmd_alloc( (_tcslen(line) +512)*sizeof(TCHAR) );
if (com == NULL)
{
error_out_of_memory();
return;
}
cp = com;
/* Skip over initial white space */
while (_istspace (*line))
line++;
rest = line;
cstart = rest;
/* Anything to do ? */
if (*rest)
{
if (*rest == _T('"'))
{
/* treat quoted words specially */
rest++;
while(*rest != _T('\0') && *rest != _T('"'))
*cp++ = _totlower (*rest++);
if (*rest == _T('"'))
rest++;
}
else
{
while (!IsDelimiter (*rest))
*cp++ = _totlower (*rest++);
}
/* Terminate first word */
*cp = _T('\0');
/* Do not limit commands to MAX_PATH */
/*
if(_tcslen(com) > MAX_PATH)
{
error_bad_command();
cmd_free(com);
return;
}
*/
/* Skip over whitespace to rest of line, exclude 'echo' command */
if (_tcsicmp (com, _T("echo")))
{
while (_istspace (*rest))
rest++;
}
/* Scan internal command table */
for (cmdptr = cmds;; cmdptr++)
{
/* If end of table execute ext cmd */
if (cmdptr->name == NULL)
{
Execute (line, 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;
}
}
}
cmd_free(com);
}
/*
* process the command line and execute the appropriate functions
* full input/output redirection and piping are supported
*/
VOID ParseCommandLine (LPTSTR cmd)
{
TCHAR szMsg[RC_STRING_MAX_SIZE];
TCHAR cmdline[CMDLINE_LENGTH];
LPTSTR s;
#ifdef FEATURE_REDIRECTION
TCHAR in[CMDLINE_LENGTH] = _T("");
TCHAR out[CMDLINE_LENGTH] = _T("");
TCHAR err[CMDLINE_LENGTH] = _T("");
TCHAR szTempPath[MAX_PATH] = _T(".\\");
TCHAR szFileName[2][MAX_PATH] = {_T(""), _T("")};
HANDLE hFile[2] = {INVALID_HANDLE_VALUE, INVALID_HANDLE_VALUE};
LPTSTR t = NULL;
INT num = 0;
INT nRedirFlags = 0;
INT Length;
UINT Attributes;
BOOL bNewBatch = TRUE;
HANDLE hOldConIn;
HANDLE hOldConOut;
HANDLE hOldConErr;
#endif /* FEATURE_REDIRECTION */
_tcscpy (cmdline, cmd);
s = &cmdline[0];
#ifdef _DEBUG
DebugPrintf (_T("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 */
Length = GetTempPath (MAX_PATH, szTempPath);
if (Length > 0 && Length < MAX_PATH)
{
Attributes = GetFileAttributes(szTempPath);
if (Attributes == 0xffffffff ||
!(Attributes & FILE_ATTRIBUTE_DIRECTORY))
{
Length = 0;
}
}
if (Length == 0 || Length >= MAX_PATH)
{
_tcscpy(szTempPath, _T(".\\"));
}
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);
if(bc && !_tcslen (in) && _tcslen (bc->In))
_tcscpy(in, bc->In);
if(bc && !out[0] && _tcslen(bc->Out))
{
nRedirFlags |= OUTPUT_APPEND;
_tcscpy(out, bc->Out);
}
if(bc && !_tcslen (err) && _tcslen (bc->Err))
{
nRedirFlags |= ERROR_APPEND;
_tcscpy(err, bc->Err);
}
/* 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;
SECURITY_ATTRIBUTES sa = {sizeof(SECURITY_ATTRIBUTES), NULL, TRUE};
/* we need make sure the LastError msg is zero before calling CreateFile */
SetLastError(0);
/* Set up pipe for the standard input handler */
hFile = CreateFile (in, GENERIC_READ, FILE_SHARE_READ, &sa, OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE)
{
LoadString(CMD_ModuleHandle, STRING_CMD_ERROR1, szMsg, RC_STRING_MAX_SIZE);
ConErrPrintf(szMsg, in);
return;
}
if (!SetStdHandle (STD_INPUT_HANDLE, hFile))
{
LoadString(CMD_ModuleHandle, STRING_CMD_ERROR1, szMsg, RC_STRING_MAX_SIZE);
ConErrPrintf(szMsg, in);
return;
}
#ifdef _DEBUG
DebugPrintf (_T("Input redirected from: %s\n"), in);
#endif
}
/* Now do all but the last pipe command */
*szFileName[0] = _T('\0');
hFile[0] = INVALID_HANDLE_VALUE;
while (num-- > 1)
{
SECURITY_ATTRIBUTES sa = {sizeof(SECURITY_ATTRIBUTES), NULL, TRUE};
/* Create unique temporary file name */
GetTempFileName (szTempPath, _T("CMD"), 0, szFileName[1]);
/* we need make sure the LastError msg is zero before calling CreateFile */
SetLastError(0);
/* Set current stdout to temporary file */
hFile[1] = CreateFile (szFileName[1], GENERIC_WRITE, 0, &sa,
TRUNCATE_EXISTING, FILE_ATTRIBUTE_TEMPORARY, NULL);
if (hFile[1] == INVALID_HANDLE_VALUE)
{
LoadString(CMD_ModuleHandle, STRING_CMD_ERROR2, szMsg, RC_STRING_MAX_SIZE);
ConErrPrintf(szMsg);
return;
}
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');
/* we need make sure the LastError msg is zero before calling CreateFile */
SetLastError(0);
/* open new stdin file */
hFile[0] = CreateFile (szFileName[0], GENERIC_READ, 0, &sa,
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;
SECURITY_ATTRIBUTES sa = {sizeof(SECURITY_ATTRIBUTES), NULL, TRUE};
/* we need make sure the LastError msg is zero before calling CreateFile */
SetLastError(0);
hFile = CreateFile (out, GENERIC_WRITE, FILE_SHARE_WRITE | FILE_SHARE_READ | FILE_SHARE_DELETE, &sa,
(nRedirFlags & OUTPUT_APPEND) ? OPEN_ALWAYS : CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL | FILE_FLAG_WRITE_THROUGH, NULL);
if (hFile == INVALID_HANDLE_VALUE)
{
INT size = _tcslen(out)-1;
if (out[size] != _T(':'))
{
LoadString(CMD_ModuleHandle, STRING_CMD_ERROR3, szMsg, RC_STRING_MAX_SIZE);
ConErrPrintf(szMsg, out);
return;
}
out[size]=_T('\0');
hFile = CreateFile (out, GENERIC_WRITE, FILE_SHARE_WRITE | FILE_SHARE_READ | FILE_SHARE_DELETE, &sa,
(nRedirFlags & OUTPUT_APPEND) ? OPEN_ALWAYS : CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL | FILE_FLAG_WRITE_THROUGH, NULL);
if (hFile == INVALID_HANDLE_VALUE)
{
LoadString(CMD_ModuleHandle, STRING_CMD_ERROR3, szMsg, RC_STRING_MAX_SIZE);
ConErrPrintf(szMsg, out);
return;
}
}
if (!SetStdHandle (STD_OUTPUT_HANDLE, hFile))
{
LoadString(CMD_ModuleHandle, STRING_CMD_ERROR3, szMsg, RC_STRING_MAX_SIZE);
ConErrPrintf(szMsg, 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;
SECURITY_ATTRIBUTES sa = {sizeof(SECURITY_ATTRIBUTES), NULL, TRUE};
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,
FILE_SHARE_WRITE | FILE_SHARE_READ | FILE_SHARE_DELETE,
&sa,
(nRedirFlags & ERROR_APPEND) ? OPEN_ALWAYS : CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL | FILE_FLAG_WRITE_THROUGH,
NULL);
if (hFile == INVALID_HANDLE_VALUE)
{
LoadString(CMD_ModuleHandle, STRING_CMD_ERROR3, szMsg, RC_STRING_MAX_SIZE);
ConErrPrintf(szMsg, err);
return;
}
}
if (!SetStdHandle (STD_ERROR_HANDLE, hFile))
{
LoadString(CMD_ModuleHandle, STRING_CMD_ERROR3, szMsg, RC_STRING_MAX_SIZE);
ConErrPrintf(szMsg, 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;
}
if(bc)
bNewBatch = FALSE;
#endif
/* process final command */
DoCommand (s);
#ifdef FEATURE_REDIRECTION
if(bNewBatch && bc)
AddBatchRedirection(in, out, err);
/* 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 */
}
BOOL
GrowIfNecessary_dbg ( UINT needed, LPTSTR* ret, UINT* retlen, const char *file, int line )
{
if ( *ret && needed < *retlen )
return TRUE;
*retlen = needed;
if ( *ret )
cmd_free ( *ret );
#ifdef _DEBUG_MEM
*ret = (LPTSTR)cmd_alloc_dbg ( *retlen * sizeof(TCHAR), file, line );
#else
*ret = (LPTSTR)cmd_alloc ( *retlen * sizeof(TCHAR) );
#endif
if ( !*ret )
SetLastError ( ERROR_OUTOFMEMORY );
return *ret != NULL;
}
#define GrowIfNecessary(x, y, z) GrowIfNecessary_dbg(x, y, z, __FILE__, __LINE__)
LPCTSTR
GetEnvVarOrSpecial ( LPCTSTR varName )
{
static LPTSTR ret = NULL;
static UINT retlen = 0;
UINT size;
size = GetEnvironmentVariable ( varName, ret, retlen );
if ( size > retlen )
{
if ( !GrowIfNecessary ( size, &ret, &retlen ) )
return NULL;
size = GetEnvironmentVariable ( varName, ret, retlen );
}
if ( size )
return ret;
/* env var doesn't exist, look for a "special" one */
/* %CD% */
if (_tcsicmp(varName,_T("cd")) ==0)
{
size = GetCurrentDirectory ( retlen, ret );
if ( size > retlen )
{
if ( !GrowIfNecessary ( size, &ret, &retlen ) )
return NULL;
size = GetCurrentDirectory ( retlen, ret );
}
if ( !size )
return NULL;
return ret;
}
/* %TIME% */
else if (_tcsicmp(varName,_T("time")) ==0)
{
SYSTEMTIME t;
if ( !GrowIfNecessary ( MAX_PATH, &ret, &retlen ) )
return NULL;
GetSystemTime(&t);
_sntprintf ( ret, retlen, _T("%02d%c%02d%c%02d%c%02d"),
t.wHour, cTimeSeparator, t.wMinute, cTimeSeparator,
t.wSecond, cDecimalSeparator, t.wMilliseconds / 10);
return ret;
}
/* %DATE% */
else if (_tcsicmp(varName,_T("date")) ==0)
{
if ( !GrowIfNecessary ( GetDateFormat(LOCALE_USER_DEFAULT, DATE_SHORTDATE, NULL, NULL, NULL, 0), &ret, &retlen ) )
return NULL;
size = GetDateFormat(LOCALE_USER_DEFAULT, DATE_SHORTDATE, NULL, NULL, ret, retlen);
if ( !size )
return NULL;
return ret;
}
/* %RANDOM% */
else if (_tcsicmp(varName,_T("random")) ==0)
{
if ( !GrowIfNecessary ( MAX_PATH, &ret, &retlen ) )
return NULL;
/* Get random number */
_itot(rand(),ret,10);
return ret;
}
/* %CMDCMDLINE% */
else if (_tcsicmp(varName,_T("cmdcmdline")) ==0)
{
return GetCommandLine();
}
/* %CMDEXTVERSION% */
else if (_tcsicmp(varName,_T("cmdextversion")) ==0)
{
if ( !GrowIfNecessary ( MAX_PATH, &ret, &retlen ) )
return NULL;
/* Set version number to 2 */
_itot(2,ret,10);
return ret;
}
/* %ERRORLEVEL% */
else if (_tcsicmp(varName,_T("errorlevel")) ==0)
{
if ( !GrowIfNecessary ( MAX_PATH, &ret, &retlen ) )
return NULL;
_itot(nErrorLevel,ret,10);
return ret;
}
GrowIfNecessary(_tcslen(varName) + 3, &ret, &retlen);
_stprintf(ret,_T("%%%s%%"),varName);
return ret; /* not found - return orginal string */
}
LPCTSTR
GetParsedEnvVar ( LPCTSTR varName, UINT* varNameLen, BOOL ModeSetA )
{
static LPTSTR ret = NULL;
static UINT retlen = 0;
LPTSTR p, tmp;
UINT size;
if ( varNameLen )
*varNameLen = 0;
SetLastError(0);
if ( *varName++ != '%' )
return NULL;
switch ( *varName )
{
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 ((tmp = FindArg (*varName - _T('0'))))
{
if ( varNameLen )
*varNameLen = 2;
if ( !*tmp )
return _T("");
if ( !GrowIfNecessary ( _tcslen(tmp)+1, &ret, &retlen ) )
return NULL;
_tcscpy ( ret, tmp );
return ret;
}
if ( !GrowIfNecessary ( 3, &ret, &retlen ) )
return NULL;
ret[0] = _T('%');
ret[1] = *varName;
ret[2] = 0;
if ( varNameLen )
*varNameLen = 2;
return ret;
case _T('*'):
if(bc == NULL)
{
//
// No batch file to see here, move along
//
if ( !GrowIfNecessary ( 3, &ret, &retlen ) )
return NULL;
ret[0] = _T('%');
ret[1] = _T('*');
ret[2] = 0;
if ( varNameLen )
*varNameLen = 2;
return ret;
}
//
// Copy over the raw params(not including the batch file name
//
if ( !GrowIfNecessary ( _tcslen(bc->raw_params)+1, &ret, &retlen ) )
return NULL;
if ( varNameLen )
*varNameLen = 2;
_tcscpy ( ret, bc->raw_params );
return ret;
case _T('%'):
if ( !GrowIfNecessary ( 2, &ret, &retlen ) )
return NULL;
ret[0] = _T('%');
ret[1] = 0;
if ( varNameLen )
*varNameLen = 2;
return ret;
case _T('?'):
/* TODO FIXME 10 is only max size for 32-bit */
if ( !GrowIfNecessary ( 11, &ret, &retlen ) )
return NULL;
_sntprintf ( ret, retlen, _T("%u"), nErrorLevel);
ret[retlen-1] = 0;
if ( varNameLen )
*varNameLen = 2;
return ret;
}
if ( ModeSetA )
{
/* HACK for set/a */
if ( !GrowIfNecessary ( 2, &ret, &retlen ) )
return NULL;
ret[0] = _T('%');
ret[1] = 0;
if ( varNameLen )
*varNameLen = 1;
return ret;
}
p = _tcschr ( varName, _T('%') );
if ( !p )
{
SetLastError ( ERROR_INVALID_PARAMETER );
return NULL;
}
size = p-varName;
if ( varNameLen )
*varNameLen = size + 2;
p = alloca ( (size+1) * sizeof(TCHAR) );
memmove ( p, varName, size * sizeof(TCHAR) );
p[size] = 0;
varName = p;
return GetEnvVarOrSpecial ( varName );
}
/*
* do the prompt/input/process loop
*
*/
static INT
ProcessInput (BOOL bFlag)
{
TCHAR commandline[CMDLINE_LENGTH];
TCHAR readline[CMDLINE_LENGTH];
LPTSTR ip;
LPTSTR cp;
LPCTSTR tmp;
BOOL bEchoThisLine;
BOOL bModeSetA;
BOOL bIsBatch;
do
{
/* if no batch input then... */
if (!(ip = ReadBatchLine (&bEchoThisLine)))
{
if (bFlag)
return nErrorLevel;
ReadCommand (readline, CMDLINE_LENGTH);
ip = readline;
bEchoThisLine = FALSE;
bIsBatch = FALSE;
}
else
{
bIsBatch = TRUE;
}
/* skip leading blanks */
while ( _istspace(*ip) )
++ip;
cp = commandline;
bModeSetA = FALSE;
while (*ip)
{
if ( *ip == _T('%') )
{
UINT envNameLen;
LPCTSTR envVal = GetParsedEnvVar ( ip, &envNameLen, bModeSetA );
if ( envVal )
{
ip += envNameLen;
cp = _stpcpy ( cp, envVal );
}
}
if (_istcntrl (*ip))
*ip = _T(' ');
*cp++ = *ip++;
/* HACK HACK HACK check whether bModeSetA needs to be toggled */
*cp = 0;
tmp = commandline;
tmp += _tcsspn(tmp,_T(" \t"));
/* first we find and skip and pre-redirections... */
while (( tmp ) &&
( _tcschr(_T("<>"),*tmp)
|| !_tcsncmp(tmp,_T("1>"),2)
|| !_tcsncmp(tmp,_T("2>"),2) ))
{
if ( _istdigit(*tmp) )
tmp += 2;
else
tmp++;
tmp += _tcsspn(tmp,_T(" \t"));
if ( *tmp == _T('\"') )
{
tmp = _tcschr(tmp+1,_T('\"'));
if ( tmp )
++tmp;
}
else
tmp = _tcspbrk(tmp,_T(" \t"));
if ( tmp )
tmp += _tcsspn(tmp,_T(" \t"));
}
/* we should now be pointing to the actual command
* (if there is one yet)*/
if ( tmp )
{
/* if we're currently substituting ( which is default )
* check to see if we've parsed out a set/a. if so, we
* need to disable substitution until we come across a
* redirection */
if ( !bModeSetA )
{
/* look for set /a */
if ( !_tcsnicmp(tmp,_T("set"),3) )
{
tmp += 3;
tmp += _tcsspn(tmp,_T(" \t"));
if ( !_tcsnicmp(tmp,_T("/a"),2) )
bModeSetA = TRUE;
}
}
/* if we're not currently substituting, it means we're
* already inside a set /a. now we need to look for
* a redirection in order to turn redirection back on */
else
{
/* look for redirector of some kind after the command */
while ( (tmp = _tcspbrk ( tmp, _T("^<>|") )) )
{
if ( *tmp == _T('^') )
{
if ( _tcschr(_T("<>|&"), *++tmp ) && *tmp )
++tmp;
}
else
{
bModeSetA = FALSE;
break;
}
}
}
}
}
*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 (!CheckCtrlBreak(BREAK_INPUT) && *commandline)
{
ParseCommandLine (commandline);
if (bEcho && !bIgnoreEcho && (!bIsBatch || bEchoThisLine))
ConOutChar ('\n');
bIgnoreEcho = FALSE;
}
}
while (!bCanExit || !bExit);
return nErrorLevel;
}
/*
* control-break handler.
*/
BOOL WINAPI BreakHandler (DWORD dwCtrlType)
{
DWORD dwWritten;
INPUT_RECORD rec;
static BOOL SelfGenerated = FALSE;
if ((dwCtrlType != CTRL_C_EVENT) &&
(dwCtrlType != CTRL_BREAK_EVENT))
{
return FALSE;
}
else
{
if(SelfGenerated)
{
SelfGenerated = FALSE;
return TRUE;
}
}
if (bChildProcessRunning == TRUE)
{
SelfGenerated = TRUE;
GenerateConsoleCtrlEvent (dwCtrlType, 0);
return TRUE;
}
rec.EventType = KEY_EVENT;
rec.Event.KeyEvent.bKeyDown = TRUE;
rec.Event.KeyEvent.wRepeatCount = 1;
rec.Event.KeyEvent.wVirtualKeyCode = _T('C');
rec.Event.KeyEvent.wVirtualScanCode = _T('C') - 35;
rec.Event.KeyEvent.uChar.AsciiChar = _T('C');
rec.Event.KeyEvent.uChar.UnicodeChar = _T('C');
rec.Event.KeyEvent.dwControlKeyState = RIGHT_CTRL_PRESSED;
WriteConsoleInput(
hIn,
&rec,
1,
&dwWritten);
bCtrlBreak = TRUE;
/* FIXME: Handle batch files */
//ConOutPrintf(_T("^C"));
return TRUE;
}
VOID AddBreakHandler (VOID)
{
SetConsoleCtrlHandler ((PHANDLER_ROUTINE)BreakHandler, TRUE);
}
VOID RemoveBreakHandler (VOID)
{
SetConsoleCtrlHandler ((PHANDLER_ROUTINE)BreakHandler, FALSE);
}
/*
* show commands and options that are available.
*
*/
#if 0
static VOID
ShowCommands (VOID)
{
/* print command list */
ConOutResPuts(STRING_CMD_HELP1);
PrintCommandList();
/* print feature list */
ConOutResPuts(STRING_CMD_HELP2);
#ifdef FEATURE_ALIASES
ConOutResPuts(STRING_CMD_HELP3);
#endif
#ifdef FEATURE_HISTORY
ConOutResPuts(STRING_CMD_HELP4);
#endif
#ifdef FEATURE_UNIX_FILENAME_COMPLETION
ConOutResPuts(STRING_CMD_HELP5);
#endif
#ifdef FEATURE_DIRECTORY_STACK
ConOutResPuts(STRING_CMD_HELP6);
#endif
#ifdef FEATURE_REDIRECTION
ConOutResPuts(STRING_CMD_HELP7);
#endif
ConOutChar(_T('\n'));
}
#endif
static VOID
ExecuteAutoRunFile (VOID)
{
TCHAR autorun[MAX_PATH];
DWORD len = MAX_PATH;
HKEY hkey;
if( RegOpenKeyEx(HKEY_LOCAL_MACHINE,
_T("SOFTWARE\\Microsoft\\Command Processor"),
0,
KEY_READ,
&hkey ) == ERROR_SUCCESS)
{
if(RegQueryValueEx(hkey,
_T("AutoRun"),
0,
0,
(LPBYTE)autorun,
&len) == ERROR_SUCCESS)
{
ParseCommandLine (autorun);
}
}
RegCloseKey(hkey);
}
/*
* set up global initializations and process parameters
*
* argc - number of parameters to command.com
* argv - command-line parameters
*
*/
static VOID
Initialize (int argc, const TCHAR* argv[])
{
TCHAR commandline[CMDLINE_LENGTH];
TCHAR ModuleName[_MAX_PATH + 1];
INT i;
TCHAR lpBuffer[2];
//INT len;
//TCHAR *ptr, *cmdLine;
/* get version information */
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx (&osvi);
/* Some people like to run ReactOS cmd.exe on Win98, it helps in the
* build process. So don't link implicitly against ntdll.dll, load it
* dynamically instead */
if (osvi.dwPlatformId == VER_PLATFORM_WIN32_NT)
{
/* ntdll is always present on NT */
NtDllModule = GetModuleHandle(TEXT("ntdll.dll"));
}
else
{
/* not all 9x versions have a ntdll.dll, try to load it */
NtDllModule = LoadLibrary(TEXT("ntdll.dll"));
}
if (NtDllModule != NULL)
{
NtQueryInformationProcessPtr = (NtQueryInformationProcessProc)GetProcAddress(NtDllModule, "NtQueryInformationProcess");
NtReadVirtualMemoryPtr = (NtReadVirtualMemoryProc)GetProcAddress(NtDllModule, "NtReadVirtualMemory");
}
#ifdef _DEBUG
DebugPrintf (_T("[command args:\n"));
for (i = 0; i < argc; i++)
{
DebugPrintf (_T("%d. %s\n"), i, argv[i]);
}
DebugPrintf (_T("]\n"));
#endif
InitLocale ();
/* get default input and output console handles */
hOut = GetStdHandle (STD_OUTPUT_HANDLE);
hIn = GetStdHandle (STD_INPUT_HANDLE);
/* Set EnvironmentVariable PROMPT if it does not exists any env value.
for you can change the EnvirommentVariable for prompt before cmd start
this patch are not 100% right, if it does not exists a PROMPT value cmd should use
$P$G as defualt not set EnvirommentVariable PROMPT to $P$G if it does not exists */
if (GetEnvironmentVariable(_T("PROMPT"),lpBuffer, sizeof(lpBuffer) / sizeof(lpBuffer[0])) == 0)
SetEnvironmentVariable (_T("PROMPT"), _T("$P$G"));
if (argc >= 2 && !_tcsncmp (argv[1], _T("/?"), 2))
{
ConOutResPaging(TRUE,STRING_CMD_HELP8);
cmd_exit(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 (!IsExistingFile (_T("\\autoexec.bat")))
{
#ifdef INCLUDE_CMD_DATE
cmd_date (_T(""), _T(""));
#endif
#ifdef INCLUDE_CMD_TIME
cmd_time (_T(""), _T(""));
#endif
}
else
{
ParseCommandLine (_T("\\autoexec.bat"));
}
bCanExit = FALSE;
}
else if (!_tcsicmp (argv[i], _T("/c")))
{
/* This just runs a program and exits */
++i;
if (i < argc)
{
_tcscpy (commandline, argv[i]);
while (++i < argc)
{
_tcscat (commandline, _T(" "));
_tcscat (commandline, argv[i]);
}
ParseCommandLine(commandline);
cmd_exit (ProcessInput (TRUE));
}
else
{
cmd_exit (0);
}
}
else if (!_tcsicmp (argv[i], _T("/k")))
{
/* This just runs a program and remains */
++i;
if (i < argc)
{
_tcscpy (commandline, _T("\""));
_tcscat (commandline, argv[i]);
_tcscat (commandline, _T("\""));
while (++i < argc)
{
_tcscat (commandline, _T(" "));
_tcscat (commandline, argv[i]);
}
ParseCommandLine(commandline);
}
}
#ifdef INCLUDE_CMD_COLOR
else if (!_tcsnicmp (argv[i], _T("/t:"), 3))
{
/* process /t (color) argument */
wDefColor = (WORD)_tcstoul (&argv[i][3], NULL, 16);
wColor = wDefColor;
SetScreenColor (wColor, TRUE);
}
#endif
}
}
else
{
/* Display a simple version string */
ConOutPrintf(_T("ReactOS Operating System [Version %s-%s]\n"),
_T(KERNEL_RELEASE_STR),
_T(KERNEL_VERSION_BUILD_STR));
ConOutPuts (_T("(C) Copyright 1998-2008 ReactOS Team.\n"));
}
ExecuteAutoRunFile ();
#ifdef FEATURE_DIR_STACK
/* initialize directory stack */
InitDirectoryStack ();
#endif
#ifdef FEATURE_HISTORY
/*initialize history*/
InitHistory();
#endif
/* Set COMSPEC environment variable */
if (0 != GetModuleFileName (NULL, ModuleName, _MAX_PATH + 1))
{
ModuleName[_MAX_PATH] = _T('\0');
SetEnvironmentVariable (_T("COMSPEC"), ModuleName);
}
/* add ctrl break handler */
AddBreakHandler ();
}
static VOID Cleanup (int argc, const TCHAR *argv[])
{
/* run cmdexit.bat */
if (IsExistingFile (_T("cmdexit.bat")))
{
ConErrResPuts(STRING_CMD_ERROR5);
ParseCommandLine (_T("cmdexit.bat"));
}
else if (IsExistingFile (_T("\\cmdexit.bat")))
{
ConErrResPuts (STRING_CMD_ERROR5);
ParseCommandLine (_T("\\cmdexit.bat"));
}
#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 );
if (NtDllModule != NULL)
{
FreeLibrary(NtDllModule);
}
}
/*
* main function
*/
int cmd_main (int argc, const TCHAR *argv[])
{
TCHAR startPath[MAX_PATH];
CONSOLE_SCREEN_BUFFER_INFO Info;
INT nExitCode;
GetCurrentDirectory(MAX_PATH,startPath);
_tchdir(startPath);
SetFileApisToOEM();
InputCodePage= 0;
OutputCodePage = 0;
hConsole = CreateFile(_T("CONOUT$"), GENERIC_READ|GENERIC_WRITE,
FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
OPEN_EXISTING, 0, NULL);
if (GetConsoleScreenBufferInfo(hConsole, &Info) == FALSE)
{
ConErrFormatMessage(GetLastError());
return(1);
}
wColor = Info.wAttributes;
wDefColor = wColor;
InputCodePage= GetConsoleCP();
OutputCodePage = GetConsoleOutputCP();
CMD_ModuleHandle = GetModuleHandle(NULL);
/* check switches on command-line */
Initialize(argc, argv);
/* call prompt routine */
nExitCode = ProcessInput(FALSE);
/* do the cleanup */
Cleanup(argc, argv);
cmd_exit(nExitCode);
return(nExitCode);
}
/* EOF */
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