Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2024-06-27 16:31:30 +00:00
Code Issues Packages Projects Releases Wiki Activity
reactos/reactos/base/shell/cmd/cmd.c

1934 lines
45 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; /* Set this to TRUE to prevent a newline, when executing a command */
INT nErrorLevel = 0; /* Errorlevel of last launched external program */
BOOL bChildProcessRunning = FALSE;
BOOL bDelayedExpansion = FALSE;
DWORD dwChildProcessId = 0;
OSVERSIONINFO osvi;
HANDLE hIn;
HANDLE hOut;
HANDLE hConsole;
HANDLE CMD_ModuleHandle;
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];
UINT n, iTarget;
if (len <= 1)
return 0;
if (num.QuadPart == 0)
{
des[0] = _T('0');
des[1] = _T('\0');
return 1;
}
n = 0;
iTarget = nNumberGroups;
if (!nNumberGroups)
bPutSeperator = FALSE;
while (num.QuadPart > 0)
{
if (iTarget == n && bPutSeperator)
{
iTarget += nNumberGroups + 1;
temp[31 - n++] = cThousandSeparator;
}
temp[31 - n++] = (TCHAR)(num.QuadPart % 10) + _T('0');
num.QuadPart /= 10;
}
if (n > len-1)
n = len-1;
memcpy(des, temp + 32 - n, n * sizeof(TCHAR));
des[n] = _T('\0');
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))
{
WARN ("NtQueryInformationProcess failed with status %08x\n", Status);
return TRUE;
}
Status = NtReadVirtualMemoryPtr (
Process, Info.PebBaseAddress, &ProcessPeb,
sizeof(PEB), &BytesRead);
if (! NT_SUCCESS(Status) || sizeof(PEB) != BytesRead)
{
WARN ("Couldn't read virt mem status %08x bytes read %lu\n", Status, BytesRead);
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;
TRACE ("RunFile(%s)\n", debugstr_aw(filename));
hShell32 = LoadLibrary(_T("SHELL32.DLL"));
if (!hShell32)
{
WARN ("RunFile: couldn't load SHELL32.DLL!\n");
return FALSE;
}
hShExt = (MYEX)(FARPROC)GetProcAddress(hShell32, SHELLEXECUTETEXT);
if (!hShExt)
{
WARN ("RunFile: couldn't find ShellExecuteA/W in SHELL32.DLL!\n");
FreeLibrary(hShell32);
return FALSE;
}
TRACE ("RunFile: ShellExecuteA/W is at %x\n", hShExt);
ret = (hShExt)(NULL, _T("open"), filename, NULL, NULL, SW_SHOWNORMAL);
TRACE ("RunFile: ShellExecuteA/W returned 0x%p\n", ret);
FreeLibrary(hShell32);
return (((DWORD_PTR)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 BOOL
Execute (LPTSTR Full, LPTSTR First, LPTSTR Rest, PARSED_COMMAND *Cmd)
{
TCHAR *szFullName=NULL;
TCHAR *first = NULL;
TCHAR *rest = NULL;
TCHAR *full = NULL;
TCHAR *dot = NULL;
TCHAR szWindowTitle[MAX_PATH];
DWORD dwExitCode = 0;
TRACE ("Execute: \'%s\' \'%s\'\n", debugstr_aw(first), debugstr_aw(rest));
/* 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 FALSE;
}
rest = cmd_alloc ( (_tcslen(Rest) + 512) * sizeof(TCHAR));
if (rest == NULL)
{
cmd_free (first);
error_out_of_memory();
nErrorLevel = 1;
return FALSE;
}
full = cmd_alloc ( (_tcslen(Full) + 512) * sizeof(TCHAR));
if (full == NULL)
{
cmd_free (first);
cmd_free (rest);
error_out_of_memory();
nErrorLevel = 1;
return FALSE;
}
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 FALSE;
}
/* 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 working;
}
/* get the PATH environment variable and parse it */
/* search the PATH environment variable for the binary */
if (!SearchForExecutable (first, szFullName))
{
error_bad_command (first);
cmd_free (first);
cmd_free (rest);
cmd_free (full);
cmd_free (szFullName);
nErrorLevel = 1;
return FALSE;
}
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"))))
{
TRACE ("[BATCH: %s %s]\n", debugstr_aw(szFullName), debugstr_aw(rest));
Batch (szFullName, first, rest, Cmd);
}
else
{
/* exec the program */
PROCESS_INFORMATION prci;
STARTUPINFO stui;
TRACE ("[EXEC: %s %s]\n", debugstr_aw(full), debugstr_aw(rest));
/* 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
{
TRACE ("[ShellExecute: %s]\n", debugstr_aw(full));
// See if we can run this with ShellExecute() ie myfile.xls
if (!RunFile(full))
{
TRACE ("[ShellExecute failed!: %s]\n", debugstr_aw(full));
error_bad_command (first);
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);
return nErrorLevel == 0;
}
/*
* 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
*
*/
BOOL
DoCommand (LPTSTR line, PARSED_COMMAND *Cmd)
{
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;
BOOL ret = TRUE;
TRACE ("DoCommand: (\'%s\')\n", debugstr_aw(line));
com = cmd_alloc( (_tcslen(line) +512)*sizeof(TCHAR) );
if (com == NULL)
{
error_out_of_memory();
return FALSE;
}
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)
{
ret = Execute (line, com, rest, Cmd);
break;
}
if (!_tcscmp (com, cmdptr->name))
{
cmdptr->func (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...*/
/* Call with new rest */
cmdptr->func (cstart + cl);
break;
}
}
}
cmd_free(com);
return ret;
}
/*
* process the command line and execute the appropriate functions
* full input/output redirection and piping are supported
*/
VOID ParseCommandLine (LPTSTR cmd)
{
PARSED_COMMAND *Cmd = ParseCommand(cmd);
if (Cmd)
{
ExecuteCommand(Cmd);
FreeCommand(Cmd);
}
}
/* Execute a command without waiting for it to finish. If it's an internal
* command or batch file, we must create a new cmd.exe process to handle it.
* TODO: For now, this just always creates a cmd.exe process.
* This works, but is inefficient for running external programs,
* which could just be run directly. */
static HANDLE
ExecuteAsync(PARSED_COMMAND *Cmd)
{
TCHAR CmdPath[MAX_PATH];
TCHAR CmdParams[CMDLINE_LENGTH], *ParamsEnd;
STARTUPINFO stui;
PROCESS_INFORMATION prci;
/* Get the path to cmd.exe */
GetModuleFileName(NULL, CmdPath, MAX_PATH);
/* Build the parameter string to pass to cmd.exe */
ParamsEnd = _stpcpy(CmdParams, _T("/S/D/C\""));
ParamsEnd = Unparse(Cmd, ParamsEnd, &CmdParams[CMDLINE_LENGTH - 2]);
if (!ParamsEnd)
{
error_out_of_memory();
return NULL;
}
_tcscpy(ParamsEnd, _T("\""));
memset(&stui, 0, sizeof stui);
stui.cb = sizeof(STARTUPINFO);
if (!CreateProcess(CmdPath, CmdParams, NULL, NULL, TRUE, 0,
NULL, NULL, &stui, &prci))
{
ErrorMessage(GetLastError(), NULL);
return NULL;
}
CloseHandle(prci.hThread);
return prci.hProcess;
}
static VOID
ExecutePipeline(PARSED_COMMAND *Cmd)
{
#ifdef FEATURE_REDIRECTION
HANDLE hInput = NULL;
HANDLE hOldConIn = GetStdHandle(STD_INPUT_HANDLE);
HANDLE hOldConOut = GetStdHandle(STD_OUTPUT_HANDLE);
HANDLE hProcess[MAXIMUM_WAIT_OBJECTS];
INT nProcesses = 0;
DWORD dwExitCode;
/* Do all but the last pipe command */
do
{
HANDLE hPipeRead, hPipeWrite;
if (nProcesses > (MAXIMUM_WAIT_OBJECTS - 2))
{
error_too_many_parameters(_T("|"));
goto failed;
}
/* Create the pipe that this process will write into.
* Make the handles non-inheritable initially, because this
* process shouldn't inherit the reading handle. */
if (!CreatePipe(&hPipeRead, &hPipeWrite, NULL, 0))
{
error_no_pipe();
goto failed;
}
/* The writing side of the pipe is STDOUT for this process */
SetHandleInformation(hPipeWrite, HANDLE_FLAG_INHERIT, HANDLE_FLAG_INHERIT);
SetStdHandle(STD_OUTPUT_HANDLE, hPipeWrite);
/* Execute it (error check is done later for easier cleanup) */
hProcess[nProcesses] = ExecuteAsync(Cmd->Subcommands);
CloseHandle(hPipeWrite);
if (hInput)
CloseHandle(hInput);
/* The reading side of the pipe will be STDIN for the next process */
SetHandleInformation(hPipeRead, HANDLE_FLAG_INHERIT, HANDLE_FLAG_INHERIT);
SetStdHandle(STD_INPUT_HANDLE, hPipeRead);
hInput = hPipeRead;
if (!hProcess[nProcesses])
goto failed;
nProcesses++;
Cmd = Cmd->Subcommands->Next;
} while (Cmd->Type == C_PIPE);
/* The last process uses the original STDOUT */
SetStdHandle(STD_OUTPUT_HANDLE, hOldConOut);
hProcess[nProcesses] = ExecuteAsync(Cmd);
if (!hProcess[nProcesses])
goto failed;
nProcesses++;
CloseHandle(hInput);
SetStdHandle(STD_INPUT_HANDLE, hOldConIn);
/* Wait for all processes to complete */
bChildProcessRunning = TRUE;
WaitForMultipleObjects(nProcesses, hProcess, TRUE, INFINITE);
bChildProcessRunning = FALSE;
/* Use the exit code of the last process in the pipeline */
GetExitCodeProcess(hProcess[nProcesses - 1], &dwExitCode);
nErrorLevel = (INT)dwExitCode;
while (--nProcesses >= 0)
CloseHandle(hProcess[nProcesses]);
return;
failed:
if (hInput)
CloseHandle(hInput);
while (--nProcesses >= 0)
{
TerminateProcess(hProcess[nProcesses], 0);
CloseHandle(hProcess[nProcesses]);
}
SetStdHandle(STD_INPUT_HANDLE, hOldConIn);
SetStdHandle(STD_OUTPUT_HANDLE, hOldConOut);
#endif
}
BOOL
ExecuteCommand(PARSED_COMMAND *Cmd)
{
PARSED_COMMAND *Sub;
LPTSTR ExpandedLine;
BOOL Success = TRUE;
if (!PerformRedirection(Cmd->Redirections))
return FALSE;
switch (Cmd->Type)
{
case C_COMMAND:
ExpandedLine = DoDelayedExpansion(Cmd->Command.CommandLine);
if (!ExpandedLine)
{
Success = FALSE;
break;
}
Success = DoCommand(ExpandedLine, Cmd);
cmd_free(ExpandedLine);
break;
case C_QUIET:
case C_BLOCK:
case C_MULTI:
for (Sub = Cmd->Subcommands; Sub; Sub = Sub->Next)
Success = ExecuteCommand(Sub);
break;
case C_IFFAILURE:
case C_IFSUCCESS:
Sub = Cmd->Subcommands;
Success = ExecuteCommand(Sub);
if (Success == (Cmd->Type - C_IFFAILURE))
{
Sub = Sub->Next;
Success = ExecuteCommand(Sub);
}
break;
case C_PIPE:
ExecutePipeline(Cmd);
break;
case C_IF:
Success = ExecuteIf(Cmd);
break;
case C_FOR:
Success = ExecuteFor(Cmd);
break;
}
UndoRedirection(Cmd->Redirections, NULL);
return Success;
}
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)
{
return GetTimeString();
}
/* %DATE% */
else if (_tcsicmp(varName,_T("date")) ==0)
{
return GetDateString();
}
/* %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;
}
return NULL;
}
/* Handle the %~var syntax */
static LPTSTR
GetEnhancedVar(TCHAR **pFormat, LPTSTR (*GetVar)(TCHAR, BOOL *))
{
static const TCHAR ModifierTable[] = _T("dpnxfsatz");
enum {
M_DRIVE = 1, /* D: drive letter */
M_PATH = 2, /* P: path */
M_NAME = 4, /* N: filename */
M_EXT = 8, /* X: extension */
M_FULL = 16, /* F: full path (drive+path+name+ext) */
M_SHORT = 32, /* S: full path (drive+path+name+ext), use short names */
M_ATTR = 64, /* A: attributes */
M_TIME = 128, /* T: modification time */
M_SIZE = 256, /* Z: file size */
} Modifiers = 0;
TCHAR *Format, *FormatEnd;
LPTSTR Variable;
TCHAR *VarEnd;
BOOL VariableIsParam0;
TCHAR FullPath[MAX_PATH];
TCHAR FixedPath[MAX_PATH], *Filename, *Extension;
HANDLE hFind;
WIN32_FIND_DATA w32fd;
TCHAR *In, *Out;
static TCHAR Result[CMDLINE_LENGTH];
/* There is ambiguity between modifier characters and FOR variables;
* the rule that cmd uses is to pick the longest possible match.
* For example, if there is a %n variable, then out of %~anxnd,
* %~anxn will be substituted rather than just %~an. */
/* First, go through as many modifier characters as possible */
FormatEnd = Format = *pFormat;
while (*FormatEnd && _tcschr(ModifierTable, _totlower(*FormatEnd)))
FormatEnd++;
/* TODO: check for $PATH: syntax */
/* Now backtrack if necessary to get a variable name match */
while (!(Variable = GetVar(*FormatEnd, &VariableIsParam0)))
{
if (FormatEnd == Format)
return NULL;
FormatEnd--;
}
for (; Format < FormatEnd; Format++)
Modifiers |= 1 << (_tcschr(ModifierTable, _totlower(*Format)) - ModifierTable);
*pFormat = FormatEnd + 1;
/* Exclude the leading and trailing quotes */
VarEnd = &Variable[_tcslen(Variable)];
if (*Variable == _T('"'))
{
Variable++;
if (VarEnd > Variable && VarEnd[-1] == _T('"'))
VarEnd--;
}
if ((char *)VarEnd - (char *)Variable >= sizeof Result)
return _T("");
memcpy(Result, Variable, (char *)VarEnd - (char *)Variable);
Result[VarEnd - Variable] = _T('\0');
/* For plain %~var with no modifiers, just return the variable without quotes */
if (Modifiers == 0)
return Result;
if (VariableIsParam0)
{
/* Special case: If the variable is %0 and modifier characters are present,
* use the batch file's path (which includes the .bat/.cmd extension)
* rather than the actual %0 variable (which might not). */
_tcscpy(FullPath, bc->BatchFilePath);
}
else
{
/* Convert the variable, now without quotes, to a full path */
if (!GetFullPathName(Result, MAX_PATH, FullPath, NULL))
return _T("");
}
/* Next step is to change the path to fix letter case (e.g.
* C:\ReAcToS -> C:\ReactOS) and, if requested with the S modifier,
* replace long filenames with short. */
In = FullPath;
Out = FixedPath;
/* Copy drive letter */
*Out++ = *In++;
*Out++ = *In++;
*Out++ = *In++;
/* Loop over each \-separated component in the path */
do {
TCHAR *Next = _tcschr(In, _T('\\'));
if (Next)
*Next++ = _T('\0');
/* Use FindFirstFile to get the correct name */
if (Out + _tcslen(In) + 1 >= &FixedPath[MAX_PATH])
return _T("");
_tcscpy(Out, In);
hFind = FindFirstFile(FixedPath, &w32fd);
/* If it doesn't exist, just leave the name as it was given */
if (hFind != INVALID_HANDLE_VALUE)
{
LPTSTR FixedComponent = w32fd.cFileName;
if (*w32fd.cAlternateFileName &&
((Modifiers & M_SHORT) || !_tcsicmp(In, w32fd.cAlternateFileName)))
{
FixedComponent = w32fd.cAlternateFileName;
}
FindClose(hFind);
if (Out + _tcslen(FixedComponent) + 1 >= &FixedPath[MAX_PATH])
return _T("");
_tcscpy(Out, FixedComponent);
}
Filename = Out;
Out += _tcslen(Out);
*Out++ = _T('\\');
In = Next;
} while (In != NULL);
Out[-1] = _T('\0');
/* Build the result string. Start with attributes, modification time, and
* file size. If the file didn't exist, these fields will all be empty. */
Out = Result;
if (hFind != INVALID_HANDLE_VALUE)
{
if (Modifiers & M_ATTR)
{
static const struct {
TCHAR Character;
WORD Value;
} *Attrib, Table[] = {
{ _T('d'), FILE_ATTRIBUTE_DIRECTORY },
{ _T('r'), FILE_ATTRIBUTE_READONLY },
{ _T('a'), FILE_ATTRIBUTE_ARCHIVE },
{ _T('h'), FILE_ATTRIBUTE_HIDDEN },
{ _T('s'), FILE_ATTRIBUTE_SYSTEM },
{ _T('c'), FILE_ATTRIBUTE_COMPRESSED },
{ _T('o'), FILE_ATTRIBUTE_OFFLINE },
{ _T('t'), FILE_ATTRIBUTE_TEMPORARY },
{ _T('l'), FILE_ATTRIBUTE_REPARSE_POINT },
};
for (Attrib = Table; Attrib != &Table[9]; Attrib++)
{
*Out++ = w32fd.dwFileAttributes & Attrib->Value
? Attrib->Character
: _T('-');
}
*Out++ = _T(' ');
}
if (Modifiers & M_TIME)
{
FILETIME ft;
SYSTEMTIME st;
FileTimeToLocalFileTime(&w32fd.ftLastWriteTime, &ft);
FileTimeToSystemTime(&ft, &st);
Out += FormatDate(Out, &st, TRUE);
*Out++ = _T(' ');
Out += FormatTime(Out, &st);
}
if (Modifiers & M_SIZE)
{
ULARGE_INTEGER Size;
Size.LowPart = w32fd.nFileSizeLow;
Size.HighPart = w32fd.nFileSizeHigh;
Out += _stprintf(Out, _T("%I64u "), Size.QuadPart);
}
}
/* Now add the requested parts of the name.
* With the F or S modifiers, add all parts to form the full path. */
Extension = _tcsrchr(Filename, _T('.'));
if (Modifiers & (M_DRIVE | M_FULL | M_SHORT))
{
*Out++ = FixedPath[0];
*Out++ = FixedPath[1];
}
if (Modifiers & (M_PATH | M_FULL | M_SHORT))
{
memcpy(Out, &FixedPath[2], (char *)Filename - (char *)&FixedPath[2]);
Out += Filename - &FixedPath[2];
}
if (Modifiers & (M_NAME | M_FULL | M_SHORT))
{
while (*Filename && Filename != Extension)
*Out++ = *Filename++;
}
if (Modifiers & (M_EXT | M_FULL | M_SHORT))
{
if (Extension)
Out = _stpcpy(Out, Extension);
}
/* Trim trailing space which otherwise would appear as a
* result of using the A/T/Z modifiers but no others. */
while (Out != &Result[0] && Out[-1] == _T(' '))
Out--;
*Out = _T('\0');
return Result;
}
LPCTSTR
GetBatchVar(TCHAR *varName, UINT *varNameLen)
{
LPCTSTR ret;
TCHAR *varNameEnd;
BOOL dummy;
*varNameLen = 1;
switch ( *varName )
{
case _T('~'):
varNameEnd = varName + 1;
ret = GetEnhancedVar(&varNameEnd, FindArg);
if (!ret)
{
error_syntax(varName);
return NULL;
}
*varNameLen = varNameEnd - varName;
return ret;
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'):
return FindArg(*varName, &dummy);
case _T('*'):
//
// Copy over the raw params(not including the batch file name
//
return bc->raw_params;
case _T('%'):
return _T("%");
}
return NULL;
}
BOOL
SubstituteVars(TCHAR *Src, TCHAR *Dest, TCHAR Delim)
{
#define APPEND(From, Length) { \
if (Dest + (Length) > DestEnd) \
goto too_long; \
memcpy(Dest, From, (Length) * sizeof(TCHAR)); \
Dest += Length; }
#define APPEND1(Char) { \
if (Dest >= DestEnd) \
goto too_long; \
*Dest++ = Char; }
TCHAR *DestEnd = Dest + CMDLINE_LENGTH - 1;
const TCHAR *Var;
int VarLength;
TCHAR *SubstStart;
TCHAR EndChr;
while (*Src)
{
if (*Src != Delim)
{
APPEND1(*Src++)
continue;
}
Src++;
if (bc && Delim == _T('%'))
{
UINT NameLen;
Var = GetBatchVar(Src, &NameLen);
if (Var != NULL)
{
VarLength = _tcslen(Var);
APPEND(Var, VarLength)
Src += NameLen;
continue;
}
}
/* Find the end of the variable name. A colon (:) will usually
* end the name and begin the optional modifier, but not if it
* is immediately followed by the delimiter (%VAR:%). */
SubstStart = Src;
while (*Src != Delim && !(*Src == _T(':') && Src[1] != Delim))
{
if (!*Src)
goto bad_subst;
Src++;
}
EndChr = *Src;
*Src = _T('\0');
Var = GetEnvVarOrSpecial(SubstStart);
*Src++ = EndChr;
if (Var == NULL)
{
/* In a batch file, %NONEXISTENT% "expands" to an empty string */
if (bc)
continue;
goto bad_subst;
}
VarLength = _tcslen(Var);
if (EndChr == Delim)
{
/* %VAR% - use as-is */
APPEND(Var, VarLength)
}
else if (*Src == _T('~'))
{
/* %VAR:~[start][,length]% - substring
* Negative values are offsets from the end */
int Start = _tcstol(Src + 1, &Src, 0);
int End = VarLength;
if (Start < 0)
Start += VarLength;
Start = max(Start, 0);
Start = min(Start, VarLength);
if (*Src == _T(','))
{
End = _tcstol(Src + 1, &Src, 0);
End += (End < 0) ? VarLength : Start;
End = max(End, Start);
End = min(End, VarLength);
}
if (*Src++ != Delim)
goto bad_subst;
APPEND(&Var[Start], End - Start);
}
else
{
/* %VAR:old=new% - replace all occurrences of old with new
* %VAR:*old=new% - replace first occurrence only,
* and remove everything before it */
TCHAR *Old, *New;
DWORD OldLength, NewLength;
BOOL Star = FALSE;
int LastMatch = 0, i = 0;
if (*Src == _T('*'))
{
Star = TRUE;
Src++;
}
/* the string to replace may contain the delimiter */
Src = _tcschr(Old = Src, _T('='));
if (Src == NULL)
goto bad_subst;
OldLength = Src++ - Old;
if (OldLength == 0)
goto bad_subst;
Src = _tcschr(New = Src, Delim);
if (Src == NULL)
goto bad_subst;
NewLength = Src++ - New;
while (i < VarLength)
{
if (_tcsnicmp(&Var[i], Old, OldLength) == 0)
{
if (!Star)
APPEND(&Var[LastMatch], i - LastMatch)
APPEND(New, NewLength)
i += OldLength;
LastMatch = i;
if (Star)
break;
continue;
}
i++;
}
APPEND(&Var[LastMatch], VarLength - LastMatch)
}
continue;
bad_subst:
Src = SubstStart;
if (!bc)
APPEND1(Delim)
}
*Dest = _T('\0');
return TRUE;
too_long:
ConOutResPrintf(STRING_ALIAS_ERROR);
nErrorLevel = 9023;
return FALSE;
#undef APPEND
#undef APPEND1
}
/* Search the list of FOR contexts for a variable */
static LPTSTR FindForVar(TCHAR Var, BOOL *IsParam0)
{
FOR_CONTEXT *Ctx;
*IsParam0 = FALSE;
for (Ctx = fc; Ctx != NULL; Ctx = Ctx->prev)
if ((UINT)(Var - Ctx->firstvar) < Ctx->varcount)
return Ctx->values[Var - Ctx->firstvar];
return NULL;
}
BOOL
SubstituteForVars(TCHAR *Src, TCHAR *Dest)
{
TCHAR *DestEnd = &Dest[CMDLINE_LENGTH - 1];
while (*Src)
{
if (Src[0] == _T('%'))
{
BOOL Dummy;
LPTSTR End = &Src[2];
LPTSTR Value = NULL;
if (Src[1] == _T('~'))
Value = GetEnhancedVar(&End, FindForVar);
if (!Value)
Value = FindForVar(Src[1], &Dummy);
if (Value)
{
if (Dest + _tcslen(Value) > DestEnd)
return FALSE;
Dest = _stpcpy(Dest, Value);
Src = End;
continue;
}
}
/* Not a variable; just copy the character */
if (Dest >= DestEnd)
return FALSE;
*Dest++ = *Src++;
}
*Dest = _T('\0');
return TRUE;
}
LPTSTR
DoDelayedExpansion(LPTSTR Line)
{
TCHAR Buf1[CMDLINE_LENGTH];
TCHAR Buf2[CMDLINE_LENGTH];
/* First, substitute FOR variables */
if (!SubstituteForVars(Line, Buf1))
return NULL;
if (!bDelayedExpansion || !_tcschr(Buf1, _T('!')))
return cmd_dup(Buf1);
/* FIXME: Delayed substitutions actually aren't quite the same as
* immediate substitutions. In particular, it's possible to escape
* the exclamation point using ^. */
if (!SubstituteVars(Buf1, Buf2, _T('!')))
return NULL;
return cmd_dup(Buf2);
}
/*
* do the prompt/input/process loop
*
*/
BOOL
ReadLine (TCHAR *commandline, BOOL bMore)
{
TCHAR readline[CMDLINE_LENGTH];
LPTSTR ip;
/* if no batch input then... */
if (bc == NULL)
{
if (bMore)
{
ConOutPrintf(_T("More? "));
}
else
{
/* JPP 19980807 - if echo off, don't print prompt */
if (bEcho)
PrintPrompt();
}
ReadCommand (readline, CMDLINE_LENGTH - 1);
if (CheckCtrlBreak(BREAK_INPUT))
{
ConOutPuts(_T("\n"));
return FALSE;
}
ip = readline;
}
else
{
ip = ReadBatchLine();
if (!ip)
return FALSE;
}
return SubstituteVars(ip, commandline, _T('%'));
}
static INT
ProcessInput()
{
PARSED_COMMAND *Cmd;
do
{
Cmd = ParseCommand(NULL);
if (!Cmd)
continue;
ExecuteCommand(Cmd);
if (bEcho && !bIgnoreEcho)
ConOutChar ('\n');
FreeCommand(Cmd);
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);
}
/* Get the command that comes after a /C or /K switch */
static VOID
GetCmdLineCommand(TCHAR *commandline, TCHAR *ptr, BOOL AlwaysStrip)
{
TCHAR *LastQuote;
while (_istspace(*ptr))
ptr++;
/* Remove leading quote, find final quote */
if (*ptr == _T('"') &&
(LastQuote = _tcsrchr(++ptr, _T('"'))) != NULL)
{
TCHAR *Space;
/* Under certain circumstances, all quotes are preserved.
* CMD /? documents these conditions as follows:
* 1. No /S switch
* 2. Exactly two quotes
* 3. No "special characters" between the quotes
* (CMD /? says &<>()@^| but parentheses did not
* trigger this rule when I tested them.)
* 4. Whitespace exists between the quotes
* 5. Enclosed string is an executable filename
*/
*LastQuote = _T('\0');
for (Space = ptr + 1; Space < LastQuote; Space++)
{
if (_istspace(*Space)) /* Rule 4 */
{
if (!AlwaysStrip && /* Rule 1 */
!_tcspbrk(ptr, _T("\"&<>@^|")) && /* Rules 2, 3 */
SearchForExecutable(ptr, commandline)) /* Rule 5 */
{
/* All conditions met: preserve both the quotes */
*LastQuote = _T('"');
_tcscpy(commandline, ptr - 1);
return;
}
break;
}
}
/* The conditions were not met: remove both the
* leading quote and the last quote */
_tcscpy(commandline, ptr);
_tcscpy(&commandline[LastQuote - ptr], LastQuote + 1);
return;
}
/* No quotes; just copy */
_tcscpy(commandline, ptr);
}
/*
* set up global initializations and process parameters
*/
static VOID
Initialize()
{
HMODULE NtDllModule;
TCHAR commandline[CMDLINE_LENGTH];
TCHAR ModuleName[_MAX_PATH + 1];
TCHAR lpBuffer[2];
//INT len;
TCHAR *ptr, *cmdLine;
BOOL AlwaysStrip = FALSE;
BOOL ShowVersion = TRUE;
/* 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 */
NtDllModule = GetModuleHandle(TEXT("ntdll.dll"));
if (NtDllModule != NULL)
{
NtQueryInformationProcessPtr = (NtQueryInformationProcessProc)GetProcAddress(NtDllModule, "NtQueryInformationProcess");
NtReadVirtualMemoryPtr = (NtReadVirtualMemoryProc)GetProcAddress(NtDllModule, "NtReadVirtualMemory");
}
cmdLine = GetCommandLine();
TRACE ("[command args: %s]\n", debugstr_aw(cmdLine));
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"));
SetConsoleMode (hIn, ENABLE_PROCESSED_INPUT);
#ifdef INCLUDE_CMD_CHDIR
InitLastPath ();
#endif
for (ptr = cmdLine; *ptr; ptr++)
{
if (*ptr == _T('/'))
{
if (ptr[1] == _T('?'))
{
ConOutResPaging(TRUE,STRING_CMD_HELP8);
cmd_exit(0);
}
else if (_totlower(ptr[1]) == _T('p'))
{
if (!IsExistingFile (_T("\\autoexec.bat")))
{
#ifdef INCLUDE_CMD_DATE
cmd_date (_T(""));
#endif
#ifdef INCLUDE_CMD_TIME
cmd_time (_T(""));
#endif
}
else
{
ParseCommandLine (_T("\\autoexec.bat"));
}
bCanExit = FALSE;
}
else if (_totlower(ptr[1]) == _T('c'))
{
/* This just runs a program and exits */
GetCmdLineCommand(commandline, &ptr[2], AlwaysStrip);
ParseCommandLine(commandline);
cmd_exit(nErrorLevel);
}
else if (_totlower(ptr[1]) == _T('k'))
{
/* This just runs a program and remains */
GetCmdLineCommand(commandline, &ptr[2], AlwaysStrip);
ParseCommandLine(commandline);
ShowVersion = FALSE;
break;
}
else if (_totlower(ptr[1]) == _T('s'))
{
AlwaysStrip = TRUE;
}
#ifdef INCLUDE_CMD_COLOR
else if (!_tcsnicmp(ptr, _T("/t:"), 3))
{
/* process /t (color) argument */
wDefColor = (WORD)_tcstoul(&ptr[3], &ptr, 16);
wColor = wDefColor;
SetScreenColor (wColor, TRUE);
}
#endif
else if (_totlower(ptr[1]) == _T('v'))
{
bDelayedExpansion = _tcsnicmp(&ptr[2], _T(":off"), 4);
}
}
}
if (ShowVersion)
{
/* 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-") _T(COPYRIGHT_YEAR) _T(" 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()
{
/* 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_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 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();
/* call prompt routine */
nExitCode = ProcessInput();
/* do the cleanup */
Cleanup();
cmd_exit(nExitCode);
return(nExitCode);
}
/* EOF */
Reference in a new issue View git blame Copy permalink