Source code of Windows XP (NT5)
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107 lines
3.0 KiB

#include "shellprv.h"
#pragma hdrstop
BOOL _CopyCommand(LPCTSTR pszCommand, LPCTSTR pszDir, LPTSTR pszOut, DWORD cchOut)
{
BOOL fCopyBack = TRUE;
BOOL fRet = TRUE;
// if it does not have quotes, try unquoted name to see if that works...
if (pszCommand[0] != TEXT('"'))
{
if (UrlIs(pszCommand, URLIS_URL))
{
// urls never have params...
fCopyBack = fRet = FALSE;
lstrcpyn(pszOut, pszCommand, cchOut);
}
else if (StrChr(pszCommand, TEXT(' ')))
{
lstrcpyn(pszOut, pszCommand, cchOut);
PathQualifyDef(pszOut, pszDir, 0);
// Check for possible existence of arguments
if (PathFileExistsAndAttributes(pszOut, NULL))
{
fCopyBack = fRet = FALSE;
}
}
else
fRet = FALSE;
}
// we need to put the original command for args parsing
if (fCopyBack)
lstrcpyn(pszOut, pszCommand, cchOut);
return fRet;
}
BOOL _QualifyWorkingDir(LPCTSTR pszPath, LPTSTR pszDir, DWORD cchDir)
{
// special case to make sure the working dir gets set right:
// 1) no working dir specified
// 2) a drive or a root path, or a relative path specified
// derive the working dir from the qualified path. this is to make
// sure the working dir for setup programs "A:setup" is set right
if (StrChr(pszPath, TEXT('\\')) || StrChr(pszPath, TEXT(':')))
{
// build working dir based on qualified path
lstrcpyn(pszDir, pszPath, cchDir);
PathQualifyDef(pszDir, NULL, PQD_NOSTRIPDOTS);
PathRemoveFileSpec(pszDir);
return TRUE;
}
return FALSE;
}
// Run the thing, return TRUE if everything went OK
BOOL ShellExecCmdLine(HWND hwnd, LPCTSTR pszCommand, LPCTSTR pszDir,
int nShow, LPCTSTR pszTitle, DWORD dwFlags)
{
TCHAR szWD[MAX_PATH];
TCHAR szFileName[MAX_PATH];
LPTSTR pszArgs;
SHELLEXECUTEINFO ei = {0};
if (pszDir && *pszDir == TEXT('\0'))
pszDir = NULL;
if (_CopyCommand(pszCommand, pszDir, szFileName, SIZECHARS(szFileName)))
{
// there might be args in that command
pszArgs = PathGetArgs(szFileName);
if (*pszArgs)
*(pszArgs - 1) = TEXT('\0');
}
else
pszArgs = NULL;
PathUnquoteSpaces(szFileName);
// this needs to be here. app installs rely on the current directory
// to be the directory with the setup.exe
if (!UrlIs(szFileName, URLIS_URL)
&& ((dwFlags & SECL_USEFULLPATHDIR) || !pszDir))
{
if (_QualifyWorkingDir(szFileName, szWD, SIZECHARS(szWD)))
pszDir = szWD;
}
FillExecInfo(ei, hwnd, NULL, szFileName, pszArgs, pszDir, nShow);
ei.fMask = SEE_MASK_FLAG_DDEWAIT | SEE_MASK_DOENVSUBST;
if (dwFlags & SECL_NO_UI)
ei.fMask |= SEE_MASK_FLAG_NO_UI;
if (dwFlags & SECL_SEPARATE_VDM)
ei.fMask |= SEE_MASK_FLAG_SEPVDM;
if (dwFlags & SECL_LOG_USAGE)
ei.fMask |= SEE_MASK_FLAG_LOG_USAGE;
return ShellExecuteEx(&ei);
}