Using SetNamedSecurityInfo

[sjesweak]

Hi everyone -

 

I'm trying to change a name associated with a file using SetNamedSecurityInfo. The parameters I'm passing in are C:\temp\test.txt for path and "tommy boy" for name. I created an accoun on my Windows XP Professional and created the test.txt file using my admin account. When i display the security information it does show that it's mine. When I try and change the account name that is associated with the test.txt file it gives me an error code of 87 at dRtnErrorCode with SetNamedSecurityInfo.... anyone have any idea?

 

 

 

 

int setOwner(char* path, char* name){

 

DWORD dwRtnCode = 0;

LPTSTR pSid, DomainName;

DWORD dwSid = 1, dwDomainName = 1;

BOOL bRtnBool = TRUE;

LPTSTR fileName = path;

LPCTSTR acctName = name;

SID_NAME_USE eUse = SidTypeUnknown;

 

// Get Buffer Size for LookupAccountName

bRtnBool = LookupAccountName(

NULL,

acctName,

(PSID) &pSid,

(LPDWORD) &dwSid,

(LPTSTR) &DomainName,

(LPDWORD) &dwDomainName,

&eUse);

 

// Reallocate memory for the buffers.

pSid = (char *)GlobalAlloc(

GMEM_FIXED,

dwSid);

 

// Check GetLastError for GlobalAlloc error condition.

if (pSid == NULL) {

DWORD dwErrorCode = 0;

dwErrorCode = GetLastError();

_tprintf(TEXT("GlobalAlloc error = %d\n"), dwErrorCode);

return -1;

}

DomainName = (char *)GlobalAlloc(

GMEM_FIXED,

dwDomainName);

 

// Check GetLastError for GlobalAlloc error condition.

if (DomainName == NULL) {

DWORD dwErrorCode = 0;

 

dwErrorCode = GetLastError();

_tprintf(TEXT("GlobalAlloc error = %d\n"), dwErrorCode);

return -1;

}

 

// Second call to LookupAccountName to get the account name.

bRtnBool = LookupAccountName(

NULL, // name of local or remote computer

acctName, // name of account

pSid, // sid buffer

(LPDWORD)&dwSid, // size of sid buffer

DomainName, // domain name

(LPDWORD)&dwDomainName, // size of domain name buffer

&eUse); // SID type

 

// Check GetLastError for LookupAccountName error condition.

if (bRtnBool == FALSE) {

DWORD dwErrorCode = 0;

 

dwErrorCode = GetLastError();

 

if (dwErrorCode == ERROR_NONE_MAPPED)

_tprintf(TEXT("SID not found for specified Account Name.\n"));

else

_tprintf(TEXT("Error in LookupAccountName.\n"));

return -1;

 

} else if (bRtnBool == TRUE){

 

// Set the owner SID of the file.

dwRtnCode = SetNamedSecurityInfo(

fileName,

SE_FILE_OBJECT,

OWNER_SECURITY_INFORMATION,

&pSid,

NULL,

NULL,

NULL);

 

// Check GetLastError for SetNamedSecurityInfo error condition.

if (dwRtnCode != ERROR_SUCCESS) {

DWORD dwErrorCode = 0;

 

dwErrorCode = GetLastError();

_tprintf(TEXT("SetNamedSecurityInfo error = %d\n"), dwErrorCode);

return -1;

}

 

// Print the account name.

displayOwner(path);

}

return 0;

}

[Derek Stone]

Use the [api]FormatMessage[/api] Win32 API function to retrieve a description of the error.