在Windows中更改文件所有者

// #includes omitted for the sake of sanity
    HANDLE token;
    char *filename = "somefile.txt";
    char *newuser = "someuser";
    DWORD len;
    PSecurity_DESCRIPTOR security = NULL;
    PSID sidPtr = NULL;
    int retValue = 1;

    // Get the privileges you need
    if (OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES,&token)) {
        SetPrivilege(token,"SeTakeownershipPrivilege",1);
        SetPrivilege(token,"SeSecurityPrivilege","SeBACkupPrivilege","SeRestorePrivilege",1);
    } else retValue = 0;

    // Create the security descriptor
    if (retvalue) {
        GetFileSecurity(filename,owneR_Security_INFORMATION,security,&len);
        security = (PSecurity_DESCRIPTOR)malloc(len);
        if (!InitializeSecurityDescriptor(security,Security_DESCRIPTOR_REVISION))
            retValue = 0;
    }

    // Get the sid for the username
    if (retvalue) {
        char domainbuf[4096];
        DWORD sidSize = 0;
        DWORD bufSize = 4096;
        SID_NAME_USE sidUse;
        LookupAccountName(NULL,newuser,sidPtr,&sidSize,domainbuf,&bufSize,&sidUsE);
        sid = (PSID)malloc(sidSizE);
        if (!LookupAccountName(NULL,String,(PSID)sid,&sidUsE))
            retValue = 0;
        }
    }

    // Set the sid to be the new owner
    if (retValue && !SetSecurityDescriptorowner(security,0))
        retValue = 0;

    // Save the security descriptor
    if (retvalue)
        retValue = SetFileSecurity(filename,security);
    if (security) free(security);
    if (sid) free(sid);
    return retValue;

`