Forum: C-Programmieren

...es fing gleich schon mit der Speicherallokation für die Struktur an. Sinngemäß bekam ich eine Fehlermeldung, dass void* nicht mit der F_N_I Entität vereinbar ist...

Bevor ich meinem Laptop das angedrohte ServicePack verpassen wollte habe ich noch einmal im Netz nachgesehen und dabei folgenden, wirklich perfekt funktionierenden Code gefunden. Werde mir jetzt mal die Einzelheiten des Codes ansehen. Was für eine schwere Geburt :)

Für alle, die es interessiert... hier der Code aus dem Netz

#include <windows.h>
#include <stdio.h>
#include <string.h>


int main(int argc, char *argv[]){
    HANDLE hDir;

 char buf[1024];
 FILE_NOTIFY_INFORMATION * fn;
 int read;
 WCHAR * action = NULL;

 if(argc != 2) {
  printf(
"Usage: %s <directory_path>\n"
" Monitor directory changes with all subdirectories\n"
" For any files, including ones you have no access\n"
" (as on January, 2007)\n"
"(c) Vladimir Dubrovin, 3APA3A\n"
" http://securityvulns.com\n"
" http://securityvulns.ru\n"
"This approach is not reliable and should not be used for audit and another critical operations.\n",
 argv[0]);
  return 1;
 }

 CreateDirectory(argv[1], 0);
 hDir = CreateFile(
   argv[1],
   FILE_LIST_DIRECTORY,
   FILE_SHARE_READ|FILE_SHARE_DELETE|FILE_SHARE_WRITE,
   NULL,
   OPEN_EXISTING,
   FILE_FLAG_BACKUP_SEMANTICS,
   NULL
 );
 if(hDir == INVALID_HANDLE_VALUE){
  fprintf(stdout, "Failed to open dir\n");
  return 2;
 }
 for(;;){
     if(!ReadDirectoryChangesW(
  hDir,
  buf,
  1022,
  TRUE,
  FILE_NOTIFY_CHANGE_DIR_NAME | FILE_NOTIFY_CHANGE_FILE_NAME | FILE_NOTIFY_CHANGE_LAST_ACCESS |
   FILE_NOTIFY_CHANGE_ATTRIBUTES | FILE_NOTIFY_CHANGE_SIZE | FILE_NOTIFY_CHANGE_LAST_WRITE |
   FILE_NOTIFY_CHANGE_CREATION | FILE_NOTIFY_CHANGE_SECURITY
  ,
  (DWORD *)&read,
  NULL,
  NULL
  )) {
   fprintf(stderr, "Failed to read directory changes\n");
   break;
  }
  for (fn = (FILE_NOTIFY_INFORMATION *)buf; ;){
   fn->FileName[fn->FileNameLength/2] = 0;
   switch(fn->Action){
   case FILE_ACTION_ADDED:
    action = L"added";
    break;
   case FILE_ACTION_REMOVED:
    action = L"removed";
    break;
   case FILE_ACTION_MODIFIED:
    action = L"accessed/modified";
    break;
   case FILE_ACTION_RENAMED_OLD_NAME:
    action = L"renamed (old name)";
    break;
   case FILE_ACTION_RENAMED_NEW_NAME:
    action = L"renamed (new name)";
    break;
   default:
    action = L"(unknown)";
   }
      wprintf(L"File %s: %s\n", action, fn->FileName);
      if(!fn->NextEntryOffset) break;
      fn = (FILE_NOTIFY_INFORMATION *)(((char *)fn) + fn->NextEntryOffset);
  }
 }
 return 0;
 
}