- 1 year ago
How to set permission to FAT32 USB pen drive in windows c/c++?
Setting permissions on a FAT32 USB pen drive in Windows using C/C++ involves interacting with the Windows API. FAT32 does not support the same level of file and folder permissions as NTFS, so the available options are limited. Here's an example of how you can modify the read-only attribute of a file on a FAT32 drive:
c#include <Windows.h>
int main() {
const char* filePath = "F:\\path\\to\\file.txt"; // Replace with the actual file path
DWORD attributes = GetFileAttributes(filePath);
if (attributes != INVALID_FILE_ATTRIBUTES) {
attributes &= ~FILE_ATTRIBUTE_READONLY; // Remove the read-only attribute
SetFileAttributes(filePath, attributes);
}
return 0;
}
In the example above, the GetFileAttributes
function retrieves the current file attributes, and the SetFileAttributes
function is used to modify the attributes. By removing the FILE_ATTRIBUTE_READONLY
flag from the attributes, you can clear the read-only attribute on the file.
Keep in mind that this method only modifies the read-only attribute of the file; it does not provide the ability to set more granular permissions on FAT32 drives. FAT32 file systems have limited support for permissions and do not have built-in access control lists (ACLs) like NTFS.
If you require more advanced permissions or control over the file system on the USB pen drive, you may need to consider using a different file system, such as NTFS or exFAT, that provides more robust permission management capabilities.