changing file attributes (windows) in C/C++

[sciencewhiz]

Is there a way to make a file read only in windows in C/C++. I figure I can probably do it with a system call to attrib, but that doesn't seem to be a very clean way to do it.

Basically, I want to create a file, write data to it, close it, make it read only.

 

[n0cmonkey]

chmod(2)?

 

[oog]

if it's C++ on a Windows machine, you'll want to use the Win32 API to set the file attributes:

BOOL SetFileAttributes(LPCTSTR lpFileName, DWORD dwFileAttributes);

The first parameter is the filename, specified as an array of TCHARs (which are single byte or multiple byte characters depending on the OS) and the second parameter is a bitfield for the different attributes you can set.

More information can be found here: http://msdn.microsoft.com/library/defau.../en-us/fileio/fs/setfileattributes.asp

 

[Bulldog13]

Originally posted by: n0cmonkey
chmod(2)?

You can do that in windows ? Or is that just linux ?

 

[n0cmonkey]

Originally posted by: Bulldog13

Originally posted by: n0cmonkey
chmod(2)?

You can do that in windows ? Or is that just linux ?

No idea. I looked up the OpenBSD manpage.

STANDARDS
The chmod() function is expected to conform to IEEE Std 1003.1-1988

 

[sciencewhiz]

Thanks oog.

chmod appears to work as well, fwiw.

 

[Barnaby W. Füi]

Yeah chmod is posix, and supposedly NT is posix-compliant .. or something like that. But it's probably not very idiomatic.