Windows File open permisisons

I am working on porting a some software form Unix to windows. I create a couple files and want their permissions to be set to 777(or the windows equivilent) they are currently being set with the unix variables:

Code:

---

i_fileID = open(
    pc_FileName,
    O_WRONLY|O_CREAT, S_IRUSR|S_IROTH|
    S_IRGRP|S_IWUSR|S_IWOTH|S_IWGRP|S_IXUSR|S_IXOTH|S_IXGRP);

---

these of course are not defined in any windows headers. i havnt found a good way of changing them so that this opens a file with full permissions.

Complete control over this is only possible with the CreateFile API. Note that Windows doesn't have a concept of an "executable" bit, nor does it have UNIX-style groups. The access permissions are granted via ACLs.

The interesting part is in Microsoft's subsystem for Unix applications (SUA) in their include headers they define those variables in a similar fashion to the Unix counterpart. since they are just constants couldn't I copy them over into a header that my code could use?

also. How different is open() and fopen()? this code I'm working on is fairly old... I already had to replace some memalign() calls.