open_how - how to open a pathname

Specifies how a pathname should be opened. The fields are as follows: flags This field specifies the file creation and file status flags to use when opening the file. mode This field specifies the mode for the new file. resolve This is a bit mask of flags that modify the way in which all components of a pathname will be resolved (see path_resolution(7) for background information).

Linux kernel headers

open_how - how to open a pathname

openat2(2) Linux man-pages 6.9.1 2024-05-02 open_how(2type)

Linux.

#include<linux/openat2.h>structopen_how{u64flags; /* O_* flags */ u64mode; /* Mode for O_{CREAT,TMPFILE} */ u64resolve; /* RESOLVE_* flags */ /* ... */ };

Extra fields may be appended to the structure, with a zero value in a new field resulting in the kernel behaving as though that extension field was not present. Therefore, a user must zero-fill this structure on initialization.