diff options
| author | dzwdz | 2022-10-02 19:25:17 +0200 |
|---|---|---|
| committer | dzwdz | 2022-10-02 19:25:17 +0200 |
| commit | 710e9b2b5c16f74f66420c66d12455ad518d42c7 (patch) | |
| tree | 82b88cc07ef3f122512354d649af68584bd4da4d /src/shared/include | |
| parent | 503d9ff758f8b83295830bdfc8c2ea56837d25e5 (diff) | |
syscall/open: add the full suite of READ/WRITE flags
Diffstat (limited to 'src/shared/include')
| -rw-r--r-- | src/shared/include/camellia/flags.h | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/src/shared/include/camellia/flags.h b/src/shared/include/camellia/flags.h index 0eaa02e..b7cc42d 100644 --- a/src/shared/include/camellia/flags.h +++ b/src/shared/include/camellia/flags.h @@ -10,7 +10,20 @@ #define WRITE_TRUNCATE 1 -#define OPEN_CREATE 1 -#define OPEN_RO 2 - #define FSR_DELEGATE 1 + + +#define OPEN_READ 1 +#define OPEN_WRITE 2 +#define OPEN_RW 3 +/* not setting OPEN_READ nor OPEN_WRITE works as if OPEN_READ was set, but it also checks the execute bit. + * same as in plan9. */ +#define OPEN_EXEC 0 + +#define OPEN_READABLE(flags) ((flags & 3) != OPEN_WRITE) +#define OPEN_WRITEABLE(flags) (flags & OPEN_WRITE) + +/* Requires OPEN_WRITE to be set, enforced by the kernel. + * The idea is that if all flags which allow modifying the filesystem state require + * OPEN_WRITE to be set, filesystem handlers could just check for the OPEN_WRITE flag. */ +#define OPEN_CREATE 4 |