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| author | Tom Gundersen <teg@jklm.no> | 2015-10-27 16:55:16 +0100 |
|---|---|---|
| committer | Tom Gundersen <teg@jklm.no> | 2015-10-27 16:55:16 +0100 |
| commit | 0d0696812980d8f41c54739ad73716a233a2fa7c (patch) | |
| tree | 217d98308a3039e106efde5fd6a7b6a657916950 /src/basic/user-util.h | |
| parent | f47fc3ffc4b69a00083a76308f777b52afb8efbf (diff) | |
| parent | 7760171904ef007f19e8f46aa240a00e382d5b74 (diff) | |
Merge pull request #1691 from poettering/util-lib-3
split up util.h and macro.h into even more bits
Diffstat (limited to 'src/basic/user-util.h')
| -rw-r--r-- | src/basic/user-util.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/basic/user-util.h b/src/basic/user-util.h index 7995698f27..11ff6674cf 100644 --- a/src/basic/user-util.h +++ b/src/basic/user-util.h @@ -52,3 +52,16 @@ int get_home_dir(char **ret); int get_shell(char **_ret); int reset_uid_gid(void); + +int take_etc_passwd_lock(const char *root); + +#define UID_INVALID ((uid_t) -1) +#define GID_INVALID ((gid_t) -1) + +/* The following macros add 1 when converting things, since UID 0 is a + * valid UID, while the pointer NULL is special */ +#define PTR_TO_UID(p) ((uid_t) (((uintptr_t) (p))-1)) +#define UID_TO_PTR(u) ((void*) (((uintptr_t) (u))+1)) + +#define PTR_TO_GID(p) ((gid_t) (((uintptr_t) (p))-1)) +#define GID_TO_PTR(u) ((void*) (((uintptr_t) (u))+1)) |