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user-util: move UID/GID related macros from macro.h to user-util.h

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This commit is contained in:
Lennart Poettering
2015-10-27 13:25:57 +01:00
parent 49cf4170d0
commit ee104e11e3
31 changed files with 51 additions and 21 deletions
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src/basic/user-util.h
+11
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@@ -54,3 +54,14 @@ 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))