| 8efc0c15 |
1 | /* |
| 2 | |
| 3 | uidswap.h |
| 4 | |
| 5 | Author: Tatu Ylonen <ylo@cs.hut.fi> |
| 6 | |
| 7 | Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
| 8 | All rights reserved |
| 9 | |
| 10 | Created: Sat Sep 9 01:43:15 1995 ylo |
| 11 | Last modified: Sat Sep 9 02:34:04 1995 ylo |
| 12 | |
| 13 | */ |
| 14 | |
| 15 | #ifndef UIDSWAP_H |
| 16 | #define UIDSWAP_H |
| 17 | |
| 18 | /* Temporarily changes to the given uid. If the effective user id is not |
| 19 | root, this does nothing. This call cannot be nested. */ |
| 20 | void temporarily_use_uid(uid_t uid); |
| 21 | |
| 22 | /* Restores the original effective user id after temporarily_use_uid(). |
| 23 | This should only be called while temporarily_use_uid is effective. */ |
| 24 | void restore_uid(); |
| 25 | |
| 26 | /* Permanently sets all uids to the given uid. This cannot be called while |
| 27 | temporarily_use_uid is effective. This must also clear any saved uids. */ |
| 28 | void permanently_set_uid(uid_t uid); |
| 29 | |
| 30 | #endif /* UIDSWAP_H */ |
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