| Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1 | /* |
| Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2 | * Author: Tatu Ylonen <ylo@cs.hut.fi> |
| Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 3 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
| 4 | * All rights reserved |
| Damien Miller | 4af5130 | 2000-04-16 11:18:38 +1000 | [diff] [blame] | 5 | * |
| Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 6 | * As far as I am concerned, the code I have written for this software |
| 7 | * can be used freely for any purpose. Any derived versions of this |
| 8 | * software must be clearly marked as such, and if the derived work is |
| 9 | * incompatible with the protocol description in the RFC file, it must be |
| 10 | * called by a name other than "ssh" or "Secure Shell". |
| Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 11 | */ |
| Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 12 | |
| 13 | #ifndef UIDSWAP_H |
| 14 | #define UIDSWAP_H |
| 15 | |
| Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 16 | /* |
| 17 | * Temporarily changes to the given uid. If the effective user id is not |
| 18 | * root, this does nothing. This call cannot be nested. |
| 19 | */ |
| 20 | void temporarily_use_uid(uid_t uid); |
| Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 21 | |
| Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 22 | /* |
| 23 | * Restores the original effective user id after temporarily_use_uid(). |
| 24 | * This should only be called while temporarily_use_uid is effective. |
| 25 | */ |
| 26 | void restore_uid(); |
| Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 27 | |
| Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 28 | /* |
| 29 | * Permanently sets all uids to the given uid. This cannot be called while |
| 30 | * temporarily_use_uid is effective. This must also clear any saved uids. |
| 31 | */ |
| 32 | void permanently_set_uid(uid_t uid); |
| Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 33 | |
| Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 34 | #endif /* UIDSWAP_H */ |