| 1 | /* Header for environment manipulation library. |
| 2 | Copyright (C) 1989, 1992, 2000, 2005, 2007, 2008 |
| 3 | Free Software Foundation, Inc. |
| 4 | |
| 5 | This program is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation; either version 3 of the License, or |
| 8 | (at your option) any later version. |
| 9 | |
| 10 | This program is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License |
| 16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 17 | |
| 18 | #if !defined (ENVIRON_H) |
| 19 | #define ENVIRON_H 1 |
| 20 | |
| 21 | /* We manipulate environments represented as these structures. */ |
| 22 | |
| 23 | struct gdb_environ |
| 24 | { |
| 25 | /* Number of usable slots allocated in VECTOR. |
| 26 | VECTOR always has one slot not counted here, |
| 27 | to hold the terminating zero. */ |
| 28 | int allocated; |
| 29 | /* A vector of slots, ALLOCATED + 1 of them. |
| 30 | The first few slots contain strings "VAR=VALUE" |
| 31 | and the next one contains zero. |
| 32 | Then come some unused slots. */ |
| 33 | char **vector; |
| 34 | }; |
| 35 | |
| 36 | extern struct gdb_environ *make_environ (void); |
| 37 | |
| 38 | extern void free_environ (struct gdb_environ *); |
| 39 | |
| 40 | extern void init_environ (struct gdb_environ *); |
| 41 | |
| 42 | extern char *get_in_environ (const struct gdb_environ *, const char *); |
| 43 | |
| 44 | extern void set_in_environ (struct gdb_environ *, const char *, const char *); |
| 45 | |
| 46 | extern void unset_in_environ (struct gdb_environ *, char *); |
| 47 | |
| 48 | extern char **environ_vector (struct gdb_environ *); |
| 49 | |
| 50 | #endif /* defined (ENVIRON_H) */ |