diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 14:37:38 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 14:37:38 +0000 |
commit | ae581a19fbe896a797450b9d9573fb66f2735227 (patch) | |
tree | 56c40be8518a29c9351364d13a9676aa83932dc0 /plugins/sudoers/redblack.h | |
parent | Initial commit. (diff) | |
download | sudo-upstream.tar.xz sudo-upstream.zip |
Adding upstream version 1.9.13p3.upstream/1.9.13p3upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'plugins/sudoers/redblack.h')
-rw-r--r-- | plugins/sudoers/redblack.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/plugins/sudoers/redblack.h b/plugins/sudoers/redblack.h new file mode 100644 index 0000000..300383d --- /dev/null +++ b/plugins/sudoers/redblack.h @@ -0,0 +1,60 @@ +/* + * SPDX-License-Identifier: ISC + * + * Copyright (c) 2004, 2007, 2010, 2013 + * Todd C. Miller <Todd.Miller@sudo.ws> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef SUDOERS_REDBLACK_H +#define SUDOERS_REDBLACK_H + +enum rbcolor { + red, + black +}; + +enum rbtraversal { + preorder, + inorder, + postorder +}; + +struct rbnode { + struct rbnode *left, *right, *parent; + void *data; + enum rbcolor color; +}; + +struct rbtree { + int (*compar)(const void *, const void *); + struct rbnode root; + struct rbnode nil; +}; + +#define rbapply(t, f, c, o) rbapply_node((t), (t)->root.left, (f), (c), (o)) +#define rbisempty(t) ((t)->root.left == &(t)->nil && (t)->root.right == &(t)->nil) +#define rbfirst(t) ((t)->root.left) +#define rbroot(t) (&(t)->root) +#define rbnil(t) (&(t)->nil) + +void *rbdelete(struct rbtree *, struct rbnode *); +int rbapply_node(struct rbtree *, struct rbnode *, + int (*)(void *, void *), void *, enum rbtraversal); +struct rbnode *rbfind(struct rbtree *, void *); +int rbinsert(struct rbtree *, void *, struct rbnode **); +struct rbtree *rbcreate(int (*)(const void *, const void *)); +void rbdestroy(struct rbtree *, void (*)(void *)); + +#endif /* SUDOERS_REDBLACK_H */ |