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-rw-r--r--plugins/sudoers/pwutil.h75
1 files changed, 75 insertions, 0 deletions
diff --git a/plugins/sudoers/pwutil.h b/plugins/sudoers/pwutil.h
new file mode 100644
index 0000000..7c36e70
--- /dev/null
+++ b/plugins/sudoers/pwutil.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2010-2013, 2015-2017 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_PWUTIL_H
+#define SUDOERS_PWUTIL_H
+
+#define ptr_to_item(p) ((struct cache_item *)((char *)p - offsetof(struct cache_item_##p, p)))
+
+/*
+ * Generic cache element.
+ */
+struct cache_item {
+ unsigned int refcnt;
+ unsigned int type; /* only used for gidlist */
+ char registry[16]; /* AIX-specific, empty otherwise */
+ /* key */
+ union {
+ uid_t uid;
+ gid_t gid;
+ char *name;
+ } k;
+ /* datum */
+ union {
+ struct passwd *pw;
+ struct group *gr;
+ struct group_list *grlist;
+ struct gid_list *gidlist;
+ } d;
+};
+
+/*
+ * Container structs to simpify size and offset calculations and guarantee
+ * proper aligment of struct passwd, group, gid_list and group_list.
+ */
+struct cache_item_pw {
+ struct cache_item cache;
+ struct passwd pw;
+};
+
+struct cache_item_gr {
+ struct cache_item cache;
+ struct group gr;
+};
+
+struct cache_item_grlist {
+ struct cache_item cache;
+ struct group_list grlist;
+ /* actually bigger */
+};
+
+struct cache_item_gidlist {
+ struct cache_item cache;
+ struct gid_list gidlist;
+ /* actually bigger */
+};
+
+struct cache_item *sudo_make_gritem(gid_t gid, const char *group);
+struct cache_item *sudo_make_grlist_item(const struct passwd *pw, char * const *groups);
+struct cache_item *sudo_make_gidlist_item(const struct passwd *pw, char * const *gids, unsigned int type);
+struct cache_item *sudo_make_pwitem(uid_t uid, const char *user);
+
+#endif /* SUDOERS_PWUTIL_H */