1 files changed, 77 insertions, 0 deletions
diff --git a/plugins/sudoers/pwutil.h b/plugins/sudoers/pwutil.h
new file mode 100644
index 0000000..d08f61f
--- /dev/null
+++ b/plugins/sudoers/pwutil.h
@@ -0,0 +1,77 @@
+/*
+ * SPDX-License-Identifier: ISC
+ *
+ * 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 alignment 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 */