--- /dev/null
+/*
+ * Copyright (C) 2009 Karel Zak <kzak@redhat.com>
+ *
+ * This file may be redistributed under the terms of the
+ * GNU Lesser General Public License.
+ */
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "mountP.h"
+
+/**
+ * mnt_new_iter:
+ * @direction: MNT_INTER_{FOR,BACK}WARD direction
+ *
+ * Returns newly allocated generic libmount iterator.
+ */
+mnt_iter *mnt_new_iter(int direction)
+{
+ mnt_iter *itr = calloc(1, sizeof(struct _mnt_iter));
+ if (!itr)
+ return NULL;
+ itr->direction = direction;
+ return itr;
+}
+
+/**
+ * mnt_free_iter:
+ * @itr: iterator pointer
+ *
+ * Deallocates iterator.
+ */
+void mnt_free_iter(mnt_iter *itr)
+{
+ free(itr);
+}
+
+/**
+ * mnt_reset_iter:
+ * @itr: iterator pointer
+ * @direction: MNT_INTER_{FOR,BACK}WARD iterator direction
+ *
+ * Resets iterator.
+ */
+void mnt_reset_iter(mnt_iter *itr, int direction)
+{
+ assert(itr);
+
+ if (itr) {
+ memset(itr, 0, sizeof(struct _mnt_iter));
+ itr->direction = direction;
+ }
+}
--- /dev/null
+/*
+ * Copyright (C) 2008 Karel Zak <kzak@redhat.com>
+ * Copyright (C) 1999-2008 by Theodore Ts'o
+ *
+ * (based on list.h from e2fsprogs)
+ */
+
+#if !defined(_LIBMOUNT_LIST_H) && !defined(LIST_HEAD)
+#define _LIBMOUNT_LIST_H
+
+/* TODO: use AC_C_INLINE */
+#ifdef __GNUC__
+#define _INLINE_ static __inline__
+#else /* For Watcom C */
+#define _INLINE_ static inline
+#endif
+
+/*
+ * Simple doubly linked list implementation.
+ *
+ * Some of the internal functions ("__xxx") are useful when
+ * manipulating whole lists rather than single entries, as
+ * sometimes we already know the next/prev entries and we can
+ * generate better code by using them directly rather than
+ * using the generic single-entry routines.
+ */
+
+struct list_head {
+ struct list_head *next, *prev;
+};
+
+#define LIST_HEAD_INIT(name) { &(name), &(name) }
+
+#define LIST_HEAD(name) \
+ struct list_head name = LIST_HEAD_INIT(name)
+
+#define INIT_LIST_HEAD(ptr) do { \
+ (ptr)->next = (ptr); (ptr)->prev = (ptr); \
+} while (0)
+
+/*
+ * Insert a new entry between two known consecutive entries.
+ *
+ * This is only for internal list manipulation where we know
+ * the prev/next entries already!
+ */
+_INLINE_ void __list_add(struct list_head * add,
+ struct list_head * prev,
+ struct list_head * next)
+{
+ next->prev = add;
+ add->next = next;
+ add->prev = prev;
+ prev->next = add;
+}
+
+/**
+ * list_add - add a new entry
+ * @add: new entry to be added
+ * @head: list head to add it after
+ *
+ * Insert a new entry after the specified head.
+ * This is good for implementing stacks.
+ */
+_INLINE_ void list_add(struct list_head *add, struct list_head *head)
+{
+ __list_add(add, head, head->next);
+}
+
+/**
+ * list_add_tail - add a new entry
+ * @add: new entry to be added
+ * @head: list head to add it before
+ *
+ * Insert a new entry before the specified head.
+ * This is useful for implementing queues.
+ */
+_INLINE_ void list_add_tail(struct list_head *add, struct list_head *head)
+{
+ __list_add(add, head->prev, head);
+}
+
+/*
+ * Delete a list entry by making the prev/next entries
+ * point to each other.
+ *
+ * This is only for internal list manipulation where we know
+ * the prev/next entries already!
+ */
+_INLINE_ void __list_del(struct list_head * prev,
+ struct list_head * next)
+{
+ next->prev = prev;
+ prev->next = next;
+}
+
+/**
+ * list_del - deletes entry from list.
+ * @entry: the element to delete from the list.
+ *
+ * list_empty() on @entry does not return true after this, @entry is
+ * in an undefined state.
+ */
+_INLINE_ void list_del(struct list_head *entry)
+{
+ __list_del(entry->prev, entry->next);
+}
+
+/**
+ * list_del_init - deletes entry from list and reinitialize it.
+ * @entry: the element to delete from the list.
+ */
+_INLINE_ void list_del_init(struct list_head *entry)
+{
+ __list_del(entry->prev, entry->next);
+ INIT_LIST_HEAD(entry);
+}
+
+/**
+ * list_empty - tests whether a list is empty
+ * @head: the list to test.
+ */
+_INLINE_ int list_empty(struct list_head *head)
+{
+ return head->next == head;
+}
+
+/**
+ * list_splice - join two lists
+ * @list: the new list to add.
+ * @head: the place to add it in the first list.
+ */
+_INLINE_ void list_splice(struct list_head *list, struct list_head *head)
+{
+ struct list_head *first = list->next;
+
+ if (first != list) {
+ struct list_head *last = list->prev;
+ struct list_head *at = head->next;
+
+ first->prev = head;
+ head->next = first;
+
+ last->next = at;
+ at->prev = last;
+ }
+}
+
+/**
+ * list_entry - get the struct for this entry
+ * @ptr: the &struct list_head pointer.
+ * @type: the type of the struct this is embedded in.
+ * @member: the name of the list_struct within the struct.
+ */
+#define list_entry(ptr, type, member) \
+ ((type *)((char *)(ptr)-(unsigned long)(&((type *)0)->member)))
+
+/**
+ * list_for_each - iterate over elements in a list
+ * @pos: the &struct list_head to use as a loop counter.
+ * @head: the head for your list.
+ */
+#define list_for_each(pos, head) \
+ for (pos = (head)->next; pos != (head); pos = pos->next)
+
+/**
+ * list_for_each_safe - iterate over elements in a list, but don't dereference
+ * pos after the body is done (in case it is freed)
+ * @pos: the &struct list_head to use as a loop counter.
+ * @pnext: the &struct list_head to use as a pointer to the next item.
+ * @head: the head for your list (not included in iteration).
+ */
+#define list_for_each_safe(pos, pnext, head) \
+ for (pos = (head)->next, pnext = pos->next; pos != (head); \
+ pos = pnext, pnext = pos->next)
+
+#undef _INLINE_
+
+#endif /* __LIBFSPROBE_LIST_H__ */
#define _LIBMOUNT_PRIVATE_H
#include <sys/types.h>
+
#include "mount.h"
+#include "list.h"
/* features */
#define CONFIG_CDROM_NOMEDIUM_RETRIES 5
extern char *mnt_get_username(const uid_t uid);
extern char *mnt_strconcat3(char *s, const char *t, const char *u);
+
+/*
+ * Generic iterator
+ */
+struct _mnt_iter {
+ struct list_head *p; /* current position */
+ struct list_head *head; /* start position */
+ int direction; /* MNT_ITER_{FOR,BACK}WARD */
+};
+
+#define IS_ITER_FORWARD(_i) ((_i)->direction == MNT_ITER_FORWARD)
+#define IS_ITER_BACKWARD(_i) ((_i)->direction == MNT_ITER_BACKWARD)
+
+#define MNT_ITER_INIT(itr, list) \
+ do { \
+ (itr)->p = IS_ITER_FORWARD(itr) ? \
+ (list)->next : (list)->prev; \
+ (itr)->head = (list); \
+ } while(0)
+
+#define MNT_ITER_ITERATE(itr, res, restype, member) \
+ do { \
+ res = list_entry((itr)->p, restype, member); \
+ (itr)->p = IS_ITER_FORWARD(itr) ? \
+ (itr)->p->next : (itr)->p->prev; \
+ } while(0)
+
#endif
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