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-rw-r--r--lib/ccan/list/LICENSE508
-rw-r--r--lib/ccan/list/_info70
-rw-r--r--lib/ccan/list/list.c43
-rw-r--r--lib/ccan/list/list.d27
-rw-r--r--lib/ccan/list/list.h469
-rw-r--r--lib/ccan/list/test/compile_ok-constant.c49
-rw-r--r--lib/ccan/list/test/helper.c54
-rw-r--r--lib/ccan/list/test/helper.h7
-rw-r--r--lib/ccan/list/test/run-check-corrupt.c89
-rw-r--r--lib/ccan/list/test/run-list_del_from-assert.c36
-rw-r--r--lib/ccan/list/test/run-single-eval.c168
-rw-r--r--lib/ccan/list/test/run-with-debug.c3
-rw-r--r--lib/ccan/list/test/run.c200
13 files changed, 1723 insertions, 0 deletions
diff --git a/lib/ccan/list/LICENSE b/lib/ccan/list/LICENSE
new file mode 100644
index 0000000000..5522aa5f33
--- /dev/null
+++ b/lib/ccan/list/LICENSE
@@ -0,0 +1,508 @@
+
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+ Version 2.1, February 1999
+
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diff --git a/lib/ccan/list/_info b/lib/ccan/list/_info
new file mode 100644
index 0000000000..a30659c1cf
--- /dev/null
+++ b/lib/ccan/list/_info
@@ -0,0 +1,70 @@
+#include <stdio.h>
+#include <string.h>
+#include "config.h"
+
+/**
+ * list - double linked list routines
+ *
+ * The list header contains routines for manipulating double linked lists.
+ * It defines two types: struct list_head used for anchoring lists, and
+ * struct list_node which is usually embedded in the structure which is placed
+ * in the list.
+ *
+ * Example:
+ * #include <err.h>
+ * #include <stdio.h>
+ * #include <stdlib.h>
+ * #include <ccan/list/list.h>
+ *
+ * struct parent {
+ * const char *name;
+ * struct list_head children;
+ * unsigned int num_children;
+ * };
+ *
+ * struct child {
+ * const char *name;
+ * struct list_node list;
+ * };
+ *
+ * int main(int argc, char *argv[])
+ * {
+ * struct parent p;
+ * struct child *c;
+ * unsigned int i;
+ *
+ * if (argc < 2)
+ * errx(1, "Usage: %s parent children...", argv[0]);
+ *
+ * p.name = argv[1];
+ * list_head_init(&p.children);
+ * p.num_children = 0;
+ * for (i = 2; i < argc; i++) {
+ * c = malloc(sizeof(*c));
+ * c->name = argv[i];
+ * list_add(&p.children, &c->list);
+ * p.num_children++;
+ * }
+ *
+ * printf("%s has %u children:", p.name, p.num_children);
+ * list_for_each(&p.children, c, list)
+ * printf("%s ", c->name);
+ * printf("\n");
+ * return 0;
+ * }
+ *
+ * License: LGPL (v2.1 or any later version)
+ * Author: Rusty Russell <rusty@rustcorp.com.au>
+ */
+int main(int argc, char *argv[])
+{
+ if (argc != 2)
+ return 1;
+
+ if (strcmp(argv[1], "depends") == 0) {
+ printf("ccan/container_of\n");
+ return 0;
+ }
+
+ return 1;
+}
diff --git a/lib/ccan/list/list.c b/lib/ccan/list/list.c
new file mode 100644
index 0000000000..29dc30ba19
--- /dev/null
+++ b/lib/ccan/list/list.c
@@ -0,0 +1,43 @@
+/* Licensed under LGPLv2.1+ - see LICENSE file for details */
+#include <stdio.h>
+#include <stdlib.h>
+#include "list.h"
+
+static void *corrupt(const char *abortstr,
+ const struct list_node *head,
+ const struct list_node *node,
+ unsigned int count)
+{
+ if (abortstr) {
+ fprintf(stderr,
+ "%s: prev corrupt in node %p (%u) of %p\n",
+ abortstr, node, count, head);
+ abort();
+ }
+ return NULL;
+}
+
+struct list_node *list_check_node(const struct list_node *node,
+ const char *abortstr)
+{
+ const struct list_node *p, *n;
+ int count = 0;
+
+ for (p = node, n = node->next; n != node; p = n, n = n->next) {
+ count++;
+ if (n->prev != p)
+ return corrupt(abortstr, node, n, count);
+ }
+ /* Check prev on head node. */
+ if (node->prev != p)
+ return corrupt(abortstr, node, node, 0);
+
+ return (struct list_node *)node;
+}
+
+struct list_head *list_check(const struct list_head *h, const char *abortstr)
+{
+ if (!list_check_node(&h->n, abortstr))
+ return NULL;
+ return (struct list_head *)h;
+}
diff --git a/lib/ccan/list/list.d b/lib/ccan/list/list.d
new file mode 100644
index 0000000000..dd249588c4
--- /dev/null
+++ b/lib/ccan/list/list.d
@@ -0,0 +1,27 @@
+ccan/list/list.o: ccan/list/list.c /usr/include/stdio.h \
+ /usr/include/features.h /usr/include/i386-linux-gnu/bits/predefs.h \
+ /usr/include/i386-linux-gnu/sys/cdefs.h \
+ /usr/include/i386-linux-gnu/bits/wordsize.h \
+ /usr/include/i386-linux-gnu/gnu/stubs.h \
+ /usr/include/i386-linux-gnu/gnu/stubs-32.h \
+ /usr/lib/gcc/i686-linux-gnu/4.5.4/include/stddef.h \
+ /usr/include/i386-linux-gnu/bits/types.h \
+ /usr/include/i386-linux-gnu/bits/typesizes.h /usr/include/libio.h \
+ /usr/include/_G_config.h /usr/include/wchar.h \
+ /usr/lib/gcc/i686-linux-gnu/4.5.4/include/stdarg.h \
+ /usr/include/i386-linux-gnu/bits/stdio_lim.h \
+ /usr/include/i386-linux-gnu/bits/sys_errlist.h /usr/include/stdlib.h \
+ /usr/include/i386-linux-gnu/bits/waitflags.h \
+ /usr/include/i386-linux-gnu/bits/waitstatus.h /usr/include/endian.h \
+ /usr/include/i386-linux-gnu/bits/endian.h \
+ /usr/include/i386-linux-gnu/bits/byteswap.h \
+ /usr/include/i386-linux-gnu/sys/types.h /usr/include/time.h \
+ /usr/include/i386-linux-gnu/sys/select.h \
+ /usr/include/i386-linux-gnu/bits/select.h \
+ /usr/include/i386-linux-gnu/bits/sigset.h \
+ /usr/include/i386-linux-gnu/bits/time.h \
+ /usr/include/i386-linux-gnu/sys/sysmacros.h \
+ /usr/include/i386-linux-gnu/bits/pthreadtypes.h /usr/include/alloca.h \
+ ccan/list/list.h /usr/lib/gcc/i686-linux-gnu/4.5.4/include/stdbool.h \
+ /usr/include/assert.h ccan/container_of/container_of.h config.h \
+ ccan/check_type/check_type.h
diff --git a/lib/ccan/list/list.h b/lib/ccan/list/list.h
new file mode 100644
index 0000000000..0091ea4b65
--- /dev/null
+++ b/lib/ccan/list/list.h
@@ -0,0 +1,469 @@
+/* Licensed under LGPLv2.1+ - see LICENSE file for details */
+#ifndef CCAN_LIST_H
+#define CCAN_LIST_H
+#include <stdbool.h>
+#include <assert.h>
+#include <ccan/container_of/container_of.h>
+#include <ccan/check_type/check_type.h>
+
+/**
+ * struct list_node - an entry in a doubly-linked list
+ * @next: next entry (self if empty)
+ * @prev: previous entry (self if empty)
+ *
+ * This is used as an entry in a linked list.
+ * Example:
+ * struct child {
+ * const char *name;
+ * // Linked list of all us children.
+ * struct list_node list;
+ * };
+ */
+struct list_node
+{
+ struct list_node *next, *prev;
+};
+
+/**
+ * struct list_head - the head of a doubly-linked list
+ * @h: the list_head (containing next and prev pointers)
+ *
+ * This is used as the head of a linked list.
+ * Example:
+ * struct parent {
+ * const char *name;
+ * struct list_head children;
+ * unsigned int num_children;
+ * };
+ */
+struct list_head
+{
+ struct list_node n;
+};
+
+/**
+ * list_check - check head of a list for consistency
+ * @h: the list_head
+ * @abortstr: the location to print on aborting, or NULL.
+ *
+ * Because list_nodes have redundant information, consistency checking between
+ * the back and forward links can be done. This is useful as a debugging check.
+ * If @abortstr is non-NULL, that will be printed in a diagnostic if the list
+ * is inconsistent, and the function will abort.
+ *
+ * Returns the list head if the list is consistent, NULL if not (it
+ * can never return NULL if @abortstr is set).
+ *
+ * See also: list_check_node()
+ *
+ * Example:
+ * static void dump_parent(struct parent *p)
+ * {
+ * struct child *c;
+ *
+ * printf("%s (%u children):\n", p->name, p->num_children);
+ * list_check(&p->children, "bad child list");
+ * list_for_each(&p->children, c, list)
+ * printf(" -> %s\n", c->name);
+ * }
+ */
+struct list_head *list_check(const struct list_head *h, const char *abortstr);
+
+/**
+ * list_check_node - check node of a list for consistency
+ * @n: the list_node
+ * @abortstr: the location to print on aborting, or NULL.
+ *
+ * Check consistency of the list node is in (it must be in one).
+ *
+ * See also: list_check()
+ *
+ * Example:
+ * static void dump_child(const struct child *c)
+ * {
+ * list_check_node(&c->list, "bad child list");
+ * printf("%s\n", c->name);
+ * }
+ */
+struct list_node *list_check_node(const struct list_node *n,
+ const char *abortstr);
+
+#ifdef CCAN_LIST_DEBUG
+#define list_debug(h) list_check((h), __func__)
+#define list_debug_node(n) list_check_node((n), __func__)
+#else
+#define list_debug(h) (h)
+#define list_debug_node(n) (n)
+#endif
+
+/**
+ * LIST_HEAD_INIT - initializer for an empty list_head
+ * @name: the name of the list.
+ *
+ * Explicit initializer for an empty list.
+ *
+ * See also:
+ * LIST_HEAD, list_head_init()
+ *
+ * Example:
+ * static struct list_head my_list = LIST_HEAD_INIT(my_list);
+ */
+#define LIST_HEAD_INIT(name) { { &name.n, &name.n } }
+
+/**
+ * LIST_HEAD - define and initialize an empty list_head
+ * @name: the name of the list.
+ *
+ * The LIST_HEAD macro defines a list_head and initializes it to an empty
+ * list. It can be prepended by "static" to define a static list_head.
+ *
+ * See also:
+ * LIST_HEAD_INIT, list_head_init()
+ *
+ * Example:
+ * static LIST_HEAD(my_global_list);
+ */
+#define LIST_HEAD(name) \
+ struct list_head name = LIST_HEAD_INIT(name)
+
+/**
+ * list_head_init - initialize a list_head
+ * @h: the list_head to set to the empty list
+ *
+ * Example:
+ * ...
+ * struct parent *parent = malloc(sizeof(*parent));
+ *
+ * list_head_init(&parent->children);
+ * parent->num_children = 0;
+ */
+static inline void list_head_init(struct list_head *h)
+{
+ h->n.next = h->n.prev = &h->n;
+}
+
+/**
+ * list_add - add an entry at the start of a linked list.
+ * @h: the list_head to add the node to
+ * @n: the list_node to add to the list.
+ *
+ * The list_node does not need to be initialized; it will be overwritten.
+ * Example:
+ * struct child *child = malloc(sizeof(*child));
+ *
+ * child->name = "marvin";
+ * list_add(&parent->children, &child->list);
+ * parent->num_children++;
+ */
+static inline void list_add(struct list_head *h, struct list_node *n)
+{
+ n->next = h->n.next;
+ n->prev = &h->n;
+ h->n.next->prev = n;
+ h->n.next = n;
+ (void)list_debug(h);
+}
+
+/**
+ * list_add_tail - add an entry at the end of a linked list.
+ * @h: the list_head to add the node to
+ * @n: the list_node to add to the list.
+ *
+ * The list_node does not need to be initialized; it will be overwritten.
+ * Example:
+ * list_add_tail(&parent->children, &child->list);
+ * parent->num_children++;
+ */
+static inline void list_add_tail(struct list_head *h, struct list_node *n)
+{
+ n->next = &h->n;
+ n->prev = h->n.prev;
+ h->n.prev->next = n;
+ h->n.prev = n;
+ (void)list_debug(h);
+}
+
+/**
+ * list_empty - is a list empty?
+ * @h: the list_head
+ *
+ * If the list is empty, returns true.
+ *
+ * Example:
+ * assert(list_empty(&parent->children) == (parent->num_children == 0));
+ */
+static inline bool list_empty(const struct list_head *h)
+{
+ (void)list_debug(h);
+ return h->n.next == &h->n;
+}
+
+/**
+ * list_del - delete an entry from an (unknown) linked list.
+ * @n: the list_node to delete from the list.
+ *
+ * Note that this leaves @n in an undefined state; it can be added to
+ * another list, but not deleted again.
+ *
+ * See also:
+ * list_del_from()
+ *
+ * Example:
+ * list_del(&child->list);
+ * parent->num_children--;
+ */
+static inline void list_del(struct list_node *n)
+{
+ (void)list_debug_node(n);
+ n->next->prev = n->prev;
+ n->prev->next = n->next;
+#ifdef CCAN_LIST_DEBUG
+ /* Catch use-after-del. */
+ n->next = n->prev = NULL;
+#endif
+}
+
+/**
+ * list_del_from - delete an entry from a known linked list.
+ * @h: the list_head the node is in.
+ * @n: the list_node to delete from the list.
+ *
+ * This explicitly indicates which list a node is expected to be in,
+ * which is better documentation and can catch more bugs.
+ *
+ * See also: list_del()
+ *
+ * Example:
+ * list_del_from(&parent->children, &child->list);
+ * parent->num_children--;
+ */
+static inline void list_del_from(struct list_head *h, struct list_node *n)
+{
+#ifdef CCAN_LIST_DEBUG
+ {
+ /* Thorough check: make sure it was in list! */
+ struct list_node *i;
+ for (i = h->n.next; i != n; i = i->next)
+ assert(i != &h->n);
+ }
+#endif /* CCAN_LIST_DEBUG */
+
+ /* Quick test that catches a surprising number of bugs. */
+ assert(!list_empty(h));
+ list_del(n);
+}
+
+/**
+ * list_entry - convert a list_node back into the structure containing it.
+ * @n: the list_node
+ * @type: the type of the entry
+ * @member: the list_node member of the type
+ *
+ * Example:
+ * // First list entry is children.next; convert back to child.
+ * child = list_entry(parent->children.n.next, struct child, list);
+ *
+ * See Also:
+ * list_top(), list_for_each()
+ */
+#define list_entry(n, type, member) container_of(n, type, member)
+
+/**
+ * list_top - get the first entry in a list
+ * @h: the list_head
+ * @type: the type of the entry
+ * @member: the list_node member of the type
+ *
+ * If the list is empty, returns NULL.
+ *
+ * Example:
+ * struct child *first;
+ * first = list_top(&parent->children, struct child, list);
+ */
+#define list_top(h, type, member) \
+ ((type *)list_top_((h), list_off_(type, member)))
+
+static inline const void *list_top_(const struct list_head *h, size_t off)
+{
+ if (list_empty(h))
+ return NULL;
+ return (const char *)h->n.next - off;
+}
+
+/**
+ * list_tail - get the last entry in a list
+ * @h: the list_head
+ * @type: the type of the entry
+ * @member: the list_node member of the type
+ *
+ * If the list is empty, returns NULL.
+ *
+ * Example:
+ * struct child *last;
+ * last = list_tail(&parent->children, struct child, list);
+ */
+#define list_tail(h, type, member) \
+ ((type *)list_tail_((h), list_off_(type, member)))
+
+static inline const void *list_tail_(const struct list_head *h, size_t off)
+{
+ if (list_empty(h))
+ return NULL;
+ return (const char *)h->n.prev - off;
+}
+
+/**
+ * list_for_each - iterate through a list.
+ * @h: the list_head (warning: evaluated multiple times!)
+ * @i: the structure containing the list_node
+ * @member: the list_node member of the structure
+ *
+ * This is a convenient wrapper to iterate @i over the entire list. It's
+ * a for loop, so you can break and continue as normal.
+ *
+ * Example:
+ * list_for_each(&parent->children, child, list)
+ * printf("Name: %s\n", child->name);
+ */
+#define list_for_each(h, i, member) \
+ list_for_each_off(h, i, list_off_var_(i, member))
+
+/**
+ * list_for_each_rev - iterate through a list backwards.
+ * @h: the list_head
+ * @i: the structure containing the list_node
+ * @member: the list_node member of the structure
+ *
+ * This is a convenient wrapper to iterate @i over the entire list. It's
+ * a for loop, so you can break and continue as normal.
+ *
+ * Example:
+ * list_for_each_rev(&parent->children, child, list)
+ * printf("Name: %s\n", child->name);
+ */
+#define list_for_each_rev(h, i, member) \
+ for (i = container_of_var(list_debug(h)->n.prev, i, member); \
+ &i->member != &(h)->n; \
+ i = container_of_var(i->member.prev, i, member))
+
+/**
+ * list_for_each_safe - iterate through a list, maybe during deletion
+ * @h: the list_head
+ * @i: the structure containing the list_node
+ * @nxt: the structure containing the list_node
+ * @member: the list_node member of the structure
+ *
+ * This is a convenient wrapper to iterate @i over the entire list. It's
+ * a for loop, so you can break and continue as normal. The extra variable
+ * @nxt is used to hold the next element, so you can delete @i from the list.
+ *
+ * Example:
+ * struct child *next;
+ * list_for_each_safe(&parent->children, child, next, list) {
+ * list_del(&child->list);
+ * parent->num_children--;
+ * }
+ */
+#define list_for_each_safe(h, i, nxt, member) \
+ list_for_each_safe_off(h, i, nxt, list_off_var_(i, member))
+
+/**
+ * list_for_each_off - iterate through a list of memory regions.
+ * @h: the list_head
+ * @i: the pointer to a memory region wich contains list node data.
+ * @off: offset(relative to @i) at which list node data resides.
+ *
+ * This is a low-level wrapper to iterate @i over the entire list, used to
+ * implement all oher, more high-level, for-each constructs. It's a for loop,
+ * so you can break and continue as normal.
+ *
+ * WARNING! Being the low-level macro that it is, this wrapper doesn't know
+ * nor care about the type of @i. The only assumtion made is that @i points
+ * to a chunk of memory that at some @offset, relative to @i, contains a
+ * properly filled `struct node_list' which in turn contains pointers to
+ * memory chunks and it's turtles all the way down. Whith all that in mind
+ * remember that given the wrong pointer/offset couple this macro will
+ * happilly churn all you memory untill SEGFAULT stops it, in other words
+ * caveat emptor.
+ *
+ * It is worth mentioning that one of legitimate use-cases for that wrapper
+ * is operation on opaque types with known offset for `struct list_node'
+ * member(preferably 0), because it allows you not to disclose the type of
+ * @i.
+ *
+ * Example:
+ * list_for_each_off(&parent->children, child,
+ * offsetof(struct child, list))
+ * printf("Name: %s\n", child->name);
+ */
+#define list_for_each_off(h, i, off) \
+ for (i = list_node_to_off_(list_debug(h)->n.next, (off)); \
+ list_node_from_off_((void *)i, (off)) != &(h)->n; \
+ i = list_node_to_off_(list_node_from_off_((void *)i, (off))->next, \
+ (off)))
+
+/**
+ * list_for_each_safe_off - iterate through a list of memory regions, maybe
+ * during deletion
+ * @h: the list_head
+ * @i: the pointer to a memory region wich contains list node data.
+ * @nxt: the structure containing the list_node
+ * @off: offset(relative to @i) at which list node data resides.
+ *
+ * For details see `list_for_each_off' and `list_for_each_safe'
+ * descriptions.
+ *
+ * Example:
+ * list_for_each_safe_off(&parent->children, child,
+ * next, offsetof(struct child, list))
+ * printf("Name: %s\n", child->name);
+ */
+#define list_for_each_safe_off(h, i, nxt, off) \
+ for (i = list_node_to_off_(list_debug(h)->n.next, (off)), \
+ nxt = list_node_to_off_(list_node_from_off_(i, (off))->next, \
+ (off)); \
+ list_node_from_off_(i, (off)) != &(h)->n; \
+ i = nxt, \
+ nxt = list_node_to_off_(list_node_from_off_(i, (off))->next, \
+ (off)))
+
+
+/* Other -off variants. */
+#define list_entry_off(n, type, off) \
+ ((type *)list_node_from_off_((n), (off)))
+
+#define list_head_off(h, type, off) \
+ ((type *)list_head_off((h), (off)))
+
+#define list_tail_off(h, type, off) \
+ ((type *)list_tail_((h), (off)))
+
+#define list_add_off(h, n, off) \
+ list_add((h), list_node_from_off_((n), (off)))
+
+#define list_del_off(n, off) \
+ list_del(list_node_from_off_((n), (off)))
+
+#define list_del_from_off(h, n, off) \
+ list_del_from(h, list_node_from_off_((n), (off)))
+
+/* Offset helper functions so we only single-evaluate. */
+static inline void *list_node_to_off_(struct list_node *node, size_t off)
+{
+ return (void *)((char *)node - off);
+}
+static inline struct list_node *list_node_from_off_(void *ptr, size_t off)
+{
+ return (struct list_node *)((char *)ptr + off);
+}
+
+/* Get the offset of the member, but make sure it's a list_node. */
+#define list_off_(type, member) \
+ (container_off(type, member) + \
+ check_type(((type *)0)->member, struct list_node))
+
+#define list_off_var_(var, member) \
+ (container_off_var(var, member) + \
+ check_type(var->member, struct list_node))
+
+#endif /* CCAN_LIST_H */
diff --git a/lib/ccan/list/test/compile_ok-constant.c b/lib/ccan/list/test/compile_ok-constant.c
new file mode 100644
index 0000000000..c57cdadc31
--- /dev/null
+++ b/lib/ccan/list/test/compile_ok-constant.c
@@ -0,0 +1,49 @@
+#include <ccan/list/list.h>
+#include <ccan/tap/tap.h>
+#include <ccan/list/list.c>
+#include <stdbool.h>
+#include <stdio.h>
+
+struct child {
+ const char *name;
+ struct list_node list;
+};
+
+static bool children(const struct list_head *list)
+{
+ return !list_empty(list);
+}
+
+static const struct child *first_child(const struct list_head *list)
+{
+ return list_top(list, struct child, list);
+}
+
+static const struct child *last_child(const struct list_head *list)
+{
+ return list_tail(list, struct child, list);
+}
+
+static void check_children(const struct list_head *list)
+{
+ list_check(list, "bad child list");
+}
+
+static void print_children(const struct list_head *list)
+{
+ const struct child *c;
+ list_for_each(list, c, list)
+ printf("%s\n", c->name);
+}
+
+int main(void)
+{
+ LIST_HEAD(h);
+
+ children(&h);
+ first_child(&h);
+ last_child(&h);
+ check_children(&h);
+ print_children(&h);
+ return 0;
+}
diff --git a/lib/ccan/list/test/helper.c b/lib/ccan/list/test/helper.c
new file mode 100644
index 0000000000..8903ac1738
--- /dev/null
+++ b/lib/ccan/list/test/helper.c
@@ -0,0 +1,54 @@
+#include <stdlib.h>
+#include <stdbool.h>
+#include <time.h>
+
+#include <ccan/list/list.h>
+#include "helper.h"
+
+#define ANSWER_TO_THE_ULTIMATE_QUESTION_OF_LIFE_THE_UNIVERSE_AND_EVERYTHING \
+ (42)
+
+struct opaque {
+ struct list_node list;
+ size_t secret_offset;
+ char secret_drawer[42];
+};
+
+static bool not_randomized = true;
+
+struct opaque *create_opaque_blob(void)
+{
+ struct opaque *blob = calloc(1, sizeof(struct opaque));
+
+ if (not_randomized) {
+ srandom((int)time(NULL));
+ not_randomized = false;
+ }
+
+ blob->secret_offset = random() % (sizeof(blob->secret_drawer));
+ blob->secret_drawer[blob->secret_offset] =
+ ANSWER_TO_THE_ULTIMATE_QUESTION_OF_LIFE_THE_UNIVERSE_AND_EVERYTHING;
+
+ return blob;
+}
+
+bool if_blobs_know_the_secret(struct opaque *blob)
+{
+ bool answer = true;
+ int i;
+ for (i = 0; i < sizeof(blob->secret_drawer) /
+ sizeof(blob->secret_drawer[0]); i++)
+ if (i != blob->secret_offset)
+ answer = answer && (blob->secret_drawer[i] == 0);
+ else
+ answer = answer &&
+ (blob->secret_drawer[blob->secret_offset] ==
+ ANSWER_TO_THE_ULTIMATE_QUESTION_OF_LIFE_THE_UNIVERSE_AND_EVERYTHING);
+
+ return answer;
+}
+
+void destroy_opaque_blob(struct opaque *blob)
+{
+ free(blob);
+}
diff --git a/lib/ccan/list/test/helper.h b/lib/ccan/list/test/helper.h
new file mode 100644
index 0000000000..a09a3a997b
--- /dev/null
+++ b/lib/ccan/list/test/helper.h
@@ -0,0 +1,7 @@
+/* These are in a separate C file so we can test undefined structures. */
+struct opaque;
+typedef struct opaque opaque_t;
+
+opaque_t *create_opaque_blob(void);
+bool if_blobs_know_the_secret(opaque_t *blob);
+void destroy_opaque_blob(opaque_t *blob);
diff --git a/lib/ccan/list/test/run-check-corrupt.c b/lib/ccan/list/test/run-check-corrupt.c
new file mode 100644
index 0000000000..5dd9f9cc83
--- /dev/null
+++ b/lib/ccan/list/test/run-check-corrupt.c
@@ -0,0 +1,89 @@
+#include <setjmp.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#include <err.h>
+
+/* We don't actually want it to exit... */
+static jmp_buf aborted;
+#define abort() longjmp(aborted, 1)
+
+#define fprintf my_fprintf
+static char printf_buffer[1000];
+
+static int my_fprintf(FILE *stream, const char *format, ...)
+{
+ va_list ap;
+ int ret;
+ va_start(ap, format);
+ ret = vsprintf(printf_buffer, format, ap);
+ va_end(ap);
+ return ret;
+}
+
+#include <ccan/list/list.h>
+#include <ccan/tap/tap.h>
+#include <ccan/list/list.c>
+
+int main(int argc, char *argv[])
+{
+ struct list_head list;
+ struct list_node n1;
+ char expect[100];
+
+ plan_tests(9);
+ /* Empty list. */
+ list.n.next = &list.n;
+ list.n.prev = &list.n;
+ ok1(list_check(&list, NULL) == &list);
+
+ /* Bad back ptr */
+ list.n.prev = &n1;
+ /* Non-aborting version. */
+ ok1(list_check(&list, NULL) == NULL);
+
+ /* Aborting version. */
+ sprintf(expect, "test message: prev corrupt in node %p (0) of %p\n",
+ &list, &list);
+ if (setjmp(aborted) == 0) {
+ list_check(&list, "test message");
+ fail("list_check on empty with bad back ptr didn't fail!");
+ } else {
+ ok1(strcmp(printf_buffer, expect) == 0);
+ }
+
+ /* n1 in list. */
+ list.n.next = &n1;
+ list.n.prev = &n1;
+ n1.prev = &list.n;
+ n1.next = &list.n;
+ ok1(list_check(&list, NULL) == &list);
+ ok1(list_check_node(&n1, NULL) == &n1);
+
+ /* Bad back ptr */
+ n1.prev = &n1;
+ ok1(list_check(&list, NULL) == NULL);
+ ok1(list_check_node(&n1, NULL) == NULL);
+
+ /* Aborting version. */
+ sprintf(expect, "test message: prev corrupt in node %p (1) of %p\n",
+ &n1, &list);
+ if (setjmp(aborted) == 0) {
+ list_check(&list, "test message");
+ fail("list_check on n1 bad back ptr didn't fail!");
+ } else {
+ ok1(strcmp(printf_buffer, expect) == 0);
+ }
+
+ sprintf(expect, "test message: prev corrupt in node %p (0) of %p\n",
+ &n1, &n1);
+ if (setjmp(aborted) == 0) {
+ list_check_node(&n1, "test message");
+ fail("list_check_node on n1 bad back ptr didn't fail!");
+ } else {
+ ok1(strcmp(printf_buffer, expect) == 0);
+ }
+
+ return exit_status();
+}
diff --git a/lib/ccan/list/test/run-list_del_from-assert.c b/lib/ccan/list/test/run-list_del_from-assert.c
new file mode 100644
index 0000000000..05d6cad62c
--- /dev/null
+++ b/lib/ccan/list/test/run-list_del_from-assert.c
@@ -0,0 +1,36 @@
+#define CCAN_LIST_DEBUG 1
+#include <ccan/list/list.h>
+#include <ccan/tap/tap.h>
+#include <ccan/list/list.c>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <signal.h>
+
+int main(int argc, char *argv[])
+{
+ struct list_head list1, list2;
+ struct list_node n1, n2, n3;
+ pid_t child;
+ int status;
+
+ plan_tests(1);
+ list_head_init(&list1);
+ list_head_init(&list2);
+ list_add(&list1, &n1);
+ list_add(&list2, &n2);
+ list_add_tail(&list2, &n3);
+
+ child = fork();
+ if (child) {
+ wait(&status);
+ } else {
+ /* This should abort. */
+ list_del_from(&list1, &n3);
+ exit(0);
+ }
+
+ ok1(WIFSIGNALED(status) && WTERMSIG(status) == SIGABRT);
+ list_del_from(&list2, &n3);
+ return exit_status();
+}
diff --git a/lib/ccan/list/test/run-single-eval.c b/lib/ccan/list/test/run-single-eval.c
new file mode 100644
index 0000000000..f90eed357a
--- /dev/null
+++ b/lib/ccan/list/test/run-single-eval.c
@@ -0,0 +1,168 @@
+/* Make sure macros only evaluate their args once. */
+#include <ccan/list/list.h>
+#include <ccan/tap/tap.h>
+#include <ccan/list/list.c>
+
+struct parent {
+ const char *name;
+ struct list_head children;
+ unsigned int num_children;
+ int eval_count;
+};
+
+struct child {
+ const char *name;
+ struct list_node list;
+};
+
+static LIST_HEAD(static_list);
+
+#define ref(obj, counter) ((counter)++, (obj))
+
+int main(int argc, char *argv[])
+{
+ struct parent parent;
+ struct child c1, c2, c3, *c, *n;
+ unsigned int i;
+ unsigned int static_count = 0, parent_count = 0, list_count = 0,
+ node_count = 0;
+ struct list_head list = LIST_HEAD_INIT(list);
+
+ plan_tests(74);
+ /* Test LIST_HEAD, LIST_HEAD_INIT, list_empty and check_list */
+ ok1(list_empty(ref(&static_list, static_count)));
+ ok1(static_count == 1);
+ ok1(list_check(ref(&static_list, static_count), NULL));
+ ok1(static_count == 2);
+ ok1(list_empty(ref(&list, list_count)));
+ ok1(list_count == 1);
+ ok1(list_check(ref(&list, list_count), NULL));
+ ok1(list_count == 2);
+
+ parent.num_children = 0;
+ list_head_init(ref(&parent.children, parent_count));
+ ok1(parent_count == 1);
+ /* Test list_head_init */
+ ok1(list_empty(ref(&parent.children, parent_count)));
+ ok1(parent_count == 2);
+ ok1(list_check(ref(&parent.children, parent_count), NULL));
+ ok1(parent_count == 3);
+
+ c2.name = "c2";
+ list_add(ref(&parent.children, parent_count), &c2.list);
+ ok1(parent_count == 4);
+ /* Test list_add and !list_empty. */
+ ok1(!list_empty(ref(&parent.children, parent_count)));
+ ok1(parent_count == 5);
+ ok1(c2.list.next == &parent.children.n);
+ ok1(c2.list.prev == &parent.children.n);
+ ok1(parent.children.n.next == &c2.list);
+ ok1(parent.children.n.prev == &c2.list);
+ /* Test list_check */
+ ok1(list_check(ref(&parent.children, parent_count), NULL));
+ ok1(parent_count == 6);
+
+ c1.name = "c1";
+ list_add(ref(&parent.children, parent_count), &c1.list);
+ ok1(parent_count == 7);
+ /* Test list_add and !list_empty. */
+ ok1(!list_empty(ref(&parent.children, parent_count)));
+ ok1(parent_count == 8);
+ ok1(c2.list.next == &parent.children.n);
+ ok1(c2.list.prev == &c1.list);
+ ok1(parent.children.n.next == &c1.list);
+ ok1(parent.children.n.prev == &c2.list);
+ ok1(c1.list.next == &c2.list);
+ ok1(c1.list.prev == &parent.children.n);
+ /* Test list_check */
+ ok1(list_check(ref(&parent.children, parent_count), NULL));
+ ok1(parent_count == 9);
+
+ c3.name = "c3";
+ list_add_tail(ref(&parent.children, parent_count), &c3.list);
+ ok1(parent_count == 10);
+ /* Test list_add_tail and !list_empty. */
+ ok1(!list_empty(ref(&parent.children, parent_count)));
+ ok1(parent_count == 11);
+ ok1(parent.children.n.next == &c1.list);
+ ok1(parent.children.n.prev == &c3.list);
+ ok1(c1.list.next == &c2.list);
+ ok1(c1.list.prev == &parent.children.n);
+ ok1(c2.list.next == &c3.list);
+ ok1(c2.list.prev == &c1.list);
+ ok1(c3.list.next == &parent.children.n);
+ ok1(c3.list.prev == &c2.list);
+ /* Test list_check */
+ ok1(list_check(ref(&parent.children, parent_count), NULL));
+ ok1(parent_count == 12);
+
+ /* Test list_check_node */
+ ok1(list_check_node(&c1.list, NULL));
+ ok1(list_check_node(&c2.list, NULL));
+ ok1(list_check_node(&c3.list, NULL));
+
+ /* Test list_top */
+ ok1(list_top(ref(&parent.children, parent_count), struct child, list) == &c1);
+ ok1(parent_count == 13);
+
+ /* Test list_tail */
+ ok1(list_tail(ref(&parent.children, parent_count), struct child, list) == &c3);
+ ok1(parent_count == 14);
+
+ /* Test list_for_each. */
+ i = 0;
+ list_for_each(&parent.children, c, list) {
+ switch (i++) {
+ case 0:
+ ok1(c == &c1);
+ break;
+ case 1:
+ ok1(c == &c2);
+ break;
+ case 2:
+ ok1(c == &c3);
+ break;
+ }
+ if (i > 2)
+ break;
+ }
+ ok1(i == 3);
+
+ /* Test list_for_each_safe, list_del and list_del_from. */
+ i = 0;
+ list_for_each_safe(&parent.children, c, n, list) {
+ switch (i++) {
+ case 0:
+ ok1(c == &c1);
+ list_del(ref(&c->list, node_count));
+ ok1(node_count == 1);
+ break;
+ case 1:
+ ok1(c == &c2);
+ list_del_from(ref(&parent.children, parent_count),
+ ref(&c->list, node_count));
+ ok1(node_count == 2);
+ break;
+ case 2:
+ ok1(c == &c3);
+ list_del_from(ref(&parent.children, parent_count),
+ ref(&c->list, node_count));
+ ok1(node_count == 3);
+ break;
+ }
+ ok1(list_check(ref(&parent.children, parent_count), NULL));
+ if (i > 2)
+ break;
+ }
+ ok1(i == 3);
+ ok1(parent_count == 19);
+ ok1(list_empty(ref(&parent.children, parent_count)));
+ ok1(parent_count == 20);
+
+ /* Test list_top/list_tail on empty list. */
+ ok1(list_top(ref(&parent.children, parent_count), struct child, list) == NULL);
+ ok1(parent_count == 21);
+ ok1(list_tail(ref(&parent.children, parent_count), struct child, list) == NULL);
+ ok1(parent_count == 22);
+ return exit_status();
+}
diff --git a/lib/ccan/list/test/run-with-debug.c b/lib/ccan/list/test/run-with-debug.c
new file mode 100644
index 0000000000..d0902421f1
--- /dev/null
+++ b/lib/ccan/list/test/run-with-debug.c
@@ -0,0 +1,3 @@
+/* Just like run.c, but with all debug checks enabled. */
+#define CCAN_LIST_DEBUG 1
+#include <ccan/list/test/run.c>
diff --git a/lib/ccan/list/test/run.c b/lib/ccan/list/test/run.c
new file mode 100644
index 0000000000..952a0e15e6
--- /dev/null
+++ b/lib/ccan/list/test/run.c
@@ -0,0 +1,200 @@
+#include <ccan/list/list.h>
+#include <ccan/tap/tap.h>
+#include <ccan/list/list.c>
+#include "helper.h"
+
+struct parent {
+ const char *name;
+ struct list_head children;
+ unsigned int num_children;
+};
+
+struct child {
+ const char *name;
+ struct list_node list;
+};
+
+static LIST_HEAD(static_list);
+
+int main(int argc, char *argv[])
+{
+ struct parent parent;
+ struct child c1, c2, c3, *c, *n;
+ unsigned int i;
+ struct list_head list = LIST_HEAD_INIT(list);
+ opaque_t *q, *nq;
+ struct list_head opaque_list = LIST_HEAD_INIT(opaque_list);
+
+ plan_tests(65);
+ /* Test LIST_HEAD, LIST_HEAD_INIT, list_empty and check_list */
+ ok1(list_empty(&static_list));
+ ok1(list_check(&static_list, NULL));
+ ok1(list_empty(&list));
+ ok1(list_check(&list, NULL));
+
+ parent.num_children = 0;
+ list_head_init(&parent.children);
+ /* Test list_head_init */
+ ok1(list_empty(&parent.children));
+ ok1(list_check(&parent.children, NULL));
+
+ c2.name = "c2";
+ list_add(&parent.children, &c2.list);
+ /* Test list_add and !list_empty. */
+ ok1(!list_empty(&parent.children));
+ ok1(c2.list.next == &parent.children.n);
+ ok1(c2.list.prev == &parent.children.n);
+ ok1(parent.children.n.next == &c2.list);
+ ok1(parent.children.n.prev == &c2.list);
+ /* Test list_check */
+ ok1(list_check(&parent.children, NULL));
+
+ c1.name = "c1";
+ list_add(&parent.children, &c1.list);
+ /* Test list_add and !list_empty. */
+ ok1(!list_empty(&parent.children));
+ ok1(c2.list.next == &parent.children.n);
+ ok1(c2.list.prev == &c1.list);
+ ok1(parent.children.n.next == &c1.list);
+ ok1(parent.children.n.prev == &c2.list);
+ ok1(c1.list.next == &c2.list);
+ ok1(c1.list.prev == &parent.children.n);
+ /* Test list_check */
+ ok1(list_check(&parent.children, NULL));
+
+ c3.name = "c3";
+ list_add_tail(&parent.children, &c3.list);
+ /* Test list_add_tail and !list_empty. */
+ ok1(!list_empty(&parent.children));
+ ok1(parent.children.n.next == &c1.list);
+ ok1(parent.children.n.prev == &c3.list);
+ ok1(c1.list.next == &c2.list);
+ ok1(c1.list.prev == &parent.children.n);
+ ok1(c2.list.next == &c3.list);
+ ok1(c2.list.prev == &c1.list);
+ ok1(c3.list.next == &parent.children.n);
+ ok1(c3.list.prev == &c2.list);
+ /* Test list_check */
+ ok1(list_check(&parent.children, NULL));
+
+ /* Test list_check_node */
+ ok1(list_check_node(&c1.list, NULL));
+ ok1(list_check_node(&c2.list, NULL));
+ ok1(list_check_node(&c3.list, NULL));
+
+ /* Test list_top */
+ ok1(list_top(&parent.children, struct child, list) == &c1);
+
+ /* Test list_tail */
+ ok1(list_tail(&parent.children, struct child, list) == &c3);
+
+ /* Test list_for_each. */
+ i = 0;
+ list_for_each(&parent.children, c, list) {
+ switch (i++) {
+ case 0:
+ ok1(c == &c1);
+ break;
+ case 1:
+ ok1(c == &c2);
+ break;
+ case 2:
+ ok1(c == &c3);
+ break;
+ }
+ if (i > 2)
+ break;
+ }
+ ok1(i == 3);
+
+ /* Test list_for_each_rev. */
+ i = 0;
+ list_for_each_rev(&parent.children, c, list) {
+ switch (i++) {
+ case 0:
+ ok1(c == &c3);
+ break;
+ case 1:
+ ok1(c == &c2);
+ break;
+ case 2:
+ ok1(c == &c1);
+ break;
+ }
+ if (i > 2)
+ break;
+ }
+ ok1(i == 3);
+
+ /* Test list_for_each_safe, list_del and list_del_from. */
+ i = 0;
+ list_for_each_safe(&parent.children, c, n, list) {
+ switch (i++) {
+ case 0:
+ ok1(c == &c1);
+ list_del(&c->list);
+ break;
+ case 1:
+ ok1(c == &c2);
+ list_del_from(&parent.children, &c->list);
+ break;
+ case 2:
+ ok1(c == &c3);
+ list_del_from(&parent.children, &c->list);
+ break;
+ }
+ ok1(list_check(&parent.children, NULL));
+ if (i > 2)
+ break;
+ }
+ ok1(i == 3);
+ ok1(list_empty(&parent.children));
+
+ /* Test list_for_each_off. */
+ list_add_tail(&opaque_list,
+ (struct list_node *)create_opaque_blob());
+ list_add_tail(&opaque_list,
+ (struct list_node *)create_opaque_blob());
+ list_add_tail(&opaque_list,
+ (struct list_node *)create_opaque_blob());
+
+ i = 0;
+
+ list_for_each_off(&opaque_list, q, 0) {
+ i++;
+ ok1(if_blobs_know_the_secret(q));
+ }
+ ok1(i == 3);
+
+ /* Test list_for_each_safe_off, list_del_off and list_del_from_off. */
+ i = 0;
+ list_for_each_safe_off(&opaque_list, q, nq, 0) {
+ switch (i++) {
+ case 0:
+ ok1(if_blobs_know_the_secret(q));
+ list_del_off(q, 0);
+ destroy_opaque_blob(q);
+ break;
+ case 1:
+ ok1(if_blobs_know_the_secret(q));
+ list_del_from_off(&opaque_list, q, 0);
+ destroy_opaque_blob(q);
+ break;
+ case 2:
+ ok1(c == &c3);
+ list_del_from_off(&opaque_list, q, 0);
+ destroy_opaque_blob(q);
+ break;
+ }
+ ok1(list_check(&opaque_list, NULL));
+ if (i > 2)
+ break;
+ }
+ ok1(i == 3);
+ ok1(list_empty(&opaque_list));
+
+ /* Test list_top/list_tail on empty list. */
+ ok1(list_top(&parent.children, struct child, list) == NULL);
+ ok1(list_tail(&parent.children, struct child, list) == NULL);
+ return exit_status();
+}