a8d7d971b1
This is the version of CCAN which CLN was using at the time these were taken. Unfortunately lots of whitespace has been changed, but AFAICT no source changes. Here's the command I ran (with ../ccan checked out to 1ae4c432): ``` make update-ccan CCAN_NEW="alignof array_size build_assert check_type container_of cppmagic likely list mem short_types str structeq take tal tal/str typesafe_cb utf8 endian crypto/sha256" ``` Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: William Casarin <jb55@jb55.com>
44 lines
1000 B
C
44 lines
1000 B
C
/* Licensed under BSD-MIT - 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;
|
|
}
|