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make Curl_llist_insert_next() fail properly if malloc() fails

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This commit is contained in:
Daniel Stenberg 2004-05-10 08:57:37 +00:00
parent e64dacb40e
commit 228fea4628
1 changed files with 11 additions and 4 deletions
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15
lib/llist.c
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@ -55,24 +55,31 @@ Curl_llist_alloc(curl_llist_dtor dtor)
return list; return list;
} }
/*
* Curl_llist_insert_next() returns 1 on success and 0 on failure.
*/
int int
Curl_llist_insert_next(curl_llist *list, curl_llist_element *e, const void *p) Curl_llist_insert_next(curl_llist *list, curl_llist_element *e, const void *p)
{ {
curl_llist_element *ne; curl_llist_element *ne =
(curl_llist_element *) malloc(sizeof(curl_llist_element));
if(!ne)
return 0;
ne = (curl_llist_element *) malloc(sizeof(curl_llist_element));
ne->ptr = (void *) p; ne->ptr = (void *) p;
if (list->size == 0) { if (list->size == 0) {
list->head = ne; list->head = ne;
list->head->prev = NULL; list->head->prev = NULL;
list->head->next = NULL; list->head->next = NULL;
list->tail = ne; list->tail = ne;
} else { }
else {
ne->next = e->next; ne->next = e->next;
ne->prev = e; ne->prev = e;
if (e->next) { if (e->next) {
e->next->prev = ne; e->next->prev = ne;
} else { }
else {
list->tail = ne; list->tail = ne;
} }
e->next = ne; e->next = ne;