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move linked list access under lock

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This commit is contained in:
David Zhuang 2025-09-02 17:28:21 -07:00
parent c72bb7aec4
commit 0b16a6a468
1 changed files with 26 additions and 28 deletions
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54
lib/http.c
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@ -2410,45 +2410,43 @@ static CURLcode http_cookies(struct Curl_easy *data,
if(data->cookies || addcookies) {
struct Curl_llist list;
int count = 0;
int rc = 1;
if(data->cookies && data->state.cookie_engine) {
const char *host = data->state.aptr.cookiehost ?
data->state.aptr.cookiehost : data->conn->host.name;
Curl_share_lock(data, CURL_LOCK_DATA_COOKIE, CURL_LOCK_ACCESS_SINGLE);
rc = Curl_cookie_getlist(data, data->conn, host, &list);
Curl_share_unlock(data, CURL_LOCK_DATA_COOKIE);
}
if(!rc) {
struct Curl_llist_node *n;
size_t clen = 8; /* hold the size of the generated Cookie: header */
if (!Curl_cookie_getlist(data, data->conn, host, &list)) {
struct Curl_llist_node *n;
size_t clen = 8; /* hold the size of the generated Cookie: header */
/* loop through all cookies that matched */
for(n = Curl_llist_head(&list); n; n = Curl_node_next(n)) {
struct Cookie *co = Curl_node_elem(n);
if(co->value) {
size_t add;
if(!count) {
result = curlx_dyn_addn(r, STRCONST("Cookie: "));
/* loop through all cookies that matched */
for(n = Curl_llist_head(&list); n; n = Curl_node_next(n)) {
struct Cookie *co = Curl_node_elem(n);
if(co->value) {
size_t add;
if(!count) {
result = curlx_dyn_addn(r, STRCONST("Cookie: "));
if(result)
break;
}
add = strlen(co->name) + strlen(co->value) + 1;
if(clen + add >= MAX_COOKIE_HEADER_LEN) {
infof(data, "Restricted outgoing cookies due to header size, "
"'%s' not sent", co->name);
linecap = TRUE;
break;
}
result = curlx_dyn_addf(r, "%s%s=%s", count ? "; " : "",
co->name, co->value);
if(result)
break;
clen += add + (count ? 2 : 0);
count++;
}
add = strlen(co->name) + strlen(co->value) + 1;
if(clen + add >= MAX_COOKIE_HEADER_LEN) {
infof(data, "Restricted outgoing cookies due to header size, "
"'%s' not sent", co->name);
linecap = TRUE;
break;
}
result = curlx_dyn_addf(r, "%s%s=%s", count ? "; " : "",
co->name, co->value);
if(result)
break;
clen += add + (count ? 2 : 0);
count++;
}
Curl_llist_destroy(&list, NULL);
}
Curl_llist_destroy(&list, NULL);
Curl_share_unlock(data, CURL_LOCK_DATA_COOKIE);
}
if(addcookies && !result && !linecap) {
if(!count)