CURLOPT_COOKIESESSION(3) Library Functions Manual CURLOPT_COOKIESESSION(3)
NAME
CURLOPT_COOKIESESSION - start a new cookie session
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_COOKIESESSION, long init);
DESCRIPTION
Pass a long set to 1 to mark this as a new cookie "session". It forces
libcurl to ignore all cookies it is about to load that are "session
cookies" from the previous session. By default, libcurl always loads all
cookies, independent if they are session cookies or not. Session cookies
are cookies without expiry date and they are meant to be alive and ex-
isting for this "session" only.
A "session" is usually defined in browser land for as long as you have
your browser up, more or less. libcurl needs the application to use this
option to tell it when a new session starts, otherwise it assumes every-
thing is still in the same session.
DEFAULT
0
PROTOCOLS
This functionality affects http only
EXAMPLE
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/foo.bin");
/* new "session", do not load session cookies */
curl_easy_setopt(curl, CURLOPT_COOKIESESSION, 1L);
/* get the (non session) cookies from this file */
curl_easy_setopt(curl, CURLOPT_COOKIEFILE, "/tmp/cookies.txt");
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
}
AVAILABILITY
Added in curl 7.9.7
RETURN VALUE
curl_easy_setopt(3) returns a CURLcode indicating success or error.
CURLE_OK (0) means everything was OK, non-zero means an error occurred,
see libcurl-errors(3).
SEE ALSO
CURLOPT_COOKIE(3), CURLOPT_COOKIEFILE(3), CURLOPT_COOKIEJAR(3)
libcurl 2026-07-12 CURLOPT_COOKIESESSION(3)
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