NAME

       CURLOPT_COOKIEFILE - filename to read cookies from

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_COOKIEFILE, char *filename);

DESCRIPTION

       Pass  a  pointer  to  a null-terminated string as parameter. It should point to the filename of your file
       holding cookie data to read. The cookie data can be in either the old  Netscape  /  Mozilla  cookie  data
       format or just regular HTTP headers (Set-Cookie style) dumped to a file.

       It also enables the cookie engine, making libcurl parse and send cookies on subsequent requests with this
       handle.

       By passing the empty string ("") to this option, you enable the cookie engine without reading any initial
       cookies.  If  you tell libcurl the filename is "-" (just a single minus sign), libcurl instead reads from
       stdin.

       This option only reads cookies. To make libcurl write cookies to file, see CURLOPT_COOKIEJAR(3).

       If you read cookies from a plain HTTP headers file and it does not specify a  domain  in  the  Set-Cookie
       line, then the cookie is not sent since the cookie domain cannot match the target URL's. To address this,
       set a domain in Set-Cookie line (doing that includes subdomains) or preferably: use the Netscape format.

       If you use this option multiple times, you add more files to read cookies from.

       The application does not have to keep the string around after setting this option.

       Setting this option to NULL (since 7.77.0) explicitly disables the cookie engine and clears the  list  of
       files to read cookies from.

SECURITY

       This  document previously mentioned how specifying a non-existing file can also enable the cookie engine.
       While true, we strongly advise against using that method as it is too hard to be  sure  that  files  that
       stay that way in the long run.

DEFAULT

       NULL

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");

           /* get cookies from an existing file */
           curl_easy_setopt(curl, CURLOPT_COOKIEFILE, "/tmp/cookies.txt");

           res = curl_easy_perform(curl);

           curl_easy_cleanup(curl);
         }
       }

Cookie file format

       The   cookie   file   format   and   general   cookie   concepts  in  curl  are  described  online  here:
       https://curl.se/docs/http-cookies.html

AVAILABILITY

       Added in curl 7.1

RETURN VALUE

       Returns CURLE_OK if HTTP is supported, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO

       CURLOPT_COOKIE(3), CURLOPT_COOKIEJAR(3), CURLOPT_COOKIESESSION(3)