CURLOPT_COOKIEFILE(3)      curl_easy_setopt options      CURLOPT_COOKIEFILE(3)

NAME
       CURLOPT_COOKIEFILE - file name 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 file name 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.

       Given an empty or non-existing file or by passing the empty string ("")
       to this option, you can enable the cookie engine without reading any
       initial cookies. If you tell libcurl the file name is "-" (just a
       single minus sign), libcurl will instead read from stdin.

       This option only reads cookies. To make libcurl write cookies to file,
       see _COOKIEJAR&section=3">CURLOPT_COOKIEJAR(3).

       If you use the Set-Cookie file format and don't specify a domain then
       the cookie is not sent since the domain will never match. To address
       this, set a domain in Set-Cookie line (doing that will include sub-
       domains) or preferably: use the Netscape format.

       If you use this option multiple times, you just add more files to read.
       Subsequent files will add more cookies.

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

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

DEFAULT
       NULL

PROTOCOLS
       HTTP

EXAMPLE
       CURL *curl = curl_easy_init();
       if(curl) {
         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");

         ret = curl_easy_perform(curl);

         curl_easy_cleanup(curl);
       }

Cookie file format
       The cookie file format and general cookie concepts in curl are
       described in the HTTP-COOKIES.md file, also hosted online here:
       https://curl.se/docs/http-cookies.html

AVAILABILITY
       As long as HTTP is supported

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

SEE ALSO
       CURLOPT_COOKIE(3), CURLOPT_COOKIEJAR(3),

libcurl 7.77.0                   May 16, 2021            CURLOPT_COOKIEFILE(3)