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+---
+c: Copyright (C) Daniel Stenberg, <daniel.se>, et al.
+SPDX-License-Identifier: curl
+Title: CURLOPT_COOKIEJAR
+Section: 3
+Source: libcurl
+See-also:
+  - CURLOPT_COOKIE (3)
+  - CURLOPT_COOKIEFILE (3)
+  - CURLOPT_COOKIELIST (3)
+---
+
+# NAME
+
+CURLOPT_COOKIEJAR - filename to store cookies to
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLcode curl_easy_setopt(CURL *handle, CURLOPT_COOKIEJAR, char *filename);
+~~~
+
+# DESCRIPTION
+
+Pass a *filename* as a char *, null-terminated. This makes libcurl write
+all internally known cookies to the specified file when
+curl_easy_cleanup(3) is called. If no cookies are kept in memory at that
+time, no file is created. Specify "-" as filename to instead have the cookies
+written to stdout. Using this option also enables cookies for this session, so
+if you for example follow a redirect it makes matching cookies get sent
+accordingly.
+
+Note that libcurl does not read any cookies from the cookie jar specified with
+this option. To read cookies from a file, use CURLOPT_COOKIEFILE(3).
+
+If the cookie jar file cannot be created or written to (when the
+curl_easy_cleanup(3) is called), libcurl does not and cannot report an
+error for this. Using CURLOPT_VERBOSE(3) or
+CURLOPT_DEBUGFUNCTION(3) displays a warning, but that is the only
+visible feedback you get about this possibly lethal situation.
+
+Cookies are imported in the Set-Cookie format without a domain name are not
+exported by this option.
+
+The application does not have to keep the string around after setting this
+option.
+
+# DEFAULT
+
+NULL
+
+# PROTOCOLS
+
+HTTP
+
+# EXAMPLE
+
+~~~c
+int main(void)
+{
+  CURL *curl = curl_easy_init();
+  if(curl) {
+    CURLcode res;
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/foo.bin");
+
+    /* export cookies to this file when closing the handle */
+    curl_easy_setopt(curl, CURLOPT_COOKIEJAR, "/tmp/cookies.txt");
+
+    res = curl_easy_perform(curl);
+
+    /* close the handle, write the cookies! */
+    curl_easy_cleanup(curl);
+  }
+}
+~~~
+
+# AVAILABILITY
+
+Along with HTTP
+
+# RETURN VALUE
+
+Returns CURLE_OK if HTTP is supported, CURLE_UNKNOWN_OPTION if not, or
+CURLE_OUT_OF_MEMORY if there was insufficient heap space.