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CURLOPT_CAPATH(3)                   libcurl                  CURLOPT_CAPATH(3)


NAME

       CURLOPT_CAPATH - directory holding CA certificates


SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CAPATH, char *capath);


DESCRIPTION

       Pass a char * to a null-terminated string naming a directory holding
       multiple CA certificates to verify the peer with. If libcurl is built
       against OpenSSL, the certificate directory must be prepared using the
       OpenSSL c_rehash utility.  This makes sense only when used in
       combination with the CURLOPT_SSL_VERIFYPEER(3) option.

       The CURLOPT_CAPATH(3) function apparently does not work in Windows due
       to some limitation in OpenSSL.

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

       The default value for this can be figured out with CURLINFO_CAPATH(3).


DEFAULT

       A default path detected at build time.


PROTOCOLS

       All TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.


EXAMPLE

       CURL *curl = curl_easy_init();
       if(curl) {
         curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
         curl_easy_setopt(curl, CURLOPT_CAPATH, "/etc/cert-dir");
         ret = curl_easy_perform(curl);
         curl_easy_cleanup(curl);
       }


AVAILABILITY

       This option is supported by the OpenSSL, GnuTLS and mbedTLS (since
       7.56.0) backends. The NSS backend provides the option only for backward
       compatibility.


RETURN VALUE

       CURLE_OK if supported; or an error such as:

       CURLE_NOT_BUILT_IN - Not supported by the SSL backend

       CURLE_UNKNOWN_OPTION

       CURLE_OUT_OF_MEMORY


SEE ALSO

       CURLOPT_CAINFO(3),  CURLOPT_STDERR(3), CURLOPT_DEBUGFUNCTION(3),
       CURLINFO_CAPATH(3),

ibcurl 8.1.2                    April 26, 2023               CURLOPT_CAPATH(3)

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