NAME

       CURLOPT_CAINFO - path to Certificate Authority (CA) bundle

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CAINFO, char *path);

DESCRIPTION

       Pass  a  char * to a zero terminated string naming a file holding one or more certificates
       to verify the peer with.

       If CURLOPT_SSL_VERIFYPEER(3) is zero and you avoid  verifying  the  server's  certificate,
       CURLOPT_CAINFO(3) need not even indicate an accessible file.

       This  option is by default set to the system path where libcurl's cacert bundle is assumed
       to be stored, as established at build time.

       If curl is built against the NSS SSL library, the NSS PEM  PKCS#11  module  (libnsspem.so)
       needs to be available for this option to work properly.

DEFAULT

       Built-in system specific

PROTOCOLS

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

EXAMPLE

       TODO

AVAILABILITY

       For SSL engines that don't support certificate files the CURLOPT_CAINFO option is ignored.
       Refer to http://curl.haxx.se/docs/ssl-compared.html

RETURN VALUE

       Returns  CURLE_OK  if  the  option  is  supported,   CURLE_UNKNOWN_OPTION   if   not,   or
       CURLE_OUT_OF_MEMORY if there was insufficient heap space.

SEE ALSO

       CURLOPT_CAPATH(3), CURLOPT_SSL_VERIFYPEER(3), CURLOPT_SSL_VERIFYHOST(3),