curlopt_cainfo(3) [mojave man page]

CURLOPT_CAINFO(3)					     curl_easy_setopt options						 CURLOPT_CAINFO(3)

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 accessi-
       ble 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 prop-
       erly.

       (iOS  and  macOS  only)	If curl is built against Secure Transport, then this option is supported for backward compatibility with other SSL
       engines, but it should not be set. If the option is not set, then curl will use the certificates in the system and user Keychain to  verify
       the peer, which is the preferred method of verifying the peer's certificate chain.

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

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 https://curl.haxx.se/docs/ssl-com-
       pared.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),

libcurl 7.54.0							 December 21, 2016						 CURLOPT_CAINFO(3)

CURLOPT_PROXY_SSL_VERIFYPEER(3) 			     curl_easy_setopt options				   CURLOPT_PROXY_SSL_VERIFYPEER(3)

NAME

       CURLOPT_PROXY_SSL_VERIFYPEER - verify the proxy's SSL certificate

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_SSL_VERIFYPEER, long verify);

DESCRIPTION

       Pass a long as parameter set to 1L to enable or 0L to disable.

       This  option  tells curl to verifies the authenticity of the HTTPS proxy's certificate. A value of 1 means curl verifies; 0 (zero) means it
       doesn't.

       This is the proxy version of CURLOPT_SSL_VERIFYPEER(3) that's used for ordinary HTTPS servers.

       When negotiating a TLS or SSL connection, the server sends a certificate indicating its identity. Curl verifies whether the certificate	is
       authentic,  i.e.  that  you  can trust that the server is who the certificate says it is.  This trust is based on a chain of digital signa-
       tures, rooted in certification authority (CA) certificates you supply.  curl uses a default bundle of CA certificates (the path for that is
       determined at build time) and you can specify alternate certificates with the CURLOPT_PROXY_CAINFO(3) option or the CURLOPT_PROXY_CAPATH(3)
       option.

       When CURLOPT_PROXY_SSL_VERIFYPEER(3) is enabled, and the verification fails to prove that the  certificate  is  authentic,  the	connection
       fails.  When the option is zero, the peer certificate verification succeeds regardless.

       Authenticating  the  certificate is not enough to be sure about the server. You typically also want to ensure that the server is the server
       you mean to be talking to.  Use CURLOPT_PROXY_SSL_VERIFYHOST(3) for that. The check that the host name in the certificate is valid for  the
       host name you're connecting to is done independently of the CURLOPT_PROXY_SSL_VERIFYPEER(3) option.

       WARNING: disabling verification of the certificate allows bad guys to man-in-the-middle the communication without you knowing it. Disabling
       verification makes the communication insecure. Just having encryption on a transfer is not enough as you cannot be sure that you are commu-
       nicating with the correct end-point.

DEFAULT

       1

PROTOCOLS

       All

EXAMPLE

       CURL *curl = curl_easy_init();
       if(curl) {
	 curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");

	 /* Set the default value: strict certificate check please */
	 curl_easy_setopt(curl, CURLOPT_PROXY_SSL_VERIFYPEER, 1L);

	 curl_easy_perform(curl);
       }

AVAILABILITY

       Added in 7.52.0

       If built TLS enabled.

RETURN VALUE

       Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO

       CURLOPT_PROXY_SSL_VERIFYHOST(3), CURLOPT_SSL_VERIFYPEER(3), CURLOPT_SSL_VERIFYHOST(3),

libcurl 7.54.0							 December 16, 2016				   CURLOPT_PROXY_SSL_VERIFYPEER(3)