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CURLOPT_PROXY_CAINFO(3)    curl_easy_setopt options    CURLOPT_PROXY_CAINFO(3)




NAME

       CURLOPT_PROXY_CAINFO - path to proxy Certificate Authority (CA) bundle


SYNOPSIS

       #include <curl/curl.h>

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


DESCRIPTION

       This option is for connecting to a HTTPS proxy, not a HTTPS server.

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

       If  CURLOPT_PROXY_SSL_VERIFYPEER(3) is zero and you avoid verifying the
       server's certificate, CURLOPT_PROXY_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  mod-
       ule  (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

       Used with HTTPS proxy


EXAMPLE

       TODO


AVAILABILITY

       Added in 7.52.0

       For  TLS  backends  that  don't  support  certificate  files,  the CUR-
       LOPT_PROXY_CAINFO(3)     option     is      ignored.      Refer      to
       https://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_PROXY_CAPATH(3),     CURLOPT_PROXY_SSL_VERIFYPEER(3),      CUR-
       LOPT_PROXY_SSL_VERIFYHOST(3),    CURLOPT_CAPATH(3),   CURLOPT_SSL_VERI-
       FYPEER(3), CURLOPT_SSL_VERIFYHOST(3),



libcurl 7.52.0                    16 Nov 2016          CURLOPT_PROXY_CAINFO(3)

curl 7.53.0 - Generated Fri Feb 24 08:04:20 CST 2017
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