curlopt_proxy_sslversion(3) [mojave man page]
CURLOPT_PROXY_SSLVERSION(3) curl_easy_setopt options CURLOPT_PROXY_SSLVERSION(3) NAME
CURLOPT_PROXY_SSLVERSION - set preferred proxy TLS/SSL version SYNOPSIS
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_SSLVERSION, long version); DESCRIPTION
Pass a long as parameter to control which version of SSL/TLS to attempt to use when connecting to an HTTPS proxy. Use one of the available defines for this purpose. The available options are: CURL_SSLVERSION_DEFAULT The default action. This will attempt to figure out the remote SSL protocol version. CURL_SSLVERSION_TLSv1 TLSv1.x CURL_SSLVERSION_TLSv1_0 TLSv1.0 CURL_SSLVERSION_TLSv1_1 TLSv1.1 CURL_SSLVERSION_TLSv1_2 TLSv1.2 CURL_SSLVERSION_TLSv1_3 TLSv1.3 CURL_SSLVERSION_MAX_DEFAULT The flag defines maximum supported TLS version as TLSv1.2 or default value from SSL library. Only library NSS currently allows to get maximum supported TLS version. (Added in 7.54.0) CURL_SSLVERSION_MAX_TLSv1_0 The flag defines maximum supported TLS version as TLSv1.0. (Added in 7.54.0) CURL_SSLVERSION_MAX_TLSv1_1 The flag defines maximum supported TLS version as TLSv1.1. (Added in 7.54.0) CURL_SSLVERSION_MAX_TLSv1_2 The flag defines maximum supported TLS version as TLSv1.2. (Added in 7.54.0) CURL_SSLVERSION_MAX_TLSv1_3 The flag defines maximum supported TLS version as TLSv1.3. (Added in 7.54.0) DEFAULT
CURL_SSLVERSION_DEFAULT PROTOCOLS
All EXAMPLE
CURL *curl = curl_easy_init(); if(curl) { curl_easy_setopt(curl, CURLOPT_URL, "https://example.com"); /* ask libcurl to use TLS version 1.0 or later */ curl_easy_setopt(curl, CURLOPT_PROXY_SSLVERSION, CURL_SSLVERSION_TLSv1_1 | CURL_SSLVERSION_MAX_DEFAULT); /* Perform the request */ curl_easy_perform(curl); } AVAILABILITY
Added in 7.52.0 RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. SEE ALSO
CURLOPT_USE_SSL(3), CURLOPT_HTTP_VERSION(3), CURLOPT_IPRESOLVE(3) CURLOPT_SSLVERSION(3), libcurl 7.54.0 December 13, 2016 CURLOPT_PROXY_SSLVERSION(3)
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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 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
Used with HTTPS proxy EXAMPLE
TODO AVAILABILITY
Added in 7.52.0 For TLS backends that don't support certificate files, the CURLOPT_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), CURLOPT_PROXY_SSL_VERIFYHOST(3), CURLOPT_CAPATH(3), CURLOPT_SSL_VERIFYPEER(3), CURLOPT_SSL_VERIFYHOST(3), libcurl 7.54.0 December 21, 2016 CURLOPT_PROXY_CAINFO(3)