CURLOPT_PROXY_CRLFILE - HTTPS proxy Certificate Revocation List file
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_CRLFILE, char *file);
CURLOPT_PROXY_CRLFILE(3) curl_easy_setopt options CURLOPT_PROXY_CRLFILE(3) NAME CURLOPT_PROXY_CRLFILE - HTTPS proxy Certificate Revocation List file SYNOPSIS #include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_CRLFILE, char *file); DESCRIPTION This option is for connecting to an HTTPS proxy, not an HTTPS server. Pass a char * to a null-terminated string naming a file with the con- catenation of CRL (in PEM format) to use in the certificate validation that occurs during the SSL exchange. When curl is built to use NSS or GnuTLS, there is no way to influence the use of CRL passed to help in the verification process. When libcurl is built with OpenSSL support, X509_V_FLAG_CRL_CHECK and X509_V_FLAG_CRL_CHECK_ALL are both set, requiring CRL check against all the elements of the certificate chain if a CRL file is passed. This option makes sense only when used in combination with the CUR- LOPT_PROXY_SSL_VERIFYPEER(3) option. A specific error code (CURLE_SSL_CRL_BADFILE) is defined with the option. It is returned when the SSL exchange fails because the CRL file cannot be loaded. A failure in certificate verification due to a revo- cation information found in the CRL does not trigger this specific error. The application does not have to keep the string around after setting this option. DEFAULT NULL PROTOCOLS Used with HTTPS proxy. EXAMPLE CURL *curl = curl_easy_init(); if(curl) { curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/"); curl_easy_setopt(curl, CURLOPT_PROXY, "https://localhost:80"); curl_easy_setopt(curl, CURLOPT_PROXY_CRLFILE, "/etc/certs/crl.pem"); ret = curl_easy_perform(curl); curl_easy_cleanup(curl); } AVAILABILITY Added in 7.52.0 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. ATTRIBUTES See attributes(7) for descriptions of the following attributes: +---------------+------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+------------------+ |Availability | web/curl | +---------------+------------------+ |Stability | Uncommitted | +---------------+------------------+ SEE ALSO CURLOPT_PROXY_SSL_VERIFYPEER(3), CURLOPT_PROXY_SSL_VERIFYHOST(3), CUR- LOPT_SSL_VERIFYPEER(3), CURLOPT_SSL_VERIFYHOST(3), NOTES Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source- code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from https://curl.se/down- load/curl-7.83.1.tar.bz2. Further information about this software can be found on the open source community website at http://curl.haxx.se/. libcurl 7.83.1 November 26, 2021 CURLOPT_PROXY_CRLFILE(3)