Annotation of embedaddon/curl/docs/libcurl/opts/CURLOPT_PROXY_CRLFILE.3, revision 1.1
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! 23: .TH CURLOPT_PROXY_CRLFILE 3 "March 23, 2020" "libcurl 7.70.0" "curl_easy_setopt options"
! 24:
! 25: .SH NAME
! 26: CURLOPT_PROXY_CRLFILE \- specify a proxy Certificate Revocation List file
! 27: .SH SYNOPSIS
! 28: #include <curl/curl.h>
! 29:
! 30: CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_CRLFILE, char *file);
! 31: .SH DESCRIPTION
! 32: This option is for connecting to an HTTPS proxy, not an HTTPS server.
! 33:
! 34: Pass a char * to a zero terminated string naming a \fIfile\fP with the
! 35: concatenation of CRL (in PEM format) to use in the certificate validation that
! 36: occurs during the SSL exchange.
! 37:
! 38: When curl is built to use NSS or GnuTLS, there is no way to influence the use
! 39: of CRL passed to help in the verification process. When libcurl is built with
! 40: OpenSSL support, X509_V_FLAG_CRL_CHECK and X509_V_FLAG_CRL_CHECK_ALL are both
! 41: set, requiring CRL check against all the elements of the certificate chain if
! 42: a CRL file is passed.
! 43:
! 44: This option makes sense only when used in combination with the
! 45: \fICURLOPT_PROXY_SSL_VERIFYPEER(3)\fP option.
! 46:
! 47: A specific error code (\fICURLE_SSL_CRL_BADFILE\fP) is defined with the
! 48: option. It is returned when the SSL exchange fails because the CRL file cannot
! 49: be loaded. A failure in certificate verification due to a revocation
! 50: information found in the CRL does not trigger this specific error.
! 51:
! 52: The application does not have to keep the string around after setting this
! 53: option.
! 54: .SH DEFAULT
! 55: NULL
! 56: .SH PROTOCOLS
! 57: Used with HTTPS proxy.
! 58: .SH EXAMPLE
! 59: .nf
! 60: CURL *curl = curl_easy_init();
! 61: if(curl) {
! 62: curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
! 63: curl_easy_setopt(curl, CURLOPT_PROXY, "https://localhost:80");
! 64: curl_easy_setopt(curl, CURLOPT_PROXY_CRLFILE, "/etc/certs/crl.pem");
! 65: ret = curl_easy_perform(curl);
! 66: curl_easy_cleanup(curl);
! 67: }
! 68: .fi
! 69: .SH AVAILABILITY
! 70: Added in 7.52.0
! 71: .SH RETURN VALUE
! 72: Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or
! 73: CURLE_OUT_OF_MEMORY if there was insufficient heap space.
! 74: .SH "SEE ALSO"
! 75: .BR CURLOPT_PROXY_SSL_VERIFYPEER "(3), " CURLOPT_PROXY_SSL_VERIFYHOST "(3), "
! 76: .BR CURLOPT_SSL_VERIFYPEER "(3), " CURLOPT_SSL_VERIFYHOST "(3), "
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