CURLOPT_PROXY_CAINFO_BLOB - Online Linux Manual PageSection : 3
Updated : January 09, 2022
Source : libcurl 7.82.0
Note : curl_easy_setopt options
NAMECURLOPT_PROXY_CAINFO_BLOB − proxy Certificate Authority (CA) bundle in PEM format
SYNOPSIS#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_CAINFO_BLOB,
struct curl_blob *stblob);
DESCRIPTIONThis option is for connecting to an HTTPS proxy, not an HTTPS server. Pass a pointer to a curl_blob structure, which contains information (pointer and size) about a memory block with binary data of PEM encoded content 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_BLOB(3) is not needed. This option overrides CURLOPT_PROXY_CAINFO(3).
DEFAULTNULL
PROTOCOLSUsed with HTTPS proxy
EXAMPLEchar *strpem; /* strpem must point to a PEM string */
CURL *curl = curl_easy_init();
if(curl) {
struct curl_blob blob;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
/* using an HTTPS proxy */
curl_easy_setopt(curl, CURLOPT_PROXY, "https://localhost:443");
blob.data = strpem;
blob.len = strlen(strpem);
blob.flags = CURL_BLOB_COPY;
curl_easy_setopt(curl, CURLOPT_PROXY_CAINFO_BLOB, &blob);
ret = curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
AVAILABILITYAdded in 7.77.0. This option is supported by the rustls (since 7.82.0), OpenSSL, Secure Transport and Schannel backends.
RETURN VALUEReturns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space.
SEE ALSOCURLOPT_PROXY_CAINFO(3), CURLOPT_PROXY_CAPATH (3)," CURLOPT_PROXY_SSL_VERIFYPEER(3), CURLOPT_PROXY_SSL_VERIFYHOST (3)," CURLOPT_CAINFO(3), CURLOPT_CAINFO_BLOB (3)," CURLOPT_CAPATH(3)," CURLOPT_SSL_VERIFYPEER(3), CURLOPT_SSL_VERIFYHOST (3)," 0
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