Tribblix: manual page: CURLOPT_PROXY_SSLCERT

CURLOPT_PROXY_SSLCERT_BLOB(3) Introduction to Library Functions

NAME

CURLOPT_PROXY_SSLCERT_BLOB - SSL proxy client certificate from memory
blob

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_SSLCERT_BLOB,
struct curl_blob *blob);

DESCRIPTION

Pass a pointer to a curl_blob structure, which contains information
(pointer and size) about a memory block with binary data of the
certificate used to connect to the HTTPS proxy. The format must be
"P12" on Schannel. The format must be "P12" or "PEM" on OpenSSL. The
string "P12" or "PEM" must be specified with
CURLOPT_PROXY_SSLCERTTYPE(3).

If the blob is initialized with the flags member of struct curl_blob
set to CURL_BLOB_COPY, the application does not have to keep the
buffer around after setting this.

This option is an alternative to CURLOPT_PROXY_SSLCERT(3) which
instead expects a filename as input.

DEFAULT

NULL

PROTOCOLS

This functionality affects all TLS based protocols: HTTPS, FTPS,
IMAPS, POP3S, SMTPS etc.

This option works only with the following TLS backends: OpenSSL and
Schannel

EXAMPLE

extern char *certificateData; /* point to data */
extern size_t filesize; /* size of the data */

int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode result;
struct curl_blob blob;
blob.data = certificateData;
blob.len = filesize;
blob.flags = CURL_BLOB_COPY;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
curl_easy_setopt(curl, CURLOPT_PROXY, "https://proxy.example");
curl_easy_setopt(curl, CURLOPT_PROXY_SSLKEY, "key.pem");
curl_easy_setopt(curl, CURLOPT_PROXY_KEYPASSWD, "s3cret");
curl_easy_setopt(curl, CURLOPT_PROXY_SSLCERT_BLOB, &blob);
result = curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
}

AVAILABILITY

Added in curl 7.71.0

RETURN VALUE

curl_easy_setopt(3) returns a CURLcode indicating success or error.

CURLE_OK (0) means everything was OK, non-zero means an error
occurred, see libcurl-errors(3).