mirror of
https://github.com/curl/curl.git
synced 2024-12-09 06:30:06 +08:00
125 lines
4.2 KiB
Groff
125 lines
4.2 KiB
Groff
.\" **************************************************************************
|
|
.\" * _ _ ____ _
|
|
.\" * Project ___| | | | _ \| |
|
|
.\" * / __| | | | |_) | |
|
|
.\" * | (__| |_| | _ <| |___
|
|
.\" * \___|\___/|_| \_\_____|
|
|
.\" *
|
|
.\" * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
.\" *
|
|
.\" * This software is licensed as described in the file COPYING, which
|
|
.\" * you should have received as part of this distribution. The terms
|
|
.\" * are also available at https://curl.haxx.se/docs/copyright.html.
|
|
.\" *
|
|
.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
|
|
.\" * copies of the Software, and permit persons to whom the Software is
|
|
.\" * furnished to do so, under the terms of the COPYING file.
|
|
.\" *
|
|
.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
.\" * KIND, either express or implied.
|
|
.\" *
|
|
.\" **************************************************************************
|
|
.\"
|
|
.TH CURLOPT_SSL_CTX_DATA 3 "19 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
|
|
.SH NAME
|
|
CURLOPT_SSL_CTX_DATA \- custom pointer passed to ssl_ctx callback
|
|
.SH SYNOPSIS
|
|
#include <curl/curl.h>
|
|
|
|
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSL_CTX_DATA, void *pointer);
|
|
.SH DESCRIPTION
|
|
Data \fIpointer\fP to pass to the ssl context callback set by the option
|
|
\fICURLOPT_SSL_CTX_FUNCTION(3)\fP, this is the pointer you'll get as third
|
|
parameter.
|
|
.SH DEFAULT
|
|
NULL
|
|
.SH PROTOCOLS
|
|
All TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.
|
|
.SH EXAMPLE
|
|
.nf
|
|
/* OpenSSL specific */
|
|
|
|
#include <openssl/ssl.h>
|
|
#include <curl/curl.h>
|
|
#include <stdio.h>
|
|
|
|
static CURLcode sslctx_function(CURL *curl, void *sslctx, void *parm)
|
|
{
|
|
X509_STORE *store;
|
|
X509 *cert=NULL;
|
|
BIO *bio;
|
|
char *mypem = (char *)parm;
|
|
/* get a BIO */
|
|
bio=BIO_new_mem_buf(mypem, -1);
|
|
/* use it to read the PEM formatted certificate from memory into an
|
|
* X509 structure that SSL can use
|
|
*/
|
|
PEM_read_bio_X509(bio, &cert, 0, NULL);
|
|
if(cert == NULL)
|
|
printf("PEM_read_bio_X509 failed...\\n");
|
|
|
|
/* get a pointer to the X509 certificate store (which may be empty) */
|
|
store=SSL_CTX_get_cert_store((SSL_CTX *)sslctx);
|
|
|
|
/* add our certificate to this store */
|
|
if(X509_STORE_add_cert(store, cert)==0)
|
|
printf("error adding certificate\\n");
|
|
|
|
/* decrease reference counts */
|
|
X509_free(cert);
|
|
BIO_free(bio);
|
|
|
|
/* all set to go */
|
|
return CURLE_OK;
|
|
}
|
|
|
|
int main(void)
|
|
{
|
|
CURL * ch;
|
|
CURLcode rv;
|
|
char *mypem = /* example CA cert PEM - shortened */
|
|
"-----BEGIN CERTIFICATE-----\\n"
|
|
"MIIHPTCCBSWgAwIBAgIBADANBgkqhkiG9w0BAQQFADB5MRAwDgYDVQQKEwdSb290\\n"
|
|
"IENBMR4wHAYDVQQLExVodHRwOi8vd3d3LmNhY2VydC5vcmcxIjAgBgNVBAMTGUNB\\n"
|
|
"IENlcnQgU2lnbmluZyBBdXRob3JpdHkxITAfBgkqhkiG9w0BCQEWEnN1cHBvcnRA\\n"
|
|
"Y2FjZXJ0Lm9yZzAeFw0wMzAzMzAxMjI5NDlaFw0zMzAzMjkxMjI5NDlaMHkxEDAO\\n"
|
|
"GCSNe9FINSkYQKyTYOGWhlC0elnYjyELn8+CkcY7v2vcB5G5l1YjqrZslMZIBjzk\\n"
|
|
"zk6q5PYvCdxTby78dOs6Y5nCpqyJvKeyRKANihDjbPIky/qbn3BHLt4Ui9SyIAmW\\n"
|
|
"omTxJBzcoTWcFbLUvFUufQb1nA5V9FrWk9p2rSVzTMVD\\n"
|
|
"-----END CERTIFICATE-----\\n";
|
|
|
|
rv=curl_global_init(CURL_GLOBAL_ALL);
|
|
ch=curl_easy_init();
|
|
rv=curl_easy_setopt(ch, CURLOPT_SSLCERTTYPE, "PEM");
|
|
rv=curl_easy_setopt(ch, CURLOPT_SSL_VERIFYPEER, 1L);
|
|
rv=curl_easy_setopt(ch, CURLOPT_URL, "https://www.example.com/");
|
|
|
|
/* Retrieve page using cacerts' certificate -> will succeed
|
|
* load the certificate by installing a function doing the necessary
|
|
* "modifications" to the SSL CONTEXT just before link init
|
|
*/
|
|
rv=curl_easy_setopt(ch, CURLOPT_SSL_CTX_FUNCTION, *sslctx_function);
|
|
rv=curl_easy_setopt(ch, CURLOPT_SSL_CTX_DATA, mypem);
|
|
rv=curl_easy_perform(ch);
|
|
if(rv==CURLE_OK)
|
|
printf("*** transfer succeeded ***\\n");
|
|
else
|
|
printf("*** transfer failed ***\\n");
|
|
|
|
curl_easy_cleanup(ch);
|
|
curl_global_cleanup();
|
|
return rv;
|
|
}
|
|
.fi
|
|
.SH AVAILABILITY
|
|
Added in 7.11.0 for OpenSSL. Added in 7.42.0 for wolfSSL/CyaSSL. Other SSL
|
|
backends not supported.
|
|
.SH RETURN VALUE
|
|
CURLE_OK if supported; or an error such as:
|
|
|
|
CURLE_NOT_BUILT_IN - Not supported by the SSL backend
|
|
|
|
CURLE_UNKNOWN_OPTION
|
|
.SH "SEE ALSO"
|
|
.BR CURLOPT_SSL_CTX_FUNCTION "(3), " CURLOPT_SSLVERSION "(3), "
|