curl/docs/libcurl/opts/CURLOPT_CAINFO_BLOB.3
Daniel Stenberg 2bc1d775f5
copyright: update all copyright lines and remove year ranges
- they are mostly pointless in all major jurisdictions
- many big corporations and projects already don't use them
- saves us from pointless churn
- git keeps history for us
- the year range is kept in COPYING

checksrc is updated to allow non-year using copyright statements

Closes #10205
2023-01-03 09:19:21 +01:00

74 lines
2.8 KiB
Groff

.\" **************************************************************************
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.\" * Copyright (C) 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.se/docs/copyright.html.
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.\" * copies of the Software, and permit persons to whom the Software is
.\" * furnished to do so, under the terms of the COPYING file.
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.\"
.TH CURLOPT_CAINFO_BLOB 3 "31 March 2021" "libcurl 7.77.0" "curl_easy_setopt options"
.SH NAME
CURLOPT_CAINFO_BLOB \- Certificate Authority (CA) bundle in PEM format
.SH SYNOPSIS
.nf
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CAINFO_BLOB,
struct curl_blob *stblob);
.fi
.SH DESCRIPTION
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 server with.
If \fICURLOPT_SSL_VERIFYPEER(3)\fP is zero and you avoid verifying the
server's certificate, \fICURLOPT_CAINFO_BLOB(3)\fP is not needed.
This option overrides \fICURLOPT_CAINFO(3)\fP.
.SH DEFAULT
NULL
.SH PROTOCOLS
All TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.
.SH EXAMPLE
.nf
char *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/");
blob.data = strpem;
blob.len = strlen(strpem);
blob.flags = CURL_BLOB_COPY;
curl_easy_setopt(curl, CURLOPT_CAINFO_BLOB, &blob);
ret = curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
.fi
.SH AVAILABILITY
Added in 7.77.0.
This option is supported by the BearSSL (since 7.79.0), mbedTLS (since 7.81.0),
rustls (since 7.82.0), OpenSSL, Secure Transport and Schannel backends.
.SH 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.
.SH "SEE ALSO"
.BR CURLOPT_CAINFO "(3), " CURLOPT_CAPATH "(3), "
.BR CURLOPT_SSL_VERIFYPEER "(3), " CURLOPT_SSL_VERIFYHOST "(3), "