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| .\" * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. |
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| .TH CURLOPT_CAINFO_BLOB 3 "31 March 2021" libcurl libcurl |
| .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), wolfSSL (since 8.2.0), 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), " |
