CURLOPT_CAINFO_BLOB - Certificate Authority (CA) bundle in PEM format
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CAINFO_BLOB, struct curl_blob *stblob);
CURLOPT_CAINFO_BLOB(3) curl_easy_setopt options CURLOPT_CAINFO_BLOB(3) NAME CURLOPT_CAINFO_BLOB - Certificate Authority (CA) bundle in PEM format SYNOPSIS #include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CAINFO_BLOB, struct curl_blob *stblob); 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 CURLOPT_SSL_VERIFYPEER(3) is zero and you avoid verifying the server's certificate, CURLOPT_CAINFO_BLOB(3) is not needed. This option overrides CURLOPT_CAINFO(3). DEFAULT NULL PROTOCOLS All TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc. EXAMPLE 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); } 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. 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. ATTRIBUTES See attributes(7) for descriptions of the following attributes: +---------------+------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+------------------+ |Availability | web/curl | +---------------+------------------+ |Stability | Uncommitted | +---------------+------------------+ SEE ALSO CURLOPT_CAINFO(3), CURLOPT_CAPATH(3), CURLOPT_SSL_VERIFYPEER(3), CUR- LOPT_SSL_VERIFYHOST(3), NOTES Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source- code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from https://curl.se/down- load/curl-7.83.1.tar.bz2. Further information about this software can be found on the open source community website at http://curl.haxx.se/. libcurl 7.83.1 January 09, 2022 CURLOPT_CAINFO_BLOB(3)