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85 lines
2.0 KiB
Markdown
85 lines
2.0 KiB
Markdown
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---
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c: Copyright (C) Daniel Stenberg, <daniel.se>, et al.
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SPDX-License-Identifier: curl
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Title: CURLOPT_CAINFO_BLOB
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Section: 3
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Source: libcurl
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See-also:
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- CURLOPT_CAINFO (3)
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- CURLOPT_CAPATH (3)
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- CURLOPT_SSL_VERIFYHOST (3)
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- CURLOPT_SSL_VERIFYPEER (3)
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---
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# NAME
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CURLOPT_CAINFO_BLOB - Certificate Authority (CA) bundle in PEM format
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# SYNOPSIS
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~~~c
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CAINFO_BLOB,
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struct curl_blob *stblob);
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~~~
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# DESCRIPTION
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Pass a pointer to a curl_blob structure, which contains information (pointer
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and size) about a memory block with binary data of PEM encoded content holding
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one or more certificates to verify the HTTPS server with.
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If the blob is initialized with the flags member of struct curl_blob set to
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CURL_BLOB_COPY, the application does not have to keep the buffer around after
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setting this.
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If CURLOPT_SSL_VERIFYPEER(3) is zero and you avoid verifying the
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server's certificate, CURLOPT_CAINFO_BLOB(3) is not needed.
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This option overrides CURLOPT_CAINFO(3).
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# DEFAULT
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NULL
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# PROTOCOLS
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All TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.
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# EXAMPLE
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~~~c
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#include <string.h>
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int main(void)
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{
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char *strpem; /* strpem must point to a PEM string */
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CURL *curl = curl_easy_init();
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if(curl) {
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CURLcode res;
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struct curl_blob blob;
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
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blob.data = strpem;
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blob.len = strlen(strpem);
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blob.flags = CURL_BLOB_COPY;
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curl_easy_setopt(curl, CURLOPT_CAINFO_BLOB, &blob);
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res = curl_easy_perform(curl);
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curl_easy_cleanup(curl);
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}
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}
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~~~
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# AVAILABILITY
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Added in 7.77.0.
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This option is supported by the BearSSL (since 7.79.0), mbedTLS (since
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7.81.0), rustls (since 7.82.0), wolfSSL (since 8.2.0), OpenSSL, Secure
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Transport and Schannel backends.
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# RETURN VALUE
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Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or
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CURLE_OUT_OF_MEMORY if there was insufficient heap space.
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