80 lines
1.7 KiB
Markdown
80 lines
1.7 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_CAPATH
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Section: 3
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Source: libcurl
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See-also:
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- CURLINFO_CAPATH (3)
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- CURLOPT_CAINFO (3)
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- CURLOPT_DEBUGFUNCTION (3)
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- CURLOPT_STDERR (3)
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---
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# NAME
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CURLOPT_CAPATH - directory holding CA certificates
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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_CAPATH, char *capath);
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~~~
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# DESCRIPTION
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Pass a char pointer to a null-terminated string naming a directory holding
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multiple CA certificates to verify the peer with. If libcurl is built against
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OpenSSL, the certificate directory must be prepared using the OpenSSL c_rehash
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utility. This makes sense only when used in combination with the
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CURLOPT_SSL_VERIFYPEER(3) option.
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The CURLOPT_CAPATH(3) function apparently does not work in Windows due
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to some limitation in OpenSSL.
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The application does not have to keep the string around after setting this
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option.
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The default value for this can be figured out with CURLINFO_CAPATH(3).
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# DEFAULT
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A default path detected at build time.
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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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int main(void)
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{
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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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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
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curl_easy_setopt(curl, CURLOPT_CAPATH, "/etc/cert-dir");
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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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This option is supported by the OpenSSL, GnuTLS and mbedTLS (since 7.56.0)
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backends.
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# RETURN VALUE
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CURLE_OK if supported; or an error such as:
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CURLE_NOT_BUILT_IN - Not supported by the SSL backend
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CURLE_UNKNOWN_OPTION
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CURLE_OUT_OF_MEMORY
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