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- .\" generated by cd2nroff 0.1 from CURLOPT_CAPATH.md
- .TH CURLOPT_CAPATH 3 "2025-01-17" libcurl
- .SH NAME
- CURLOPT_CAPATH \- directory holding CA certificates
- .SH SYNOPSIS
- .nf
- #include <curl/curl.h>
- CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CAPATH, char *capath);
- .fi
- .SH DESCRIPTION
- Pass a char pointer to a null\-terminated string naming a directory holding
- multiple CA certificates to verify the peer with. If libcurl is built against
- OpenSSL, the certificate directory must be prepared using the OpenSSL c_rehash
- utility. This makes sense only when used in combination with the
- \fICURLOPT_SSL_VERIFYPEER(3)\fP option.
- The \fICURLOPT_CAPATH(3)\fP function apparently does not work in Windows due
- to some limitation in OpenSSL.
- The application does not have to keep the string around after setting this
- option.
- The default value for this can be figured out with \fICURLINFO_CAPATH(3)\fP.
- .SH DEFAULT
- A path detected at build time.
- .SH PROTOCOLS
- This functionality affects all TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.
- This option works only with the following TLS backends:
- GnuTLS, OpenSSL, mbedTLS and wolfSSL
- .SH EXAMPLE
- .nf
- int main(void)
- {
- CURL *curl = curl_easy_init();
- if(curl) {
- CURLcode res;
- curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
- curl_easy_setopt(curl, CURLOPT_CAPATH, "/etc/cert-dir");
- res = curl_easy_perform(curl);
- curl_easy_cleanup(curl);
- }
- }
- .fi
- .SH AVAILABILITY
- Added in curl 7.9.8
- .SH RETURN VALUE
- CURLE_OK if supported; or an error such as:
- CURLE_NOT_BUILT_IN \- Not supported by the SSL backend
- CURLE_UNKNOWN_OPTION
- CURLE_OUT_OF_MEMORY
- .SH SEE ALSO
- .BR CURLINFO_CAPATH (3),
- .BR CURLOPT_CAINFO (3),
- .BR CURLOPT_DEBUGFUNCTION (3),
- .BR CURLOPT_STDERR (3)
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