curl/docs/libcurl/opts/CURLOPT_CAPATH.md
Daniel Stenberg 5a488251f7
curldown: fixups
- make DEFAULT sections less repetitive

- make historic mentions use HISTORY

- generate the protocols section on `# %PROTOCOLS%` instead of guessing
  where to put it

- generate the availability section on `# %AVAILABILITY%` instead of
  guessing where to put it

- make the protocols section more verbose

Closes #14227
2024-07-19 17:03:25 +02:00

82 lines
1.6 KiB
Markdown

---
c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
SPDX-License-Identifier: curl
Title: CURLOPT_CAPATH
Section: 3
Source: libcurl
See-also:
- CURLINFO_CAPATH (3)
- CURLOPT_CAINFO (3)
- CURLOPT_DEBUGFUNCTION (3)
- CURLOPT_STDERR (3)
Protocol:
- TLS
TLS-backend:
- OpenSSL
- GnuTLS
- mbedTLS
- wolfSSL
Added-in: 7.9.8
---
# NAME
CURLOPT_CAPATH - directory holding CA certificates
# SYNOPSIS
~~~c
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CAPATH, char *capath);
~~~
# 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
CURLOPT_SSL_VERIFYPEER(3) option.
The CURLOPT_CAPATH(3) 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 CURLINFO_CAPATH(3).
# DEFAULT
A path detected at build time.
# %PROTOCOLS%
# EXAMPLE
~~~c
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);
}
}
~~~
# %AVAILABILITY%
# 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