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curldown is this new file format for libcurl man pages. It is markdown inspired with differences: - Each file has a set of leading headers with meta-data - Supports a small subset of markdown - Uses .md file extensions for editors/IDE/GitHub to treat them nicely - Generates man pages very similar to the previous ones - Generates man pages that still convert nicely to HTML on the website - Detects and highlights mentions of curl symbols automatically (when their man page section is specified) tools: - cd2nroff: converts from curldown to nroff man page - nroff2cd: convert an (old) nroff man page to curldown - cdall: convert many nroff pages to curldown versions - cd2cd: verifies and updates a curldown to latest curldown This setup generates .3 versions of all the curldown versions at build time. CI: Since the documentation is now technically markdown in the eyes of many things, the CI runs many more tests and checks on this documentation, including proselint, link checkers and tests that make sure we capitalize the first letter after a period... Closes #12730
87 lines
2.3 KiB
Markdown
87 lines
2.3 KiB
Markdown
---
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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
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Section: 3
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Source: libcurl
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See-also:
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- CURLINFO_CAINFO (3)
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- CURLOPT_CAINFO_BLOB (3)
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- CURLOPT_CAPATH (3)
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- CURLOPT_CA_CACHE_TIMEOUT (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 - path to Certificate Authority (CA) bundle
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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, char *path);
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~~~
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# DESCRIPTION
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Pass a char pointer to a null-terminated string naming a file holding one or
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more certificates to verify the peer with.
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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(3) need not even indicate an
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accessible file.
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This option is by default set to the system path where libcurl's CA
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certificate bundle is assumed to be stored, as established at build time.
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(iOS and macOS) When curl uses Secure Transport this option is supported. If
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the option is not set, then curl uses the certificates in the system and user
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Keychain to verify the peer.
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(Schannel) This option is supported for Schannel in Windows 7 or later but we
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recommend not using it until Windows 8 since it works better starting then.
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If the option is not set, then curl uses the certificates in the Windows'
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store of root certificates (the default for Schannel).
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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_CAINFO(3).
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# DEFAULT
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Built-in system specific. When curl is built with Secure Transport or
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Schannel, this option is not set by default.
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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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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
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curl_easy_setopt(curl, CURLOPT_CAINFO, "/etc/certs/cabundle.pem");
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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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For the SSL engines that do not support certificate files the
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CURLOPT_CAINFO(3) option is ignored. Schannel support added in libcurl
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7.60.
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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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