mirror of
https://github.com/curl/curl.git
synced 2026-08-26 11:33:34 +03:00
e3fe020089
Remove the PROTOCOLS section from the source files completely and instead generate them based on the header data in the curldown files. It also generates TLS backend information for options marked for TLS as protocol. Closes #13175
94 lines
2.7 KiB
Markdown
94 lines
2.7 KiB
Markdown
---
|
|
c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
SPDX-License-Identifier: curl
|
|
Title: CURLOPT_PROXY_SSL_VERIFYPEER
|
|
Section: 3
|
|
Source: libcurl
|
|
See-also:
|
|
- CURLOPT_PROXY_SSL_VERIFYHOST (3)
|
|
- CURLOPT_SSL_VERIFYHOST (3)
|
|
- CURLOPT_SSL_VERIFYPEER (3)
|
|
Protocol:
|
|
- TLS
|
|
TLS-backend:
|
|
- All
|
|
---
|
|
|
|
# NAME
|
|
|
|
CURLOPT_PROXY_SSL_VERIFYPEER - verify the proxy's SSL certificate
|
|
|
|
# SYNOPSIS
|
|
|
|
~~~c
|
|
#include <curl/curl.h>
|
|
|
|
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_SSL_VERIFYPEER,
|
|
long verify);
|
|
~~~
|
|
|
|
# DESCRIPTION
|
|
|
|
Pass a long as parameter set to 1L to enable or 0L to disable.
|
|
|
|
This option tells curl to verify the authenticity of the HTTPS proxy's
|
|
certificate. A value of 1 means curl verifies; 0 (zero) means it does not.
|
|
|
|
This is the proxy version of CURLOPT_SSL_VERIFYPEER(3) that is used for
|
|
ordinary HTTPS servers.
|
|
|
|
When negotiating a TLS or SSL connection, the server sends a certificate
|
|
indicating its identity. Curl verifies whether the certificate is authentic,
|
|
i.e. that you can trust that the server is who the certificate says it is.
|
|
This trust is based on a chain of digital signatures, rooted in certification
|
|
authority (CA) certificates you supply. curl uses a default bundle of CA
|
|
certificates (the path for that is determined at build time) and you can
|
|
specify alternate certificates with the CURLOPT_PROXY_CAINFO(3) option or
|
|
the CURLOPT_PROXY_CAPATH(3) option.
|
|
|
|
When CURLOPT_PROXY_SSL_VERIFYPEER(3) is enabled, and the verification
|
|
fails to prove that the certificate is authentic, the connection fails. When
|
|
the option is zero, the peer certificate verification succeeds regardless.
|
|
|
|
Authenticating the certificate is not enough to be sure about the server. You
|
|
typically also want to ensure that the server is the server you mean to be
|
|
talking to. Use CURLOPT_PROXY_SSL_VERIFYHOST(3) for that. The check that the
|
|
hostname in the certificate is valid for the hostname you are connecting to is
|
|
done independently of the CURLOPT_PROXY_SSL_VERIFYPEER(3) option.
|
|
|
|
WARNING: disabling verification of the certificate allows bad guys to
|
|
man-in-the-middle the communication without you knowing it. Disabling
|
|
verification makes the communication insecure. Just having encryption on a
|
|
transfer is not enough as you cannot be sure that you are communicating with
|
|
the correct end-point.
|
|
|
|
# DEFAULT
|
|
|
|
1
|
|
|
|
# EXAMPLE
|
|
|
|
~~~c
|
|
int main(void)
|
|
{
|
|
CURL *curl = curl_easy_init();
|
|
if(curl) {
|
|
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
|
|
|
|
/* Set the default value: strict certificate check please */
|
|
curl_easy_setopt(curl, CURLOPT_PROXY_SSL_VERIFYPEER, 1L);
|
|
|
|
curl_easy_perform(curl);
|
|
}
|
|
}
|
|
~~~
|
|
|
|
# AVAILABILITY
|
|
|
|
Added in 7.52.0
|
|
|
|
If built TLS enabled.
|
|
|
|
# RETURN VALUE
|
|
|
|
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
|