Update networking layer w/ CURL and emscripten impl

2025-11-08 01:50:36 +11:00
parent a17925904d
commit f6874dc55a
4105 changed files with 694617 additions and 179 deletions
@@ -0,0 +1,91 @@
+---
+c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
+SPDX-License-Identifier: curl
+Title: CURLOPT_PROXY_CRLFILE
+Section: 3
+Source: libcurl
+See-also:
+  - CURLOPT_PROXY_SSL_VERIFYHOST (3)
+  - CURLOPT_PROXY_SSL_VERIFYPEER (3)
+  - CURLOPT_SSL_VERIFYHOST (3)
+  - CURLOPT_SSL_VERIFYPEER (3)
+Protocol:
+  - TLS
+TLS-backend:
+  - GnuTLS
+  - mbedTLS
+  - OpenSSL
+Added-in: 7.52.0
+---
+
+# NAME
+
+CURLOPT_PROXY_CRLFILE - HTTPS proxy Certificate Revocation List file
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_CRLFILE, char *file);
+~~~
+
+# DESCRIPTION
+
+This option is for connecting to an HTTPS proxy, not an HTTPS server.
+
+Pass a char pointer to a null-terminated string naming a *file* with the
+concatenation of CRL (in PEM format) to use in the certificate validation that
+occurs during the SSL exchange.
+
+When curl is built to use GnuTLS, there is no way to influence the use of CRL
+passed to help in the verification process. When libcurl is built with OpenSSL
+support, X509_V_FLAG_CRL_CHECK and X509_V_FLAG_CRL_CHECK_ALL are both set,
+requiring CRL check against all the elements of the certificate chain if a CRL
+file is passed.
+
+This option makes sense only when used in combination with the
+CURLOPT_PROXY_SSL_VERIFYPEER(3) option.
+
+A specific error code (*CURLE_SSL_CRL_BADFILE*) is defined with the option. It
+is returned when the SSL exchange fails because the CRL file cannot be loaded.
+A failure in certificate verification due to a revocation information found in
+the CRL does not trigger this specific error.
+
+The application does not have to keep the string around after setting this
+option.
+
+Using this option multiple times makes the last set string override the
+previous ones. Set it to NULL to disable its use again.
+
+# DEFAULT
+
+NULL
+
+# %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_PROXY, "https://localhost:80");
+    curl_easy_setopt(curl, CURLOPT_PROXY_CRLFILE, "/etc/certs/crl.pem");
+    res = curl_easy_perform(curl);
+    curl_easy_cleanup(curl);
+  }
+}
+~~~
+
+# %AVAILABILITY%
+
+# RETURN VALUE
+
+curl_easy_setopt(3) returns a CURLcode indicating success or error.
+
+CURLE_OK (0) means everything was OK, non-zero means an error occurred, see
+libcurl-errors(3).