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 +1,92 @@
+---
+c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
+SPDX-License-Identifier: curl
+Title: CURLOPT_DOH_SSL_VERIFYHOST
+Section: 3
+Source: libcurl
+See-also:
+  - CURLOPT_DOH_SSL_VERIFYPEER (3)
+  - CURLOPT_PROXY_SSL_VERIFYHOST (3)
+  - CURLOPT_PROXY_SSL_VERIFYPEER (3)
+  - CURLOPT_SSL_VERIFYHOST (3)
+  - CURLOPT_SSL_VERIFYPEER (3)
+Protocol:
+  - TLS
+TLS-backend:
+  - All
+Added-in: 7.76.0
+---
+
+# NAME
+
+CURLOPT_DOH_SSL_VERIFYHOST - verify the hostname in the DoH SSL certificate
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DOH_SSL_VERIFYHOST,
+                          long verify);
+~~~
+
+# DESCRIPTION
+
+Pass a long set to 2L as asking curl to *verify* the DoH (DNS-over-HTTPS)
+server's certificate name fields against the hostname.
+
+This option is the DoH equivalent of CURLOPT_SSL_VERIFYHOST(3) and
+only affects requests to the DoH server.
+
+When CURLOPT_DOH_SSL_VERIFYHOST(3) is 2, the SSL certificate provided by
+the DoH server must indicate that the server name is the same as the server
+name to which you meant to connect to, or the connection fails.
+
+curl considers the DoH server the intended one when the Common Name field or a
+Subject Alternate Name field in the certificate matches the hostname in the
+DoH URL to which you told curl to connect.
+
+When the *verify* value is set to 1L it is treated the same as 2L. However
+for consistency with the other *VERIFYHOST* options we suggest use 2 and
+not 1.
+
+When the *verify* value is set to 0L, the connection succeeds regardless of
+the names used in the certificate. Use that ability with caution.
+
+See also CURLOPT_DOH_SSL_VERIFYPEER(3) to verify the digital signature
+of the DoH server certificate.
+
+# DEFAULT
+
+2
+
+# %PROTOCOLS%
+
+# EXAMPLE
+
+~~~c
+int main(void)
+{
+  CURL *curl = curl_easy_init();
+  if(curl) {
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
+
+    curl_easy_setopt(curl, CURLOPT_DOH_URL,
+                     "https://cloudflare-dns.com/dns-query");
+
+    /* Disable host name verification of the DoH server */
+    curl_easy_setopt(curl, CURLOPT_DOH_SSL_VERIFYHOST, 0L);
+
+    curl_easy_perform(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).