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 +1,78 @@
+---
+c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
+SPDX-License-Identifier: curl
+Title: CURLOPT_SSH_KNOWNHOSTS
+Section: 3
+Source: libcurl
+See-also:
+  - CURLOPT_SSH_AUTH_TYPES (3)
+  - CURLOPT_SSH_HOST_PUBLIC_KEY_MD5 (3)
+  - CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256 (3)
+Protocol:
+  - SFTP
+  - SCP
+Added-in: 7.19.6
+---
+
+# NAME
+
+CURLOPT_SSH_KNOWNHOSTS - filename holding the SSH known hosts
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSH_KNOWNHOSTS, char *fname);
+~~~
+
+# DESCRIPTION
+
+Pass a pointer to a null-terminated string holding the filename of the
+known_host file to use. The known_hosts file should use the OpenSSH file
+format. If this file is specified, libcurl only accepts connections with hosts
+that are known and present in that file, with a matching public key. Use
+CURLOPT_SSH_KEYFUNCTION(3) to alter the default behavior on host and key
+matches and mismatches.
+
+We strongly suggest users doing SCP or SFTP transfers to set this option to
+make sure that the network communication is done with the intended server and
+not an impostor.
+
+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, "sftp://example.com/file");
+    curl_easy_setopt(curl, CURLOPT_SSH_KNOWNHOSTS,
+                     "/home/clarkkent/.ssh/known_hosts");
+    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).