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 +1,69 @@
+---
+c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
+SPDX-License-Identifier: curl
+Title: CURLINFO_PRIMARY_PORT
+Section: 3
+Source: libcurl
+See-also:
+  - CURLINFO_LOCAL_PORT (3)
+  - CURLINFO_PRIMARY_IP (3)
+  - curl_easy_getinfo (3)
+  - curl_easy_setopt (3)
+Protocol:
+  - All
+Added-in: 7.21.0
+---
+
+# NAME
+
+CURLINFO_PRIMARY_PORT - get the latest destination port number
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_PRIMARY_PORT, long *portp);
+~~~
+
+# DESCRIPTION
+
+Pass a pointer to a long to receive the destination port of the most recent
+connection done with this **curl** handle.
+
+This is the destination port of the actual TCP or UDP connection libcurl used.
+If a proxy was used for the most recent transfer, this is the port number of
+the proxy, if no proxy was used it is the port number of the most recently
+accessed URL.
+
+# %PROTOCOLS%
+
+# EXAMPLE
+
+~~~c
+int main(void)
+{
+  CURL *curl = curl_easy_init();
+  if(curl) {
+    CURLcode res;
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
+    res = curl_easy_perform(curl);
+    if(res == CURLE_OK) {
+      long port;
+      res = curl_easy_getinfo(curl, CURLINFO_PRIMARY_PORT, &port);
+      if(!res)
+        printf("Connected to remote port: %ld\n", port);
+    }
+    curl_easy_cleanup(curl);
+  }
+}
+~~~
+
+# %AVAILABILITY%
+
+# RETURN VALUE
+
+curl_easy_getinfo(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).