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 +1,80 @@
+---
+c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
+SPDX-License-Identifier: curl
+Title: CURLOPT_NOBODY
+Section: 3
+Source: libcurl
+See-also:
+  - CURLOPT_HTTPGET (3)
+  - CURLOPT_MIMEPOST (3)
+  - CURLOPT_POSTFIELDS (3)
+  - CURLOPT_REQUEST_TARGET (3)
+  - CURLOPT_UPLOAD (3)
+Protocol:
+  - All
+Added-in: 7.1
+---
+
+# NAME
+
+CURLOPT_NOBODY - do the download request without getting the body
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLcode curl_easy_setopt(CURL *handle, CURLOPT_NOBODY, long opt);
+~~~
+
+# DESCRIPTION
+
+A long parameter set to 1 tells libcurl to not include the body-part in the
+output when doing what would otherwise be a download. For HTTP(S), this makes
+libcurl do a HEAD request. For most other protocols it means just not asking
+to transfer the body data.
+
+For HTTP operations when CURLOPT_NOBODY(3) has been set, disabling this
+option (with 0) makes it a GET again - only if the method is still set to be
+HEAD. The proper way to get back to a GET request is to set
+CURLOPT_HTTPGET(3) and for other methods, use the POST or UPLOAD
+options.
+
+Enabling CURLOPT_NOBODY(3) means asking for a download without a body.
+
+If you do a transfer with HTTP that involves a method other than HEAD, you get
+a body (unless the resource and server sends a zero byte body for the specific
+URL you request).
+
+# DEFAULT
+
+0, the body is transferred
+
+# %PROTOCOLS%
+
+# EXAMPLE
+
+~~~c
+int main(void)
+{
+  CURL *curl = curl_easy_init();
+  if(curl) {
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
+
+    /* get us the resource without a body - use HEAD */
+    curl_easy_setopt(curl, CURLOPT_NOBODY, 1L);
+
+    /* Perform the request */
+    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).