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_REFERER
+Section: 3
+Source: libcurl
+See-also:
+  - CURLOPT_REFERER (3)
+  - curl_easy_getinfo (3)
+  - curl_easy_header (3)
+  - curl_easy_setopt (3)
+Protocol:
+  - HTTP
+Added-in: 7.76.0
+---
+
+# NAME
+
+CURLINFO_REFERER - get the used referrer request header
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_REFERER, char **hdrp);
+~~~
+
+# DESCRIPTION
+
+Pass in a pointer to a char pointer and get the referrer header used in the
+most recent request.
+
+The **hdrp** pointer is NULL or points to private memory. You **must not**
+free it. The memory gets freed automatically when you call
+curl_easy_cleanup(3) on the corresponding curl handle.
+
+# %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_REFERER, "https://example.org/referrer");
+    res = curl_easy_perform(curl);
+    if(res == CURLE_OK) {
+      char *hdr = NULL;
+      curl_easy_getinfo(curl, CURLINFO_REFERER, &hdr);
+      if(hdr)
+        printf("Referrer header: %s\n", hdr);
+    }
+    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).