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_CA_CACHE_TIMEOUT
+Section: 3
+Source: libcurl
+See-also:
+  - CURLOPT_CAINFO (3)
+  - CURLOPT_CAINFO_BLOB (3)
+  - CURLOPT_CAPATH (3)
+  - CURLOPT_SSL_VERIFYHOST (3)
+  - CURLOPT_SSL_VERIFYPEER (3)
+Protocol:
+  - TLS
+TLS-backend:
+  - GnuTLS
+  - OpenSSL
+  - Schannel
+  - wolfSSL
+Added-in: 7.87.0
+---
+
+# NAME
+
+CURLOPT_CA_CACHE_TIMEOUT - life-time for cached certificate stores
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CA_CACHE_TIMEOUT, long age);
+~~~
+
+# DESCRIPTION
+
+Pass a long, this sets the timeout in seconds. This tells libcurl the maximum
+time any cached CA certificate store it has in memory may be kept and reused
+for new connections. Once the timeout has expired, a subsequent fetch
+requiring a CA certificate has to reload it.
+
+Building a CA certificate store from a CURLOPT_CAINFO(3) file is a slow
+operation so curl may cache the generated certificate store internally to
+speed up future connections.
+
+Set the timeout to zero to completely disable caching, or set to -1 to retain
+the cached store remain forever. By default, libcurl caches this info for 24
+hours.
+
+# DEFAULT
+
+86400 (24 hours)
+
+# %PROTOCOLS%
+
+# EXAMPLE
+
+~~~c
+int main(void)
+{
+  CURL *curl = curl_easy_init();
+  if(curl) {
+    CURLcode res;
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/foo.bin");
+
+    /* only reuse certificate stores for a short time */
+    curl_easy_setopt(curl, CURLOPT_CA_CACHE_TIMEOUT, 60L);
+
+    res = curl_easy_perform(curl);
+
+    /* in this second request, the cache is not used if more than
+       sixty seconds passed since the previous connection */
+    res = curl_easy_perform(curl);
+
+    curl_easy_cleanup(curl);
+  }
+}
+~~~
+
+# HISTORY
+
+This option is supported by OpenSSL and its forks (since 7.87.0), Schannel
+(since 8.5.0), wolfSSL (since 8.9.0) and GnuTLS (since 8.9.0).
+
+# %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).