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 +1,93 @@
+---
+c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
+SPDX-License-Identifier: curl
+Title: curl_mime_subparts
+Section: 3
+Source: libcurl
+See-also:
+  - curl_mime_addpart (3)
+  - curl_mime_init (3)
+Protocol:
+  - HTTP
+  - IMAP
+  - SMTP
+Added-in: 7.56.0
+---
+
+# NAME
+
+curl_mime_subparts - set sub-parts of a multipart mime part
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLcode curl_mime_subparts(curl_mimepart *part, curl_mime *subparts);
+~~~
+
+# DESCRIPTION
+
+curl_mime_subparts(3) sets a multipart mime part's content from a mime
+structure.
+
+*part* is a handle to the multipart part.
+
+*subparts* is a mime structure handle holding the sub-parts. After
+curl_mime_subparts(3) succeeds, the mime structure handle belongs to the
+multipart part and must not be freed explicitly. It may however be updated by
+subsequent calls to mime API functions.
+
+Setting a part's contents multiple times is valid: only the value set by the
+last call is retained. It is possible to unassign previous part's contents by
+setting *subparts* to NULL.
+
+# %PROTOCOLS%
+
+# EXAMPLE
+
+~~~c
+
+static char *inline_html = "<title>example</title>";
+static char *inline_text = "once upon the time";
+
+int main(void)
+{
+  CURL *curl = curl_easy_init();
+  if(curl) {
+    struct curl_slist *slist;
+
+    /* The inline part is an alternative proposing the html and the text
+       versions of the email. */
+    curl_mime *alt = curl_mime_init(curl);
+    curl_mimepart *part;
+
+    /* HTML message. */
+    part = curl_mime_addpart(alt);
+    curl_mime_data(part, inline_html, CURL_ZERO_TERMINATED);
+    curl_mime_type(part, "text/html");
+
+    /* Text message. */
+    part = curl_mime_addpart(alt);
+    curl_mime_data(part, inline_text, CURL_ZERO_TERMINATED);
+
+    /* Create the inline part. */
+    part = curl_mime_addpart(alt);
+    curl_mime_subparts(part, alt);
+    curl_mime_type(part, "multipart/alternative");
+    slist = curl_slist_append(NULL, "Content-Disposition: inline");
+    curl_mime_headers(part, slist, 1);
+  }
+}
+~~~
+
+# %AVAILABILITY%
+
+# RETURN VALUE
+
+This function returns a CURLcode indicating success or error.
+
+CURLE_OK (0) means everything was OK, non-zero means an error occurred, see
+libcurl-errors(3). If CURLOPT_ERRORBUFFER(3) was set with curl_easy_setopt(3)
+there can be an error message stored in the error buffer when non-zero is
+returned.