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Some CURLOPT constants defined in the curl public headers were initially enums (= ints), or macros with bare numeric values. Recent curl releases upgraded them to `long` constants, to make them pass correctly to `curl_easy_setop()` by default, i.e. without requiring a `(long)` cast. This patch drops such casts from the examples embedded in the docs. At the same time it documents which curl release made them `long` types, to keep them useful when working with previous libcurl versions. Also: - drop a `(long)` cast that was never necessary. - CURLOPT_ALTSVC_CTRL.md: bump local copy of macros to long. - test1119: make it ignore symbols ending with an underscore, to skip wildcard, e.g. `**CURLAUTH_***`. Closes #18130
89 lines
1.8 KiB
Markdown
89 lines
1.8 KiB
Markdown
---
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c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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SPDX-License-Identifier: curl
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Title: CURLOPT_WS_OPTIONS
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Section: 3
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Source: libcurl
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See-also:
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- CURLOPT_CONNECT_ONLY (3)
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- curl_ws_recv (3)
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- curl_ws_send (3)
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Protocol:
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- WS
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Added-in: 7.86.0
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---
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# NAME
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CURLOPT_WS_OPTIONS - WebSocket behavior options
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# SYNOPSIS
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~~~c
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_WS_OPTIONS, long bitmask);
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~~~
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# DESCRIPTION
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Pass a long with a bitmask to tell libcurl about specific WebSocket
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behaviors.
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To detach a WebSocket connection and use the curl_ws_send(3) and
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curl_ws_recv(3) functions after the HTTP upgrade procedure, set the
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CURLOPT_CONNECT_ONLY(3) option to 2L.
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Available bits in the bitmask
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## CURLWS_RAW_MODE (1)
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Deliver "raw" WebSocket traffic to the CURLOPT_WRITEFUNCTION(3)
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callback.
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In raw mode, libcurl does not handle pings or any other frame for the
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application.
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## CURLWS_NOAUTOPONG (2)
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Disable the automatic reply to PING messages. This means users must
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send a PONG message with curl_ws_send(3). This feature is added with
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version 8.14.0.
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# DEFAULT
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0
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# %PROTOCOLS%
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# EXAMPLE
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~~~c
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int main(void)
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{
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CURL *curl = curl_easy_init();
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if(curl) {
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CURLcode res;
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curl_easy_setopt(curl, CURLOPT_URL, "ws://example.com/");
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/* tell curl we deal with all the WebSocket magic ourselves */
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curl_easy_setopt(curl, CURLOPT_WS_OPTIONS, CURLWS_RAW_MODE);
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res = curl_easy_perform(curl);
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curl_easy_cleanup(curl);
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}
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}
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~~~
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# HISTORY
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**CURLWS_RAW_MODE** and **CURLWS_NOAUTOPONG** macros became `long` types
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in 8.16.0, prior to this version a `long` cast was necessary when passed
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to curl_easy_setopt(3).
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# %AVAILABILITY%
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# RETURN VALUE
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curl_easy_setopt(3) returns a CURLcode indicating success or error.
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CURLE_OK (0) means everything was OK, non-zero means an error occurred, see
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libcurl-errors(3).
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