GNURLOPT_HTTP09_ALLOWED(3)

💖 GNURLOPT_HTTP09_ALLOWED(3) 💖

okay so bestie, this is the GNURLOPT_HTTP09_ALLOWED(3) page from the curl_easy_setopt options manual, and it's literally all about letting HTTP/0.9 responses through. tiny option, big main-character energy 💅✨

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📛 NAME 📛

CURLOPT_HTTP09 — allow HTTP/0.9 response. periodt. 💖

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🧚 SYNOPSIS 🧚

#include <gnurl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HTTP09_ALLOWED, long
allowed);

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🌸 DESCRIPTION 🌸

Pass the long argument allowed set to 1L to allow HTTP/0.9 responses. yes, 1L specifically, bestie — not vibes, not 1, not "sure whatever" ✨

A HTTP/0.9 response is a server response entirely without headers and only a body. You can connect to lots of random TCP services and still get a response that curl might consider to be HTTP/0.9! not me side-eyeing every random TCP service 🙈💀

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🎀 DEFAULT 🎀

• curl allowed HTTP/0.9 responses by default before 7.66.0
• Since 7.66.0, libcurl requires this option set to 1L to allow HTTP/0.9 responses.

so yeah, the timeline matters here — before 7.66.0 it was chill by default, and since 7.66.0 you gotta opt in with 1L. 🫶

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🦋 PROTOCOLS 🦋

HTTP — that's the whole protocol list, iconic. 🔥

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⭐ EXAMPLE ⭐

CURL *curl = curl_easy_init();
if(curl) {
  CURLcode ret;
  curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
  curl_easy_setopt(curl, CURLOPT_HTTP09_ALLOWED, 1L);
  ret = curl_easy_perform(curl);
}

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🌈 AVAILABILITY 🌈

Option added in 7.64.0, present along with HTTP. slay. 💖

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👑 RETURN VALUE 👑

Returns CURLE_OK if HTTP is supported, and CURLE_UNKNOWN_OPTION if not. like, a clean little success/fail situation, no cap. ✨

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🔎 SEE ALSO 🔎

• CURLOPT_SSLVERSION(3)
• CURLOPT_HTTP_VERSION(3)

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and that's the page, bestie: libcurl 7.64.0, dated 17 Dec 2018, and the page name is GNURLOPT_HTTP09_ALLOWED(3) — bye, go allow those HTTP/0.9 responses responsibly 🫶💅🎀