KHTML_OPEN(3)

✨ NAME ✨

okay so bestie, this is KHTML_OPEN(3) — the page for khtml_open, which opens a kcgihtml context. yes, that's the whole name section, short and iconic 🎀.

📚 LIBRARY 📚

library libkcgihtml — that's the C library we're in, bestie 🫶.

🧾 SYNOPSIS 🧾

#include <sys/types.h>
#include <stdarg.h>
#include <stdint.h>
#include <kcgi.h>
#include <kcgihtml.h>

enum kcgi_err
khtml_open(struct khtmlreq *req, struct kreq *r, int opts);

💖 DESCRIPTION 💖

okay so khtml_open() zeroes and initialises a brand-new context req using the underlying kcgi(3) context r — and r has to be allocated with khttp_parse(3) or khttp_fcgi_parse(3), no cap 🧚.

It should only be called after khttp_body(3). like, that's the vibe check: body started, then open the HTML context.

If opts is set to KHTML_PRETTY, the output is lightly “pretty-printed” with newlines and indentation spaces ✨. by default, output is all on one line (cramped but valid, bestie 💅).

🚨 WARNING: if kcgi_writer_disable(3) has been called, the process will be killed with an uncatchable signal. not a drill, not a cute glitch — literally uncatchable 💀.

🎀 RETURN VALUES 🎀

Returns an enum kcgi_err indicating the error state. here's the whole squad:

• KCGI_OK — Success (not an error). 🎉
• KCGI_ENOMEM — Internal memory allocation failure. 😭
• KCGI_HUP — The output connection has been terminated. For FastCGI connections, the current connection should be released with khttp_free(3) and parse loop reentered. 🫠
• KCGI_FORM — The connection is still expecting headers with khttp_head(3). Indicates that khttp_body(3) did not return with success or was not invoked. For FastCGI connections, the current connection should be released with khttp_free(3) and parse loop reentered. 🙈
• KCGI_SYSTEM — Internal system error writing to the output stream. 💥

🌸 EXAMPLES 🌸

The following outputs a simple HTML page. It assumes r is a struct kreq pointer. For brevity, it does not do any error checking.

khttp_head(r, kresps[KRESP_STATUS],
  "%s", khttps[KHTTP_200]);
khttp_head(r, kresps[KRESP_CONTENT_TYPE],
  "%s", kmimetypes[KMIME_TEXT_HTML]);
khttp_body(r);
khtml_open(&req, r, 0);
khtml_elem(&req, KELEM_DOCTYPE);
khtml_elem(&req, KELEM_HTML);
khtml_elem(&req, KELEM_BODY);
khtml_puts(&req, "Hello, world");
khtml_close(&req);

👀 SEE ALSO 👀

• kcgihtml(3) — go read that too, bestie 💜

📏 STANDARDS 📏

The referenced HTML5 standard is HTML5.2: https://www.w3.org/TR/html52. periodt 🌈.

🫶 AUTHORS 🫶

Written by Kristaps Dzonsons <kristaps@bsd.lv>. iconic 👑.

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this page is from Debian (source/version), stamped $Mdocdate$ (date), and it's KHTML_OPEN(3) — mwah 💋✨