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KHTML_OPEN(3) FreeBSD Library Functions Manual KHTML_OPEN(3)

khtml_open
open kcgihtml context

library “libkcgihtml”

#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);

Zeroes and initialises a new context req with the underlying kcgi(3) context r as allocated with khttp_parse(3) or khttp_fcgi_parse(3). It should only be called after khttp_body(3). 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.

If kcgi_writer_disable(3) has been called, the process will be killed with an uncatchable signal.

Returns an enum kcgi_err indicating the error state.
Success (not an error).
Internal memory allocation failure.
The output connection has been terminated. For FastCGI connections, the current connection should be released with khttp_free(3) and parse loop reentered.
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.
Internal system error writing to the output stream.

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);

kcgihtml(3)

The referenced HTML5 standard is HTML5.2.

Written by Kristaps Dzonsons <kristaps@bsd.lv>.
June 12, 2022 FreeBSD 13.1-RELEASE

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