KHTML_OPEN(3) Library Functions Manual KHTML_OPEN(3)

NAME

khtml_openopen kcgihtml context

LIBRARY

library “libkcgihtml”

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

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.

RETURN VALUES

Returns an enum kcgi_err indicating the error state.
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)

AUTHORS

Written by Kristaps Dzonsons <kristaps@bsd.lv>.
March 26, 2020 OpenBSD 6.7