KHTML_WRITE(3)

NAME
khtml_write - put content data for kcgihtml

LIBRARY
libkcgihtml

SYNOPSIS
#include <sys/types.h>
#include <stdarg.h>
#include <stdint.h>
#include <kcgi.h>
#include <kcgihtml.h>
enum kcgi_err
khtml_write(const char *buf, size_t sz, void *arg);

DESCRIPTION
Writes binary data buf of length sz to a context arg, a struct khtmlreq initialised with khtml_open(3) and passed as an opaque pointer. If buf is NULL or sz is zero, does nothing and returns success. All of the content is HTML escaped, for example, the left-angle bracket "<" is rendered as "&lt;".

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_elem(&req, KELEM_P);
    khtml_write(&req, "Hello, world.", 13);
    khtml_close(&req);

SEE ALSO
kcgihtml(3)

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

AUTHORS
Written by Kristaps Dzonsons <kristaps@bsd.lv>.