KHTTP_PRINTF(3) Library Functions Manual KHTTP_PRINTF(3)

khttp_printf — put variable content for kcgi

library “libkcgi”

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

enum kcgi_err
khttp_printf(struct kreq *req, const char *fmt, ...);

Writes output according to the given fmt to a kcgi(3) context req as allocated with khttp_parse(3) or khttp_fcgi_parse(3). The format is as for printf(3). It should only be called after khttp_body(3).

If fmt is NULL, it does nothing and returns success.

If kcgi_writer_disable(3) has been previously invoked, this function will abort(3).

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.

kcgi(3), kcgi_writer_disable(3), khttp_body(3), khttp_parse(3)

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

September 15, 2024 OpenBSD 7.5