/*********************************************************/

/*  toksvc: a framework-native token broker service      */

/*  Copyright (C) 2020  Z. Gilboa                        */

/*  Released under GPLv2 and GPLv3; see COPYING.TOKSVC.  */

/*********************************************************/

#include <psxtypes/psxtypes.h>

#include <ntapi/ntapi.h>

#include <toksvc/toksvc.h>

#include "toksvc_driver_impl.h"

#include "toksvc_nolibc_impl.h"

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

int toks_dprintf(int fd, const char * fmt, ...)

{

	int	ret;

	int	cnt;

	int	size;

	va_list	ap;

	char *	ch;

	char *	buf;

	char	chbuf[2048];

	va_start(ap,fmt);

	size = sizeof(chbuf);

	buf  = ((cnt = ntapi->vsnprintf(chbuf,size,fmt,ap)) < size)

		? chbuf : calloc(1, cnt + 1);

	va_end(ap);

	if (buf == chbuf) {

		(void)0;

	} else if (buf) {

		va_start(ap,fmt);

		ntapi->vsprintf(buf,fmt,ap);

		va_end(ap);

	} else {

		return -1;

	}

	ret = 0;

	ch  = buf;

	for (; cnt && ret>=0; ) {

		ret = toks_write(fd,ch,cnt);

		while ((ret == NT_STATUS_ALERTED) || (ret == NT_STATUS_USER_APC))

			ret = toks_write(fd,ch,cnt);

		ch  += ret;

		cnt -= ret;

	}

	ret = (ret < 0) ? -1 : ch - buf;

	if (buf != chbuf)

		free(buf);

	return ret;

}