oobmsg.c

/**
 * Print out of band message
 *
 * Copyright (c) 2016, Sergey Ryazanov <ryazanov.s.a@gmail.com>
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <stdio.h>
#include <stdarg.h>

/** Print out of band message (error, warning, etc...) */
void oob_print(const char *fmt, ...)
{
	va_list val;

	fflush(stdout);	/* Syncronize stdout stream */

	va_start(val, fmt);

	vfprintf(stderr, fmt, val);

	fflush(stderr);	/* Syncronize stderr stream */

	va_end(val);
}