/*
 * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
 *
 * Permission to use, copy, modify, and 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 "../config.h"

#if HAVE___PROGNAME

#include <stddef.h>

extern char *__progname;

const char *
getprogname(void)
{
	return __progname;
}

#elif HAVE_PROGRAM_INVOCATION_SHORT_NAME

#include <errno.h>

extern char *program_invocation_short_name;

const char *
getprogname(void)
{
	return program_invocation_short_name;
}

#else
# warning Found no way to get the program name, will use "gmid" for all utilities.
const char *
getprogname(void)
{
	return "gmid";
}

#endif