/*
 * Copyright (C) 2023  Patrick McDermott
 *
 * This file is part of opkg-opk.
 *
 * opkg-opk is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * opkg-opk is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with opkg-opk.  If not, see <https://www.gnu.org/licenses/>.
 */

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

#include "error.h"

static const char *_opkg_opk_program_name;

void
opkg_opk_set_program_name(const char *program_name)
{
	_opkg_opk_program_name = program_name;
}

void __attribute__((format(__printf__, 1, 2)))
opkg_opk_error(const char *fmt, ...)
{
	va_list ap;

	fprintf(stderr, "%s: ", _opkg_opk_program_name);
	va_start(ap, fmt);
	vfprintf(stderr, fmt, ap);
	va_end(ap);
	fputc('\n', stderr);
}

void __attribute__((format(__printf__, 1, 2)))
opkg_opk_errno(const char *fmt, ...)
{
	va_list ap;

	fprintf(stderr, "%s: ", _opkg_opk_program_name);
	va_start(ap, fmt);
	vfprintf(stderr, fmt, ap);
	va_end(ap);
	fprintf(stderr, ": %s\n", strerror(errno));
}