/*
  ihex
  Copyright (C) 2025 Thomas Albers Raviola <thomas@thomaslabs.org>

  This program 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.

  This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
*/

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

void
die(const char *current_file, const char *fmt, ...)
{
	va_list ap;
	int saved_errno = errno;

	if (current_file)
		fprintf(stderr, "File %s: ", current_file);

	va_start(ap, fmt);
	if (fmt)
		vfprintf(stderr, fmt, ap);
	va_end(ap);

	if (errno)
		fprintf(stderr, "  %s\n", strerror(saved_errno));

	exit(EXIT_FAILURE);
}

void *
ecalloc(size_t nmemb, size_t size)
{
	void *p;

	if (!(p = calloc(nmemb, size)))
		die(NULL, "Could not allocate memory!\n");

	return p;
}

void *
erealloc(void *ptr, size_t size)
{
	if (!(ptr = realloc(ptr, size)))
		die(NULL, "Could not reallocate memory!\n");

	return ptr;
}