License: GPL 3

[tl-append] / common.c

/*
 * tl-append: time-logger appending shell
 * Copyright (C) 2023  Scott Worley <scottworley@scottworley.com>
 *
 * 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, version 3.
 *
 * 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/>.
 */

#define _POSIX_C_SOURCE 2
#include "common.h"

#include <stdio.h>
#include <stdlib.h>

const char *const FILENAME = "tl.log";

void die(const char *message) {
  fputs(message, stderr);
  fputc('\n', stderr);
  exit(1);
}

void die_err(const char *message) {
  perror(message);
  exit(1);
}

char *encode_time(time_t t) {
  struct tm tm;
  localtime_r(&t, &tm);
  const size_t size = 20;
  char *out = (char *)malloc(size);
  if (strftime(out, size, "%Y %m %d %H %M %S", &tm) != size - 1)
    die("Couldn't format time");
  return out;
}