rpi4b-temp-humidity/util.c

/*
 * util.c - Utility functions
 * Copyright (C) 2024  Alexander Rosenberg
 *
 * 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. See the LICENSE file for more information.
 */
#include "util.h"

#include <err.h>
#include <string.h>

Options GLOBAL_OPTS;

void cleanup_options(Options *opts) {
    FREE_CHECKED(opts->config_path);
    FREE_CHECKED(opts->gpio_path);
}

void *malloc_checked(size_t n) {
    return realloc_checked(NULL, n);
}

void *realloc_checked(void *old_ptr, size_t n) {
    void *ptr = realloc(old_ptr, n);
    if (n && !ptr) {
        errx(1, "out of memory!");
    }
    return ptr;
}

void *strdup_checked(const char *str) {
    char *new_str = strdup(str);
    if (!new_str) {
        errx(1, "out of memory!");
    }
    return new_str;
}