/* extlib.h
 *
 * Copyright 2024 axtlos <axtlos@disroot.org>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser 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 Lesser General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 *
 * SPDX-License-Identifier: LGPL-3.0-only
 */

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

#ifdef USE_SECURE_MEM
#define free(x) error - use free_secure
#define malloc(x) error - use malloc_secure

/// Automatically zero out a pointer before freeing it
void free_secure (void **__ptr, size_t ptrlen);

/// Automatically initialise the allocated memory with zeros
void *malloc_secure (size_t len);
#endif

/// Copy the data of one filestream to another */
void fcopy(FILE *f1, FILE *f2);

#if (_XOPEN_SOURCE == 500)
/// Recursively remove a directory pathname.
int rrmdir(char *pathname);
#endif

/// Compare the first n bytes of a memory area str to the value val.
/// Returns 0 if the values the same, any other value if they are not the same.
int memvcmp (void *str, char val, size_t n);

/// Convert a string to lowercase
char *strlwr(char *s);

/// Convert a string to uppercase
char *strupr(char *s);

/// Trim spaces from a string
char *trim (char *s, int *rem_front, int *rem_back);

/// Match string old and replace it with string replace
char *replace_str (char *s, char *old, char *replace);