#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
void copy_file(const char*, const char*);
void cerrar(int fileto, int filefrom, const char *file, const char *file2);
/**
 * main - copy a file.
 * @ac: argc.
 * @av: argv.
 * Return: Always 0.
 */
int main(int ac, char **av)
{
    if (ac != 3)
    {
        dprintf(2, "Usage: cp file_from file_to\n");
        exit(97);
    }
    if (!av[1])
    {
        dprintf(2, "Error: Can't read from file %s\n", av[1]);
        exit(98);
    }
    if (!av[2])
    {
        dprintf(2, "Error: Can't write to %s\n", av[2]);
        exit(99);
    }
    copy_file(av[1], av[2]);
    return (0);
}

/**
 * copy_file - copy a file.
 * @file_from: file from.
 * @file_to: file to.
 */
void copy_file(const char *file_from, const char *file_to)
{
    int fileto, filefrom, a;
    char *bf[1024];

    filefrom = open(file_from, O_RDONLY);
    if (filefrom < 0)
    {
        dprintf(2, "Error: Can't read from file %s\n", file_from);
        exit(98);
    }
    fileto = open(file_to, O_RDWR | O_CREAT | O_TRUNC, 0664);
    if (fileto < 0)
    {
        dprintf(2, "Error: Can't write to %s\n", file_to);
        exit(99);
    }
    a = read(filefrom, bf, 1024);
    if (a < 0)
    {
        dprintf(2, "Error: Can't read from file %s\n", file_from);
        exit(98);
    }
    if (write(fileto, bf, a) < 0)
    {
        dprintf(2, "Error: Can't write to %s\n", file_to);
        exit(99);
    }
    cerrar(fileto, filefrom, file_from, file_from);
}

/**
 * cerrar - close all open files.
 * @filefrom: file from.
 * @fileto: file to.
 * @file: file to.
 * @file2: file from.
 */
void cerrar(int fileto, int filefrom, const char *file, const char *file2)
{
    if (close(fileto) == -1)
    {
        dprintf(2, "Error: Can't close fd %s\n", file);
        exit(100);
    }
    if (close(filefrom) == -1)
    {
        dprintf(2, "Error: Can't close fd %s\n", file2);
        exit(100);
    }
    close(fileto);
    close(filefrom);
}