42-archive/42-piscine-c/d12/ex03/srcs/ft_hexdump.c
2016-08-25 20:50:28 +02:00

79 lines
2 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* printers.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: jhalford <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2016/08/15 19:26:27 by jhalford #+# #+# */
/* Updated: 2016/08/19 22:57:38 by jhalford ### ########.fr */
/* */
/* ************************************************************************** */
#include "header.h"
void ft_print_contents(void *addr, unsigned int size)
{
void *a;
a = addr;
ft_putstr(" |");
while (a - addr < 16)
{
if ((a - addr) >= size)
break ;
else if (*(char *)a < 32 || *(char *)a > 126)
ft_putchar('.');
else
ft_putchar(*(char *)a);
a++;
}
ft_putchar('|');
}
void ft_print_hex_contents(void *addr, unsigned int size, int option)
{
void *a;
a = addr;
(void)option;
while (a - addr < 16)
{
ft_putchar(' ');
if (option && IS_DIV((a - addr), 8))
ft_putchar(' ');
if ((a - addr) >= size)
ft_putstr(" ");
else
ft_putnbr_base16(*(char *)a, 2);
a++;
}
}
void *ft_hexdump(void *addr, unsigned int size, int option)
{
void *a;
a = addr;
while ((a - addr) < size)
{
ft_putnbr_base16((int)(a - addr), 7 + option);
ft_print_hex_contents(a, (size - (a - addr)), option);
if (option)
ft_print_contents(a, (size - (a - addr)));
ft_putchar('\n');
a += 16;
if (!ft_strncmp((char *)a, (char *)(a - 16), 16))
{
ft_putstr("*\n");
while (!ft_strncmp((char *)a, (char *)(a - 16), 16))
a += 16;
}
}
if (a != addr)
{
ft_putnbr_base16(size, 7 + option);
ft_putchar('\n');
}
return (addr);
}