Solution ex12

ex12/ft_print_memory.c

@@ -6,20 +6,88 @@
 /*   By: tischmid <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/03/21 05:44:01 by tischmid          #+#    #+#             */
-/*   Updated: 2023/03/21 06:43:18 by tischmid         ###   ########.fr       */
+/*   Updated: 2023/03/22 18:37:44 by tischmid         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include <unistd.h>
+#include <stdio.h>
+#define ULL unsigned long long
+#define WIDTH 16
+#define DELIMITER " "
 
-void	ft_putchar(char c)
+void	print_hex(ULL addr_number, int length)
 {
-	write(1, &c, 1);
+	int		digit;
+	char	*digits;
+
+	printf("<%llu %d>", addr_number, length);
+	fflush(stdout);
+	digits = "0123456789abcdef";
+	if (addr_number < 16)
+	{
+		while (--length > 0)
+			write(1, "0", 1);
+		write(1, &digits[addr_number], 1);
+		return ;
+	}
+	digit = digits[addr_number % 16];
+	print_hex(addr_number /= 16, length - 1);
+	write(1, &digit, 1);
+}
+
+int	ft_strlen(char *str)
+{
+	int	size;
+
+	size = 0;
+	while (*str++)
+		size++;
+	return (size);
+}
+
+void	print_addr_vals(void *addr, unsigned int width, int hex, char *delim)
+{
+	while (width-- > 0)
+	{
+		if (hex)
+			print_hex(*(unsigned char *)addr, 2);
+		else if (*(char *)addr > 31 && *(char *)addr < 127)
+			write(1, addr, 1);
+		else
+			write(1, ".", 1);
+		if ((!hex || (hex && width % 2 == 0)) && *delim)
+			write(1, delim, 1);
+		addr++;
+	}
 }
 
 void	*ft_print_memory(void *addr, unsigned int size)
 {
-	
+	int				lines;
+	unsigned int	width;
+	unsigned int	missing_chars;
+
+	lines = -1;
+	width = WIDTH;
+	while (1)
+	{
+		if (size - (++lines) * WIDTH < 16)
+			width = size - lines * WIDTH;
+		print_hex((ULL) addr, 16);
+		write(1, ":", 1);
+		write(1, DELIMITER, 1);
+		print_addr_vals(addr, width, 1, DELIMITER);
+		missing_chars = (WIDTH - width) * (2 + ft_strlen(DELIMITER));
+		missing_chars -= (WIDTH - width + 1) / 2;
+		while (missing_chars-- > 0)
+			write(1, DELIMITER, 1);
+		print_addr_vals(addr, width, 0, "");
+		write(1, "\n", 1);
+		addr += width;
+		if (width != WIDTH)
+			break ;
+	}
 	return (addr);
 }
 
@@ -28,8 +96,18 @@ void	*ft_print_memory(void *addr, unsigned int size)
 
 int	main(void)
 {
-	char	s[] = "0123456789abcdef0123456789abcdefghijklmnopqrstuvwxyz";
-	ft_print_memory(s, 20);
+	char    *ptr = "\x42\x6f\x6e\x6a\x6f\x75\x72\x20\x6c\x65"
+				   "\x73\x20\x61\x6d\x69\x6e\x63\x68\x65\x73"
+				   "\x09\x0a\x09\x63\x07\x20\x65\x73\x74\x20"
+				   "\x66\x6f\x75\x09\x74\x6f\x75\x74\x09\x63"
+				   "\x65\x20\x71\x75\x20\x6f\x6e\x20\x70\x65"
+				   "\x75\x74\x20\x66\x61\x69\x72\x65\x20\x61"
+				   "\x76\x65\x63\x09\x0a\x09\x70\x72\x69\x6e"
+				   "\x74\x5f\x6d\x65\x6d\x6f\x72\x79\x0a\x0a"
+				   "\x0a\x09\x6c\x6f\x6c\x2e\x6c\x6f\x6c\x0a"
+				   "\x20\x00";
+	// char	*ptr = "hello";
+	ft_print_memory(ptr, 146);
 	return (0);
 }
 */ ////