#include "print_binary.h"#include <linux/log2.h>#include "sane_ctype.h" void print_binary(unsigned char *data, size_t len,		  size_t bytes_per_line, print_binary_t printer,		  void *extra){	size_t i, j, mask; 	if (!printer)		return; 	bytes_per_line = roundup_pow_of_two(bytes_per_line);	mask = bytes_per_line - 1; 	printer(BINARY_PRINT_DATA_BEGIN, 0, extra);	for (i = 0; i < len; i++) {		if ((i & mask) == 0) {			printer(BINARY_PRINT_LINE_BEGIN, -1, extra);			printer(BINARY_PRINT_ADDR, i, extra);		} 		printer(BINARY_PRINT_NUM_DATA, data[i], extra); 		if (((i & mask) == mask) || i == len - 1) {			for (j = 0; j < mask-(i & mask); j++)				printer(BINARY_PRINT_NUM_PAD, -1, extra); 			printer(BINARY_PRINT_SEP, i, extra);			for (j = i & ~mask; j <= i; j++)				printer(BINARY_PRINT_CHAR_DATA, data[j], extra);			for (j = 0; j < mask-(i & mask); j++)				printer(BINARY_PRINT_CHAR_PAD, i, extra);			printer(BINARY_PRINT_LINE_END, -1, extra);		}	}	printer(BINARY_PRINT_DATA_END, -1, extra);} int is_printable_array(char *p, unsigned int len){	unsigned int i; 	if (!p || !len || p[len - 1] != 0)		return 0; 	len--; 	for (i = 0; i < len; i++) {		if (!isprint(p[i]) && !isspace(p[i]))			return 0;	}	return 1;}