1 // SPDX-License-Identifier: GPL-2.0 2 #include "print_binary.h" 3 #include <linux/log2.h> 4 #include "sane_ctype.h" 5 6 void print_binary(unsigned char *data, size_t len, 7 size_t bytes_per_line, print_binary_t printer, 8 void *extra) 9 { 10 size_t i, j, mask; 11 12 if (!printer) 13 return; 14 15 bytes_per_line = roundup_pow_of_two(bytes_per_line); 16 mask = bytes_per_line - 1; 17 18 printer(BINARY_PRINT_DATA_BEGIN, 0, extra); 19 for (i = 0; i < len; i++) { 20 if ((i & mask) == 0) { 21 printer(BINARY_PRINT_LINE_BEGIN, -1, extra); 22 printer(BINARY_PRINT_ADDR, i, extra); 23 } 24 25 printer(BINARY_PRINT_NUM_DATA, data[i], extra); 26 27 if (((i & mask) == mask) || i == len - 1) { 28 for (j = 0; j < mask-(i & mask); j++) 29 printer(BINARY_PRINT_NUM_PAD, -1, extra); 30 31 printer(BINARY_PRINT_SEP, i, extra); 32 for (j = i & ~mask; j <= i; j++) 33 printer(BINARY_PRINT_CHAR_DATA, data[j], extra); 34 for (j = 0; j < mask-(i & mask); j++) 35 printer(BINARY_PRINT_CHAR_PAD, i, extra); 36 printer(BINARY_PRINT_LINE_END, -1, extra); 37 } 38 } 39 printer(BINARY_PRINT_DATA_END, -1, extra); 40 } 41 42 int is_printable_array(char *p, unsigned int len) 43 { 44 unsigned int i; 45 46 if (!p || !len || p[len - 1] != 0) 47 return 0; 48 49 len--; 50 51 for (i = 0; i < len; i++) { 52 if (!isprint(p[i]) && !isspace(p[i])) 53 return 0; 54 } 55 return 1; 56 } 57