1 // SPDX-License-Identifier: GPL-2.0
2 #include "print_binary.h"
3 #include <linux/log2.h>
4 #include "sane_ctype.h"
5
print_binary(unsigned char * data,size_t len,size_t bytes_per_line,print_binary_t printer,void * extra)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
is_printable_array(char * p,unsigned int len)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