1 | // SPDX-License-Identifier: GPL-2.0 |
2 | #include "print_binary.h" |
3 | #include <linux/log2.h> |
4 | #include <linux/ctype.h> |
5 | |
6 | int binary__fprintf(unsigned char *data, size_t len, |
7 | size_t bytes_per_line, binary__fprintf_t printer, |
8 | void *, FILE *fp) |
9 | { |
10 | size_t i, j, mask; |
11 | int printed = 0; |
12 | |
13 | if (!printer) |
14 | return 0; |
15 | |
16 | bytes_per_line = roundup_pow_of_two(bytes_per_line); |
17 | mask = bytes_per_line - 1; |
18 | |
19 | printed += printer(BINARY_PRINT_DATA_BEGIN, 0, extra, fp); |
20 | for (i = 0; i < len; i++) { |
21 | if ((i & mask) == 0) { |
22 | printed += printer(BINARY_PRINT_LINE_BEGIN, -1, extra, fp); |
23 | printed += printer(BINARY_PRINT_ADDR, i, extra, fp); |
24 | } |
25 | |
26 | printed += printer(BINARY_PRINT_NUM_DATA, data[i], extra, fp); |
27 | |
28 | if (((i & mask) == mask) || i == len - 1) { |
29 | for (j = 0; j < mask-(i & mask); j++) |
30 | printed += printer(BINARY_PRINT_NUM_PAD, -1, extra, fp); |
31 | |
32 | printer(BINARY_PRINT_SEP, i, extra, fp); |
33 | for (j = i & ~mask; j <= i; j++) |
34 | printed += printer(BINARY_PRINT_CHAR_DATA, data[j], extra, fp); |
35 | for (j = 0; j < mask-(i & mask); j++) |
36 | printed += printer(BINARY_PRINT_CHAR_PAD, i, extra, fp); |
37 | printed += printer(BINARY_PRINT_LINE_END, -1, extra, fp); |
38 | } |
39 | } |
40 | printed += printer(BINARY_PRINT_DATA_END, -1, extra, fp); |
41 | return printed; |
42 | } |
43 | |
44 | int is_printable_array(char *p, unsigned int len) |
45 | { |
46 | unsigned int i; |
47 | |
48 | if (!p || !len || p[len - 1] != 0) |
49 | return 0; |
50 | |
51 | len--; |
52 | |
53 | for (i = 0; i < len && p[i]; i++) { |
54 | if (!isprint(p[i]) && !isspace(p[i])) |
55 | return 0; |
56 | } |
57 | return 1; |
58 | } |
59 | |