1 // SPDX-License-Identifier: GPL-2.0
2 #include "print_binary.h"
3 #include <linux/log2.h>
4 #include <linux/ctype.h>
5
binary__fprintf(unsigned char * data,size_t len,size_t bytes_per_line,binary__fprintf_t printer,void * extra,FILE * fp)6 int binary__fprintf(unsigned char *data, size_t len,
7 size_t bytes_per_line, binary__fprintf_t printer,
8 void *extra, 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
is_printable_array(char * p,unsigned int len)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